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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
e47c9093 | 4 | * Copyright (C) 2004-2008 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
09372820 | 21 | /* See Fibre Channel protocol T11 FC-LS for details */ |
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | ||
91886523 | 26 | #include <scsi/scsi.h> |
dea3101e JB |
27 | #include <scsi/scsi_device.h> |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | ||
da0436e9 | 31 | #include "lpfc_hw4.h" |
dea3101e JB |
32 | #include "lpfc_hw.h" |
33 | #include "lpfc_sli.h" | |
da0436e9 | 34 | #include "lpfc_sli4.h" |
ea2151b4 | 35 | #include "lpfc_nl.h" |
dea3101e JB |
36 | #include "lpfc_disc.h" |
37 | #include "lpfc_scsi.h" | |
38 | #include "lpfc.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_crtn.h" | |
92d7f7b0 | 41 | #include "lpfc_vport.h" |
858c9f6c | 42 | #include "lpfc_debugfs.h" |
dea3101e JB |
43 | |
44 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
45 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
46 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
47 | struct lpfc_iocbq *); | |
a6ababd2 AB |
48 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
49 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
50 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
51 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
52 | struct lpfc_iocbq *iocb); | |
53 | static void lpfc_register_new_vport(struct lpfc_hba *phba, | |
54 | struct lpfc_vport *vport, | |
55 | struct lpfc_nodelist *ndlp); | |
92d7f7b0 | 56 | |
dea3101e JB |
57 | static int lpfc_max_els_tries = 3; |
58 | ||
e59058c4 | 59 | /** |
3621a710 | 60 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
61 | * @vport: pointer to a host virtual N_Port data structure. |
62 | * | |
63 | * This routine checks whether there is an outstanding host link | |
64 | * attention event during the discovery process with the @vport. It is done | |
65 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
66 | * link attention events during this @vport's discovery process, the @vport | |
67 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
68 | * be issued if the link state is not already in host link cleared state, | |
69 | * and a return code shall indicate whether the host link attention event | |
70 | * had happened. | |
71 | * | |
72 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
73 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
74 | * event will be ignored and a return code shall indicate no host link | |
75 | * attention event had happened. | |
76 | * | |
77 | * Return codes | |
78 | * 0 - no host link attention event happened | |
79 | * 1 - host link attention event happened | |
80 | **/ | |
858c9f6c | 81 | int |
2e0fef85 | 82 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 83 | { |
2e0fef85 JS |
84 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
85 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 86 | uint32_t ha_copy; |
dea3101e | 87 | |
2e0fef85 | 88 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
89 | phba->link_state == LPFC_LINK_DOWN || |
90 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e JB |
91 | return 0; |
92 | ||
93 | /* Read the HBA Host Attention Register */ | |
dea3101e | 94 | ha_copy = readl(phba->HAregaddr); |
dea3101e JB |
95 | |
96 | if (!(ha_copy & HA_LATT)) | |
97 | return 0; | |
98 | ||
99 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
100 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
101 | "0237 Pending Link Event during " | |
102 | "Discovery: State x%x\n", | |
103 | phba->pport->port_state); | |
dea3101e JB |
104 | |
105 | /* CLEAR_LA should re-enable link attention events and | |
106 | * we should then imediately take a LATT event. The | |
107 | * LATT processing should call lpfc_linkdown() which | |
108 | * will cleanup any left over in-progress discovery | |
109 | * events. | |
110 | */ | |
2e0fef85 JS |
111 | spin_lock_irq(shost->host_lock); |
112 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
113 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 114 | |
92d7f7b0 | 115 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 116 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 117 | |
c9f8735b | 118 | return 1; |
dea3101e JB |
119 | } |
120 | ||
e59058c4 | 121 | /** |
3621a710 | 122 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
123 | * @vport: pointer to a host virtual N_Port data structure. |
124 | * @expectRsp: flag indicating whether response is expected. | |
125 | * @cmdSize: size of the ELS command. | |
126 | * @retry: number of retries to the command IOCB when it fails. | |
127 | * @ndlp: pointer to a node-list data structure. | |
128 | * @did: destination identifier. | |
129 | * @elscmd: the ELS command code. | |
130 | * | |
131 | * This routine is used for allocating a lpfc-IOCB data structure from | |
132 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
133 | * passed into the routine for discovery state machine to issue an Extended | |
134 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
135 | * and preparation routine that is used by all the discovery state machine | |
136 | * routines and the ELS command-specific fields will be later set up by | |
137 | * the individual discovery machine routines after calling this routine | |
138 | * allocating and preparing a generic IOCB data structure. It fills in the | |
139 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
140 | * payload and response payload (if expected). The reference count on the | |
141 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
142 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
143 | * reference for the command's callback function to access later. | |
144 | * | |
145 | * Return code | |
146 | * Pointer to the newly allocated/prepared els iocb data structure | |
147 | * NULL - when els iocb data structure allocation/preparation failed | |
148 | **/ | |
dea3101e | 149 | static struct lpfc_iocbq * |
2e0fef85 JS |
150 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
151 | uint16_t cmdSize, uint8_t retry, | |
152 | struct lpfc_nodelist *ndlp, uint32_t did, | |
153 | uint32_t elscmd) | |
dea3101e | 154 | { |
2e0fef85 | 155 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 156 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
157 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
158 | struct ulp_bde64 *bpl; | |
159 | IOCB_t *icmd; | |
160 | ||
dea3101e | 161 | |
2e0fef85 JS |
162 | if (!lpfc_is_link_up(phba)) |
163 | return NULL; | |
dea3101e | 164 | |
dea3101e | 165 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 166 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
167 | |
168 | if (elsiocb == NULL) | |
169 | return NULL; | |
e47c9093 | 170 | |
dea3101e JB |
171 | icmd = &elsiocb->iocb; |
172 | ||
173 | /* fill in BDEs for command */ | |
174 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
175 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
176 | if (pcmd) | |
177 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
178 | if (!pcmd || !pcmd->virt) |
179 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
180 | |
181 | INIT_LIST_HEAD(&pcmd->list); | |
182 | ||
183 | /* Allocate buffer for response payload */ | |
184 | if (expectRsp) { | |
92d7f7b0 | 185 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
186 | if (prsp) |
187 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
188 | &prsp->phys); | |
fa4066b6 JS |
189 | if (!prsp || !prsp->virt) |
190 | goto els_iocb_free_prsp_exit; | |
dea3101e | 191 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 192 | } else |
dea3101e | 193 | prsp = NULL; |
dea3101e JB |
194 | |
195 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 196 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 197 | if (pbuflist) |
ed957684 JS |
198 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
199 | &pbuflist->phys); | |
fa4066b6 JS |
200 | if (!pbuflist || !pbuflist->virt) |
201 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
202 | |
203 | INIT_LIST_HEAD(&pbuflist->list); | |
204 | ||
205 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
206 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 207 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 208 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 209 | if (expectRsp) { |
92d7f7b0 | 210 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 211 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 212 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 213 | } else { |
92d7f7b0 | 214 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e JB |
215 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
216 | } | |
dea3101e JB |
217 | icmd->ulpBdeCount = 1; |
218 | icmd->ulpLe = 1; | |
219 | icmd->ulpClass = CLASS3; | |
220 | ||
92d7f7b0 JS |
221 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
222 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
223 | ||
224 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 225 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 226 | icmd->ulpCt_h = 0; |
eada272d JS |
227 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
228 | if (elscmd == ELS_CMD_ECHO) | |
229 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
230 | else | |
231 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
232 | } |
233 | ||
dea3101e JB |
234 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
235 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
236 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
237 | bpl->tus.f.bdeSize = cmdSize; | |
238 | bpl->tus.f.bdeFlags = 0; | |
239 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
240 | ||
241 | if (expectRsp) { | |
242 | bpl++; | |
243 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
244 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
245 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 246 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
247 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
248 | } | |
249 | ||
fa4066b6 | 250 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 251 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
252 | if (!elsiocb->context1) |
253 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
254 | elsiocb->context2 = pcmd; |
255 | elsiocb->context3 = pbuflist; | |
dea3101e | 256 | elsiocb->retry = retry; |
2e0fef85 | 257 | elsiocb->vport = vport; |
dea3101e JB |
258 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
259 | ||
260 | if (prsp) { | |
261 | list_add(&prsp->list, &pcmd->list); | |
262 | } | |
dea3101e JB |
263 | if (expectRsp) { |
264 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
265 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
266 | "0116 Xmit ELS command x%x to remote " | |
267 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
268 | elscmd, did, elsiocb->iotag, | |
269 | vport->port_state); | |
dea3101e JB |
270 | } else { |
271 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
272 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
273 | "0117 Xmit ELS response x%x to remote " | |
274 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
275 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
276 | cmdSize); | |
dea3101e | 277 | } |
c9f8735b | 278 | return elsiocb; |
dea3101e | 279 | |
fa4066b6 | 280 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
281 | if (expectRsp) |
282 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
283 | kfree(pbuflist); |
284 | ||
285 | els_iocb_free_prsp_exit: | |
286 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
287 | kfree(prsp); | |
288 | ||
289 | els_iocb_free_pcmb_exit: | |
290 | kfree(pcmd); | |
291 | lpfc_sli_release_iocbq(phba, elsiocb); | |
292 | return NULL; | |
293 | } | |
dea3101e | 294 | |
e59058c4 | 295 | /** |
3621a710 | 296 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
297 | * @vport: pointer to a host virtual N_Port data structure. |
298 | * | |
299 | * This routine issues a fabric registration login for a @vport. An | |
300 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
301 | * The routine invokes two mailbox commands to carry out fabric registration | |
302 | * login through the HBA firmware: the first mailbox command requests the | |
303 | * HBA to perform link configuration for the @vport; and the second mailbox | |
304 | * command requests the HBA to perform the actual fabric registration login | |
305 | * with the @vport. | |
306 | * | |
307 | * Return code | |
308 | * 0 - successfully issued fabric registration login for @vport | |
309 | * -ENXIO -- failed to issue fabric registration login for @vport | |
310 | **/ | |
3772a991 | 311 | int |
92d7f7b0 | 312 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 313 | { |
2e0fef85 | 314 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 315 | LPFC_MBOXQ_t *mbox; |
14691150 | 316 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
317 | struct lpfc_nodelist *ndlp; |
318 | struct serv_parm *sp; | |
dea3101e | 319 | int rc; |
98c9ea5c | 320 | int err = 0; |
dea3101e | 321 | |
92d7f7b0 JS |
322 | sp = &phba->fc_fabparam; |
323 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 324 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 325 | err = 1; |
92d7f7b0 | 326 | goto fail; |
98c9ea5c | 327 | } |
92d7f7b0 JS |
328 | |
329 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
330 | if (!mbox) { |
331 | err = 2; | |
92d7f7b0 | 332 | goto fail; |
98c9ea5c | 333 | } |
92d7f7b0 JS |
334 | |
335 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
336 | lpfc_config_link(phba, mbox); | |
337 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
338 | mbox->vport = vport; | |
339 | ||
0b727fea | 340 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
341 | if (rc == MBX_NOT_FINISHED) { |
342 | err = 3; | |
92d7f7b0 | 343 | goto fail_free_mbox; |
98c9ea5c | 344 | } |
92d7f7b0 JS |
345 | |
346 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
347 | if (!mbox) { |
348 | err = 4; | |
92d7f7b0 | 349 | goto fail; |
98c9ea5c | 350 | } |
3772a991 | 351 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0); |
98c9ea5c JS |
352 | if (rc) { |
353 | err = 5; | |
92d7f7b0 | 354 | goto fail_free_mbox; |
98c9ea5c | 355 | } |
92d7f7b0 JS |
356 | |
357 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
358 | mbox->vport = vport; | |
e47c9093 JS |
359 | /* increment the reference count on ndlp to hold reference |
360 | * for the callback routine. | |
361 | */ | |
92d7f7b0 JS |
362 | mbox->context2 = lpfc_nlp_get(ndlp); |
363 | ||
0b727fea | 364 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
365 | if (rc == MBX_NOT_FINISHED) { |
366 | err = 6; | |
92d7f7b0 | 367 | goto fail_issue_reg_login; |
98c9ea5c | 368 | } |
92d7f7b0 JS |
369 | |
370 | return 0; | |
371 | ||
372 | fail_issue_reg_login: | |
e47c9093 JS |
373 | /* decrement the reference count on ndlp just incremented |
374 | * for the failed mbox command. | |
375 | */ | |
92d7f7b0 JS |
376 | lpfc_nlp_put(ndlp); |
377 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
378 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
379 | kfree(mp); | |
380 | fail_free_mbox: | |
381 | mempool_free(mbox, phba->mbox_mem_pool); | |
382 | ||
383 | fail: | |
384 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 385 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 386 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
387 | return -ENXIO; |
388 | } | |
389 | ||
e59058c4 | 390 | /** |
3621a710 | 391 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
392 | * @vport: pointer to a host virtual N_Port data structure. |
393 | * @ndlp: pointer to a node-list data structure. | |
394 | * @sp: pointer to service parameter data structure. | |
395 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
396 | * | |
397 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
398 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
399 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
400 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
401 | * @vport against the previously assigned N_Port ID. If it is different from | |
402 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
403 | * is invoked on all the remaining nodes with the @vport to unregister the | |
404 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
405 | * is invoked to register login to the fabric. | |
406 | * | |
407 | * Return code | |
408 | * 0 - Success (currently, always return 0) | |
409 | **/ | |
92d7f7b0 JS |
410 | static int |
411 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
412 | struct serv_parm *sp, IOCB_t *irsp) | |
413 | { | |
414 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
415 | struct lpfc_hba *phba = vport->phba; | |
416 | struct lpfc_nodelist *np; | |
417 | struct lpfc_nodelist *next_np; | |
418 | ||
2e0fef85 JS |
419 | spin_lock_irq(shost->host_lock); |
420 | vport->fc_flag |= FC_FABRIC; | |
421 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
422 | |
423 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
424 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
425 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
426 | ||
427 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; | |
428 | ||
429 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2e0fef85 JS |
430 | spin_lock_irq(shost->host_lock); |
431 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
432 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
433 | } else { |
434 | /* | |
435 | * If we are a N-port connected to a Fabric, fixup sparam's so | |
436 | * logins to devices on remote loops work. | |
437 | */ | |
2e0fef85 | 438 | vport->fc_sparam.cmn.altBbCredit = 1; |
dea3101e JB |
439 | } |
440 | ||
2e0fef85 | 441 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 442 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 443 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
444 | ndlp->nlp_class_sup = 0; |
445 | if (sp->cls1.classValid) | |
446 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
447 | if (sp->cls2.classValid) | |
448 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
449 | if (sp->cls3.classValid) | |
450 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
451 | if (sp->cls4.classValid) | |
452 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
453 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
454 | sp->cmn.bbRcvSizeLsb; | |
455 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
456 | ||
92d7f7b0 JS |
457 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
458 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
459 | lpfc_printf_vlog(vport, KERN_WARNING, |
460 | LOG_ELS | LOG_VPORT, | |
461 | "1816 FLOGI NPIV supported, " | |
462 | "response data 0x%x\n", | |
463 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 464 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
465 | } else { |
466 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
467 | to call reg_vnpid atleast for the physcial host */ |
468 | lpfc_printf_vlog(vport, KERN_WARNING, | |
469 | LOG_ELS | LOG_VPORT, | |
470 | "1817 Fabric does not support NPIV " | |
471 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
472 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
473 | } | |
474 | } | |
dea3101e | 475 | |
92d7f7b0 JS |
476 | if ((vport->fc_prevDID != vport->fc_myDID) && |
477 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 478 | |
92d7f7b0 JS |
479 | /* If our NportID changed, we need to ensure all |
480 | * remaining NPORTs get unreg_login'ed. | |
481 | */ | |
482 | list_for_each_entry_safe(np, next_np, | |
483 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 484 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 485 | continue; |
92d7f7b0 JS |
486 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
487 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
488 | continue; | |
489 | spin_lock_irq(shost->host_lock); | |
490 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
491 | spin_unlock_irq(shost->host_lock); | |
492 | lpfc_unreg_rpi(vport, np); | |
493 | } | |
494 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
495 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 496 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 497 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 498 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
499 | } |
500 | } | |
dea3101e | 501 | |
92d7f7b0 | 502 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); |
dea3101e | 503 | |
92d7f7b0 JS |
504 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && |
505 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) { | |
506 | lpfc_register_new_vport(phba, vport, ndlp); | |
507 | return 0; | |
508 | } | |
509 | lpfc_issue_fabric_reglogin(vport); | |
dea3101e | 510 | return 0; |
dea3101e JB |
511 | } |
512 | ||
e59058c4 | 513 | /** |
3621a710 | 514 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
515 | * @vport: pointer to a host virtual N_Port data structure. |
516 | * @ndlp: pointer to a node-list data structure. | |
517 | * @sp: pointer to service parameter data structure. | |
518 | * | |
519 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
520 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
521 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
522 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
523 | * the received N_Port Name lexicographically, this node shall assign local | |
524 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
525 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
526 | * this node shall just wait for the remote node to issue PLOGI and assign | |
527 | * N_Port IDs. | |
528 | * | |
529 | * Return code | |
530 | * 0 - Success | |
531 | * -ENXIO - Fail | |
532 | **/ | |
dea3101e | 533 | static int |
2e0fef85 JS |
534 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
535 | struct serv_parm *sp) | |
dea3101e | 536 | { |
2e0fef85 JS |
537 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
538 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
539 | LPFC_MBOXQ_t *mbox; |
540 | int rc; | |
541 | ||
2e0fef85 JS |
542 | spin_lock_irq(shost->host_lock); |
543 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
544 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
545 | |
546 | phba->fc_edtov = FF_DEF_EDTOV; | |
547 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 548 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 549 | sizeof(vport->fc_portname)); |
dea3101e JB |
550 | if (rc >= 0) { |
551 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
552 | spin_lock_irq(shost->host_lock); |
553 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
554 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
555 | |
556 | /* | |
557 | * N_Port ID cannot be 0, set our to LocalID the other | |
558 | * side will be RemoteID. | |
559 | */ | |
560 | ||
561 | /* not equal */ | |
562 | if (rc) | |
2e0fef85 | 563 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
564 | |
565 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
566 | if (!mbox) | |
567 | goto fail; | |
568 | ||
569 | lpfc_config_link(phba, mbox); | |
570 | ||
571 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 572 | mbox->vport = vport; |
0b727fea | 573 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
574 | if (rc == MBX_NOT_FINISHED) { |
575 | mempool_free(mbox, phba->mbox_mem_pool); | |
576 | goto fail; | |
577 | } | |
e47c9093 JS |
578 | /* Decrement ndlp reference count indicating that ndlp can be |
579 | * safely released when other references to it are done. | |
580 | */ | |
329f9bc7 | 581 | lpfc_nlp_put(ndlp); |
dea3101e | 582 | |
2e0fef85 | 583 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
584 | if (!ndlp) { |
585 | /* | |
586 | * Cannot find existing Fabric ndlp, so allocate a | |
587 | * new one | |
588 | */ | |
589 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
590 | if (!ndlp) | |
591 | goto fail; | |
2e0fef85 | 592 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
593 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
594 | ndlp = lpfc_enable_node(vport, ndlp, | |
595 | NLP_STE_UNUSED_NODE); | |
596 | if(!ndlp) | |
597 | goto fail; | |
dea3101e JB |
598 | } |
599 | ||
600 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 601 | sizeof(struct lpfc_name)); |
dea3101e | 602 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 603 | sizeof(struct lpfc_name)); |
e47c9093 | 604 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
605 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
606 | spin_lock_irq(shost->host_lock); | |
dea3101e | 607 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 608 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
609 | } else |
610 | /* This side will wait for the PLOGI, decrement ndlp reference | |
611 | * count indicating that ndlp can be released when other | |
612 | * references to it are done. | |
613 | */ | |
329f9bc7 | 614 | lpfc_nlp_put(ndlp); |
dea3101e | 615 | |
09372820 JS |
616 | /* If we are pt2pt with another NPort, force NPIV off! */ |
617 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
618 | ||
2e0fef85 JS |
619 | spin_lock_irq(shost->host_lock); |
620 | vport->fc_flag |= FC_PT2PT; | |
621 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
622 | |
623 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 624 | lpfc_disc_start(vport); |
dea3101e | 625 | return 0; |
92d7f7b0 | 626 | fail: |
dea3101e JB |
627 | return -ENXIO; |
628 | } | |
629 | ||
e59058c4 | 630 | /** |
3621a710 | 631 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
632 | * @phba: pointer to lpfc hba data structure. |
633 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
634 | * @rspiocb: pointer to lpfc response iocb data structure. | |
635 | * | |
636 | * This routine is the top-level completion callback function for issuing | |
637 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
638 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
639 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
640 | * returning 1), the command IOCB will be released and function returned. | |
641 | * If the retry attempt has been given up (possibly reach the maximum | |
642 | * number of retries), one additional decrement of ndlp reference shall be | |
643 | * invoked before going out after releasing the command IOCB. This will | |
644 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
645 | * invoke one decrement of ndlp reference count). If no error reported in | |
646 | * the IOCB status, the command Port ID field is used to determine whether | |
647 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
648 | * field is assigned, it is a fabric topology; otherwise, it is a | |
649 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
650 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
651 | * specific topology completion conditions. | |
652 | **/ | |
dea3101e | 653 | static void |
329f9bc7 JS |
654 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
655 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 656 | { |
2e0fef85 JS |
657 | struct lpfc_vport *vport = cmdiocb->vport; |
658 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
659 | IOCB_t *irsp = &rspiocb->iocb; |
660 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
661 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
662 | struct serv_parm *sp; | |
663 | int rc; | |
664 | ||
665 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 666 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
667 | /* One additional decrement on node reference count to |
668 | * trigger the release of the node | |
669 | */ | |
329f9bc7 | 670 | lpfc_nlp_put(ndlp); |
dea3101e JB |
671 | goto out; |
672 | } | |
673 | ||
858c9f6c JS |
674 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
675 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
676 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
677 | vport->port_state); | |
678 | ||
dea3101e JB |
679 | if (irsp->ulpStatus) { |
680 | /* Check for retry */ | |
2e0fef85 | 681 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 682 | goto out; |
2e0fef85 | 683 | |
dea3101e | 684 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
685 | spin_lock_irq(shost->host_lock); |
686 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
687 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 688 | |
329f9bc7 | 689 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
690 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
691 | * alpa map would take too long otherwise. | |
692 | */ | |
693 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 694 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
dea3101e JB |
695 | } |
696 | ||
697 | /* FLOGI failure */ | |
e8b62011 JS |
698 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
699 | "0100 FLOGI failure Data: x%x x%x " | |
700 | "x%x\n", | |
701 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
702 | irsp->ulpTimeout); | |
dea3101e JB |
703 | goto flogifail; |
704 | } | |
705 | ||
706 | /* | |
707 | * The FLogI succeeded. Sync the data for the CPU before | |
708 | * accessing it. | |
709 | */ | |
710 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
711 | ||
712 | sp = prsp->virt + sizeof(uint32_t); | |
713 | ||
714 | /* FLOGI completes successfully */ | |
e8b62011 JS |
715 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
716 | "0101 FLOGI completes sucessfully " | |
717 | "Data: x%x x%x x%x x%x\n", | |
718 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
719 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 720 | |
2e0fef85 | 721 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
722 | /* |
723 | * If Common Service Parameters indicate Nport | |
724 | * we are point to point, if Fport we are Fabric. | |
725 | */ | |
726 | if (sp->cmn.fPort) | |
2e0fef85 | 727 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
dea3101e | 728 | else |
2e0fef85 | 729 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dea3101e JB |
730 | |
731 | if (!rc) | |
732 | goto out; | |
733 | } | |
734 | ||
735 | flogifail: | |
329f9bc7 | 736 | lpfc_nlp_put(ndlp); |
dea3101e | 737 | |
858c9f6c | 738 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 739 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 740 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
741 | |
742 | /* Start discovery */ | |
2e0fef85 | 743 | lpfc_disc_start(vport); |
87af33fe JS |
744 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
745 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
746 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
747 | (phba->link_state != LPFC_CLEAR_LA)) { | |
748 | /* If FLOGI failed enable link interrupt. */ | |
749 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 750 | } |
dea3101e JB |
751 | out: |
752 | lpfc_els_free_iocb(phba, cmdiocb); | |
753 | } | |
754 | ||
e59058c4 | 755 | /** |
3621a710 | 756 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
757 | * @vport: pointer to a host virtual N_Port data structure. |
758 | * @ndlp: pointer to a node-list data structure. | |
759 | * @retry: number of retries to the command IOCB. | |
760 | * | |
761 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
762 | * for a @vport. The initiator service parameters are put into the payload | |
763 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
764 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
765 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
766 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
767 | * | |
768 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
769 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
770 | * will be stored into the context1 field of the IOCB for the completion | |
771 | * callback function to the FLOGI ELS command. | |
772 | * | |
773 | * Return code | |
774 | * 0 - successfully issued flogi iocb for @vport | |
775 | * 1 - failed to issue flogi iocb for @vport | |
776 | **/ | |
dea3101e | 777 | static int |
2e0fef85 | 778 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
779 | uint8_t retry) |
780 | { | |
2e0fef85 | 781 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
782 | struct serv_parm *sp; |
783 | IOCB_t *icmd; | |
784 | struct lpfc_iocbq *elsiocb; | |
785 | struct lpfc_sli_ring *pring; | |
786 | uint8_t *pcmd; | |
787 | uint16_t cmdsize; | |
788 | uint32_t tmo; | |
789 | int rc; | |
790 | ||
791 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
792 | ||
92d7f7b0 | 793 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
794 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
795 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 796 | |
488d1469 | 797 | if (!elsiocb) |
c9f8735b | 798 | return 1; |
dea3101e JB |
799 | |
800 | icmd = &elsiocb->iocb; | |
801 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
802 | ||
803 | /* For FLOGI request, remainder of payload is service parameters */ | |
804 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
805 | pcmd += sizeof(uint32_t); |
806 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
807 | sp = (struct serv_parm *) pcmd; |
808 | ||
809 | /* Setup CSPs accordingly for Fabric */ | |
810 | sp->cmn.e_d_tov = 0; | |
811 | sp->cmn.w2.r_a_tov = 0; | |
812 | sp->cls1.classValid = 0; | |
813 | sp->cls2.seqDelivery = 1; | |
814 | sp->cls3.seqDelivery = 1; | |
815 | if (sp->cmn.fcphLow < FC_PH3) | |
816 | sp->cmn.fcphLow = FC_PH3; | |
817 | if (sp->cmn.fcphHigh < FC_PH3) | |
818 | sp->cmn.fcphHigh = FC_PH3; | |
819 | ||
92d7f7b0 JS |
820 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
821 | sp->cmn.request_multiple_Nport = 1; | |
822 | ||
823 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ | |
824 | icmd->ulpCt_h = 1; | |
825 | icmd->ulpCt_l = 0; | |
826 | } | |
827 | ||
858c9f6c JS |
828 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
829 | icmd->un.elsreq64.myID = 0; | |
830 | icmd->un.elsreq64.fl = 1; | |
831 | } | |
832 | ||
dea3101e JB |
833 | tmo = phba->fc_ratov; |
834 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 835 | lpfc_set_disctmo(vport); |
dea3101e JB |
836 | phba->fc_ratov = tmo; |
837 | ||
838 | phba->fc_stat.elsXmitFLOGI++; | |
839 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
840 | |
841 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
842 | "Issue FLOGI: opt:x%x", | |
843 | phba->sli3_options, 0, 0); | |
844 | ||
92d7f7b0 | 845 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
846 | if (rc == IOCB_ERROR) { |
847 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 848 | return 1; |
dea3101e | 849 | } |
c9f8735b | 850 | return 0; |
dea3101e JB |
851 | } |
852 | ||
e59058c4 | 853 | /** |
3621a710 | 854 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
855 | * @phba: pointer to lpfc hba data structure. |
856 | * | |
857 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
858 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
859 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
860 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
861 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
862 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
863 | * | |
864 | * Return code | |
865 | * 0 - Sucessfully issued abort iocb on all outstanding flogis (Always 0) | |
866 | **/ | |
dea3101e | 867 | int |
2e0fef85 | 868 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
869 | { |
870 | struct lpfc_sli_ring *pring; | |
871 | struct lpfc_iocbq *iocb, *next_iocb; | |
872 | struct lpfc_nodelist *ndlp; | |
873 | IOCB_t *icmd; | |
874 | ||
875 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
876 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
877 | "0201 Abort outstanding I/O on NPort x%x\n", |
878 | Fabric_DID); | |
dea3101e JB |
879 | |
880 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
881 | ||
882 | /* | |
883 | * Check the txcmplq for an iocb that matches the nport the driver is | |
884 | * searching for. | |
885 | */ | |
2e0fef85 | 886 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
887 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
888 | icmd = &iocb->iocb; | |
2e0fef85 JS |
889 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
890 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 891 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
892 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
893 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 894 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
895 | } |
896 | } | |
2e0fef85 | 897 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
898 | |
899 | return 0; | |
900 | } | |
901 | ||
e59058c4 | 902 | /** |
3621a710 | 903 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
904 | * @vport: pointer to a host virtual N_Port data structure. |
905 | * | |
906 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
907 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
908 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
909 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
910 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
911 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
912 | * @vport. | |
913 | * | |
914 | * Return code | |
915 | * 0 - failed to issue initial flogi for @vport | |
916 | * 1 - successfully issued initial flogi for @vport | |
917 | **/ | |
dea3101e | 918 | int |
2e0fef85 | 919 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 920 | { |
2e0fef85 | 921 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
922 | struct lpfc_nodelist *ndlp; |
923 | ||
98c9ea5c JS |
924 | vport->port_state = LPFC_FLOGI; |
925 | lpfc_set_disctmo(vport); | |
926 | ||
c9f8735b | 927 | /* First look for the Fabric ndlp */ |
2e0fef85 | 928 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 929 | if (!ndlp) { |
dea3101e | 930 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
931 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
932 | if (!ndlp) | |
933 | return 0; | |
2e0fef85 | 934 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
e47c9093 JS |
935 | /* Put ndlp onto node list */ |
936 | lpfc_enqueue_node(vport, ndlp); | |
937 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
938 | /* re-setup ndlp without removing from node list */ | |
939 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
940 | if (!ndlp) | |
941 | return 0; | |
dea3101e | 942 | } |
87af33fe | 943 | |
e47c9093 | 944 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) |
fa4066b6 JS |
945 | /* This decrement of reference count to node shall kick off |
946 | * the release of the node. | |
947 | */ | |
329f9bc7 | 948 | lpfc_nlp_put(ndlp); |
e47c9093 | 949 | |
c9f8735b | 950 | return 1; |
dea3101e JB |
951 | } |
952 | ||
e59058c4 | 953 | /** |
3621a710 | 954 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
955 | * @vport: pointer to a host virtual N_Port data structure. |
956 | * | |
957 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
958 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
959 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
960 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
961 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
962 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
963 | * @vport. | |
964 | * | |
965 | * Return code | |
966 | * 0 - failed to issue initial fdisc for @vport | |
967 | * 1 - successfully issued initial fdisc for @vport | |
968 | **/ | |
92d7f7b0 JS |
969 | int |
970 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
971 | { | |
972 | struct lpfc_hba *phba = vport->phba; | |
973 | struct lpfc_nodelist *ndlp; | |
974 | ||
975 | /* First look for the Fabric ndlp */ | |
976 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
977 | if (!ndlp) { | |
978 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
979 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
980 | if (!ndlp) | |
981 | return 0; | |
982 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
983 | /* Put ndlp onto node list */ |
984 | lpfc_enqueue_node(vport, ndlp); | |
985 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
986 | /* re-setup ndlp without removing from node list */ | |
987 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
988 | if (!ndlp) | |
989 | return 0; | |
92d7f7b0 | 990 | } |
e47c9093 | 991 | |
92d7f7b0 | 992 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
993 | /* decrement node reference count to trigger the release of |
994 | * the node. | |
995 | */ | |
92d7f7b0 | 996 | lpfc_nlp_put(ndlp); |
fa4066b6 | 997 | return 0; |
92d7f7b0 JS |
998 | } |
999 | return 1; | |
1000 | } | |
87af33fe | 1001 | |
e59058c4 | 1002 | /** |
3621a710 | 1003 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1004 | * @vport: pointer to a host virtual N_Port data structure. |
1005 | * | |
1006 | * This routine checks whether there are more remaining Port Logins | |
1007 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1008 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1009 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1010 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1011 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1012 | **/ | |
87af33fe | 1013 | void |
2e0fef85 | 1014 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1015 | { |
1016 | int sentplogi; | |
1017 | ||
2e0fef85 JS |
1018 | if (vport->num_disc_nodes) |
1019 | vport->num_disc_nodes--; | |
dea3101e JB |
1020 | |
1021 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1022 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1023 | "0232 Continue discovery with %d PLOGIs to go " | |
1024 | "Data: x%x x%x x%x\n", | |
1025 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1026 | vport->fc_flag, vport->port_state); | |
dea3101e | 1027 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1028 | if (vport->fc_flag & FC_NLP_MORE) |
1029 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1030 | sentplogi = lpfc_els_disc_plogi(vport); | |
1031 | ||
dea3101e JB |
1032 | return; |
1033 | } | |
1034 | ||
e59058c4 | 1035 | /** |
3621a710 | 1036 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1037 | * @phba: pointer to lpfc hba data structure. |
1038 | * @prsp: pointer to response IOCB payload. | |
1039 | * @ndlp: pointer to a node-list data structure. | |
1040 | * | |
1041 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1042 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1043 | * The following cases are considered N_Port confirmed: | |
1044 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1045 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1046 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1047 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1048 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1049 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1050 | * on that node to release the RPI associated with the node; 2) if there is | |
1051 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1052 | * into, a new node shall be allocated (or activated). In either case, the | |
1053 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1054 | * be released and the new_ndlp shall be put on to the vport node list and | |
1055 | * its pointer returned as the confirmed node. | |
1056 | * | |
1057 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1058 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1059 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1060 | * into an inactive state on the vport node list and the vport node list | |
1061 | * management algorithm does not allow two node with a same DID. | |
1062 | * | |
1063 | * Return code | |
1064 | * pointer to the PLOGI N_Port @ndlp | |
1065 | **/ | |
488d1469 | 1066 | static struct lpfc_nodelist * |
92d7f7b0 | 1067 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1068 | struct lpfc_nodelist *ndlp) |
1069 | { | |
2e0fef85 | 1070 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1071 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1072 | struct lpfc_rport_data *rdata; |
1073 | struct fc_rport *rport; | |
488d1469 | 1074 | struct serv_parm *sp; |
92d7f7b0 | 1075 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1076 | uint32_t rc, keepDID = 0; |
488d1469 | 1077 | |
2fb9bd8b JS |
1078 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1079 | * by WWPN. Just return the ndlp that was given to us. | |
1080 | */ | |
1081 | if (ndlp->nlp_type & NLP_FABRIC) | |
1082 | return ndlp; | |
1083 | ||
92d7f7b0 | 1084 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1085 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1086 | |
685f0bf7 | 1087 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1088 | * we have for that ndlp. If not, we have some work to do. |
1089 | */ | |
2e0fef85 | 1090 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1091 | |
e47c9093 | 1092 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1093 | return ndlp; |
488d1469 JS |
1094 | |
1095 | if (!new_ndlp) { | |
2e0fef85 JS |
1096 | rc = memcmp(&ndlp->nlp_portname, name, |
1097 | sizeof(struct lpfc_name)); | |
92795650 JS |
1098 | if (!rc) |
1099 | return ndlp; | |
488d1469 JS |
1100 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1101 | if (!new_ndlp) | |
1102 | return ndlp; | |
2e0fef85 | 1103 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1104 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1105 | rc = memcmp(&ndlp->nlp_portname, name, |
1106 | sizeof(struct lpfc_name)); | |
1107 | if (!rc) | |
1108 | return ndlp; | |
e47c9093 JS |
1109 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1110 | NLP_STE_UNUSED_NODE); | |
1111 | if (!new_ndlp) | |
1112 | return ndlp; | |
58da1ffb JS |
1113 | keepDID = new_ndlp->nlp_DID; |
1114 | } else | |
1115 | keepDID = new_ndlp->nlp_DID; | |
488d1469 | 1116 | |
2e0fef85 | 1117 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1118 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1119 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
0ff10d46 JS |
1120 | |
1121 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1122 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1123 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1124 | ||
e47c9093 | 1125 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1126 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1127 | |
2e0fef85 | 1128 | /* Move this back to NPR state */ |
87af33fe JS |
1129 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1130 | /* The new_ndlp is replacing ndlp totally, so we need | |
1131 | * to put ndlp on UNUSED list and try to free it. | |
1132 | */ | |
0ff10d46 JS |
1133 | |
1134 | /* Fix up the rport accordingly */ | |
1135 | rport = ndlp->rport; | |
1136 | if (rport) { | |
1137 | rdata = rport->dd_data; | |
1138 | if (rdata->pnode == ndlp) { | |
1139 | lpfc_nlp_put(ndlp); | |
1140 | ndlp->rport = NULL; | |
1141 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1142 | new_ndlp->rport = rport; | |
1143 | } | |
1144 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1145 | } | |
58da1ffb JS |
1146 | /* We shall actually free the ndlp with both nlp_DID and |
1147 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1148 | * nodelist never to be used. | |
1149 | */ | |
1150 | if (ndlp->nlp_DID == 0) { | |
1151 | spin_lock_irq(&phba->ndlp_lock); | |
1152 | NLP_SET_FREE_REQ(ndlp); | |
1153 | spin_unlock_irq(&phba->ndlp_lock); | |
1154 | } | |
0ff10d46 | 1155 | |
58da1ffb JS |
1156 | /* Two ndlps cannot have the same did on the nodelist */ |
1157 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1158 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1159 | } |
92795650 | 1160 | else { |
2e0fef85 | 1161 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1162 | /* Two ndlps cannot have the same did */ |
1163 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1164 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
92795650 | 1165 | } |
488d1469 JS |
1166 | return new_ndlp; |
1167 | } | |
1168 | ||
e59058c4 | 1169 | /** |
3621a710 | 1170 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1171 | * @vport: pointer to a host virtual N_Port data structure. |
1172 | * | |
1173 | * This routine checks whether more Registration State Change | |
1174 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1175 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1176 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1177 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1178 | * handling the RSCNs. | |
1179 | **/ | |
87af33fe JS |
1180 | void |
1181 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1182 | { | |
1183 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1184 | ||
1185 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1186 | /* | |
1187 | * Check to see if more RSCNs came in while we were | |
1188 | * processing this one. | |
1189 | */ | |
1190 | if (vport->fc_rscn_id_cnt || | |
1191 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1192 | lpfc_els_handle_rscn(vport); | |
1193 | else { | |
1194 | spin_lock_irq(shost->host_lock); | |
1195 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1196 | spin_unlock_irq(shost->host_lock); | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | ||
e59058c4 | 1201 | /** |
3621a710 | 1202 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1203 | * @phba: pointer to lpfc hba data structure. |
1204 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1205 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1206 | * | |
1207 | * This routine is the completion callback function for issuing the Port | |
1208 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1209 | * ndlp on the vport node list that matches the remote node ID from the | |
1210 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1211 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1212 | * checked for error conditons. If there is error status reported, PLOGI | |
1213 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1214 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1215 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1216 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1217 | * there are additional N_Port nodes with the vport that need to perform | |
1218 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1219 | * PLOGIs. | |
1220 | **/ | |
dea3101e | 1221 | static void |
2e0fef85 JS |
1222 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1223 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1224 | { |
2e0fef85 JS |
1225 | struct lpfc_vport *vport = cmdiocb->vport; |
1226 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1227 | IOCB_t *irsp; |
dea3101e | 1228 | struct lpfc_nodelist *ndlp; |
92795650 | 1229 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1230 | int disc, rc, did, type; |
1231 | ||
dea3101e JB |
1232 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1233 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1234 | ||
1235 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1236 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1237 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1238 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1239 | irsp->un.elsreq64.remoteID); | |
1240 | ||
2e0fef85 | 1241 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1242 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1243 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1244 | "0136 PLOGI completes to NPort x%x " | |
1245 | "with no ndlp. Data: x%x x%x x%x\n", | |
1246 | irsp->un.elsreq64.remoteID, | |
1247 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1248 | irsp->ulpIoTag); | |
488d1469 | 1249 | goto out; |
ed957684 | 1250 | } |
dea3101e JB |
1251 | |
1252 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1253 | * is being used during discovery. | |
1254 | */ | |
2e0fef85 | 1255 | spin_lock_irq(shost->host_lock); |
dea3101e | 1256 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1257 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1258 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1259 | rc = 0; |
1260 | ||
1261 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1262 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1263 | "0102 PLOGI completes to NPort x%x " | |
1264 | "Data: x%x x%x x%x x%x x%x\n", | |
1265 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1266 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1267 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1268 | if (lpfc_els_chk_latt(vport)) { |
1269 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1270 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1271 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1272 | goto out; |
1273 | } | |
1274 | ||
1275 | /* ndlp could be freed in DSM, save these values now */ | |
1276 | type = ndlp->nlp_type; | |
1277 | did = ndlp->nlp_DID; | |
1278 | ||
1279 | if (irsp->ulpStatus) { | |
1280 | /* Check for retry */ | |
1281 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1282 | /* ELS command is being retried */ | |
1283 | if (disc) { | |
2e0fef85 | 1284 | spin_lock_irq(shost->host_lock); |
dea3101e | 1285 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1286 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1287 | } |
1288 | goto out; | |
1289 | } | |
dea3101e JB |
1290 | /* PLOGI failed */ |
1291 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1292 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1293 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1294 | else |
2e0fef85 | 1295 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1296 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1297 | } else { |
1298 | /* Good status, call state machine */ | |
92795650 | 1299 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1300 | cmdiocb->context2)->list.next, |
1301 | struct lpfc_dmabuf, list); | |
1302 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1303 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1304 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1305 | } |
1306 | ||
2e0fef85 | 1307 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1308 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1309 | lpfc_more_plogi(vport); |
dea3101e | 1310 | |
2e0fef85 JS |
1311 | if (vport->num_disc_nodes == 0) { |
1312 | spin_lock_irq(shost->host_lock); | |
1313 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1314 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1315 | |
2e0fef85 | 1316 | lpfc_can_disctmo(vport); |
87af33fe | 1317 | lpfc_end_rscn(vport); |
dea3101e JB |
1318 | } |
1319 | } | |
1320 | ||
1321 | out: | |
1322 | lpfc_els_free_iocb(phba, cmdiocb); | |
1323 | return; | |
1324 | } | |
1325 | ||
e59058c4 | 1326 | /** |
3621a710 | 1327 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1328 | * @vport: pointer to a host virtual N_Port data structure. |
1329 | * @did: destination port identifier. | |
1330 | * @retry: number of retries to the command IOCB. | |
1331 | * | |
1332 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1333 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1334 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1335 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1336 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1337 | * | |
1338 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1339 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1340 | * will be stored into the context1 field of the IOCB for the completion | |
1341 | * callback function to the PLOGI ELS command. | |
1342 | * | |
1343 | * Return code | |
1344 | * 0 - Successfully issued a plogi for @vport | |
1345 | * 1 - failed to issue a plogi for @vport | |
1346 | **/ | |
dea3101e | 1347 | int |
2e0fef85 | 1348 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1349 | { |
2e0fef85 | 1350 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1351 | struct serv_parm *sp; |
1352 | IOCB_t *icmd; | |
98c9ea5c | 1353 | struct lpfc_nodelist *ndlp; |
dea3101e | 1354 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1355 | struct lpfc_sli *psli; |
1356 | uint8_t *pcmd; | |
1357 | uint16_t cmdsize; | |
92d7f7b0 | 1358 | int ret; |
dea3101e JB |
1359 | |
1360 | psli = &phba->sli; | |
dea3101e | 1361 | |
98c9ea5c | 1362 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1363 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1364 | ndlp = NULL; | |
98c9ea5c | 1365 | |
e47c9093 | 1366 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1367 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1368 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1369 | ELS_CMD_PLOGI); |
c9f8735b JW |
1370 | if (!elsiocb) |
1371 | return 1; | |
dea3101e JB |
1372 | |
1373 | icmd = &elsiocb->iocb; | |
1374 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1375 | ||
1376 | /* For PLOGI request, remainder of payload is service parameters */ | |
1377 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1378 | pcmd += sizeof(uint32_t); |
1379 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1380 | sp = (struct serv_parm *) pcmd; |
1381 | ||
1382 | if (sp->cmn.fcphLow < FC_PH_4_3) | |
1383 | sp->cmn.fcphLow = FC_PH_4_3; | |
1384 | ||
1385 | if (sp->cmn.fcphHigh < FC_PH3) | |
1386 | sp->cmn.fcphHigh = FC_PH3; | |
1387 | ||
858c9f6c JS |
1388 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1389 | "Issue PLOGI: did:x%x", | |
1390 | did, 0, 0); | |
1391 | ||
dea3101e JB |
1392 | phba->fc_stat.elsXmitPLOGI++; |
1393 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1394 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1395 | |
1396 | if (ret == IOCB_ERROR) { | |
dea3101e | 1397 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1398 | return 1; |
dea3101e | 1399 | } |
c9f8735b | 1400 | return 0; |
dea3101e JB |
1401 | } |
1402 | ||
e59058c4 | 1403 | /** |
3621a710 | 1404 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1405 | * @phba: pointer to lpfc hba data structure. |
1406 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1407 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1408 | * | |
1409 | * This routine is the completion callback function for a Process Login | |
1410 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1411 | * status. If there is error status reported, PRLI retry shall be attempted | |
1412 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1413 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1414 | * ndlp to mark the PRLI completion. | |
1415 | **/ | |
dea3101e | 1416 | static void |
2e0fef85 JS |
1417 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1418 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1419 | { |
2e0fef85 JS |
1420 | struct lpfc_vport *vport = cmdiocb->vport; |
1421 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1422 | IOCB_t *irsp; |
1423 | struct lpfc_sli *psli; | |
1424 | struct lpfc_nodelist *ndlp; | |
1425 | ||
1426 | psli = &phba->sli; | |
1427 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1428 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1429 | ||
1430 | irsp = &(rspiocb->iocb); | |
1431 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1432 | spin_lock_irq(shost->host_lock); |
dea3101e | 1433 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1434 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1435 | |
858c9f6c JS |
1436 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1437 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1438 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1439 | ndlp->nlp_DID); | |
dea3101e | 1440 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1441 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1442 | "0103 PRLI completes to NPort x%x " | |
1443 | "Data: x%x x%x x%x x%x\n", | |
1444 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1445 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1446 | |
2e0fef85 | 1447 | vport->fc_prli_sent--; |
dea3101e | 1448 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1449 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1450 | goto out; |
1451 | ||
1452 | if (irsp->ulpStatus) { | |
1453 | /* Check for retry */ | |
1454 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1455 | /* ELS command is being retried */ | |
1456 | goto out; | |
1457 | } | |
1458 | /* PRLI failed */ | |
1459 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1460 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1461 | goto out; |
e47c9093 | 1462 | else |
2e0fef85 | 1463 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1464 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1465 | } else |
dea3101e | 1466 | /* Good status, call state machine */ |
2e0fef85 | 1467 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1468 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1469 | out: |
1470 | lpfc_els_free_iocb(phba, cmdiocb); | |
1471 | return; | |
1472 | } | |
1473 | ||
e59058c4 | 1474 | /** |
3621a710 | 1475 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1476 | * @vport: pointer to a host virtual N_Port data structure. |
1477 | * @ndlp: pointer to a node-list data structure. | |
1478 | * @retry: number of retries to the command IOCB. | |
1479 | * | |
1480 | * This routine issues a Process Login (PRLI) ELS command for the | |
1481 | * @vport. The PRLI service parameters are set up in the payload of the | |
1482 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1483 | * is put to the IOCB completion callback func field before invoking the | |
1484 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1485 | * | |
1486 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1487 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1488 | * will be stored into the context1 field of the IOCB for the completion | |
1489 | * callback function to the PRLI ELS command. | |
1490 | * | |
1491 | * Return code | |
1492 | * 0 - successfully issued prli iocb command for @vport | |
1493 | * 1 - failed to issue prli iocb command for @vport | |
1494 | **/ | |
dea3101e | 1495 | int |
2e0fef85 | 1496 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1497 | uint8_t retry) |
1498 | { | |
2e0fef85 JS |
1499 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1500 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1501 | PRLI *npr; |
1502 | IOCB_t *icmd; | |
1503 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1504 | uint8_t *pcmd; |
1505 | uint16_t cmdsize; | |
1506 | ||
92d7f7b0 | 1507 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1508 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1509 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1510 | if (!elsiocb) |
c9f8735b | 1511 | return 1; |
dea3101e JB |
1512 | |
1513 | icmd = &elsiocb->iocb; | |
1514 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1515 | ||
1516 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1517 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1518 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1519 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1520 | |
1521 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1522 | npr = (PRLI *) pcmd; | |
1523 | /* | |
1524 | * If our firmware version is 3.20 or later, | |
1525 | * set the following bits for FC-TAPE support. | |
1526 | */ | |
1527 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1528 | npr->ConfmComplAllowed = 1; | |
1529 | npr->Retry = 1; | |
1530 | npr->TaskRetryIdReq = 1; | |
1531 | } | |
1532 | npr->estabImagePair = 1; | |
1533 | npr->readXferRdyDis = 1; | |
1534 | ||
1535 | /* For FCP support */ | |
1536 | npr->prliType = PRLI_FCP_TYPE; | |
1537 | npr->initiatorFunc = 1; | |
1538 | ||
858c9f6c JS |
1539 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1540 | "Issue PRLI: did:x%x", | |
1541 | ndlp->nlp_DID, 0, 0); | |
1542 | ||
dea3101e JB |
1543 | phba->fc_stat.elsXmitPRLI++; |
1544 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1545 | spin_lock_irq(shost->host_lock); |
dea3101e | 1546 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1547 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1548 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1549 | IOCB_ERROR) { | |
2e0fef85 | 1550 | spin_lock_irq(shost->host_lock); |
dea3101e | 1551 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1552 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1553 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1554 | return 1; |
dea3101e | 1555 | } |
2e0fef85 | 1556 | vport->fc_prli_sent++; |
c9f8735b | 1557 | return 0; |
dea3101e JB |
1558 | } |
1559 | ||
90160e01 | 1560 | /** |
3621a710 | 1561 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1562 | * @vport: pointer to a host virtual N_Port data structure. |
1563 | * | |
1564 | * This routine performs Registration State Change Notification (RSCN) | |
1565 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1566 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1567 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1568 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1569 | * invoked to check and handle possible more RSCN came in during the period | |
1570 | * of processing the current ones. | |
1571 | **/ | |
1572 | static void | |
1573 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1574 | { | |
1575 | lpfc_can_disctmo(vport); | |
1576 | ||
1577 | /* RSCN discovery */ | |
1578 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1579 | if (vport->fc_npr_cnt) | |
1580 | if (lpfc_els_disc_plogi(vport)) | |
1581 | return; | |
1582 | ||
1583 | lpfc_end_rscn(vport); | |
1584 | } | |
1585 | ||
1586 | /** | |
3621a710 | 1587 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1588 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
1589 | * | |
1590 | * This function is called when the final ADISC is completed during discovery. | |
1591 | * This function handles clearing link attention or issuing reg_vpi depending | |
1592 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1593 | * discovery. | |
1594 | * This function is called with no locks held. | |
1595 | **/ | |
1596 | static void | |
1597 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1598 | { | |
1599 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1600 | struct lpfc_hba *phba = vport->phba; | |
1601 | ||
1602 | /* | |
1603 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1604 | * and continue discovery. | |
1605 | */ | |
1606 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
1607 | !(vport->fc_flag & FC_RSCN_MODE)) { | |
1608 | lpfc_issue_reg_vpi(phba, vport); | |
1609 | return; | |
1610 | } | |
1611 | /* | |
1612 | * For SLI2, we need to set port_state to READY | |
1613 | * and continue discovery. | |
1614 | */ | |
1615 | if (vport->port_state < LPFC_VPORT_READY) { | |
1616 | /* If we get here, there is nothing to ADISC */ | |
1617 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1618 | lpfc_issue_clear_la(phba, vport); | |
1619 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1620 | vport->num_disc_nodes = 0; | |
1621 | /* go thru NPR list, issue ELS PLOGIs */ | |
1622 | if (vport->fc_npr_cnt) | |
1623 | lpfc_els_disc_plogi(vport); | |
1624 | if (!vport->num_disc_nodes) { | |
1625 | spin_lock_irq(shost->host_lock); | |
1626 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1627 | spin_unlock_irq(shost->host_lock); | |
1628 | lpfc_can_disctmo(vport); | |
1629 | lpfc_end_rscn(vport); | |
1630 | } | |
1631 | } | |
1632 | vport->port_state = LPFC_VPORT_READY; | |
1633 | } else | |
1634 | lpfc_rscn_disc(vport); | |
1635 | } | |
1636 | ||
e59058c4 | 1637 | /** |
3621a710 | 1638 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
1639 | * @vport: pointer to a host virtual N_Port data structure. |
1640 | * | |
1641 | * This routine determines whether there are more ndlps on a @vport | |
1642 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1643 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1644 | * remaining nodes which need to have ADISC sent. | |
1645 | **/ | |
0ff10d46 | 1646 | void |
2e0fef85 | 1647 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
1648 | { |
1649 | int sentadisc; | |
1650 | ||
2e0fef85 JS |
1651 | if (vport->num_disc_nodes) |
1652 | vport->num_disc_nodes--; | |
dea3101e | 1653 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
1654 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1655 | "0210 Continue discovery with %d ADISCs to go " | |
1656 | "Data: x%x x%x x%x\n", | |
1657 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
1658 | vport->fc_flag, vport->port_state); | |
dea3101e | 1659 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
1660 | if (vport->fc_flag & FC_NLP_MORE) { |
1661 | lpfc_set_disctmo(vport); | |
1662 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
1663 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 1664 | } |
90160e01 JS |
1665 | if (!vport->num_disc_nodes) |
1666 | lpfc_adisc_done(vport); | |
dea3101e JB |
1667 | return; |
1668 | } | |
1669 | ||
e59058c4 | 1670 | /** |
3621a710 | 1671 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
1672 | * @phba: pointer to lpfc hba data structure. |
1673 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1674 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1675 | * | |
1676 | * This routine is the completion function for issuing the Address Discover | |
1677 | * (ADISC) command. It first checks to see whether link went down during | |
1678 | * the discovery process. If so, the node will be marked as node port | |
1679 | * recovery for issuing discover IOCB by the link attention handler and | |
1680 | * exit. Otherwise, the response status is checked. If error was reported | |
1681 | * in the response status, the ADISC command shall be retried by invoking | |
1682 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
1683 | * the response status, the state machine is invoked to set transition | |
1684 | * with respect to NLP_EVT_CMPL_ADISC event. | |
1685 | **/ | |
dea3101e | 1686 | static void |
2e0fef85 JS |
1687 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1688 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1689 | { |
2e0fef85 JS |
1690 | struct lpfc_vport *vport = cmdiocb->vport; |
1691 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1692 | IOCB_t *irsp; |
dea3101e | 1693 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 1694 | int disc; |
dea3101e JB |
1695 | |
1696 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1697 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1698 | ||
1699 | irsp = &(rspiocb->iocb); | |
1700 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 1701 | |
858c9f6c JS |
1702 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1703 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
1704 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1705 | ndlp->nlp_DID); | |
1706 | ||
dea3101e JB |
1707 | /* Since ndlp can be freed in the disc state machine, note if this node |
1708 | * is being used during discovery. | |
1709 | */ | |
2e0fef85 | 1710 | spin_lock_irq(shost->host_lock); |
dea3101e | 1711 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 1712 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 1713 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1714 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
1715 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1716 | "0104 ADISC completes to NPort x%x " | |
1717 | "Data: x%x x%x x%x x%x x%x\n", | |
1718 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1719 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1720 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1721 | if (lpfc_els_chk_latt(vport)) { |
1722 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1723 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1724 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1725 | goto out; |
1726 | } | |
1727 | ||
1728 | if (irsp->ulpStatus) { | |
1729 | /* Check for retry */ | |
1730 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1731 | /* ELS command is being retried */ | |
1732 | if (disc) { | |
2e0fef85 | 1733 | spin_lock_irq(shost->host_lock); |
dea3101e | 1734 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
1735 | spin_unlock_irq(shost->host_lock); |
1736 | lpfc_set_disctmo(vport); | |
dea3101e JB |
1737 | } |
1738 | goto out; | |
1739 | } | |
1740 | /* ADISC failed */ | |
1741 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1742 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 1743 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 1744 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 1745 | } else |
dea3101e | 1746 | /* Good status, call state machine */ |
2e0fef85 | 1747 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 1748 | NLP_EVT_CMPL_ADISC); |
dea3101e | 1749 | |
90160e01 JS |
1750 | /* Check to see if there are more ADISCs to be sent */ |
1751 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 1752 | lpfc_more_adisc(vport); |
dea3101e JB |
1753 | out: |
1754 | lpfc_els_free_iocb(phba, cmdiocb); | |
1755 | return; | |
1756 | } | |
1757 | ||
e59058c4 | 1758 | /** |
3621a710 | 1759 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
1760 | * @vport: pointer to a virtual N_Port data structure. |
1761 | * @ndlp: pointer to a node-list data structure. | |
1762 | * @retry: number of retries to the command IOCB. | |
1763 | * | |
1764 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
1765 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
1766 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
1767 | * to issue the ADISC ELS command. | |
1768 | * | |
1769 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1770 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1771 | * will be stored into the context1 field of the IOCB for the completion | |
1772 | * callback function to the ADISC ELS command. | |
1773 | * | |
1774 | * Return code | |
1775 | * 0 - successfully issued adisc | |
1776 | * 1 - failed to issue adisc | |
1777 | **/ | |
dea3101e | 1778 | int |
2e0fef85 | 1779 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1780 | uint8_t retry) |
1781 | { | |
2e0fef85 JS |
1782 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1783 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1784 | ADISC *ap; |
1785 | IOCB_t *icmd; | |
1786 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1787 | uint8_t *pcmd; |
1788 | uint16_t cmdsize; | |
1789 | ||
92d7f7b0 | 1790 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
1791 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1792 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 1793 | if (!elsiocb) |
c9f8735b | 1794 | return 1; |
dea3101e JB |
1795 | |
1796 | icmd = &elsiocb->iocb; | |
1797 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1798 | ||
1799 | /* For ADISC request, remainder of payload is service parameters */ | |
1800 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 1801 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1802 | |
1803 | /* Fill in ADISC payload */ | |
1804 | ap = (ADISC *) pcmd; | |
1805 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
1806 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
1807 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 1808 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 1809 | |
858c9f6c JS |
1810 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1811 | "Issue ADISC: did:x%x", | |
1812 | ndlp->nlp_DID, 0, 0); | |
1813 | ||
dea3101e JB |
1814 | phba->fc_stat.elsXmitADISC++; |
1815 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 1816 | spin_lock_irq(shost->host_lock); |
dea3101e | 1817 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 1818 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1819 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1820 | IOCB_ERROR) { | |
2e0fef85 | 1821 | spin_lock_irq(shost->host_lock); |
dea3101e | 1822 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 1823 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1824 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1825 | return 1; |
dea3101e | 1826 | } |
c9f8735b | 1827 | return 0; |
dea3101e JB |
1828 | } |
1829 | ||
e59058c4 | 1830 | /** |
3621a710 | 1831 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
1832 | * @phba: pointer to lpfc hba data structure. |
1833 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1834 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1835 | * | |
1836 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
1837 | * command. If no error status was reported from the LOGO response, the | |
1838 | * state machine of the associated ndlp shall be invoked for transition with | |
1839 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
1840 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
1841 | **/ | |
dea3101e | 1842 | static void |
2e0fef85 JS |
1843 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1844 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1845 | { |
2e0fef85 JS |
1846 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
1847 | struct lpfc_vport *vport = ndlp->vport; | |
1848 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1849 | IOCB_t *irsp; |
1850 | struct lpfc_sli *psli; | |
dea3101e JB |
1851 | |
1852 | psli = &phba->sli; | |
1853 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1854 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1855 | ||
1856 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 1857 | spin_lock_irq(shost->host_lock); |
dea3101e | 1858 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 1859 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1860 | |
858c9f6c JS |
1861 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1862 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
1863 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1864 | ndlp->nlp_DID); | |
dea3101e | 1865 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
1866 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1867 | "0105 LOGO completes to NPort x%x " | |
1868 | "Data: x%x x%x x%x x%x\n", | |
1869 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1870 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1871 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1872 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1873 | goto out; |
1874 | ||
92d7f7b0 JS |
1875 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
1876 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
1877 | * which should abort all outstanding IOs. | |
1878 | */ | |
1879 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
1880 | NLP_EVT_DEVICE_RM); | |
1881 | goto out; | |
1882 | } | |
1883 | ||
dea3101e JB |
1884 | if (irsp->ulpStatus) { |
1885 | /* Check for retry */ | |
2e0fef85 | 1886 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
1887 | /* ELS command is being retried */ |
1888 | goto out; | |
dea3101e JB |
1889 | /* LOGO failed */ |
1890 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
858c9f6c | 1891 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1892 | goto out; |
858c9f6c | 1893 | else |
2e0fef85 | 1894 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1895 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 1896 | } else |
5024ab17 JW |
1897 | /* Good status, call state machine. |
1898 | * This will unregister the rpi if needed. | |
1899 | */ | |
2e0fef85 | 1900 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1901 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
1902 | out: |
1903 | lpfc_els_free_iocb(phba, cmdiocb); | |
1904 | return; | |
1905 | } | |
1906 | ||
e59058c4 | 1907 | /** |
3621a710 | 1908 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
1909 | * @vport: pointer to a virtual N_Port data structure. |
1910 | * @ndlp: pointer to a node-list data structure. | |
1911 | * @retry: number of retries to the command IOCB. | |
1912 | * | |
1913 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
1914 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
1915 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
1916 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
1917 | * | |
1918 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1919 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1920 | * will be stored into the context1 field of the IOCB for the completion | |
1921 | * callback function to the LOGO ELS command. | |
1922 | * | |
1923 | * Return code | |
1924 | * 0 - successfully issued logo | |
1925 | * 1 - failed to issue logo | |
1926 | **/ | |
dea3101e | 1927 | int |
2e0fef85 | 1928 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1929 | uint8_t retry) |
1930 | { | |
2e0fef85 JS |
1931 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1932 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1933 | IOCB_t *icmd; |
1934 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1935 | uint8_t *pcmd; |
1936 | uint16_t cmdsize; | |
92d7f7b0 | 1937 | int rc; |
dea3101e | 1938 | |
98c9ea5c JS |
1939 | spin_lock_irq(shost->host_lock); |
1940 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
1941 | spin_unlock_irq(shost->host_lock); | |
1942 | return 0; | |
1943 | } | |
1944 | spin_unlock_irq(shost->host_lock); | |
1945 | ||
92d7f7b0 | 1946 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
1947 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1948 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 1949 | if (!elsiocb) |
c9f8735b | 1950 | return 1; |
dea3101e JB |
1951 | |
1952 | icmd = &elsiocb->iocb; | |
1953 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1954 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 1955 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1956 | |
1957 | /* Fill in LOGO payload */ | |
2e0fef85 | 1958 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
1959 | pcmd += sizeof(uint32_t); |
1960 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 1961 | |
858c9f6c JS |
1962 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1963 | "Issue LOGO: did:x%x", | |
1964 | ndlp->nlp_DID, 0, 0); | |
1965 | ||
dea3101e JB |
1966 | phba->fc_stat.elsXmitLOGO++; |
1967 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 1968 | spin_lock_irq(shost->host_lock); |
dea3101e | 1969 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 1970 | spin_unlock_irq(shost->host_lock); |
3772a991 | 1971 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1972 | |
1973 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 1974 | spin_lock_irq(shost->host_lock); |
dea3101e | 1975 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 1976 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1977 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1978 | return 1; |
dea3101e | 1979 | } |
c9f8735b | 1980 | return 0; |
dea3101e JB |
1981 | } |
1982 | ||
e59058c4 | 1983 | /** |
3621a710 | 1984 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
1985 | * @phba: pointer to lpfc hba data structure. |
1986 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1987 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1988 | * | |
1989 | * This routine is a generic completion callback function for ELS commands. | |
1990 | * Specifically, it is the callback function which does not need to perform | |
1991 | * any command specific operations. It is currently used by the ELS command | |
1992 | * issuing routines for the ELS State Change Request (SCR), | |
1993 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
1994 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
1995 | * certain debug loggings, this callback function simply invokes the | |
1996 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
1997 | * discovery process. | |
1998 | **/ | |
dea3101e | 1999 | static void |
2e0fef85 JS |
2000 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2001 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2002 | { |
2e0fef85 | 2003 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2004 | IOCB_t *irsp; |
2005 | ||
2006 | irsp = &rspiocb->iocb; | |
2007 | ||
858c9f6c JS |
2008 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2009 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2010 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2011 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2012 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2013 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2014 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2015 | irsp->ulpIoTag, irsp->ulpStatus, | |
2016 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2017 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2018 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2019 | lpfc_els_free_iocb(phba, cmdiocb); |
2020 | return; | |
2021 | } | |
2022 | ||
e59058c4 | 2023 | /** |
3621a710 | 2024 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2025 | * @vport: pointer to a host virtual N_Port data structure. |
2026 | * @nportid: N_Port identifier to the remote node. | |
2027 | * @retry: number of retries to the command IOCB. | |
2028 | * | |
2029 | * This routine issues a State Change Request (SCR) to a fabric node | |
2030 | * on a @vport. The remote node @nportid is passed into the function. It | |
2031 | * first search the @vport node list to find the matching ndlp. If no such | |
2032 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2033 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2034 | * routine is invoked to send the SCR IOCB. | |
2035 | * | |
2036 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2037 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2038 | * will be stored into the context1 field of the IOCB for the completion | |
2039 | * callback function to the SCR ELS command. | |
2040 | * | |
2041 | * Return code | |
2042 | * 0 - Successfully issued scr command | |
2043 | * 1 - Failed to issue scr command | |
2044 | **/ | |
dea3101e | 2045 | int |
2e0fef85 | 2046 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2047 | { |
2e0fef85 | 2048 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2049 | IOCB_t *icmd; |
2050 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2051 | struct lpfc_sli *psli; |
2052 | uint8_t *pcmd; | |
2053 | uint16_t cmdsize; | |
2054 | struct lpfc_nodelist *ndlp; | |
2055 | ||
2056 | psli = &phba->sli; | |
92d7f7b0 | 2057 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2058 | |
e47c9093 JS |
2059 | ndlp = lpfc_findnode_did(vport, nportid); |
2060 | if (!ndlp) { | |
2061 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2062 | if (!ndlp) | |
2063 | return 1; | |
2064 | lpfc_nlp_init(vport, ndlp, nportid); | |
2065 | lpfc_enqueue_node(vport, ndlp); | |
2066 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2067 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2068 | if (!ndlp) | |
2069 | return 1; | |
2070 | } | |
2e0fef85 JS |
2071 | |
2072 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2073 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2074 | |
488d1469 | 2075 | if (!elsiocb) { |
fa4066b6 JS |
2076 | /* This will trigger the release of the node just |
2077 | * allocated | |
2078 | */ | |
329f9bc7 | 2079 | lpfc_nlp_put(ndlp); |
c9f8735b | 2080 | return 1; |
dea3101e JB |
2081 | } |
2082 | ||
2083 | icmd = &elsiocb->iocb; | |
2084 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2085 | ||
2086 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2087 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2088 | |
2089 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2090 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2091 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2092 | ||
858c9f6c JS |
2093 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2094 | "Issue SCR: did:x%x", | |
2095 | ndlp->nlp_DID, 0, 0); | |
2096 | ||
dea3101e JB |
2097 | phba->fc_stat.elsXmitSCR++; |
2098 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2099 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2100 | IOCB_ERROR) { | |
fa4066b6 JS |
2101 | /* The additional lpfc_nlp_put will cause the following |
2102 | * lpfc_els_free_iocb routine to trigger the rlease of | |
2103 | * the node. | |
2104 | */ | |
329f9bc7 | 2105 | lpfc_nlp_put(ndlp); |
dea3101e | 2106 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2107 | return 1; |
dea3101e | 2108 | } |
fa4066b6 JS |
2109 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2110 | * trigger the release of node. | |
2111 | */ | |
329f9bc7 | 2112 | lpfc_nlp_put(ndlp); |
c9f8735b | 2113 | return 0; |
dea3101e JB |
2114 | } |
2115 | ||
e59058c4 | 2116 | /** |
3621a710 | 2117 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2118 | * @vport: pointer to a host virtual N_Port data structure. |
2119 | * @nportid: N_Port identifier to the remote node. | |
2120 | * @retry: number of retries to the command IOCB. | |
2121 | * | |
2122 | * This routine issues a Fibre Channel Address Resolution Response | |
2123 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2124 | * is passed into the function. It first search the @vport node list to find | |
2125 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2126 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2127 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2128 | * | |
2129 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2130 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2131 | * will be stored into the context1 field of the IOCB for the completion | |
2132 | * callback function to the PARPR ELS command. | |
2133 | * | |
2134 | * Return code | |
2135 | * 0 - Successfully issued farpr command | |
2136 | * 1 - Failed to issue farpr command | |
2137 | **/ | |
dea3101e | 2138 | static int |
2e0fef85 | 2139 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2140 | { |
2e0fef85 | 2141 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2142 | IOCB_t *icmd; |
2143 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2144 | struct lpfc_sli *psli; |
2145 | FARP *fp; | |
2146 | uint8_t *pcmd; | |
2147 | uint32_t *lp; | |
2148 | uint16_t cmdsize; | |
2149 | struct lpfc_nodelist *ondlp; | |
2150 | struct lpfc_nodelist *ndlp; | |
2151 | ||
2152 | psli = &phba->sli; | |
92d7f7b0 | 2153 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2154 | |
e47c9093 JS |
2155 | ndlp = lpfc_findnode_did(vport, nportid); |
2156 | if (!ndlp) { | |
2157 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2158 | if (!ndlp) | |
2159 | return 1; | |
2160 | lpfc_nlp_init(vport, ndlp, nportid); | |
2161 | lpfc_enqueue_node(vport, ndlp); | |
2162 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2163 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2164 | if (!ndlp) | |
2165 | return 1; | |
2166 | } | |
2e0fef85 JS |
2167 | |
2168 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2169 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2170 | if (!elsiocb) { |
fa4066b6 JS |
2171 | /* This will trigger the release of the node just |
2172 | * allocated | |
2173 | */ | |
329f9bc7 | 2174 | lpfc_nlp_put(ndlp); |
c9f8735b | 2175 | return 1; |
dea3101e JB |
2176 | } |
2177 | ||
2178 | icmd = &elsiocb->iocb; | |
2179 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2180 | ||
2181 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2182 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2183 | |
2184 | /* Fill in FARPR payload */ | |
2185 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2186 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2187 | lp = (uint32_t *) pcmd; |
2188 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2189 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2190 | fp->Rflags = 0; |
2191 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2192 | ||
92d7f7b0 JS |
2193 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2194 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2195 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2196 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2197 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2198 | sizeof(struct lpfc_name)); |
dea3101e | 2199 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2200 | sizeof(struct lpfc_name)); |
dea3101e JB |
2201 | } |
2202 | ||
858c9f6c JS |
2203 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2204 | "Issue FARPR: did:x%x", | |
2205 | ndlp->nlp_DID, 0, 0); | |
2206 | ||
dea3101e JB |
2207 | phba->fc_stat.elsXmitFARPR++; |
2208 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2209 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2210 | IOCB_ERROR) { | |
fa4066b6 JS |
2211 | /* The additional lpfc_nlp_put will cause the following |
2212 | * lpfc_els_free_iocb routine to trigger the release of | |
2213 | * the node. | |
2214 | */ | |
329f9bc7 | 2215 | lpfc_nlp_put(ndlp); |
dea3101e | 2216 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2217 | return 1; |
dea3101e | 2218 | } |
fa4066b6 JS |
2219 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2220 | * trigger the release of the node. | |
2221 | */ | |
329f9bc7 | 2222 | lpfc_nlp_put(ndlp); |
c9f8735b | 2223 | return 0; |
dea3101e JB |
2224 | } |
2225 | ||
e59058c4 | 2226 | /** |
3621a710 | 2227 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2228 | * @vport: pointer to a host virtual N_Port data structure. |
2229 | * @nlp: pointer to a node-list data structure. | |
2230 | * | |
2231 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2232 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2233 | * removes the ELS retry event if it presents. In addition, if the | |
2234 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2235 | * commands are sent for the @vport's nodes that require issuing discovery | |
2236 | * ADISC. | |
2237 | **/ | |
fdcebe28 | 2238 | void |
2e0fef85 | 2239 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2240 | { |
2e0fef85 | 2241 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2242 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2243 | |
0d2b6b83 JS |
2244 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2245 | return; | |
2e0fef85 | 2246 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2247 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2248 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2249 | del_timer_sync(&nlp->nlp_delayfunc); |
2250 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2251 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2252 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2253 | /* Decrement nlp reference count held for the delayed retry */ |
2254 | evtp = &nlp->els_retry_evt; | |
2255 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2256 | } | |
fdcebe28 | 2257 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2258 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2259 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2260 | spin_unlock_irq(shost->host_lock); |
2261 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2262 | if (vport->port_state < LPFC_VPORT_READY) { |
2263 | /* Check if there are more ADISCs to be sent */ | |
2264 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2265 | } else { |
2266 | /* Check if there are more PLOGIs to be sent */ | |
2267 | lpfc_more_plogi(vport); | |
90160e01 JS |
2268 | if (vport->num_disc_nodes == 0) { |
2269 | spin_lock_irq(shost->host_lock); | |
2270 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2271 | spin_unlock_irq(shost->host_lock); | |
2272 | lpfc_can_disctmo(vport); | |
2273 | lpfc_end_rscn(vport); | |
2274 | } | |
fdcebe28 JS |
2275 | } |
2276 | } | |
2277 | } | |
2278 | return; | |
2279 | } | |
2280 | ||
e59058c4 | 2281 | /** |
3621a710 | 2282 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2283 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2284 | * | |
2285 | * This routine is invoked by the ndlp delayed-function timer to check | |
2286 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2287 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2288 | * adds the delayed events to the HBA work list and invokes the | |
2289 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2290 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2291 | * the work list to hold reference count of ndlp so that it guarantees the | |
2292 | * reference to ndlp will still be available when the worker thread gets | |
2293 | * to the event associated with the ndlp. | |
2294 | **/ | |
dea3101e JB |
2295 | void |
2296 | lpfc_els_retry_delay(unsigned long ptr) | |
2297 | { | |
2e0fef85 JS |
2298 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2299 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2300 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2301 | unsigned long flags; |
2e0fef85 | 2302 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2303 | |
92d7f7b0 | 2304 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2305 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2306 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2307 | return; |
2308 | } | |
2309 | ||
fa4066b6 JS |
2310 | /* We need to hold the node by incrementing the reference |
2311 | * count until the queued work is done | |
2312 | */ | |
2313 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2314 | if (evtp->evt_arg1) { |
2315 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2316 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2317 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2318 | } |
92d7f7b0 | 2319 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2320 | return; |
2321 | } | |
2322 | ||
e59058c4 | 2323 | /** |
3621a710 | 2324 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2325 | * @ndlp: pointer to a node-list data structure. |
2326 | * | |
2327 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2328 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2329 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2330 | * function according to the delayed ELS command to retry the command. | |
2331 | **/ | |
dea3101e JB |
2332 | void |
2333 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2334 | { | |
2e0fef85 JS |
2335 | struct lpfc_vport *vport = ndlp->vport; |
2336 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2337 | uint32_t cmd, did, retry; | |
dea3101e | 2338 | |
2e0fef85 | 2339 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2340 | did = ndlp->nlp_DID; |
2341 | cmd = ndlp->nlp_last_elscmd; | |
2342 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2343 | |
2344 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2345 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2346 | return; |
2347 | } | |
2348 | ||
2349 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2350 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2351 | /* |
2352 | * If a discovery event readded nlp_delayfunc after timer | |
2353 | * firing and before processing the timer, cancel the | |
2354 | * nlp_delayfunc. | |
2355 | */ | |
2356 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e JB |
2357 | retry = ndlp->nlp_retry; |
2358 | ||
2359 | switch (cmd) { | |
2360 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2361 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2362 | break; |
2363 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2364 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2365 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2366 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2367 | } |
dea3101e JB |
2368 | break; |
2369 | case ELS_CMD_ADISC: | |
2e0fef85 | 2370 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2371 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2372 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2373 | } |
dea3101e JB |
2374 | break; |
2375 | case ELS_CMD_PRLI: | |
2e0fef85 | 2376 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2377 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2378 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2379 | } |
dea3101e JB |
2380 | break; |
2381 | case ELS_CMD_LOGO: | |
2e0fef85 | 2382 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2383 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2384 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2385 | } |
dea3101e | 2386 | break; |
92d7f7b0 JS |
2387 | case ELS_CMD_FDISC: |
2388 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2389 | break; | |
dea3101e JB |
2390 | } |
2391 | return; | |
2392 | } | |
2393 | ||
e59058c4 | 2394 | /** |
3621a710 | 2395 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2396 | * @phba: pointer to lpfc hba data structure. |
2397 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2398 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2399 | * | |
2400 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2401 | * failed. The following ELS IOCBs use this function for retrying the command | |
2402 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2403 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2404 | * returned error status, it makes the decision whether a retry shall be | |
2405 | * issued for the command, and whether a retry shall be made immediately or | |
2406 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2407 | * is called to retry the command. In the later case, the ELS command shall | |
2408 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2409 | * ndlp for the delayed command issusing. | |
2410 | * | |
2411 | * Return code | |
2412 | * 0 - No retry of els command is made | |
2413 | * 1 - Immediate or delayed retry of els command is made | |
2414 | **/ | |
dea3101e | 2415 | static int |
2e0fef85 JS |
2416 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2417 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2418 | { |
2e0fef85 JS |
2419 | struct lpfc_vport *vport = cmdiocb->vport; |
2420 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2421 | IOCB_t *irsp = &rspiocb->iocb; | |
2422 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2423 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2424 | uint32_t *elscmd; |
2425 | struct ls_rjt stat; | |
2e0fef85 | 2426 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2427 | int logerr = 0; |
2e0fef85 | 2428 | uint32_t cmd = 0; |
488d1469 | 2429 | uint32_t did; |
dea3101e | 2430 | |
488d1469 | 2431 | |
dea3101e JB |
2432 | /* Note: context2 may be 0 for internal driver abort |
2433 | * of delays ELS command. | |
2434 | */ | |
2435 | ||
2436 | if (pcmd && pcmd->virt) { | |
2437 | elscmd = (uint32_t *) (pcmd->virt); | |
2438 | cmd = *elscmd++; | |
2439 | } | |
2440 | ||
e47c9093 | 2441 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2442 | did = ndlp->nlp_DID; |
2443 | else { | |
2444 | /* We should only hit this case for retrying PLOGI */ | |
2445 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2446 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2447 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2448 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2449 | return 1; |
2450 | } | |
2451 | ||
858c9f6c JS |
2452 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2453 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2454 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2455 | ||
dea3101e JB |
2456 | switch (irsp->ulpStatus) { |
2457 | case IOSTAT_FCP_RSP_ERROR: | |
2458 | case IOSTAT_REMOTE_STOP: | |
2459 | break; | |
2460 | ||
2461 | case IOSTAT_LOCAL_REJECT: | |
2462 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2463 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2464 | if (cmd == ELS_CMD_FLOGI) { |
2465 | if (PCI_DEVICE_ID_HORNET == | |
2466 | phba->pcidev->device) { | |
2467 | phba->fc_topology = TOPOLOGY_LOOP; | |
2468 | phba->pport->fc_myDID = 0; | |
2469 | phba->alpa_map[0] = 0; | |
2470 | phba->alpa_map[1] = 0; | |
2471 | } | |
2472 | } | |
2e0fef85 | 2473 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2474 | delay = 1000; |
dea3101e JB |
2475 | retry = 1; |
2476 | break; | |
2477 | ||
92d7f7b0 | 2478 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2479 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2480 | "0124 Retry illegal cmd x%x " | |
2481 | "retry:x%x delay:x%x\n", | |
2482 | cmd, cmdiocb->retry, delay); | |
2483 | retry = 1; | |
2484 | /* All command's retry policy */ | |
2485 | maxretry = 8; | |
2486 | if (cmdiocb->retry > 2) | |
2487 | delay = 1000; | |
92d7f7b0 JS |
2488 | break; |
2489 | ||
dea3101e | 2490 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2491 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2492 | retry = 1; |
2493 | if (cmdiocb->retry > 100) | |
2494 | delay = 100; | |
2495 | maxretry = 250; | |
2496 | break; | |
2497 | ||
2498 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2499 | delay = 100; |
dea3101e JB |
2500 | retry = 1; |
2501 | break; | |
2502 | ||
858c9f6c | 2503 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2504 | case IOERR_INVALID_RPI: |
2505 | retry = 1; | |
2506 | break; | |
2507 | } | |
2508 | break; | |
2509 | ||
2510 | case IOSTAT_NPORT_RJT: | |
2511 | case IOSTAT_FABRIC_RJT: | |
2512 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2513 | retry = 1; | |
2514 | break; | |
2515 | } | |
2516 | break; | |
2517 | ||
2518 | case IOSTAT_NPORT_BSY: | |
2519 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2520 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2521 | retry = 1; |
2522 | break; | |
2523 | ||
2524 | case IOSTAT_LS_RJT: | |
2525 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2526 | /* Added for Vendor specifc support | |
2527 | * Just keep retrying for these Rsn / Exp codes | |
2528 | */ | |
2529 | switch (stat.un.b.lsRjtRsnCode) { | |
2530 | case LSRJT_UNABLE_TPC: | |
2531 | if (stat.un.b.lsRjtRsnCodeExp == | |
2532 | LSEXP_CMD_IN_PROGRESS) { | |
2533 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2534 | delay = 1000; |
dea3101e JB |
2535 | maxretry = 48; |
2536 | } | |
2537 | retry = 1; | |
2538 | break; | |
2539 | } | |
2540 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2541 | delay = 1000; |
dea3101e JB |
2542 | maxretry = lpfc_max_els_tries + 1; |
2543 | retry = 1; | |
2544 | break; | |
2545 | } | |
92d7f7b0 JS |
2546 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2547 | (cmd == ELS_CMD_FDISC) && | |
2548 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2549 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2550 | "0125 FDISC Failed (x%x). " | |
2551 | "Fabric out of resources\n", | |
2552 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2553 | lpfc_vport_set_state(vport, |
2554 | FC_VPORT_NO_FABRIC_RSCS); | |
2555 | } | |
dea3101e JB |
2556 | break; |
2557 | ||
2558 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2559 | if ((cmd == ELS_CMD_PLOGI) || |
2560 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2561 | delay = 1000; |
dea3101e | 2562 | maxretry = 48; |
92d7f7b0 | 2563 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2564 | /* FDISC retry policy */ |
2565 | maxretry = 48; | |
2566 | if (cmdiocb->retry >= 32) | |
2567 | delay = 1000; | |
dea3101e JB |
2568 | } |
2569 | retry = 1; | |
2570 | break; | |
92d7f7b0 JS |
2571 | |
2572 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2573 | /* There are some cases where switches return this |
2574 | * error when they are not ready and should be returning | |
2575 | * Logical Busy. We should delay every time. | |
2576 | */ | |
2577 | if (cmd == ELS_CMD_FDISC && | |
2578 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2579 | maxretry = 3; | |
2580 | delay = 1000; | |
2581 | retry = 1; | |
2582 | break; | |
2583 | } | |
92d7f7b0 JS |
2584 | case LSRJT_PROTOCOL_ERR: |
2585 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2586 | (cmd == ELS_CMD_FDISC) && | |
2587 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2588 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2589 | ) { | |
e8b62011 | 2590 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2591 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2592 | "Fabric Detected Bad WWN\n", |
2593 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2594 | lpfc_vport_set_state(vport, |
2595 | FC_VPORT_FABRIC_REJ_WWN); | |
2596 | } | |
2597 | break; | |
dea3101e JB |
2598 | } |
2599 | break; | |
2600 | ||
2601 | case IOSTAT_INTERMED_RSP: | |
2602 | case IOSTAT_BA_RJT: | |
2603 | break; | |
2604 | ||
2605 | default: | |
2606 | break; | |
2607 | } | |
2608 | ||
488d1469 | 2609 | if (did == FDMI_DID) |
dea3101e | 2610 | retry = 1; |
dea3101e | 2611 | |
98c9ea5c | 2612 | if ((cmd == ELS_CMD_FLOGI) && |
1b32f6aa JS |
2613 | (phba->fc_topology != TOPOLOGY_LOOP) && |
2614 | !lpfc_error_lost_link(irsp)) { | |
98c9ea5c JS |
2615 | /* FLOGI retry policy */ |
2616 | retry = 1; | |
2617 | maxretry = 48; | |
2618 | if (cmdiocb->retry >= 32) | |
2619 | delay = 1000; | |
2620 | } | |
2621 | ||
dea3101e JB |
2622 | if ((++cmdiocb->retry) >= maxretry) { |
2623 | phba->fc_stat.elsRetryExceeded++; | |
2624 | retry = 0; | |
2625 | } | |
2626 | ||
ed957684 JS |
2627 | if ((vport->load_flag & FC_UNLOADING) != 0) |
2628 | retry = 0; | |
2629 | ||
dea3101e JB |
2630 | if (retry) { |
2631 | ||
2632 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
2633 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2634 | "0107 Retry ELS command x%x to remote " | |
2635 | "NPORT x%x Data: x%x x%x\n", | |
2636 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 2637 | |
858c9f6c JS |
2638 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
2639 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
2640 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
2641 | /* Don't reset timer for no resources */ | |
2642 | ||
dea3101e | 2643 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 2644 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 2645 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 2646 | lpfc_set_disctmo(vport); |
dea3101e JB |
2647 | } |
2648 | ||
2649 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 2650 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
2651 | phba->fc_stat.elsDelayRetry++; |
2652 | ndlp->nlp_retry = cmdiocb->retry; | |
2653 | ||
92d7f7b0 JS |
2654 | /* delay is specified in milliseconds */ |
2655 | mod_timer(&ndlp->nlp_delayfunc, | |
2656 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 2657 | spin_lock_irq(shost->host_lock); |
dea3101e | 2658 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 2659 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2660 | |
5024ab17 | 2661 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
2662 | if (cmd == ELS_CMD_PRLI) |
2663 | lpfc_nlp_set_state(vport, ndlp, | |
2664 | NLP_STE_REG_LOGIN_ISSUE); | |
2665 | else | |
2666 | lpfc_nlp_set_state(vport, ndlp, | |
2667 | NLP_STE_NPR_NODE); | |
dea3101e JB |
2668 | ndlp->nlp_last_elscmd = cmd; |
2669 | ||
c9f8735b | 2670 | return 1; |
dea3101e JB |
2671 | } |
2672 | switch (cmd) { | |
2673 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2674 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 2675 | return 1; |
92d7f7b0 JS |
2676 | case ELS_CMD_FDISC: |
2677 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
2678 | return 1; | |
dea3101e | 2679 | case ELS_CMD_PLOGI: |
58da1ffb | 2680 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 2681 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2682 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 2683 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 2684 | } |
2e0fef85 | 2685 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 2686 | return 1; |
dea3101e | 2687 | case ELS_CMD_ADISC: |
5024ab17 | 2688 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2689 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
2690 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2691 | return 1; |
dea3101e | 2692 | case ELS_CMD_PRLI: |
5024ab17 | 2693 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2694 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
2695 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2696 | return 1; |
dea3101e | 2697 | case ELS_CMD_LOGO: |
5024ab17 | 2698 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2699 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
2700 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2701 | return 1; |
dea3101e JB |
2702 | } |
2703 | } | |
dea3101e | 2704 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
2705 | if (logerr) { |
2706 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
2707 | "0137 No retry ELS command x%x to remote " | |
2708 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
2709 | cmd, did, irsp->ulpStatus, | |
2710 | irsp->un.ulpWord[4]); | |
2711 | } | |
2712 | else { | |
2713 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
2714 | "0108 No retry ELS command x%x to remote " |
2715 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
2716 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
2717 | irsp->un.ulpWord[4]); | |
98c9ea5c | 2718 | } |
c9f8735b | 2719 | return 0; |
dea3101e JB |
2720 | } |
2721 | ||
e59058c4 | 2722 | /** |
3621a710 | 2723 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
2724 | * @phba: pointer to lpfc hba data structure. |
2725 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
2726 | * | |
2727 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
2728 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
2729 | * checks to see whether there is a lpfc DMA buffer associated with the | |
2730 | * response of the command IOCB. If so, it will be released before releasing | |
2731 | * the lpfc DMA buffer associated with the IOCB itself. | |
2732 | * | |
2733 | * Return code | |
2734 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2735 | **/ | |
09372820 | 2736 | static int |
87af33fe JS |
2737 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
2738 | { | |
2739 | struct lpfc_dmabuf *buf_ptr; | |
2740 | ||
e59058c4 | 2741 | /* Free the response before processing the command. */ |
87af33fe JS |
2742 | if (!list_empty(&buf_ptr1->list)) { |
2743 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
2744 | struct lpfc_dmabuf, | |
2745 | list); | |
2746 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2747 | kfree(buf_ptr); | |
2748 | } | |
2749 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2750 | kfree(buf_ptr1); | |
2751 | return 0; | |
2752 | } | |
2753 | ||
e59058c4 | 2754 | /** |
3621a710 | 2755 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
2756 | * @phba: pointer to lpfc hba data structure. |
2757 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
2758 | * | |
2759 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
2760 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
2761 | * pool. | |
2762 | * | |
2763 | * Return code | |
2764 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2765 | **/ | |
09372820 | 2766 | static int |
87af33fe JS |
2767 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
2768 | { | |
2769 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2770 | kfree(buf_ptr); | |
2771 | return 0; | |
2772 | } | |
2773 | ||
e59058c4 | 2774 | /** |
3621a710 | 2775 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
2776 | * @phba: pointer to lpfc hba data structure. |
2777 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
2778 | * | |
2779 | * This routine frees a command IOCB and its associated resources. The | |
2780 | * command IOCB data structure contains the reference to various associated | |
2781 | * resources, these fields must be set to NULL if the associated reference | |
2782 | * not present: | |
2783 | * context1 - reference to ndlp | |
2784 | * context2 - reference to cmd | |
2785 | * context2->next - reference to rsp | |
2786 | * context3 - reference to bpl | |
2787 | * | |
2788 | * It first properly decrements the reference count held on ndlp for the | |
2789 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
2790 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
2791 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
2792 | * adds the DMA buffer the @phba data structure for the delayed release. | |
2793 | * If reference to the Buffer Pointer List (BPL) is present, the | |
2794 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
2795 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
2796 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
2797 | * | |
2798 | * Return code | |
2799 | * 0 - Success (currently, always return 0) | |
2800 | **/ | |
dea3101e | 2801 | int |
329f9bc7 | 2802 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
2803 | { |
2804 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
2805 | struct lpfc_nodelist *ndlp; |
2806 | ||
2807 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
2808 | if (ndlp) { | |
2809 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
2810 | lpfc_nlp_put(ndlp); | |
dea3101e | 2811 | |
a8adb832 JS |
2812 | /* If the ndlp is not being used by another discovery |
2813 | * thread, free it. | |
2814 | */ | |
2815 | if (!lpfc_nlp_not_used(ndlp)) { | |
2816 | /* If ndlp is being used by another discovery | |
2817 | * thread, just clear NLP_DEFER_RM | |
2818 | */ | |
2819 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
2820 | } | |
2821 | } | |
2822 | else | |
2823 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
2824 | elsiocb->context1 = NULL; |
2825 | } | |
dea3101e JB |
2826 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
2827 | if (elsiocb->context2) { | |
0ff10d46 JS |
2828 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
2829 | /* Firmware could still be in progress of DMAing | |
2830 | * payload, so don't free data buffer till after | |
2831 | * a hbeat. | |
2832 | */ | |
2833 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
2834 | buf_ptr = elsiocb->context2; | |
2835 | elsiocb->context2 = NULL; | |
2836 | if (buf_ptr) { | |
2837 | buf_ptr1 = NULL; | |
2838 | spin_lock_irq(&phba->hbalock); | |
2839 | if (!list_empty(&buf_ptr->list)) { | |
2840 | list_remove_head(&buf_ptr->list, | |
2841 | buf_ptr1, struct lpfc_dmabuf, | |
2842 | list); | |
2843 | INIT_LIST_HEAD(&buf_ptr1->list); | |
2844 | list_add_tail(&buf_ptr1->list, | |
2845 | &phba->elsbuf); | |
2846 | phba->elsbuf_cnt++; | |
2847 | } | |
2848 | INIT_LIST_HEAD(&buf_ptr->list); | |
2849 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
2850 | phba->elsbuf_cnt++; | |
2851 | spin_unlock_irq(&phba->hbalock); | |
2852 | } | |
2853 | } else { | |
2854 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
2855 | lpfc_els_free_data(phba, buf_ptr1); | |
2856 | } | |
dea3101e JB |
2857 | } |
2858 | ||
2859 | if (elsiocb->context3) { | |
2860 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 2861 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 2862 | } |
604a3e30 | 2863 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
2864 | return 0; |
2865 | } | |
2866 | ||
e59058c4 | 2867 | /** |
3621a710 | 2868 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
2869 | * @phba: pointer to lpfc hba data structure. |
2870 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2871 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2872 | * | |
2873 | * This routine is the completion callback function to the Logout (LOGO) | |
2874 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
2875 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
2876 | * release the ndlp if it has the last reference remaining (reference count | |
2877 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
2878 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
2879 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
2880 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
2881 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
2882 | * IOCB data structure. | |
2883 | **/ | |
dea3101e | 2884 | static void |
2e0fef85 JS |
2885 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2886 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2887 | { |
2e0fef85 JS |
2888 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2889 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
2890 | IOCB_t *irsp; |
2891 | ||
2892 | irsp = &rspiocb->iocb; | |
2893 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
2894 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
2895 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 2896 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
2897 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2898 | "0109 ACC to LOGO completes to NPort x%x " | |
2899 | "Data: x%x x%x x%x\n", | |
2900 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
2901 | ndlp->nlp_rpi); | |
87af33fe JS |
2902 | |
2903 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
2904 | /* NPort Recovery mode or node is just allocated */ | |
2905 | if (!lpfc_nlp_not_used(ndlp)) { | |
2906 | /* If the ndlp is being used by another discovery | |
2907 | * thread, just unregister the RPI. | |
2908 | */ | |
2909 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
2910 | } else { |
2911 | /* Indicate the node has already released, should | |
2912 | * not reference to it from within lpfc_els_free_iocb. | |
2913 | */ | |
2914 | cmdiocb->context1 = NULL; | |
87af33fe | 2915 | } |
dea3101e JB |
2916 | } |
2917 | lpfc_els_free_iocb(phba, cmdiocb); | |
2918 | return; | |
2919 | } | |
2920 | ||
e59058c4 | 2921 | /** |
3621a710 | 2922 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
2923 | * @phba: pointer to lpfc hba data structure. |
2924 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
2925 | * | |
2926 | * This routine is the completion callback function for unregister default | |
2927 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
2928 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
2929 | * decrements the ndlp reference count held for this completion callback | |
2930 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
2931 | * whether there is only one reference left on the ndlp. If so, it will | |
2932 | * perform one more decrement and trigger the release of the ndlp. | |
2933 | **/ | |
858c9f6c JS |
2934 | void |
2935 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
2936 | { | |
2937 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
2938 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
2939 | ||
2940 | pmb->context1 = NULL; | |
2941 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
2942 | kfree(mp); | |
2943 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 2944 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 2945 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
2946 | /* This is the end of the default RPI cleanup logic for this |
2947 | * ndlp. If no other discovery threads are using this ndlp. | |
2948 | * we should free all resources associated with it. | |
2949 | */ | |
2950 | lpfc_nlp_not_used(ndlp); | |
2951 | } | |
3772a991 | 2952 | |
858c9f6c JS |
2953 | return; |
2954 | } | |
2955 | ||
e59058c4 | 2956 | /** |
3621a710 | 2957 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
2958 | * @phba: pointer to lpfc hba data structure. |
2959 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2960 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2961 | * | |
2962 | * This routine is the completion callback function for ELS Response IOCB | |
2963 | * command. In normal case, this callback function just properly sets the | |
2964 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
2965 | * field in the command IOCB is not NULL, the referred mailbox command will | |
2966 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
2967 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
2968 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
2969 | * routine shall be invoked trying to release the ndlp if no other threads | |
2970 | * are currently referring it. | |
2971 | **/ | |
dea3101e | 2972 | static void |
858c9f6c | 2973 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 2974 | struct lpfc_iocbq *rspiocb) |
dea3101e | 2975 | { |
2e0fef85 JS |
2976 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
2977 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
2978 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
2979 | IOCB_t *irsp; |
2980 | uint8_t *pcmd; | |
dea3101e | 2981 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 2982 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 2983 | uint32_t ls_rjt = 0; |
dea3101e | 2984 | |
33ccf8d1 JS |
2985 | irsp = &rspiocb->iocb; |
2986 | ||
dea3101e JB |
2987 | if (cmdiocb->context_un.mbox) |
2988 | mbox = cmdiocb->context_un.mbox; | |
2989 | ||
fa4066b6 JS |
2990 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
2991 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
2992 | */ | |
87af33fe | 2993 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
2994 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
2995 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 JS |
2996 | /* A LS_RJT associated with Default RPI cleanup has its own |
2997 | * seperate code path. | |
87af33fe JS |
2998 | */ |
2999 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3000 | ls_rjt = 1; | |
3001 | } | |
3002 | ||
dea3101e | 3003 | /* Check to see if link went down during discovery */ |
58da1ffb | 3004 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3005 | if (mbox) { |
14691150 JS |
3006 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3007 | if (mp) { | |
3008 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3009 | kfree(mp); | |
3010 | } | |
329f9bc7 | 3011 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3012 | } |
58da1ffb JS |
3013 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3014 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3015 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3016 | ndlp = NULL; |
fa4066b6 JS |
3017 | /* Indicate the node has already released, |
3018 | * should not reference to it from within | |
3019 | * the routine lpfc_els_free_iocb. | |
3020 | */ | |
3021 | cmdiocb->context1 = NULL; | |
3022 | } | |
dea3101e JB |
3023 | goto out; |
3024 | } | |
3025 | ||
858c9f6c | 3026 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3027 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3028 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3029 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3030 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3031 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3032 | "0110 ELS response tag x%x completes " | |
3033 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3034 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3035 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3036 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3037 | ndlp->nlp_rpi); | |
dea3101e JB |
3038 | if (mbox) { |
3039 | if ((rspiocb->iocb.ulpStatus == 0) | |
3040 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3041 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3042 | /* Increment reference count to ndlp to hold the |
3043 | * reference to ndlp for the callback function. | |
3044 | */ | |
329f9bc7 | 3045 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3046 | mbox->vport = vport; |
858c9f6c JS |
3047 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3048 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3049 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3050 | } | |
3051 | else { | |
3052 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3053 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3054 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3055 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3056 | } |
0b727fea | 3057 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3058 | != MBX_NOT_FINISHED) |
dea3101e | 3059 | goto out; |
e47c9093 JS |
3060 | else |
3061 | /* Decrement the ndlp reference count we | |
3062 | * set for this failed mailbox command. | |
3063 | */ | |
3064 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3065 | |
3066 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3067 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3068 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3069 | "Data: x%x x%x x%x\n", | |
3070 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3071 | ndlp->nlp_rpi); | |
3072 | ||
fa4066b6 | 3073 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3074 | ndlp = NULL; |
fa4066b6 JS |
3075 | /* Indicate node has already been released, |
3076 | * should not reference to it from within | |
3077 | * the routine lpfc_els_free_iocb. | |
3078 | */ | |
3079 | cmdiocb->context1 = NULL; | |
3080 | } | |
dea3101e | 3081 | } else { |
858c9f6c JS |
3082 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3083 | if (!lpfc_error_lost_link(irsp) && | |
3084 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3085 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3086 | ndlp = NULL; |
fa4066b6 JS |
3087 | /* Indicate node has already been |
3088 | * released, should not reference | |
3089 | * to it from within the routine | |
3090 | * lpfc_els_free_iocb. | |
3091 | */ | |
3092 | cmdiocb->context1 = NULL; | |
3093 | } | |
dea3101e JB |
3094 | } |
3095 | } | |
14691150 JS |
3096 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3097 | if (mp) { | |
3098 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3099 | kfree(mp); | |
3100 | } | |
3101 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3102 | } |
3103 | out: | |
58da1ffb | 3104 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3105 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3106 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3107 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3108 | |
3109 | /* If the node is not being used by another discovery thread, | |
3110 | * and we are sending a reject, we are done with it. | |
3111 | * Release driver reference count here and free associated | |
3112 | * resources. | |
3113 | */ | |
3114 | if (ls_rjt) | |
fa4066b6 JS |
3115 | if (lpfc_nlp_not_used(ndlp)) |
3116 | /* Indicate node has already been released, | |
3117 | * should not reference to it from within | |
3118 | * the routine lpfc_els_free_iocb. | |
3119 | */ | |
3120 | cmdiocb->context1 = NULL; | |
dea3101e | 3121 | } |
87af33fe | 3122 | |
dea3101e JB |
3123 | lpfc_els_free_iocb(phba, cmdiocb); |
3124 | return; | |
3125 | } | |
3126 | ||
e59058c4 | 3127 | /** |
3621a710 | 3128 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3129 | * @vport: pointer to a host virtual N_Port data structure. |
3130 | * @flag: the els command code to be accepted. | |
3131 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3132 | * @ndlp: pointer to a node-list data structure. | |
3133 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3134 | * | |
3135 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3136 | * command. It uses the @flag to properly set up the IOCB field for the | |
3137 | * specific ACC response command to be issued and invokes the | |
3138 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3139 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3140 | * field of the IOCB for the completion callback function to issue the | |
3141 | * mailbox command to the HBA later when callback is invoked. | |
3142 | * | |
3143 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3144 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3145 | * will be stored into the context1 field of the IOCB for the completion | |
3146 | * callback function to the corresponding response ELS IOCB command. | |
3147 | * | |
3148 | * Return code | |
3149 | * 0 - Successfully issued acc response | |
3150 | * 1 - Failed to issue acc response | |
3151 | **/ | |
dea3101e | 3152 | int |
2e0fef85 JS |
3153 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3154 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3155 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3156 | { |
2e0fef85 JS |
3157 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3158 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3159 | IOCB_t *icmd; |
3160 | IOCB_t *oldcmd; | |
3161 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3162 | struct lpfc_sli *psli; |
3163 | uint8_t *pcmd; | |
3164 | uint16_t cmdsize; | |
3165 | int rc; | |
82d9a2a2 | 3166 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3167 | |
3168 | psli = &phba->sli; | |
dea3101e JB |
3169 | oldcmd = &oldiocb->iocb; |
3170 | ||
3171 | switch (flag) { | |
3172 | case ELS_CMD_ACC: | |
92d7f7b0 | 3173 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3174 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3175 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3176 | if (!elsiocb) { |
2e0fef85 | 3177 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3178 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3179 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3180 | return 1; |
dea3101e | 3181 | } |
2e0fef85 | 3182 | |
dea3101e JB |
3183 | icmd = &elsiocb->iocb; |
3184 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3185 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3186 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3187 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3188 | |
3189 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3190 | "Issue ACC: did:x%x flg:x%x", | |
3191 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3192 | break; |
3193 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3194 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3195 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3196 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3197 | if (!elsiocb) |
c9f8735b | 3198 | return 1; |
488d1469 | 3199 | |
dea3101e JB |
3200 | icmd = &elsiocb->iocb; |
3201 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3202 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3203 | ||
3204 | if (mbox) | |
3205 | elsiocb->context_un.mbox = mbox; | |
3206 | ||
3207 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3208 | pcmd += sizeof(uint32_t); |
3209 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3210 | |
3211 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3212 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3213 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3214 | break; |
82d9a2a2 | 3215 | case ELS_CMD_PRLO: |
92d7f7b0 | 3216 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3217 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3218 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3219 | if (!elsiocb) | |
3220 | return 1; | |
3221 | ||
3222 | icmd = &elsiocb->iocb; | |
3223 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3224 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3225 | ||
3226 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3227 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3228 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3229 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3230 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3231 | |
3232 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3233 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3234 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3235 | break; |
dea3101e | 3236 | default: |
c9f8735b | 3237 | return 1; |
dea3101e | 3238 | } |
dea3101e | 3239 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3240 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3241 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3242 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3243 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3244 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3245 | ndlp->nlp_rpi); | |
dea3101e | 3246 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3247 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3248 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3249 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3250 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3251 | } else { | |
858c9f6c | 3252 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3253 | } |
3254 | ||
3255 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3256 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3257 | if (rc == IOCB_ERROR) { |
3258 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3259 | return 1; |
dea3101e | 3260 | } |
c9f8735b | 3261 | return 0; |
dea3101e JB |
3262 | } |
3263 | ||
e59058c4 | 3264 | /** |
3621a710 | 3265 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3266 | * @vport: pointer to a virtual N_Port data structure. |
3267 | * @rejectError: | |
3268 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3269 | * @ndlp: pointer to a node-list data structure. | |
3270 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3271 | * | |
3272 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3273 | * command. If a @mbox pointer is passed in, it will be put into the | |
3274 | * context_un.mbox field of the IOCB for the completion callback function | |
3275 | * to issue to the HBA later. | |
3276 | * | |
3277 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3278 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3279 | * will be stored into the context1 field of the IOCB for the completion | |
3280 | * callback function to the reject response ELS IOCB command. | |
3281 | * | |
3282 | * Return code | |
3283 | * 0 - Successfully issued reject response | |
3284 | * 1 - Failed to issue reject response | |
3285 | **/ | |
dea3101e | 3286 | int |
2e0fef85 | 3287 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3288 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3289 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3290 | { |
2e0fef85 | 3291 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3292 | IOCB_t *icmd; |
3293 | IOCB_t *oldcmd; | |
3294 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3295 | struct lpfc_sli *psli; |
3296 | uint8_t *pcmd; | |
3297 | uint16_t cmdsize; | |
3298 | int rc; | |
3299 | ||
3300 | psli = &phba->sli; | |
92d7f7b0 | 3301 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3302 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3303 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3304 | if (!elsiocb) |
c9f8735b | 3305 | return 1; |
dea3101e JB |
3306 | |
3307 | icmd = &elsiocb->iocb; | |
3308 | oldcmd = &oldiocb->iocb; | |
3309 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3310 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3311 | ||
3312 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3313 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3314 | *((uint32_t *) (pcmd)) = rejectError; |
3315 | ||
51ef4c26 | 3316 | if (mbox) |
858c9f6c | 3317 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3318 | |
dea3101e | 3319 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3320 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3321 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3322 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3323 | "rpi x%x\n", | |
3324 | rejectError, elsiocb->iotag, | |
3325 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3326 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3327 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3328 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3329 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3330 | ||
dea3101e | 3331 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3332 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3333 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3334 | |
dea3101e JB |
3335 | if (rc == IOCB_ERROR) { |
3336 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3337 | return 1; |
dea3101e | 3338 | } |
c9f8735b | 3339 | return 0; |
dea3101e JB |
3340 | } |
3341 | ||
e59058c4 | 3342 | /** |
3621a710 | 3343 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3344 | * @vport: pointer to a virtual N_Port data structure. |
3345 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3346 | * @ndlp: pointer to a node-list data structure. | |
3347 | * | |
3348 | * This routine prepares and issues an Accept (ACC) response to Address | |
3349 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3350 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3351 | * | |
3352 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3353 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3354 | * will be stored into the context1 field of the IOCB for the completion | |
3355 | * callback function to the ADISC Accept response ELS IOCB command. | |
3356 | * | |
3357 | * Return code | |
3358 | * 0 - Successfully issued acc adisc response | |
3359 | * 1 - Failed to issue adisc acc response | |
3360 | **/ | |
dea3101e | 3361 | int |
2e0fef85 JS |
3362 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3363 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3364 | { |
2e0fef85 | 3365 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3366 | ADISC *ap; |
2e0fef85 | 3367 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3368 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3369 | uint8_t *pcmd; |
3370 | uint16_t cmdsize; | |
3371 | int rc; | |
3372 | ||
92d7f7b0 | 3373 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3374 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3375 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3376 | if (!elsiocb) |
c9f8735b | 3377 | return 1; |
dea3101e | 3378 | |
5b8bd0c9 JS |
3379 | icmd = &elsiocb->iocb; |
3380 | oldcmd = &oldiocb->iocb; | |
3381 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3382 | ||
dea3101e | 3383 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3384 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3385 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3386 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3387 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3388 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3389 | ndlp->nlp_rpi); | |
dea3101e JB |
3390 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3391 | ||
3392 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3393 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3394 | |
3395 | ap = (ADISC *) (pcmd); | |
3396 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3397 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3398 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3399 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3400 | |
858c9f6c JS |
3401 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3402 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3403 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3404 | ||
dea3101e | 3405 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3406 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3407 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3408 | if (rc == IOCB_ERROR) { |
3409 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3410 | return 1; |
dea3101e | 3411 | } |
c9f8735b | 3412 | return 0; |
dea3101e JB |
3413 | } |
3414 | ||
e59058c4 | 3415 | /** |
3621a710 | 3416 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3417 | * @vport: pointer to a virtual N_Port data structure. |
3418 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3419 | * @ndlp: pointer to a node-list data structure. | |
3420 | * | |
3421 | * This routine prepares and issues an Accept (ACC) response to Process | |
3422 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3423 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3424 | * | |
3425 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3426 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3427 | * will be stored into the context1 field of the IOCB for the completion | |
3428 | * callback function to the PRLI Accept response ELS IOCB command. | |
3429 | * | |
3430 | * Return code | |
3431 | * 0 - Successfully issued acc prli response | |
3432 | * 1 - Failed to issue acc prli response | |
3433 | **/ | |
dea3101e | 3434 | int |
2e0fef85 | 3435 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3436 | struct lpfc_nodelist *ndlp) |
dea3101e | 3437 | { |
2e0fef85 | 3438 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3439 | PRLI *npr; |
3440 | lpfc_vpd_t *vpd; | |
3441 | IOCB_t *icmd; | |
3442 | IOCB_t *oldcmd; | |
3443 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3444 | struct lpfc_sli *psli; |
3445 | uint8_t *pcmd; | |
3446 | uint16_t cmdsize; | |
3447 | int rc; | |
3448 | ||
3449 | psli = &phba->sli; | |
dea3101e | 3450 | |
92d7f7b0 | 3451 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3452 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3453 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3454 | if (!elsiocb) |
3455 | return 1; | |
dea3101e | 3456 | |
5b8bd0c9 JS |
3457 | icmd = &elsiocb->iocb; |
3458 | oldcmd = &oldiocb->iocb; | |
3459 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3460 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3461 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3462 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3463 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3464 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3465 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3466 | ndlp->nlp_rpi); | |
dea3101e JB |
3467 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3468 | ||
3469 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3470 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3471 | |
3472 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3473 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3474 | |
3475 | npr = (PRLI *) pcmd; | |
3476 | vpd = &phba->vpd; | |
3477 | /* | |
0d2b6b83 JS |
3478 | * If the remote port is a target and our firmware version is 3.20 or |
3479 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3480 | */ |
0d2b6b83 JS |
3481 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3482 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3483 | npr->ConfmComplAllowed = 1; |
3484 | npr->Retry = 1; | |
3485 | npr->TaskRetryIdReq = 1; | |
3486 | } | |
3487 | ||
3488 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3489 | npr->estabImagePair = 1; | |
3490 | npr->readXferRdyDis = 1; | |
3491 | npr->ConfmComplAllowed = 1; | |
3492 | ||
3493 | npr->prliType = PRLI_FCP_TYPE; | |
3494 | npr->initiatorFunc = 1; | |
3495 | ||
858c9f6c JS |
3496 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3497 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3498 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3499 | ||
dea3101e | 3500 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3501 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3502 | |
3772a991 | 3503 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3504 | if (rc == IOCB_ERROR) { |
3505 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3506 | return 1; |
dea3101e | 3507 | } |
c9f8735b | 3508 | return 0; |
dea3101e JB |
3509 | } |
3510 | ||
e59058c4 | 3511 | /** |
3621a710 | 3512 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3513 | * @vport: pointer to a virtual N_Port data structure. |
3514 | * @format: rnid command format. | |
3515 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3516 | * @ndlp: pointer to a node-list data structure. | |
3517 | * | |
3518 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3519 | * (ACC) response. It constructs the RNID ACC response command according to | |
3520 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3521 | * issue the response. Note that this command does not need to hold the ndlp | |
3522 | * reference count for the callback. So, the ndlp reference count taken by | |
3523 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3524 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3525 | * there is no ndlp reference available. | |
3526 | * | |
3527 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3528 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3529 | * will be stored into the context1 field of the IOCB for the completion | |
3530 | * callback function. However, for the RNID Accept Response ELS command, | |
3531 | * this is undone later by this routine after the IOCB is allocated. | |
3532 | * | |
3533 | * Return code | |
3534 | * 0 - Successfully issued acc rnid response | |
3535 | * 1 - Failed to issue acc rnid response | |
3536 | **/ | |
dea3101e | 3537 | static int |
2e0fef85 | 3538 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3539 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3540 | { |
2e0fef85 | 3541 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3542 | RNID *rn; |
2e0fef85 | 3543 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3544 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3545 | struct lpfc_sli *psli; |
3546 | uint8_t *pcmd; | |
3547 | uint16_t cmdsize; | |
3548 | int rc; | |
3549 | ||
3550 | psli = &phba->sli; | |
92d7f7b0 JS |
3551 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3552 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3553 | if (format) |
92d7f7b0 | 3554 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3555 | |
2e0fef85 JS |
3556 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3557 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3558 | if (!elsiocb) |
c9f8735b | 3559 | return 1; |
dea3101e | 3560 | |
5b8bd0c9 JS |
3561 | icmd = &elsiocb->iocb; |
3562 | oldcmd = &oldiocb->iocb; | |
3563 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3564 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3565 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3566 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3567 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3568 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3569 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3570 | pcmd += sizeof(uint32_t); |
dea3101e | 3571 | |
92d7f7b0 | 3572 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
3573 | rn = (RNID *) (pcmd); |
3574 | rn->Format = format; | |
92d7f7b0 JS |
3575 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3576 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3577 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
3578 | switch (format) { |
3579 | case 0: | |
3580 | rn->SpecificLen = 0; | |
3581 | break; | |
3582 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3583 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3584 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3585 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
3586 | rn->un.topologyDisc.unitType = RNID_HBA; |
3587 | rn->un.topologyDisc.physPort = 0; | |
3588 | rn->un.topologyDisc.attachedNodes = 0; | |
3589 | break; | |
3590 | default: | |
3591 | rn->CommonLen = 0; | |
3592 | rn->SpecificLen = 0; | |
3593 | break; | |
3594 | } | |
3595 | ||
858c9f6c JS |
3596 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3597 | "Issue ACC RNID: did:x%x flg:x%x", | |
3598 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3599 | ||
dea3101e | 3600 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3601 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3602 | lpfc_nlp_put(ndlp); |
dea3101e JB |
3603 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3604 | * it could be freed */ | |
3605 | ||
3772a991 | 3606 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3607 | if (rc == IOCB_ERROR) { |
3608 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3609 | return 1; |
dea3101e | 3610 | } |
c9f8735b | 3611 | return 0; |
dea3101e JB |
3612 | } |
3613 | ||
e59058c4 | 3614 | /** |
3621a710 | 3615 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
3616 | * @vport: pointer to a host virtual N_Port data structure. |
3617 | * | |
3618 | * This routine issues Address Discover (ADISC) ELS commands to those | |
3619 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
3620 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
3621 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
3622 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
3623 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
3624 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
3625 | * IOCBs quit for later pick up. On the other hand, after walking through | |
3626 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
3627 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
3628 | * no more ADISC need to be sent. | |
3629 | * | |
3630 | * Return code | |
3631 | * The number of N_Ports with adisc issued. | |
3632 | **/ | |
dea3101e | 3633 | int |
2e0fef85 | 3634 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 3635 | { |
2e0fef85 | 3636 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3637 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3638 | int sentadisc = 0; |
dea3101e | 3639 | |
685f0bf7 | 3640 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 3641 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
3642 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3643 | continue; | |
685f0bf7 JS |
3644 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3645 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3646 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 3647 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 3648 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 3649 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 3650 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3651 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3652 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 3653 | sentadisc++; |
2e0fef85 JS |
3654 | vport->num_disc_nodes++; |
3655 | if (vport->num_disc_nodes >= | |
3de2a653 | 3656 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3657 | spin_lock_irq(shost->host_lock); |
3658 | vport->fc_flag |= FC_NLP_MORE; | |
3659 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3660 | break; |
dea3101e JB |
3661 | } |
3662 | } | |
3663 | } | |
3664 | if (sentadisc == 0) { | |
2e0fef85 JS |
3665 | spin_lock_irq(shost->host_lock); |
3666 | vport->fc_flag &= ~FC_NLP_MORE; | |
3667 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3668 | } |
2fe165b6 | 3669 | return sentadisc; |
dea3101e JB |
3670 | } |
3671 | ||
e59058c4 | 3672 | /** |
3621a710 | 3673 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
3674 | * @vport: pointer to a host virtual N_Port data structure. |
3675 | * | |
3676 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
3677 | * which are in node port recovery state, with a @vport. Each time an ELS | |
3678 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
3679 | * the per @vport number of discover count (num_disc_nodes) shall be | |
3680 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
3681 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
3682 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
3683 | * later pick up. On the other hand, after walking through all the ndlps with | |
3684 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
3685 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
3686 | * PLOGI need to be sent. | |
3687 | * | |
3688 | * Return code | |
3689 | * The number of N_Ports with plogi issued. | |
3690 | **/ | |
dea3101e | 3691 | int |
2e0fef85 | 3692 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 3693 | { |
2e0fef85 | 3694 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3695 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3696 | int sentplogi = 0; |
dea3101e | 3697 | |
2e0fef85 JS |
3698 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
3699 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
3700 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3701 | continue; | |
685f0bf7 JS |
3702 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3703 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3704 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
3705 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
3706 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
3707 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
3708 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 3709 | sentplogi++; |
2e0fef85 JS |
3710 | vport->num_disc_nodes++; |
3711 | if (vport->num_disc_nodes >= | |
3de2a653 | 3712 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3713 | spin_lock_irq(shost->host_lock); |
3714 | vport->fc_flag |= FC_NLP_MORE; | |
3715 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3716 | break; |
dea3101e JB |
3717 | } |
3718 | } | |
3719 | } | |
87af33fe JS |
3720 | if (sentplogi) { |
3721 | lpfc_set_disctmo(vport); | |
3722 | } | |
3723 | else { | |
2e0fef85 JS |
3724 | spin_lock_irq(shost->host_lock); |
3725 | vport->fc_flag &= ~FC_NLP_MORE; | |
3726 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3727 | } |
2fe165b6 | 3728 | return sentplogi; |
dea3101e JB |
3729 | } |
3730 | ||
e59058c4 | 3731 | /** |
3621a710 | 3732 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
3733 | * @vport: pointer to a host virtual N_Port data structure. |
3734 | * | |
3735 | * This routine cleans up any Registration State Change Notification | |
3736 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
3737 | * @vport together with the host_lock is used to prevent multiple thread | |
3738 | * trying to access the RSCN array on a same @vport at the same time. | |
3739 | **/ | |
92d7f7b0 | 3740 | void |
2e0fef85 | 3741 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 3742 | { |
2e0fef85 JS |
3743 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3744 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3745 | int i; |
3746 | ||
7f5f3d0d JS |
3747 | spin_lock_irq(shost->host_lock); |
3748 | if (vport->fc_rscn_flush) { | |
3749 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3750 | spin_unlock_irq(shost->host_lock); | |
3751 | return; | |
3752 | } | |
3753 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
3754 | vport->fc_rscn_flush = 1; | |
3755 | spin_unlock_irq(shost->host_lock); | |
3756 | ||
2e0fef85 | 3757 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 3758 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 3759 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 3760 | } |
2e0fef85 JS |
3761 | spin_lock_irq(shost->host_lock); |
3762 | vport->fc_rscn_id_cnt = 0; | |
3763 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
3764 | spin_unlock_irq(shost->host_lock); | |
3765 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
3766 | /* Indicate we are done walking this fc_rscn_id_list */ |
3767 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
3768 | } |
3769 | ||
e59058c4 | 3770 | /** |
3621a710 | 3771 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
3772 | * @vport: pointer to a host virtual N_Port data structure. |
3773 | * @did: remote destination port identifier. | |
3774 | * | |
3775 | * This routine checks whether there is any pending Registration State | |
3776 | * Configuration Notification (RSCN) to a @did on @vport. | |
3777 | * | |
3778 | * Return code | |
3779 | * None zero - The @did matched with a pending rscn | |
3780 | * 0 - not able to match @did with a pending rscn | |
3781 | **/ | |
dea3101e | 3782 | int |
2e0fef85 | 3783 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
3784 | { |
3785 | D_ID ns_did; | |
3786 | D_ID rscn_did; | |
dea3101e | 3787 | uint32_t *lp; |
92d7f7b0 | 3788 | uint32_t payload_len, i; |
7f5f3d0d | 3789 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
3790 | |
3791 | ns_did.un.word = did; | |
dea3101e JB |
3792 | |
3793 | /* Never match fabric nodes for RSCNs */ | |
3794 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 3795 | return 0; |
dea3101e JB |
3796 | |
3797 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 3798 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 3799 | return did; |
dea3101e | 3800 | |
7f5f3d0d JS |
3801 | spin_lock_irq(shost->host_lock); |
3802 | if (vport->fc_rscn_flush) { | |
3803 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3804 | spin_unlock_irq(shost->host_lock); | |
3805 | return 0; | |
3806 | } | |
3807 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
3808 | vport->fc_rscn_flush = 1; | |
3809 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 3810 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
3811 | lp = vport->fc_rscn_id_list[i]->virt; |
3812 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
3813 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 3814 | while (payload_len) { |
92d7f7b0 JS |
3815 | rscn_did.un.word = be32_to_cpu(*lp++); |
3816 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
3817 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
3818 | case RSCN_ADDRESS_FORMAT_PORT: | |
2e0fef85 | 3819 | if (ns_did.un.word == rscn_did.un.word) |
7f5f3d0d | 3820 | goto return_did_out; |
dea3101e | 3821 | break; |
eaf15d5b | 3822 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
3823 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
3824 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 3825 | goto return_did_out; |
dea3101e | 3826 | break; |
eaf15d5b | 3827 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 3828 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 3829 | goto return_did_out; |
dea3101e | 3830 | break; |
eaf15d5b | 3831 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 3832 | goto return_did_out; |
dea3101e JB |
3833 | } |
3834 | } | |
92d7f7b0 | 3835 | } |
7f5f3d0d JS |
3836 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
3837 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 3838 | return 0; |
7f5f3d0d JS |
3839 | return_did_out: |
3840 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
3841 | vport->fc_rscn_flush = 0; | |
3842 | return did; | |
dea3101e JB |
3843 | } |
3844 | ||
e59058c4 | 3845 | /** |
3621a710 | 3846 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
3847 | * @vport: pointer to a host virtual N_Port data structure. |
3848 | * | |
3849 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
3850 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
3851 | * State Change Notification). | |
3852 | * | |
3853 | * Return code | |
3854 | * 0 - Successful (currently alway return 0) | |
3855 | **/ | |
dea3101e | 3856 | static int |
2e0fef85 | 3857 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 3858 | { |
685f0bf7 | 3859 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 3860 | |
0d2b6b83 | 3861 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 3862 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 3863 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
3864 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
3865 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 3866 | continue; |
2e0fef85 | 3867 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
3868 | NLP_EVT_DEVICE_RECOVERY); |
3869 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 3870 | } |
c9f8735b | 3871 | return 0; |
dea3101e JB |
3872 | } |
3873 | ||
ddcc50f0 | 3874 | /** |
3621a710 | 3875 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
3876 | * @vport: pointer to a host virtual N_Port data structure. |
3877 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3878 | * | |
3879 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
3880 | * applications. | |
3881 | */ | |
3882 | static void | |
3883 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
3884 | struct lpfc_iocbq *cmdiocb) | |
3885 | { | |
3886 | struct lpfc_dmabuf *pcmd; | |
3887 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
3888 | uint32_t *payload_ptr; | |
3889 | uint32_t payload_len; | |
3890 | struct lpfc_rscn_event_header *rscn_event_data; | |
3891 | ||
3892 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
3893 | payload_ptr = (uint32_t *) pcmd->virt; | |
3894 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
3895 | ||
3896 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
3897 | payload_len, GFP_KERNEL); | |
3898 | if (!rscn_event_data) { | |
3899 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3900 | "0147 Failed to allocate memory for RSCN event\n"); | |
3901 | return; | |
3902 | } | |
3903 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
3904 | rscn_event_data->payload_length = payload_len; | |
3905 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
3906 | payload_len); | |
3907 | ||
3908 | fc_host_post_vendor_event(shost, | |
3909 | fc_get_event_number(), | |
3910 | sizeof(struct lpfc_els_event_header) + payload_len, | |
3911 | (char *)rscn_event_data, | |
3912 | LPFC_NL_VENDOR_ID); | |
3913 | ||
3914 | kfree(rscn_event_data); | |
3915 | } | |
3916 | ||
e59058c4 | 3917 | /** |
3621a710 | 3918 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
3919 | * @vport: pointer to a host virtual N_Port data structure. |
3920 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3921 | * @ndlp: pointer to a node-list data structure. | |
3922 | * | |
3923 | * This routine processes an unsolicited RSCN (Registration State Change | |
3924 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
3925 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
3926 | * discover state machine is about to begin discovery, it just accepts the | |
3927 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
3928 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
3929 | * RSCN and ignore processing it. If the state machine is in the recovery | |
3930 | * state, the fc_rscn_id_list of this @vport is walked and the | |
3931 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
3932 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
3933 | * routine is invoked to handle the RSCN event. | |
3934 | * | |
3935 | * Return code | |
3936 | * 0 - Just sent the acc response | |
3937 | * 1 - Sent the acc response and waited for name server completion | |
3938 | **/ | |
dea3101e | 3939 | static int |
2e0fef85 | 3940 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 3941 | struct lpfc_nodelist *ndlp) |
dea3101e | 3942 | { |
2e0fef85 JS |
3943 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3944 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 3945 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 3946 | uint32_t *lp, *datap; |
dea3101e | 3947 | IOCB_t *icmd; |
92d7f7b0 | 3948 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 3949 | int rscn_cnt; |
92d7f7b0 | 3950 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 3951 | int i; |
dea3101e JB |
3952 | |
3953 | icmd = &cmdiocb->iocb; | |
3954 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
3955 | lp = (uint32_t *) pcmd->virt; | |
3956 | ||
92d7f7b0 JS |
3957 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
3958 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 3959 | /* RSCN received */ |
e8b62011 JS |
3960 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
3961 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
3962 | vport->fc_flag, payload_len, *lp, |
3963 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
3964 | |
3965 | /* Send an RSCN event to the management application */ | |
3966 | lpfc_send_rscn_event(vport, cmdiocb); | |
3967 | ||
d2873e4c | 3968 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 3969 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
3970 | FCH_EVT_RSCN, lp[i]); |
3971 | ||
dea3101e JB |
3972 | /* If we are about to begin discovery, just ACC the RSCN. |
3973 | * Discovery processing will satisfy it. | |
3974 | */ | |
2e0fef85 | 3975 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
3976 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
3977 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
3978 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
3979 | ||
51ef4c26 | 3980 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 3981 | return 0; |
dea3101e JB |
3982 | } |
3983 | ||
92d7f7b0 JS |
3984 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
3985 | * just ACC and ignore it. | |
3986 | */ | |
3987 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 3988 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
3989 | i = payload_len; |
3990 | datap = lp; | |
3991 | while (i > 0) { | |
3992 | nportid = *datap++; | |
3993 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
3994 | i -= sizeof(uint32_t); | |
3995 | rscn_id++; | |
549e55cd JS |
3996 | if (lpfc_find_vport_by_did(phba, nportid)) |
3997 | hba_id++; | |
92d7f7b0 JS |
3998 | } |
3999 | if (rscn_id == hba_id) { | |
4000 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4001 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4002 | "0219 Ignore RSCN " |
e8b62011 JS |
4003 | "Data: x%x x%x x%x x%x\n", |
4004 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4005 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4006 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4007 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4008 | ndlp->nlp_DID, vport->port_state, | |
4009 | ndlp->nlp_flag); | |
4010 | ||
92d7f7b0 | 4011 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4012 | ndlp, NULL); |
92d7f7b0 JS |
4013 | return 0; |
4014 | } | |
4015 | } | |
4016 | ||
7f5f3d0d JS |
4017 | spin_lock_irq(shost->host_lock); |
4018 | if (vport->fc_rscn_flush) { | |
4019 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
4020 | spin_unlock_irq(shost->host_lock); | |
4021 | vport->fc_flag |= FC_RSCN_DISCOVERY; | |
58da1ffb JS |
4022 | /* Send back ACC */ |
4023 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4024 | return 0; |
4025 | } | |
4026 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4027 | vport->fc_rscn_flush = 1; | |
4028 | spin_unlock_irq(shost->host_lock); | |
4029 | /* Get the array count after sucessfully have the token */ | |
4030 | rscn_cnt = vport->fc_rscn_id_cnt; | |
dea3101e JB |
4031 | /* If we are already processing an RSCN, save the received |
4032 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4033 | */ | |
2e0fef85 | 4034 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4035 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4036 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4037 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4038 | ||
09372820 | 4039 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4040 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4041 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4042 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4043 | vport->fc_flag |= FC_RSCN_MODE; |
4044 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4045 | if (rscn_cnt) { |
4046 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4047 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4048 | } | |
4049 | if ((rscn_cnt) && | |
4050 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4051 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4052 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4053 | memcpy(((uint8_t *)cmd) + length, lp, |
4054 | payload_len); | |
4055 | } else { | |
4056 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4057 | vport->fc_rscn_id_cnt++; | |
4058 | /* If we zero, cmdiocb->context2, the calling | |
4059 | * routine will not try to free it. | |
4060 | */ | |
4061 | cmdiocb->context2 = NULL; | |
4062 | } | |
dea3101e | 4063 | /* Deferred RSCN */ |
e8b62011 JS |
4064 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4065 | "0235 Deferred RSCN " | |
4066 | "Data: x%x x%x x%x\n", | |
4067 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4068 | vport->port_state); | |
dea3101e | 4069 | } else { |
2e0fef85 JS |
4070 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4071 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4072 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4073 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4074 | "0234 ReDiscovery RSCN " | |
4075 | "Data: x%x x%x x%x\n", | |
4076 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4077 | vport->port_state); | |
dea3101e | 4078 | } |
7f5f3d0d JS |
4079 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4080 | vport->fc_rscn_flush = 0; | |
dea3101e | 4081 | /* Send back ACC */ |
51ef4c26 | 4082 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4083 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4084 | lpfc_rscn_recovery_check(vport); |
09372820 | 4085 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4086 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4087 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4088 | return 0; |
dea3101e | 4089 | } |
858c9f6c JS |
4090 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4091 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4092 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4093 | ||
2e0fef85 JS |
4094 | spin_lock_irq(shost->host_lock); |
4095 | vport->fc_flag |= FC_RSCN_MODE; | |
4096 | spin_unlock_irq(shost->host_lock); | |
4097 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4098 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4099 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4100 | /* |
4101 | * If we zero, cmdiocb->context2, the calling routine will | |
4102 | * not try to free it. | |
4103 | */ | |
4104 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4105 | lpfc_set_disctmo(vport); |
dea3101e | 4106 | /* Send back ACC */ |
51ef4c26 | 4107 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4108 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4109 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4110 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4111 | } |
4112 | ||
e59058c4 | 4113 | /** |
3621a710 | 4114 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4115 | * @vport: pointer to a host virtual N_Port data structure. |
4116 | * | |
4117 | * This routine handles the Registration State Configuration Notification | |
4118 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4119 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4120 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4121 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4122 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4123 | * RSCN activities with the @vport. | |
4124 | * | |
4125 | * Return code | |
4126 | * 0 - Cleaned up rscn on the @vport | |
4127 | * 1 - Wait for plogi to name server before proceed | |
4128 | **/ | |
dea3101e | 4129 | int |
2e0fef85 | 4130 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4131 | { |
4132 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4133 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4134 | |
92d7f7b0 JS |
4135 | /* Ignore RSCN if the port is being torn down. */ |
4136 | if (vport->load_flag & FC_UNLOADING) { | |
4137 | lpfc_els_flush_rscn(vport); | |
4138 | return 0; | |
4139 | } | |
4140 | ||
dea3101e | 4141 | /* Start timer for RSCN processing */ |
2e0fef85 | 4142 | lpfc_set_disctmo(vport); |
dea3101e JB |
4143 | |
4144 | /* RSCN processed */ | |
e8b62011 JS |
4145 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4146 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4147 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4148 | vport->port_state); | |
dea3101e JB |
4149 | |
4150 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4151 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4152 | vport->num_disc_nodes = 0; |
4153 | ||
2e0fef85 | 4154 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4155 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4156 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4157 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4158 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4159 | /* Wait for NameServer query cmpl before we can |
4160 | continue */ | |
c9f8735b | 4161 | return 1; |
dea3101e JB |
4162 | } else { |
4163 | /* If login to NameServer does not exist, issue one */ | |
4164 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4165 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4166 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4167 | /* Wait for NameServer login cmpl before we can |
4168 | continue */ | |
c9f8735b | 4169 | return 1; |
2e0fef85 | 4170 | |
e47c9093 JS |
4171 | if (ndlp) { |
4172 | ndlp = lpfc_enable_node(vport, ndlp, | |
4173 | NLP_STE_PLOGI_ISSUE); | |
4174 | if (!ndlp) { | |
4175 | lpfc_els_flush_rscn(vport); | |
4176 | return 0; | |
4177 | } | |
4178 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4179 | } else { |
e47c9093 JS |
4180 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4181 | if (!ndlp) { | |
4182 | lpfc_els_flush_rscn(vport); | |
4183 | return 0; | |
4184 | } | |
2e0fef85 | 4185 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4186 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4187 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4188 | } |
e47c9093 JS |
4189 | ndlp->nlp_type |= NLP_FABRIC; |
4190 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4191 | /* Wait for NameServer login cmpl before we can | |
4192 | * continue | |
4193 | */ | |
4194 | return 1; | |
dea3101e JB |
4195 | } |
4196 | ||
2e0fef85 | 4197 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4198 | return 0; |
dea3101e JB |
4199 | } |
4200 | ||
e59058c4 | 4201 | /** |
3621a710 | 4202 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4203 | * @vport: pointer to a host virtual N_Port data structure. |
4204 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4205 | * @ndlp: pointer to a node-list data structure. | |
4206 | * | |
4207 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4208 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4209 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4210 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4211 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4212 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4213 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4214 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4215 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4216 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4217 | * higher priority (as the winning port) and will initiate PLOGI and | |
4218 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4219 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4220 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4221 | * | |
4222 | * Return code | |
4223 | * 0 - Successfully processed the unsolicited flogi | |
4224 | * 1 - Failed to process the unsolicited flogi | |
4225 | **/ | |
dea3101e | 4226 | static int |
2e0fef85 | 4227 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4228 | struct lpfc_nodelist *ndlp) |
dea3101e | 4229 | { |
2e0fef85 JS |
4230 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4231 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4232 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4233 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4234 | IOCB_t *icmd = &cmdiocb->iocb; | |
4235 | struct serv_parm *sp; | |
4236 | LPFC_MBOXQ_t *mbox; | |
4237 | struct ls_rjt stat; | |
4238 | uint32_t cmd, did; | |
4239 | int rc; | |
4240 | ||
4241 | cmd = *lp++; | |
4242 | sp = (struct serv_parm *) lp; | |
4243 | ||
4244 | /* FLOGI received */ | |
4245 | ||
2e0fef85 | 4246 | lpfc_set_disctmo(vport); |
dea3101e JB |
4247 | |
4248 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
4249 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
4250 | did = icmd->un.elsreq64.remoteID; | |
4251 | ||
4252 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4253 | Loop Mode */ | |
e8b62011 JS |
4254 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4255 | "0113 An FLOGI ELS command x%x was " | |
4256 | "received from DID x%x in Loop Mode\n", | |
4257 | cmd, did); | |
c9f8735b | 4258 | return 1; |
dea3101e JB |
4259 | } |
4260 | ||
4261 | did = Fabric_DID; | |
4262 | ||
2e0fef85 | 4263 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) { |
dea3101e JB |
4264 | /* For a FLOGI we accept, then if our portname is greater |
4265 | * then the remote portname we initiate Nport login. | |
4266 | */ | |
4267 | ||
2e0fef85 | 4268 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4269 | sizeof(struct lpfc_name)); |
dea3101e JB |
4270 | |
4271 | if (!rc) { | |
2e0fef85 JS |
4272 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4273 | if (!mbox) | |
c9f8735b | 4274 | return 1; |
2e0fef85 | 4275 | |
dea3101e JB |
4276 | lpfc_linkdown(phba); |
4277 | lpfc_init_link(phba, mbox, | |
4278 | phba->cfg_topology, | |
4279 | phba->cfg_link_speed); | |
04c68496 | 4280 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4281 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4282 | mbox->vport = vport; |
0b727fea | 4283 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4284 | lpfc_set_loopback_flag(phba); |
dea3101e | 4285 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4286 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4287 | } |
c9f8735b | 4288 | return 1; |
2fe165b6 | 4289 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4290 | spin_lock_irq(shost->host_lock); |
4291 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4292 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4293 | } |
2e0fef85 JS |
4294 | spin_lock_irq(shost->host_lock); |
4295 | vport->fc_flag |= FC_PT2PT; | |
4296 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4297 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4298 | } else { |
4299 | /* Reject this request because invalid parameters */ | |
4300 | stat.un.b.lsRjtRsvd0 = 0; | |
4301 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4302 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4303 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4304 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4305 | NULL); | |
c9f8735b | 4306 | return 1; |
dea3101e JB |
4307 | } |
4308 | ||
4309 | /* Send back ACC */ | |
51ef4c26 | 4310 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4311 | |
c9f8735b | 4312 | return 0; |
dea3101e JB |
4313 | } |
4314 | ||
e59058c4 | 4315 | /** |
3621a710 | 4316 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4317 | * @vport: pointer to a host virtual N_Port data structure. |
4318 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4319 | * @ndlp: pointer to a node-list data structure. | |
4320 | * | |
4321 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4322 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4323 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4324 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4325 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4326 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4327 | * | |
4328 | * Return code | |
4329 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4330 | **/ | |
dea3101e | 4331 | static int |
2e0fef85 JS |
4332 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4333 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4334 | { |
4335 | struct lpfc_dmabuf *pcmd; | |
4336 | uint32_t *lp; | |
4337 | IOCB_t *icmd; | |
4338 | RNID *rn; | |
4339 | struct ls_rjt stat; | |
4340 | uint32_t cmd, did; | |
4341 | ||
4342 | icmd = &cmdiocb->iocb; | |
4343 | did = icmd->un.elsreq64.remoteID; | |
4344 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4345 | lp = (uint32_t *) pcmd->virt; | |
4346 | ||
4347 | cmd = *lp++; | |
4348 | rn = (RNID *) lp; | |
4349 | ||
4350 | /* RNID received */ | |
4351 | ||
4352 | switch (rn->Format) { | |
4353 | case 0: | |
4354 | case RNID_TOPOLOGY_DISC: | |
4355 | /* Send back ACC */ | |
2e0fef85 | 4356 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4357 | break; |
4358 | default: | |
4359 | /* Reject this request because format not supported */ | |
4360 | stat.un.b.lsRjtRsvd0 = 0; | |
4361 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4362 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4363 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4364 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4365 | NULL); | |
dea3101e | 4366 | } |
c9f8735b | 4367 | return 0; |
dea3101e JB |
4368 | } |
4369 | ||
e59058c4 | 4370 | /** |
3621a710 | 4371 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4372 | * @vport: pointer to a host virtual N_Port data structure. |
4373 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4374 | * @ndlp: pointer to a node-list data structure. | |
4375 | * | |
4376 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4377 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4378 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4379 | * | |
4380 | * Return code | |
4381 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4382 | **/ | |
dea3101e | 4383 | static int |
2e0fef85 JS |
4384 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4385 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4386 | { |
4387 | struct ls_rjt stat; | |
4388 | ||
4389 | /* For now, unconditionally reject this command */ | |
4390 | stat.un.b.lsRjtRsvd0 = 0; | |
4391 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4392 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4393 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4394 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4395 | return 0; |
4396 | } | |
4397 | ||
e59058c4 | 4398 | /** |
3621a710 | 4399 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
4400 | * @phba: pointer to lpfc hba data structure. |
4401 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4402 | * | |
4403 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4404 | * mailbox command. This callback function is to actually send the Accept | |
4405 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4406 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4407 | * mailbox command, constructs the RPS response with the link statistics | |
4408 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4409 | * response to the RPS. | |
4410 | * | |
4411 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4412 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4413 | * will be stored into the context1 field of the IOCB for the completion | |
4414 | * callback function to the RPS Accept Response ELS IOCB command. | |
4415 | * | |
4416 | **/ | |
082c0266 | 4417 | static void |
329f9bc7 | 4418 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 4419 | { |
7bb3b137 JW |
4420 | MAILBOX_t *mb; |
4421 | IOCB_t *icmd; | |
4422 | RPS_RSP *rps_rsp; | |
4423 | uint8_t *pcmd; | |
4424 | struct lpfc_iocbq *elsiocb; | |
4425 | struct lpfc_nodelist *ndlp; | |
4426 | uint16_t xri, status; | |
4427 | uint32_t cmdsize; | |
4428 | ||
04c68496 | 4429 | mb = &pmb->u.mb; |
7bb3b137 JW |
4430 | |
4431 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4432 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
4433 | pmb->context1 = NULL; |
4434 | pmb->context2 = NULL; | |
7bb3b137 JW |
4435 | |
4436 | if (mb->mbxStatus) { | |
329f9bc7 | 4437 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
4438 | return; |
4439 | } | |
4440 | ||
4441 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 4442 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
4443 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
4444 | lpfc_max_els_tries, ndlp, | |
4445 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
4446 | |
4447 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 4448 | lpfc_nlp_put(ndlp); |
fa4066b6 | 4449 | |
c9f8735b | 4450 | if (!elsiocb) |
7bb3b137 | 4451 | return; |
7bb3b137 JW |
4452 | |
4453 | icmd = &elsiocb->iocb; | |
4454 | icmd->ulpContext = xri; | |
4455 | ||
4456 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4457 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4458 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
4459 | rps_rsp = (RPS_RSP *)pcmd; |
4460 | ||
4461 | if (phba->fc_topology != TOPOLOGY_LOOP) | |
4462 | status = 0x10; | |
4463 | else | |
4464 | status = 0x8; | |
2e0fef85 | 4465 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
4466 | status |= 0x4; |
4467 | ||
4468 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
4469 | rps_rsp->portStatus = cpu_to_be16(status); |
4470 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4471 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4472 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4473 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4474 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4475 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 4476 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4477 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
4478 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
4479 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4480 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4481 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4482 | ndlp->nlp_rpi); | |
858c9f6c | 4483 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4484 | phba->fc_stat.elsXmitACC++; |
3772a991 | 4485 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 4486 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
4487 | return; |
4488 | } | |
4489 | ||
e59058c4 | 4490 | /** |
3621a710 | 4491 | * lpfc_els_rcv_rps - Process an unsolicited rps iocb |
e59058c4 JS |
4492 | * @vport: pointer to a host virtual N_Port data structure. |
4493 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4494 | * @ndlp: pointer to a node-list data structure. | |
4495 | * | |
4496 | * This routine processes Read Port Status (RPS) IOCB received as an | |
4497 | * ELS unsolicited event. It first checks the remote port state. If the | |
4498 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
4499 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
4500 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
4501 | * for reading the HBA link statistics. It is for the callback function, | |
4502 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
4503 | * to actually sending out RPS Accept (ACC) response. | |
4504 | * | |
4505 | * Return codes | |
4506 | * 0 - Successfully processed rps iocb (currently always return 0) | |
4507 | **/ | |
7bb3b137 | 4508 | static int |
2e0fef85 JS |
4509 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4510 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4511 | { |
2e0fef85 | 4512 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4513 | uint32_t *lp; |
7bb3b137 JW |
4514 | uint8_t flag; |
4515 | LPFC_MBOXQ_t *mbox; | |
4516 | struct lpfc_dmabuf *pcmd; | |
4517 | RPS *rps; | |
4518 | struct ls_rjt stat; | |
4519 | ||
2fe165b6 | 4520 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
4521 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
4522 | /* reject the unsolicited RPS request and done with it */ | |
4523 | goto reject_out; | |
7bb3b137 JW |
4524 | |
4525 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4526 | lp = (uint32_t *) pcmd->virt; | |
4527 | flag = (be32_to_cpu(*lp++) & 0xf); | |
4528 | rps = (RPS *) lp; | |
4529 | ||
4530 | if ((flag == 0) || | |
4531 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 4532 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 4533 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 4534 | |
92d7f7b0 JS |
4535 | printk("Fix me....\n"); |
4536 | dump_stack(); | |
2e0fef85 JS |
4537 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
4538 | if (mbox) { | |
7bb3b137 JW |
4539 | lpfc_read_lnk_stat(phba, mbox); |
4540 | mbox->context1 = | |
92d7f7b0 | 4541 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 4542 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 4543 | mbox->vport = vport; |
7bb3b137 | 4544 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 4545 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 4546 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
4547 | /* Mbox completion will send ELS Response */ |
4548 | return 0; | |
fa4066b6 JS |
4549 | /* Decrement reference count used for the failed mbox |
4550 | * command. | |
4551 | */ | |
329f9bc7 | 4552 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
4553 | mempool_free(mbox, phba->mbox_mem_pool); |
4554 | } | |
4555 | } | |
90160e01 JS |
4556 | |
4557 | reject_out: | |
4558 | /* issue rejection response */ | |
7bb3b137 JW |
4559 | stat.un.b.lsRjtRsvd0 = 0; |
4560 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4561 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4562 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4563 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4564 | return 0; |
4565 | } | |
4566 | ||
e59058c4 | 4567 | /** |
3621a710 | 4568 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
4569 | * @vport: pointer to a host virtual N_Port data structure. |
4570 | * @cmdsize: size of the ELS command. | |
4571 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4572 | * @ndlp: pointer to a node-list data structure. | |
4573 | * | |
4574 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
4575 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
4576 | * | |
4577 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4578 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4579 | * will be stored into the context1 field of the IOCB for the completion | |
4580 | * callback function to the RPL Accept Response ELS command. | |
4581 | * | |
4582 | * Return code | |
4583 | * 0 - Successfully issued ACC RPL ELS command | |
4584 | * 1 - Failed to issue ACC RPL ELS command | |
4585 | **/ | |
082c0266 | 4586 | static int |
2e0fef85 JS |
4587 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
4588 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 4589 | { |
2e0fef85 JS |
4590 | struct lpfc_hba *phba = vport->phba; |
4591 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
4592 | RPL_RSP rpl_rsp; |
4593 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 4594 | uint8_t *pcmd; |
dea3101e | 4595 | |
2e0fef85 JS |
4596 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4597 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 4598 | |
488d1469 | 4599 | if (!elsiocb) |
7bb3b137 | 4600 | return 1; |
488d1469 | 4601 | |
7bb3b137 JW |
4602 | icmd = &elsiocb->iocb; |
4603 | oldcmd = &oldiocb->iocb; | |
4604 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
4605 | ||
4606 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4607 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4608 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
4609 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
4610 | pcmd += sizeof(uint16_t); | |
4611 | ||
4612 | /* Setup the RPL ACC payload */ | |
4613 | rpl_rsp.listLen = be32_to_cpu(1); | |
4614 | rpl_rsp.index = 0; | |
4615 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
4616 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
4617 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 4618 | sizeof(struct lpfc_name)); |
7bb3b137 | 4619 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 4620 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4621 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4622 | "0120 Xmit ELS RPL ACC response tag x%x " | |
4623 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
4624 | "rpi x%x\n", | |
4625 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4626 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4627 | ndlp->nlp_rpi); | |
858c9f6c | 4628 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4629 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
4630 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
4631 | IOCB_ERROR) { | |
7bb3b137 JW |
4632 | lpfc_els_free_iocb(phba, elsiocb); |
4633 | return 1; | |
4634 | } | |
4635 | return 0; | |
4636 | } | |
4637 | ||
e59058c4 | 4638 | /** |
3621a710 | 4639 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
4640 | * @vport: pointer to a host virtual N_Port data structure. |
4641 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4642 | * @ndlp: pointer to a node-list data structure. | |
4643 | * | |
4644 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
4645 | * unsolicited event. It first checks the remote port state. If the remote | |
4646 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
4647 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
4648 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
4649 | * to accept the RPL. | |
4650 | * | |
4651 | * Return code | |
4652 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
4653 | **/ | |
7bb3b137 | 4654 | static int |
2e0fef85 JS |
4655 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4656 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4657 | { |
4658 | struct lpfc_dmabuf *pcmd; | |
4659 | uint32_t *lp; | |
4660 | uint32_t maxsize; | |
4661 | uint16_t cmdsize; | |
4662 | RPL *rpl; | |
4663 | struct ls_rjt stat; | |
4664 | ||
2fe165b6 JW |
4665 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
4666 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 4667 | /* issue rejection response */ |
7bb3b137 JW |
4668 | stat.un.b.lsRjtRsvd0 = 0; |
4669 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4670 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4671 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4672 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4673 | NULL); | |
90160e01 JS |
4674 | /* rejected the unsolicited RPL request and done with it */ |
4675 | return 0; | |
7bb3b137 JW |
4676 | } |
4677 | ||
dea3101e JB |
4678 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4679 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 4680 | rpl = (RPL *) (lp + 1); |
dea3101e | 4681 | |
7bb3b137 | 4682 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 4683 | |
7bb3b137 JW |
4684 | /* We support only one port */ |
4685 | if ((rpl->index == 0) && | |
4686 | ((maxsize == 0) || | |
4687 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
4688 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 4689 | } else { |
7bb3b137 JW |
4690 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
4691 | } | |
2e0fef85 | 4692 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
4693 | |
4694 | return 0; | |
4695 | } | |
4696 | ||
e59058c4 | 4697 | /** |
3621a710 | 4698 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
4699 | * @vport: pointer to a virtual N_Port data structure. |
4700 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4701 | * @ndlp: pointer to a node-list data structure. | |
4702 | * | |
4703 | * This routine processes Fibre Channel Address Resolution Protocol | |
4704 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
4705 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
4706 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
4707 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
4708 | * remote PortName is compared against the FC PortName stored in the @vport | |
4709 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
4710 | * compared against the FC NodeName stored in the @vport data structure. | |
4711 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
4712 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
4713 | * invoked to send out FARP Response to the remote node. Before sending the | |
4714 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
4715 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
4716 | * routine is invoked to log into the remote port first. | |
4717 | * | |
4718 | * Return code | |
4719 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
4720 | **/ | |
dea3101e | 4721 | static int |
2e0fef85 JS |
4722 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4723 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4724 | { |
4725 | struct lpfc_dmabuf *pcmd; | |
4726 | uint32_t *lp; | |
4727 | IOCB_t *icmd; | |
4728 | FARP *fp; | |
4729 | uint32_t cmd, cnt, did; | |
4730 | ||
4731 | icmd = &cmdiocb->iocb; | |
4732 | did = icmd->un.elsreq64.remoteID; | |
4733 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4734 | lp = (uint32_t *) pcmd->virt; | |
4735 | ||
4736 | cmd = *lp++; | |
4737 | fp = (FARP *) lp; | |
dea3101e | 4738 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
4739 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4740 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
4741 | /* We will only support match on WWPN or WWNN */ |
4742 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 4743 | return 0; |
dea3101e JB |
4744 | } |
4745 | ||
4746 | cnt = 0; | |
4747 | /* If this FARP command is searching for my portname */ | |
4748 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 4749 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 4750 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4751 | cnt = 1; |
4752 | } | |
4753 | ||
4754 | /* If this FARP command is searching for my nodename */ | |
4755 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 4756 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 4757 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4758 | cnt = 1; |
4759 | } | |
4760 | ||
4761 | if (cnt) { | |
4762 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
4763 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
4764 | /* Log back into the node before sending the FARP. */ | |
4765 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 4766 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4767 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 4768 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 4769 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
4770 | } |
4771 | ||
4772 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
4773 | if (fp->Rflags & FARP_REQUEST_FARPR) |
4774 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
4775 | } |
4776 | } | |
c9f8735b | 4777 | return 0; |
dea3101e JB |
4778 | } |
4779 | ||
e59058c4 | 4780 | /** |
3621a710 | 4781 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
4782 | * @vport: pointer to a host virtual N_Port data structure. |
4783 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4784 | * @ndlp: pointer to a node-list data structure. | |
4785 | * | |
4786 | * This routine processes Fibre Channel Address Resolution Protocol | |
4787 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
4788 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
4789 | * the FARP response request. | |
4790 | * | |
4791 | * Return code | |
4792 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
4793 | **/ | |
dea3101e | 4794 | static int |
2e0fef85 JS |
4795 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4796 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4797 | { |
4798 | struct lpfc_dmabuf *pcmd; | |
4799 | uint32_t *lp; | |
4800 | IOCB_t *icmd; | |
4801 | uint32_t cmd, did; | |
4802 | ||
4803 | icmd = &cmdiocb->iocb; | |
4804 | did = icmd->un.elsreq64.remoteID; | |
4805 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4806 | lp = (uint32_t *) pcmd->virt; | |
4807 | ||
4808 | cmd = *lp++; | |
4809 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
4810 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4811 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 4812 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 4813 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
4814 | |
4815 | return 0; | |
4816 | } | |
4817 | ||
e59058c4 | 4818 | /** |
3621a710 | 4819 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
4820 | * @vport: pointer to a host virtual N_Port data structure. |
4821 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4822 | * @fan_ndlp: pointer to a node-list data structure. | |
4823 | * | |
4824 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
4825 | * command received as an ELS unsolicited event. The FAN ELS command will | |
4826 | * only be processed on a physical port (i.e., the @vport represents the | |
4827 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
4828 | * compared against those in the phba data structure. If any of those is | |
4829 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
4830 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
4831 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
4832 | * is invoked to register login to the fabric. | |
4833 | * | |
4834 | * Return code | |
4835 | * 0 - Successfully processed fan iocb (currently always return 0). | |
4836 | **/ | |
dea3101e | 4837 | static int |
2e0fef85 JS |
4838 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4839 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 4840 | { |
0d2b6b83 | 4841 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4842 | uint32_t *lp; |
5024ab17 | 4843 | FAN *fp; |
dea3101e | 4844 | |
0d2b6b83 JS |
4845 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
4846 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
4847 | fp = (FAN *) ++lp; | |
5024ab17 | 4848 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
4849 | if ((vport == phba->pport) && |
4850 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 4851 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 4852 | sizeof(struct lpfc_name))) || |
5024ab17 | 4853 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
4854 | sizeof(struct lpfc_name)))) { |
4855 | /* This port has switched fabrics. FLOGI is required */ | |
2e0fef85 | 4856 | lpfc_initial_flogi(vport); |
0d2b6b83 JS |
4857 | } else { |
4858 | /* FAN verified - skip FLOGI */ | |
4859 | vport->fc_myDID = vport->fc_prevDID; | |
4860 | lpfc_issue_fabric_reglogin(vport); | |
5024ab17 | 4861 | } |
dea3101e | 4862 | } |
c9f8735b | 4863 | return 0; |
dea3101e JB |
4864 | } |
4865 | ||
e59058c4 | 4866 | /** |
3621a710 | 4867 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
4868 | * @ptr: holder for the timer function associated data. |
4869 | * | |
4870 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
4871 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
4872 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
4873 | * up the worker thread. It is for the worker thread to invoke the routine | |
4874 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
4875 | **/ | |
dea3101e JB |
4876 | void |
4877 | lpfc_els_timeout(unsigned long ptr) | |
4878 | { | |
2e0fef85 JS |
4879 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
4880 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 4881 | uint32_t tmo_posted; |
dea3101e JB |
4882 | unsigned long iflag; |
4883 | ||
2e0fef85 | 4884 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
4885 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
4886 | if (!tmo_posted) | |
2e0fef85 | 4887 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 4888 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 4889 | |
5e9d9b82 JS |
4890 | if (!tmo_posted) |
4891 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
4892 | return; |
4893 | } | |
4894 | ||
e59058c4 | 4895 | /** |
3621a710 | 4896 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
4897 | * @vport: pointer to a virtual N_Port data structure. |
4898 | * | |
4899 | * This routine is the actual handler function that processes an ELS timeout | |
4900 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
4901 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
4902 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
4903 | **/ | |
dea3101e | 4904 | void |
2e0fef85 | 4905 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 4906 | { |
2e0fef85 | 4907 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
4908 | struct lpfc_sli_ring *pring; |
4909 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
4910 | IOCB_t *cmd = NULL; | |
4911 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 4912 | uint32_t els_command = 0; |
dea3101e | 4913 | uint32_t timeout; |
2e0fef85 | 4914 | uint32_t remote_ID = 0xffffffff; |
dea3101e | 4915 | |
2e0fef85 | 4916 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
4917 | timeout = (uint32_t)(phba->fc_ratov << 1); |
4918 | ||
4919 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e JB |
4920 | |
4921 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
4922 | cmd = &piocb->iocb; | |
4923 | ||
2e0fef85 JS |
4924 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
4925 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
4926 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 4927 | continue; |
2e0fef85 JS |
4928 | |
4929 | if (piocb->vport != vport) | |
4930 | continue; | |
4931 | ||
dea3101e | 4932 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
4933 | if (pcmd) |
4934 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 4935 | |
92d7f7b0 JS |
4936 | if (els_command == ELS_CMD_FARP || |
4937 | els_command == ELS_CMD_FARPR || | |
4938 | els_command == ELS_CMD_FDISC) | |
4939 | continue; | |
4940 | ||
dea3101e | 4941 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 4942 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 4943 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 4944 | else |
dea3101e | 4945 | piocb->drvrTimeout = 0; |
dea3101e JB |
4946 | continue; |
4947 | } | |
4948 | ||
2e0fef85 JS |
4949 | remote_ID = 0xffffffff; |
4950 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 4951 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
4952 | else { |
4953 | struct lpfc_nodelist *ndlp; | |
4954 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 4955 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 4956 | remote_ID = ndlp->nlp_DID; |
dea3101e | 4957 | } |
e8b62011 JS |
4958 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4959 | "0127 ELS timeout Data: x%x x%x x%x " | |
4960 | "x%x\n", els_command, | |
4961 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
07951076 | 4962 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 4963 | } |
2e0fef85 | 4964 | spin_unlock_irq(&phba->hbalock); |
5a0e326d | 4965 | |
2e0fef85 JS |
4966 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
4967 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
4968 | } |
4969 | ||
e59058c4 | 4970 | /** |
3621a710 | 4971 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
4972 | * @vport: pointer to a host virtual N_Port data structure. |
4973 | * | |
4974 | * This routine is used to clean up all the outstanding ELS commands on a | |
4975 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
4976 | * routine. After that, it walks the ELS transmit queue to remove all the | |
4977 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
4978 | * the IOCBs with a non-NULL completion callback function, the callback | |
4979 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
4980 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
4981 | * callback function, the IOCB will simply be released. Finally, it walks | |
4982 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
4983 | * completion queue IOCB that is associated with the @vport and is not | |
4984 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
4985 | * part of the discovery state machine) out to HBA by invoking the | |
4986 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
4987 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
4988 | * the IOCBs are aborted when this function returns. | |
4989 | **/ | |
dea3101e | 4990 | void |
2e0fef85 | 4991 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 4992 | { |
2534ba75 | 4993 | LIST_HEAD(completions); |
2e0fef85 | 4994 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 4995 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
4996 | struct lpfc_iocbq *tmp_iocb, *piocb; |
4997 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
4998 | |
4999 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5000 | |
2e0fef85 | 5001 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
5002 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5003 | cmd = &piocb->iocb; | |
5004 | ||
5005 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5006 | continue; | |
5007 | } | |
5008 | ||
5009 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5010 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5011 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5012 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5013 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5014 | continue; |
dea3101e | 5015 | |
2e0fef85 JS |
5016 | if (piocb->vport != vport) |
5017 | continue; | |
5018 | ||
2534ba75 | 5019 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5020 | pring->txq_cnt--; |
dea3101e JB |
5021 | } |
5022 | ||
5023 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
5024 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5025 | continue; | |
5026 | } | |
dea3101e | 5027 | |
2e0fef85 JS |
5028 | if (piocb->vport != vport) |
5029 | continue; | |
5030 | ||
07951076 | 5031 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5032 | } |
2e0fef85 | 5033 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5034 | |
a257bf90 JS |
5035 | /* Cancell all the IOCBs from the completions list */ |
5036 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5037 | IOERR_SLI_ABORTED); | |
2534ba75 | 5038 | |
dea3101e JB |
5039 | return; |
5040 | } | |
5041 | ||
e59058c4 | 5042 | /** |
3621a710 | 5043 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
5044 | * @phba: pointer to lpfc hba data structure. |
5045 | * | |
5046 | * This routine is used to clean up all the outstanding ELS commands on a | |
5047 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5048 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5049 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5050 | * the IOCBs with the completion callback function associated, the callback | |
5051 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5052 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5053 | * callback function associated, the IOCB will simply be released. Finally, | |
5054 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5055 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5056 | * management plane IOCBs that are not part of the discovery state machine) | |
5057 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5058 | **/ | |
549e55cd JS |
5059 | void |
5060 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5061 | { | |
5062 | LIST_HEAD(completions); | |
5063 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5064 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5065 | IOCB_t *cmd = NULL; | |
5066 | ||
5067 | lpfc_fabric_abort_hba(phba); | |
5068 | spin_lock_irq(&phba->hbalock); | |
5069 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5070 | cmd = &piocb->iocb; | |
5071 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5072 | continue; | |
5073 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5074 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5075 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5076 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5077 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5078 | continue; | |
5079 | list_move_tail(&piocb->list, &completions); | |
5080 | pring->txq_cnt--; | |
5081 | } | |
5082 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5083 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5084 | continue; | |
5085 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5086 | } | |
5087 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
5088 | |
5089 | /* Cancel all the IOCBs from the completions list */ | |
5090 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5091 | IOERR_SLI_ABORTED); | |
5092 | ||
549e55cd JS |
5093 | return; |
5094 | } | |
5095 | ||
ea2151b4 | 5096 | /** |
3621a710 | 5097 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
5098 | * @phba: Pointer to hba context object. |
5099 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5100 | * @rspiocbp: Pointer to response iocb which reported error. | |
5101 | * | |
5102 | * This function sends an event when there is an ELS command | |
5103 | * failure. | |
5104 | **/ | |
5105 | void | |
5106 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5107 | struct lpfc_iocbq *cmdiocbp, | |
5108 | struct lpfc_iocbq *rspiocbp) | |
5109 | { | |
5110 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5111 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5112 | struct lpfc_lsrjt_event lsrjt_event; | |
5113 | struct lpfc_fabric_event_header fabric_event; | |
5114 | struct ls_rjt stat; | |
5115 | struct lpfc_nodelist *ndlp; | |
5116 | uint32_t *pcmd; | |
5117 | ||
5118 | ndlp = cmdiocbp->context1; | |
5119 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5120 | return; | |
5121 | ||
5122 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5123 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
5124 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
5125 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
5126 | sizeof(struct lpfc_name)); | |
5127 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
5128 | sizeof(struct lpfc_name)); | |
5129 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
5130 | cmdiocbp->context2)->virt); | |
5131 | lsrjt_event.command = *pcmd; | |
5132 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); | |
5133 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
5134 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
5135 | fc_host_post_vendor_event(shost, | |
5136 | fc_get_event_number(), | |
5137 | sizeof(lsrjt_event), | |
5138 | (char *)&lsrjt_event, | |
ddcc50f0 | 5139 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5140 | return; |
5141 | } | |
5142 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
5143 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
5144 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
5145 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
5146 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
5147 | else | |
5148 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
5149 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
5150 | sizeof(struct lpfc_name)); | |
5151 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
5152 | sizeof(struct lpfc_name)); | |
5153 | fc_host_post_vendor_event(shost, | |
5154 | fc_get_event_number(), | |
5155 | sizeof(fabric_event), | |
5156 | (char *)&fabric_event, | |
ddcc50f0 | 5157 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5158 | return; |
5159 | } | |
5160 | ||
5161 | } | |
5162 | ||
5163 | /** | |
3621a710 | 5164 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
5165 | * @vport: Pointer to vport object. |
5166 | * @ndlp: Pointer FC node object. | |
5167 | * @cmd: ELS command code. | |
5168 | * | |
5169 | * This function posts an event when there is an incoming | |
5170 | * unsolicited ELS command. | |
5171 | **/ | |
5172 | static void | |
5173 | lpfc_send_els_event(struct lpfc_vport *vport, | |
5174 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 5175 | uint32_t *payload) |
ea2151b4 | 5176 | { |
ddcc50f0 JS |
5177 | struct lpfc_els_event_header *els_data = NULL; |
5178 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
5179 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5180 | ||
ddcc50f0 JS |
5181 | if (*payload == ELS_CMD_LOGO) { |
5182 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
5183 | if (!logo_data) { | |
5184 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5185 | "0148 Failed to allocate memory " | |
5186 | "for LOGO event\n"); | |
5187 | return; | |
5188 | } | |
5189 | els_data = &logo_data->header; | |
5190 | } else { | |
5191 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
5192 | GFP_KERNEL); | |
5193 | if (!els_data) { | |
5194 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5195 | "0149 Failed to allocate memory " | |
5196 | "for ELS event\n"); | |
5197 | return; | |
5198 | } | |
5199 | } | |
5200 | els_data->event_type = FC_REG_ELS_EVENT; | |
5201 | switch (*payload) { | |
ea2151b4 | 5202 | case ELS_CMD_PLOGI: |
ddcc50f0 | 5203 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
5204 | break; |
5205 | case ELS_CMD_PRLO: | |
ddcc50f0 | 5206 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
5207 | break; |
5208 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
5209 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
5210 | break; | |
5211 | case ELS_CMD_LOGO: | |
5212 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
5213 | /* Copy the WWPN in the LOGO payload */ | |
5214 | memcpy(logo_data->logo_wwpn, &payload[2], | |
5215 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
5216 | break; |
5217 | default: | |
e916141c | 5218 | kfree(els_data); |
ea2151b4 JS |
5219 | return; |
5220 | } | |
ddcc50f0 JS |
5221 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
5222 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
5223 | if (*payload == ELS_CMD_LOGO) { | |
5224 | fc_host_post_vendor_event(shost, | |
5225 | fc_get_event_number(), | |
5226 | sizeof(struct lpfc_logo_event), | |
5227 | (char *)logo_data, | |
5228 | LPFC_NL_VENDOR_ID); | |
5229 | kfree(logo_data); | |
5230 | } else { | |
5231 | fc_host_post_vendor_event(shost, | |
5232 | fc_get_event_number(), | |
5233 | sizeof(struct lpfc_els_event_header), | |
5234 | (char *)els_data, | |
5235 | LPFC_NL_VENDOR_ID); | |
5236 | kfree(els_data); | |
5237 | } | |
ea2151b4 JS |
5238 | |
5239 | return; | |
5240 | } | |
5241 | ||
5242 | ||
e59058c4 | 5243 | /** |
3621a710 | 5244 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
5245 | * @phba: pointer to lpfc hba data structure. |
5246 | * @pring: pointer to a SLI ring. | |
5247 | * @vport: pointer to a host virtual N_Port data structure. | |
5248 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
5249 | * | |
5250 | * This routine is used for processing the IOCB associated with a unsolicited | |
5251 | * event. It first determines whether there is an existing ndlp that matches | |
5252 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
5253 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
5254 | * IOCB is then used to invoke the proper routine and to set up proper state | |
5255 | * of the discovery state machine. | |
5256 | **/ | |
ed957684 JS |
5257 | static void |
5258 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 5259 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 5260 | { |
87af33fe | 5261 | struct Scsi_Host *shost; |
dea3101e | 5262 | struct lpfc_nodelist *ndlp; |
dea3101e | 5263 | struct ls_rjt stat; |
92d7f7b0 | 5264 | uint32_t *payload; |
2e0fef85 | 5265 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 5266 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 5267 | |
e47c9093 | 5268 | if (!vport || !(elsiocb->context2)) |
dea3101e | 5269 | goto dropit; |
2e0fef85 | 5270 | |
dea3101e | 5271 | newnode = 0; |
92d7f7b0 JS |
5272 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
5273 | cmd = *payload; | |
ed957684 | 5274 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 5275 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 5276 | |
858c9f6c JS |
5277 | did = icmd->un.rcvels.remoteID; |
5278 | if (icmd->ulpStatus) { | |
5279 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5280 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
5281 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 5282 | goto dropit; |
858c9f6c | 5283 | } |
dea3101e JB |
5284 | |
5285 | /* Check to see if link went down during discovery */ | |
ed957684 | 5286 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 5287 | goto dropit; |
dea3101e | 5288 | |
92d7f7b0 JS |
5289 | /* Ignore traffic recevied during vport shutdown. */ |
5290 | if (vport->load_flag & FC_UNLOADING) | |
5291 | goto dropit; | |
5292 | ||
2e0fef85 | 5293 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 5294 | if (!ndlp) { |
dea3101e | 5295 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 5296 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 5297 | if (!ndlp) |
dea3101e | 5298 | goto dropit; |
dea3101e | 5299 | |
2e0fef85 | 5300 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 5301 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 5302 | newnode = 1; |
e47c9093 | 5303 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 5304 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
5305 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5306 | ndlp = lpfc_enable_node(vport, ndlp, | |
5307 | NLP_STE_UNUSED_NODE); | |
5308 | if (!ndlp) | |
5309 | goto dropit; | |
5310 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5311 | newnode = 1; | |
5312 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
5313 | ndlp->nlp_type |= NLP_FABRIC; | |
5314 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
5315 | /* This is similar to the new node path */ | |
5316 | ndlp = lpfc_nlp_get(ndlp); | |
5317 | if (!ndlp) | |
5318 | goto dropit; | |
5319 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5320 | newnode = 1; | |
87af33fe | 5321 | } |
dea3101e JB |
5322 | |
5323 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 5324 | |
329f9bc7 | 5325 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 5326 | elsiocb->vport = vport; |
dea3101e JB |
5327 | |
5328 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
5329 | cmd &= ELS_CMD_MASK; | |
5330 | } | |
5331 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5332 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5333 | "0112 ELS command x%x received from NPORT x%x " | |
5334 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
5335 | switch (cmd) { |
5336 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
5337 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5338 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
5339 | did, vport->port_state, ndlp->nlp_flag); | |
5340 | ||
dea3101e | 5341 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
5342 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
5343 | ||
ddcc50f0 | 5344 | lpfc_send_els_event(vport, ndlp, payload); |
858c9f6c | 5345 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
5346 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
5347 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
5348 | rjt_err = LSRJT_UNABLE_TPC; | |
5349 | break; | |
5350 | } | |
5351 | /* We get here, and drop thru, if we are PT2PT with | |
5352 | * another NPort and the other side has initiated | |
5353 | * the PLOGI before responding to our FLOGI. | |
5354 | */ | |
dea3101e | 5355 | } |
87af33fe JS |
5356 | |
5357 | shost = lpfc_shost_from_vport(vport); | |
5358 | spin_lock_irq(shost->host_lock); | |
5359 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
5360 | spin_unlock_irq(shost->host_lock); | |
5361 | ||
2e0fef85 JS |
5362 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5363 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 5364 | |
dea3101e JB |
5365 | break; |
5366 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
5367 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5368 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
5369 | did, vport->port_state, ndlp->nlp_flag); | |
5370 | ||
dea3101e | 5371 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 5372 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 5373 | if (newnode) |
98c9ea5c | 5374 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5375 | break; |
5376 | case ELS_CMD_LOGO: | |
858c9f6c JS |
5377 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5378 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
5379 | did, vport->port_state, ndlp->nlp_flag); | |
5380 | ||
dea3101e | 5381 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 5382 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 5383 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5384 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5385 | break; |
5386 | } | |
2e0fef85 | 5387 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
5388 | break; |
5389 | case ELS_CMD_PRLO: | |
858c9f6c JS |
5390 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5391 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
5392 | did, vport->port_state, ndlp->nlp_flag); | |
5393 | ||
dea3101e | 5394 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 5395 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 5396 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5397 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5398 | break; |
5399 | } | |
2e0fef85 | 5400 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
5401 | break; |
5402 | case ELS_CMD_RSCN: | |
5403 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 5404 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 5405 | if (newnode) |
98c9ea5c | 5406 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5407 | break; |
5408 | case ELS_CMD_ADISC: | |
858c9f6c JS |
5409 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5410 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
5411 | did, vport->port_state, ndlp->nlp_flag); | |
5412 | ||
ddcc50f0 | 5413 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 5414 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 5415 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5416 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5417 | break; |
5418 | } | |
2e0fef85 JS |
5419 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5420 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
5421 | break; |
5422 | case ELS_CMD_PDISC: | |
858c9f6c JS |
5423 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5424 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
5425 | did, vport->port_state, ndlp->nlp_flag); | |
5426 | ||
dea3101e | 5427 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 5428 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5429 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5430 | break; |
5431 | } | |
2e0fef85 JS |
5432 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5433 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
5434 | break; |
5435 | case ELS_CMD_FARPR: | |
858c9f6c JS |
5436 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5437 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
5438 | did, vport->port_state, ndlp->nlp_flag); | |
5439 | ||
dea3101e | 5440 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 5441 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
5442 | break; |
5443 | case ELS_CMD_FARP: | |
858c9f6c JS |
5444 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5445 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
5446 | did, vport->port_state, ndlp->nlp_flag); | |
5447 | ||
dea3101e | 5448 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 5449 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
5450 | break; |
5451 | case ELS_CMD_FAN: | |
858c9f6c JS |
5452 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5453 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
5454 | did, vport->port_state, ndlp->nlp_flag); | |
5455 | ||
dea3101e | 5456 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 5457 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 5458 | break; |
dea3101e | 5459 | case ELS_CMD_PRLI: |
858c9f6c JS |
5460 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5461 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
5462 | did, vport->port_state, ndlp->nlp_flag); | |
5463 | ||
dea3101e | 5464 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 5465 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5466 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5467 | break; |
5468 | } | |
2e0fef85 | 5469 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 5470 | break; |
7bb3b137 | 5471 | case ELS_CMD_LIRR: |
858c9f6c JS |
5472 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5473 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
5474 | did, vport->port_state, ndlp->nlp_flag); | |
5475 | ||
7bb3b137 | 5476 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 5477 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 5478 | if (newnode) |
98c9ea5c | 5479 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5480 | break; |
5481 | case ELS_CMD_RPS: | |
858c9f6c JS |
5482 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5483 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
5484 | did, vport->port_state, ndlp->nlp_flag); | |
5485 | ||
7bb3b137 | 5486 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 5487 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 5488 | if (newnode) |
98c9ea5c | 5489 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5490 | break; |
5491 | case ELS_CMD_RPL: | |
858c9f6c JS |
5492 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5493 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
5494 | did, vport->port_state, ndlp->nlp_flag); | |
5495 | ||
7bb3b137 | 5496 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 5497 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 5498 | if (newnode) |
98c9ea5c | 5499 | lpfc_nlp_put(ndlp); |
7bb3b137 | 5500 | break; |
dea3101e | 5501 | case ELS_CMD_RNID: |
858c9f6c JS |
5502 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5503 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
5504 | did, vport->port_state, ndlp->nlp_flag); | |
5505 | ||
dea3101e | 5506 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 5507 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 5508 | if (newnode) |
98c9ea5c | 5509 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5510 | break; |
5511 | default: | |
858c9f6c JS |
5512 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5513 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
5514 | cmd, did, vport->port_state); | |
5515 | ||
dea3101e | 5516 | /* Unsupported ELS command, reject */ |
858c9f6c | 5517 | rjt_err = LSRJT_INVALID_CMD; |
dea3101e JB |
5518 | |
5519 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5520 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5521 | "0115 Unknown ELS command x%x " | |
5522 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 5523 | if (newnode) |
98c9ea5c | 5524 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5525 | break; |
5526 | } | |
5527 | ||
5528 | /* check if need to LS_RJT received ELS cmd */ | |
5529 | if (rjt_err) { | |
92d7f7b0 | 5530 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 5531 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 5532 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
5533 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
5534 | NULL); | |
dea3101e JB |
5535 | } |
5536 | ||
d7c255b2 JS |
5537 | lpfc_nlp_put(elsiocb->context1); |
5538 | elsiocb->context1 = NULL; | |
ed957684 JS |
5539 | return; |
5540 | ||
5541 | dropit: | |
98c9ea5c JS |
5542 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
5543 | lpfc_printf_log(phba, KERN_ERR, LOG_ELS, | |
e8b62011 | 5544 | "(%d):0111 Dropping received ELS cmd " |
ed957684 | 5545 | "Data: x%x x%x x%x\n", |
98c9ea5c | 5546 | vport->vpi, icmd->ulpStatus, |
e8b62011 | 5547 | icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
5548 | phba->fc_stat.elsRcvDrop++; |
5549 | } | |
5550 | ||
e59058c4 | 5551 | /** |
3621a710 | 5552 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
5553 | * @phba: pointer to lpfc hba data structure. |
5554 | * @vpi: host virtual N_Port identifier. | |
5555 | * | |
5556 | * This routine finds a vport on a HBA (referred by @phba) through a | |
5557 | * @vpi. The function walks the HBA's vport list and returns the address | |
5558 | * of the vport with the matching @vpi. | |
5559 | * | |
5560 | * Return code | |
5561 | * NULL - No vport with the matching @vpi found | |
5562 | * Otherwise - Address to the vport with the matching @vpi. | |
5563 | **/ | |
92d7f7b0 JS |
5564 | static struct lpfc_vport * |
5565 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) | |
5566 | { | |
5567 | struct lpfc_vport *vport; | |
549e55cd | 5568 | unsigned long flags; |
92d7f7b0 | 5569 | |
549e55cd | 5570 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 5571 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
5572 | if (vport->vpi == vpi) { |
5573 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 5574 | return vport; |
549e55cd | 5575 | } |
92d7f7b0 | 5576 | } |
549e55cd | 5577 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
5578 | return NULL; |
5579 | } | |
ed957684 | 5580 | |
e59058c4 | 5581 | /** |
3621a710 | 5582 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
5583 | * @phba: pointer to lpfc hba data structure. |
5584 | * @pring: pointer to a SLI ring. | |
5585 | * @elsiocb: pointer to lpfc els iocb data structure. | |
5586 | * | |
5587 | * This routine is used to process an unsolicited event received from a SLI | |
5588 | * (Service Level Interface) ring. The actual processing of the data buffer | |
5589 | * associated with the unsolicited event is done by invoking the routine | |
5590 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
5591 | * SLI ring on which the unsolicited event was received. | |
5592 | **/ | |
ed957684 JS |
5593 | void |
5594 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
5595 | struct lpfc_iocbq *elsiocb) | |
5596 | { | |
5597 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 5598 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 5599 | dma_addr_t paddr; |
92d7f7b0 JS |
5600 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
5601 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
5602 | ||
d7c255b2 | 5603 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
5604 | elsiocb->context2 = NULL; |
5605 | elsiocb->context3 = NULL; | |
ed957684 | 5606 | |
92d7f7b0 JS |
5607 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
5608 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
5609 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
5610 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
5611 | phba->fc_stat.NoRcvBuf++; |
5612 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 5613 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 5614 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
5615 | return; |
5616 | } | |
5617 | ||
92d7f7b0 JS |
5618 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
5619 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
5620 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
5621 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
5622 | vport = phba->pport; | |
5623 | else { | |
5624 | uint16_t vpi = icmd->unsli3.rcvsli3.vpi; | |
5625 | vport = lpfc_find_vport_by_vpid(phba, vpi); | |
5626 | } | |
5627 | } | |
7f5f3d0d JS |
5628 | /* If there are no BDEs associated |
5629 | * with this IOCB, there is nothing to do. | |
5630 | */ | |
ed957684 JS |
5631 | if (icmd->ulpBdeCount == 0) |
5632 | return; | |
5633 | ||
7f5f3d0d JS |
5634 | /* type of ELS cmd is first 32bit word |
5635 | * in packet | |
5636 | */ | |
ed957684 | 5637 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 5638 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
5639 | } else { |
5640 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
5641 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
5642 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
5643 | paddr); | |
ed957684 JS |
5644 | } |
5645 | ||
92d7f7b0 JS |
5646 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
5647 | /* | |
5648 | * The different unsolicited event handlers would tell us | |
5649 | * if they are done with "mp" by setting context2 to NULL. | |
5650 | */ | |
dea3101e | 5651 | if (elsiocb->context2) { |
92d7f7b0 JS |
5652 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
5653 | elsiocb->context2 = NULL; | |
dea3101e | 5654 | } |
ed957684 JS |
5655 | |
5656 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 5657 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 5658 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
5659 | elsiocb->context2 = bdeBuf2; |
5660 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
5661 | /* free mp if we are done with it */ |
5662 | if (elsiocb->context2) { | |
92d7f7b0 JS |
5663 | lpfc_in_buf_free(phba, elsiocb->context2); |
5664 | elsiocb->context2 = NULL; | |
5665 | } | |
5666 | } | |
5667 | } | |
5668 | ||
e59058c4 | 5669 | /** |
3621a710 | 5670 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
5671 | * @phba: pointer to lpfc hba data structure. |
5672 | * @vport: pointer to a virtual N_Port data structure. | |
5673 | * | |
5674 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
5675 | * State Change Request (SCR) for a @vport. This routine will create an | |
5676 | * ndlp for the Name Server associated to the @vport if such node does | |
5677 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
5678 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
5679 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
5680 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
5681 | **/ | |
92d7f7b0 JS |
5682 | void |
5683 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
5684 | { | |
5685 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
5686 | ||
5687 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
5688 | if (!ndlp) { | |
5689 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
5690 | if (!ndlp) { | |
5691 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5692 | lpfc_disc_start(vport); | |
5693 | return; | |
5694 | } | |
5695 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5696 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5697 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
5698 | return; |
5699 | } | |
5700 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
5701 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5702 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
5703 | if (!ndlp) { | |
5704 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5705 | lpfc_disc_start(vport); | |
5706 | return; | |
5707 | } | |
5708 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5709 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5710 | "0348 NameServer login: node freed\n"); | |
5711 | return; | |
5712 | } | |
92d7f7b0 | 5713 | } |
58da1ffb | 5714 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
5715 | |
5716 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
5717 | ||
5718 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
5719 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5720 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5721 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
5722 | return; |
5723 | } | |
5724 | ||
3de2a653 | 5725 | if (vport->cfg_fdmi_on) { |
92d7f7b0 JS |
5726 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, |
5727 | GFP_KERNEL); | |
5728 | if (ndlp_fdmi) { | |
5729 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
5730 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
58da1ffb JS |
5731 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
5732 | NLP_STE_PLOGI_ISSUE); | |
92d7f7b0 JS |
5733 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, |
5734 | 0); | |
5735 | } | |
5736 | } | |
5737 | return; | |
5738 | } | |
5739 | ||
e59058c4 | 5740 | /** |
3621a710 | 5741 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
5742 | * @phba: pointer to lpfc hba data structure. |
5743 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5744 | * | |
5745 | * This routine is the completion callback function to register new vport | |
5746 | * mailbox command. If the new vport mailbox command completes successfully, | |
5747 | * the fabric registration login shall be performed on physical port (the | |
5748 | * new vport created is actually a physical port, with VPI 0) or the port | |
5749 | * login to Name Server for State Change Request (SCR) will be performed | |
5750 | * on virtual port (real virtual port, with VPI greater than 0). | |
5751 | **/ | |
92d7f7b0 JS |
5752 | static void |
5753 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5754 | { | |
5755 | struct lpfc_vport *vport = pmb->vport; | |
5756 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5757 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 5758 | MAILBOX_t *mb = &pmb->u.mb; |
92d7f7b0 | 5759 | |
09372820 | 5760 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5761 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5762 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
5763 | |
5764 | if (mb->mbxStatus) { | |
e8b62011 JS |
5765 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5766 | "0915 Register VPI failed: 0x%x\n", | |
5767 | mb->mbxStatus); | |
92d7f7b0 JS |
5768 | |
5769 | switch (mb->mbxStatus) { | |
5770 | case 0x11: /* unsupported feature */ | |
5771 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 5772 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
5773 | /* giving up on vport registration */ |
5774 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5775 | spin_lock_irq(shost->host_lock); | |
5776 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
5777 | spin_unlock_irq(shost->host_lock); | |
5778 | lpfc_can_disctmo(vport); | |
5779 | break; | |
5780 | default: | |
5781 | /* Try to recover from this error */ | |
5782 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 5783 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5784 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5785 | spin_unlock_irq(shost->host_lock); |
7f5f3d0d JS |
5786 | if (vport->port_type == LPFC_PHYSICAL_PORT) |
5787 | lpfc_initial_flogi(vport); | |
5788 | else | |
5789 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
5790 | break; |
5791 | } | |
5792 | ||
5793 | } else { | |
5794 | if (vport == phba->pport) | |
5795 | lpfc_issue_fabric_reglogin(vport); | |
5796 | else | |
5797 | lpfc_do_scr_ns_plogi(phba, vport); | |
5798 | } | |
fa4066b6 JS |
5799 | |
5800 | /* Now, we decrement the ndlp reference count held for this | |
5801 | * callback function | |
5802 | */ | |
5803 | lpfc_nlp_put(ndlp); | |
5804 | ||
92d7f7b0 JS |
5805 | mempool_free(pmb, phba->mbox_mem_pool); |
5806 | return; | |
5807 | } | |
5808 | ||
e59058c4 | 5809 | /** |
3621a710 | 5810 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
5811 | * @phba: pointer to lpfc hba data structure. |
5812 | * @vport: pointer to a host virtual N_Port data structure. | |
5813 | * @ndlp: pointer to a node-list data structure. | |
5814 | * | |
5815 | * This routine registers the @vport as a new virtual port with a HBA. | |
5816 | * It is done through a registering vpi mailbox command. | |
5817 | **/ | |
a6ababd2 | 5818 | static void |
92d7f7b0 JS |
5819 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
5820 | struct lpfc_nodelist *ndlp) | |
5821 | { | |
09372820 | 5822 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
5823 | LPFC_MBOXQ_t *mbox; |
5824 | ||
5825 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
5826 | if (mbox) { | |
5827 | lpfc_reg_vpi(phba, vport->vpi, vport->fc_myDID, mbox); | |
5828 | mbox->vport = vport; | |
5829 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5830 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 5831 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 5832 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
5833 | /* mailbox command not success, decrement ndlp |
5834 | * reference count for this command | |
5835 | */ | |
5836 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 5837 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 5838 | |
e8b62011 JS |
5839 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5840 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 5841 | goto mbox_err_exit; |
92d7f7b0 JS |
5842 | } |
5843 | } else { | |
e8b62011 JS |
5844 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5845 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 5846 | goto mbox_err_exit; |
92d7f7b0 | 5847 | } |
fa4066b6 JS |
5848 | return; |
5849 | ||
5850 | mbox_err_exit: | |
5851 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5852 | spin_lock_irq(shost->host_lock); | |
5853 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
5854 | spin_unlock_irq(shost->host_lock); | |
5855 | return; | |
92d7f7b0 JS |
5856 | } |
5857 | ||
e59058c4 | 5858 | /** |
3621a710 | 5859 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
5860 | * @phba: pointer to lpfc hba data structure. |
5861 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
5862 | * @rspiocb: pointer to lpfc response iocb data structure. | |
5863 | * | |
5864 | * This routine is the completion callback function to a Fabric Discover | |
5865 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
5866 | * single threaded, each FDISC completion callback function will reset | |
5867 | * the discovery timer for all vports such that the timers will not get | |
5868 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
5869 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
5870 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
5871 | * assigned to the vport has been changed with the completion of the FDISC | |
5872 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
5873 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
5874 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
5875 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
5876 | * Server for State Change Request (SCR). | |
5877 | **/ | |
92d7f7b0 JS |
5878 | static void |
5879 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
5880 | struct lpfc_iocbq *rspiocb) | |
5881 | { | |
5882 | struct lpfc_vport *vport = cmdiocb->vport; | |
5883 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5884 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
5885 | struct lpfc_nodelist *np; | |
5886 | struct lpfc_nodelist *next_np; | |
5887 | IOCB_t *irsp = &rspiocb->iocb; | |
5888 | struct lpfc_iocbq *piocb; | |
5889 | ||
e8b62011 JS |
5890 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5891 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
5892 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
5893 | vport->fc_prevDID); | |
92d7f7b0 JS |
5894 | /* Since all FDISCs are being single threaded, we |
5895 | * must reset the discovery timer for ALL vports | |
5896 | * waiting to send FDISC when one completes. | |
5897 | */ | |
5898 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
5899 | lpfc_set_disctmo(piocb->vport); | |
5900 | } | |
5901 | ||
858c9f6c JS |
5902 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
5903 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
5904 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
5905 | ||
92d7f7b0 JS |
5906 | if (irsp->ulpStatus) { |
5907 | /* Check for retry */ | |
5908 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
5909 | goto out; | |
92d7f7b0 | 5910 | /* FDISC failed */ |
e8b62011 | 5911 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 5912 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 5913 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
5914 | goto fdisc_failed; |
5915 | } | |
92d7f7b0 JS |
5916 | if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING) |
5917 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
92d7f7b0 JS |
5918 | lpfc_nlp_put(ndlp); |
5919 | /* giving up on FDISC. Cancel discovery timer */ | |
5920 | lpfc_can_disctmo(vport); | |
d7c255b2 JS |
5921 | spin_lock_irq(shost->host_lock); |
5922 | vport->fc_flag |= FC_FABRIC; | |
5923 | if (vport->phba->fc_topology == TOPOLOGY_LOOP) | |
5924 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
5925 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 5926 | |
d7c255b2 JS |
5927 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
5928 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
5929 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
5930 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
5931 | /* If our NportID changed, we need to ensure all | |
5932 | * remaining NPORTs get unreg_login'ed so we can | |
5933 | * issue unreg_vpi. | |
5934 | */ | |
5935 | list_for_each_entry_safe(np, next_np, | |
5936 | &vport->fc_nodes, nlp_listp) { | |
5937 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
5938 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
5939 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
5940 | continue; | |
09372820 | 5941 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 5942 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 5943 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 5944 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 5945 | } |
d7c255b2 JS |
5946 | lpfc_mbx_unreg_vpi(vport); |
5947 | spin_lock_irq(shost->host_lock); | |
5948 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
5949 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
5950 | } |
5951 | ||
d7c255b2 JS |
5952 | if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) |
5953 | lpfc_register_new_vport(phba, vport, ndlp); | |
5954 | else | |
5955 | lpfc_do_scr_ns_plogi(phba, vport); | |
5956 | goto out; | |
5957 | fdisc_failed: | |
5958 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5959 | /* Cancel discovery timer */ | |
5960 | lpfc_can_disctmo(vport); | |
5961 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
5962 | out: |
5963 | lpfc_els_free_iocb(phba, cmdiocb); | |
5964 | } | |
5965 | ||
e59058c4 | 5966 | /** |
3621a710 | 5967 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
5968 | * @vport: pointer to a virtual N_Port data structure. |
5969 | * @ndlp: pointer to a node-list data structure. | |
5970 | * @retry: number of retries to the command IOCB. | |
5971 | * | |
5972 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
5973 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
5974 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
5975 | * IOCB will be sent off HBA at any given time. | |
5976 | * | |
5977 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
5978 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
5979 | * will be stored into the context1 field of the IOCB for the completion | |
5980 | * callback function to the FDISC ELS command. | |
5981 | * | |
5982 | * Return code | |
5983 | * 0 - Successfully issued fdisc iocb command | |
5984 | * 1 - Failed to issue fdisc iocb command | |
5985 | **/ | |
a6ababd2 | 5986 | static int |
92d7f7b0 JS |
5987 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
5988 | uint8_t retry) | |
5989 | { | |
5990 | struct lpfc_hba *phba = vport->phba; | |
5991 | IOCB_t *icmd; | |
5992 | struct lpfc_iocbq *elsiocb; | |
5993 | struct serv_parm *sp; | |
5994 | uint8_t *pcmd; | |
5995 | uint16_t cmdsize; | |
5996 | int did = ndlp->nlp_DID; | |
5997 | int rc; | |
92d7f7b0 JS |
5998 | |
5999 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); | |
6000 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
6001 | ELS_CMD_FDISC); | |
6002 | if (!elsiocb) { | |
92d7f7b0 | 6003 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6004 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6005 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
6006 | return 1; |
6007 | } | |
6008 | ||
6009 | icmd = &elsiocb->iocb; | |
6010 | icmd->un.elsreq64.myID = 0; | |
6011 | icmd->un.elsreq64.fl = 1; | |
6012 | ||
6013 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
6014 | icmd->ulpCt_h = 1; | |
6015 | icmd->ulpCt_l = 0; | |
6016 | ||
6017 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6018 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
6019 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
6020 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
6021 | sp = (struct serv_parm *) pcmd; | |
6022 | /* Setup CSPs accordingly for Fabric */ | |
6023 | sp->cmn.e_d_tov = 0; | |
6024 | sp->cmn.w2.r_a_tov = 0; | |
6025 | sp->cls1.classValid = 0; | |
6026 | sp->cls2.seqDelivery = 1; | |
6027 | sp->cls3.seqDelivery = 1; | |
6028 | ||
6029 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
6030 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
6031 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
6032 | pcmd += sizeof(uint32_t); /* Port Name */ | |
6033 | memcpy(pcmd, &vport->fc_portname, 8); | |
6034 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6035 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6036 | memcpy(pcmd, &vport->fc_nodename, 8); | |
6037 | ||
6038 | lpfc_set_disctmo(vport); | |
6039 | ||
6040 | phba->fc_stat.elsXmitFDISC++; | |
6041 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
6042 | ||
858c9f6c JS |
6043 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6044 | "Issue FDISC: did:x%x", | |
6045 | did, 0, 0); | |
6046 | ||
92d7f7b0 JS |
6047 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
6048 | if (rc == IOCB_ERROR) { | |
6049 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 6050 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6051 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6052 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
6053 | return 1; |
6054 | } | |
6055 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
6056 | vport->port_state = LPFC_FDISC; | |
6057 | return 0; | |
6058 | } | |
6059 | ||
e59058c4 | 6060 | /** |
3621a710 | 6061 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
6062 | * @phba: pointer to lpfc hba data structure. |
6063 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6064 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6065 | * | |
6066 | * This routine is the completion callback function to the issuing of a LOGO | |
6067 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
6068 | * reference count held on ndlp for this completion function, indicating that | |
6069 | * the reference to the ndlp is no long needed. Note that the | |
6070 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
6071 | * callback function and an additional explicit ndlp reference decrementation | |
6072 | * will trigger the actual release of the ndlp. | |
6073 | **/ | |
92d7f7b0 JS |
6074 | static void |
6075 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6076 | struct lpfc_iocbq *rspiocb) | |
6077 | { | |
6078 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 6079 | IOCB_t *irsp; |
e47c9093 JS |
6080 | struct lpfc_nodelist *ndlp; |
6081 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
6082 | |
6083 | irsp = &rspiocb->iocb; | |
6084 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
6085 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
6086 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
6087 | |
6088 | lpfc_els_free_iocb(phba, cmdiocb); | |
6089 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
6090 | |
6091 | /* Trigger the release of the ndlp after logo */ | |
6092 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6093 | } |
6094 | ||
e59058c4 | 6095 | /** |
3621a710 | 6096 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
6097 | * @vport: pointer to a virtual N_Port data structure. |
6098 | * @ndlp: pointer to a node-list data structure. | |
6099 | * | |
6100 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
6101 | * | |
6102 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6103 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6104 | * will be stored into the context1 field of the IOCB for the completion | |
6105 | * callback function to the LOGO ELS command. | |
6106 | * | |
6107 | * Return codes | |
6108 | * 0 - Successfully issued logo off the @vport | |
6109 | * 1 - Failed to issue logo off the @vport | |
6110 | **/ | |
92d7f7b0 JS |
6111 | int |
6112 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
6113 | { | |
6114 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6115 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
6116 | IOCB_t *icmd; |
6117 | struct lpfc_iocbq *elsiocb; | |
6118 | uint8_t *pcmd; | |
6119 | uint16_t cmdsize; | |
6120 | ||
6121 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
6122 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
6123 | ELS_CMD_LOGO); | |
6124 | if (!elsiocb) | |
6125 | return 1; | |
6126 | ||
6127 | icmd = &elsiocb->iocb; | |
6128 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6129 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
6130 | pcmd += sizeof(uint32_t); | |
6131 | ||
6132 | /* Fill in LOGO payload */ | |
6133 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
6134 | pcmd += sizeof(uint32_t); | |
6135 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6136 | ||
858c9f6c JS |
6137 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6138 | "Issue LOGO npiv did:x%x flg:x%x", | |
6139 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
6140 | ||
92d7f7b0 JS |
6141 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
6142 | spin_lock_irq(shost->host_lock); | |
6143 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
6144 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
6145 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
6146 | IOCB_ERROR) { | |
92d7f7b0 JS |
6147 | spin_lock_irq(shost->host_lock); |
6148 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
6149 | spin_unlock_irq(shost->host_lock); | |
6150 | lpfc_els_free_iocb(phba, elsiocb); | |
6151 | return 1; | |
6152 | } | |
6153 | return 0; | |
6154 | } | |
6155 | ||
e59058c4 | 6156 | /** |
3621a710 | 6157 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
6158 | * @ptr: holder for the timer function associated data. |
6159 | * | |
6160 | * This routine is invoked by the fabric iocb block timer after | |
6161 | * timeout. It posts the fabric iocb block timeout event by setting the | |
6162 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
6163 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
6164 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
6165 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
6166 | **/ | |
92d7f7b0 JS |
6167 | void |
6168 | lpfc_fabric_block_timeout(unsigned long ptr) | |
6169 | { | |
6170 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
6171 | unsigned long iflags; | |
6172 | uint32_t tmo_posted; | |
5e9d9b82 | 6173 | |
92d7f7b0 JS |
6174 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
6175 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
6176 | if (!tmo_posted) | |
6177 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
6178 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
6179 | ||
5e9d9b82 JS |
6180 | if (!tmo_posted) |
6181 | lpfc_worker_wake_up(phba); | |
6182 | return; | |
92d7f7b0 JS |
6183 | } |
6184 | ||
e59058c4 | 6185 | /** |
3621a710 | 6186 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
6187 | * @phba: pointer to lpfc hba data structure. |
6188 | * | |
6189 | * This routine issues one fabric iocb from the driver internal list to | |
6190 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
6191 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
6192 | * remove one pending fabric iocb from the driver internal list and invokes | |
6193 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
6194 | **/ | |
92d7f7b0 JS |
6195 | static void |
6196 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
6197 | { | |
6198 | struct lpfc_iocbq *iocb; | |
6199 | unsigned long iflags; | |
6200 | int ret; | |
92d7f7b0 JS |
6201 | IOCB_t *cmd; |
6202 | ||
6203 | repeat: | |
6204 | iocb = NULL; | |
6205 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 6206 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
6207 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
6208 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
6209 | list); | |
6210 | if (iocb) | |
7f5f3d0d | 6211 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
6212 | atomic_inc(&phba->fabric_iocb_count); |
6213 | } | |
6214 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6215 | if (iocb) { | |
6216 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6217 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6218 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6219 | ||
858c9f6c JS |
6220 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6221 | "Fabric sched1: ste:x%x", | |
6222 | iocb->vport->port_state, 0, 0); | |
6223 | ||
3772a991 | 6224 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
6225 | |
6226 | if (ret == IOCB_ERROR) { | |
6227 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6228 | iocb->fabric_iocb_cmpl = NULL; | |
6229 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6230 | cmd = &iocb->iocb; | |
6231 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6232 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6233 | iocb->iocb_cmpl(phba, iocb, iocb); | |
6234 | ||
6235 | atomic_dec(&phba->fabric_iocb_count); | |
6236 | goto repeat; | |
6237 | } | |
6238 | } | |
6239 | ||
6240 | return; | |
6241 | } | |
6242 | ||
e59058c4 | 6243 | /** |
3621a710 | 6244 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
6245 | * @phba: pointer to lpfc hba data structure. |
6246 | * | |
6247 | * This routine unblocks the issuing fabric iocb command. The function | |
6248 | * will clear the fabric iocb block bit and then invoke the routine | |
6249 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
6250 | * from the driver internal fabric iocb list. | |
6251 | **/ | |
92d7f7b0 JS |
6252 | void |
6253 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
6254 | { | |
6255 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6256 | ||
6257 | lpfc_resume_fabric_iocbs(phba); | |
6258 | return; | |
6259 | } | |
6260 | ||
e59058c4 | 6261 | /** |
3621a710 | 6262 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
6263 | * @phba: pointer to lpfc hba data structure. |
6264 | * | |
6265 | * This routine blocks the issuing fabric iocb for a specified amount of | |
6266 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
6267 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
6268 | * fabric iocb will be issued out of the HBA. | |
6269 | **/ | |
92d7f7b0 JS |
6270 | static void |
6271 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
6272 | { | |
6273 | int blocked; | |
6274 | ||
6275 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 6276 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
6277 | if (!blocked) |
6278 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
6279 | ||
6280 | return; | |
6281 | } | |
6282 | ||
e59058c4 | 6283 | /** |
3621a710 | 6284 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
6285 | * @phba: pointer to lpfc hba data structure. |
6286 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6287 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6288 | * | |
6289 | * This routine is the callback function that is put to the fabric iocb's | |
6290 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
6291 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
6292 | * function first restores and invokes the original iocb's callback function | |
6293 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
6294 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
6295 | **/ | |
92d7f7b0 JS |
6296 | static void |
6297 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6298 | struct lpfc_iocbq *rspiocb) | |
6299 | { | |
6300 | struct ls_rjt stat; | |
6301 | ||
6302 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
6303 | BUG(); | |
6304 | ||
6305 | switch (rspiocb->iocb.ulpStatus) { | |
6306 | case IOSTAT_NPORT_RJT: | |
6307 | case IOSTAT_FABRIC_RJT: | |
6308 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
6309 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 6310 | } |
92d7f7b0 JS |
6311 | break; |
6312 | ||
6313 | case IOSTAT_NPORT_BSY: | |
6314 | case IOSTAT_FABRIC_BSY: | |
6315 | lpfc_block_fabric_iocbs(phba); | |
6316 | break; | |
6317 | ||
6318 | case IOSTAT_LS_RJT: | |
6319 | stat.un.lsRjtError = | |
6320 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
6321 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
6322 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
6323 | lpfc_block_fabric_iocbs(phba); | |
6324 | break; | |
6325 | } | |
6326 | ||
6327 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
6328 | BUG(); | |
6329 | ||
6330 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
6331 | cmdiocb->fabric_iocb_cmpl = NULL; | |
6332 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6333 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
6334 | ||
6335 | atomic_dec(&phba->fabric_iocb_count); | |
6336 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
6337 | /* Post any pending iocbs to HBA */ |
6338 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
6339 | } |
6340 | } | |
6341 | ||
e59058c4 | 6342 | /** |
3621a710 | 6343 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
6344 | * @phba: pointer to lpfc hba data structure. |
6345 | * @iocb: pointer to lpfc command iocb data structure. | |
6346 | * | |
6347 | * This routine is used as the top-level API for issuing a fabric iocb command | |
6348 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
6349 | * function makes sure that only one fabric bound iocb will be outstanding at | |
6350 | * any given time. As such, this function will first check to see whether there | |
6351 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
6352 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
6353 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
6354 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
6355 | * | |
6356 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
6357 | * order. The problem is caused by the construction of the "ready" boolen does | |
6358 | * not include the condition that the internal fabric IOCB list is empty. As | |
6359 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
6360 | * ahead of the fabric IOCBs in the internal list. | |
6361 | * | |
6362 | * Return code | |
6363 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
6364 | * IOCB_ERROR - failed to issue fabric iocb | |
6365 | **/ | |
a6ababd2 | 6366 | static int |
92d7f7b0 JS |
6367 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
6368 | { | |
6369 | unsigned long iflags; | |
92d7f7b0 JS |
6370 | int ready; |
6371 | int ret; | |
6372 | ||
6373 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
6374 | BUG(); | |
6375 | ||
6376 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6377 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
6378 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6379 | ||
7f5f3d0d JS |
6380 | if (ready) |
6381 | /* Increment fabric iocb count to hold the position */ | |
6382 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
6383 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
6384 | if (ready) { | |
6385 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6386 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6387 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6388 | ||
858c9f6c JS |
6389 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6390 | "Fabric sched2: ste:x%x", | |
6391 | iocb->vport->port_state, 0, 0); | |
6392 | ||
3772a991 | 6393 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
6394 | |
6395 | if (ret == IOCB_ERROR) { | |
6396 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6397 | iocb->fabric_iocb_cmpl = NULL; | |
6398 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6399 | atomic_dec(&phba->fabric_iocb_count); | |
6400 | } | |
6401 | } else { | |
6402 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6403 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
6404 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6405 | ret = IOCB_SUCCESS; | |
6406 | } | |
6407 | return ret; | |
6408 | } | |
6409 | ||
e59058c4 | 6410 | /** |
3621a710 | 6411 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
6412 | * @vport: pointer to a virtual N_Port data structure. |
6413 | * | |
6414 | * This routine aborts all the IOCBs associated with a @vport from the | |
6415 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6416 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6417 | * list, removes each IOCB associated with the @vport off the list, set the | |
6418 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6419 | * associated with the IOCB. | |
6420 | **/ | |
a6ababd2 | 6421 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
6422 | { |
6423 | LIST_HEAD(completions); | |
6424 | struct lpfc_hba *phba = vport->phba; | |
6425 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
6426 | |
6427 | spin_lock_irq(&phba->hbalock); | |
6428 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6429 | list) { | |
6430 | ||
6431 | if (piocb->vport != vport) | |
6432 | continue; | |
6433 | ||
6434 | list_move_tail(&piocb->list, &completions); | |
6435 | } | |
6436 | spin_unlock_irq(&phba->hbalock); | |
6437 | ||
a257bf90 JS |
6438 | /* Cancel all the IOCBs from the completions list */ |
6439 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6440 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
6441 | } |
6442 | ||
e59058c4 | 6443 | /** |
3621a710 | 6444 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
6445 | * @ndlp: pointer to a node-list data structure. |
6446 | * | |
6447 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
6448 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6449 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6450 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
6451 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6452 | * associated with the IOCB. | |
6453 | **/ | |
92d7f7b0 JS |
6454 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
6455 | { | |
6456 | LIST_HEAD(completions); | |
a257bf90 | 6457 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
6458 | struct lpfc_iocbq *tmp_iocb, *piocb; |
6459 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
6460 | |
6461 | spin_lock_irq(&phba->hbalock); | |
6462 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6463 | list) { | |
6464 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
6465 | ||
6466 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 6467 | } |
dea3101e | 6468 | } |
92d7f7b0 JS |
6469 | spin_unlock_irq(&phba->hbalock); |
6470 | ||
a257bf90 JS |
6471 | /* Cancel all the IOCBs from the completions list */ |
6472 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6473 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
6474 | } |
6475 | ||
e59058c4 | 6476 | /** |
3621a710 | 6477 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
6478 | * @phba: pointer to lpfc hba data structure. |
6479 | * | |
6480 | * This routine aborts all the IOCBs currently on the driver internal | |
6481 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
6482 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
6483 | * list, removes IOCBs off the list, set the status feild to | |
6484 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
6485 | * the IOCB. | |
6486 | **/ | |
92d7f7b0 JS |
6487 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
6488 | { | |
6489 | LIST_HEAD(completions); | |
92d7f7b0 JS |
6490 | |
6491 | spin_lock_irq(&phba->hbalock); | |
6492 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
6493 | spin_unlock_irq(&phba->hbalock); | |
6494 | ||
a257bf90 JS |
6495 | /* Cancel all the IOCBs from the completions list */ |
6496 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6497 | IOERR_SLI_ABORTED); | |
dea3101e | 6498 | } |