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dea3101e JB |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d8e93df1 | 4 | * Copyright (C) 2004-2009 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e JB |
8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
09372820 | 21 | /* See Fibre Channel protocol T11 FC-LS for details */ |
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | ||
91886523 | 26 | #include <scsi/scsi.h> |
dea3101e JB |
27 | #include <scsi/scsi_device.h> |
28 | #include <scsi/scsi_host.h> | |
29 | #include <scsi/scsi_transport_fc.h> | |
30 | ||
da0436e9 | 31 | #include "lpfc_hw4.h" |
dea3101e JB |
32 | #include "lpfc_hw.h" |
33 | #include "lpfc_sli.h" | |
da0436e9 | 34 | #include "lpfc_sli4.h" |
ea2151b4 | 35 | #include "lpfc_nl.h" |
dea3101e JB |
36 | #include "lpfc_disc.h" |
37 | #include "lpfc_scsi.h" | |
38 | #include "lpfc.h" | |
39 | #include "lpfc_logmsg.h" | |
40 | #include "lpfc_crtn.h" | |
92d7f7b0 | 41 | #include "lpfc_vport.h" |
858c9f6c | 42 | #include "lpfc_debugfs.h" |
dea3101e JB |
43 | |
44 | static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *, | |
45 | struct lpfc_iocbq *); | |
92d7f7b0 JS |
46 | static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *, |
47 | struct lpfc_iocbq *); | |
a6ababd2 AB |
48 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport); |
49 | static int lpfc_issue_els_fdisc(struct lpfc_vport *vport, | |
50 | struct lpfc_nodelist *ndlp, uint8_t retry); | |
51 | static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba, | |
52 | struct lpfc_iocbq *iocb); | |
53 | static void lpfc_register_new_vport(struct lpfc_hba *phba, | |
54 | struct lpfc_vport *vport, | |
55 | struct lpfc_nodelist *ndlp); | |
92d7f7b0 | 56 | |
dea3101e JB |
57 | static int lpfc_max_els_tries = 3; |
58 | ||
e59058c4 | 59 | /** |
3621a710 | 60 | * lpfc_els_chk_latt - Check host link attention event for a vport |
e59058c4 JS |
61 | * @vport: pointer to a host virtual N_Port data structure. |
62 | * | |
63 | * This routine checks whether there is an outstanding host link | |
64 | * attention event during the discovery process with the @vport. It is done | |
65 | * by reading the HBA's Host Attention (HA) register. If there is any host | |
66 | * link attention events during this @vport's discovery process, the @vport | |
67 | * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall | |
68 | * be issued if the link state is not already in host link cleared state, | |
69 | * and a return code shall indicate whether the host link attention event | |
70 | * had happened. | |
71 | * | |
72 | * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport | |
73 | * state in LPFC_VPORT_READY, the request for checking host link attention | |
74 | * event will be ignored and a return code shall indicate no host link | |
75 | * attention event had happened. | |
76 | * | |
77 | * Return codes | |
78 | * 0 - no host link attention event happened | |
79 | * 1 - host link attention event happened | |
80 | **/ | |
858c9f6c | 81 | int |
2e0fef85 | 82 | lpfc_els_chk_latt(struct lpfc_vport *vport) |
dea3101e | 83 | { |
2e0fef85 JS |
84 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
85 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 86 | uint32_t ha_copy; |
dea3101e | 87 | |
2e0fef85 | 88 | if (vport->port_state >= LPFC_VPORT_READY || |
3772a991 JS |
89 | phba->link_state == LPFC_LINK_DOWN || |
90 | phba->sli_rev > LPFC_SLI_REV3) | |
dea3101e JB |
91 | return 0; |
92 | ||
93 | /* Read the HBA Host Attention Register */ | |
dea3101e | 94 | ha_copy = readl(phba->HAregaddr); |
dea3101e JB |
95 | |
96 | if (!(ha_copy & HA_LATT)) | |
97 | return 0; | |
98 | ||
99 | /* Pending Link Event during Discovery */ | |
e8b62011 JS |
100 | lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, |
101 | "0237 Pending Link Event during " | |
102 | "Discovery: State x%x\n", | |
103 | phba->pport->port_state); | |
dea3101e JB |
104 | |
105 | /* CLEAR_LA should re-enable link attention events and | |
106 | * we should then imediately take a LATT event. The | |
107 | * LATT processing should call lpfc_linkdown() which | |
108 | * will cleanup any left over in-progress discovery | |
109 | * events. | |
110 | */ | |
2e0fef85 JS |
111 | spin_lock_irq(shost->host_lock); |
112 | vport->fc_flag |= FC_ABORT_DISCOVERY; | |
113 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 114 | |
92d7f7b0 | 115 | if (phba->link_state != LPFC_CLEAR_LA) |
ed957684 | 116 | lpfc_issue_clear_la(phba, vport); |
dea3101e | 117 | |
c9f8735b | 118 | return 1; |
dea3101e JB |
119 | } |
120 | ||
e59058c4 | 121 | /** |
3621a710 | 122 | * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure |
e59058c4 JS |
123 | * @vport: pointer to a host virtual N_Port data structure. |
124 | * @expectRsp: flag indicating whether response is expected. | |
125 | * @cmdSize: size of the ELS command. | |
126 | * @retry: number of retries to the command IOCB when it fails. | |
127 | * @ndlp: pointer to a node-list data structure. | |
128 | * @did: destination identifier. | |
129 | * @elscmd: the ELS command code. | |
130 | * | |
131 | * This routine is used for allocating a lpfc-IOCB data structure from | |
132 | * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters | |
133 | * passed into the routine for discovery state machine to issue an Extended | |
134 | * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation | |
135 | * and preparation routine that is used by all the discovery state machine | |
136 | * routines and the ELS command-specific fields will be later set up by | |
137 | * the individual discovery machine routines after calling this routine | |
138 | * allocating and preparing a generic IOCB data structure. It fills in the | |
139 | * Buffer Descriptor Entries (BDEs), allocates buffers for both command | |
140 | * payload and response payload (if expected). The reference count on the | |
141 | * ndlp is incremented by 1 and the reference to the ndlp is put into | |
142 | * context1 of the IOCB data structure for this IOCB to hold the ndlp | |
143 | * reference for the command's callback function to access later. | |
144 | * | |
145 | * Return code | |
146 | * Pointer to the newly allocated/prepared els iocb data structure | |
147 | * NULL - when els iocb data structure allocation/preparation failed | |
148 | **/ | |
f1c3b0fc | 149 | struct lpfc_iocbq * |
2e0fef85 JS |
150 | lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, |
151 | uint16_t cmdSize, uint8_t retry, | |
152 | struct lpfc_nodelist *ndlp, uint32_t did, | |
153 | uint32_t elscmd) | |
dea3101e | 154 | { |
2e0fef85 | 155 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 156 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
157 | struct lpfc_dmabuf *pcmd, *prsp, *pbuflist; |
158 | struct ulp_bde64 *bpl; | |
159 | IOCB_t *icmd; | |
160 | ||
dea3101e | 161 | |
2e0fef85 JS |
162 | if (!lpfc_is_link_up(phba)) |
163 | return NULL; | |
dea3101e | 164 | |
dea3101e | 165 | /* Allocate buffer for command iocb */ |
0bd4ca25 | 166 | elsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
167 | |
168 | if (elsiocb == NULL) | |
169 | return NULL; | |
e47c9093 | 170 | |
0c287589 JS |
171 | /* |
172 | * If this command is for fabric controller and HBA running | |
173 | * in FIP mode send FLOGI, FDISC and LOGO as FIP frames. | |
174 | */ | |
175 | if ((did == Fabric_DID) && | |
45ed1190 | 176 | (phba->hba_flag & HBA_FIP_SUPPORT) && |
0c287589 JS |
177 | ((elscmd == ELS_CMD_FLOGI) || |
178 | (elscmd == ELS_CMD_FDISC) || | |
179 | (elscmd == ELS_CMD_LOGO))) | |
c868595d JS |
180 | switch (elscmd) { |
181 | case ELS_CMD_FLOGI: | |
182 | elsiocb->iocb_flag |= ((ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT) | |
183 | & LPFC_FIP_ELS_ID_MASK); | |
184 | break; | |
185 | case ELS_CMD_FDISC: | |
186 | elsiocb->iocb_flag |= ((ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT) | |
187 | & LPFC_FIP_ELS_ID_MASK); | |
188 | break; | |
189 | case ELS_CMD_LOGO: | |
190 | elsiocb->iocb_flag |= ((ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT) | |
191 | & LPFC_FIP_ELS_ID_MASK); | |
192 | break; | |
193 | } | |
0c287589 | 194 | else |
c868595d | 195 | elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK; |
0c287589 | 196 | |
dea3101e JB |
197 | icmd = &elsiocb->iocb; |
198 | ||
199 | /* fill in BDEs for command */ | |
200 | /* Allocate buffer for command payload */ | |
98c9ea5c JS |
201 | pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
202 | if (pcmd) | |
203 | pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys); | |
fa4066b6 JS |
204 | if (!pcmd || !pcmd->virt) |
205 | goto els_iocb_free_pcmb_exit; | |
dea3101e JB |
206 | |
207 | INIT_LIST_HEAD(&pcmd->list); | |
208 | ||
209 | /* Allocate buffer for response payload */ | |
210 | if (expectRsp) { | |
92d7f7b0 | 211 | prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e JB |
212 | if (prsp) |
213 | prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, | |
214 | &prsp->phys); | |
fa4066b6 JS |
215 | if (!prsp || !prsp->virt) |
216 | goto els_iocb_free_prsp_exit; | |
dea3101e | 217 | INIT_LIST_HEAD(&prsp->list); |
e47c9093 | 218 | } else |
dea3101e | 219 | prsp = NULL; |
dea3101e JB |
220 | |
221 | /* Allocate buffer for Buffer ptr list */ | |
92d7f7b0 | 222 | pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
dea3101e | 223 | if (pbuflist) |
ed957684 JS |
224 | pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI, |
225 | &pbuflist->phys); | |
fa4066b6 JS |
226 | if (!pbuflist || !pbuflist->virt) |
227 | goto els_iocb_free_pbuf_exit; | |
dea3101e JB |
228 | |
229 | INIT_LIST_HEAD(&pbuflist->list); | |
230 | ||
231 | icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); | |
232 | icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); | |
34b02dcd | 233 | icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
2e0fef85 | 234 | icmd->un.elsreq64.remoteID = did; /* DID */ |
dea3101e | 235 | if (expectRsp) { |
92d7f7b0 | 236 | icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); |
dea3101e | 237 | icmd->ulpCommand = CMD_ELS_REQUEST64_CR; |
2680eeaa | 238 | icmd->ulpTimeout = phba->fc_ratov * 2; |
dea3101e | 239 | } else { |
92d7f7b0 | 240 | icmd->un.elsreq64.bdl.bdeSize = sizeof(struct ulp_bde64); |
dea3101e JB |
241 | icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX; |
242 | } | |
dea3101e JB |
243 | icmd->ulpBdeCount = 1; |
244 | icmd->ulpLe = 1; | |
245 | icmd->ulpClass = CLASS3; | |
246 | ||
92d7f7b0 JS |
247 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
248 | icmd->un.elsreq64.myID = vport->fc_myDID; | |
249 | ||
250 | /* For ELS_REQUEST64_CR, use the VPI by default */ | |
da0436e9 | 251 | icmd->ulpContext = vport->vpi + phba->vpi_base; |
92d7f7b0 | 252 | icmd->ulpCt_h = 0; |
eada272d JS |
253 | /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ |
254 | if (elscmd == ELS_CMD_ECHO) | |
255 | icmd->ulpCt_l = 0; /* context = invalid RPI */ | |
256 | else | |
257 | icmd->ulpCt_l = 1; /* context = VPI */ | |
92d7f7b0 JS |
258 | } |
259 | ||
dea3101e JB |
260 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
261 | bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys)); | |
262 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys)); | |
263 | bpl->tus.f.bdeSize = cmdSize; | |
264 | bpl->tus.f.bdeFlags = 0; | |
265 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
266 | ||
267 | if (expectRsp) { | |
268 | bpl++; | |
269 | bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); | |
270 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); | |
271 | bpl->tus.f.bdeSize = FCELSSIZE; | |
34b02dcd | 272 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
dea3101e JB |
273 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
274 | } | |
275 | ||
fa4066b6 | 276 | /* prevent preparing iocb with NULL ndlp reference */ |
51ef4c26 | 277 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
fa4066b6 JS |
278 | if (!elsiocb->context1) |
279 | goto els_iocb_free_pbuf_exit; | |
329f9bc7 JS |
280 | elsiocb->context2 = pcmd; |
281 | elsiocb->context3 = pbuflist; | |
dea3101e | 282 | elsiocb->retry = retry; |
2e0fef85 | 283 | elsiocb->vport = vport; |
dea3101e JB |
284 | elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT; |
285 | ||
286 | if (prsp) { | |
287 | list_add(&prsp->list, &pcmd->list); | |
288 | } | |
dea3101e JB |
289 | if (expectRsp) { |
290 | /* Xmit ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
291 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
292 | "0116 Xmit ELS command x%x to remote " | |
293 | "NPORT x%x I/O tag: x%x, port state: x%x\n", | |
294 | elscmd, did, elsiocb->iotag, | |
295 | vport->port_state); | |
dea3101e JB |
296 | } else { |
297 | /* Xmit ELS response <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
298 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
299 | "0117 Xmit ELS response x%x to remote " | |
300 | "NPORT x%x I/O tag: x%x, size: x%x\n", | |
301 | elscmd, ndlp->nlp_DID, elsiocb->iotag, | |
302 | cmdSize); | |
dea3101e | 303 | } |
c9f8735b | 304 | return elsiocb; |
dea3101e | 305 | |
fa4066b6 | 306 | els_iocb_free_pbuf_exit: |
eaf15d5b JS |
307 | if (expectRsp) |
308 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); | |
fa4066b6 JS |
309 | kfree(pbuflist); |
310 | ||
311 | els_iocb_free_prsp_exit: | |
312 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); | |
313 | kfree(prsp); | |
314 | ||
315 | els_iocb_free_pcmb_exit: | |
316 | kfree(pcmd); | |
317 | lpfc_sli_release_iocbq(phba, elsiocb); | |
318 | return NULL; | |
319 | } | |
dea3101e | 320 | |
e59058c4 | 321 | /** |
3621a710 | 322 | * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport |
e59058c4 JS |
323 | * @vport: pointer to a host virtual N_Port data structure. |
324 | * | |
325 | * This routine issues a fabric registration login for a @vport. An | |
326 | * active ndlp node with Fabric_DID must already exist for this @vport. | |
327 | * The routine invokes two mailbox commands to carry out fabric registration | |
328 | * login through the HBA firmware: the first mailbox command requests the | |
329 | * HBA to perform link configuration for the @vport; and the second mailbox | |
330 | * command requests the HBA to perform the actual fabric registration login | |
331 | * with the @vport. | |
332 | * | |
333 | * Return code | |
334 | * 0 - successfully issued fabric registration login for @vport | |
335 | * -ENXIO -- failed to issue fabric registration login for @vport | |
336 | **/ | |
3772a991 | 337 | int |
92d7f7b0 | 338 | lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) |
dea3101e | 339 | { |
2e0fef85 | 340 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 341 | LPFC_MBOXQ_t *mbox; |
14691150 | 342 | struct lpfc_dmabuf *mp; |
92d7f7b0 JS |
343 | struct lpfc_nodelist *ndlp; |
344 | struct serv_parm *sp; | |
dea3101e | 345 | int rc; |
98c9ea5c | 346 | int err = 0; |
dea3101e | 347 | |
92d7f7b0 JS |
348 | sp = &phba->fc_fabparam; |
349 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
e47c9093 | 350 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
98c9ea5c | 351 | err = 1; |
92d7f7b0 | 352 | goto fail; |
98c9ea5c | 353 | } |
92d7f7b0 JS |
354 | |
355 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
356 | if (!mbox) { |
357 | err = 2; | |
92d7f7b0 | 358 | goto fail; |
98c9ea5c | 359 | } |
92d7f7b0 JS |
360 | |
361 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
362 | lpfc_config_link(phba, mbox); | |
363 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
364 | mbox->vport = vport; | |
365 | ||
0b727fea | 366 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
367 | if (rc == MBX_NOT_FINISHED) { |
368 | err = 3; | |
92d7f7b0 | 369 | goto fail_free_mbox; |
98c9ea5c | 370 | } |
92d7f7b0 JS |
371 | |
372 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
98c9ea5c JS |
373 | if (!mbox) { |
374 | err = 4; | |
92d7f7b0 | 375 | goto fail; |
98c9ea5c | 376 | } |
3772a991 | 377 | rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox, 0); |
98c9ea5c JS |
378 | if (rc) { |
379 | err = 5; | |
92d7f7b0 | 380 | goto fail_free_mbox; |
98c9ea5c | 381 | } |
92d7f7b0 JS |
382 | |
383 | mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login; | |
384 | mbox->vport = vport; | |
e47c9093 JS |
385 | /* increment the reference count on ndlp to hold reference |
386 | * for the callback routine. | |
387 | */ | |
92d7f7b0 JS |
388 | mbox->context2 = lpfc_nlp_get(ndlp); |
389 | ||
0b727fea | 390 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
98c9ea5c JS |
391 | if (rc == MBX_NOT_FINISHED) { |
392 | err = 6; | |
92d7f7b0 | 393 | goto fail_issue_reg_login; |
98c9ea5c | 394 | } |
92d7f7b0 JS |
395 | |
396 | return 0; | |
397 | ||
398 | fail_issue_reg_login: | |
e47c9093 JS |
399 | /* decrement the reference count on ndlp just incremented |
400 | * for the failed mbox command. | |
401 | */ | |
92d7f7b0 JS |
402 | lpfc_nlp_put(ndlp); |
403 | mp = (struct lpfc_dmabuf *) mbox->context1; | |
404 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
405 | kfree(mp); | |
406 | fail_free_mbox: | |
407 | mempool_free(mbox, phba->mbox_mem_pool); | |
408 | ||
409 | fail: | |
410 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 | 411 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
98c9ea5c | 412 | "0249 Cannot issue Register Fabric login: Err %d\n", err); |
92d7f7b0 JS |
413 | return -ENXIO; |
414 | } | |
415 | ||
6fb120a7 JS |
416 | /** |
417 | * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login | |
418 | * @vport: pointer to a host virtual N_Port data structure. | |
419 | * | |
420 | * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for | |
421 | * the @vport. This mailbox command is necessary for FCoE only. | |
422 | * | |
423 | * Return code | |
424 | * 0 - successfully issued REG_VFI for @vport | |
425 | * A failure code otherwise. | |
426 | **/ | |
427 | static int | |
428 | lpfc_issue_reg_vfi(struct lpfc_vport *vport) | |
429 | { | |
430 | struct lpfc_hba *phba = vport->phba; | |
431 | LPFC_MBOXQ_t *mboxq; | |
432 | struct lpfc_nodelist *ndlp; | |
433 | struct serv_parm *sp; | |
434 | struct lpfc_dmabuf *dmabuf; | |
435 | int rc = 0; | |
436 | ||
437 | sp = &phba->fc_fabparam; | |
438 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
439 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { | |
440 | rc = -ENODEV; | |
441 | goto fail; | |
442 | } | |
443 | ||
444 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
445 | if (!dmabuf) { | |
446 | rc = -ENOMEM; | |
447 | goto fail; | |
448 | } | |
449 | dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys); | |
450 | if (!dmabuf->virt) { | |
451 | rc = -ENOMEM; | |
452 | goto fail_free_dmabuf; | |
453 | } | |
454 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
455 | if (!mboxq) { | |
456 | rc = -ENOMEM; | |
457 | goto fail_free_coherent; | |
458 | } | |
459 | vport->port_state = LPFC_FABRIC_CFG_LINK; | |
460 | memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam)); | |
461 | lpfc_reg_vfi(mboxq, vport, dmabuf->phys); | |
462 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi; | |
463 | mboxq->vport = vport; | |
464 | mboxq->context1 = dmabuf; | |
465 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
466 | if (rc == MBX_NOT_FINISHED) { | |
467 | rc = -ENXIO; | |
468 | goto fail_free_mbox; | |
469 | } | |
470 | return 0; | |
471 | ||
472 | fail_free_mbox: | |
473 | mempool_free(mboxq, phba->mbox_mem_pool); | |
474 | fail_free_coherent: | |
475 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); | |
476 | fail_free_dmabuf: | |
477 | kfree(dmabuf); | |
478 | fail: | |
479 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
480 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
481 | "0289 Issue Register VFI failed: Err %d\n", rc); | |
482 | return rc; | |
483 | } | |
484 | ||
e59058c4 | 485 | /** |
3621a710 | 486 | * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port |
e59058c4 JS |
487 | * @vport: pointer to a host virtual N_Port data structure. |
488 | * @ndlp: pointer to a node-list data structure. | |
489 | * @sp: pointer to service parameter data structure. | |
490 | * @irsp: pointer to the IOCB within the lpfc response IOCB. | |
491 | * | |
492 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
493 | * function to handle the completion of a Fabric Login (FLOGI) into a fabric | |
494 | * port in a fabric topology. It properly sets up the parameters to the @ndlp | |
495 | * from the IOCB response. It also check the newly assigned N_Port ID to the | |
496 | * @vport against the previously assigned N_Port ID. If it is different from | |
497 | * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine | |
498 | * is invoked on all the remaining nodes with the @vport to unregister the | |
499 | * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin() | |
500 | * is invoked to register login to the fabric. | |
501 | * | |
502 | * Return code | |
503 | * 0 - Success (currently, always return 0) | |
504 | **/ | |
92d7f7b0 JS |
505 | static int |
506 | lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, | |
507 | struct serv_parm *sp, IOCB_t *irsp) | |
508 | { | |
509 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
510 | struct lpfc_hba *phba = vport->phba; | |
511 | struct lpfc_nodelist *np; | |
512 | struct lpfc_nodelist *next_np; | |
513 | ||
2e0fef85 JS |
514 | spin_lock_irq(shost->host_lock); |
515 | vport->fc_flag |= FC_FABRIC; | |
516 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
517 | |
518 | phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov); | |
519 | if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */ | |
520 | phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000; | |
521 | ||
522 | phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000; | |
523 | ||
524 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
2e0fef85 JS |
525 | spin_lock_irq(shost->host_lock); |
526 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
527 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
528 | } else { |
529 | /* | |
530 | * If we are a N-port connected to a Fabric, fixup sparam's so | |
531 | * logins to devices on remote loops work. | |
532 | */ | |
2e0fef85 | 533 | vport->fc_sparam.cmn.altBbCredit = 1; |
dea3101e JB |
534 | } |
535 | ||
2e0fef85 | 536 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
dea3101e | 537 | memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name)); |
92d7f7b0 | 538 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name)); |
dea3101e JB |
539 | ndlp->nlp_class_sup = 0; |
540 | if (sp->cls1.classValid) | |
541 | ndlp->nlp_class_sup |= FC_COS_CLASS1; | |
542 | if (sp->cls2.classValid) | |
543 | ndlp->nlp_class_sup |= FC_COS_CLASS2; | |
544 | if (sp->cls3.classValid) | |
545 | ndlp->nlp_class_sup |= FC_COS_CLASS3; | |
546 | if (sp->cls4.classValid) | |
547 | ndlp->nlp_class_sup |= FC_COS_CLASS4; | |
548 | ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | | |
549 | sp->cmn.bbRcvSizeLsb; | |
550 | memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm)); | |
551 | ||
92d7f7b0 JS |
552 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { |
553 | if (sp->cmn.response_multiple_NPort) { | |
e8b62011 JS |
554 | lpfc_printf_vlog(vport, KERN_WARNING, |
555 | LOG_ELS | LOG_VPORT, | |
556 | "1816 FLOGI NPIV supported, " | |
557 | "response data 0x%x\n", | |
558 | sp->cmn.response_multiple_NPort); | |
92d7f7b0 | 559 | phba->link_flag |= LS_NPIV_FAB_SUPPORTED; |
92d7f7b0 JS |
560 | } else { |
561 | /* Because we asked f/w for NPIV it still expects us | |
e8b62011 JS |
562 | to call reg_vnpid atleast for the physcial host */ |
563 | lpfc_printf_vlog(vport, KERN_WARNING, | |
564 | LOG_ELS | LOG_VPORT, | |
565 | "1817 Fabric does not support NPIV " | |
566 | "- configuring single port mode.\n"); | |
92d7f7b0 JS |
567 | phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED; |
568 | } | |
569 | } | |
dea3101e | 570 | |
92d7f7b0 JS |
571 | if ((vport->fc_prevDID != vport->fc_myDID) && |
572 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
dea3101e | 573 | |
92d7f7b0 JS |
574 | /* If our NportID changed, we need to ensure all |
575 | * remaining NPORTs get unreg_login'ed. | |
576 | */ | |
577 | list_for_each_entry_safe(np, next_np, | |
578 | &vport->fc_nodes, nlp_listp) { | |
d7c255b2 | 579 | if (!NLP_CHK_NODE_ACT(np)) |
e47c9093 | 580 | continue; |
92d7f7b0 JS |
581 | if ((np->nlp_state != NLP_STE_NPR_NODE) || |
582 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
583 | continue; | |
584 | spin_lock_irq(shost->host_lock); | |
585 | np->nlp_flag &= ~NLP_NPR_ADISC; | |
586 | spin_unlock_irq(shost->host_lock); | |
587 | lpfc_unreg_rpi(vport, np); | |
588 | } | |
589 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
590 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 591 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 592 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 593 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
594 | } |
595 | } | |
dea3101e | 596 | |
6fb120a7 JS |
597 | if (phba->sli_rev < LPFC_SLI_REV4) { |
598 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE); | |
599 | if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED && | |
600 | vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) | |
601 | lpfc_register_new_vport(phba, vport, ndlp); | |
602 | else | |
603 | lpfc_issue_fabric_reglogin(vport); | |
604 | } else { | |
605 | ndlp->nlp_type |= NLP_FABRIC; | |
606 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE); | |
c868595d | 607 | if (vport->vpi_state & LPFC_VPI_REGISTERED) { |
6fb120a7 JS |
608 | lpfc_start_fdiscs(phba); |
609 | lpfc_do_scr_ns_plogi(phba, vport); | |
610 | } else | |
611 | lpfc_issue_reg_vfi(vport); | |
92d7f7b0 | 612 | } |
dea3101e | 613 | return 0; |
dea3101e | 614 | } |
e59058c4 | 615 | /** |
3621a710 | 616 | * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port |
e59058c4 JS |
617 | * @vport: pointer to a host virtual N_Port data structure. |
618 | * @ndlp: pointer to a node-list data structure. | |
619 | * @sp: pointer to service parameter data structure. | |
620 | * | |
621 | * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback | |
622 | * function to handle the completion of a Fabric Login (FLOGI) into an N_Port | |
623 | * in a point-to-point topology. First, the @vport's N_Port Name is compared | |
624 | * with the received N_Port Name: if the @vport's N_Port Name is greater than | |
625 | * the received N_Port Name lexicographically, this node shall assign local | |
626 | * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and | |
627 | * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise, | |
628 | * this node shall just wait for the remote node to issue PLOGI and assign | |
629 | * N_Port IDs. | |
630 | * | |
631 | * Return code | |
632 | * 0 - Success | |
633 | * -ENXIO - Fail | |
634 | **/ | |
dea3101e | 635 | static int |
2e0fef85 JS |
636 | lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
637 | struct serv_parm *sp) | |
dea3101e | 638 | { |
2e0fef85 JS |
639 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
640 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
641 | LPFC_MBOXQ_t *mbox; |
642 | int rc; | |
643 | ||
2e0fef85 JS |
644 | spin_lock_irq(shost->host_lock); |
645 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
646 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
647 | |
648 | phba->fc_edtov = FF_DEF_EDTOV; | |
649 | phba->fc_ratov = FF_DEF_RATOV; | |
2e0fef85 | 650 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 651 | sizeof(vport->fc_portname)); |
dea3101e JB |
652 | if (rc >= 0) { |
653 | /* This side will initiate the PLOGI */ | |
2e0fef85 JS |
654 | spin_lock_irq(shost->host_lock); |
655 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
656 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
657 | |
658 | /* | |
659 | * N_Port ID cannot be 0, set our to LocalID the other | |
660 | * side will be RemoteID. | |
661 | */ | |
662 | ||
663 | /* not equal */ | |
664 | if (rc) | |
2e0fef85 | 665 | vport->fc_myDID = PT2PT_LocalID; |
dea3101e JB |
666 | |
667 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
668 | if (!mbox) | |
669 | goto fail; | |
670 | ||
671 | lpfc_config_link(phba, mbox); | |
672 | ||
673 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
ed957684 | 674 | mbox->vport = vport; |
0b727fea | 675 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
dea3101e JB |
676 | if (rc == MBX_NOT_FINISHED) { |
677 | mempool_free(mbox, phba->mbox_mem_pool); | |
678 | goto fail; | |
679 | } | |
e47c9093 JS |
680 | /* Decrement ndlp reference count indicating that ndlp can be |
681 | * safely released when other references to it are done. | |
682 | */ | |
329f9bc7 | 683 | lpfc_nlp_put(ndlp); |
dea3101e | 684 | |
2e0fef85 | 685 | ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID); |
dea3101e JB |
686 | if (!ndlp) { |
687 | /* | |
688 | * Cannot find existing Fabric ndlp, so allocate a | |
689 | * new one | |
690 | */ | |
691 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
692 | if (!ndlp) | |
693 | goto fail; | |
2e0fef85 | 694 | lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID); |
e47c9093 JS |
695 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
696 | ndlp = lpfc_enable_node(vport, ndlp, | |
697 | NLP_STE_UNUSED_NODE); | |
698 | if(!ndlp) | |
699 | goto fail; | |
dea3101e JB |
700 | } |
701 | ||
702 | memcpy(&ndlp->nlp_portname, &sp->portName, | |
2e0fef85 | 703 | sizeof(struct lpfc_name)); |
dea3101e | 704 | memcpy(&ndlp->nlp_nodename, &sp->nodeName, |
2e0fef85 | 705 | sizeof(struct lpfc_name)); |
e47c9093 | 706 | /* Set state will put ndlp onto node list if not already done */ |
2e0fef85 JS |
707 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
708 | spin_lock_irq(shost->host_lock); | |
dea3101e | 709 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 710 | spin_unlock_irq(shost->host_lock); |
e47c9093 JS |
711 | } else |
712 | /* This side will wait for the PLOGI, decrement ndlp reference | |
713 | * count indicating that ndlp can be released when other | |
714 | * references to it are done. | |
715 | */ | |
329f9bc7 | 716 | lpfc_nlp_put(ndlp); |
dea3101e | 717 | |
09372820 JS |
718 | /* If we are pt2pt with another NPort, force NPIV off! */ |
719 | phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED; | |
720 | ||
2e0fef85 JS |
721 | spin_lock_irq(shost->host_lock); |
722 | vport->fc_flag |= FC_PT2PT; | |
723 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
724 | |
725 | /* Start discovery - this should just do CLEAR_LA */ | |
2e0fef85 | 726 | lpfc_disc_start(vport); |
dea3101e | 727 | return 0; |
92d7f7b0 | 728 | fail: |
dea3101e JB |
729 | return -ENXIO; |
730 | } | |
731 | ||
e59058c4 | 732 | /** |
3621a710 | 733 | * lpfc_cmpl_els_flogi - Completion callback function for flogi |
e59058c4 JS |
734 | * @phba: pointer to lpfc hba data structure. |
735 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
736 | * @rspiocb: pointer to lpfc response iocb data structure. | |
737 | * | |
738 | * This routine is the top-level completion callback function for issuing | |
739 | * a Fabric Login (FLOGI) command. If the response IOCB reported error, | |
740 | * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If | |
741 | * retry has been made (either immediately or delayed with lpfc_els_retry() | |
742 | * returning 1), the command IOCB will be released and function returned. | |
743 | * If the retry attempt has been given up (possibly reach the maximum | |
744 | * number of retries), one additional decrement of ndlp reference shall be | |
745 | * invoked before going out after releasing the command IOCB. This will | |
746 | * actually release the remote node (Note, lpfc_els_free_iocb() will also | |
747 | * invoke one decrement of ndlp reference count). If no error reported in | |
748 | * the IOCB status, the command Port ID field is used to determine whether | |
749 | * this is a point-to-point topology or a fabric topology: if the Port ID | |
750 | * field is assigned, it is a fabric topology; otherwise, it is a | |
751 | * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or | |
752 | * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the | |
753 | * specific topology completion conditions. | |
754 | **/ | |
dea3101e | 755 | static void |
329f9bc7 JS |
756 | lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
757 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 758 | { |
2e0fef85 JS |
759 | struct lpfc_vport *vport = cmdiocb->vport; |
760 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
761 | IOCB_t *irsp = &rspiocb->iocb; |
762 | struct lpfc_nodelist *ndlp = cmdiocb->context1; | |
763 | struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp; | |
764 | struct serv_parm *sp; | |
765 | int rc; | |
766 | ||
767 | /* Check to see if link went down during discovery */ | |
2e0fef85 | 768 | if (lpfc_els_chk_latt(vport)) { |
fa4066b6 JS |
769 | /* One additional decrement on node reference count to |
770 | * trigger the release of the node | |
771 | */ | |
329f9bc7 | 772 | lpfc_nlp_put(ndlp); |
dea3101e JB |
773 | goto out; |
774 | } | |
775 | ||
858c9f6c JS |
776 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
777 | "FLOGI cmpl: status:x%x/x%x state:x%x", | |
778 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
779 | vport->port_state); | |
780 | ||
dea3101e JB |
781 | if (irsp->ulpStatus) { |
782 | /* Check for retry */ | |
2e0fef85 | 783 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e | 784 | goto out; |
2e0fef85 | 785 | |
dea3101e | 786 | /* FLOGI failed, so there is no fabric */ |
2e0fef85 JS |
787 | spin_lock_irq(shost->host_lock); |
788 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
789 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 790 | |
329f9bc7 | 791 | /* If private loop, then allow max outstanding els to be |
dea3101e JB |
792 | * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no |
793 | * alpa map would take too long otherwise. | |
794 | */ | |
795 | if (phba->alpa_map[0] == 0) { | |
3de2a653 | 796 | vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS; |
dea3101e JB |
797 | } |
798 | ||
799 | /* FLOGI failure */ | |
e8b62011 JS |
800 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
801 | "0100 FLOGI failure Data: x%x x%x " | |
802 | "x%x\n", | |
803 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
804 | irsp->ulpTimeout); | |
dea3101e JB |
805 | goto flogifail; |
806 | } | |
807 | ||
808 | /* | |
809 | * The FLogI succeeded. Sync the data for the CPU before | |
810 | * accessing it. | |
811 | */ | |
812 | prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list); | |
813 | ||
814 | sp = prsp->virt + sizeof(uint32_t); | |
815 | ||
816 | /* FLOGI completes successfully */ | |
e8b62011 | 817 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
af901ca1 | 818 | "0101 FLOGI completes successfully " |
e8b62011 JS |
819 | "Data: x%x x%x x%x x%x\n", |
820 | irsp->un.ulpWord[4], sp->cmn.e_d_tov, | |
821 | sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution); | |
dea3101e | 822 | |
2e0fef85 | 823 | if (vport->port_state == LPFC_FLOGI) { |
dea3101e JB |
824 | /* |
825 | * If Common Service Parameters indicate Nport | |
826 | * we are point to point, if Fport we are Fabric. | |
827 | */ | |
828 | if (sp->cmn.fPort) | |
2e0fef85 | 829 | rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp); |
dea3101e | 830 | else |
2e0fef85 | 831 | rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp); |
dea3101e JB |
832 | |
833 | if (!rc) | |
834 | goto out; | |
835 | } | |
836 | ||
837 | flogifail: | |
329f9bc7 | 838 | lpfc_nlp_put(ndlp); |
dea3101e | 839 | |
858c9f6c | 840 | if (!lpfc_error_lost_link(irsp)) { |
dea3101e | 841 | /* FLOGI failed, so just use loop map to make discovery list */ |
2e0fef85 | 842 | lpfc_disc_list_loopmap(vport); |
dea3101e JB |
843 | |
844 | /* Start discovery */ | |
2e0fef85 | 845 | lpfc_disc_start(vport); |
87af33fe JS |
846 | } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || |
847 | ((irsp->un.ulpWord[4] != IOERR_SLI_ABORTED) && | |
848 | (irsp->un.ulpWord[4] != IOERR_SLI_DOWN))) && | |
849 | (phba->link_state != LPFC_CLEAR_LA)) { | |
850 | /* If FLOGI failed enable link interrupt. */ | |
851 | lpfc_issue_clear_la(phba, vport); | |
dea3101e | 852 | } |
dea3101e JB |
853 | out: |
854 | lpfc_els_free_iocb(phba, cmdiocb); | |
855 | } | |
856 | ||
e59058c4 | 857 | /** |
3621a710 | 858 | * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport |
e59058c4 JS |
859 | * @vport: pointer to a host virtual N_Port data structure. |
860 | * @ndlp: pointer to a node-list data structure. | |
861 | * @retry: number of retries to the command IOCB. | |
862 | * | |
863 | * This routine issues a Fabric Login (FLOGI) Request ELS command | |
864 | * for a @vport. The initiator service parameters are put into the payload | |
865 | * of the FLOGI Request IOCB and the top-level callback function pointer | |
866 | * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback | |
867 | * function field. The lpfc_issue_fabric_iocb routine is invoked to send | |
868 | * out FLOGI ELS command with one outstanding fabric IOCB at a time. | |
869 | * | |
870 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
871 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
872 | * will be stored into the context1 field of the IOCB for the completion | |
873 | * callback function to the FLOGI ELS command. | |
874 | * | |
875 | * Return code | |
876 | * 0 - successfully issued flogi iocb for @vport | |
877 | * 1 - failed to issue flogi iocb for @vport | |
878 | **/ | |
dea3101e | 879 | static int |
2e0fef85 | 880 | lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
881 | uint8_t retry) |
882 | { | |
2e0fef85 | 883 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
884 | struct serv_parm *sp; |
885 | IOCB_t *icmd; | |
886 | struct lpfc_iocbq *elsiocb; | |
887 | struct lpfc_sli_ring *pring; | |
888 | uint8_t *pcmd; | |
889 | uint16_t cmdsize; | |
890 | uint32_t tmo; | |
891 | int rc; | |
892 | ||
893 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
894 | ||
92d7f7b0 | 895 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
2e0fef85 JS |
896 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
897 | ndlp->nlp_DID, ELS_CMD_FLOGI); | |
92d7f7b0 | 898 | |
488d1469 | 899 | if (!elsiocb) |
c9f8735b | 900 | return 1; |
dea3101e JB |
901 | |
902 | icmd = &elsiocb->iocb; | |
903 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
904 | ||
905 | /* For FLOGI request, remainder of payload is service parameters */ | |
906 | *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI; | |
92d7f7b0 JS |
907 | pcmd += sizeof(uint32_t); |
908 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
909 | sp = (struct serv_parm *) pcmd; |
910 | ||
911 | /* Setup CSPs accordingly for Fabric */ | |
912 | sp->cmn.e_d_tov = 0; | |
913 | sp->cmn.w2.r_a_tov = 0; | |
914 | sp->cls1.classValid = 0; | |
915 | sp->cls2.seqDelivery = 1; | |
916 | sp->cls3.seqDelivery = 1; | |
917 | if (sp->cmn.fcphLow < FC_PH3) | |
918 | sp->cmn.fcphLow = FC_PH3; | |
919 | if (sp->cmn.fcphHigh < FC_PH3) | |
920 | sp->cmn.fcphHigh = FC_PH3; | |
921 | ||
6fb120a7 JS |
922 | if (phba->sli_rev == LPFC_SLI_REV4) { |
923 | elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1); | |
924 | elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1); | |
925 | /* FLOGI needs to be 3 for WQE FCFI */ | |
926 | /* Set the fcfi to the fcfi we registered with */ | |
927 | elsiocb->iocb.ulpContext = phba->fcf.fcfi; | |
928 | } else if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) { | |
92d7f7b0 | 929 | sp->cmn.request_multiple_Nport = 1; |
92d7f7b0 JS |
930 | /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */ |
931 | icmd->ulpCt_h = 1; | |
932 | icmd->ulpCt_l = 0; | |
933 | } | |
934 | ||
858c9f6c JS |
935 | if (phba->fc_topology != TOPOLOGY_LOOP) { |
936 | icmd->un.elsreq64.myID = 0; | |
937 | icmd->un.elsreq64.fl = 1; | |
938 | } | |
939 | ||
dea3101e JB |
940 | tmo = phba->fc_ratov; |
941 | phba->fc_ratov = LPFC_DISC_FLOGI_TMO; | |
2e0fef85 | 942 | lpfc_set_disctmo(vport); |
dea3101e JB |
943 | phba->fc_ratov = tmo; |
944 | ||
945 | phba->fc_stat.elsXmitFLOGI++; | |
946 | elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi; | |
858c9f6c JS |
947 | |
948 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
949 | "Issue FLOGI: opt:x%x", | |
950 | phba->sli3_options, 0, 0); | |
951 | ||
92d7f7b0 | 952 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
dea3101e JB |
953 | if (rc == IOCB_ERROR) { |
954 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 955 | return 1; |
dea3101e | 956 | } |
c9f8735b | 957 | return 0; |
dea3101e JB |
958 | } |
959 | ||
e59058c4 | 960 | /** |
3621a710 | 961 | * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs |
e59058c4 JS |
962 | * @phba: pointer to lpfc hba data structure. |
963 | * | |
964 | * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs | |
965 | * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq | |
966 | * list and issues an abort IOCB commond on each outstanding IOCB that | |
967 | * contains a active Fabric_DID ndlp. Note that this function is to issue | |
968 | * the abort IOCB command on all the outstanding IOCBs, thus when this | |
969 | * function returns, it does not guarantee all the IOCBs are actually aborted. | |
970 | * | |
971 | * Return code | |
3ad2f3fb | 972 | * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0) |
e59058c4 | 973 | **/ |
dea3101e | 974 | int |
2e0fef85 | 975 | lpfc_els_abort_flogi(struct lpfc_hba *phba) |
dea3101e JB |
976 | { |
977 | struct lpfc_sli_ring *pring; | |
978 | struct lpfc_iocbq *iocb, *next_iocb; | |
979 | struct lpfc_nodelist *ndlp; | |
980 | IOCB_t *icmd; | |
981 | ||
982 | /* Abort outstanding I/O on NPort <nlp_DID> */ | |
983 | lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY, | |
e8b62011 JS |
984 | "0201 Abort outstanding I/O on NPort x%x\n", |
985 | Fabric_DID); | |
dea3101e JB |
986 | |
987 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
988 | ||
989 | /* | |
990 | * Check the txcmplq for an iocb that matches the nport the driver is | |
991 | * searching for. | |
992 | */ | |
2e0fef85 | 993 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
994 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
995 | icmd = &iocb->iocb; | |
2e0fef85 JS |
996 | if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR && |
997 | icmd->un.elsreq64.bdl.ulpIoTag32) { | |
dea3101e | 998 | ndlp = (struct lpfc_nodelist *)(iocb->context1); |
58da1ffb JS |
999 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
1000 | (ndlp->nlp_DID == Fabric_DID)) | |
07951076 | 1001 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); |
dea3101e JB |
1002 | } |
1003 | } | |
2e0fef85 | 1004 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
1005 | |
1006 | return 0; | |
1007 | } | |
1008 | ||
e59058c4 | 1009 | /** |
3621a710 | 1010 | * lpfc_initial_flogi - Issue an initial fabric login for a vport |
e59058c4 JS |
1011 | * @vport: pointer to a host virtual N_Port data structure. |
1012 | * | |
1013 | * This routine issues an initial Fabric Login (FLOGI) for the @vport | |
1014 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1015 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1016 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1017 | * it will just be enabled and made active. The lpfc_issue_els_flogi() routine | |
1018 | * is then invoked with the @vport and the ndlp to perform the FLOGI for the | |
1019 | * @vport. | |
1020 | * | |
1021 | * Return code | |
1022 | * 0 - failed to issue initial flogi for @vport | |
1023 | * 1 - successfully issued initial flogi for @vport | |
1024 | **/ | |
dea3101e | 1025 | int |
2e0fef85 | 1026 | lpfc_initial_flogi(struct lpfc_vport *vport) |
dea3101e | 1027 | { |
2e0fef85 | 1028 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1029 | struct lpfc_nodelist *ndlp; |
1030 | ||
98c9ea5c JS |
1031 | vport->port_state = LPFC_FLOGI; |
1032 | lpfc_set_disctmo(vport); | |
1033 | ||
c9f8735b | 1034 | /* First look for the Fabric ndlp */ |
2e0fef85 | 1035 | ndlp = lpfc_findnode_did(vport, Fabric_DID); |
c9f8735b | 1036 | if (!ndlp) { |
dea3101e | 1037 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b JW |
1038 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
1039 | if (!ndlp) | |
1040 | return 0; | |
2e0fef85 | 1041 | lpfc_nlp_init(vport, ndlp, Fabric_DID); |
6fb120a7 JS |
1042 | /* Set the node type */ |
1043 | ndlp->nlp_type |= NLP_FABRIC; | |
e47c9093 JS |
1044 | /* Put ndlp onto node list */ |
1045 | lpfc_enqueue_node(vport, ndlp); | |
1046 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1047 | /* re-setup ndlp without removing from node list */ | |
1048 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1049 | if (!ndlp) | |
1050 | return 0; | |
dea3101e | 1051 | } |
87af33fe | 1052 | |
e47c9093 | 1053 | if (lpfc_issue_els_flogi(vport, ndlp, 0)) |
fa4066b6 JS |
1054 | /* This decrement of reference count to node shall kick off |
1055 | * the release of the node. | |
1056 | */ | |
329f9bc7 | 1057 | lpfc_nlp_put(ndlp); |
e47c9093 | 1058 | |
c9f8735b | 1059 | return 1; |
dea3101e JB |
1060 | } |
1061 | ||
e59058c4 | 1062 | /** |
3621a710 | 1063 | * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport |
e59058c4 JS |
1064 | * @vport: pointer to a host virtual N_Port data structure. |
1065 | * | |
1066 | * This routine issues an initial Fabric Discover (FDISC) for the @vport | |
1067 | * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from | |
1068 | * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and | |
1069 | * put it into the @vport's ndlp list. If an inactive ndlp found on the list, | |
1070 | * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine | |
1071 | * is then invoked with the @vport and the ndlp to perform the FDISC for the | |
1072 | * @vport. | |
1073 | * | |
1074 | * Return code | |
1075 | * 0 - failed to issue initial fdisc for @vport | |
1076 | * 1 - successfully issued initial fdisc for @vport | |
1077 | **/ | |
92d7f7b0 JS |
1078 | int |
1079 | lpfc_initial_fdisc(struct lpfc_vport *vport) | |
1080 | { | |
1081 | struct lpfc_hba *phba = vport->phba; | |
1082 | struct lpfc_nodelist *ndlp; | |
1083 | ||
1084 | /* First look for the Fabric ndlp */ | |
1085 | ndlp = lpfc_findnode_did(vport, Fabric_DID); | |
1086 | if (!ndlp) { | |
1087 | /* Cannot find existing Fabric ndlp, so allocate a new one */ | |
1088 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
1089 | if (!ndlp) | |
1090 | return 0; | |
1091 | lpfc_nlp_init(vport, ndlp, Fabric_DID); | |
e47c9093 JS |
1092 | /* Put ndlp onto node list */ |
1093 | lpfc_enqueue_node(vport, ndlp); | |
1094 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
1095 | /* re-setup ndlp without removing from node list */ | |
1096 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
1097 | if (!ndlp) | |
1098 | return 0; | |
92d7f7b0 | 1099 | } |
e47c9093 | 1100 | |
92d7f7b0 | 1101 | if (lpfc_issue_els_fdisc(vport, ndlp, 0)) { |
fa4066b6 JS |
1102 | /* decrement node reference count to trigger the release of |
1103 | * the node. | |
1104 | */ | |
92d7f7b0 | 1105 | lpfc_nlp_put(ndlp); |
fa4066b6 | 1106 | return 0; |
92d7f7b0 JS |
1107 | } |
1108 | return 1; | |
1109 | } | |
87af33fe | 1110 | |
e59058c4 | 1111 | /** |
3621a710 | 1112 | * lpfc_more_plogi - Check and issue remaining plogis for a vport |
e59058c4 JS |
1113 | * @vport: pointer to a host virtual N_Port data structure. |
1114 | * | |
1115 | * This routine checks whether there are more remaining Port Logins | |
1116 | * (PLOGI) to be issued for the @vport. If so, it will invoke the routine | |
1117 | * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes | |
1118 | * to issue ELS PLOGIs up to the configured discover threads with the | |
1119 | * @vport (@vport->cfg_discovery_threads). The function also decrement | |
1120 | * the @vport's num_disc_node by 1 if it is not already 0. | |
1121 | **/ | |
87af33fe | 1122 | void |
2e0fef85 | 1123 | lpfc_more_plogi(struct lpfc_vport *vport) |
dea3101e JB |
1124 | { |
1125 | int sentplogi; | |
1126 | ||
2e0fef85 JS |
1127 | if (vport->num_disc_nodes) |
1128 | vport->num_disc_nodes--; | |
dea3101e JB |
1129 | |
1130 | /* Continue discovery with <num_disc_nodes> PLOGIs to go */ | |
e8b62011 JS |
1131 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1132 | "0232 Continue discovery with %d PLOGIs to go " | |
1133 | "Data: x%x x%x x%x\n", | |
1134 | vport->num_disc_nodes, vport->fc_plogi_cnt, | |
1135 | vport->fc_flag, vport->port_state); | |
dea3101e | 1136 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 JS |
1137 | if (vport->fc_flag & FC_NLP_MORE) |
1138 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ | |
1139 | sentplogi = lpfc_els_disc_plogi(vport); | |
1140 | ||
dea3101e JB |
1141 | return; |
1142 | } | |
1143 | ||
e59058c4 | 1144 | /** |
3621a710 | 1145 | * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp |
e59058c4 JS |
1146 | * @phba: pointer to lpfc hba data structure. |
1147 | * @prsp: pointer to response IOCB payload. | |
1148 | * @ndlp: pointer to a node-list data structure. | |
1149 | * | |
1150 | * This routine checks and indicates whether the WWPN of an N_Port, retrieved | |
1151 | * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt. | |
1152 | * The following cases are considered N_Port confirmed: | |
1153 | * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches | |
1154 | * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but | |
1155 | * it does not have WWPN assigned either. If the WWPN is confirmed, the | |
1156 | * pointer to the @ndlp will be returned. If the WWPN is not confirmed: | |
1157 | * 1) if there is a node on vport list other than the @ndlp with the same | |
1158 | * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked | |
1159 | * on that node to release the RPI associated with the node; 2) if there is | |
1160 | * no node found on vport list with the same WWPN of the N_Port PLOGI logged | |
1161 | * into, a new node shall be allocated (or activated). In either case, the | |
1162 | * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall | |
1163 | * be released and the new_ndlp shall be put on to the vport node list and | |
1164 | * its pointer returned as the confirmed node. | |
1165 | * | |
1166 | * Note that before the @ndlp got "released", the keepDID from not-matching | |
1167 | * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID | |
1168 | * of the @ndlp. This is because the release of @ndlp is actually to put it | |
1169 | * into an inactive state on the vport node list and the vport node list | |
1170 | * management algorithm does not allow two node with a same DID. | |
1171 | * | |
1172 | * Return code | |
1173 | * pointer to the PLOGI N_Port @ndlp | |
1174 | **/ | |
488d1469 | 1175 | static struct lpfc_nodelist * |
92d7f7b0 | 1176 | lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, |
488d1469 JS |
1177 | struct lpfc_nodelist *ndlp) |
1178 | { | |
2e0fef85 | 1179 | struct lpfc_vport *vport = ndlp->vport; |
488d1469 | 1180 | struct lpfc_nodelist *new_ndlp; |
0ff10d46 JS |
1181 | struct lpfc_rport_data *rdata; |
1182 | struct fc_rport *rport; | |
488d1469 | 1183 | struct serv_parm *sp; |
92d7f7b0 | 1184 | uint8_t name[sizeof(struct lpfc_name)]; |
58da1ffb | 1185 | uint32_t rc, keepDID = 0; |
488d1469 | 1186 | |
2fb9bd8b JS |
1187 | /* Fabric nodes can have the same WWPN so we don't bother searching |
1188 | * by WWPN. Just return the ndlp that was given to us. | |
1189 | */ | |
1190 | if (ndlp->nlp_type & NLP_FABRIC) | |
1191 | return ndlp; | |
1192 | ||
92d7f7b0 | 1193 | sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t)); |
685f0bf7 | 1194 | memset(name, 0, sizeof(struct lpfc_name)); |
488d1469 | 1195 | |
685f0bf7 | 1196 | /* Now we find out if the NPort we are logging into, matches the WWPN |
488d1469 JS |
1197 | * we have for that ndlp. If not, we have some work to do. |
1198 | */ | |
2e0fef85 | 1199 | new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName); |
488d1469 | 1200 | |
e47c9093 | 1201 | if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp)) |
488d1469 | 1202 | return ndlp; |
488d1469 JS |
1203 | |
1204 | if (!new_ndlp) { | |
2e0fef85 JS |
1205 | rc = memcmp(&ndlp->nlp_portname, name, |
1206 | sizeof(struct lpfc_name)); | |
92795650 JS |
1207 | if (!rc) |
1208 | return ndlp; | |
488d1469 JS |
1209 | new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC); |
1210 | if (!new_ndlp) | |
1211 | return ndlp; | |
2e0fef85 | 1212 | lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID); |
e47c9093 | 1213 | } else if (!NLP_CHK_NODE_ACT(new_ndlp)) { |
58da1ffb JS |
1214 | rc = memcmp(&ndlp->nlp_portname, name, |
1215 | sizeof(struct lpfc_name)); | |
1216 | if (!rc) | |
1217 | return ndlp; | |
e47c9093 JS |
1218 | new_ndlp = lpfc_enable_node(vport, new_ndlp, |
1219 | NLP_STE_UNUSED_NODE); | |
1220 | if (!new_ndlp) | |
1221 | return ndlp; | |
58da1ffb JS |
1222 | keepDID = new_ndlp->nlp_DID; |
1223 | } else | |
1224 | keepDID = new_ndlp->nlp_DID; | |
488d1469 | 1225 | |
2e0fef85 | 1226 | lpfc_unreg_rpi(vport, new_ndlp); |
488d1469 | 1227 | new_ndlp->nlp_DID = ndlp->nlp_DID; |
92795650 | 1228 | new_ndlp->nlp_prev_state = ndlp->nlp_prev_state; |
0ff10d46 JS |
1229 | |
1230 | if (ndlp->nlp_flag & NLP_NPR_2B_DISC) | |
1231 | new_ndlp->nlp_flag |= NLP_NPR_2B_DISC; | |
1232 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; | |
1233 | ||
e47c9093 | 1234 | /* Set state will put new_ndlp on to node list if not already done */ |
2e0fef85 | 1235 | lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state); |
488d1469 | 1236 | |
2e0fef85 | 1237 | /* Move this back to NPR state */ |
87af33fe JS |
1238 | if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) { |
1239 | /* The new_ndlp is replacing ndlp totally, so we need | |
1240 | * to put ndlp on UNUSED list and try to free it. | |
1241 | */ | |
0ff10d46 JS |
1242 | |
1243 | /* Fix up the rport accordingly */ | |
1244 | rport = ndlp->rport; | |
1245 | if (rport) { | |
1246 | rdata = rport->dd_data; | |
1247 | if (rdata->pnode == ndlp) { | |
1248 | lpfc_nlp_put(ndlp); | |
1249 | ndlp->rport = NULL; | |
1250 | rdata->pnode = lpfc_nlp_get(new_ndlp); | |
1251 | new_ndlp->rport = rport; | |
1252 | } | |
1253 | new_ndlp->nlp_type = ndlp->nlp_type; | |
1254 | } | |
58da1ffb JS |
1255 | /* We shall actually free the ndlp with both nlp_DID and |
1256 | * nlp_portname fields equals 0 to avoid any ndlp on the | |
1257 | * nodelist never to be used. | |
1258 | */ | |
1259 | if (ndlp->nlp_DID == 0) { | |
1260 | spin_lock_irq(&phba->ndlp_lock); | |
1261 | NLP_SET_FREE_REQ(ndlp); | |
1262 | spin_unlock_irq(&phba->ndlp_lock); | |
1263 | } | |
0ff10d46 | 1264 | |
58da1ffb JS |
1265 | /* Two ndlps cannot have the same did on the nodelist */ |
1266 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1267 | lpfc_drop_node(vport, ndlp); |
87af33fe | 1268 | } |
92795650 | 1269 | else { |
2e0fef85 | 1270 | lpfc_unreg_rpi(vport, ndlp); |
58da1ffb JS |
1271 | /* Two ndlps cannot have the same did */ |
1272 | ndlp->nlp_DID = keepDID; | |
2e0fef85 | 1273 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
92795650 | 1274 | } |
488d1469 JS |
1275 | return new_ndlp; |
1276 | } | |
1277 | ||
e59058c4 | 1278 | /** |
3621a710 | 1279 | * lpfc_end_rscn - Check and handle more rscn for a vport |
e59058c4 JS |
1280 | * @vport: pointer to a host virtual N_Port data structure. |
1281 | * | |
1282 | * This routine checks whether more Registration State Change | |
1283 | * Notifications (RSCNs) came in while the discovery state machine was in | |
1284 | * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be | |
1285 | * invoked to handle the additional RSCNs for the @vport. Otherwise, the | |
1286 | * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of | |
1287 | * handling the RSCNs. | |
1288 | **/ | |
87af33fe JS |
1289 | void |
1290 | lpfc_end_rscn(struct lpfc_vport *vport) | |
1291 | { | |
1292 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1293 | ||
1294 | if (vport->fc_flag & FC_RSCN_MODE) { | |
1295 | /* | |
1296 | * Check to see if more RSCNs came in while we were | |
1297 | * processing this one. | |
1298 | */ | |
1299 | if (vport->fc_rscn_id_cnt || | |
1300 | (vport->fc_flag & FC_RSCN_DISCOVERY) != 0) | |
1301 | lpfc_els_handle_rscn(vport); | |
1302 | else { | |
1303 | spin_lock_irq(shost->host_lock); | |
1304 | vport->fc_flag &= ~FC_RSCN_MODE; | |
1305 | spin_unlock_irq(shost->host_lock); | |
1306 | } | |
1307 | } | |
1308 | } | |
1309 | ||
e59058c4 | 1310 | /** |
3621a710 | 1311 | * lpfc_cmpl_els_plogi - Completion callback function for plogi |
e59058c4 JS |
1312 | * @phba: pointer to lpfc hba data structure. |
1313 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1314 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1315 | * | |
1316 | * This routine is the completion callback function for issuing the Port | |
1317 | * Login (PLOGI) command. For PLOGI completion, there must be an active | |
1318 | * ndlp on the vport node list that matches the remote node ID from the | |
1319 | * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply | |
1320 | * ignored and command IOCB released. The PLOGI response IOCB status is | |
1321 | * checked for error conditons. If there is error status reported, PLOGI | |
1322 | * retry shall be attempted by invoking the lpfc_els_retry() routine. | |
1323 | * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on | |
1324 | * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine | |
1325 | * (DSM) is set for this PLOGI completion. Finally, it checks whether | |
1326 | * there are additional N_Port nodes with the vport that need to perform | |
1327 | * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition | |
1328 | * PLOGIs. | |
1329 | **/ | |
dea3101e | 1330 | static void |
2e0fef85 JS |
1331 | lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1332 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1333 | { |
2e0fef85 JS |
1334 | struct lpfc_vport *vport = cmdiocb->vport; |
1335 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1336 | IOCB_t *irsp; |
dea3101e | 1337 | struct lpfc_nodelist *ndlp; |
92795650 | 1338 | struct lpfc_dmabuf *prsp; |
dea3101e JB |
1339 | int disc, rc, did, type; |
1340 | ||
dea3101e JB |
1341 | /* we pass cmdiocb to state machine which needs rspiocb as well */ |
1342 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1343 | ||
1344 | irsp = &rspiocb->iocb; | |
858c9f6c JS |
1345 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1346 | "PLOGI cmpl: status:x%x/x%x did:x%x", | |
1347 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1348 | irsp->un.elsreq64.remoteID); | |
1349 | ||
2e0fef85 | 1350 | ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID); |
e47c9093 | 1351 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
e8b62011 JS |
1352 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
1353 | "0136 PLOGI completes to NPort x%x " | |
1354 | "with no ndlp. Data: x%x x%x x%x\n", | |
1355 | irsp->un.elsreq64.remoteID, | |
1356 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1357 | irsp->ulpIoTag); | |
488d1469 | 1358 | goto out; |
ed957684 | 1359 | } |
dea3101e JB |
1360 | |
1361 | /* Since ndlp can be freed in the disc state machine, note if this node | |
1362 | * is being used during discovery. | |
1363 | */ | |
2e0fef85 | 1364 | spin_lock_irq(shost->host_lock); |
dea3101e | 1365 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
488d1469 | 1366 | ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 | 1367 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1368 | rc = 0; |
1369 | ||
1370 | /* PLOGI completes to NPort <nlp_DID> */ | |
e8b62011 JS |
1371 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1372 | "0102 PLOGI completes to NPort x%x " | |
1373 | "Data: x%x x%x x%x x%x x%x\n", | |
1374 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1375 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1376 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1377 | if (lpfc_els_chk_latt(vport)) { |
1378 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1379 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1380 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1381 | goto out; |
1382 | } | |
1383 | ||
1384 | /* ndlp could be freed in DSM, save these values now */ | |
1385 | type = ndlp->nlp_type; | |
1386 | did = ndlp->nlp_DID; | |
1387 | ||
1388 | if (irsp->ulpStatus) { | |
1389 | /* Check for retry */ | |
1390 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1391 | /* ELS command is being retried */ | |
1392 | if (disc) { | |
2e0fef85 | 1393 | spin_lock_irq(shost->host_lock); |
dea3101e | 1394 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1395 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1396 | } |
1397 | goto out; | |
1398 | } | |
dea3101e JB |
1399 | /* PLOGI failed */ |
1400 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1401 | if (lpfc_error_lost_link(irsp)) |
c9f8735b | 1402 | rc = NLP_STE_FREED_NODE; |
e47c9093 | 1403 | else |
2e0fef85 | 1404 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1405 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1406 | } else { |
1407 | /* Good status, call state machine */ | |
92795650 | 1408 | prsp = list_entry(((struct lpfc_dmabuf *) |
92d7f7b0 JS |
1409 | cmdiocb->context2)->list.next, |
1410 | struct lpfc_dmabuf, list); | |
1411 | ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp); | |
2e0fef85 | 1412 | rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1413 | NLP_EVT_CMPL_PLOGI); |
dea3101e JB |
1414 | } |
1415 | ||
2e0fef85 | 1416 | if (disc && vport->num_disc_nodes) { |
dea3101e | 1417 | /* Check to see if there are more PLOGIs to be sent */ |
2e0fef85 | 1418 | lpfc_more_plogi(vport); |
dea3101e | 1419 | |
2e0fef85 JS |
1420 | if (vport->num_disc_nodes == 0) { |
1421 | spin_lock_irq(shost->host_lock); | |
1422 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1423 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 1424 | |
2e0fef85 | 1425 | lpfc_can_disctmo(vport); |
87af33fe | 1426 | lpfc_end_rscn(vport); |
dea3101e JB |
1427 | } |
1428 | } | |
1429 | ||
1430 | out: | |
1431 | lpfc_els_free_iocb(phba, cmdiocb); | |
1432 | return; | |
1433 | } | |
1434 | ||
e59058c4 | 1435 | /** |
3621a710 | 1436 | * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport |
e59058c4 JS |
1437 | * @vport: pointer to a host virtual N_Port data structure. |
1438 | * @did: destination port identifier. | |
1439 | * @retry: number of retries to the command IOCB. | |
1440 | * | |
1441 | * This routine issues a Port Login (PLOGI) command to a remote N_Port | |
1442 | * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port, | |
1443 | * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list. | |
1444 | * This routine constructs the proper feilds of the PLOGI IOCB and invokes | |
1445 | * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command. | |
1446 | * | |
1447 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1448 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1449 | * will be stored into the context1 field of the IOCB for the completion | |
1450 | * callback function to the PLOGI ELS command. | |
1451 | * | |
1452 | * Return code | |
1453 | * 0 - Successfully issued a plogi for @vport | |
1454 | * 1 - failed to issue a plogi for @vport | |
1455 | **/ | |
dea3101e | 1456 | int |
2e0fef85 | 1457 | lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) |
dea3101e | 1458 | { |
2e0fef85 | 1459 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
1460 | struct serv_parm *sp; |
1461 | IOCB_t *icmd; | |
98c9ea5c | 1462 | struct lpfc_nodelist *ndlp; |
dea3101e | 1463 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
1464 | struct lpfc_sli *psli; |
1465 | uint8_t *pcmd; | |
1466 | uint16_t cmdsize; | |
92d7f7b0 | 1467 | int ret; |
dea3101e JB |
1468 | |
1469 | psli = &phba->sli; | |
dea3101e | 1470 | |
98c9ea5c | 1471 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
1472 | if (ndlp && !NLP_CHK_NODE_ACT(ndlp)) |
1473 | ndlp = NULL; | |
98c9ea5c | 1474 | |
e47c9093 | 1475 | /* If ndlp is not NULL, we will bump the reference count on it */ |
92d7f7b0 | 1476 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
98c9ea5c | 1477 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, |
2e0fef85 | 1478 | ELS_CMD_PLOGI); |
c9f8735b JW |
1479 | if (!elsiocb) |
1480 | return 1; | |
dea3101e JB |
1481 | |
1482 | icmd = &elsiocb->iocb; | |
1483 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1484 | ||
1485 | /* For PLOGI request, remainder of payload is service parameters */ | |
1486 | *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI; | |
92d7f7b0 JS |
1487 | pcmd += sizeof(uint32_t); |
1488 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
dea3101e JB |
1489 | sp = (struct serv_parm *) pcmd; |
1490 | ||
1491 | if (sp->cmn.fcphLow < FC_PH_4_3) | |
1492 | sp->cmn.fcphLow = FC_PH_4_3; | |
1493 | ||
1494 | if (sp->cmn.fcphHigh < FC_PH3) | |
1495 | sp->cmn.fcphHigh = FC_PH3; | |
1496 | ||
858c9f6c JS |
1497 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1498 | "Issue PLOGI: did:x%x", | |
1499 | did, 0, 0); | |
1500 | ||
dea3101e JB |
1501 | phba->fc_stat.elsXmitPLOGI++; |
1502 | elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi; | |
3772a991 | 1503 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
1504 | |
1505 | if (ret == IOCB_ERROR) { | |
dea3101e | 1506 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1507 | return 1; |
dea3101e | 1508 | } |
c9f8735b | 1509 | return 0; |
dea3101e JB |
1510 | } |
1511 | ||
e59058c4 | 1512 | /** |
3621a710 | 1513 | * lpfc_cmpl_els_prli - Completion callback function for prli |
e59058c4 JS |
1514 | * @phba: pointer to lpfc hba data structure. |
1515 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1516 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1517 | * | |
1518 | * This routine is the completion callback function for a Process Login | |
1519 | * (PRLI) ELS command. The PRLI response IOCB status is checked for error | |
1520 | * status. If there is error status reported, PRLI retry shall be attempted | |
1521 | * by invoking the lpfc_els_retry() routine. Otherwise, the state | |
1522 | * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this | |
1523 | * ndlp to mark the PRLI completion. | |
1524 | **/ | |
dea3101e | 1525 | static void |
2e0fef85 JS |
1526 | lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1527 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1528 | { |
2e0fef85 JS |
1529 | struct lpfc_vport *vport = cmdiocb->vport; |
1530 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1531 | IOCB_t *irsp; |
1532 | struct lpfc_sli *psli; | |
1533 | struct lpfc_nodelist *ndlp; | |
1534 | ||
1535 | psli = &phba->sli; | |
1536 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1537 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1538 | ||
1539 | irsp = &(rspiocb->iocb); | |
1540 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2e0fef85 | 1541 | spin_lock_irq(shost->host_lock); |
dea3101e | 1542 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1543 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1544 | |
858c9f6c JS |
1545 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1546 | "PRLI cmpl: status:x%x/x%x did:x%x", | |
1547 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1548 | ndlp->nlp_DID); | |
dea3101e | 1549 | /* PRLI completes to NPort <nlp_DID> */ |
e8b62011 JS |
1550 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1551 | "0103 PRLI completes to NPort x%x " | |
1552 | "Data: x%x x%x x%x x%x\n", | |
1553 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1554 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1555 | |
2e0fef85 | 1556 | vport->fc_prli_sent--; |
dea3101e | 1557 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1558 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1559 | goto out; |
1560 | ||
1561 | if (irsp->ulpStatus) { | |
1562 | /* Check for retry */ | |
1563 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1564 | /* ELS command is being retried */ | |
1565 | goto out; | |
1566 | } | |
1567 | /* PRLI failed */ | |
1568 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1569 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 1570 | goto out; |
e47c9093 | 1571 | else |
2e0fef85 | 1572 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1573 | NLP_EVT_CMPL_PRLI); |
e47c9093 | 1574 | } else |
dea3101e | 1575 | /* Good status, call state machine */ |
2e0fef85 | 1576 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 1577 | NLP_EVT_CMPL_PRLI); |
dea3101e JB |
1578 | out: |
1579 | lpfc_els_free_iocb(phba, cmdiocb); | |
1580 | return; | |
1581 | } | |
1582 | ||
e59058c4 | 1583 | /** |
3621a710 | 1584 | * lpfc_issue_els_prli - Issue a prli iocb command for a vport |
e59058c4 JS |
1585 | * @vport: pointer to a host virtual N_Port data structure. |
1586 | * @ndlp: pointer to a node-list data structure. | |
1587 | * @retry: number of retries to the command IOCB. | |
1588 | * | |
1589 | * This routine issues a Process Login (PRLI) ELS command for the | |
1590 | * @vport. The PRLI service parameters are set up in the payload of the | |
1591 | * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine | |
1592 | * is put to the IOCB completion callback func field before invoking the | |
1593 | * routine lpfc_sli_issue_iocb() to send out PRLI command. | |
1594 | * | |
1595 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1596 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1597 | * will be stored into the context1 field of the IOCB for the completion | |
1598 | * callback function to the PRLI ELS command. | |
1599 | * | |
1600 | * Return code | |
1601 | * 0 - successfully issued prli iocb command for @vport | |
1602 | * 1 - failed to issue prli iocb command for @vport | |
1603 | **/ | |
dea3101e | 1604 | int |
2e0fef85 | 1605 | lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1606 | uint8_t retry) |
1607 | { | |
2e0fef85 JS |
1608 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1609 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1610 | PRLI *npr; |
1611 | IOCB_t *icmd; | |
1612 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1613 | uint8_t *pcmd; |
1614 | uint16_t cmdsize; | |
1615 | ||
92d7f7b0 | 1616 | cmdsize = (sizeof(uint32_t) + sizeof(PRLI)); |
2e0fef85 JS |
1617 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1618 | ndlp->nlp_DID, ELS_CMD_PRLI); | |
488d1469 | 1619 | if (!elsiocb) |
c9f8735b | 1620 | return 1; |
dea3101e JB |
1621 | |
1622 | icmd = &elsiocb->iocb; | |
1623 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1624 | ||
1625 | /* For PRLI request, remainder of payload is service parameters */ | |
92d7f7b0 | 1626 | memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t))); |
dea3101e | 1627 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLI; |
92d7f7b0 | 1628 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1629 | |
1630 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
1631 | npr = (PRLI *) pcmd; | |
1632 | /* | |
1633 | * If our firmware version is 3.20 or later, | |
1634 | * set the following bits for FC-TAPE support. | |
1635 | */ | |
1636 | if (phba->vpd.rev.feaLevelHigh >= 0x02) { | |
1637 | npr->ConfmComplAllowed = 1; | |
1638 | npr->Retry = 1; | |
1639 | npr->TaskRetryIdReq = 1; | |
1640 | } | |
1641 | npr->estabImagePair = 1; | |
1642 | npr->readXferRdyDis = 1; | |
1643 | ||
1644 | /* For FCP support */ | |
1645 | npr->prliType = PRLI_FCP_TYPE; | |
1646 | npr->initiatorFunc = 1; | |
1647 | ||
858c9f6c JS |
1648 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1649 | "Issue PRLI: did:x%x", | |
1650 | ndlp->nlp_DID, 0, 0); | |
1651 | ||
dea3101e JB |
1652 | phba->fc_stat.elsXmitPRLI++; |
1653 | elsiocb->iocb_cmpl = lpfc_cmpl_els_prli; | |
2e0fef85 | 1654 | spin_lock_irq(shost->host_lock); |
dea3101e | 1655 | ndlp->nlp_flag |= NLP_PRLI_SND; |
2e0fef85 | 1656 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1657 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1658 | IOCB_ERROR) { | |
2e0fef85 | 1659 | spin_lock_irq(shost->host_lock); |
dea3101e | 1660 | ndlp->nlp_flag &= ~NLP_PRLI_SND; |
2e0fef85 | 1661 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1662 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1663 | return 1; |
dea3101e | 1664 | } |
2e0fef85 | 1665 | vport->fc_prli_sent++; |
c9f8735b | 1666 | return 0; |
dea3101e JB |
1667 | } |
1668 | ||
90160e01 | 1669 | /** |
3621a710 | 1670 | * lpfc_rscn_disc - Perform rscn discovery for a vport |
90160e01 JS |
1671 | * @vport: pointer to a host virtual N_Port data structure. |
1672 | * | |
1673 | * This routine performs Registration State Change Notification (RSCN) | |
1674 | * discovery for a @vport. If the @vport's node port recovery count is not | |
1675 | * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all | |
1676 | * the nodes that need recovery. If none of the PLOGI were needed through | |
1677 | * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be | |
1678 | * invoked to check and handle possible more RSCN came in during the period | |
1679 | * of processing the current ones. | |
1680 | **/ | |
1681 | static void | |
1682 | lpfc_rscn_disc(struct lpfc_vport *vport) | |
1683 | { | |
1684 | lpfc_can_disctmo(vport); | |
1685 | ||
1686 | /* RSCN discovery */ | |
1687 | /* go thru NPR nodes and issue ELS PLOGIs */ | |
1688 | if (vport->fc_npr_cnt) | |
1689 | if (lpfc_els_disc_plogi(vport)) | |
1690 | return; | |
1691 | ||
1692 | lpfc_end_rscn(vport); | |
1693 | } | |
1694 | ||
1695 | /** | |
3621a710 | 1696 | * lpfc_adisc_done - Complete the adisc phase of discovery |
90160e01 JS |
1697 | * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs. |
1698 | * | |
1699 | * This function is called when the final ADISC is completed during discovery. | |
1700 | * This function handles clearing link attention or issuing reg_vpi depending | |
1701 | * on whether npiv is enabled. This function also kicks off the PLOGI phase of | |
1702 | * discovery. | |
1703 | * This function is called with no locks held. | |
1704 | **/ | |
1705 | static void | |
1706 | lpfc_adisc_done(struct lpfc_vport *vport) | |
1707 | { | |
1708 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
1709 | struct lpfc_hba *phba = vport->phba; | |
1710 | ||
1711 | /* | |
1712 | * For NPIV, cmpl_reg_vpi will set port_state to READY, | |
1713 | * and continue discovery. | |
1714 | */ | |
1715 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
6fb120a7 JS |
1716 | !(vport->fc_flag & FC_RSCN_MODE) && |
1717 | (phba->sli_rev < LPFC_SLI_REV4)) { | |
90160e01 JS |
1718 | lpfc_issue_reg_vpi(phba, vport); |
1719 | return; | |
1720 | } | |
1721 | /* | |
1722 | * For SLI2, we need to set port_state to READY | |
1723 | * and continue discovery. | |
1724 | */ | |
1725 | if (vport->port_state < LPFC_VPORT_READY) { | |
1726 | /* If we get here, there is nothing to ADISC */ | |
1727 | if (vport->port_type == LPFC_PHYSICAL_PORT) | |
1728 | lpfc_issue_clear_la(phba, vport); | |
1729 | if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) { | |
1730 | vport->num_disc_nodes = 0; | |
1731 | /* go thru NPR list, issue ELS PLOGIs */ | |
1732 | if (vport->fc_npr_cnt) | |
1733 | lpfc_els_disc_plogi(vport); | |
1734 | if (!vport->num_disc_nodes) { | |
1735 | spin_lock_irq(shost->host_lock); | |
1736 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
1737 | spin_unlock_irq(shost->host_lock); | |
1738 | lpfc_can_disctmo(vport); | |
1739 | lpfc_end_rscn(vport); | |
1740 | } | |
1741 | } | |
1742 | vport->port_state = LPFC_VPORT_READY; | |
1743 | } else | |
1744 | lpfc_rscn_disc(vport); | |
1745 | } | |
1746 | ||
e59058c4 | 1747 | /** |
3621a710 | 1748 | * lpfc_more_adisc - Issue more adisc as needed |
e59058c4 JS |
1749 | * @vport: pointer to a host virtual N_Port data structure. |
1750 | * | |
1751 | * This routine determines whether there are more ndlps on a @vport | |
1752 | * node list need to have Address Discover (ADISC) issued. If so, it will | |
1753 | * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's | |
1754 | * remaining nodes which need to have ADISC sent. | |
1755 | **/ | |
0ff10d46 | 1756 | void |
2e0fef85 | 1757 | lpfc_more_adisc(struct lpfc_vport *vport) |
dea3101e JB |
1758 | { |
1759 | int sentadisc; | |
1760 | ||
2e0fef85 JS |
1761 | if (vport->num_disc_nodes) |
1762 | vport->num_disc_nodes--; | |
dea3101e | 1763 | /* Continue discovery with <num_disc_nodes> ADISCs to go */ |
e8b62011 JS |
1764 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
1765 | "0210 Continue discovery with %d ADISCs to go " | |
1766 | "Data: x%x x%x x%x\n", | |
1767 | vport->num_disc_nodes, vport->fc_adisc_cnt, | |
1768 | vport->fc_flag, vport->port_state); | |
dea3101e | 1769 | /* Check to see if there are more ADISCs to be sent */ |
2e0fef85 JS |
1770 | if (vport->fc_flag & FC_NLP_MORE) { |
1771 | lpfc_set_disctmo(vport); | |
1772 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ | |
1773 | sentadisc = lpfc_els_disc_adisc(vport); | |
dea3101e | 1774 | } |
90160e01 JS |
1775 | if (!vport->num_disc_nodes) |
1776 | lpfc_adisc_done(vport); | |
dea3101e JB |
1777 | return; |
1778 | } | |
1779 | ||
e59058c4 | 1780 | /** |
3621a710 | 1781 | * lpfc_cmpl_els_adisc - Completion callback function for adisc |
e59058c4 JS |
1782 | * @phba: pointer to lpfc hba data structure. |
1783 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1784 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1785 | * | |
1786 | * This routine is the completion function for issuing the Address Discover | |
1787 | * (ADISC) command. It first checks to see whether link went down during | |
1788 | * the discovery process. If so, the node will be marked as node port | |
1789 | * recovery for issuing discover IOCB by the link attention handler and | |
1790 | * exit. Otherwise, the response status is checked. If error was reported | |
1791 | * in the response status, the ADISC command shall be retried by invoking | |
1792 | * the lpfc_els_retry() routine. Otherwise, if no error was reported in | |
1793 | * the response status, the state machine is invoked to set transition | |
1794 | * with respect to NLP_EVT_CMPL_ADISC event. | |
1795 | **/ | |
dea3101e | 1796 | static void |
2e0fef85 JS |
1797 | lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1798 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1799 | { |
2e0fef85 JS |
1800 | struct lpfc_vport *vport = cmdiocb->vport; |
1801 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e | 1802 | IOCB_t *irsp; |
dea3101e | 1803 | struct lpfc_nodelist *ndlp; |
2e0fef85 | 1804 | int disc; |
dea3101e JB |
1805 | |
1806 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1807 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1808 | ||
1809 | irsp = &(rspiocb->iocb); | |
1810 | ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
dea3101e | 1811 | |
858c9f6c JS |
1812 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1813 | "ADISC cmpl: status:x%x/x%x did:x%x", | |
1814 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1815 | ndlp->nlp_DID); | |
1816 | ||
dea3101e JB |
1817 | /* Since ndlp can be freed in the disc state machine, note if this node |
1818 | * is being used during discovery. | |
1819 | */ | |
2e0fef85 | 1820 | spin_lock_irq(shost->host_lock); |
dea3101e | 1821 | disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC); |
c9f8735b | 1822 | ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC); |
2e0fef85 | 1823 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1824 | /* ADISC completes to NPort <nlp_DID> */ |
e8b62011 JS |
1825 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1826 | "0104 ADISC completes to NPort x%x " | |
1827 | "Data: x%x x%x x%x x%x x%x\n", | |
1828 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1829 | irsp->ulpTimeout, disc, vport->num_disc_nodes); | |
dea3101e | 1830 | /* Check to see if link went down during discovery */ |
2e0fef85 JS |
1831 | if (lpfc_els_chk_latt(vport)) { |
1832 | spin_lock_irq(shost->host_lock); | |
dea3101e | 1833 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 | 1834 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
1835 | goto out; |
1836 | } | |
1837 | ||
1838 | if (irsp->ulpStatus) { | |
1839 | /* Check for retry */ | |
1840 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) { | |
1841 | /* ELS command is being retried */ | |
1842 | if (disc) { | |
2e0fef85 | 1843 | spin_lock_irq(shost->host_lock); |
dea3101e | 1844 | ndlp->nlp_flag |= NLP_NPR_2B_DISC; |
2e0fef85 JS |
1845 | spin_unlock_irq(shost->host_lock); |
1846 | lpfc_set_disctmo(vport); | |
dea3101e JB |
1847 | } |
1848 | goto out; | |
1849 | } | |
1850 | /* ADISC failed */ | |
1851 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
e47c9093 | 1852 | if (!lpfc_error_lost_link(irsp)) |
2e0fef85 | 1853 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
858c9f6c | 1854 | NLP_EVT_CMPL_ADISC); |
e47c9093 | 1855 | } else |
dea3101e | 1856 | /* Good status, call state machine */ |
2e0fef85 | 1857 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
dea3101e | 1858 | NLP_EVT_CMPL_ADISC); |
dea3101e | 1859 | |
90160e01 JS |
1860 | /* Check to see if there are more ADISCs to be sent */ |
1861 | if (disc && vport->num_disc_nodes) | |
2e0fef85 | 1862 | lpfc_more_adisc(vport); |
dea3101e JB |
1863 | out: |
1864 | lpfc_els_free_iocb(phba, cmdiocb); | |
1865 | return; | |
1866 | } | |
1867 | ||
e59058c4 | 1868 | /** |
3621a710 | 1869 | * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport |
e59058c4 JS |
1870 | * @vport: pointer to a virtual N_Port data structure. |
1871 | * @ndlp: pointer to a node-list data structure. | |
1872 | * @retry: number of retries to the command IOCB. | |
1873 | * | |
1874 | * This routine issues an Address Discover (ADISC) for an @ndlp on a | |
1875 | * @vport. It prepares the payload of the ADISC ELS command, updates the | |
1876 | * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine | |
1877 | * to issue the ADISC ELS command. | |
1878 | * | |
1879 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
1880 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
1881 | * will be stored into the context1 field of the IOCB for the completion | |
1882 | * callback function to the ADISC ELS command. | |
1883 | * | |
1884 | * Return code | |
1885 | * 0 - successfully issued adisc | |
1886 | * 1 - failed to issue adisc | |
1887 | **/ | |
dea3101e | 1888 | int |
2e0fef85 | 1889 | lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
1890 | uint8_t retry) |
1891 | { | |
2e0fef85 JS |
1892 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
1893 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
1894 | ADISC *ap; |
1895 | IOCB_t *icmd; | |
1896 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
1897 | uint8_t *pcmd; |
1898 | uint16_t cmdsize; | |
1899 | ||
92d7f7b0 | 1900 | cmdsize = (sizeof(uint32_t) + sizeof(ADISC)); |
2e0fef85 JS |
1901 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
1902 | ndlp->nlp_DID, ELS_CMD_ADISC); | |
488d1469 | 1903 | if (!elsiocb) |
c9f8735b | 1904 | return 1; |
dea3101e JB |
1905 | |
1906 | icmd = &elsiocb->iocb; | |
1907 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
1908 | ||
1909 | /* For ADISC request, remainder of payload is service parameters */ | |
1910 | *((uint32_t *) (pcmd)) = ELS_CMD_ADISC; | |
92d7f7b0 | 1911 | pcmd += sizeof(uint32_t); |
dea3101e JB |
1912 | |
1913 | /* Fill in ADISC payload */ | |
1914 | ap = (ADISC *) pcmd; | |
1915 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
1916 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
1917 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 1918 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 1919 | |
858c9f6c JS |
1920 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1921 | "Issue ADISC: did:x%x", | |
1922 | ndlp->nlp_DID, 0, 0); | |
1923 | ||
dea3101e JB |
1924 | phba->fc_stat.elsXmitADISC++; |
1925 | elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc; | |
2e0fef85 | 1926 | spin_lock_irq(shost->host_lock); |
dea3101e | 1927 | ndlp->nlp_flag |= NLP_ADISC_SND; |
2e0fef85 | 1928 | spin_unlock_irq(shost->host_lock); |
3772a991 JS |
1929 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
1930 | IOCB_ERROR) { | |
2e0fef85 | 1931 | spin_lock_irq(shost->host_lock); |
dea3101e | 1932 | ndlp->nlp_flag &= ~NLP_ADISC_SND; |
2e0fef85 | 1933 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1934 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 1935 | return 1; |
dea3101e | 1936 | } |
c9f8735b | 1937 | return 0; |
dea3101e JB |
1938 | } |
1939 | ||
e59058c4 | 1940 | /** |
3621a710 | 1941 | * lpfc_cmpl_els_logo - Completion callback function for logo |
e59058c4 JS |
1942 | * @phba: pointer to lpfc hba data structure. |
1943 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
1944 | * @rspiocb: pointer to lpfc response iocb data structure. | |
1945 | * | |
1946 | * This routine is the completion function for issuing the ELS Logout (LOGO) | |
1947 | * command. If no error status was reported from the LOGO response, the | |
1948 | * state machine of the associated ndlp shall be invoked for transition with | |
1949 | * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported, | |
1950 | * the lpfc_els_retry() routine will be invoked to retry the LOGO command. | |
1951 | **/ | |
dea3101e | 1952 | static void |
2e0fef85 JS |
1953 | lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
1954 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 1955 | { |
2e0fef85 JS |
1956 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
1957 | struct lpfc_vport *vport = ndlp->vport; | |
1958 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
dea3101e JB |
1959 | IOCB_t *irsp; |
1960 | struct lpfc_sli *psli; | |
dea3101e JB |
1961 | |
1962 | psli = &phba->sli; | |
1963 | /* we pass cmdiocb to state machine which needs rspiocb as well */ | |
1964 | cmdiocb->context_un.rsp_iocb = rspiocb; | |
1965 | ||
1966 | irsp = &(rspiocb->iocb); | |
2e0fef85 | 1967 | spin_lock_irq(shost->host_lock); |
dea3101e | 1968 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 1969 | spin_unlock_irq(shost->host_lock); |
dea3101e | 1970 | |
858c9f6c JS |
1971 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
1972 | "LOGO cmpl: status:x%x/x%x did:x%x", | |
1973 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
1974 | ndlp->nlp_DID); | |
dea3101e | 1975 | /* LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
1976 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
1977 | "0105 LOGO completes to NPort x%x " | |
1978 | "Data: x%x x%x x%x x%x\n", | |
1979 | ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4], | |
1980 | irsp->ulpTimeout, vport->num_disc_nodes); | |
dea3101e | 1981 | /* Check to see if link went down during discovery */ |
2e0fef85 | 1982 | if (lpfc_els_chk_latt(vport)) |
dea3101e JB |
1983 | goto out; |
1984 | ||
92d7f7b0 JS |
1985 | if (ndlp->nlp_flag & NLP_TARGET_REMOVE) { |
1986 | /* NLP_EVT_DEVICE_RM should unregister the RPI | |
1987 | * which should abort all outstanding IOs. | |
1988 | */ | |
1989 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, | |
1990 | NLP_EVT_DEVICE_RM); | |
1991 | goto out; | |
1992 | } | |
1993 | ||
dea3101e JB |
1994 | if (irsp->ulpStatus) { |
1995 | /* Check for retry */ | |
2e0fef85 | 1996 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) |
dea3101e JB |
1997 | /* ELS command is being retried */ |
1998 | goto out; | |
dea3101e JB |
1999 | /* LOGO failed */ |
2000 | /* Do not call DSM for lpfc_els_abort'ed ELS cmds */ | |
858c9f6c | 2001 | if (lpfc_error_lost_link(irsp)) |
dea3101e | 2002 | goto out; |
858c9f6c | 2003 | else |
2e0fef85 | 2004 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2005 | NLP_EVT_CMPL_LOGO); |
e47c9093 | 2006 | } else |
5024ab17 JW |
2007 | /* Good status, call state machine. |
2008 | * This will unregister the rpi if needed. | |
2009 | */ | |
2e0fef85 | 2010 | lpfc_disc_state_machine(vport, ndlp, cmdiocb, |
92d7f7b0 | 2011 | NLP_EVT_CMPL_LOGO); |
dea3101e JB |
2012 | out: |
2013 | lpfc_els_free_iocb(phba, cmdiocb); | |
2014 | return; | |
2015 | } | |
2016 | ||
e59058c4 | 2017 | /** |
3621a710 | 2018 | * lpfc_issue_els_logo - Issue a logo to an node on a vport |
e59058c4 JS |
2019 | * @vport: pointer to a virtual N_Port data structure. |
2020 | * @ndlp: pointer to a node-list data structure. | |
2021 | * @retry: number of retries to the command IOCB. | |
2022 | * | |
2023 | * This routine constructs and issues an ELS Logout (LOGO) iocb command | |
2024 | * to a remote node, referred by an @ndlp on a @vport. It constructs the | |
2025 | * payload of the IOCB, properly sets up the @ndlp state, and invokes the | |
2026 | * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command. | |
2027 | * | |
2028 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2029 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2030 | * will be stored into the context1 field of the IOCB for the completion | |
2031 | * callback function to the LOGO ELS command. | |
2032 | * | |
2033 | * Return code | |
2034 | * 0 - successfully issued logo | |
2035 | * 1 - failed to issue logo | |
2036 | **/ | |
dea3101e | 2037 | int |
2e0fef85 | 2038 | lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
dea3101e JB |
2039 | uint8_t retry) |
2040 | { | |
2e0fef85 JS |
2041 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
2042 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
2043 | IOCB_t *icmd; |
2044 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2045 | uint8_t *pcmd; |
2046 | uint16_t cmdsize; | |
92d7f7b0 | 2047 | int rc; |
dea3101e | 2048 | |
98c9ea5c JS |
2049 | spin_lock_irq(shost->host_lock); |
2050 | if (ndlp->nlp_flag & NLP_LOGO_SND) { | |
2051 | spin_unlock_irq(shost->host_lock); | |
2052 | return 0; | |
2053 | } | |
2054 | spin_unlock_irq(shost->host_lock); | |
2055 | ||
92d7f7b0 | 2056 | cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name); |
2e0fef85 JS |
2057 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, |
2058 | ndlp->nlp_DID, ELS_CMD_LOGO); | |
488d1469 | 2059 | if (!elsiocb) |
c9f8735b | 2060 | return 1; |
dea3101e JB |
2061 | |
2062 | icmd = &elsiocb->iocb; | |
2063 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2064 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
92d7f7b0 | 2065 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2066 | |
2067 | /* Fill in LOGO payload */ | |
2e0fef85 | 2068 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); |
92d7f7b0 JS |
2069 | pcmd += sizeof(uint32_t); |
2070 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
dea3101e | 2071 | |
858c9f6c JS |
2072 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2073 | "Issue LOGO: did:x%x", | |
2074 | ndlp->nlp_DID, 0, 0); | |
2075 | ||
dea3101e JB |
2076 | phba->fc_stat.elsXmitLOGO++; |
2077 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo; | |
2e0fef85 | 2078 | spin_lock_irq(shost->host_lock); |
dea3101e | 2079 | ndlp->nlp_flag |= NLP_LOGO_SND; |
2e0fef85 | 2080 | spin_unlock_irq(shost->host_lock); |
3772a991 | 2081 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
92d7f7b0 JS |
2082 | |
2083 | if (rc == IOCB_ERROR) { | |
2e0fef85 | 2084 | spin_lock_irq(shost->host_lock); |
dea3101e | 2085 | ndlp->nlp_flag &= ~NLP_LOGO_SND; |
2e0fef85 | 2086 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2087 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2088 | return 1; |
dea3101e | 2089 | } |
c9f8735b | 2090 | return 0; |
dea3101e JB |
2091 | } |
2092 | ||
e59058c4 | 2093 | /** |
3621a710 | 2094 | * lpfc_cmpl_els_cmd - Completion callback function for generic els command |
e59058c4 JS |
2095 | * @phba: pointer to lpfc hba data structure. |
2096 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2097 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2098 | * | |
2099 | * This routine is a generic completion callback function for ELS commands. | |
2100 | * Specifically, it is the callback function which does not need to perform | |
2101 | * any command specific operations. It is currently used by the ELS command | |
2102 | * issuing routines for the ELS State Change Request (SCR), | |
2103 | * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution | |
2104 | * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than | |
2105 | * certain debug loggings, this callback function simply invokes the | |
2106 | * lpfc_els_chk_latt() routine to check whether link went down during the | |
2107 | * discovery process. | |
2108 | **/ | |
dea3101e | 2109 | static void |
2e0fef85 JS |
2110 | lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2111 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2112 | { |
2e0fef85 | 2113 | struct lpfc_vport *vport = cmdiocb->vport; |
dea3101e JB |
2114 | IOCB_t *irsp; |
2115 | ||
2116 | irsp = &rspiocb->iocb; | |
2117 | ||
858c9f6c JS |
2118 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2119 | "ELS cmd cmpl: status:x%x/x%x did:x%x", | |
2120 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
2121 | irsp->un.elsreq64.remoteID); | |
dea3101e | 2122 | /* ELS cmd tag <ulpIoTag> completes */ |
e8b62011 JS |
2123 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2124 | "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n", | |
2125 | irsp->ulpIoTag, irsp->ulpStatus, | |
2126 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
dea3101e | 2127 | /* Check to see if link went down during discovery */ |
2e0fef85 | 2128 | lpfc_els_chk_latt(vport); |
dea3101e JB |
2129 | lpfc_els_free_iocb(phba, cmdiocb); |
2130 | return; | |
2131 | } | |
2132 | ||
e59058c4 | 2133 | /** |
3621a710 | 2134 | * lpfc_issue_els_scr - Issue a scr to an node on a vport |
e59058c4 JS |
2135 | * @vport: pointer to a host virtual N_Port data structure. |
2136 | * @nportid: N_Port identifier to the remote node. | |
2137 | * @retry: number of retries to the command IOCB. | |
2138 | * | |
2139 | * This routine issues a State Change Request (SCR) to a fabric node | |
2140 | * on a @vport. The remote node @nportid is passed into the function. It | |
2141 | * first search the @vport node list to find the matching ndlp. If no such | |
2142 | * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An | |
2143 | * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb() | |
2144 | * routine is invoked to send the SCR IOCB. | |
2145 | * | |
2146 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2147 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2148 | * will be stored into the context1 field of the IOCB for the completion | |
2149 | * callback function to the SCR ELS command. | |
2150 | * | |
2151 | * Return code | |
2152 | * 0 - Successfully issued scr command | |
2153 | * 1 - Failed to issue scr command | |
2154 | **/ | |
dea3101e | 2155 | int |
2e0fef85 | 2156 | lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2157 | { |
2e0fef85 | 2158 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2159 | IOCB_t *icmd; |
2160 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2161 | struct lpfc_sli *psli; |
2162 | uint8_t *pcmd; | |
2163 | uint16_t cmdsize; | |
2164 | struct lpfc_nodelist *ndlp; | |
2165 | ||
2166 | psli = &phba->sli; | |
92d7f7b0 | 2167 | cmdsize = (sizeof(uint32_t) + sizeof(SCR)); |
dea3101e | 2168 | |
e47c9093 JS |
2169 | ndlp = lpfc_findnode_did(vport, nportid); |
2170 | if (!ndlp) { | |
2171 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2172 | if (!ndlp) | |
2173 | return 1; | |
2174 | lpfc_nlp_init(vport, ndlp, nportid); | |
2175 | lpfc_enqueue_node(vport, ndlp); | |
2176 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2177 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2178 | if (!ndlp) | |
2179 | return 1; | |
2180 | } | |
2e0fef85 JS |
2181 | |
2182 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2183 | ndlp->nlp_DID, ELS_CMD_SCR); | |
dea3101e | 2184 | |
488d1469 | 2185 | if (!elsiocb) { |
fa4066b6 JS |
2186 | /* This will trigger the release of the node just |
2187 | * allocated | |
2188 | */ | |
329f9bc7 | 2189 | lpfc_nlp_put(ndlp); |
c9f8735b | 2190 | return 1; |
dea3101e JB |
2191 | } |
2192 | ||
2193 | icmd = &elsiocb->iocb; | |
2194 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2195 | ||
2196 | *((uint32_t *) (pcmd)) = ELS_CMD_SCR; | |
92d7f7b0 | 2197 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2198 | |
2199 | /* For SCR, remainder of payload is SCR parameter page */ | |
92d7f7b0 | 2200 | memset(pcmd, 0, sizeof(SCR)); |
dea3101e JB |
2201 | ((SCR *) pcmd)->Function = SCR_FUNC_FULL; |
2202 | ||
858c9f6c JS |
2203 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2204 | "Issue SCR: did:x%x", | |
2205 | ndlp->nlp_DID, 0, 0); | |
2206 | ||
dea3101e JB |
2207 | phba->fc_stat.elsXmitSCR++; |
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 rlease 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 node. | |
2221 | */ | |
329f9bc7 | 2222 | lpfc_nlp_put(ndlp); |
c9f8735b | 2223 | return 0; |
dea3101e JB |
2224 | } |
2225 | ||
e59058c4 | 2226 | /** |
3621a710 | 2227 | * lpfc_issue_els_farpr - Issue a farp to an node on a vport |
e59058c4 JS |
2228 | * @vport: pointer to a host virtual N_Port data structure. |
2229 | * @nportid: N_Port identifier to the remote node. | |
2230 | * @retry: number of retries to the command IOCB. | |
2231 | * | |
2232 | * This routine issues a Fibre Channel Address Resolution Response | |
2233 | * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid) | |
2234 | * is passed into the function. It first search the @vport node list to find | |
2235 | * the matching ndlp. If no such ndlp is found, a new ndlp shall be created | |
2236 | * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the | |
2237 | * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command. | |
2238 | * | |
2239 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
2240 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
2241 | * will be stored into the context1 field of the IOCB for the completion | |
2242 | * callback function to the PARPR ELS command. | |
2243 | * | |
2244 | * Return code | |
2245 | * 0 - Successfully issued farpr command | |
2246 | * 1 - Failed to issue farpr command | |
2247 | **/ | |
dea3101e | 2248 | static int |
2e0fef85 | 2249 | lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) |
dea3101e | 2250 | { |
2e0fef85 | 2251 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
2252 | IOCB_t *icmd; |
2253 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
2254 | struct lpfc_sli *psli; |
2255 | FARP *fp; | |
2256 | uint8_t *pcmd; | |
2257 | uint32_t *lp; | |
2258 | uint16_t cmdsize; | |
2259 | struct lpfc_nodelist *ondlp; | |
2260 | struct lpfc_nodelist *ndlp; | |
2261 | ||
2262 | psli = &phba->sli; | |
92d7f7b0 | 2263 | cmdsize = (sizeof(uint32_t) + sizeof(FARP)); |
dea3101e | 2264 | |
e47c9093 JS |
2265 | ndlp = lpfc_findnode_did(vport, nportid); |
2266 | if (!ndlp) { | |
2267 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
2268 | if (!ndlp) | |
2269 | return 1; | |
2270 | lpfc_nlp_init(vport, ndlp, nportid); | |
2271 | lpfc_enqueue_node(vport, ndlp); | |
2272 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { | |
2273 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
2274 | if (!ndlp) | |
2275 | return 1; | |
2276 | } | |
2e0fef85 JS |
2277 | |
2278 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, | |
2279 | ndlp->nlp_DID, ELS_CMD_RNID); | |
488d1469 | 2280 | if (!elsiocb) { |
fa4066b6 JS |
2281 | /* This will trigger the release of the node just |
2282 | * allocated | |
2283 | */ | |
329f9bc7 | 2284 | lpfc_nlp_put(ndlp); |
c9f8735b | 2285 | return 1; |
dea3101e JB |
2286 | } |
2287 | ||
2288 | icmd = &elsiocb->iocb; | |
2289 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
2290 | ||
2291 | *((uint32_t *) (pcmd)) = ELS_CMD_FARPR; | |
92d7f7b0 | 2292 | pcmd += sizeof(uint32_t); |
dea3101e JB |
2293 | |
2294 | /* Fill in FARPR payload */ | |
2295 | fp = (FARP *) (pcmd); | |
92d7f7b0 | 2296 | memset(fp, 0, sizeof(FARP)); |
dea3101e JB |
2297 | lp = (uint32_t *) pcmd; |
2298 | *lp++ = be32_to_cpu(nportid); | |
2e0fef85 | 2299 | *lp++ = be32_to_cpu(vport->fc_myDID); |
dea3101e JB |
2300 | fp->Rflags = 0; |
2301 | fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE); | |
2302 | ||
92d7f7b0 JS |
2303 | memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name)); |
2304 | memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 2305 | ondlp = lpfc_findnode_did(vport, nportid); |
e47c9093 | 2306 | if (ondlp && NLP_CHK_NODE_ACT(ondlp)) { |
dea3101e | 2307 | memcpy(&fp->OportName, &ondlp->nlp_portname, |
92d7f7b0 | 2308 | sizeof(struct lpfc_name)); |
dea3101e | 2309 | memcpy(&fp->OnodeName, &ondlp->nlp_nodename, |
92d7f7b0 | 2310 | sizeof(struct lpfc_name)); |
dea3101e JB |
2311 | } |
2312 | ||
858c9f6c JS |
2313 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2314 | "Issue FARPR: did:x%x", | |
2315 | ndlp->nlp_DID, 0, 0); | |
2316 | ||
dea3101e JB |
2317 | phba->fc_stat.elsXmitFARPR++; |
2318 | elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; | |
3772a991 JS |
2319 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
2320 | IOCB_ERROR) { | |
fa4066b6 JS |
2321 | /* The additional lpfc_nlp_put will cause the following |
2322 | * lpfc_els_free_iocb routine to trigger the release of | |
2323 | * the node. | |
2324 | */ | |
329f9bc7 | 2325 | lpfc_nlp_put(ndlp); |
dea3101e | 2326 | lpfc_els_free_iocb(phba, elsiocb); |
c9f8735b | 2327 | return 1; |
dea3101e | 2328 | } |
fa4066b6 JS |
2329 | /* This will cause the callback-function lpfc_cmpl_els_cmd to |
2330 | * trigger the release of the node. | |
2331 | */ | |
329f9bc7 | 2332 | lpfc_nlp_put(ndlp); |
c9f8735b | 2333 | return 0; |
dea3101e JB |
2334 | } |
2335 | ||
e59058c4 | 2336 | /** |
3621a710 | 2337 | * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry |
e59058c4 JS |
2338 | * @vport: pointer to a host virtual N_Port data structure. |
2339 | * @nlp: pointer to a node-list data structure. | |
2340 | * | |
2341 | * This routine cancels the timer with a delayed IOCB-command retry for | |
2342 | * a @vport's @ndlp. It stops the timer for the delayed function retrial and | |
2343 | * removes the ELS retry event if it presents. In addition, if the | |
2344 | * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB | |
2345 | * commands are sent for the @vport's nodes that require issuing discovery | |
2346 | * ADISC. | |
2347 | **/ | |
fdcebe28 | 2348 | void |
2e0fef85 | 2349 | lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) |
fdcebe28 | 2350 | { |
2e0fef85 | 2351 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
e47c9093 | 2352 | struct lpfc_work_evt *evtp; |
2e0fef85 | 2353 | |
0d2b6b83 JS |
2354 | if (!(nlp->nlp_flag & NLP_DELAY_TMO)) |
2355 | return; | |
2e0fef85 | 2356 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2357 | nlp->nlp_flag &= ~NLP_DELAY_TMO; |
2e0fef85 | 2358 | spin_unlock_irq(shost->host_lock); |
fdcebe28 JS |
2359 | del_timer_sync(&nlp->nlp_delayfunc); |
2360 | nlp->nlp_last_elscmd = 0; | |
e47c9093 | 2361 | if (!list_empty(&nlp->els_retry_evt.evt_listp)) { |
fdcebe28 | 2362 | list_del_init(&nlp->els_retry_evt.evt_listp); |
e47c9093 JS |
2363 | /* Decrement nlp reference count held for the delayed retry */ |
2364 | evtp = &nlp->els_retry_evt; | |
2365 | lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1); | |
2366 | } | |
fdcebe28 | 2367 | if (nlp->nlp_flag & NLP_NPR_2B_DISC) { |
2e0fef85 | 2368 | spin_lock_irq(shost->host_lock); |
fdcebe28 | 2369 | nlp->nlp_flag &= ~NLP_NPR_2B_DISC; |
2e0fef85 JS |
2370 | spin_unlock_irq(shost->host_lock); |
2371 | if (vport->num_disc_nodes) { | |
0d2b6b83 JS |
2372 | if (vport->port_state < LPFC_VPORT_READY) { |
2373 | /* Check if there are more ADISCs to be sent */ | |
2374 | lpfc_more_adisc(vport); | |
0d2b6b83 JS |
2375 | } else { |
2376 | /* Check if there are more PLOGIs to be sent */ | |
2377 | lpfc_more_plogi(vport); | |
90160e01 JS |
2378 | if (vport->num_disc_nodes == 0) { |
2379 | spin_lock_irq(shost->host_lock); | |
2380 | vport->fc_flag &= ~FC_NDISC_ACTIVE; | |
2381 | spin_unlock_irq(shost->host_lock); | |
2382 | lpfc_can_disctmo(vport); | |
2383 | lpfc_end_rscn(vport); | |
2384 | } | |
fdcebe28 JS |
2385 | } |
2386 | } | |
2387 | } | |
2388 | return; | |
2389 | } | |
2390 | ||
e59058c4 | 2391 | /** |
3621a710 | 2392 | * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer |
e59058c4 JS |
2393 | * @ptr: holder for the pointer to the timer function associated data (ndlp). |
2394 | * | |
2395 | * This routine is invoked by the ndlp delayed-function timer to check | |
2396 | * whether there is any pending ELS retry event(s) with the node. If not, it | |
2397 | * simply returns. Otherwise, if there is at least one ELS delayed event, it | |
2398 | * adds the delayed events to the HBA work list and invokes the | |
2399 | * lpfc_worker_wake_up() routine to wake up worker thread to process the | |
2400 | * event. Note that lpfc_nlp_get() is called before posting the event to | |
2401 | * the work list to hold reference count of ndlp so that it guarantees the | |
2402 | * reference to ndlp will still be available when the worker thread gets | |
2403 | * to the event associated with the ndlp. | |
2404 | **/ | |
dea3101e JB |
2405 | void |
2406 | lpfc_els_retry_delay(unsigned long ptr) | |
2407 | { | |
2e0fef85 JS |
2408 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr; |
2409 | struct lpfc_vport *vport = ndlp->vport; | |
2e0fef85 | 2410 | struct lpfc_hba *phba = vport->phba; |
92d7f7b0 | 2411 | unsigned long flags; |
2e0fef85 | 2412 | struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; |
dea3101e | 2413 | |
92d7f7b0 | 2414 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 2415 | if (!list_empty(&evtp->evt_listp)) { |
92d7f7b0 | 2416 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2417 | return; |
2418 | } | |
2419 | ||
fa4066b6 JS |
2420 | /* We need to hold the node by incrementing the reference |
2421 | * count until the queued work is done | |
2422 | */ | |
2423 | evtp->evt_arg1 = lpfc_nlp_get(ndlp); | |
5e9d9b82 JS |
2424 | if (evtp->evt_arg1) { |
2425 | evtp->evt = LPFC_EVT_ELS_RETRY; | |
2426 | list_add_tail(&evtp->evt_listp, &phba->work_list); | |
92d7f7b0 | 2427 | lpfc_worker_wake_up(phba); |
5e9d9b82 | 2428 | } |
92d7f7b0 | 2429 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e JB |
2430 | return; |
2431 | } | |
2432 | ||
e59058c4 | 2433 | /** |
3621a710 | 2434 | * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function |
e59058c4 JS |
2435 | * @ndlp: pointer to a node-list data structure. |
2436 | * | |
2437 | * This routine is the worker-thread handler for processing the @ndlp delayed | |
2438 | * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves | |
2439 | * the last ELS command from the associated ndlp and invokes the proper ELS | |
2440 | * function according to the delayed ELS command to retry the command. | |
2441 | **/ | |
dea3101e JB |
2442 | void |
2443 | lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) | |
2444 | { | |
2e0fef85 JS |
2445 | struct lpfc_vport *vport = ndlp->vport; |
2446 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2447 | uint32_t cmd, did, retry; | |
dea3101e | 2448 | |
2e0fef85 | 2449 | spin_lock_irq(shost->host_lock); |
5024ab17 JW |
2450 | did = ndlp->nlp_DID; |
2451 | cmd = ndlp->nlp_last_elscmd; | |
2452 | ndlp->nlp_last_elscmd = 0; | |
dea3101e JB |
2453 | |
2454 | if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) { | |
2e0fef85 | 2455 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
2456 | return; |
2457 | } | |
2458 | ||
2459 | ndlp->nlp_flag &= ~NLP_DELAY_TMO; | |
2e0fef85 | 2460 | spin_unlock_irq(shost->host_lock); |
1a169689 JS |
2461 | /* |
2462 | * If a discovery event readded nlp_delayfunc after timer | |
2463 | * firing and before processing the timer, cancel the | |
2464 | * nlp_delayfunc. | |
2465 | */ | |
2466 | del_timer_sync(&ndlp->nlp_delayfunc); | |
dea3101e | 2467 | retry = ndlp->nlp_retry; |
4d9ab994 | 2468 | ndlp->nlp_retry = 0; |
dea3101e JB |
2469 | |
2470 | switch (cmd) { | |
2471 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2472 | lpfc_issue_els_flogi(vport, ndlp, retry); |
dea3101e JB |
2473 | break; |
2474 | case ELS_CMD_PLOGI: | |
2e0fef85 | 2475 | if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) { |
5024ab17 | 2476 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2477 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
6ad42535 | 2478 | } |
dea3101e JB |
2479 | break; |
2480 | case ELS_CMD_ADISC: | |
2e0fef85 | 2481 | if (!lpfc_issue_els_adisc(vport, ndlp, retry)) { |
5024ab17 | 2482 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2483 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
6ad42535 | 2484 | } |
dea3101e JB |
2485 | break; |
2486 | case ELS_CMD_PRLI: | |
2e0fef85 | 2487 | if (!lpfc_issue_els_prli(vport, ndlp, retry)) { |
5024ab17 | 2488 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2489 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
6ad42535 | 2490 | } |
dea3101e JB |
2491 | break; |
2492 | case ELS_CMD_LOGO: | |
2e0fef85 | 2493 | if (!lpfc_issue_els_logo(vport, ndlp, retry)) { |
5024ab17 | 2494 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2495 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
6ad42535 | 2496 | } |
dea3101e | 2497 | break; |
92d7f7b0 JS |
2498 | case ELS_CMD_FDISC: |
2499 | lpfc_issue_els_fdisc(vport, ndlp, retry); | |
2500 | break; | |
dea3101e JB |
2501 | } |
2502 | return; | |
2503 | } | |
2504 | ||
e59058c4 | 2505 | /** |
3621a710 | 2506 | * lpfc_els_retry - Make retry decision on an els command iocb |
e59058c4 JS |
2507 | * @phba: pointer to lpfc hba data structure. |
2508 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2509 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2510 | * | |
2511 | * This routine makes a retry decision on an ELS command IOCB, which has | |
2512 | * failed. The following ELS IOCBs use this function for retrying the command | |
2513 | * when previously issued command responsed with error status: FLOGI, PLOGI, | |
2514 | * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the | |
2515 | * returned error status, it makes the decision whether a retry shall be | |
2516 | * issued for the command, and whether a retry shall be made immediately or | |
2517 | * delayed. In the former case, the corresponding ELS command issuing-function | |
2518 | * is called to retry the command. In the later case, the ELS command shall | |
2519 | * be posted to the ndlp delayed event and delayed function timer set to the | |
2520 | * ndlp for the delayed command issusing. | |
2521 | * | |
2522 | * Return code | |
2523 | * 0 - No retry of els command is made | |
2524 | * 1 - Immediate or delayed retry of els command is made | |
2525 | **/ | |
dea3101e | 2526 | static int |
2e0fef85 JS |
2527 | lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
2528 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 2529 | { |
2e0fef85 JS |
2530 | struct lpfc_vport *vport = cmdiocb->vport; |
2531 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
2532 | IOCB_t *irsp = &rspiocb->iocb; | |
2533 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
2534 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
dea3101e JB |
2535 | uint32_t *elscmd; |
2536 | struct ls_rjt stat; | |
2e0fef85 | 2537 | int retry = 0, maxretry = lpfc_max_els_tries, delay = 0; |
98c9ea5c | 2538 | int logerr = 0; |
2e0fef85 | 2539 | uint32_t cmd = 0; |
488d1469 | 2540 | uint32_t did; |
dea3101e | 2541 | |
488d1469 | 2542 | |
dea3101e JB |
2543 | /* Note: context2 may be 0 for internal driver abort |
2544 | * of delays ELS command. | |
2545 | */ | |
2546 | ||
2547 | if (pcmd && pcmd->virt) { | |
2548 | elscmd = (uint32_t *) (pcmd->virt); | |
2549 | cmd = *elscmd++; | |
2550 | } | |
2551 | ||
e47c9093 | 2552 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
488d1469 JS |
2553 | did = ndlp->nlp_DID; |
2554 | else { | |
2555 | /* We should only hit this case for retrying PLOGI */ | |
2556 | did = irsp->un.elsreq64.remoteID; | |
2e0fef85 | 2557 | ndlp = lpfc_findnode_did(vport, did); |
e47c9093 JS |
2558 | if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp)) |
2559 | && (cmd != ELS_CMD_PLOGI)) | |
488d1469 JS |
2560 | return 1; |
2561 | } | |
2562 | ||
858c9f6c JS |
2563 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
2564 | "Retry ELS: wd7:x%x wd4:x%x did:x%x", | |
2565 | *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID); | |
2566 | ||
dea3101e JB |
2567 | switch (irsp->ulpStatus) { |
2568 | case IOSTAT_FCP_RSP_ERROR: | |
2569 | case IOSTAT_REMOTE_STOP: | |
2570 | break; | |
2571 | ||
2572 | case IOSTAT_LOCAL_REJECT: | |
2573 | switch ((irsp->un.ulpWord[4] & 0xff)) { | |
2574 | case IOERR_LOOP_OPEN_FAILURE: | |
eaf15d5b JS |
2575 | if (cmd == ELS_CMD_FLOGI) { |
2576 | if (PCI_DEVICE_ID_HORNET == | |
2577 | phba->pcidev->device) { | |
2578 | phba->fc_topology = TOPOLOGY_LOOP; | |
2579 | phba->pport->fc_myDID = 0; | |
2580 | phba->alpa_map[0] = 0; | |
2581 | phba->alpa_map[1] = 0; | |
2582 | } | |
2583 | } | |
2e0fef85 | 2584 | if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) |
92d7f7b0 | 2585 | delay = 1000; |
dea3101e JB |
2586 | retry = 1; |
2587 | break; | |
2588 | ||
92d7f7b0 | 2589 | case IOERR_ILLEGAL_COMMAND: |
7f5f3d0d JS |
2590 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2591 | "0124 Retry illegal cmd x%x " | |
2592 | "retry:x%x delay:x%x\n", | |
2593 | cmd, cmdiocb->retry, delay); | |
2594 | retry = 1; | |
2595 | /* All command's retry policy */ | |
2596 | maxretry = 8; | |
2597 | if (cmdiocb->retry > 2) | |
2598 | delay = 1000; | |
92d7f7b0 JS |
2599 | break; |
2600 | ||
dea3101e | 2601 | case IOERR_NO_RESOURCES: |
98c9ea5c | 2602 | logerr = 1; /* HBA out of resources */ |
858c9f6c JS |
2603 | retry = 1; |
2604 | if (cmdiocb->retry > 100) | |
2605 | delay = 100; | |
2606 | maxretry = 250; | |
2607 | break; | |
2608 | ||
2609 | case IOERR_ILLEGAL_FRAME: | |
92d7f7b0 | 2610 | delay = 100; |
dea3101e JB |
2611 | retry = 1; |
2612 | break; | |
2613 | ||
858c9f6c | 2614 | case IOERR_SEQUENCE_TIMEOUT: |
dea3101e JB |
2615 | case IOERR_INVALID_RPI: |
2616 | retry = 1; | |
2617 | break; | |
2618 | } | |
2619 | break; | |
2620 | ||
2621 | case IOSTAT_NPORT_RJT: | |
2622 | case IOSTAT_FABRIC_RJT: | |
2623 | if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
2624 | retry = 1; | |
2625 | break; | |
2626 | } | |
2627 | break; | |
2628 | ||
2629 | case IOSTAT_NPORT_BSY: | |
2630 | case IOSTAT_FABRIC_BSY: | |
98c9ea5c | 2631 | logerr = 1; /* Fabric / Remote NPort out of resources */ |
dea3101e JB |
2632 | retry = 1; |
2633 | break; | |
2634 | ||
2635 | case IOSTAT_LS_RJT: | |
2636 | stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]); | |
2637 | /* Added for Vendor specifc support | |
2638 | * Just keep retrying for these Rsn / Exp codes | |
2639 | */ | |
2640 | switch (stat.un.b.lsRjtRsnCode) { | |
2641 | case LSRJT_UNABLE_TPC: | |
2642 | if (stat.un.b.lsRjtRsnCodeExp == | |
2643 | LSEXP_CMD_IN_PROGRESS) { | |
2644 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2645 | delay = 1000; |
dea3101e JB |
2646 | maxretry = 48; |
2647 | } | |
2648 | retry = 1; | |
2649 | break; | |
2650 | } | |
2651 | if (cmd == ELS_CMD_PLOGI) { | |
92d7f7b0 | 2652 | delay = 1000; |
dea3101e JB |
2653 | maxretry = lpfc_max_els_tries + 1; |
2654 | retry = 1; | |
2655 | break; | |
2656 | } | |
92d7f7b0 JS |
2657 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
2658 | (cmd == ELS_CMD_FDISC) && | |
2659 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){ | |
e8b62011 JS |
2660 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
2661 | "0125 FDISC Failed (x%x). " | |
2662 | "Fabric out of resources\n", | |
2663 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2664 | lpfc_vport_set_state(vport, |
2665 | FC_VPORT_NO_FABRIC_RSCS); | |
2666 | } | |
dea3101e JB |
2667 | break; |
2668 | ||
2669 | case LSRJT_LOGICAL_BSY: | |
858c9f6c JS |
2670 | if ((cmd == ELS_CMD_PLOGI) || |
2671 | (cmd == ELS_CMD_PRLI)) { | |
92d7f7b0 | 2672 | delay = 1000; |
dea3101e | 2673 | maxretry = 48; |
92d7f7b0 | 2674 | } else if (cmd == ELS_CMD_FDISC) { |
51ef4c26 JS |
2675 | /* FDISC retry policy */ |
2676 | maxretry = 48; | |
2677 | if (cmdiocb->retry >= 32) | |
2678 | delay = 1000; | |
dea3101e JB |
2679 | } |
2680 | retry = 1; | |
2681 | break; | |
92d7f7b0 JS |
2682 | |
2683 | case LSRJT_LOGICAL_ERR: | |
7f5f3d0d JS |
2684 | /* There are some cases where switches return this |
2685 | * error when they are not ready and should be returning | |
2686 | * Logical Busy. We should delay every time. | |
2687 | */ | |
2688 | if (cmd == ELS_CMD_FDISC && | |
2689 | stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) { | |
2690 | maxretry = 3; | |
2691 | delay = 1000; | |
2692 | retry = 1; | |
2693 | break; | |
2694 | } | |
92d7f7b0 JS |
2695 | case LSRJT_PROTOCOL_ERR: |
2696 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
2697 | (cmd == ELS_CMD_FDISC) && | |
2698 | ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) || | |
2699 | (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) | |
2700 | ) { | |
e8b62011 | 2701 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 2702 | "0122 FDISC Failed (x%x). " |
e8b62011 JS |
2703 | "Fabric Detected Bad WWN\n", |
2704 | stat.un.lsRjtError); | |
92d7f7b0 JS |
2705 | lpfc_vport_set_state(vport, |
2706 | FC_VPORT_FABRIC_REJ_WWN); | |
2707 | } | |
2708 | break; | |
dea3101e JB |
2709 | } |
2710 | break; | |
2711 | ||
2712 | case IOSTAT_INTERMED_RSP: | |
2713 | case IOSTAT_BA_RJT: | |
2714 | break; | |
2715 | ||
2716 | default: | |
2717 | break; | |
2718 | } | |
2719 | ||
488d1469 | 2720 | if (did == FDMI_DID) |
dea3101e | 2721 | retry = 1; |
dea3101e | 2722 | |
98c9ea5c | 2723 | if ((cmd == ELS_CMD_FLOGI) && |
1b32f6aa JS |
2724 | (phba->fc_topology != TOPOLOGY_LOOP) && |
2725 | !lpfc_error_lost_link(irsp)) { | |
98c9ea5c JS |
2726 | /* FLOGI retry policy */ |
2727 | retry = 1; | |
6669f9bb JS |
2728 | /* retry forever */ |
2729 | maxretry = 0; | |
2730 | if (cmdiocb->retry >= 100) | |
2731 | delay = 5000; | |
2732 | else if (cmdiocb->retry >= 32) | |
98c9ea5c JS |
2733 | delay = 1000; |
2734 | } | |
2735 | ||
6669f9bb JS |
2736 | cmdiocb->retry++; |
2737 | if (maxretry && (cmdiocb->retry >= maxretry)) { | |
dea3101e JB |
2738 | phba->fc_stat.elsRetryExceeded++; |
2739 | retry = 0; | |
2740 | } | |
2741 | ||
ed957684 JS |
2742 | if ((vport->load_flag & FC_UNLOADING) != 0) |
2743 | retry = 0; | |
2744 | ||
dea3101e JB |
2745 | if (retry) { |
2746 | ||
2747 | /* Retry ELS command <elsCmd> to remote NPORT <did> */ | |
e8b62011 JS |
2748 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
2749 | "0107 Retry ELS command x%x to remote " | |
2750 | "NPORT x%x Data: x%x x%x\n", | |
2751 | cmd, did, cmdiocb->retry, delay); | |
dea3101e | 2752 | |
858c9f6c JS |
2753 | if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) && |
2754 | ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) || | |
2755 | ((irsp->un.ulpWord[4] & 0xff) != IOERR_NO_RESOURCES))) { | |
2756 | /* Don't reset timer for no resources */ | |
2757 | ||
dea3101e | 2758 | /* If discovery / RSCN timer is running, reset it */ |
2e0fef85 | 2759 | if (timer_pending(&vport->fc_disctmo) || |
92d7f7b0 | 2760 | (vport->fc_flag & FC_RSCN_MODE)) |
2e0fef85 | 2761 | lpfc_set_disctmo(vport); |
dea3101e JB |
2762 | } |
2763 | ||
2764 | phba->fc_stat.elsXmitRetry++; | |
58da1ffb | 2765 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) { |
dea3101e JB |
2766 | phba->fc_stat.elsDelayRetry++; |
2767 | ndlp->nlp_retry = cmdiocb->retry; | |
2768 | ||
92d7f7b0 JS |
2769 | /* delay is specified in milliseconds */ |
2770 | mod_timer(&ndlp->nlp_delayfunc, | |
2771 | jiffies + msecs_to_jiffies(delay)); | |
2e0fef85 | 2772 | spin_lock_irq(shost->host_lock); |
dea3101e | 2773 | ndlp->nlp_flag |= NLP_DELAY_TMO; |
2e0fef85 | 2774 | spin_unlock_irq(shost->host_lock); |
dea3101e | 2775 | |
5024ab17 | 2776 | ndlp->nlp_prev_state = ndlp->nlp_state; |
858c9f6c JS |
2777 | if (cmd == ELS_CMD_PRLI) |
2778 | lpfc_nlp_set_state(vport, ndlp, | |
2779 | NLP_STE_REG_LOGIN_ISSUE); | |
2780 | else | |
2781 | lpfc_nlp_set_state(vport, ndlp, | |
2782 | NLP_STE_NPR_NODE); | |
dea3101e JB |
2783 | ndlp->nlp_last_elscmd = cmd; |
2784 | ||
c9f8735b | 2785 | return 1; |
dea3101e JB |
2786 | } |
2787 | switch (cmd) { | |
2788 | case ELS_CMD_FLOGI: | |
2e0fef85 | 2789 | lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry); |
c9f8735b | 2790 | return 1; |
92d7f7b0 JS |
2791 | case ELS_CMD_FDISC: |
2792 | lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry); | |
2793 | return 1; | |
dea3101e | 2794 | case ELS_CMD_PLOGI: |
58da1ffb | 2795 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
488d1469 | 2796 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 2797 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 2798 | NLP_STE_PLOGI_ISSUE); |
488d1469 | 2799 | } |
2e0fef85 | 2800 | lpfc_issue_els_plogi(vport, did, cmdiocb->retry); |
c9f8735b | 2801 | return 1; |
dea3101e | 2802 | case ELS_CMD_ADISC: |
5024ab17 | 2803 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2804 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
2805 | lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2806 | return 1; |
dea3101e | 2807 | case ELS_CMD_PRLI: |
5024ab17 | 2808 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2809 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); |
2810 | lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2811 | return 1; |
dea3101e | 2812 | case ELS_CMD_LOGO: |
5024ab17 | 2813 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
2814 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
2815 | lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry); | |
c9f8735b | 2816 | return 1; |
dea3101e JB |
2817 | } |
2818 | } | |
dea3101e | 2819 | /* No retry ELS command <elsCmd> to remote NPORT <did> */ |
98c9ea5c JS |
2820 | if (logerr) { |
2821 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
2822 | "0137 No retry ELS command x%x to remote " | |
2823 | "NPORT x%x: Out of Resources: Error:x%x/%x\n", | |
2824 | cmd, did, irsp->ulpStatus, | |
2825 | irsp->un.ulpWord[4]); | |
2826 | } | |
2827 | else { | |
2828 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, | |
a58cbd52 JS |
2829 | "0108 No retry ELS command x%x to remote " |
2830 | "NPORT x%x Retried:%d Error:x%x/%x\n", | |
2831 | cmd, did, cmdiocb->retry, irsp->ulpStatus, | |
2832 | irsp->un.ulpWord[4]); | |
98c9ea5c | 2833 | } |
c9f8735b | 2834 | return 0; |
dea3101e JB |
2835 | } |
2836 | ||
e59058c4 | 2837 | /** |
3621a710 | 2838 | * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb |
e59058c4 JS |
2839 | * @phba: pointer to lpfc hba data structure. |
2840 | * @buf_ptr1: pointer to the lpfc DMA buffer data structure. | |
2841 | * | |
2842 | * This routine releases the lpfc DMA (Direct Memory Access) buffer(s) | |
2843 | * associated with a command IOCB back to the lpfc DMA buffer pool. It first | |
2844 | * checks to see whether there is a lpfc DMA buffer associated with the | |
2845 | * response of the command IOCB. If so, it will be released before releasing | |
2846 | * the lpfc DMA buffer associated with the IOCB itself. | |
2847 | * | |
2848 | * Return code | |
2849 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2850 | **/ | |
09372820 | 2851 | static int |
87af33fe JS |
2852 | lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) |
2853 | { | |
2854 | struct lpfc_dmabuf *buf_ptr; | |
2855 | ||
e59058c4 | 2856 | /* Free the response before processing the command. */ |
87af33fe JS |
2857 | if (!list_empty(&buf_ptr1->list)) { |
2858 | list_remove_head(&buf_ptr1->list, buf_ptr, | |
2859 | struct lpfc_dmabuf, | |
2860 | list); | |
2861 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2862 | kfree(buf_ptr); | |
2863 | } | |
2864 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); | |
2865 | kfree(buf_ptr1); | |
2866 | return 0; | |
2867 | } | |
2868 | ||
e59058c4 | 2869 | /** |
3621a710 | 2870 | * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl |
e59058c4 JS |
2871 | * @phba: pointer to lpfc hba data structure. |
2872 | * @buf_ptr: pointer to the lpfc dma buffer data structure. | |
2873 | * | |
2874 | * This routine releases the lpfc Direct Memory Access (DMA) buffer | |
2875 | * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer | |
2876 | * pool. | |
2877 | * | |
2878 | * Return code | |
2879 | * 0 - Successfully released lpfc DMA buffer (currently, always return 0) | |
2880 | **/ | |
09372820 | 2881 | static int |
87af33fe JS |
2882 | lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) |
2883 | { | |
2884 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
2885 | kfree(buf_ptr); | |
2886 | return 0; | |
2887 | } | |
2888 | ||
e59058c4 | 2889 | /** |
3621a710 | 2890 | * lpfc_els_free_iocb - Free a command iocb and its associated resources |
e59058c4 JS |
2891 | * @phba: pointer to lpfc hba data structure. |
2892 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
2893 | * | |
2894 | * This routine frees a command IOCB and its associated resources. The | |
2895 | * command IOCB data structure contains the reference to various associated | |
2896 | * resources, these fields must be set to NULL if the associated reference | |
2897 | * not present: | |
2898 | * context1 - reference to ndlp | |
2899 | * context2 - reference to cmd | |
2900 | * context2->next - reference to rsp | |
2901 | * context3 - reference to bpl | |
2902 | * | |
2903 | * It first properly decrements the reference count held on ndlp for the | |
2904 | * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not | |
2905 | * set, it invokes the lpfc_els_free_data() routine to release the Direct | |
2906 | * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it | |
2907 | * adds the DMA buffer the @phba data structure for the delayed release. | |
2908 | * If reference to the Buffer Pointer List (BPL) is present, the | |
2909 | * lpfc_els_free_bpl() routine is invoked to release the DMA memory | |
2910 | * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is | |
2911 | * invoked to release the IOCB data structure back to @phba IOCBQ list. | |
2912 | * | |
2913 | * Return code | |
2914 | * 0 - Success (currently, always return 0) | |
2915 | **/ | |
dea3101e | 2916 | int |
329f9bc7 | 2917 | lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) |
dea3101e JB |
2918 | { |
2919 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; | |
a8adb832 JS |
2920 | struct lpfc_nodelist *ndlp; |
2921 | ||
2922 | ndlp = (struct lpfc_nodelist *)elsiocb->context1; | |
2923 | if (ndlp) { | |
2924 | if (ndlp->nlp_flag & NLP_DEFER_RM) { | |
2925 | lpfc_nlp_put(ndlp); | |
dea3101e | 2926 | |
a8adb832 JS |
2927 | /* If the ndlp is not being used by another discovery |
2928 | * thread, free it. | |
2929 | */ | |
2930 | if (!lpfc_nlp_not_used(ndlp)) { | |
2931 | /* If ndlp is being used by another discovery | |
2932 | * thread, just clear NLP_DEFER_RM | |
2933 | */ | |
2934 | ndlp->nlp_flag &= ~NLP_DEFER_RM; | |
2935 | } | |
2936 | } | |
2937 | else | |
2938 | lpfc_nlp_put(ndlp); | |
329f9bc7 JS |
2939 | elsiocb->context1 = NULL; |
2940 | } | |
dea3101e JB |
2941 | /* context2 = cmd, context2->next = rsp, context3 = bpl */ |
2942 | if (elsiocb->context2) { | |
0ff10d46 JS |
2943 | if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) { |
2944 | /* Firmware could still be in progress of DMAing | |
2945 | * payload, so don't free data buffer till after | |
2946 | * a hbeat. | |
2947 | */ | |
2948 | elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE; | |
2949 | buf_ptr = elsiocb->context2; | |
2950 | elsiocb->context2 = NULL; | |
2951 | if (buf_ptr) { | |
2952 | buf_ptr1 = NULL; | |
2953 | spin_lock_irq(&phba->hbalock); | |
2954 | if (!list_empty(&buf_ptr->list)) { | |
2955 | list_remove_head(&buf_ptr->list, | |
2956 | buf_ptr1, struct lpfc_dmabuf, | |
2957 | list); | |
2958 | INIT_LIST_HEAD(&buf_ptr1->list); | |
2959 | list_add_tail(&buf_ptr1->list, | |
2960 | &phba->elsbuf); | |
2961 | phba->elsbuf_cnt++; | |
2962 | } | |
2963 | INIT_LIST_HEAD(&buf_ptr->list); | |
2964 | list_add_tail(&buf_ptr->list, &phba->elsbuf); | |
2965 | phba->elsbuf_cnt++; | |
2966 | spin_unlock_irq(&phba->hbalock); | |
2967 | } | |
2968 | } else { | |
2969 | buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2; | |
2970 | lpfc_els_free_data(phba, buf_ptr1); | |
2971 | } | |
dea3101e JB |
2972 | } |
2973 | ||
2974 | if (elsiocb->context3) { | |
2975 | buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3; | |
87af33fe | 2976 | lpfc_els_free_bpl(phba, buf_ptr); |
dea3101e | 2977 | } |
604a3e30 | 2978 | lpfc_sli_release_iocbq(phba, elsiocb); |
dea3101e JB |
2979 | return 0; |
2980 | } | |
2981 | ||
e59058c4 | 2982 | /** |
3621a710 | 2983 | * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response |
e59058c4 JS |
2984 | * @phba: pointer to lpfc hba data structure. |
2985 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
2986 | * @rspiocb: pointer to lpfc response iocb data structure. | |
2987 | * | |
2988 | * This routine is the completion callback function to the Logout (LOGO) | |
2989 | * Accept (ACC) Response ELS command. This routine is invoked to indicate | |
2990 | * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to | |
2991 | * release the ndlp if it has the last reference remaining (reference count | |
2992 | * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1 | |
2993 | * field to NULL to inform the following lpfc_els_free_iocb() routine no | |
2994 | * ndlp reference count needs to be decremented. Otherwise, the ndlp | |
2995 | * reference use-count shall be decremented by the lpfc_els_free_iocb() | |
2996 | * routine. Finally, the lpfc_els_free_iocb() is invoked to release the | |
2997 | * IOCB data structure. | |
2998 | **/ | |
dea3101e | 2999 | static void |
2e0fef85 JS |
3000 | lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
3001 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 3002 | { |
2e0fef85 JS |
3003 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3004 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c JS |
3005 | IOCB_t *irsp; |
3006 | ||
3007 | irsp = &rspiocb->iocb; | |
3008 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3009 | "ACC LOGO cmpl: status:x%x/x%x did:x%x", | |
3010 | irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID); | |
dea3101e | 3011 | /* ACC to LOGO completes to NPort <nlp_DID> */ |
e8b62011 JS |
3012 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3013 | "0109 ACC to LOGO completes to NPort x%x " | |
3014 | "Data: x%x x%x x%x\n", | |
3015 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3016 | ndlp->nlp_rpi); | |
87af33fe JS |
3017 | |
3018 | if (ndlp->nlp_state == NLP_STE_NPR_NODE) { | |
3019 | /* NPort Recovery mode or node is just allocated */ | |
3020 | if (!lpfc_nlp_not_used(ndlp)) { | |
3021 | /* If the ndlp is being used by another discovery | |
3022 | * thread, just unregister the RPI. | |
3023 | */ | |
3024 | lpfc_unreg_rpi(vport, ndlp); | |
fa4066b6 JS |
3025 | } else { |
3026 | /* Indicate the node has already released, should | |
3027 | * not reference to it from within lpfc_els_free_iocb. | |
3028 | */ | |
3029 | cmdiocb->context1 = NULL; | |
87af33fe | 3030 | } |
dea3101e JB |
3031 | } |
3032 | lpfc_els_free_iocb(phba, cmdiocb); | |
3033 | return; | |
3034 | } | |
3035 | ||
e59058c4 | 3036 | /** |
3621a710 | 3037 | * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd |
e59058c4 JS |
3038 | * @phba: pointer to lpfc hba data structure. |
3039 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
3040 | * | |
3041 | * This routine is the completion callback function for unregister default | |
3042 | * RPI (Remote Port Index) mailbox command to the @phba. It simply releases | |
3043 | * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and | |
3044 | * decrements the ndlp reference count held for this completion callback | |
3045 | * function. After that, it invokes the lpfc_nlp_not_used() to check | |
3046 | * whether there is only one reference left on the ndlp. If so, it will | |
3047 | * perform one more decrement and trigger the release of the ndlp. | |
3048 | **/ | |
858c9f6c JS |
3049 | void |
3050 | lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
3051 | { | |
3052 | struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1); | |
3053 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
3054 | ||
6fb120a7 JS |
3055 | /* |
3056 | * This routine is used to register and unregister in previous SLI | |
3057 | * modes. | |
3058 | */ | |
3059 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && | |
3060 | (phba->sli_rev == LPFC_SLI_REV4)) | |
3061 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
3062 | ||
858c9f6c JS |
3063 | pmb->context1 = NULL; |
3064 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3065 | kfree(mp); | |
3066 | mempool_free(pmb, phba->mbox_mem_pool); | |
58da1ffb | 3067 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
a8adb832 | 3068 | lpfc_nlp_put(ndlp); |
a8adb832 JS |
3069 | /* This is the end of the default RPI cleanup logic for this |
3070 | * ndlp. If no other discovery threads are using this ndlp. | |
3071 | * we should free all resources associated with it. | |
3072 | */ | |
3073 | lpfc_nlp_not_used(ndlp); | |
3074 | } | |
3772a991 | 3075 | |
858c9f6c JS |
3076 | return; |
3077 | } | |
3078 | ||
e59058c4 | 3079 | /** |
3621a710 | 3080 | * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd |
e59058c4 JS |
3081 | * @phba: pointer to lpfc hba data structure. |
3082 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
3083 | * @rspiocb: pointer to lpfc response iocb data structure. | |
3084 | * | |
3085 | * This routine is the completion callback function for ELS Response IOCB | |
3086 | * command. In normal case, this callback function just properly sets the | |
3087 | * nlp_flag bitmap in the ndlp data structure, if the mbox command reference | |
3088 | * field in the command IOCB is not NULL, the referred mailbox command will | |
3089 | * be send out, and then invokes the lpfc_els_free_iocb() routine to release | |
3090 | * the IOCB. Under error conditions, such as when a LS_RJT is returned or a | |
3091 | * link down event occurred during the discovery, the lpfc_nlp_not_used() | |
3092 | * routine shall be invoked trying to release the ndlp if no other threads | |
3093 | * are currently referring it. | |
3094 | **/ | |
dea3101e | 3095 | static void |
858c9f6c | 3096 | lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
329f9bc7 | 3097 | struct lpfc_iocbq *rspiocb) |
dea3101e | 3098 | { |
2e0fef85 JS |
3099 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; |
3100 | struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL; | |
3101 | struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL; | |
87af33fe JS |
3102 | IOCB_t *irsp; |
3103 | uint8_t *pcmd; | |
dea3101e | 3104 | LPFC_MBOXQ_t *mbox = NULL; |
2e0fef85 | 3105 | struct lpfc_dmabuf *mp = NULL; |
87af33fe | 3106 | uint32_t ls_rjt = 0; |
dea3101e | 3107 | |
33ccf8d1 JS |
3108 | irsp = &rspiocb->iocb; |
3109 | ||
dea3101e JB |
3110 | if (cmdiocb->context_un.mbox) |
3111 | mbox = cmdiocb->context_un.mbox; | |
3112 | ||
fa4066b6 JS |
3113 | /* First determine if this is a LS_RJT cmpl. Note, this callback |
3114 | * function can have cmdiocb->contest1 (ndlp) field set to NULL. | |
3115 | */ | |
87af33fe | 3116 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt); |
58da1ffb JS |
3117 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3118 | (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) { | |
fa4066b6 | 3119 | /* A LS_RJT associated with Default RPI cleanup has its own |
3ad2f3fb | 3120 | * separate code path. |
87af33fe JS |
3121 | */ |
3122 | if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
3123 | ls_rjt = 1; | |
3124 | } | |
3125 | ||
dea3101e | 3126 | /* Check to see if link went down during discovery */ |
58da1ffb | 3127 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) { |
dea3101e | 3128 | if (mbox) { |
14691150 JS |
3129 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3130 | if (mp) { | |
3131 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3132 | kfree(mp); | |
3133 | } | |
329f9bc7 | 3134 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 3135 | } |
58da1ffb JS |
3136 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) && |
3137 | (ndlp->nlp_flag & NLP_RM_DFLT_RPI)) | |
fa4066b6 | 3138 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3139 | ndlp = NULL; |
fa4066b6 JS |
3140 | /* Indicate the node has already released, |
3141 | * should not reference to it from within | |
3142 | * the routine lpfc_els_free_iocb. | |
3143 | */ | |
3144 | cmdiocb->context1 = NULL; | |
3145 | } | |
dea3101e JB |
3146 | goto out; |
3147 | } | |
3148 | ||
858c9f6c | 3149 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
51ef4c26 | 3150 | "ELS rsp cmpl: status:x%x/x%x did:x%x", |
858c9f6c | 3151 | irsp->ulpStatus, irsp->un.ulpWord[4], |
51ef4c26 | 3152 | cmdiocb->iocb.un.elsreq64.remoteID); |
dea3101e | 3153 | /* ELS response tag <ulpIoTag> completes */ |
e8b62011 JS |
3154 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3155 | "0110 ELS response tag x%x completes " | |
3156 | "Data: x%x x%x x%x x%x x%x x%x x%x\n", | |
3157 | cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus, | |
3158 | rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout, | |
3159 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3160 | ndlp->nlp_rpi); | |
dea3101e JB |
3161 | if (mbox) { |
3162 | if ((rspiocb->iocb.ulpStatus == 0) | |
3163 | && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) { | |
2e0fef85 | 3164 | lpfc_unreg_rpi(vport, ndlp); |
e47c9093 JS |
3165 | /* Increment reference count to ndlp to hold the |
3166 | * reference to ndlp for the callback function. | |
3167 | */ | |
329f9bc7 | 3168 | mbox->context2 = lpfc_nlp_get(ndlp); |
2e0fef85 | 3169 | mbox->vport = vport; |
858c9f6c JS |
3170 | if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) { |
3171 | mbox->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
3172 | mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
3173 | } | |
3174 | else { | |
3175 | mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login; | |
3176 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
3177 | lpfc_nlp_set_state(vport, ndlp, | |
2e0fef85 | 3178 | NLP_STE_REG_LOGIN_ISSUE); |
858c9f6c | 3179 | } |
0b727fea | 3180 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
e47c9093 | 3181 | != MBX_NOT_FINISHED) |
dea3101e | 3182 | goto out; |
e47c9093 JS |
3183 | else |
3184 | /* Decrement the ndlp reference count we | |
3185 | * set for this failed mailbox command. | |
3186 | */ | |
3187 | lpfc_nlp_put(ndlp); | |
98c9ea5c JS |
3188 | |
3189 | /* ELS rsp: Cannot issue reg_login for <NPortid> */ | |
3190 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
3191 | "0138 ELS rsp: Cannot issue reg_login for x%x " | |
3192 | "Data: x%x x%x x%x\n", | |
3193 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3194 | ndlp->nlp_rpi); | |
3195 | ||
fa4066b6 | 3196 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3197 | ndlp = NULL; |
fa4066b6 JS |
3198 | /* Indicate node has already been released, |
3199 | * should not reference to it from within | |
3200 | * the routine lpfc_els_free_iocb. | |
3201 | */ | |
3202 | cmdiocb->context1 = NULL; | |
3203 | } | |
dea3101e | 3204 | } else { |
858c9f6c JS |
3205 | /* Do not drop node for lpfc_els_abort'ed ELS cmds */ |
3206 | if (!lpfc_error_lost_link(irsp) && | |
3207 | ndlp->nlp_flag & NLP_ACC_REGLOGIN) { | |
fa4066b6 | 3208 | if (lpfc_nlp_not_used(ndlp)) { |
98c9ea5c | 3209 | ndlp = NULL; |
fa4066b6 JS |
3210 | /* Indicate node has already been |
3211 | * released, should not reference | |
3212 | * to it from within the routine | |
3213 | * lpfc_els_free_iocb. | |
3214 | */ | |
3215 | cmdiocb->context1 = NULL; | |
3216 | } | |
dea3101e JB |
3217 | } |
3218 | } | |
14691150 JS |
3219 | mp = (struct lpfc_dmabuf *) mbox->context1; |
3220 | if (mp) { | |
3221 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
3222 | kfree(mp); | |
3223 | } | |
3224 | mempool_free(mbox, phba->mbox_mem_pool); | |
dea3101e JB |
3225 | } |
3226 | out: | |
58da1ffb | 3227 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { |
2e0fef85 | 3228 | spin_lock_irq(shost->host_lock); |
858c9f6c | 3229 | ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI); |
2e0fef85 | 3230 | spin_unlock_irq(shost->host_lock); |
87af33fe JS |
3231 | |
3232 | /* If the node is not being used by another discovery thread, | |
3233 | * and we are sending a reject, we are done with it. | |
3234 | * Release driver reference count here and free associated | |
3235 | * resources. | |
3236 | */ | |
3237 | if (ls_rjt) | |
fa4066b6 JS |
3238 | if (lpfc_nlp_not_used(ndlp)) |
3239 | /* Indicate node has already been released, | |
3240 | * should not reference to it from within | |
3241 | * the routine lpfc_els_free_iocb. | |
3242 | */ | |
3243 | cmdiocb->context1 = NULL; | |
dea3101e | 3244 | } |
87af33fe | 3245 | |
dea3101e JB |
3246 | lpfc_els_free_iocb(phba, cmdiocb); |
3247 | return; | |
3248 | } | |
3249 | ||
e59058c4 | 3250 | /** |
3621a710 | 3251 | * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command |
e59058c4 JS |
3252 | * @vport: pointer to a host virtual N_Port data structure. |
3253 | * @flag: the els command code to be accepted. | |
3254 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3255 | * @ndlp: pointer to a node-list data structure. | |
3256 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3257 | * | |
3258 | * This routine prepares and issues an Accept (ACC) response IOCB | |
3259 | * command. It uses the @flag to properly set up the IOCB field for the | |
3260 | * specific ACC response command to be issued and invokes the | |
3261 | * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a | |
3262 | * @mbox pointer is passed in, it will be put into the context_un.mbox | |
3263 | * field of the IOCB for the completion callback function to issue the | |
3264 | * mailbox command to the HBA later when callback is invoked. | |
3265 | * | |
3266 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3267 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3268 | * will be stored into the context1 field of the IOCB for the completion | |
3269 | * callback function to the corresponding response ELS IOCB command. | |
3270 | * | |
3271 | * Return code | |
3272 | * 0 - Successfully issued acc response | |
3273 | * 1 - Failed to issue acc response | |
3274 | **/ | |
dea3101e | 3275 | int |
2e0fef85 JS |
3276 | lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, |
3277 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, | |
51ef4c26 | 3278 | LPFC_MBOXQ_t *mbox) |
dea3101e | 3279 | { |
2e0fef85 JS |
3280 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3281 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3282 | IOCB_t *icmd; |
3283 | IOCB_t *oldcmd; | |
3284 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3285 | struct lpfc_sli *psli; |
3286 | uint8_t *pcmd; | |
3287 | uint16_t cmdsize; | |
3288 | int rc; | |
82d9a2a2 | 3289 | ELS_PKT *els_pkt_ptr; |
dea3101e JB |
3290 | |
3291 | psli = &phba->sli; | |
dea3101e JB |
3292 | oldcmd = &oldiocb->iocb; |
3293 | ||
3294 | switch (flag) { | |
3295 | case ELS_CMD_ACC: | |
92d7f7b0 | 3296 | cmdsize = sizeof(uint32_t); |
2e0fef85 JS |
3297 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3298 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3299 | if (!elsiocb) { |
2e0fef85 | 3300 | spin_lock_irq(shost->host_lock); |
5024ab17 | 3301 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3302 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 3303 | return 1; |
dea3101e | 3304 | } |
2e0fef85 | 3305 | |
dea3101e JB |
3306 | icmd = &elsiocb->iocb; |
3307 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3308 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3309 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3310 | pcmd += sizeof(uint32_t); |
858c9f6c JS |
3311 | |
3312 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3313 | "Issue ACC: did:x%x flg:x%x", | |
3314 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e JB |
3315 | break; |
3316 | case ELS_CMD_PLOGI: | |
92d7f7b0 | 3317 | cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t)); |
2e0fef85 JS |
3318 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
3319 | ndlp, ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3320 | if (!elsiocb) |
c9f8735b | 3321 | return 1; |
488d1469 | 3322 | |
dea3101e JB |
3323 | icmd = &elsiocb->iocb; |
3324 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3325 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3326 | ||
3327 | if (mbox) | |
3328 | elsiocb->context_un.mbox = mbox; | |
3329 | ||
3330 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 JS |
3331 | pcmd += sizeof(uint32_t); |
3332 | memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm)); | |
858c9f6c JS |
3333 | |
3334 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3335 | "Issue ACC PLOGI: did:x%x flg:x%x", | |
3336 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
dea3101e | 3337 | break; |
82d9a2a2 | 3338 | case ELS_CMD_PRLO: |
92d7f7b0 | 3339 | cmdsize = sizeof(uint32_t) + sizeof(PRLO); |
2e0fef85 | 3340 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, |
82d9a2a2 JS |
3341 | ndlp, ndlp->nlp_DID, ELS_CMD_PRLO); |
3342 | if (!elsiocb) | |
3343 | return 1; | |
3344 | ||
3345 | icmd = &elsiocb->iocb; | |
3346 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3347 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3348 | ||
3349 | memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt, | |
92d7f7b0 | 3350 | sizeof(uint32_t) + sizeof(PRLO)); |
82d9a2a2 JS |
3351 | *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC; |
3352 | els_pkt_ptr = (ELS_PKT *) pcmd; | |
3353 | els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED; | |
858c9f6c JS |
3354 | |
3355 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, | |
3356 | "Issue ACC PRLO: did:x%x flg:x%x", | |
3357 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
82d9a2a2 | 3358 | break; |
dea3101e | 3359 | default: |
c9f8735b | 3360 | return 1; |
dea3101e | 3361 | } |
dea3101e | 3362 | /* Xmit ELS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3363 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3364 | "0128 Xmit ELS ACC response tag x%x, XRI: x%x, " | |
3365 | "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x\n", | |
3366 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3367 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3368 | ndlp->nlp_rpi); | |
dea3101e | 3369 | if (ndlp->nlp_flag & NLP_LOGO_ACC) { |
2e0fef85 | 3370 | spin_lock_irq(shost->host_lock); |
c9f8735b | 3371 | ndlp->nlp_flag &= ~NLP_LOGO_ACC; |
2e0fef85 | 3372 | spin_unlock_irq(shost->host_lock); |
dea3101e JB |
3373 | elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc; |
3374 | } else { | |
858c9f6c | 3375 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e JB |
3376 | } |
3377 | ||
3378 | phba->fc_stat.elsXmitACC++; | |
3772a991 | 3379 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3380 | if (rc == IOCB_ERROR) { |
3381 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3382 | return 1; |
dea3101e | 3383 | } |
c9f8735b | 3384 | return 0; |
dea3101e JB |
3385 | } |
3386 | ||
e59058c4 | 3387 | /** |
3621a710 | 3388 | * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command |
e59058c4 JS |
3389 | * @vport: pointer to a virtual N_Port data structure. |
3390 | * @rejectError: | |
3391 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3392 | * @ndlp: pointer to a node-list data structure. | |
3393 | * @mbox: pointer to the driver internal queue element for mailbox command. | |
3394 | * | |
3395 | * This routine prepares and issue an Reject (RJT) response IOCB | |
3396 | * command. If a @mbox pointer is passed in, it will be put into the | |
3397 | * context_un.mbox field of the IOCB for the completion callback function | |
3398 | * to issue to the HBA later. | |
3399 | * | |
3400 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3401 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3402 | * will be stored into the context1 field of the IOCB for the completion | |
3403 | * callback function to the reject response ELS IOCB command. | |
3404 | * | |
3405 | * Return code | |
3406 | * 0 - Successfully issued reject response | |
3407 | * 1 - Failed to issue reject response | |
3408 | **/ | |
dea3101e | 3409 | int |
2e0fef85 | 3410 | lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, |
858c9f6c JS |
3411 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, |
3412 | LPFC_MBOXQ_t *mbox) | |
dea3101e | 3413 | { |
2e0fef85 | 3414 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3415 | IOCB_t *icmd; |
3416 | IOCB_t *oldcmd; | |
3417 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3418 | struct lpfc_sli *psli; |
3419 | uint8_t *pcmd; | |
3420 | uint16_t cmdsize; | |
3421 | int rc; | |
3422 | ||
3423 | psli = &phba->sli; | |
92d7f7b0 | 3424 | cmdsize = 2 * sizeof(uint32_t); |
2e0fef85 JS |
3425 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3426 | ndlp->nlp_DID, ELS_CMD_LS_RJT); | |
488d1469 | 3427 | if (!elsiocb) |
c9f8735b | 3428 | return 1; |
dea3101e JB |
3429 | |
3430 | icmd = &elsiocb->iocb; | |
3431 | oldcmd = &oldiocb->iocb; | |
3432 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3433 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
3434 | ||
3435 | *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT; | |
92d7f7b0 | 3436 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3437 | *((uint32_t *) (pcmd)) = rejectError; |
3438 | ||
51ef4c26 | 3439 | if (mbox) |
858c9f6c | 3440 | elsiocb->context_un.mbox = mbox; |
858c9f6c | 3441 | |
dea3101e | 3442 | /* Xmit ELS RJT <err> response tag <ulpIoTag> */ |
e8b62011 JS |
3443 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3444 | "0129 Xmit ELS RJT x%x response tag x%x " | |
3445 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
3446 | "rpi x%x\n", | |
3447 | rejectError, elsiocb->iotag, | |
3448 | elsiocb->iocb.ulpContext, ndlp->nlp_DID, | |
3449 | ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi); | |
858c9f6c JS |
3450 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3451 | "Issue LS_RJT: did:x%x flg:x%x err:x%x", | |
3452 | ndlp->nlp_DID, ndlp->nlp_flag, rejectError); | |
3453 | ||
dea3101e | 3454 | phba->fc_stat.elsXmitLSRJT++; |
858c9f6c | 3455 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3456 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
51ef4c26 | 3457 | |
dea3101e JB |
3458 | if (rc == IOCB_ERROR) { |
3459 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3460 | return 1; |
dea3101e | 3461 | } |
c9f8735b | 3462 | return 0; |
dea3101e JB |
3463 | } |
3464 | ||
e59058c4 | 3465 | /** |
3621a710 | 3466 | * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd |
e59058c4 JS |
3467 | * @vport: pointer to a virtual N_Port data structure. |
3468 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3469 | * @ndlp: pointer to a node-list data structure. | |
3470 | * | |
3471 | * This routine prepares and issues an Accept (ACC) response to Address | |
3472 | * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB | |
3473 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3474 | * | |
3475 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3476 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3477 | * will be stored into the context1 field of the IOCB for the completion | |
3478 | * callback function to the ADISC Accept response ELS IOCB command. | |
3479 | * | |
3480 | * Return code | |
3481 | * 0 - Successfully issued acc adisc response | |
3482 | * 1 - Failed to issue adisc acc response | |
3483 | **/ | |
dea3101e | 3484 | int |
2e0fef85 JS |
3485 | lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
3486 | struct lpfc_nodelist *ndlp) | |
dea3101e | 3487 | { |
2e0fef85 | 3488 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3489 | ADISC *ap; |
2e0fef85 | 3490 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3491 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3492 | uint8_t *pcmd; |
3493 | uint16_t cmdsize; | |
3494 | int rc; | |
3495 | ||
92d7f7b0 | 3496 | cmdsize = sizeof(uint32_t) + sizeof(ADISC); |
2e0fef85 JS |
3497 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3498 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3499 | if (!elsiocb) |
c9f8735b | 3500 | return 1; |
dea3101e | 3501 | |
5b8bd0c9 JS |
3502 | icmd = &elsiocb->iocb; |
3503 | oldcmd = &oldiocb->iocb; | |
3504 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
3505 | ||
dea3101e | 3506 | /* Xmit ADISC ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3507 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3508 | "0130 Xmit ADISC ACC response iotag x%x xri: " | |
3509 | "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n", | |
3510 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3511 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3512 | ndlp->nlp_rpi); | |
dea3101e JB |
3513 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3514 | ||
3515 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 3516 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3517 | |
3518 | ap = (ADISC *) (pcmd); | |
3519 | ap->hardAL_PA = phba->fc_pref_ALPA; | |
92d7f7b0 JS |
3520 | memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name)); |
3521 | memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
2e0fef85 | 3522 | ap->DID = be32_to_cpu(vport->fc_myDID); |
dea3101e | 3523 | |
858c9f6c JS |
3524 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3525 | "Issue ACC ADISC: did:x%x flg:x%x", | |
3526 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3527 | ||
dea3101e | 3528 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3529 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
3772a991 | 3530 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3531 | if (rc == IOCB_ERROR) { |
3532 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3533 | return 1; |
dea3101e | 3534 | } |
c9f8735b | 3535 | return 0; |
dea3101e JB |
3536 | } |
3537 | ||
e59058c4 | 3538 | /** |
3621a710 | 3539 | * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd |
e59058c4 JS |
3540 | * @vport: pointer to a virtual N_Port data structure. |
3541 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3542 | * @ndlp: pointer to a node-list data structure. | |
3543 | * | |
3544 | * This routine prepares and issues an Accept (ACC) response to Process | |
3545 | * Login (PRLI) ELS command. It simply prepares the payload of the IOCB | |
3546 | * and invokes the lpfc_sli_issue_iocb() routine to send out the command. | |
3547 | * | |
3548 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3549 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3550 | * will be stored into the context1 field of the IOCB for the completion | |
3551 | * callback function to the PRLI Accept response ELS IOCB command. | |
3552 | * | |
3553 | * Return code | |
3554 | * 0 - Successfully issued acc prli response | |
3555 | * 1 - Failed to issue acc prli response | |
3556 | **/ | |
dea3101e | 3557 | int |
2e0fef85 | 3558 | lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, |
5b8bd0c9 | 3559 | struct lpfc_nodelist *ndlp) |
dea3101e | 3560 | { |
2e0fef85 | 3561 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
3562 | PRLI *npr; |
3563 | lpfc_vpd_t *vpd; | |
3564 | IOCB_t *icmd; | |
3565 | IOCB_t *oldcmd; | |
3566 | struct lpfc_iocbq *elsiocb; | |
dea3101e JB |
3567 | struct lpfc_sli *psli; |
3568 | uint8_t *pcmd; | |
3569 | uint16_t cmdsize; | |
3570 | int rc; | |
3571 | ||
3572 | psli = &phba->sli; | |
dea3101e | 3573 | |
92d7f7b0 | 3574 | cmdsize = sizeof(uint32_t) + sizeof(PRLI); |
2e0fef85 | 3575 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
92d7f7b0 | 3576 | ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK))); |
c9f8735b JW |
3577 | if (!elsiocb) |
3578 | return 1; | |
dea3101e | 3579 | |
5b8bd0c9 JS |
3580 | icmd = &elsiocb->iocb; |
3581 | oldcmd = &oldiocb->iocb; | |
3582 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3583 | /* Xmit PRLI ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3584 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3585 | "0131 Xmit PRLI ACC response tag x%x xri x%x, " | |
3586 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
3587 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
3588 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
3589 | ndlp->nlp_rpi); | |
dea3101e JB |
3590 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
3591 | ||
3592 | *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)); | |
92d7f7b0 | 3593 | pcmd += sizeof(uint32_t); |
dea3101e JB |
3594 | |
3595 | /* For PRLI, remainder of payload is PRLI parameter page */ | |
92d7f7b0 | 3596 | memset(pcmd, 0, sizeof(PRLI)); |
dea3101e JB |
3597 | |
3598 | npr = (PRLI *) pcmd; | |
3599 | vpd = &phba->vpd; | |
3600 | /* | |
0d2b6b83 JS |
3601 | * If the remote port is a target and our firmware version is 3.20 or |
3602 | * later, set the following bits for FC-TAPE support. | |
dea3101e | 3603 | */ |
0d2b6b83 JS |
3604 | if ((ndlp->nlp_type & NLP_FCP_TARGET) && |
3605 | (vpd->rev.feaLevelHigh >= 0x02)) { | |
dea3101e JB |
3606 | npr->ConfmComplAllowed = 1; |
3607 | npr->Retry = 1; | |
3608 | npr->TaskRetryIdReq = 1; | |
3609 | } | |
3610 | ||
3611 | npr->acceptRspCode = PRLI_REQ_EXECUTED; | |
3612 | npr->estabImagePair = 1; | |
3613 | npr->readXferRdyDis = 1; | |
3614 | npr->ConfmComplAllowed = 1; | |
3615 | ||
3616 | npr->prliType = PRLI_FCP_TYPE; | |
3617 | npr->initiatorFunc = 1; | |
3618 | ||
858c9f6c JS |
3619 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3620 | "Issue ACC PRLI: did:x%x flg:x%x", | |
3621 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3622 | ||
dea3101e | 3623 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3624 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
dea3101e | 3625 | |
3772a991 | 3626 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3627 | if (rc == IOCB_ERROR) { |
3628 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3629 | return 1; |
dea3101e | 3630 | } |
c9f8735b | 3631 | return 0; |
dea3101e JB |
3632 | } |
3633 | ||
e59058c4 | 3634 | /** |
3621a710 | 3635 | * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command |
e59058c4 JS |
3636 | * @vport: pointer to a virtual N_Port data structure. |
3637 | * @format: rnid command format. | |
3638 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
3639 | * @ndlp: pointer to a node-list data structure. | |
3640 | * | |
3641 | * This routine issues a Request Node Identification Data (RNID) Accept | |
3642 | * (ACC) response. It constructs the RNID ACC response command according to | |
3643 | * the proper @format and then calls the lpfc_sli_issue_iocb() routine to | |
3644 | * issue the response. Note that this command does not need to hold the ndlp | |
3645 | * reference count for the callback. So, the ndlp reference count taken by | |
3646 | * the lpfc_prep_els_iocb() routine is put back and the context1 field of | |
3647 | * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that | |
3648 | * there is no ndlp reference available. | |
3649 | * | |
3650 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
3651 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
3652 | * will be stored into the context1 field of the IOCB for the completion | |
3653 | * callback function. However, for the RNID Accept Response ELS command, | |
3654 | * this is undone later by this routine after the IOCB is allocated. | |
3655 | * | |
3656 | * Return code | |
3657 | * 0 - Successfully issued acc rnid response | |
3658 | * 1 - Failed to issue acc rnid response | |
3659 | **/ | |
dea3101e | 3660 | static int |
2e0fef85 | 3661 | lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, |
329f9bc7 | 3662 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) |
dea3101e | 3663 | { |
2e0fef85 | 3664 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3665 | RNID *rn; |
2e0fef85 | 3666 | IOCB_t *icmd, *oldcmd; |
dea3101e | 3667 | struct lpfc_iocbq *elsiocb; |
dea3101e JB |
3668 | struct lpfc_sli *psli; |
3669 | uint8_t *pcmd; | |
3670 | uint16_t cmdsize; | |
3671 | int rc; | |
3672 | ||
3673 | psli = &phba->sli; | |
92d7f7b0 JS |
3674 | cmdsize = sizeof(uint32_t) + sizeof(uint32_t) |
3675 | + (2 * sizeof(struct lpfc_name)); | |
dea3101e | 3676 | if (format) |
92d7f7b0 | 3677 | cmdsize += sizeof(RNID_TOP_DISC); |
dea3101e | 3678 | |
2e0fef85 JS |
3679 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
3680 | ndlp->nlp_DID, ELS_CMD_ACC); | |
488d1469 | 3681 | if (!elsiocb) |
c9f8735b | 3682 | return 1; |
dea3101e | 3683 | |
5b8bd0c9 JS |
3684 | icmd = &elsiocb->iocb; |
3685 | oldcmd = &oldiocb->iocb; | |
3686 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
dea3101e | 3687 | /* Xmit RNID ACC response tag <ulpIoTag> */ |
e8b62011 JS |
3688 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
3689 | "0132 Xmit RNID ACC response tag x%x xri x%x\n", | |
3690 | elsiocb->iotag, elsiocb->iocb.ulpContext); | |
dea3101e | 3691 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); |
dea3101e | 3692 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; |
92d7f7b0 | 3693 | pcmd += sizeof(uint32_t); |
dea3101e | 3694 | |
92d7f7b0 | 3695 | memset(pcmd, 0, sizeof(RNID)); |
dea3101e JB |
3696 | rn = (RNID *) (pcmd); |
3697 | rn->Format = format; | |
92d7f7b0 JS |
3698 | rn->CommonLen = (2 * sizeof(struct lpfc_name)); |
3699 | memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name)); | |
3700 | memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
dea3101e JB |
3701 | switch (format) { |
3702 | case 0: | |
3703 | rn->SpecificLen = 0; | |
3704 | break; | |
3705 | case RNID_TOPOLOGY_DISC: | |
92d7f7b0 | 3706 | rn->SpecificLen = sizeof(RNID_TOP_DISC); |
dea3101e | 3707 | memcpy(&rn->un.topologyDisc.portName, |
92d7f7b0 | 3708 | &vport->fc_portname, sizeof(struct lpfc_name)); |
dea3101e JB |
3709 | rn->un.topologyDisc.unitType = RNID_HBA; |
3710 | rn->un.topologyDisc.physPort = 0; | |
3711 | rn->un.topologyDisc.attachedNodes = 0; | |
3712 | break; | |
3713 | default: | |
3714 | rn->CommonLen = 0; | |
3715 | rn->SpecificLen = 0; | |
3716 | break; | |
3717 | } | |
3718 | ||
858c9f6c JS |
3719 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP, |
3720 | "Issue ACC RNID: did:x%x flg:x%x", | |
3721 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
3722 | ||
dea3101e | 3723 | phba->fc_stat.elsXmitACC++; |
858c9f6c | 3724 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
329f9bc7 | 3725 | lpfc_nlp_put(ndlp); |
dea3101e JB |
3726 | elsiocb->context1 = NULL; /* Don't need ndlp for cmpl, |
3727 | * it could be freed */ | |
3728 | ||
3772a991 | 3729 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); |
dea3101e JB |
3730 | if (rc == IOCB_ERROR) { |
3731 | lpfc_els_free_iocb(phba, elsiocb); | |
c9f8735b | 3732 | return 1; |
dea3101e | 3733 | } |
c9f8735b | 3734 | return 0; |
dea3101e JB |
3735 | } |
3736 | ||
e59058c4 | 3737 | /** |
3621a710 | 3738 | * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport |
e59058c4 JS |
3739 | * @vport: pointer to a host virtual N_Port data structure. |
3740 | * | |
3741 | * This routine issues Address Discover (ADISC) ELS commands to those | |
3742 | * N_Ports which are in node port recovery state and ADISC has not been issued | |
3743 | * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the | |
3744 | * lpfc_issue_els_adisc() routine, the per @vport number of discover count | |
3745 | * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a | |
3746 | * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will | |
3747 | * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC | |
3748 | * IOCBs quit for later pick up. On the other hand, after walking through | |
3749 | * all the ndlps with the @vport and there is none ADISC IOCB issued, the | |
3750 | * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is | |
3751 | * no more ADISC need to be sent. | |
3752 | * | |
3753 | * Return code | |
3754 | * The number of N_Ports with adisc issued. | |
3755 | **/ | |
dea3101e | 3756 | int |
2e0fef85 | 3757 | lpfc_els_disc_adisc(struct lpfc_vport *vport) |
dea3101e | 3758 | { |
2e0fef85 | 3759 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3760 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3761 | int sentadisc = 0; |
dea3101e | 3762 | |
685f0bf7 | 3763 | /* go thru NPR nodes and issue any remaining ELS ADISCs */ |
2e0fef85 | 3764 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 JS |
3765 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3766 | continue; | |
685f0bf7 JS |
3767 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3768 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3769 | (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) { | |
2e0fef85 | 3770 | spin_lock_irq(shost->host_lock); |
685f0bf7 | 3771 | ndlp->nlp_flag &= ~NLP_NPR_ADISC; |
2e0fef85 | 3772 | spin_unlock_irq(shost->host_lock); |
685f0bf7 | 3773 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 JS |
3774 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE); |
3775 | lpfc_issue_els_adisc(vport, ndlp, 0); | |
685f0bf7 | 3776 | sentadisc++; |
2e0fef85 JS |
3777 | vport->num_disc_nodes++; |
3778 | if (vport->num_disc_nodes >= | |
3de2a653 | 3779 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3780 | spin_lock_irq(shost->host_lock); |
3781 | vport->fc_flag |= FC_NLP_MORE; | |
3782 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3783 | break; |
dea3101e JB |
3784 | } |
3785 | } | |
3786 | } | |
3787 | if (sentadisc == 0) { | |
2e0fef85 JS |
3788 | spin_lock_irq(shost->host_lock); |
3789 | vport->fc_flag &= ~FC_NLP_MORE; | |
3790 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3791 | } |
2fe165b6 | 3792 | return sentadisc; |
dea3101e JB |
3793 | } |
3794 | ||
e59058c4 | 3795 | /** |
3621a710 | 3796 | * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc |
e59058c4 JS |
3797 | * @vport: pointer to a host virtual N_Port data structure. |
3798 | * | |
3799 | * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports | |
3800 | * which are in node port recovery state, with a @vport. Each time an ELS | |
3801 | * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine, | |
3802 | * the per @vport number of discover count (num_disc_nodes) shall be | |
3803 | * incremented. If the num_disc_nodes reaches a pre-configured threshold | |
3804 | * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE | |
3805 | * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for | |
3806 | * later pick up. On the other hand, after walking through all the ndlps with | |
3807 | * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag | |
3808 | * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC | |
3809 | * PLOGI need to be sent. | |
3810 | * | |
3811 | * Return code | |
3812 | * The number of N_Ports with plogi issued. | |
3813 | **/ | |
dea3101e | 3814 | int |
2e0fef85 | 3815 | lpfc_els_disc_plogi(struct lpfc_vport *vport) |
dea3101e | 3816 | { |
2e0fef85 | 3817 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e | 3818 | struct lpfc_nodelist *ndlp, *next_ndlp; |
2e0fef85 | 3819 | int sentplogi = 0; |
dea3101e | 3820 | |
2e0fef85 JS |
3821 | /* go thru NPR nodes and issue any remaining ELS PLOGIs */ |
3822 | list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
3823 | if (!NLP_CHK_NODE_ACT(ndlp)) |
3824 | continue; | |
685f0bf7 JS |
3825 | if (ndlp->nlp_state == NLP_STE_NPR_NODE && |
3826 | (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 && | |
3827 | (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 && | |
3828 | (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) { | |
3829 | ndlp->nlp_prev_state = ndlp->nlp_state; | |
2e0fef85 JS |
3830 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
3831 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); | |
685f0bf7 | 3832 | sentplogi++; |
2e0fef85 JS |
3833 | vport->num_disc_nodes++; |
3834 | if (vport->num_disc_nodes >= | |
3de2a653 | 3835 | vport->cfg_discovery_threads) { |
2e0fef85 JS |
3836 | spin_lock_irq(shost->host_lock); |
3837 | vport->fc_flag |= FC_NLP_MORE; | |
3838 | spin_unlock_irq(shost->host_lock); | |
685f0bf7 | 3839 | break; |
dea3101e JB |
3840 | } |
3841 | } | |
3842 | } | |
87af33fe JS |
3843 | if (sentplogi) { |
3844 | lpfc_set_disctmo(vport); | |
3845 | } | |
3846 | else { | |
2e0fef85 JS |
3847 | spin_lock_irq(shost->host_lock); |
3848 | vport->fc_flag &= ~FC_NLP_MORE; | |
3849 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 3850 | } |
2fe165b6 | 3851 | return sentplogi; |
dea3101e JB |
3852 | } |
3853 | ||
e59058c4 | 3854 | /** |
3621a710 | 3855 | * lpfc_els_flush_rscn - Clean up any rscn activities with a vport |
e59058c4 JS |
3856 | * @vport: pointer to a host virtual N_Port data structure. |
3857 | * | |
3858 | * This routine cleans up any Registration State Change Notification | |
3859 | * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the | |
3860 | * @vport together with the host_lock is used to prevent multiple thread | |
3861 | * trying to access the RSCN array on a same @vport at the same time. | |
3862 | **/ | |
92d7f7b0 | 3863 | void |
2e0fef85 | 3864 | lpfc_els_flush_rscn(struct lpfc_vport *vport) |
dea3101e | 3865 | { |
2e0fef85 JS |
3866 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
3867 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
3868 | int i; |
3869 | ||
7f5f3d0d JS |
3870 | spin_lock_irq(shost->host_lock); |
3871 | if (vport->fc_rscn_flush) { | |
3872 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3873 | spin_unlock_irq(shost->host_lock); | |
3874 | return; | |
3875 | } | |
3876 | /* Indicate we are walking lpfc_els_flush_rscn on this vport */ | |
3877 | vport->fc_rscn_flush = 1; | |
3878 | spin_unlock_irq(shost->host_lock); | |
3879 | ||
2e0fef85 | 3880 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 | 3881 | lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]); |
2e0fef85 | 3882 | vport->fc_rscn_id_list[i] = NULL; |
dea3101e | 3883 | } |
2e0fef85 JS |
3884 | spin_lock_irq(shost->host_lock); |
3885 | vport->fc_rscn_id_cnt = 0; | |
3886 | vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY); | |
3887 | spin_unlock_irq(shost->host_lock); | |
3888 | lpfc_can_disctmo(vport); | |
7f5f3d0d JS |
3889 | /* Indicate we are done walking this fc_rscn_id_list */ |
3890 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
3891 | } |
3892 | ||
e59058c4 | 3893 | /** |
3621a710 | 3894 | * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did |
e59058c4 JS |
3895 | * @vport: pointer to a host virtual N_Port data structure. |
3896 | * @did: remote destination port identifier. | |
3897 | * | |
3898 | * This routine checks whether there is any pending Registration State | |
3899 | * Configuration Notification (RSCN) to a @did on @vport. | |
3900 | * | |
3901 | * Return code | |
3902 | * None zero - The @did matched with a pending rscn | |
3903 | * 0 - not able to match @did with a pending rscn | |
3904 | **/ | |
dea3101e | 3905 | int |
2e0fef85 | 3906 | lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) |
dea3101e JB |
3907 | { |
3908 | D_ID ns_did; | |
3909 | D_ID rscn_did; | |
dea3101e | 3910 | uint32_t *lp; |
92d7f7b0 | 3911 | uint32_t payload_len, i; |
7f5f3d0d | 3912 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
dea3101e JB |
3913 | |
3914 | ns_did.un.word = did; | |
dea3101e JB |
3915 | |
3916 | /* Never match fabric nodes for RSCNs */ | |
3917 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
2e0fef85 | 3918 | return 0; |
dea3101e JB |
3919 | |
3920 | /* If we are doing a FULL RSCN rediscovery, match everything */ | |
2e0fef85 | 3921 | if (vport->fc_flag & FC_RSCN_DISCOVERY) |
c9f8735b | 3922 | return did; |
dea3101e | 3923 | |
7f5f3d0d JS |
3924 | spin_lock_irq(shost->host_lock); |
3925 | if (vport->fc_rscn_flush) { | |
3926 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
3927 | spin_unlock_irq(shost->host_lock); | |
3928 | return 0; | |
3929 | } | |
3930 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
3931 | vport->fc_rscn_flush = 1; | |
3932 | spin_unlock_irq(shost->host_lock); | |
2e0fef85 | 3933 | for (i = 0; i < vport->fc_rscn_id_cnt; i++) { |
92d7f7b0 JS |
3934 | lp = vport->fc_rscn_id_list[i]->virt; |
3935 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); | |
3936 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 3937 | while (payload_len) { |
92d7f7b0 JS |
3938 | rscn_did.un.word = be32_to_cpu(*lp++); |
3939 | payload_len -= sizeof(uint32_t); | |
eaf15d5b JS |
3940 | switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { |
3941 | case RSCN_ADDRESS_FORMAT_PORT: | |
6fb120a7 JS |
3942 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
3943 | && (ns_did.un.b.area == rscn_did.un.b.area) | |
3944 | && (ns_did.un.b.id == rscn_did.un.b.id)) | |
7f5f3d0d | 3945 | goto return_did_out; |
dea3101e | 3946 | break; |
eaf15d5b | 3947 | case RSCN_ADDRESS_FORMAT_AREA: |
dea3101e JB |
3948 | if ((ns_did.un.b.domain == rscn_did.un.b.domain) |
3949 | && (ns_did.un.b.area == rscn_did.un.b.area)) | |
7f5f3d0d | 3950 | goto return_did_out; |
dea3101e | 3951 | break; |
eaf15d5b | 3952 | case RSCN_ADDRESS_FORMAT_DOMAIN: |
dea3101e | 3953 | if (ns_did.un.b.domain == rscn_did.un.b.domain) |
7f5f3d0d | 3954 | goto return_did_out; |
dea3101e | 3955 | break; |
eaf15d5b | 3956 | case RSCN_ADDRESS_FORMAT_FABRIC: |
7f5f3d0d | 3957 | goto return_did_out; |
dea3101e JB |
3958 | } |
3959 | } | |
92d7f7b0 | 3960 | } |
7f5f3d0d JS |
3961 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ |
3962 | vport->fc_rscn_flush = 0; | |
92d7f7b0 | 3963 | return 0; |
7f5f3d0d JS |
3964 | return_did_out: |
3965 | /* Indicate we are done with walking fc_rscn_id_list on this vport */ | |
3966 | vport->fc_rscn_flush = 0; | |
3967 | return did; | |
dea3101e JB |
3968 | } |
3969 | ||
e59058c4 | 3970 | /** |
3621a710 | 3971 | * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn |
e59058c4 JS |
3972 | * @vport: pointer to a host virtual N_Port data structure. |
3973 | * | |
3974 | * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the | |
3975 | * state machine for a @vport's nodes that are with pending RSCN (Registration | |
3976 | * State Change Notification). | |
3977 | * | |
3978 | * Return code | |
3979 | * 0 - Successful (currently alway return 0) | |
3980 | **/ | |
dea3101e | 3981 | static int |
2e0fef85 | 3982 | lpfc_rscn_recovery_check(struct lpfc_vport *vport) |
dea3101e | 3983 | { |
685f0bf7 | 3984 | struct lpfc_nodelist *ndlp = NULL; |
dea3101e | 3985 | |
0d2b6b83 | 3986 | /* Move all affected nodes by pending RSCNs to NPR state. */ |
2e0fef85 | 3987 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
e47c9093 | 3988 | if (!NLP_CHK_NODE_ACT(ndlp) || |
0d2b6b83 JS |
3989 | (ndlp->nlp_state == NLP_STE_UNUSED_NODE) || |
3990 | !lpfc_rscn_payload_check(vport, ndlp->nlp_DID)) | |
685f0bf7 | 3991 | continue; |
2e0fef85 | 3992 | lpfc_disc_state_machine(vport, ndlp, NULL, |
0d2b6b83 JS |
3993 | NLP_EVT_DEVICE_RECOVERY); |
3994 | lpfc_cancel_retry_delay_tmo(vport, ndlp); | |
dea3101e | 3995 | } |
c9f8735b | 3996 | return 0; |
dea3101e JB |
3997 | } |
3998 | ||
ddcc50f0 | 3999 | /** |
3621a710 | 4000 | * lpfc_send_rscn_event - Send an RSCN event to management application |
ddcc50f0 JS |
4001 | * @vport: pointer to a host virtual N_Port data structure. |
4002 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4003 | * | |
4004 | * lpfc_send_rscn_event sends an RSCN netlink event to management | |
4005 | * applications. | |
4006 | */ | |
4007 | static void | |
4008 | lpfc_send_rscn_event(struct lpfc_vport *vport, | |
4009 | struct lpfc_iocbq *cmdiocb) | |
4010 | { | |
4011 | struct lpfc_dmabuf *pcmd; | |
4012 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
4013 | uint32_t *payload_ptr; | |
4014 | uint32_t payload_len; | |
4015 | struct lpfc_rscn_event_header *rscn_event_data; | |
4016 | ||
4017 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4018 | payload_ptr = (uint32_t *) pcmd->virt; | |
4019 | payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); | |
4020 | ||
4021 | rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + | |
4022 | payload_len, GFP_KERNEL); | |
4023 | if (!rscn_event_data) { | |
4024 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
4025 | "0147 Failed to allocate memory for RSCN event\n"); | |
4026 | return; | |
4027 | } | |
4028 | rscn_event_data->event_type = FC_REG_RSCN_EVENT; | |
4029 | rscn_event_data->payload_length = payload_len; | |
4030 | memcpy(rscn_event_data->rscn_payload, payload_ptr, | |
4031 | payload_len); | |
4032 | ||
4033 | fc_host_post_vendor_event(shost, | |
4034 | fc_get_event_number(), | |
4035 | sizeof(struct lpfc_els_event_header) + payload_len, | |
4036 | (char *)rscn_event_data, | |
4037 | LPFC_NL_VENDOR_ID); | |
4038 | ||
4039 | kfree(rscn_event_data); | |
4040 | } | |
4041 | ||
e59058c4 | 4042 | /** |
3621a710 | 4043 | * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb |
e59058c4 JS |
4044 | * @vport: pointer to a host virtual N_Port data structure. |
4045 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4046 | * @ndlp: pointer to a node-list data structure. | |
4047 | * | |
4048 | * This routine processes an unsolicited RSCN (Registration State Change | |
4049 | * Notification) IOCB. First, the payload of the unsolicited RSCN is walked | |
4050 | * to invoke fc_host_post_event() routine to the FC transport layer. If the | |
4051 | * discover state machine is about to begin discovery, it just accepts the | |
4052 | * RSCN and the discovery process will satisfy the RSCN. If this RSCN only | |
4053 | * contains N_Port IDs for other vports on this HBA, it just accepts the | |
4054 | * RSCN and ignore processing it. If the state machine is in the recovery | |
4055 | * state, the fc_rscn_id_list of this @vport is walked and the | |
4056 | * lpfc_rscn_recovery_check() routine is invoked to send recovery event for | |
4057 | * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn() | |
4058 | * routine is invoked to handle the RSCN event. | |
4059 | * | |
4060 | * Return code | |
4061 | * 0 - Just sent the acc response | |
4062 | * 1 - Sent the acc response and waited for name server completion | |
4063 | **/ | |
dea3101e | 4064 | static int |
2e0fef85 | 4065 | lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4066 | struct lpfc_nodelist *ndlp) |
dea3101e | 4067 | { |
2e0fef85 JS |
4068 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4069 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4070 | struct lpfc_dmabuf *pcmd; |
92d7f7b0 | 4071 | uint32_t *lp, *datap; |
dea3101e | 4072 | IOCB_t *icmd; |
92d7f7b0 | 4073 | uint32_t payload_len, length, nportid, *cmd; |
7f5f3d0d | 4074 | int rscn_cnt; |
92d7f7b0 | 4075 | int rscn_id = 0, hba_id = 0; |
d2873e4c | 4076 | int i; |
dea3101e JB |
4077 | |
4078 | icmd = &cmdiocb->iocb; | |
4079 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4080 | lp = (uint32_t *) pcmd->virt; | |
4081 | ||
92d7f7b0 JS |
4082 | payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK); |
4083 | payload_len -= sizeof(uint32_t); /* take off word 0 */ | |
dea3101e | 4084 | /* RSCN received */ |
e8b62011 JS |
4085 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4086 | "0214 RSCN received Data: x%x x%x x%x x%x\n", | |
7f5f3d0d JS |
4087 | vport->fc_flag, payload_len, *lp, |
4088 | vport->fc_rscn_id_cnt); | |
ddcc50f0 JS |
4089 | |
4090 | /* Send an RSCN event to the management application */ | |
4091 | lpfc_send_rscn_event(vport, cmdiocb); | |
4092 | ||
d2873e4c | 4093 | for (i = 0; i < payload_len/sizeof(uint32_t); i++) |
2e0fef85 | 4094 | fc_host_post_event(shost, fc_get_event_number(), |
d2873e4c JS |
4095 | FCH_EVT_RSCN, lp[i]); |
4096 | ||
dea3101e JB |
4097 | /* If we are about to begin discovery, just ACC the RSCN. |
4098 | * Discovery processing will satisfy it. | |
4099 | */ | |
2e0fef85 | 4100 | if (vport->port_state <= LPFC_NS_QRY) { |
858c9f6c JS |
4101 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4102 | "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x", | |
4103 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4104 | ||
51ef4c26 | 4105 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
c9f8735b | 4106 | return 0; |
dea3101e JB |
4107 | } |
4108 | ||
92d7f7b0 JS |
4109 | /* If this RSCN just contains NPortIDs for other vports on this HBA, |
4110 | * just ACC and ignore it. | |
4111 | */ | |
4112 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && | |
3de2a653 | 4113 | !(vport->cfg_peer_port_login)) { |
92d7f7b0 JS |
4114 | i = payload_len; |
4115 | datap = lp; | |
4116 | while (i > 0) { | |
4117 | nportid = *datap++; | |
4118 | nportid = ((be32_to_cpu(nportid)) & Mask_DID); | |
4119 | i -= sizeof(uint32_t); | |
4120 | rscn_id++; | |
549e55cd JS |
4121 | if (lpfc_find_vport_by_did(phba, nportid)) |
4122 | hba_id++; | |
92d7f7b0 JS |
4123 | } |
4124 | if (rscn_id == hba_id) { | |
4125 | /* ALL NPortIDs in RSCN are on HBA */ | |
e8b62011 | 4126 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
d7c255b2 | 4127 | "0219 Ignore RSCN " |
e8b62011 JS |
4128 | "Data: x%x x%x x%x x%x\n", |
4129 | vport->fc_flag, payload_len, | |
7f5f3d0d | 4130 | *lp, vport->fc_rscn_id_cnt); |
858c9f6c JS |
4131 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4132 | "RCV RSCN vport: did:x%x/ste:x%x flg:x%x", | |
4133 | ndlp->nlp_DID, vport->port_state, | |
4134 | ndlp->nlp_flag); | |
4135 | ||
92d7f7b0 | 4136 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, |
51ef4c26 | 4137 | ndlp, NULL); |
92d7f7b0 JS |
4138 | return 0; |
4139 | } | |
4140 | } | |
4141 | ||
7f5f3d0d JS |
4142 | spin_lock_irq(shost->host_lock); |
4143 | if (vport->fc_rscn_flush) { | |
4144 | /* Another thread is walking fc_rscn_id_list on this vport */ | |
7f5f3d0d | 4145 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
97957244 | 4146 | spin_unlock_irq(shost->host_lock); |
58da1ffb JS |
4147 | /* Send back ACC */ |
4148 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
7f5f3d0d JS |
4149 | return 0; |
4150 | } | |
4151 | /* Indicate we are walking fc_rscn_id_list on this vport */ | |
4152 | vport->fc_rscn_flush = 1; | |
4153 | spin_unlock_irq(shost->host_lock); | |
af901ca1 | 4154 | /* Get the array count after successfully have the token */ |
7f5f3d0d | 4155 | rscn_cnt = vport->fc_rscn_id_cnt; |
dea3101e JB |
4156 | /* If we are already processing an RSCN, save the received |
4157 | * RSCN payload buffer, cmdiocb->context2 to process later. | |
4158 | */ | |
2e0fef85 | 4159 | if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) { |
858c9f6c JS |
4160 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4161 | "RCV RSCN defer: did:x%x/ste:x%x flg:x%x", | |
4162 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4163 | ||
09372820 | 4164 | spin_lock_irq(shost->host_lock); |
92d7f7b0 JS |
4165 | vport->fc_flag |= FC_RSCN_DEFERRED; |
4166 | if ((rscn_cnt < FC_MAX_HOLD_RSCN) && | |
2e0fef85 | 4167 | !(vport->fc_flag & FC_RSCN_DISCOVERY)) { |
2e0fef85 JS |
4168 | vport->fc_flag |= FC_RSCN_MODE; |
4169 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
4170 | if (rscn_cnt) { |
4171 | cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt; | |
4172 | length = be32_to_cpu(*cmd & ~ELS_CMD_MASK); | |
4173 | } | |
4174 | if ((rscn_cnt) && | |
4175 | (payload_len + length <= LPFC_BPL_SIZE)) { | |
4176 | *cmd &= ELS_CMD_MASK; | |
7f5f3d0d | 4177 | *cmd |= cpu_to_be32(payload_len + length); |
92d7f7b0 JS |
4178 | memcpy(((uint8_t *)cmd) + length, lp, |
4179 | payload_len); | |
4180 | } else { | |
4181 | vport->fc_rscn_id_list[rscn_cnt] = pcmd; | |
4182 | vport->fc_rscn_id_cnt++; | |
4183 | /* If we zero, cmdiocb->context2, the calling | |
4184 | * routine will not try to free it. | |
4185 | */ | |
4186 | cmdiocb->context2 = NULL; | |
4187 | } | |
dea3101e | 4188 | /* Deferred RSCN */ |
e8b62011 JS |
4189 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4190 | "0235 Deferred RSCN " | |
4191 | "Data: x%x x%x x%x\n", | |
4192 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4193 | vport->port_state); | |
dea3101e | 4194 | } else { |
2e0fef85 JS |
4195 | vport->fc_flag |= FC_RSCN_DISCOVERY; |
4196 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4197 | /* ReDiscovery RSCN */ |
e8b62011 JS |
4198 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4199 | "0234 ReDiscovery RSCN " | |
4200 | "Data: x%x x%x x%x\n", | |
4201 | vport->fc_rscn_id_cnt, vport->fc_flag, | |
4202 | vport->port_state); | |
dea3101e | 4203 | } |
7f5f3d0d JS |
4204 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4205 | vport->fc_rscn_flush = 0; | |
dea3101e | 4206 | /* Send back ACC */ |
51ef4c26 | 4207 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4208 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4209 | lpfc_rscn_recovery_check(vport); |
09372820 | 4210 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 4211 | vport->fc_flag &= ~FC_RSCN_DEFERRED; |
09372820 | 4212 | spin_unlock_irq(shost->host_lock); |
c9f8735b | 4213 | return 0; |
dea3101e | 4214 | } |
858c9f6c JS |
4215 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
4216 | "RCV RSCN: did:x%x/ste:x%x flg:x%x", | |
4217 | ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag); | |
4218 | ||
2e0fef85 JS |
4219 | spin_lock_irq(shost->host_lock); |
4220 | vport->fc_flag |= FC_RSCN_MODE; | |
4221 | spin_unlock_irq(shost->host_lock); | |
4222 | vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd; | |
7f5f3d0d JS |
4223 | /* Indicate we are done walking fc_rscn_id_list on this vport */ |
4224 | vport->fc_rscn_flush = 0; | |
dea3101e JB |
4225 | /* |
4226 | * If we zero, cmdiocb->context2, the calling routine will | |
4227 | * not try to free it. | |
4228 | */ | |
4229 | cmdiocb->context2 = NULL; | |
2e0fef85 | 4230 | lpfc_set_disctmo(vport); |
dea3101e | 4231 | /* Send back ACC */ |
51ef4c26 | 4232 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e | 4233 | /* send RECOVERY event for ALL nodes that match RSCN payload */ |
2e0fef85 | 4234 | lpfc_rscn_recovery_check(vport); |
2e0fef85 | 4235 | return lpfc_els_handle_rscn(vport); |
dea3101e JB |
4236 | } |
4237 | ||
e59058c4 | 4238 | /** |
3621a710 | 4239 | * lpfc_els_handle_rscn - Handle rscn for a vport |
e59058c4 JS |
4240 | * @vport: pointer to a host virtual N_Port data structure. |
4241 | * | |
4242 | * This routine handles the Registration State Configuration Notification | |
4243 | * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall | |
4244 | * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise, | |
4245 | * if the ndlp to NameServer exists, a Common Transport (CT) command to the | |
4246 | * NameServer shall be issued. If CT command to the NameServer fails to be | |
4247 | * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any | |
4248 | * RSCN activities with the @vport. | |
4249 | * | |
4250 | * Return code | |
4251 | * 0 - Cleaned up rscn on the @vport | |
4252 | * 1 - Wait for plogi to name server before proceed | |
4253 | **/ | |
dea3101e | 4254 | int |
2e0fef85 | 4255 | lpfc_els_handle_rscn(struct lpfc_vport *vport) |
dea3101e JB |
4256 | { |
4257 | struct lpfc_nodelist *ndlp; | |
2e0fef85 | 4258 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4259 | |
92d7f7b0 JS |
4260 | /* Ignore RSCN if the port is being torn down. */ |
4261 | if (vport->load_flag & FC_UNLOADING) { | |
4262 | lpfc_els_flush_rscn(vport); | |
4263 | return 0; | |
4264 | } | |
4265 | ||
dea3101e | 4266 | /* Start timer for RSCN processing */ |
2e0fef85 | 4267 | lpfc_set_disctmo(vport); |
dea3101e JB |
4268 | |
4269 | /* RSCN processed */ | |
e8b62011 JS |
4270 | lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, |
4271 | "0215 RSCN processed Data: x%x x%x x%x x%x\n", | |
4272 | vport->fc_flag, 0, vport->fc_rscn_id_cnt, | |
4273 | vport->port_state); | |
dea3101e JB |
4274 | |
4275 | /* To process RSCN, first compare RSCN data with NameServer */ | |
2e0fef85 | 4276 | vport->fc_ns_retry = 0; |
0ff10d46 JS |
4277 | vport->num_disc_nodes = 0; |
4278 | ||
2e0fef85 | 4279 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 JS |
4280 | if (ndlp && NLP_CHK_NODE_ACT(ndlp) |
4281 | && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { | |
dea3101e | 4282 | /* Good ndlp, issue CT Request to NameServer */ |
92d7f7b0 | 4283 | if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0) |
dea3101e JB |
4284 | /* Wait for NameServer query cmpl before we can |
4285 | continue */ | |
c9f8735b | 4286 | return 1; |
dea3101e JB |
4287 | } else { |
4288 | /* If login to NameServer does not exist, issue one */ | |
4289 | /* Good status, issue PLOGI to NameServer */ | |
2e0fef85 | 4290 | ndlp = lpfc_findnode_did(vport, NameServer_DID); |
e47c9093 | 4291 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
dea3101e JB |
4292 | /* Wait for NameServer login cmpl before we can |
4293 | continue */ | |
c9f8735b | 4294 | return 1; |
2e0fef85 | 4295 | |
e47c9093 JS |
4296 | if (ndlp) { |
4297 | ndlp = lpfc_enable_node(vport, ndlp, | |
4298 | NLP_STE_PLOGI_ISSUE); | |
4299 | if (!ndlp) { | |
4300 | lpfc_els_flush_rscn(vport); | |
4301 | return 0; | |
4302 | } | |
4303 | ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE; | |
dea3101e | 4304 | } else { |
e47c9093 JS |
4305 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
4306 | if (!ndlp) { | |
4307 | lpfc_els_flush_rscn(vport); | |
4308 | return 0; | |
4309 | } | |
2e0fef85 | 4310 | lpfc_nlp_init(vport, ndlp, NameServer_DID); |
5024ab17 | 4311 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4312 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); |
dea3101e | 4313 | } |
e47c9093 JS |
4314 | ndlp->nlp_type |= NLP_FABRIC; |
4315 | lpfc_issue_els_plogi(vport, NameServer_DID, 0); | |
4316 | /* Wait for NameServer login cmpl before we can | |
4317 | * continue | |
4318 | */ | |
4319 | return 1; | |
dea3101e JB |
4320 | } |
4321 | ||
2e0fef85 | 4322 | lpfc_els_flush_rscn(vport); |
c9f8735b | 4323 | return 0; |
dea3101e JB |
4324 | } |
4325 | ||
e59058c4 | 4326 | /** |
3621a710 | 4327 | * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb |
e59058c4 JS |
4328 | * @vport: pointer to a host virtual N_Port data structure. |
4329 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4330 | * @ndlp: pointer to a node-list data structure. | |
4331 | * | |
4332 | * This routine processes Fabric Login (FLOGI) IOCB received as an ELS | |
4333 | * unsolicited event. An unsolicited FLOGI can be received in a point-to- | |
4334 | * point topology. As an unsolicited FLOGI should not be received in a loop | |
4335 | * mode, any unsolicited FLOGI received in loop mode shall be ignored. The | |
4336 | * lpfc_check_sparm() routine is invoked to check the parameters in the | |
4337 | * unsolicited FLOGI. If parameters validation failed, the routine | |
4338 | * lpfc_els_rsp_reject() shall be called with reject reason code set to | |
4339 | * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the | |
4340 | * FLOGI shall be compared with the Port WWN of the @vport to determine who | |
4341 | * will initiate PLOGI. The higher lexicographical value party shall has | |
4342 | * higher priority (as the winning port) and will initiate PLOGI and | |
4343 | * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result | |
4344 | * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI | |
4345 | * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI. | |
4346 | * | |
4347 | * Return code | |
4348 | * 0 - Successfully processed the unsolicited flogi | |
4349 | * 1 - Failed to process the unsolicited flogi | |
4350 | **/ | |
dea3101e | 4351 | static int |
2e0fef85 | 4352 | lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
51ef4c26 | 4353 | struct lpfc_nodelist *ndlp) |
dea3101e | 4354 | { |
2e0fef85 JS |
4355 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
4356 | struct lpfc_hba *phba = vport->phba; | |
dea3101e JB |
4357 | struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4358 | uint32_t *lp = (uint32_t *) pcmd->virt; | |
4359 | IOCB_t *icmd = &cmdiocb->iocb; | |
4360 | struct serv_parm *sp; | |
4361 | LPFC_MBOXQ_t *mbox; | |
4362 | struct ls_rjt stat; | |
4363 | uint32_t cmd, did; | |
4364 | int rc; | |
4365 | ||
4366 | cmd = *lp++; | |
4367 | sp = (struct serv_parm *) lp; | |
4368 | ||
4369 | /* FLOGI received */ | |
4370 | ||
2e0fef85 | 4371 | lpfc_set_disctmo(vport); |
dea3101e JB |
4372 | |
4373 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
4374 | /* We should never receive a FLOGI in loop mode, ignore it */ | |
4375 | did = icmd->un.elsreq64.remoteID; | |
4376 | ||
4377 | /* An FLOGI ELS command <elsCmd> was received from DID <did> in | |
4378 | Loop Mode */ | |
e8b62011 JS |
4379 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
4380 | "0113 An FLOGI ELS command x%x was " | |
4381 | "received from DID x%x in Loop Mode\n", | |
4382 | cmd, did); | |
c9f8735b | 4383 | return 1; |
dea3101e JB |
4384 | } |
4385 | ||
4386 | did = Fabric_DID; | |
4387 | ||
2e0fef85 | 4388 | if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3))) { |
dea3101e JB |
4389 | /* For a FLOGI we accept, then if our portname is greater |
4390 | * then the remote portname we initiate Nport login. | |
4391 | */ | |
4392 | ||
2e0fef85 | 4393 | rc = memcmp(&vport->fc_portname, &sp->portName, |
92d7f7b0 | 4394 | sizeof(struct lpfc_name)); |
dea3101e JB |
4395 | |
4396 | if (!rc) { | |
2e0fef85 JS |
4397 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
4398 | if (!mbox) | |
c9f8735b | 4399 | return 1; |
2e0fef85 | 4400 | |
dea3101e JB |
4401 | lpfc_linkdown(phba); |
4402 | lpfc_init_link(phba, mbox, | |
4403 | phba->cfg_topology, | |
4404 | phba->cfg_link_speed); | |
04c68496 | 4405 | mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0; |
dea3101e | 4406 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
ed957684 | 4407 | mbox->vport = vport; |
0b727fea | 4408 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); |
5b8bd0c9 | 4409 | lpfc_set_loopback_flag(phba); |
dea3101e | 4410 | if (rc == MBX_NOT_FINISHED) { |
329f9bc7 | 4411 | mempool_free(mbox, phba->mbox_mem_pool); |
dea3101e | 4412 | } |
c9f8735b | 4413 | return 1; |
2fe165b6 | 4414 | } else if (rc > 0) { /* greater than */ |
2e0fef85 JS |
4415 | spin_lock_irq(shost->host_lock); |
4416 | vport->fc_flag |= FC_PT2PT_PLOGI; | |
4417 | spin_unlock_irq(shost->host_lock); | |
dea3101e | 4418 | } |
2e0fef85 JS |
4419 | spin_lock_irq(shost->host_lock); |
4420 | vport->fc_flag |= FC_PT2PT; | |
4421 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
4422 | spin_unlock_irq(shost->host_lock); | |
dea3101e JB |
4423 | } else { |
4424 | /* Reject this request because invalid parameters */ | |
4425 | stat.un.b.lsRjtRsvd0 = 0; | |
4426 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4427 | stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS; | |
4428 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4429 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4430 | NULL); | |
c9f8735b | 4431 | return 1; |
dea3101e JB |
4432 | } |
4433 | ||
4434 | /* Send back ACC */ | |
51ef4c26 | 4435 | lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL); |
dea3101e | 4436 | |
c9f8735b | 4437 | return 0; |
dea3101e JB |
4438 | } |
4439 | ||
e59058c4 | 4440 | /** |
3621a710 | 4441 | * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb |
e59058c4 JS |
4442 | * @vport: pointer to a host virtual N_Port data structure. |
4443 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4444 | * @ndlp: pointer to a node-list data structure. | |
4445 | * | |
4446 | * This routine processes Request Node Identification Data (RNID) IOCB | |
4447 | * received as an ELS unsolicited event. Only when the RNID specified format | |
4448 | * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data) | |
4449 | * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to | |
4450 | * Accept (ACC) the RNID ELS command. All the other RNID formats are | |
4451 | * rejected by invoking the lpfc_els_rsp_reject() routine. | |
4452 | * | |
4453 | * Return code | |
4454 | * 0 - Successfully processed rnid iocb (currently always return 0) | |
4455 | **/ | |
dea3101e | 4456 | static int |
2e0fef85 JS |
4457 | lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4458 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4459 | { |
4460 | struct lpfc_dmabuf *pcmd; | |
4461 | uint32_t *lp; | |
4462 | IOCB_t *icmd; | |
4463 | RNID *rn; | |
4464 | struct ls_rjt stat; | |
4465 | uint32_t cmd, did; | |
4466 | ||
4467 | icmd = &cmdiocb->iocb; | |
4468 | did = icmd->un.elsreq64.remoteID; | |
4469 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4470 | lp = (uint32_t *) pcmd->virt; | |
4471 | ||
4472 | cmd = *lp++; | |
4473 | rn = (RNID *) lp; | |
4474 | ||
4475 | /* RNID received */ | |
4476 | ||
4477 | switch (rn->Format) { | |
4478 | case 0: | |
4479 | case RNID_TOPOLOGY_DISC: | |
4480 | /* Send back ACC */ | |
2e0fef85 | 4481 | lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp); |
dea3101e JB |
4482 | break; |
4483 | default: | |
4484 | /* Reject this request because format not supported */ | |
4485 | stat.un.b.lsRjtRsvd0 = 0; | |
4486 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4487 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4488 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4489 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4490 | NULL); | |
dea3101e | 4491 | } |
c9f8735b | 4492 | return 0; |
dea3101e JB |
4493 | } |
4494 | ||
e59058c4 | 4495 | /** |
3621a710 | 4496 | * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb |
e59058c4 JS |
4497 | * @vport: pointer to a host virtual N_Port data structure. |
4498 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4499 | * @ndlp: pointer to a node-list data structure. | |
4500 | * | |
4501 | * This routine processes a Link Incident Report Registration(LIRR) IOCB | |
4502 | * received as an ELS unsolicited event. Currently, this function just invokes | |
4503 | * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally. | |
4504 | * | |
4505 | * Return code | |
4506 | * 0 - Successfully processed lirr iocb (currently always return 0) | |
4507 | **/ | |
dea3101e | 4508 | static int |
2e0fef85 JS |
4509 | lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4510 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4511 | { |
4512 | struct ls_rjt stat; | |
4513 | ||
4514 | /* For now, unconditionally reject this command */ | |
4515 | stat.un.b.lsRjtRsvd0 = 0; | |
4516 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4517 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4518 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4519 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4520 | return 0; |
4521 | } | |
4522 | ||
5ffc266e JS |
4523 | /** |
4524 | * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb | |
4525 | * @vport: pointer to a host virtual N_Port data structure. | |
4526 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4527 | * @ndlp: pointer to a node-list data structure. | |
4528 | * | |
4529 | * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB | |
4530 | * received as an ELS unsolicited event. A request to RRQ shall only | |
4531 | * be accepted if the Originator Nx_Port N_Port_ID or the Responder | |
4532 | * Nx_Port N_Port_ID of the target Exchange is the same as the | |
4533 | * N_Port_ID of the Nx_Port that makes the request. If the RRQ is | |
4534 | * not accepted, an LS_RJT with reason code "Unable to perform | |
4535 | * command request" and reason code explanation "Invalid Originator | |
4536 | * S_ID" shall be returned. For now, we just unconditionally accept | |
4537 | * RRQ from the target. | |
4538 | **/ | |
4539 | static void | |
4540 | lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, | |
4541 | struct lpfc_nodelist *ndlp) | |
4542 | { | |
4543 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); | |
4544 | } | |
4545 | ||
e59058c4 | 4546 | /** |
3621a710 | 4547 | * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd |
e59058c4 JS |
4548 | * @phba: pointer to lpfc hba data structure. |
4549 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
4550 | * | |
4551 | * This routine is the completion callback function for the MBX_READ_LNK_STAT | |
4552 | * mailbox command. This callback function is to actually send the Accept | |
4553 | * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It | |
4554 | * collects the link statistics from the completion of the MBX_READ_LNK_STAT | |
4555 | * mailbox command, constructs the RPS response with the link statistics | |
4556 | * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC | |
4557 | * response to the RPS. | |
4558 | * | |
4559 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4560 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4561 | * will be stored into the context1 field of the IOCB for the completion | |
4562 | * callback function to the RPS Accept Response ELS IOCB command. | |
4563 | * | |
4564 | **/ | |
082c0266 | 4565 | static void |
329f9bc7 | 4566 | lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
7bb3b137 | 4567 | { |
7bb3b137 JW |
4568 | MAILBOX_t *mb; |
4569 | IOCB_t *icmd; | |
4570 | RPS_RSP *rps_rsp; | |
4571 | uint8_t *pcmd; | |
4572 | struct lpfc_iocbq *elsiocb; | |
4573 | struct lpfc_nodelist *ndlp; | |
4574 | uint16_t xri, status; | |
4575 | uint32_t cmdsize; | |
4576 | ||
04c68496 | 4577 | mb = &pmb->u.mb; |
7bb3b137 JW |
4578 | |
4579 | ndlp = (struct lpfc_nodelist *) pmb->context2; | |
4580 | xri = (uint16_t) ((unsigned long)(pmb->context1)); | |
041976fb RD |
4581 | pmb->context1 = NULL; |
4582 | pmb->context2 = NULL; | |
7bb3b137 JW |
4583 | |
4584 | if (mb->mbxStatus) { | |
329f9bc7 | 4585 | mempool_free(pmb, phba->mbox_mem_pool); |
7bb3b137 JW |
4586 | return; |
4587 | } | |
4588 | ||
4589 | cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t); | |
329f9bc7 | 4590 | mempool_free(pmb, phba->mbox_mem_pool); |
2e0fef85 JS |
4591 | elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize, |
4592 | lpfc_max_els_tries, ndlp, | |
4593 | ndlp->nlp_DID, ELS_CMD_ACC); | |
fa4066b6 JS |
4594 | |
4595 | /* Decrement the ndlp reference count from previous mbox command */ | |
329f9bc7 | 4596 | lpfc_nlp_put(ndlp); |
fa4066b6 | 4597 | |
c9f8735b | 4598 | if (!elsiocb) |
7bb3b137 | 4599 | return; |
7bb3b137 JW |
4600 | |
4601 | icmd = &elsiocb->iocb; | |
4602 | icmd->ulpContext = xri; | |
4603 | ||
4604 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4605 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4606 | pcmd += sizeof(uint32_t); /* Skip past command */ |
7bb3b137 JW |
4607 | rps_rsp = (RPS_RSP *)pcmd; |
4608 | ||
4609 | if (phba->fc_topology != TOPOLOGY_LOOP) | |
4610 | status = 0x10; | |
4611 | else | |
4612 | status = 0x8; | |
2e0fef85 | 4613 | if (phba->pport->fc_flag & FC_FABRIC) |
7bb3b137 JW |
4614 | status |= 0x4; |
4615 | ||
4616 | rps_rsp->rsvd1 = 0; | |
09372820 JS |
4617 | rps_rsp->portStatus = cpu_to_be16(status); |
4618 | rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt); | |
4619 | rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt); | |
4620 | rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt); | |
4621 | rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt); | |
4622 | rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord); | |
4623 | rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt); | |
7bb3b137 | 4624 | /* Xmit ELS RPS ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4625 | lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS, |
4626 | "0118 Xmit ELS RPS ACC response tag x%x xri x%x, " | |
4627 | "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n", | |
4628 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4629 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4630 | ndlp->nlp_rpi); | |
858c9f6c | 4631 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4632 | phba->fc_stat.elsXmitACC++; |
3772a991 | 4633 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR) |
7bb3b137 | 4634 | lpfc_els_free_iocb(phba, elsiocb); |
7bb3b137 JW |
4635 | return; |
4636 | } | |
4637 | ||
e59058c4 | 4638 | /** |
3621a710 | 4639 | * lpfc_els_rcv_rps - Process an unsolicited rps 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 Status (RPS) IOCB received as an | |
4645 | * ELS unsolicited event. It first checks the remote port state. If the | |
4646 | * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE | |
4647 | * state, it invokes the lpfc_els_rsp_reject() routine to send the reject | |
4648 | * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command | |
4649 | * for reading the HBA link statistics. It is for the callback function, | |
4650 | * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command | |
4651 | * to actually sending out RPS Accept (ACC) response. | |
4652 | * | |
4653 | * Return codes | |
4654 | * 0 - Successfully processed rps iocb (currently always return 0) | |
4655 | **/ | |
7bb3b137 | 4656 | static int |
2e0fef85 JS |
4657 | lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4658 | struct lpfc_nodelist *ndlp) | |
dea3101e | 4659 | { |
2e0fef85 | 4660 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4661 | uint32_t *lp; |
7bb3b137 JW |
4662 | uint8_t flag; |
4663 | LPFC_MBOXQ_t *mbox; | |
4664 | struct lpfc_dmabuf *pcmd; | |
4665 | RPS *rps; | |
4666 | struct ls_rjt stat; | |
4667 | ||
2fe165b6 | 4668 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
90160e01 JS |
4669 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) |
4670 | /* reject the unsolicited RPS request and done with it */ | |
4671 | goto reject_out; | |
7bb3b137 JW |
4672 | |
4673 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4674 | lp = (uint32_t *) pcmd->virt; | |
4675 | flag = (be32_to_cpu(*lp++) & 0xf); | |
4676 | rps = (RPS *) lp; | |
4677 | ||
4678 | if ((flag == 0) || | |
4679 | ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) || | |
2e0fef85 | 4680 | ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname, |
92d7f7b0 | 4681 | sizeof(struct lpfc_name)) == 0))) { |
2e0fef85 | 4682 | |
92d7f7b0 JS |
4683 | printk("Fix me....\n"); |
4684 | dump_stack(); | |
2e0fef85 JS |
4685 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC); |
4686 | if (mbox) { | |
7bb3b137 JW |
4687 | lpfc_read_lnk_stat(phba, mbox); |
4688 | mbox->context1 = | |
92d7f7b0 | 4689 | (void *)((unsigned long) cmdiocb->iocb.ulpContext); |
329f9bc7 | 4690 | mbox->context2 = lpfc_nlp_get(ndlp); |
92d7f7b0 | 4691 | mbox->vport = vport; |
7bb3b137 | 4692 | mbox->mbox_cmpl = lpfc_els_rsp_rps_acc; |
fa4066b6 | 4693 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
0b727fea | 4694 | != MBX_NOT_FINISHED) |
7bb3b137 JW |
4695 | /* Mbox completion will send ELS Response */ |
4696 | return 0; | |
fa4066b6 JS |
4697 | /* Decrement reference count used for the failed mbox |
4698 | * command. | |
4699 | */ | |
329f9bc7 | 4700 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
4701 | mempool_free(mbox, phba->mbox_mem_pool); |
4702 | } | |
4703 | } | |
90160e01 JS |
4704 | |
4705 | reject_out: | |
4706 | /* issue rejection response */ | |
7bb3b137 JW |
4707 | stat.un.b.lsRjtRsvd0 = 0; |
4708 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4709 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4710 | stat.un.b.vendorUnique = 0; | |
858c9f6c | 4711 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL); |
7bb3b137 JW |
4712 | return 0; |
4713 | } | |
4714 | ||
e59058c4 | 4715 | /** |
3621a710 | 4716 | * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command |
e59058c4 JS |
4717 | * @vport: pointer to a host virtual N_Port data structure. |
4718 | * @cmdsize: size of the ELS command. | |
4719 | * @oldiocb: pointer to the original lpfc command iocb data structure. | |
4720 | * @ndlp: pointer to a node-list data structure. | |
4721 | * | |
4722 | * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command. | |
4723 | * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL. | |
4724 | * | |
4725 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
4726 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
4727 | * will be stored into the context1 field of the IOCB for the completion | |
4728 | * callback function to the RPL Accept Response ELS command. | |
4729 | * | |
4730 | * Return code | |
4731 | * 0 - Successfully issued ACC RPL ELS command | |
4732 | * 1 - Failed to issue ACC RPL ELS command | |
4733 | **/ | |
082c0266 | 4734 | static int |
2e0fef85 JS |
4735 | lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, |
4736 | struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) | |
7bb3b137 | 4737 | { |
2e0fef85 JS |
4738 | struct lpfc_hba *phba = vport->phba; |
4739 | IOCB_t *icmd, *oldcmd; | |
7bb3b137 JW |
4740 | RPL_RSP rpl_rsp; |
4741 | struct lpfc_iocbq *elsiocb; | |
7bb3b137 | 4742 | uint8_t *pcmd; |
dea3101e | 4743 | |
2e0fef85 JS |
4744 | elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp, |
4745 | ndlp->nlp_DID, ELS_CMD_ACC); | |
7bb3b137 | 4746 | |
488d1469 | 4747 | if (!elsiocb) |
7bb3b137 | 4748 | return 1; |
488d1469 | 4749 | |
7bb3b137 JW |
4750 | icmd = &elsiocb->iocb; |
4751 | oldcmd = &oldiocb->iocb; | |
4752 | icmd->ulpContext = oldcmd->ulpContext; /* Xri */ | |
4753 | ||
4754 | pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
4755 | *((uint32_t *) (pcmd)) = ELS_CMD_ACC; | |
92d7f7b0 | 4756 | pcmd += sizeof(uint16_t); |
7bb3b137 JW |
4757 | *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize); |
4758 | pcmd += sizeof(uint16_t); | |
4759 | ||
4760 | /* Setup the RPL ACC payload */ | |
4761 | rpl_rsp.listLen = be32_to_cpu(1); | |
4762 | rpl_rsp.index = 0; | |
4763 | rpl_rsp.port_num_blk.portNum = 0; | |
2e0fef85 JS |
4764 | rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID); |
4765 | memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname, | |
7bb3b137 | 4766 | sizeof(struct lpfc_name)); |
7bb3b137 | 4767 | memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t)); |
7bb3b137 | 4768 | /* Xmit ELS RPL ACC response tag <ulpIoTag> */ |
e8b62011 JS |
4769 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4770 | "0120 Xmit ELS RPL ACC response tag x%x " | |
4771 | "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, " | |
4772 | "rpi x%x\n", | |
4773 | elsiocb->iotag, elsiocb->iocb.ulpContext, | |
4774 | ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, | |
4775 | ndlp->nlp_rpi); | |
858c9f6c | 4776 | elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; |
7bb3b137 | 4777 | phba->fc_stat.elsXmitACC++; |
3772a991 JS |
4778 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
4779 | IOCB_ERROR) { | |
7bb3b137 JW |
4780 | lpfc_els_free_iocb(phba, elsiocb); |
4781 | return 1; | |
4782 | } | |
4783 | return 0; | |
4784 | } | |
4785 | ||
e59058c4 | 4786 | /** |
3621a710 | 4787 | * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb |
e59058c4 JS |
4788 | * @vport: pointer to a host virtual N_Port data structure. |
4789 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4790 | * @ndlp: pointer to a node-list data structure. | |
4791 | * | |
4792 | * This routine processes Read Port List (RPL) IOCB received as an ELS | |
4793 | * unsolicited event. It first checks the remote port state. If the remote | |
4794 | * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it | |
4795 | * invokes the lpfc_els_rsp_reject() routine to send reject response. | |
4796 | * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine | |
4797 | * to accept the RPL. | |
4798 | * | |
4799 | * Return code | |
4800 | * 0 - Successfully processed rpl iocb (currently always return 0) | |
4801 | **/ | |
7bb3b137 | 4802 | static int |
2e0fef85 JS |
4803 | lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4804 | struct lpfc_nodelist *ndlp) | |
7bb3b137 JW |
4805 | { |
4806 | struct lpfc_dmabuf *pcmd; | |
4807 | uint32_t *lp; | |
4808 | uint32_t maxsize; | |
4809 | uint16_t cmdsize; | |
4810 | RPL *rpl; | |
4811 | struct ls_rjt stat; | |
4812 | ||
2fe165b6 JW |
4813 | if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && |
4814 | (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { | |
90160e01 | 4815 | /* issue rejection response */ |
7bb3b137 JW |
4816 | stat.un.b.lsRjtRsvd0 = 0; |
4817 | stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; | |
4818 | stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; | |
4819 | stat.un.b.vendorUnique = 0; | |
858c9f6c JS |
4820 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, |
4821 | NULL); | |
90160e01 JS |
4822 | /* rejected the unsolicited RPL request and done with it */ |
4823 | return 0; | |
7bb3b137 JW |
4824 | } |
4825 | ||
dea3101e JB |
4826 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; |
4827 | lp = (uint32_t *) pcmd->virt; | |
7bb3b137 | 4828 | rpl = (RPL *) (lp + 1); |
dea3101e | 4829 | |
7bb3b137 | 4830 | maxsize = be32_to_cpu(rpl->maxsize); |
dea3101e | 4831 | |
7bb3b137 JW |
4832 | /* We support only one port */ |
4833 | if ((rpl->index == 0) && | |
4834 | ((maxsize == 0) || | |
4835 | ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) { | |
4836 | cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP); | |
2fe165b6 | 4837 | } else { |
7bb3b137 JW |
4838 | cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t); |
4839 | } | |
2e0fef85 | 4840 | lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp); |
dea3101e JB |
4841 | |
4842 | return 0; | |
4843 | } | |
4844 | ||
e59058c4 | 4845 | /** |
3621a710 | 4846 | * lpfc_els_rcv_farp - Process an unsolicited farp request els command |
e59058c4 JS |
4847 | * @vport: pointer to a virtual N_Port data structure. |
4848 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4849 | * @ndlp: pointer to a node-list data structure. | |
4850 | * | |
4851 | * This routine processes Fibre Channel Address Resolution Protocol | |
4852 | * (FARP) Request IOCB received as an ELS unsolicited event. Currently, | |
4853 | * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such, | |
4854 | * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the | |
4855 | * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the | |
4856 | * remote PortName is compared against the FC PortName stored in the @vport | |
4857 | * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is | |
4858 | * compared against the FC NodeName stored in the @vport data structure. | |
4859 | * If any of these matches and the FARP_REQUEST_FARPR flag is set in the | |
4860 | * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is | |
4861 | * invoked to send out FARP Response to the remote node. Before sending the | |
4862 | * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP | |
4863 | * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi() | |
4864 | * routine is invoked to log into the remote port first. | |
4865 | * | |
4866 | * Return code | |
4867 | * 0 - Either the FARP Match Mode not supported or successfully processed | |
4868 | **/ | |
dea3101e | 4869 | static int |
2e0fef85 JS |
4870 | lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4871 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4872 | { |
4873 | struct lpfc_dmabuf *pcmd; | |
4874 | uint32_t *lp; | |
4875 | IOCB_t *icmd; | |
4876 | FARP *fp; | |
4877 | uint32_t cmd, cnt, did; | |
4878 | ||
4879 | icmd = &cmdiocb->iocb; | |
4880 | did = icmd->un.elsreq64.remoteID; | |
4881 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4882 | lp = (uint32_t *) pcmd->virt; | |
4883 | ||
4884 | cmd = *lp++; | |
4885 | fp = (FARP *) lp; | |
dea3101e | 4886 | /* FARP-REQ received from DID <did> */ |
e8b62011 JS |
4887 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4888 | "0601 FARP-REQ received from DID x%x\n", did); | |
dea3101e JB |
4889 | /* We will only support match on WWPN or WWNN */ |
4890 | if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) { | |
c9f8735b | 4891 | return 0; |
dea3101e JB |
4892 | } |
4893 | ||
4894 | cnt = 0; | |
4895 | /* If this FARP command is searching for my portname */ | |
4896 | if (fp->Mflags & FARP_MATCH_PORT) { | |
2e0fef85 | 4897 | if (memcmp(&fp->RportName, &vport->fc_portname, |
92d7f7b0 | 4898 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4899 | cnt = 1; |
4900 | } | |
4901 | ||
4902 | /* If this FARP command is searching for my nodename */ | |
4903 | if (fp->Mflags & FARP_MATCH_NODE) { | |
2e0fef85 | 4904 | if (memcmp(&fp->RnodeName, &vport->fc_nodename, |
92d7f7b0 | 4905 | sizeof(struct lpfc_name)) == 0) |
dea3101e JB |
4906 | cnt = 1; |
4907 | } | |
4908 | ||
4909 | if (cnt) { | |
4910 | if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) || | |
4911 | (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) { | |
4912 | /* Log back into the node before sending the FARP. */ | |
4913 | if (fp->Rflags & FARP_REQUEST_PLOGI) { | |
5024ab17 | 4914 | ndlp->nlp_prev_state = ndlp->nlp_state; |
2e0fef85 | 4915 | lpfc_nlp_set_state(vport, ndlp, |
de0c5b32 | 4916 | NLP_STE_PLOGI_ISSUE); |
2e0fef85 | 4917 | lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0); |
dea3101e JB |
4918 | } |
4919 | ||
4920 | /* Send a FARP response to that node */ | |
2e0fef85 JS |
4921 | if (fp->Rflags & FARP_REQUEST_FARPR) |
4922 | lpfc_issue_els_farpr(vport, did, 0); | |
dea3101e JB |
4923 | } |
4924 | } | |
c9f8735b | 4925 | return 0; |
dea3101e JB |
4926 | } |
4927 | ||
e59058c4 | 4928 | /** |
3621a710 | 4929 | * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb |
e59058c4 JS |
4930 | * @vport: pointer to a host virtual N_Port data structure. |
4931 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4932 | * @ndlp: pointer to a node-list data structure. | |
4933 | * | |
4934 | * This routine processes Fibre Channel Address Resolution Protocol | |
4935 | * Response (FARPR) IOCB received as an ELS unsolicited event. It simply | |
4936 | * invokes the lpfc_els_rsp_acc() routine to the remote node to accept | |
4937 | * the FARP response request. | |
4938 | * | |
4939 | * Return code | |
4940 | * 0 - Successfully processed FARPR IOCB (currently always return 0) | |
4941 | **/ | |
dea3101e | 4942 | static int |
2e0fef85 JS |
4943 | lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4944 | struct lpfc_nodelist *ndlp) | |
dea3101e JB |
4945 | { |
4946 | struct lpfc_dmabuf *pcmd; | |
4947 | uint32_t *lp; | |
4948 | IOCB_t *icmd; | |
4949 | uint32_t cmd, did; | |
4950 | ||
4951 | icmd = &cmdiocb->iocb; | |
4952 | did = icmd->un.elsreq64.remoteID; | |
4953 | pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; | |
4954 | lp = (uint32_t *) pcmd->virt; | |
4955 | ||
4956 | cmd = *lp++; | |
4957 | /* FARP-RSP received from DID <did> */ | |
e8b62011 JS |
4958 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
4959 | "0600 FARP-RSP received from DID x%x\n", did); | |
dea3101e | 4960 | /* ACCEPT the Farp resp request */ |
51ef4c26 | 4961 | lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL); |
dea3101e JB |
4962 | |
4963 | return 0; | |
4964 | } | |
4965 | ||
e59058c4 | 4966 | /** |
3621a710 | 4967 | * lpfc_els_rcv_fan - Process an unsolicited fan iocb command |
e59058c4 JS |
4968 | * @vport: pointer to a host virtual N_Port data structure. |
4969 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
4970 | * @fan_ndlp: pointer to a node-list data structure. | |
4971 | * | |
4972 | * This routine processes a Fabric Address Notification (FAN) IOCB | |
4973 | * command received as an ELS unsolicited event. The FAN ELS command will | |
4974 | * only be processed on a physical port (i.e., the @vport represents the | |
4975 | * physical port). The fabric NodeName and PortName from the FAN IOCB are | |
4976 | * compared against those in the phba data structure. If any of those is | |
4977 | * different, the lpfc_initial_flogi() routine is invoked to initialize | |
4978 | * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise, | |
4979 | * if both of those are identical, the lpfc_issue_fabric_reglogin() routine | |
4980 | * is invoked to register login to the fabric. | |
4981 | * | |
4982 | * Return code | |
4983 | * 0 - Successfully processed fan iocb (currently always return 0). | |
4984 | **/ | |
dea3101e | 4985 | static int |
2e0fef85 JS |
4986 | lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, |
4987 | struct lpfc_nodelist *fan_ndlp) | |
dea3101e | 4988 | { |
0d2b6b83 | 4989 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 4990 | uint32_t *lp; |
5024ab17 | 4991 | FAN *fp; |
dea3101e | 4992 | |
0d2b6b83 JS |
4993 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n"); |
4994 | lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt; | |
4995 | fp = (FAN *) ++lp; | |
5024ab17 | 4996 | /* FAN received; Fan does not have a reply sequence */ |
0d2b6b83 JS |
4997 | if ((vport == phba->pport) && |
4998 | (vport->port_state == LPFC_LOCAL_CFG_LINK)) { | |
5024ab17 | 4999 | if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName, |
0d2b6b83 | 5000 | sizeof(struct lpfc_name))) || |
5024ab17 | 5001 | (memcmp(&phba->fc_fabparam.portName, &fp->FportName, |
0d2b6b83 JS |
5002 | sizeof(struct lpfc_name)))) { |
5003 | /* This port has switched fabrics. FLOGI is required */ | |
2e0fef85 | 5004 | lpfc_initial_flogi(vport); |
0d2b6b83 JS |
5005 | } else { |
5006 | /* FAN verified - skip FLOGI */ | |
5007 | vport->fc_myDID = vport->fc_prevDID; | |
6fb120a7 JS |
5008 | if (phba->sli_rev < LPFC_SLI_REV4) |
5009 | lpfc_issue_fabric_reglogin(vport); | |
5010 | else | |
5011 | lpfc_issue_reg_vfi(vport); | |
5024ab17 | 5012 | } |
dea3101e | 5013 | } |
c9f8735b | 5014 | return 0; |
dea3101e JB |
5015 | } |
5016 | ||
e59058c4 | 5017 | /** |
3621a710 | 5018 | * lpfc_els_timeout - Handler funciton to the els timer |
e59058c4 JS |
5019 | * @ptr: holder for the timer function associated data. |
5020 | * | |
5021 | * This routine is invoked by the ELS timer after timeout. It posts the ELS | |
5022 | * timer timeout event by setting the WORKER_ELS_TMO bit to the work port | |
5023 | * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake | |
5024 | * up the worker thread. It is for the worker thread to invoke the routine | |
5025 | * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO. | |
5026 | **/ | |
dea3101e JB |
5027 | void |
5028 | lpfc_els_timeout(unsigned long ptr) | |
5029 | { | |
2e0fef85 JS |
5030 | struct lpfc_vport *vport = (struct lpfc_vport *) ptr; |
5031 | struct lpfc_hba *phba = vport->phba; | |
5e9d9b82 | 5032 | uint32_t tmo_posted; |
dea3101e JB |
5033 | unsigned long iflag; |
5034 | ||
2e0fef85 | 5035 | spin_lock_irqsave(&vport->work_port_lock, iflag); |
5e9d9b82 JS |
5036 | tmo_posted = vport->work_port_events & WORKER_ELS_TMO; |
5037 | if (!tmo_posted) | |
2e0fef85 | 5038 | vport->work_port_events |= WORKER_ELS_TMO; |
5e9d9b82 | 5039 | spin_unlock_irqrestore(&vport->work_port_lock, iflag); |
92d7f7b0 | 5040 | |
5e9d9b82 JS |
5041 | if (!tmo_posted) |
5042 | lpfc_worker_wake_up(phba); | |
dea3101e JB |
5043 | return; |
5044 | } | |
5045 | ||
e59058c4 | 5046 | /** |
3621a710 | 5047 | * lpfc_els_timeout_handler - Process an els timeout event |
e59058c4 JS |
5048 | * @vport: pointer to a virtual N_Port data structure. |
5049 | * | |
5050 | * This routine is the actual handler function that processes an ELS timeout | |
5051 | * event. It walks the ELS ring to get and abort all the IOCBs (except the | |
5052 | * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by | |
5053 | * invoking the lpfc_sli_issue_abort_iotag() routine. | |
5054 | **/ | |
dea3101e | 5055 | void |
2e0fef85 | 5056 | lpfc_els_timeout_handler(struct lpfc_vport *vport) |
dea3101e | 5057 | { |
2e0fef85 | 5058 | struct lpfc_hba *phba = vport->phba; |
dea3101e JB |
5059 | struct lpfc_sli_ring *pring; |
5060 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5061 | IOCB_t *cmd = NULL; | |
5062 | struct lpfc_dmabuf *pcmd; | |
2e0fef85 | 5063 | uint32_t els_command = 0; |
dea3101e | 5064 | uint32_t timeout; |
2e0fef85 | 5065 | uint32_t remote_ID = 0xffffffff; |
dea3101e | 5066 | |
2e0fef85 | 5067 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
5068 | timeout = (uint32_t)(phba->fc_ratov << 1); |
5069 | ||
5070 | pring = &phba->sli.ring[LPFC_ELS_RING]; | |
dea3101e JB |
5071 | |
5072 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5073 | cmd = &piocb->iocb; | |
5074 | ||
2e0fef85 JS |
5075 | if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 || |
5076 | piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
5077 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
dea3101e | 5078 | continue; |
2e0fef85 JS |
5079 | |
5080 | if (piocb->vport != vport) | |
5081 | continue; | |
5082 | ||
dea3101e | 5083 | pcmd = (struct lpfc_dmabuf *) piocb->context2; |
2e0fef85 JS |
5084 | if (pcmd) |
5085 | els_command = *(uint32_t *) (pcmd->virt); | |
dea3101e | 5086 | |
92d7f7b0 JS |
5087 | if (els_command == ELS_CMD_FARP || |
5088 | els_command == ELS_CMD_FARPR || | |
5089 | els_command == ELS_CMD_FDISC) | |
5090 | continue; | |
5091 | ||
dea3101e | 5092 | if (piocb->drvrTimeout > 0) { |
92d7f7b0 | 5093 | if (piocb->drvrTimeout >= timeout) |
dea3101e | 5094 | piocb->drvrTimeout -= timeout; |
92d7f7b0 | 5095 | else |
dea3101e | 5096 | piocb->drvrTimeout = 0; |
dea3101e JB |
5097 | continue; |
5098 | } | |
5099 | ||
2e0fef85 JS |
5100 | remote_ID = 0xffffffff; |
5101 | if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR) | |
dea3101e | 5102 | remote_ID = cmd->un.elsreq64.remoteID; |
2e0fef85 JS |
5103 | else { |
5104 | struct lpfc_nodelist *ndlp; | |
5105 | ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext); | |
58da1ffb | 5106 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) |
2e0fef85 | 5107 | remote_ID = ndlp->nlp_DID; |
dea3101e | 5108 | } |
e8b62011 JS |
5109 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5110 | "0127 ELS timeout Data: x%x x%x x%x " | |
5111 | "x%x\n", els_command, | |
5112 | remote_ID, cmd->ulpCommand, cmd->ulpIoTag); | |
07951076 | 5113 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5114 | } |
2e0fef85 | 5115 | spin_unlock_irq(&phba->hbalock); |
5a0e326d | 5116 | |
2e0fef85 JS |
5117 | if (phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt) |
5118 | mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); | |
dea3101e JB |
5119 | } |
5120 | ||
e59058c4 | 5121 | /** |
3621a710 | 5122 | * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport |
e59058c4 JS |
5123 | * @vport: pointer to a host virtual N_Port data structure. |
5124 | * | |
5125 | * This routine is used to clean up all the outstanding ELS commands on a | |
5126 | * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport() | |
5127 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5128 | * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5129 | * the IOCBs with a non-NULL completion callback function, the callback | |
5130 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5131 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion | |
5132 | * callback function, the IOCB will simply be released. Finally, it walks | |
5133 | * the ELS transmit completion queue to issue an abort IOCB to any transmit | |
5134 | * completion queue IOCB that is associated with the @vport and is not | |
5135 | * an IOCB from libdfc (i.e., the management plane IOCBs that are not | |
5136 | * part of the discovery state machine) out to HBA by invoking the | |
5137 | * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the | |
5138 | * abort IOCB to any transmit completion queueed IOCB, it does not guarantee | |
5139 | * the IOCBs are aborted when this function returns. | |
5140 | **/ | |
dea3101e | 5141 | void |
2e0fef85 | 5142 | lpfc_els_flush_cmd(struct lpfc_vport *vport) |
dea3101e | 5143 | { |
2534ba75 | 5144 | LIST_HEAD(completions); |
2e0fef85 | 5145 | struct lpfc_hba *phba = vport->phba; |
329f9bc7 | 5146 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e JB |
5147 | struct lpfc_iocbq *tmp_iocb, *piocb; |
5148 | IOCB_t *cmd = NULL; | |
92d7f7b0 JS |
5149 | |
5150 | lpfc_fabric_abort_vport(vport); | |
dea3101e | 5151 | |
2e0fef85 | 5152 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
5153 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { |
5154 | cmd = &piocb->iocb; | |
5155 | ||
5156 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { | |
5157 | continue; | |
5158 | } | |
5159 | ||
5160 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
329f9bc7 JS |
5161 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || |
5162 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5163 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5164 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
dea3101e | 5165 | continue; |
dea3101e | 5166 | |
2e0fef85 JS |
5167 | if (piocb->vport != vport) |
5168 | continue; | |
5169 | ||
2534ba75 | 5170 | list_move_tail(&piocb->list, &completions); |
1dcb58e5 | 5171 | pring->txq_cnt--; |
dea3101e JB |
5172 | } |
5173 | ||
5174 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
dea3101e JB |
5175 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) { |
5176 | continue; | |
5177 | } | |
dea3101e | 5178 | |
2e0fef85 JS |
5179 | if (piocb->vport != vport) |
5180 | continue; | |
5181 | ||
07951076 | 5182 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); |
dea3101e | 5183 | } |
2e0fef85 | 5184 | spin_unlock_irq(&phba->hbalock); |
2534ba75 | 5185 | |
a257bf90 JS |
5186 | /* Cancell all the IOCBs from the completions list */ |
5187 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5188 | IOERR_SLI_ABORTED); | |
2534ba75 | 5189 | |
dea3101e JB |
5190 | return; |
5191 | } | |
5192 | ||
e59058c4 | 5193 | /** |
3621a710 | 5194 | * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA |
e59058c4 JS |
5195 | * @phba: pointer to lpfc hba data structure. |
5196 | * | |
5197 | * This routine is used to clean up all the outstanding ELS commands on a | |
5198 | * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba() | |
5199 | * routine. After that, it walks the ELS transmit queue to remove all the | |
5200 | * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For | |
5201 | * the IOCBs with the completion callback function associated, the callback | |
5202 | * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and | |
5203 | * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion | |
5204 | * callback function associated, the IOCB will simply be released. Finally, | |
5205 | * it walks the ELS transmit completion queue to issue an abort IOCB to any | |
5206 | * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the | |
5207 | * management plane IOCBs that are not part of the discovery state machine) | |
5208 | * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine. | |
5209 | **/ | |
549e55cd JS |
5210 | void |
5211 | lpfc_els_flush_all_cmd(struct lpfc_hba *phba) | |
5212 | { | |
5213 | LIST_HEAD(completions); | |
5214 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
5215 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
5216 | IOCB_t *cmd = NULL; | |
5217 | ||
5218 | lpfc_fabric_abort_hba(phba); | |
5219 | spin_lock_irq(&phba->hbalock); | |
5220 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) { | |
5221 | cmd = &piocb->iocb; | |
5222 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5223 | continue; | |
5224 | /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */ | |
5225 | if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN || | |
5226 | cmd->ulpCommand == CMD_QUE_RING_BUF64_CN || | |
5227 | cmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
5228 | cmd->ulpCommand == CMD_ABORT_XRI_CN) | |
5229 | continue; | |
5230 | list_move_tail(&piocb->list, &completions); | |
5231 | pring->txq_cnt--; | |
5232 | } | |
5233 | list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) { | |
5234 | if (piocb->iocb_flag & LPFC_IO_LIBDFC) | |
5235 | continue; | |
5236 | lpfc_sli_issue_abort_iotag(phba, pring, piocb); | |
5237 | } | |
5238 | spin_unlock_irq(&phba->hbalock); | |
a257bf90 JS |
5239 | |
5240 | /* Cancel all the IOCBs from the completions list */ | |
5241 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
5242 | IOERR_SLI_ABORTED); | |
5243 | ||
549e55cd JS |
5244 | return; |
5245 | } | |
5246 | ||
ea2151b4 | 5247 | /** |
3621a710 | 5248 | * lpfc_send_els_failure_event - Posts an ELS command failure event |
ea2151b4 JS |
5249 | * @phba: Pointer to hba context object. |
5250 | * @cmdiocbp: Pointer to command iocb which reported error. | |
5251 | * @rspiocbp: Pointer to response iocb which reported error. | |
5252 | * | |
5253 | * This function sends an event when there is an ELS command | |
5254 | * failure. | |
5255 | **/ | |
5256 | void | |
5257 | lpfc_send_els_failure_event(struct lpfc_hba *phba, | |
5258 | struct lpfc_iocbq *cmdiocbp, | |
5259 | struct lpfc_iocbq *rspiocbp) | |
5260 | { | |
5261 | struct lpfc_vport *vport = cmdiocbp->vport; | |
5262 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5263 | struct lpfc_lsrjt_event lsrjt_event; | |
5264 | struct lpfc_fabric_event_header fabric_event; | |
5265 | struct ls_rjt stat; | |
5266 | struct lpfc_nodelist *ndlp; | |
5267 | uint32_t *pcmd; | |
5268 | ||
5269 | ndlp = cmdiocbp->context1; | |
5270 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) | |
5271 | return; | |
5272 | ||
5273 | if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) { | |
5274 | lsrjt_event.header.event_type = FC_REG_ELS_EVENT; | |
5275 | lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV; | |
5276 | memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname, | |
5277 | sizeof(struct lpfc_name)); | |
5278 | memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename, | |
5279 | sizeof(struct lpfc_name)); | |
5280 | pcmd = (uint32_t *) (((struct lpfc_dmabuf *) | |
5281 | cmdiocbp->context2)->virt); | |
5282 | lsrjt_event.command = *pcmd; | |
5283 | stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]); | |
5284 | lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode; | |
5285 | lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp; | |
5286 | fc_host_post_vendor_event(shost, | |
5287 | fc_get_event_number(), | |
5288 | sizeof(lsrjt_event), | |
5289 | (char *)&lsrjt_event, | |
ddcc50f0 | 5290 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5291 | return; |
5292 | } | |
5293 | if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || | |
5294 | (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) { | |
5295 | fabric_event.event_type = FC_REG_FABRIC_EVENT; | |
5296 | if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) | |
5297 | fabric_event.subcategory = LPFC_EVENT_PORT_BUSY; | |
5298 | else | |
5299 | fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY; | |
5300 | memcpy(fabric_event.wwpn, &ndlp->nlp_portname, | |
5301 | sizeof(struct lpfc_name)); | |
5302 | memcpy(fabric_event.wwnn, &ndlp->nlp_nodename, | |
5303 | sizeof(struct lpfc_name)); | |
5304 | fc_host_post_vendor_event(shost, | |
5305 | fc_get_event_number(), | |
5306 | sizeof(fabric_event), | |
5307 | (char *)&fabric_event, | |
ddcc50f0 | 5308 | LPFC_NL_VENDOR_ID); |
ea2151b4 JS |
5309 | return; |
5310 | } | |
5311 | ||
5312 | } | |
5313 | ||
5314 | /** | |
3621a710 | 5315 | * lpfc_send_els_event - Posts unsolicited els event |
ea2151b4 JS |
5316 | * @vport: Pointer to vport object. |
5317 | * @ndlp: Pointer FC node object. | |
5318 | * @cmd: ELS command code. | |
5319 | * | |
5320 | * This function posts an event when there is an incoming | |
5321 | * unsolicited ELS command. | |
5322 | **/ | |
5323 | static void | |
5324 | lpfc_send_els_event(struct lpfc_vport *vport, | |
5325 | struct lpfc_nodelist *ndlp, | |
ddcc50f0 | 5326 | uint32_t *payload) |
ea2151b4 | 5327 | { |
ddcc50f0 JS |
5328 | struct lpfc_els_event_header *els_data = NULL; |
5329 | struct lpfc_logo_event *logo_data = NULL; | |
ea2151b4 JS |
5330 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
5331 | ||
ddcc50f0 JS |
5332 | if (*payload == ELS_CMD_LOGO) { |
5333 | logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); | |
5334 | if (!logo_data) { | |
5335 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5336 | "0148 Failed to allocate memory " | |
5337 | "for LOGO event\n"); | |
5338 | return; | |
5339 | } | |
5340 | els_data = &logo_data->header; | |
5341 | } else { | |
5342 | els_data = kmalloc(sizeof(struct lpfc_els_event_header), | |
5343 | GFP_KERNEL); | |
5344 | if (!els_data) { | |
5345 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5346 | "0149 Failed to allocate memory " | |
5347 | "for ELS event\n"); | |
5348 | return; | |
5349 | } | |
5350 | } | |
5351 | els_data->event_type = FC_REG_ELS_EVENT; | |
5352 | switch (*payload) { | |
ea2151b4 | 5353 | case ELS_CMD_PLOGI: |
ddcc50f0 | 5354 | els_data->subcategory = LPFC_EVENT_PLOGI_RCV; |
ea2151b4 JS |
5355 | break; |
5356 | case ELS_CMD_PRLO: | |
ddcc50f0 | 5357 | els_data->subcategory = LPFC_EVENT_PRLO_RCV; |
ea2151b4 JS |
5358 | break; |
5359 | case ELS_CMD_ADISC: | |
ddcc50f0 JS |
5360 | els_data->subcategory = LPFC_EVENT_ADISC_RCV; |
5361 | break; | |
5362 | case ELS_CMD_LOGO: | |
5363 | els_data->subcategory = LPFC_EVENT_LOGO_RCV; | |
5364 | /* Copy the WWPN in the LOGO payload */ | |
5365 | memcpy(logo_data->logo_wwpn, &payload[2], | |
5366 | sizeof(struct lpfc_name)); | |
ea2151b4 JS |
5367 | break; |
5368 | default: | |
e916141c | 5369 | kfree(els_data); |
ea2151b4 JS |
5370 | return; |
5371 | } | |
ddcc50f0 JS |
5372 | memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); |
5373 | memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
5374 | if (*payload == ELS_CMD_LOGO) { | |
5375 | fc_host_post_vendor_event(shost, | |
5376 | fc_get_event_number(), | |
5377 | sizeof(struct lpfc_logo_event), | |
5378 | (char *)logo_data, | |
5379 | LPFC_NL_VENDOR_ID); | |
5380 | kfree(logo_data); | |
5381 | } else { | |
5382 | fc_host_post_vendor_event(shost, | |
5383 | fc_get_event_number(), | |
5384 | sizeof(struct lpfc_els_event_header), | |
5385 | (char *)els_data, | |
5386 | LPFC_NL_VENDOR_ID); | |
5387 | kfree(els_data); | |
5388 | } | |
ea2151b4 JS |
5389 | |
5390 | return; | |
5391 | } | |
5392 | ||
5393 | ||
e59058c4 | 5394 | /** |
3621a710 | 5395 | * lpfc_els_unsol_buffer - Process an unsolicited event data buffer |
e59058c4 JS |
5396 | * @phba: pointer to lpfc hba data structure. |
5397 | * @pring: pointer to a SLI ring. | |
5398 | * @vport: pointer to a host virtual N_Port data structure. | |
5399 | * @elsiocb: pointer to lpfc els command iocb data structure. | |
5400 | * | |
5401 | * This routine is used for processing the IOCB associated with a unsolicited | |
5402 | * event. It first determines whether there is an existing ndlp that matches | |
5403 | * the DID from the unsolicited IOCB. If not, it will create a new one with | |
5404 | * the DID from the unsolicited IOCB. The ELS command from the unsolicited | |
5405 | * IOCB is then used to invoke the proper routine and to set up proper state | |
5406 | * of the discovery state machine. | |
5407 | **/ | |
ed957684 JS |
5408 | static void |
5409 | lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
92d7f7b0 | 5410 | struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) |
dea3101e | 5411 | { |
87af33fe | 5412 | struct Scsi_Host *shost; |
dea3101e | 5413 | struct lpfc_nodelist *ndlp; |
dea3101e | 5414 | struct ls_rjt stat; |
92d7f7b0 | 5415 | uint32_t *payload; |
2e0fef85 | 5416 | uint32_t cmd, did, newnode, rjt_err = 0; |
ed957684 | 5417 | IOCB_t *icmd = &elsiocb->iocb; |
dea3101e | 5418 | |
e47c9093 | 5419 | if (!vport || !(elsiocb->context2)) |
dea3101e | 5420 | goto dropit; |
2e0fef85 | 5421 | |
dea3101e | 5422 | newnode = 0; |
92d7f7b0 JS |
5423 | payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt; |
5424 | cmd = *payload; | |
ed957684 | 5425 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0) |
495a714c | 5426 | lpfc_post_buffer(phba, pring, 1); |
dea3101e | 5427 | |
858c9f6c JS |
5428 | did = icmd->un.rcvels.remoteID; |
5429 | if (icmd->ulpStatus) { | |
5430 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5431 | "RCV Unsol ELS: status:x%x/x%x did:x%x", | |
5432 | icmd->ulpStatus, icmd->un.ulpWord[4], did); | |
dea3101e | 5433 | goto dropit; |
858c9f6c | 5434 | } |
dea3101e JB |
5435 | |
5436 | /* Check to see if link went down during discovery */ | |
ed957684 | 5437 | if (lpfc_els_chk_latt(vport)) |
dea3101e | 5438 | goto dropit; |
dea3101e | 5439 | |
c868595d | 5440 | /* Ignore traffic received during vport shutdown. */ |
92d7f7b0 JS |
5441 | if (vport->load_flag & FC_UNLOADING) |
5442 | goto dropit; | |
5443 | ||
2e0fef85 | 5444 | ndlp = lpfc_findnode_did(vport, did); |
c9f8735b | 5445 | if (!ndlp) { |
dea3101e | 5446 | /* Cannot find existing Fabric ndlp, so allocate a new one */ |
c9f8735b | 5447 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); |
ed957684 | 5448 | if (!ndlp) |
dea3101e | 5449 | goto dropit; |
dea3101e | 5450 | |
2e0fef85 | 5451 | lpfc_nlp_init(vport, ndlp, did); |
98c9ea5c | 5452 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); |
dea3101e | 5453 | newnode = 1; |
e47c9093 | 5454 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) |
dea3101e | 5455 | ndlp->nlp_type |= NLP_FABRIC; |
58da1ffb JS |
5456 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5457 | ndlp = lpfc_enable_node(vport, ndlp, | |
5458 | NLP_STE_UNUSED_NODE); | |
5459 | if (!ndlp) | |
5460 | goto dropit; | |
5461 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5462 | newnode = 1; | |
5463 | if ((did & Fabric_DID_MASK) == Fabric_DID_MASK) | |
5464 | ndlp->nlp_type |= NLP_FABRIC; | |
5465 | } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { | |
5466 | /* This is similar to the new node path */ | |
5467 | ndlp = lpfc_nlp_get(ndlp); | |
5468 | if (!ndlp) | |
5469 | goto dropit; | |
5470 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE); | |
5471 | newnode = 1; | |
87af33fe | 5472 | } |
dea3101e JB |
5473 | |
5474 | phba->fc_stat.elsRcvFrame++; | |
e47c9093 | 5475 | |
329f9bc7 | 5476 | elsiocb->context1 = lpfc_nlp_get(ndlp); |
2e0fef85 | 5477 | elsiocb->vport = vport; |
dea3101e JB |
5478 | |
5479 | if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) { | |
5480 | cmd &= ELS_CMD_MASK; | |
5481 | } | |
5482 | /* ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5483 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
5484 | "0112 ELS command x%x received from NPORT x%x " | |
5485 | "Data: x%x\n", cmd, did, vport->port_state); | |
dea3101e JB |
5486 | switch (cmd) { |
5487 | case ELS_CMD_PLOGI: | |
858c9f6c JS |
5488 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5489 | "RCV PLOGI: did:x%x/ste:x%x flg:x%x", | |
5490 | did, vport->port_state, ndlp->nlp_flag); | |
5491 | ||
dea3101e | 5492 | phba->fc_stat.elsRcvPLOGI++; |
858c9f6c JS |
5493 | ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); |
5494 | ||
ddcc50f0 | 5495 | lpfc_send_els_event(vport, ndlp, payload); |
858c9f6c | 5496 | if (vport->port_state < LPFC_DISC_AUTH) { |
1b32f6aa JS |
5497 | if (!(phba->pport->fc_flag & FC_PT2PT) || |
5498 | (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { | |
5499 | rjt_err = LSRJT_UNABLE_TPC; | |
5500 | break; | |
5501 | } | |
5502 | /* We get here, and drop thru, if we are PT2PT with | |
5503 | * another NPort and the other side has initiated | |
5504 | * the PLOGI before responding to our FLOGI. | |
5505 | */ | |
dea3101e | 5506 | } |
87af33fe JS |
5507 | |
5508 | shost = lpfc_shost_from_vport(vport); | |
5509 | spin_lock_irq(shost->host_lock); | |
5510 | ndlp->nlp_flag &= ~NLP_TARGET_REMOVE; | |
5511 | spin_unlock_irq(shost->host_lock); | |
5512 | ||
2e0fef85 JS |
5513 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5514 | NLP_EVT_RCV_PLOGI); | |
858c9f6c | 5515 | |
dea3101e JB |
5516 | break; |
5517 | case ELS_CMD_FLOGI: | |
858c9f6c JS |
5518 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5519 | "RCV FLOGI: did:x%x/ste:x%x flg:x%x", | |
5520 | did, vport->port_state, ndlp->nlp_flag); | |
5521 | ||
dea3101e | 5522 | phba->fc_stat.elsRcvFLOGI++; |
51ef4c26 | 5523 | lpfc_els_rcv_flogi(vport, elsiocb, ndlp); |
87af33fe | 5524 | if (newnode) |
98c9ea5c | 5525 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5526 | break; |
5527 | case ELS_CMD_LOGO: | |
858c9f6c JS |
5528 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5529 | "RCV LOGO: did:x%x/ste:x%x flg:x%x", | |
5530 | did, vport->port_state, ndlp->nlp_flag); | |
5531 | ||
dea3101e | 5532 | phba->fc_stat.elsRcvLOGO++; |
ddcc50f0 | 5533 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 5534 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5535 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5536 | break; |
5537 | } | |
2e0fef85 | 5538 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO); |
dea3101e JB |
5539 | break; |
5540 | case ELS_CMD_PRLO: | |
858c9f6c JS |
5541 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5542 | "RCV PRLO: did:x%x/ste:x%x flg:x%x", | |
5543 | did, vport->port_state, ndlp->nlp_flag); | |
5544 | ||
dea3101e | 5545 | phba->fc_stat.elsRcvPRLO++; |
ddcc50f0 | 5546 | lpfc_send_els_event(vport, ndlp, payload); |
2e0fef85 | 5547 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5548 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5549 | break; |
5550 | } | |
2e0fef85 | 5551 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO); |
dea3101e JB |
5552 | break; |
5553 | case ELS_CMD_RSCN: | |
5554 | phba->fc_stat.elsRcvRSCN++; | |
51ef4c26 | 5555 | lpfc_els_rcv_rscn(vport, elsiocb, ndlp); |
87af33fe | 5556 | if (newnode) |
98c9ea5c | 5557 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5558 | break; |
5559 | case ELS_CMD_ADISC: | |
858c9f6c JS |
5560 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5561 | "RCV ADISC: did:x%x/ste:x%x flg:x%x", | |
5562 | did, vport->port_state, ndlp->nlp_flag); | |
5563 | ||
ddcc50f0 | 5564 | lpfc_send_els_event(vport, ndlp, payload); |
dea3101e | 5565 | phba->fc_stat.elsRcvADISC++; |
2e0fef85 | 5566 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5567 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5568 | break; |
5569 | } | |
2e0fef85 JS |
5570 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5571 | NLP_EVT_RCV_ADISC); | |
dea3101e JB |
5572 | break; |
5573 | case ELS_CMD_PDISC: | |
858c9f6c JS |
5574 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5575 | "RCV PDISC: did:x%x/ste:x%x flg:x%x", | |
5576 | did, vport->port_state, ndlp->nlp_flag); | |
5577 | ||
dea3101e | 5578 | phba->fc_stat.elsRcvPDISC++; |
2e0fef85 | 5579 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5580 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5581 | break; |
5582 | } | |
2e0fef85 JS |
5583 | lpfc_disc_state_machine(vport, ndlp, elsiocb, |
5584 | NLP_EVT_RCV_PDISC); | |
dea3101e JB |
5585 | break; |
5586 | case ELS_CMD_FARPR: | |
858c9f6c JS |
5587 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5588 | "RCV FARPR: did:x%x/ste:x%x flg:x%x", | |
5589 | did, vport->port_state, ndlp->nlp_flag); | |
5590 | ||
dea3101e | 5591 | phba->fc_stat.elsRcvFARPR++; |
2e0fef85 | 5592 | lpfc_els_rcv_farpr(vport, elsiocb, ndlp); |
dea3101e JB |
5593 | break; |
5594 | case ELS_CMD_FARP: | |
858c9f6c JS |
5595 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5596 | "RCV FARP: did:x%x/ste:x%x flg:x%x", | |
5597 | did, vport->port_state, ndlp->nlp_flag); | |
5598 | ||
dea3101e | 5599 | phba->fc_stat.elsRcvFARP++; |
2e0fef85 | 5600 | lpfc_els_rcv_farp(vport, elsiocb, ndlp); |
dea3101e JB |
5601 | break; |
5602 | case ELS_CMD_FAN: | |
858c9f6c JS |
5603 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5604 | "RCV FAN: did:x%x/ste:x%x flg:x%x", | |
5605 | did, vport->port_state, ndlp->nlp_flag); | |
5606 | ||
dea3101e | 5607 | phba->fc_stat.elsRcvFAN++; |
2e0fef85 | 5608 | lpfc_els_rcv_fan(vport, elsiocb, ndlp); |
dea3101e | 5609 | break; |
dea3101e | 5610 | case ELS_CMD_PRLI: |
858c9f6c JS |
5611 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5612 | "RCV PRLI: did:x%x/ste:x%x flg:x%x", | |
5613 | did, vport->port_state, ndlp->nlp_flag); | |
5614 | ||
dea3101e | 5615 | phba->fc_stat.elsRcvPRLI++; |
2e0fef85 | 5616 | if (vport->port_state < LPFC_DISC_AUTH) { |
858c9f6c | 5617 | rjt_err = LSRJT_UNABLE_TPC; |
dea3101e JB |
5618 | break; |
5619 | } | |
2e0fef85 | 5620 | lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI); |
dea3101e | 5621 | break; |
7bb3b137 | 5622 | case ELS_CMD_LIRR: |
858c9f6c JS |
5623 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5624 | "RCV LIRR: did:x%x/ste:x%x flg:x%x", | |
5625 | did, vport->port_state, ndlp->nlp_flag); | |
5626 | ||
7bb3b137 | 5627 | phba->fc_stat.elsRcvLIRR++; |
2e0fef85 | 5628 | lpfc_els_rcv_lirr(vport, elsiocb, ndlp); |
87af33fe | 5629 | if (newnode) |
98c9ea5c | 5630 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5631 | break; |
5632 | case ELS_CMD_RPS: | |
858c9f6c JS |
5633 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5634 | "RCV RPS: did:x%x/ste:x%x flg:x%x", | |
5635 | did, vport->port_state, ndlp->nlp_flag); | |
5636 | ||
7bb3b137 | 5637 | phba->fc_stat.elsRcvRPS++; |
2e0fef85 | 5638 | lpfc_els_rcv_rps(vport, elsiocb, ndlp); |
87af33fe | 5639 | if (newnode) |
98c9ea5c | 5640 | lpfc_nlp_put(ndlp); |
7bb3b137 JW |
5641 | break; |
5642 | case ELS_CMD_RPL: | |
858c9f6c JS |
5643 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5644 | "RCV RPL: did:x%x/ste:x%x flg:x%x", | |
5645 | did, vport->port_state, ndlp->nlp_flag); | |
5646 | ||
7bb3b137 | 5647 | phba->fc_stat.elsRcvRPL++; |
2e0fef85 | 5648 | lpfc_els_rcv_rpl(vport, elsiocb, ndlp); |
87af33fe | 5649 | if (newnode) |
98c9ea5c | 5650 | lpfc_nlp_put(ndlp); |
7bb3b137 | 5651 | break; |
dea3101e | 5652 | case ELS_CMD_RNID: |
858c9f6c JS |
5653 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5654 | "RCV RNID: did:x%x/ste:x%x flg:x%x", | |
5655 | did, vport->port_state, ndlp->nlp_flag); | |
5656 | ||
dea3101e | 5657 | phba->fc_stat.elsRcvRNID++; |
2e0fef85 | 5658 | lpfc_els_rcv_rnid(vport, elsiocb, ndlp); |
87af33fe | 5659 | if (newnode) |
98c9ea5c | 5660 | lpfc_nlp_put(ndlp); |
dea3101e | 5661 | break; |
5ffc266e JS |
5662 | case ELS_CMD_RRQ: |
5663 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, | |
5664 | "RCV RRQ: did:x%x/ste:x%x flg:x%x", | |
5665 | did, vport->port_state, ndlp->nlp_flag); | |
5666 | ||
5667 | phba->fc_stat.elsRcvRRQ++; | |
5668 | lpfc_els_rcv_rrq(vport, elsiocb, ndlp); | |
5669 | if (newnode) | |
5670 | lpfc_nlp_put(ndlp); | |
5671 | break; | |
dea3101e | 5672 | default: |
858c9f6c JS |
5673 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL, |
5674 | "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x", | |
5675 | cmd, did, vport->port_state); | |
5676 | ||
dea3101e | 5677 | /* Unsupported ELS command, reject */ |
858c9f6c | 5678 | rjt_err = LSRJT_INVALID_CMD; |
dea3101e JB |
5679 | |
5680 | /* Unknown ELS command <elsCmd> received from NPORT <did> */ | |
e8b62011 JS |
5681 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5682 | "0115 Unknown ELS command x%x " | |
5683 | "received from NPORT x%x\n", cmd, did); | |
87af33fe | 5684 | if (newnode) |
98c9ea5c | 5685 | lpfc_nlp_put(ndlp); |
dea3101e JB |
5686 | break; |
5687 | } | |
5688 | ||
5689 | /* check if need to LS_RJT received ELS cmd */ | |
5690 | if (rjt_err) { | |
92d7f7b0 | 5691 | memset(&stat, 0, sizeof(stat)); |
858c9f6c | 5692 | stat.un.b.lsRjtRsnCode = rjt_err; |
1f679caf | 5693 | stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE; |
858c9f6c JS |
5694 | lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp, |
5695 | NULL); | |
dea3101e JB |
5696 | } |
5697 | ||
d7c255b2 JS |
5698 | lpfc_nlp_put(elsiocb->context1); |
5699 | elsiocb->context1 = NULL; | |
ed957684 JS |
5700 | return; |
5701 | ||
5702 | dropit: | |
98c9ea5c | 5703 | if (vport && !(vport->load_flag & FC_UNLOADING)) |
6fb120a7 JS |
5704 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5705 | "0111 Dropping received ELS cmd " | |
ed957684 | 5706 | "Data: x%x x%x x%x\n", |
6fb120a7 | 5707 | icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout); |
ed957684 JS |
5708 | phba->fc_stat.elsRcvDrop++; |
5709 | } | |
5710 | ||
e59058c4 | 5711 | /** |
3621a710 | 5712 | * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier |
e59058c4 JS |
5713 | * @phba: pointer to lpfc hba data structure. |
5714 | * @vpi: host virtual N_Port identifier. | |
5715 | * | |
5716 | * This routine finds a vport on a HBA (referred by @phba) through a | |
5717 | * @vpi. The function walks the HBA's vport list and returns the address | |
5718 | * of the vport with the matching @vpi. | |
5719 | * | |
5720 | * Return code | |
5721 | * NULL - No vport with the matching @vpi found | |
5722 | * Otherwise - Address to the vport with the matching @vpi. | |
5723 | **/ | |
6669f9bb | 5724 | struct lpfc_vport * |
92d7f7b0 JS |
5725 | lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) |
5726 | { | |
5727 | struct lpfc_vport *vport; | |
549e55cd | 5728 | unsigned long flags; |
92d7f7b0 | 5729 | |
549e55cd | 5730 | spin_lock_irqsave(&phba->hbalock, flags); |
92d7f7b0 | 5731 | list_for_each_entry(vport, &phba->port_list, listentry) { |
549e55cd JS |
5732 | if (vport->vpi == vpi) { |
5733 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
92d7f7b0 | 5734 | return vport; |
549e55cd | 5735 | } |
92d7f7b0 | 5736 | } |
549e55cd | 5737 | spin_unlock_irqrestore(&phba->hbalock, flags); |
92d7f7b0 JS |
5738 | return NULL; |
5739 | } | |
ed957684 | 5740 | |
e59058c4 | 5741 | /** |
3621a710 | 5742 | * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring |
e59058c4 JS |
5743 | * @phba: pointer to lpfc hba data structure. |
5744 | * @pring: pointer to a SLI ring. | |
5745 | * @elsiocb: pointer to lpfc els iocb data structure. | |
5746 | * | |
5747 | * This routine is used to process an unsolicited event received from a SLI | |
5748 | * (Service Level Interface) ring. The actual processing of the data buffer | |
5749 | * associated with the unsolicited event is done by invoking the routine | |
5750 | * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the | |
5751 | * SLI ring on which the unsolicited event was received. | |
5752 | **/ | |
ed957684 JS |
5753 | void |
5754 | lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
5755 | struct lpfc_iocbq *elsiocb) | |
5756 | { | |
5757 | struct lpfc_vport *vport = phba->pport; | |
ed957684 | 5758 | IOCB_t *icmd = &elsiocb->iocb; |
ed957684 | 5759 | dma_addr_t paddr; |
92d7f7b0 JS |
5760 | struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; |
5761 | struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; | |
5762 | ||
d7c255b2 | 5763 | elsiocb->context1 = NULL; |
92d7f7b0 JS |
5764 | elsiocb->context2 = NULL; |
5765 | elsiocb->context3 = NULL; | |
ed957684 | 5766 | |
92d7f7b0 JS |
5767 | if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) { |
5768 | lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ); | |
5769 | } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT && | |
5770 | (icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING) { | |
ed957684 JS |
5771 | phba->fc_stat.NoRcvBuf++; |
5772 | /* Not enough posted buffers; Try posting more buffers */ | |
92d7f7b0 | 5773 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
495a714c | 5774 | lpfc_post_buffer(phba, pring, 0); |
ed957684 JS |
5775 | return; |
5776 | } | |
5777 | ||
92d7f7b0 JS |
5778 | if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) && |
5779 | (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX || | |
5780 | icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
5781 | if (icmd->unsli3.rcvsli3.vpi == 0xffff) | |
5782 | vport = phba->pport; | |
6fb120a7 JS |
5783 | else |
5784 | vport = lpfc_find_vport_by_vpid(phba, | |
5785 | icmd->unsli3.rcvsli3.vpi - phba->vpi_base); | |
92d7f7b0 | 5786 | } |
7f5f3d0d JS |
5787 | /* If there are no BDEs associated |
5788 | * with this IOCB, there is nothing to do. | |
5789 | */ | |
ed957684 JS |
5790 | if (icmd->ulpBdeCount == 0) |
5791 | return; | |
5792 | ||
7f5f3d0d JS |
5793 | /* type of ELS cmd is first 32bit word |
5794 | * in packet | |
5795 | */ | |
ed957684 | 5796 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
92d7f7b0 | 5797 | elsiocb->context2 = bdeBuf1; |
ed957684 JS |
5798 | } else { |
5799 | paddr = getPaddr(icmd->un.cont64[0].addrHigh, | |
5800 | icmd->un.cont64[0].addrLow); | |
92d7f7b0 JS |
5801 | elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring, |
5802 | paddr); | |
ed957684 JS |
5803 | } |
5804 | ||
92d7f7b0 JS |
5805 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); |
5806 | /* | |
5807 | * The different unsolicited event handlers would tell us | |
5808 | * if they are done with "mp" by setting context2 to NULL. | |
5809 | */ | |
dea3101e | 5810 | if (elsiocb->context2) { |
92d7f7b0 JS |
5811 | lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); |
5812 | elsiocb->context2 = NULL; | |
dea3101e | 5813 | } |
ed957684 JS |
5814 | |
5815 | /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */ | |
92d7f7b0 | 5816 | if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) && |
ed957684 | 5817 | icmd->ulpBdeCount == 2) { |
92d7f7b0 JS |
5818 | elsiocb->context2 = bdeBuf2; |
5819 | lpfc_els_unsol_buffer(phba, pring, vport, elsiocb); | |
ed957684 JS |
5820 | /* free mp if we are done with it */ |
5821 | if (elsiocb->context2) { | |
92d7f7b0 JS |
5822 | lpfc_in_buf_free(phba, elsiocb->context2); |
5823 | elsiocb->context2 = NULL; | |
5824 | } | |
5825 | } | |
5826 | } | |
5827 | ||
e59058c4 | 5828 | /** |
3621a710 | 5829 | * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr |
e59058c4 JS |
5830 | * @phba: pointer to lpfc hba data structure. |
5831 | * @vport: pointer to a virtual N_Port data structure. | |
5832 | * | |
5833 | * This routine issues a Port Login (PLOGI) to the Name Server with | |
5834 | * State Change Request (SCR) for a @vport. This routine will create an | |
5835 | * ndlp for the Name Server associated to the @vport if such node does | |
5836 | * not already exist. The PLOGI to Name Server is issued by invoking the | |
5837 | * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface | |
5838 | * (FDMI) is configured to the @vport, a FDMI node will be created and | |
5839 | * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine. | |
5840 | **/ | |
92d7f7b0 JS |
5841 | void |
5842 | lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) | |
5843 | { | |
5844 | struct lpfc_nodelist *ndlp, *ndlp_fdmi; | |
5845 | ||
5846 | ndlp = lpfc_findnode_did(vport, NameServer_DID); | |
5847 | if (!ndlp) { | |
5848 | ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); | |
5849 | if (!ndlp) { | |
5850 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5851 | lpfc_disc_start(vport); | |
5852 | return; | |
5853 | } | |
5854 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5855 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5856 | "0251 NameServer login: no memory\n"); | |
92d7f7b0 JS |
5857 | return; |
5858 | } | |
5859 | lpfc_nlp_init(vport, ndlp, NameServer_DID); | |
e47c9093 JS |
5860 | } else if (!NLP_CHK_NODE_ACT(ndlp)) { |
5861 | ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); | |
5862 | if (!ndlp) { | |
5863 | if (phba->fc_topology == TOPOLOGY_LOOP) { | |
5864 | lpfc_disc_start(vport); | |
5865 | return; | |
5866 | } | |
5867 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5868 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, | |
5869 | "0348 NameServer login: node freed\n"); | |
5870 | return; | |
5871 | } | |
92d7f7b0 | 5872 | } |
58da1ffb | 5873 | ndlp->nlp_type |= NLP_FABRIC; |
92d7f7b0 JS |
5874 | |
5875 | lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE); | |
5876 | ||
5877 | if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) { | |
5878 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
e8b62011 JS |
5879 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
5880 | "0252 Cannot issue NameServer login\n"); | |
92d7f7b0 JS |
5881 | return; |
5882 | } | |
5883 | ||
3de2a653 | 5884 | if (vport->cfg_fdmi_on) { |
92d7f7b0 JS |
5885 | ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool, |
5886 | GFP_KERNEL); | |
5887 | if (ndlp_fdmi) { | |
5888 | lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID); | |
5889 | ndlp_fdmi->nlp_type |= NLP_FABRIC; | |
58da1ffb JS |
5890 | lpfc_nlp_set_state(vport, ndlp_fdmi, |
5891 | NLP_STE_PLOGI_ISSUE); | |
92d7f7b0 JS |
5892 | lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, |
5893 | 0); | |
5894 | } | |
5895 | } | |
5896 | return; | |
5897 | } | |
5898 | ||
e59058c4 | 5899 | /** |
3621a710 | 5900 | * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport |
e59058c4 JS |
5901 | * @phba: pointer to lpfc hba data structure. |
5902 | * @pmb: pointer to the driver internal queue element for mailbox command. | |
5903 | * | |
5904 | * This routine is the completion callback function to register new vport | |
5905 | * mailbox command. If the new vport mailbox command completes successfully, | |
5906 | * the fabric registration login shall be performed on physical port (the | |
5907 | * new vport created is actually a physical port, with VPI 0) or the port | |
5908 | * login to Name Server for State Change Request (SCR) will be performed | |
5909 | * on virtual port (real virtual port, with VPI greater than 0). | |
5910 | **/ | |
92d7f7b0 JS |
5911 | static void |
5912 | lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
5913 | { | |
5914 | struct lpfc_vport *vport = pmb->vport; | |
5915 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
5916 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2; | |
04c68496 | 5917 | MAILBOX_t *mb = &pmb->u.mb; |
92d7f7b0 | 5918 | |
09372820 | 5919 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5920 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5921 | spin_unlock_irq(shost->host_lock); |
92d7f7b0 JS |
5922 | |
5923 | if (mb->mbxStatus) { | |
e8b62011 JS |
5924 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
5925 | "0915 Register VPI failed: 0x%x\n", | |
5926 | mb->mbxStatus); | |
92d7f7b0 JS |
5927 | |
5928 | switch (mb->mbxStatus) { | |
5929 | case 0x11: /* unsupported feature */ | |
5930 | case 0x9603: /* max_vpi exceeded */ | |
7f5f3d0d | 5931 | case 0x9602: /* Link event since CLEAR_LA */ |
92d7f7b0 JS |
5932 | /* giving up on vport registration */ |
5933 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
5934 | spin_lock_irq(shost->host_lock); | |
5935 | vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP); | |
5936 | spin_unlock_irq(shost->host_lock); | |
5937 | lpfc_can_disctmo(vport); | |
5938 | break; | |
5939 | default: | |
5940 | /* Try to recover from this error */ | |
5941 | lpfc_mbx_unreg_vpi(vport); | |
09372820 | 5942 | spin_lock_irq(shost->host_lock); |
92d7f7b0 | 5943 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
09372820 | 5944 | spin_unlock_irq(shost->host_lock); |
7f5f3d0d JS |
5945 | if (vport->port_type == LPFC_PHYSICAL_PORT) |
5946 | lpfc_initial_flogi(vport); | |
5947 | else | |
5948 | lpfc_initial_fdisc(vport); | |
92d7f7b0 JS |
5949 | break; |
5950 | } | |
92d7f7b0 | 5951 | } else { |
1987807d | 5952 | vport->vpi_state |= LPFC_VPI_REGISTERED; |
92d7f7b0 | 5953 | if (vport == phba->pport) |
6fb120a7 JS |
5954 | if (phba->sli_rev < LPFC_SLI_REV4) |
5955 | lpfc_issue_fabric_reglogin(vport); | |
5956 | else | |
5957 | lpfc_issue_reg_vfi(vport); | |
92d7f7b0 JS |
5958 | else |
5959 | lpfc_do_scr_ns_plogi(phba, vport); | |
5960 | } | |
fa4066b6 JS |
5961 | |
5962 | /* Now, we decrement the ndlp reference count held for this | |
5963 | * callback function | |
5964 | */ | |
5965 | lpfc_nlp_put(ndlp); | |
5966 | ||
92d7f7b0 JS |
5967 | mempool_free(pmb, phba->mbox_mem_pool); |
5968 | return; | |
5969 | } | |
5970 | ||
e59058c4 | 5971 | /** |
3621a710 | 5972 | * lpfc_register_new_vport - Register a new vport with a HBA |
e59058c4 JS |
5973 | * @phba: pointer to lpfc hba data structure. |
5974 | * @vport: pointer to a host virtual N_Port data structure. | |
5975 | * @ndlp: pointer to a node-list data structure. | |
5976 | * | |
5977 | * This routine registers the @vport as a new virtual port with a HBA. | |
5978 | * It is done through a registering vpi mailbox command. | |
5979 | **/ | |
a6ababd2 | 5980 | static void |
92d7f7b0 JS |
5981 | lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, |
5982 | struct lpfc_nodelist *ndlp) | |
5983 | { | |
09372820 | 5984 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
92d7f7b0 JS |
5985 | LPFC_MBOXQ_t *mbox; |
5986 | ||
5987 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
5988 | if (mbox) { | |
6fb120a7 | 5989 | lpfc_reg_vpi(vport, mbox); |
92d7f7b0 JS |
5990 | mbox->vport = vport; |
5991 | mbox->context2 = lpfc_nlp_get(ndlp); | |
5992 | mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport; | |
0b727fea | 5993 | if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) |
92d7f7b0 | 5994 | == MBX_NOT_FINISHED) { |
fa4066b6 JS |
5995 | /* mailbox command not success, decrement ndlp |
5996 | * reference count for this command | |
5997 | */ | |
5998 | lpfc_nlp_put(ndlp); | |
92d7f7b0 | 5999 | mempool_free(mbox, phba->mbox_mem_pool); |
92d7f7b0 | 6000 | |
e8b62011 JS |
6001 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6002 | "0253 Register VPI: Can't send mbox\n"); | |
fa4066b6 | 6003 | goto mbox_err_exit; |
92d7f7b0 JS |
6004 | } |
6005 | } else { | |
e8b62011 JS |
6006 | lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX, |
6007 | "0254 Register VPI: no memory\n"); | |
fa4066b6 | 6008 | goto mbox_err_exit; |
92d7f7b0 | 6009 | } |
fa4066b6 JS |
6010 | return; |
6011 | ||
6012 | mbox_err_exit: | |
6013 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6014 | spin_lock_irq(shost->host_lock); | |
6015 | vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI; | |
6016 | spin_unlock_irq(shost->host_lock); | |
6017 | return; | |
92d7f7b0 JS |
6018 | } |
6019 | ||
e59058c4 | 6020 | /** |
3621a710 | 6021 | * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command |
e59058c4 JS |
6022 | * @phba: pointer to lpfc hba data structure. |
6023 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6024 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6025 | * | |
6026 | * This routine is the completion callback function to a Fabric Discover | |
6027 | * (FDISC) ELS command. Since all the FDISC ELS commands are issued | |
6028 | * single threaded, each FDISC completion callback function will reset | |
6029 | * the discovery timer for all vports such that the timers will not get | |
6030 | * unnecessary timeout. The function checks the FDISC IOCB status. If error | |
6031 | * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the | |
6032 | * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID | |
6033 | * assigned to the vport has been changed with the completion of the FDISC | |
6034 | * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index) | |
6035 | * are unregistered from the HBA, and then the lpfc_register_new_vport() | |
6036 | * routine is invoked to register new vport with the HBA. Otherwise, the | |
6037 | * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name | |
6038 | * Server for State Change Request (SCR). | |
6039 | **/ | |
92d7f7b0 JS |
6040 | static void |
6041 | lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6042 | struct lpfc_iocbq *rspiocb) | |
6043 | { | |
6044 | struct lpfc_vport *vport = cmdiocb->vport; | |
6045 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6046 | struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1; | |
6047 | struct lpfc_nodelist *np; | |
6048 | struct lpfc_nodelist *next_np; | |
6049 | IOCB_t *irsp = &rspiocb->iocb; | |
6050 | struct lpfc_iocbq *piocb; | |
6051 | ||
e8b62011 JS |
6052 | lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, |
6053 | "0123 FDISC completes. x%x/x%x prevDID: x%x\n", | |
6054 | irsp->ulpStatus, irsp->un.ulpWord[4], | |
6055 | vport->fc_prevDID); | |
92d7f7b0 JS |
6056 | /* Since all FDISCs are being single threaded, we |
6057 | * must reset the discovery timer for ALL vports | |
6058 | * waiting to send FDISC when one completes. | |
6059 | */ | |
6060 | list_for_each_entry(piocb, &phba->fabric_iocb_list, list) { | |
6061 | lpfc_set_disctmo(piocb->vport); | |
6062 | } | |
6063 | ||
858c9f6c JS |
6064 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6065 | "FDISC cmpl: status:x%x/x%x prevdid:x%x", | |
6066 | irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID); | |
6067 | ||
92d7f7b0 JS |
6068 | if (irsp->ulpStatus) { |
6069 | /* Check for retry */ | |
6070 | if (lpfc_els_retry(phba, cmdiocb, rspiocb)) | |
6071 | goto out; | |
92d7f7b0 | 6072 | /* FDISC failed */ |
e8b62011 | 6073 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
d7c255b2 | 6074 | "0126 FDISC failed. (%d/%d)\n", |
e8b62011 | 6075 | irsp->ulpStatus, irsp->un.ulpWord[4]); |
d7c255b2 JS |
6076 | goto fdisc_failed; |
6077 | } | |
d7c255b2 JS |
6078 | spin_lock_irq(shost->host_lock); |
6079 | vport->fc_flag |= FC_FABRIC; | |
6080 | if (vport->phba->fc_topology == TOPOLOGY_LOOP) | |
6081 | vport->fc_flag |= FC_PUBLIC_LOOP; | |
6082 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 | 6083 | |
d7c255b2 JS |
6084 | vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; |
6085 | lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); | |
6086 | if ((vport->fc_prevDID != vport->fc_myDID) && | |
6087 | !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { | |
6088 | /* If our NportID changed, we need to ensure all | |
6089 | * remaining NPORTs get unreg_login'ed so we can | |
6090 | * issue unreg_vpi. | |
6091 | */ | |
6092 | list_for_each_entry_safe(np, next_np, | |
6093 | &vport->fc_nodes, nlp_listp) { | |
6094 | if (!NLP_CHK_NODE_ACT(ndlp) || | |
6095 | (np->nlp_state != NLP_STE_NPR_NODE) || | |
6096 | !(np->nlp_flag & NLP_NPR_ADISC)) | |
6097 | continue; | |
09372820 | 6098 | spin_lock_irq(shost->host_lock); |
d7c255b2 | 6099 | np->nlp_flag &= ~NLP_NPR_ADISC; |
09372820 | 6100 | spin_unlock_irq(shost->host_lock); |
d7c255b2 | 6101 | lpfc_unreg_rpi(vport, np); |
92d7f7b0 | 6102 | } |
d7c255b2 JS |
6103 | lpfc_mbx_unreg_vpi(vport); |
6104 | spin_lock_irq(shost->host_lock); | |
6105 | vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; | |
6106 | spin_unlock_irq(shost->host_lock); | |
92d7f7b0 JS |
6107 | } |
6108 | ||
d7c255b2 JS |
6109 | if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) |
6110 | lpfc_register_new_vport(phba, vport, ndlp); | |
6111 | else | |
6112 | lpfc_do_scr_ns_plogi(phba, vport); | |
6113 | goto out; | |
6114 | fdisc_failed: | |
6115 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); | |
6116 | /* Cancel discovery timer */ | |
6117 | lpfc_can_disctmo(vport); | |
6118 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6119 | out: |
6120 | lpfc_els_free_iocb(phba, cmdiocb); | |
6121 | } | |
6122 | ||
e59058c4 | 6123 | /** |
3621a710 | 6124 | * lpfc_issue_els_fdisc - Issue a fdisc iocb command |
e59058c4 JS |
6125 | * @vport: pointer to a virtual N_Port data structure. |
6126 | * @ndlp: pointer to a node-list data structure. | |
6127 | * @retry: number of retries to the command IOCB. | |
6128 | * | |
6129 | * This routine prepares and issues a Fabric Discover (FDISC) IOCB to | |
6130 | * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb() | |
6131 | * routine to issue the IOCB, which makes sure only one outstanding fabric | |
6132 | * IOCB will be sent off HBA at any given time. | |
6133 | * | |
6134 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6135 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6136 | * will be stored into the context1 field of the IOCB for the completion | |
6137 | * callback function to the FDISC ELS command. | |
6138 | * | |
6139 | * Return code | |
6140 | * 0 - Successfully issued fdisc iocb command | |
6141 | * 1 - Failed to issue fdisc iocb command | |
6142 | **/ | |
a6ababd2 | 6143 | static int |
92d7f7b0 JS |
6144 | lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, |
6145 | uint8_t retry) | |
6146 | { | |
6147 | struct lpfc_hba *phba = vport->phba; | |
6148 | IOCB_t *icmd; | |
6149 | struct lpfc_iocbq *elsiocb; | |
6150 | struct serv_parm *sp; | |
6151 | uint8_t *pcmd; | |
6152 | uint16_t cmdsize; | |
6153 | int did = ndlp->nlp_DID; | |
6154 | int rc; | |
92d7f7b0 | 6155 | |
5ffc266e | 6156 | vport->port_state = LPFC_FDISC; |
92d7f7b0 JS |
6157 | cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm)); |
6158 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did, | |
6159 | ELS_CMD_FDISC); | |
6160 | if (!elsiocb) { | |
92d7f7b0 | 6161 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6162 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6163 | "0255 Issue FDISC: no IOCB\n"); | |
92d7f7b0 JS |
6164 | return 1; |
6165 | } | |
6166 | ||
6167 | icmd = &elsiocb->iocb; | |
6168 | icmd->un.elsreq64.myID = 0; | |
6169 | icmd->un.elsreq64.fl = 1; | |
6170 | ||
f1126688 JS |
6171 | if (phba->sli_rev == LPFC_SLI_REV4) { |
6172 | /* FDISC needs to be 1 for WQE VPI */ | |
6173 | elsiocb->iocb.ulpCt_h = (SLI4_CT_VPI >> 1) & 1; | |
6174 | elsiocb->iocb.ulpCt_l = SLI4_CT_VPI & 1 ; | |
6175 | /* Set the ulpContext to the vpi */ | |
6176 | elsiocb->iocb.ulpContext = vport->vpi + phba->vpi_base; | |
6177 | } else { | |
6178 | /* For FDISC, Let FDISC rsp set the NPortID for this VPI */ | |
6179 | icmd->ulpCt_h = 1; | |
6180 | icmd->ulpCt_l = 0; | |
6181 | } | |
92d7f7b0 JS |
6182 | |
6183 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6184 | *((uint32_t *) (pcmd)) = ELS_CMD_FDISC; | |
6185 | pcmd += sizeof(uint32_t); /* CSP Word 1 */ | |
6186 | memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm)); | |
6187 | sp = (struct serv_parm *) pcmd; | |
6188 | /* Setup CSPs accordingly for Fabric */ | |
6189 | sp->cmn.e_d_tov = 0; | |
6190 | sp->cmn.w2.r_a_tov = 0; | |
6191 | sp->cls1.classValid = 0; | |
6192 | sp->cls2.seqDelivery = 1; | |
6193 | sp->cls3.seqDelivery = 1; | |
6194 | ||
6195 | pcmd += sizeof(uint32_t); /* CSP Word 2 */ | |
6196 | pcmd += sizeof(uint32_t); /* CSP Word 3 */ | |
6197 | pcmd += sizeof(uint32_t); /* CSP Word 4 */ | |
6198 | pcmd += sizeof(uint32_t); /* Port Name */ | |
6199 | memcpy(pcmd, &vport->fc_portname, 8); | |
6200 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6201 | pcmd += sizeof(uint32_t); /* Node Name */ | |
6202 | memcpy(pcmd, &vport->fc_nodename, 8); | |
6203 | ||
6204 | lpfc_set_disctmo(vport); | |
6205 | ||
6206 | phba->fc_stat.elsXmitFDISC++; | |
6207 | elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc; | |
6208 | ||
858c9f6c JS |
6209 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6210 | "Issue FDISC: did:x%x", | |
6211 | did, 0, 0); | |
6212 | ||
92d7f7b0 JS |
6213 | rc = lpfc_issue_fabric_iocb(phba, elsiocb); |
6214 | if (rc == IOCB_ERROR) { | |
6215 | lpfc_els_free_iocb(phba, elsiocb); | |
92d7f7b0 | 6216 | lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
e8b62011 JS |
6217 | lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, |
6218 | "0256 Issue FDISC: Cannot send IOCB\n"); | |
92d7f7b0 JS |
6219 | return 1; |
6220 | } | |
6221 | lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING); | |
92d7f7b0 JS |
6222 | return 0; |
6223 | } | |
6224 | ||
e59058c4 | 6225 | /** |
3621a710 | 6226 | * lpfc_cmpl_els_npiv_logo - Completion function with vport logo |
e59058c4 JS |
6227 | * @phba: pointer to lpfc hba data structure. |
6228 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6229 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6230 | * | |
6231 | * This routine is the completion callback function to the issuing of a LOGO | |
6232 | * ELS command off a vport. It frees the command IOCB and then decrement the | |
6233 | * reference count held on ndlp for this completion function, indicating that | |
6234 | * the reference to the ndlp is no long needed. Note that the | |
6235 | * lpfc_els_free_iocb() routine decrements the ndlp reference held for this | |
6236 | * callback function and an additional explicit ndlp reference decrementation | |
6237 | * will trigger the actual release of the ndlp. | |
6238 | **/ | |
92d7f7b0 JS |
6239 | static void |
6240 | lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6241 | struct lpfc_iocbq *rspiocb) | |
6242 | { | |
6243 | struct lpfc_vport *vport = cmdiocb->vport; | |
858c9f6c | 6244 | IOCB_t *irsp; |
e47c9093 JS |
6245 | struct lpfc_nodelist *ndlp; |
6246 | ndlp = (struct lpfc_nodelist *)cmdiocb->context1; | |
858c9f6c JS |
6247 | |
6248 | irsp = &rspiocb->iocb; | |
6249 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, | |
6250 | "LOGO npiv cmpl: status:x%x/x%x did:x%x", | |
6251 | irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID); | |
92d7f7b0 JS |
6252 | |
6253 | lpfc_els_free_iocb(phba, cmdiocb); | |
6254 | vport->unreg_vpi_cmpl = VPORT_ERROR; | |
e47c9093 JS |
6255 | |
6256 | /* Trigger the release of the ndlp after logo */ | |
6257 | lpfc_nlp_put(ndlp); | |
92d7f7b0 JS |
6258 | } |
6259 | ||
e59058c4 | 6260 | /** |
3621a710 | 6261 | * lpfc_issue_els_npiv_logo - Issue a logo off a vport |
e59058c4 JS |
6262 | * @vport: pointer to a virtual N_Port data structure. |
6263 | * @ndlp: pointer to a node-list data structure. | |
6264 | * | |
6265 | * This routine issues a LOGO ELS command to an @ndlp off a @vport. | |
6266 | * | |
6267 | * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp | |
6268 | * will be incremented by 1 for holding the ndlp and the reference to ndlp | |
6269 | * will be stored into the context1 field of the IOCB for the completion | |
6270 | * callback function to the LOGO ELS command. | |
6271 | * | |
6272 | * Return codes | |
6273 | * 0 - Successfully issued logo off the @vport | |
6274 | * 1 - Failed to issue logo off the @vport | |
6275 | **/ | |
92d7f7b0 JS |
6276 | int |
6277 | lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) | |
6278 | { | |
6279 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
6280 | struct lpfc_hba *phba = vport->phba; | |
92d7f7b0 JS |
6281 | IOCB_t *icmd; |
6282 | struct lpfc_iocbq *elsiocb; | |
6283 | uint8_t *pcmd; | |
6284 | uint16_t cmdsize; | |
6285 | ||
6286 | cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name); | |
6287 | elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID, | |
6288 | ELS_CMD_LOGO); | |
6289 | if (!elsiocb) | |
6290 | return 1; | |
6291 | ||
6292 | icmd = &elsiocb->iocb; | |
6293 | pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt); | |
6294 | *((uint32_t *) (pcmd)) = ELS_CMD_LOGO; | |
6295 | pcmd += sizeof(uint32_t); | |
6296 | ||
6297 | /* Fill in LOGO payload */ | |
6298 | *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID); | |
6299 | pcmd += sizeof(uint32_t); | |
6300 | memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name)); | |
6301 | ||
858c9f6c JS |
6302 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, |
6303 | "Issue LOGO npiv did:x%x flg:x%x", | |
6304 | ndlp->nlp_DID, ndlp->nlp_flag, 0); | |
6305 | ||
92d7f7b0 JS |
6306 | elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo; |
6307 | spin_lock_irq(shost->host_lock); | |
6308 | ndlp->nlp_flag |= NLP_LOGO_SND; | |
6309 | spin_unlock_irq(shost->host_lock); | |
3772a991 JS |
6310 | if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == |
6311 | IOCB_ERROR) { | |
92d7f7b0 JS |
6312 | spin_lock_irq(shost->host_lock); |
6313 | ndlp->nlp_flag &= ~NLP_LOGO_SND; | |
6314 | spin_unlock_irq(shost->host_lock); | |
6315 | lpfc_els_free_iocb(phba, elsiocb); | |
6316 | return 1; | |
6317 | } | |
6318 | return 0; | |
6319 | } | |
6320 | ||
e59058c4 | 6321 | /** |
3621a710 | 6322 | * lpfc_fabric_block_timeout - Handler function to the fabric block timer |
e59058c4 JS |
6323 | * @ptr: holder for the timer function associated data. |
6324 | * | |
6325 | * This routine is invoked by the fabric iocb block timer after | |
6326 | * timeout. It posts the fabric iocb block timeout event by setting the | |
6327 | * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes | |
6328 | * lpfc_worker_wake_up() routine to wake up the worker thread. It is for | |
6329 | * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the | |
6330 | * posted event WORKER_FABRIC_BLOCK_TMO. | |
6331 | **/ | |
92d7f7b0 JS |
6332 | void |
6333 | lpfc_fabric_block_timeout(unsigned long ptr) | |
6334 | { | |
6335 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
6336 | unsigned long iflags; | |
6337 | uint32_t tmo_posted; | |
5e9d9b82 | 6338 | |
92d7f7b0 JS |
6339 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); |
6340 | tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO; | |
6341 | if (!tmo_posted) | |
6342 | phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO; | |
6343 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
6344 | ||
5e9d9b82 JS |
6345 | if (!tmo_posted) |
6346 | lpfc_worker_wake_up(phba); | |
6347 | return; | |
92d7f7b0 JS |
6348 | } |
6349 | ||
e59058c4 | 6350 | /** |
3621a710 | 6351 | * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list |
e59058c4 JS |
6352 | * @phba: pointer to lpfc hba data structure. |
6353 | * | |
6354 | * This routine issues one fabric iocb from the driver internal list to | |
6355 | * the HBA. It first checks whether it's ready to issue one fabric iocb to | |
6356 | * the HBA (whether there is no outstanding fabric iocb). If so, it shall | |
6357 | * remove one pending fabric iocb from the driver internal list and invokes | |
6358 | * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA. | |
6359 | **/ | |
92d7f7b0 JS |
6360 | static void |
6361 | lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) | |
6362 | { | |
6363 | struct lpfc_iocbq *iocb; | |
6364 | unsigned long iflags; | |
6365 | int ret; | |
92d7f7b0 JS |
6366 | IOCB_t *cmd; |
6367 | ||
6368 | repeat: | |
6369 | iocb = NULL; | |
6370 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7f5f3d0d | 6371 | /* Post any pending iocb to the SLI layer */ |
92d7f7b0 JS |
6372 | if (atomic_read(&phba->fabric_iocb_count) == 0) { |
6373 | list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb), | |
6374 | list); | |
6375 | if (iocb) | |
7f5f3d0d | 6376 | /* Increment fabric iocb count to hold the position */ |
92d7f7b0 JS |
6377 | atomic_inc(&phba->fabric_iocb_count); |
6378 | } | |
6379 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6380 | if (iocb) { | |
6381 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6382 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6383 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6384 | ||
858c9f6c JS |
6385 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6386 | "Fabric sched1: ste:x%x", | |
6387 | iocb->vport->port_state, 0, 0); | |
6388 | ||
3772a991 | 6389 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
6390 | |
6391 | if (ret == IOCB_ERROR) { | |
6392 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6393 | iocb->fabric_iocb_cmpl = NULL; | |
6394 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6395 | cmd = &iocb->iocb; | |
6396 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; | |
6397 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6398 | iocb->iocb_cmpl(phba, iocb, iocb); | |
6399 | ||
6400 | atomic_dec(&phba->fabric_iocb_count); | |
6401 | goto repeat; | |
6402 | } | |
6403 | } | |
6404 | ||
6405 | return; | |
6406 | } | |
6407 | ||
e59058c4 | 6408 | /** |
3621a710 | 6409 | * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command |
e59058c4 JS |
6410 | * @phba: pointer to lpfc hba data structure. |
6411 | * | |
6412 | * This routine unblocks the issuing fabric iocb command. The function | |
6413 | * will clear the fabric iocb block bit and then invoke the routine | |
6414 | * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb | |
6415 | * from the driver internal fabric iocb list. | |
6416 | **/ | |
92d7f7b0 JS |
6417 | void |
6418 | lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) | |
6419 | { | |
6420 | clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6421 | ||
6422 | lpfc_resume_fabric_iocbs(phba); | |
6423 | return; | |
6424 | } | |
6425 | ||
e59058c4 | 6426 | /** |
3621a710 | 6427 | * lpfc_block_fabric_iocbs - Block issuing fabric iocb command |
e59058c4 JS |
6428 | * @phba: pointer to lpfc hba data structure. |
6429 | * | |
6430 | * This routine blocks the issuing fabric iocb for a specified amount of | |
6431 | * time (currently 100 ms). This is done by set the fabric iocb block bit | |
6432 | * and set up a timeout timer for 100ms. When the block bit is set, no more | |
6433 | * fabric iocb will be issued out of the HBA. | |
6434 | **/ | |
92d7f7b0 JS |
6435 | static void |
6436 | lpfc_block_fabric_iocbs(struct lpfc_hba *phba) | |
6437 | { | |
6438 | int blocked; | |
6439 | ||
6440 | blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
7f5f3d0d | 6441 | /* Start a timer to unblock fabric iocbs after 100ms */ |
92d7f7b0 JS |
6442 | if (!blocked) |
6443 | mod_timer(&phba->fabric_block_timer, jiffies + HZ/10 ); | |
6444 | ||
6445 | return; | |
6446 | } | |
6447 | ||
e59058c4 | 6448 | /** |
3621a710 | 6449 | * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb |
e59058c4 JS |
6450 | * @phba: pointer to lpfc hba data structure. |
6451 | * @cmdiocb: pointer to lpfc command iocb data structure. | |
6452 | * @rspiocb: pointer to lpfc response iocb data structure. | |
6453 | * | |
6454 | * This routine is the callback function that is put to the fabric iocb's | |
6455 | * callback function pointer (iocb->iocb_cmpl). The original iocb's callback | |
6456 | * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback | |
6457 | * function first restores and invokes the original iocb's callback function | |
6458 | * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next | |
6459 | * fabric bound iocb from the driver internal fabric iocb list onto the wire. | |
6460 | **/ | |
92d7f7b0 JS |
6461 | static void |
6462 | lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6463 | struct lpfc_iocbq *rspiocb) | |
6464 | { | |
6465 | struct ls_rjt stat; | |
6466 | ||
6467 | if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC) | |
6468 | BUG(); | |
6469 | ||
6470 | switch (rspiocb->iocb.ulpStatus) { | |
6471 | case IOSTAT_NPORT_RJT: | |
6472 | case IOSTAT_FABRIC_RJT: | |
6473 | if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) { | |
6474 | lpfc_block_fabric_iocbs(phba); | |
ed957684 | 6475 | } |
92d7f7b0 JS |
6476 | break; |
6477 | ||
6478 | case IOSTAT_NPORT_BSY: | |
6479 | case IOSTAT_FABRIC_BSY: | |
6480 | lpfc_block_fabric_iocbs(phba); | |
6481 | break; | |
6482 | ||
6483 | case IOSTAT_LS_RJT: | |
6484 | stat.un.lsRjtError = | |
6485 | be32_to_cpu(rspiocb->iocb.un.ulpWord[4]); | |
6486 | if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) || | |
6487 | (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY)) | |
6488 | lpfc_block_fabric_iocbs(phba); | |
6489 | break; | |
6490 | } | |
6491 | ||
6492 | if (atomic_read(&phba->fabric_iocb_count) == 0) | |
6493 | BUG(); | |
6494 | ||
6495 | cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl; | |
6496 | cmdiocb->fabric_iocb_cmpl = NULL; | |
6497 | cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6498 | cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb); | |
6499 | ||
6500 | atomic_dec(&phba->fabric_iocb_count); | |
6501 | if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) { | |
7f5f3d0d JS |
6502 | /* Post any pending iocbs to HBA */ |
6503 | lpfc_resume_fabric_iocbs(phba); | |
92d7f7b0 JS |
6504 | } |
6505 | } | |
6506 | ||
e59058c4 | 6507 | /** |
3621a710 | 6508 | * lpfc_issue_fabric_iocb - Issue a fabric iocb command |
e59058c4 JS |
6509 | * @phba: pointer to lpfc hba data structure. |
6510 | * @iocb: pointer to lpfc command iocb data structure. | |
6511 | * | |
6512 | * This routine is used as the top-level API for issuing a fabric iocb command | |
6513 | * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver | |
6514 | * function makes sure that only one fabric bound iocb will be outstanding at | |
6515 | * any given time. As such, this function will first check to see whether there | |
6516 | * is already an outstanding fabric iocb on the wire. If so, it will put the | |
6517 | * newly issued iocb onto the driver internal fabric iocb list, waiting to be | |
6518 | * issued later. Otherwise, it will issue the iocb on the wire and update the | |
6519 | * fabric iocb count it indicate that there is one fabric iocb on the wire. | |
6520 | * | |
6521 | * Note, this implementation has a potential sending out fabric IOCBs out of | |
6522 | * order. The problem is caused by the construction of the "ready" boolen does | |
6523 | * not include the condition that the internal fabric IOCB list is empty. As | |
6524 | * such, it is possible a fabric IOCB issued by this routine might be "jump" | |
6525 | * ahead of the fabric IOCBs in the internal list. | |
6526 | * | |
6527 | * Return code | |
6528 | * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully | |
6529 | * IOCB_ERROR - failed to issue fabric iocb | |
6530 | **/ | |
a6ababd2 | 6531 | static int |
92d7f7b0 JS |
6532 | lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) |
6533 | { | |
6534 | unsigned long iflags; | |
92d7f7b0 JS |
6535 | int ready; |
6536 | int ret; | |
6537 | ||
6538 | if (atomic_read(&phba->fabric_iocb_count) > 1) | |
6539 | BUG(); | |
6540 | ||
6541 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6542 | ready = atomic_read(&phba->fabric_iocb_count) == 0 && | |
6543 | !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags); | |
6544 | ||
7f5f3d0d JS |
6545 | if (ready) |
6546 | /* Increment fabric iocb count to hold the position */ | |
6547 | atomic_inc(&phba->fabric_iocb_count); | |
92d7f7b0 JS |
6548 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
6549 | if (ready) { | |
6550 | iocb->fabric_iocb_cmpl = iocb->iocb_cmpl; | |
6551 | iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb; | |
6552 | iocb->iocb_flag |= LPFC_IO_FABRIC; | |
6553 | ||
858c9f6c JS |
6554 | lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD, |
6555 | "Fabric sched2: ste:x%x", | |
6556 | iocb->vport->port_state, 0, 0); | |
6557 | ||
3772a991 | 6558 | ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0); |
92d7f7b0 JS |
6559 | |
6560 | if (ret == IOCB_ERROR) { | |
6561 | iocb->iocb_cmpl = iocb->fabric_iocb_cmpl; | |
6562 | iocb->fabric_iocb_cmpl = NULL; | |
6563 | iocb->iocb_flag &= ~LPFC_IO_FABRIC; | |
6564 | atomic_dec(&phba->fabric_iocb_count); | |
6565 | } | |
6566 | } else { | |
6567 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6568 | list_add_tail(&iocb->list, &phba->fabric_iocb_list); | |
6569 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6570 | ret = IOCB_SUCCESS; | |
6571 | } | |
6572 | return ret; | |
6573 | } | |
6574 | ||
e59058c4 | 6575 | /** |
3621a710 | 6576 | * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list |
e59058c4 JS |
6577 | * @vport: pointer to a virtual N_Port data structure. |
6578 | * | |
6579 | * This routine aborts all the IOCBs associated with a @vport from the | |
6580 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6581 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6582 | * list, removes each IOCB associated with the @vport off the list, set the | |
6583 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6584 | * associated with the IOCB. | |
6585 | **/ | |
a6ababd2 | 6586 | static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) |
92d7f7b0 JS |
6587 | { |
6588 | LIST_HEAD(completions); | |
6589 | struct lpfc_hba *phba = vport->phba; | |
6590 | struct lpfc_iocbq *tmp_iocb, *piocb; | |
92d7f7b0 JS |
6591 | |
6592 | spin_lock_irq(&phba->hbalock); | |
6593 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6594 | list) { | |
6595 | ||
6596 | if (piocb->vport != vport) | |
6597 | continue; | |
6598 | ||
6599 | list_move_tail(&piocb->list, &completions); | |
6600 | } | |
6601 | spin_unlock_irq(&phba->hbalock); | |
6602 | ||
a257bf90 JS |
6603 | /* Cancel all the IOCBs from the completions list */ |
6604 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6605 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
6606 | } |
6607 | ||
e59058c4 | 6608 | /** |
3621a710 | 6609 | * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list |
e59058c4 JS |
6610 | * @ndlp: pointer to a node-list data structure. |
6611 | * | |
6612 | * This routine aborts all the IOCBs associated with an @ndlp from the | |
6613 | * driver internal fabric IOCB list. The list contains fabric IOCBs to be | |
6614 | * issued to the ELS IOCB ring. This abort function walks the fabric IOCB | |
6615 | * list, removes each IOCB associated with the @ndlp off the list, set the | |
6616 | * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function | |
6617 | * associated with the IOCB. | |
6618 | **/ | |
92d7f7b0 JS |
6619 | void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) |
6620 | { | |
6621 | LIST_HEAD(completions); | |
a257bf90 | 6622 | struct lpfc_hba *phba = ndlp->phba; |
92d7f7b0 JS |
6623 | struct lpfc_iocbq *tmp_iocb, *piocb; |
6624 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
92d7f7b0 JS |
6625 | |
6626 | spin_lock_irq(&phba->hbalock); | |
6627 | list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list, | |
6628 | list) { | |
6629 | if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) { | |
6630 | ||
6631 | list_move_tail(&piocb->list, &completions); | |
ed957684 | 6632 | } |
dea3101e | 6633 | } |
92d7f7b0 JS |
6634 | spin_unlock_irq(&phba->hbalock); |
6635 | ||
a257bf90 JS |
6636 | /* Cancel all the IOCBs from the completions list */ |
6637 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6638 | IOERR_SLI_ABORTED); | |
92d7f7b0 JS |
6639 | } |
6640 | ||
e59058c4 | 6641 | /** |
3621a710 | 6642 | * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list |
e59058c4 JS |
6643 | * @phba: pointer to lpfc hba data structure. |
6644 | * | |
6645 | * This routine aborts all the IOCBs currently on the driver internal | |
6646 | * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS | |
6647 | * IOCB ring. This function takes the entire IOCB list off the fabric IOCB | |
6648 | * list, removes IOCBs off the list, set the status feild to | |
6649 | * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with | |
6650 | * the IOCB. | |
6651 | **/ | |
92d7f7b0 JS |
6652 | void lpfc_fabric_abort_hba(struct lpfc_hba *phba) |
6653 | { | |
6654 | LIST_HEAD(completions); | |
92d7f7b0 JS |
6655 | |
6656 | spin_lock_irq(&phba->hbalock); | |
6657 | list_splice_init(&phba->fabric_iocb_list, &completions); | |
6658 | spin_unlock_irq(&phba->hbalock); | |
6659 | ||
a257bf90 JS |
6660 | /* Cancel all the IOCBs from the completions list */ |
6661 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6662 | IOERR_SLI_ABORTED); | |
dea3101e | 6663 | } |
6fb120a7 JS |
6664 | |
6665 | /** | |
6666 | * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort | |
6667 | * @phba: pointer to lpfc hba data structure. | |
6668 | * @axri: pointer to the els xri abort wcqe structure. | |
6669 | * | |
6670 | * This routine is invoked by the worker thread to process a SLI4 slow-path | |
6671 | * ELS aborted xri. | |
6672 | **/ | |
6673 | void | |
6674 | lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba, | |
6675 | struct sli4_wcqe_xri_aborted *axri) | |
6676 | { | |
6677 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
6678 | struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; | |
6679 | unsigned long iflag = 0; | |
6680 | ||
6681 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, iflag); | |
6682 | list_for_each_entry_safe(sglq_entry, sglq_next, | |
6683 | &phba->sli4_hba.lpfc_abts_els_sgl_list, list) { | |
6684 | if (sglq_entry->sli4_xritag == xri) { | |
6685 | list_del(&sglq_entry->list); | |
6686 | spin_unlock_irqrestore( | |
6687 | &phba->sli4_hba.abts_sgl_list_lock, | |
6688 | iflag); | |
6689 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6690 | ||
6691 | list_add_tail(&sglq_entry->list, | |
6692 | &phba->sli4_hba.lpfc_sgl_list); | |
6693 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6694 | return; | |
6695 | } | |
6696 | } | |
6697 | spin_unlock_irqrestore(&phba->sli4_hba.abts_sgl_list_lock, iflag); | |
6698 | } |