James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1 | /******************************************************************* |
| 2 | * This file is part of the Emulex Linux Device Driver for * |
| 3 | * Fibre Channel Host Bus Adapters. * |
James Smart | 792581d | 2011-03-11 16:06:44 -0500 | [diff] [blame] | 4 | * Copyright (C) 2009-2011 Emulex. All rights reserved. * |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5 | * EMULEX and SLI are trademarks of Emulex. * |
| 6 | * www.emulex.com * |
| 7 | * * |
| 8 | * This program is free software; you can redistribute it and/or * |
| 9 | * modify it under the terms of version 2 of the GNU General * |
| 10 | * Public License as published by the Free Software Foundation. * |
| 11 | * This program is distributed in the hope that it will be useful. * |
| 12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| 13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| 15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| 16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| 17 | * more details, a copy of which can be found in the file COPYING * |
| 18 | * included with this package. * |
| 19 | *******************************************************************/ |
| 20 | |
| 21 | #include <linux/interrupt.h> |
| 22 | #include <linux/mempool.h> |
| 23 | #include <linux/pci.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
James Smart | 277e76f | 2010-02-18 11:07:15 -0500 | [diff] [blame] | 25 | #include <linux/delay.h> |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 26 | |
| 27 | #include <scsi/scsi.h> |
| 28 | #include <scsi/scsi_host.h> |
| 29 | #include <scsi/scsi_transport_fc.h> |
| 30 | #include <scsi/scsi_bsg_fc.h> |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 31 | #include <scsi/fc/fc_fs.h> |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 32 | |
| 33 | #include "lpfc_hw4.h" |
| 34 | #include "lpfc_hw.h" |
| 35 | #include "lpfc_sli.h" |
| 36 | #include "lpfc_sli4.h" |
| 37 | #include "lpfc_nl.h" |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 38 | #include "lpfc_bsg.h" |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 39 | #include "lpfc_disc.h" |
| 40 | #include "lpfc_scsi.h" |
| 41 | #include "lpfc.h" |
| 42 | #include "lpfc_logmsg.h" |
| 43 | #include "lpfc_crtn.h" |
| 44 | #include "lpfc_vport.h" |
| 45 | #include "lpfc_version.h" |
| 46 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 47 | struct lpfc_bsg_event { |
| 48 | struct list_head node; |
| 49 | struct kref kref; |
| 50 | wait_queue_head_t wq; |
| 51 | |
| 52 | /* Event type and waiter identifiers */ |
| 53 | uint32_t type_mask; |
| 54 | uint32_t req_id; |
| 55 | uint32_t reg_id; |
| 56 | |
| 57 | /* next two flags are here for the auto-delete logic */ |
| 58 | unsigned long wait_time_stamp; |
| 59 | int waiting; |
| 60 | |
| 61 | /* seen and not seen events */ |
| 62 | struct list_head events_to_get; |
| 63 | struct list_head events_to_see; |
| 64 | |
| 65 | /* job waiting for this event to finish */ |
| 66 | struct fc_bsg_job *set_job; |
| 67 | }; |
| 68 | |
| 69 | struct lpfc_bsg_iocb { |
| 70 | struct lpfc_iocbq *cmdiocbq; |
| 71 | struct lpfc_iocbq *rspiocbq; |
| 72 | struct lpfc_dmabuf *bmp; |
| 73 | struct lpfc_nodelist *ndlp; |
| 74 | |
| 75 | /* job waiting for this iocb to finish */ |
| 76 | struct fc_bsg_job *set_job; |
| 77 | }; |
| 78 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 79 | struct lpfc_bsg_mbox { |
| 80 | LPFC_MBOXQ_t *pmboxq; |
| 81 | MAILBOX_t *mb; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 82 | struct lpfc_dmabuf *rxbmp; /* for BIU diags */ |
| 83 | struct lpfc_dmabufext *dmp; /* for BIU diags */ |
| 84 | uint8_t *ext; /* extended mailbox data */ |
| 85 | uint32_t mbOffset; /* from app */ |
| 86 | uint32_t inExtWLen; /* from app */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 87 | uint32_t outExtWLen; /* from app */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 88 | |
| 89 | /* job waiting for this mbox command to finish */ |
| 90 | struct fc_bsg_job *set_job; |
| 91 | }; |
| 92 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 93 | #define MENLO_DID 0x0000FC0E |
| 94 | |
| 95 | struct lpfc_bsg_menlo { |
| 96 | struct lpfc_iocbq *cmdiocbq; |
| 97 | struct lpfc_iocbq *rspiocbq; |
| 98 | struct lpfc_dmabuf *bmp; |
| 99 | |
| 100 | /* job waiting for this iocb to finish */ |
| 101 | struct fc_bsg_job *set_job; |
| 102 | }; |
| 103 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 104 | #define TYPE_EVT 1 |
| 105 | #define TYPE_IOCB 2 |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 106 | #define TYPE_MBOX 3 |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 107 | #define TYPE_MENLO 4 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 108 | struct bsg_job_data { |
| 109 | uint32_t type; |
| 110 | union { |
| 111 | struct lpfc_bsg_event *evt; |
| 112 | struct lpfc_bsg_iocb iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 113 | struct lpfc_bsg_mbox mbox; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 114 | struct lpfc_bsg_menlo menlo; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 115 | } context_un; |
| 116 | }; |
| 117 | |
| 118 | struct event_data { |
| 119 | struct list_head node; |
| 120 | uint32_t type; |
| 121 | uint32_t immed_dat; |
| 122 | void *data; |
| 123 | uint32_t len; |
| 124 | }; |
| 125 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 126 | #define BUF_SZ_4K 4096 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 127 | #define SLI_CT_ELX_LOOPBACK 0x10 |
| 128 | |
| 129 | enum ELX_LOOPBACK_CMD { |
| 130 | ELX_LOOPBACK_XRI_SETUP, |
| 131 | ELX_LOOPBACK_DATA, |
| 132 | }; |
| 133 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 134 | #define ELX_LOOPBACK_HEADER_SZ \ |
| 135 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) |
| 136 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 137 | struct lpfc_dmabufext { |
| 138 | struct lpfc_dmabuf dma; |
| 139 | uint32_t size; |
| 140 | uint32_t flag; |
| 141 | }; |
| 142 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 143 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 144 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler |
| 145 | * @phba: Pointer to HBA context object. |
| 146 | * @cmdiocbq: Pointer to command iocb. |
| 147 | * @rspiocbq: Pointer to response iocb. |
| 148 | * |
| 149 | * This function is the completion handler for iocbs issued using |
| 150 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the |
| 151 | * ring event handler function without any lock held. This function |
| 152 | * can be called from both worker thread context and interrupt |
| 153 | * context. This function also can be called from another thread which |
| 154 | * cleans up the SLI layer objects. |
| 155 | * This function copies the contents of the response iocb to the |
| 156 | * response iocb memory object provided by the caller of |
| 157 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 158 | * sleeps for the iocb completion. |
| 159 | **/ |
| 160 | static void |
| 161 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, |
| 162 | struct lpfc_iocbq *cmdiocbq, |
| 163 | struct lpfc_iocbq *rspiocbq) |
| 164 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 165 | struct bsg_job_data *dd_data; |
| 166 | struct fc_bsg_job *job; |
| 167 | IOCB_t *rsp; |
| 168 | struct lpfc_dmabuf *bmp; |
| 169 | struct lpfc_nodelist *ndlp; |
| 170 | struct lpfc_bsg_iocb *iocb; |
| 171 | unsigned long flags; |
| 172 | int rc = 0; |
| 173 | |
| 174 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 175 | dd_data = cmdiocbq->context2; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 176 | if (!dd_data) { |
| 177 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 178 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 179 | return; |
| 180 | } |
| 181 | |
| 182 | iocb = &dd_data->context_un.iocb; |
| 183 | job = iocb->set_job; |
| 184 | job->dd_data = NULL; /* so timeout handler does not reply */ |
| 185 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 186 | bmp = iocb->bmp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 187 | rsp = &rspiocbq->iocb; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 188 | ndlp = cmdiocbq->context1; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 189 | |
| 190 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 191 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 192 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 193 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 194 | |
| 195 | if (rsp->ulpStatus) { |
| 196 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 197 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 198 | case IOERR_SEQUENCE_TIMEOUT: |
| 199 | rc = -ETIMEDOUT; |
| 200 | break; |
| 201 | case IOERR_INVALID_RPI: |
| 202 | rc = -EFAULT; |
| 203 | break; |
| 204 | default: |
| 205 | rc = -EACCES; |
| 206 | break; |
| 207 | } |
| 208 | } else |
| 209 | rc = -EACCES; |
| 210 | } else |
| 211 | job->reply->reply_payload_rcv_len = |
| 212 | rsp->un.genreq64.bdl.bdeSize; |
| 213 | |
| 214 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 215 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 216 | lpfc_nlp_put(ndlp); |
| 217 | kfree(bmp); |
| 218 | kfree(dd_data); |
| 219 | /* make error code available to userspace */ |
| 220 | job->reply->result = rc; |
| 221 | /* complete the job back to userspace */ |
| 222 | job->job_done(job); |
| 223 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * lpfc_bsg_send_mgmt_cmd - send a CT command from a bsg request |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 229 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 230 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 231 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 232 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 233 | { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 234 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 235 | struct lpfc_hba *phba = vport->phba; |
| 236 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 237 | struct lpfc_nodelist *ndlp = rdata->pnode; |
| 238 | struct ulp_bde64 *bpl = NULL; |
| 239 | uint32_t timeout; |
| 240 | struct lpfc_iocbq *cmdiocbq = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 241 | IOCB_t *cmd; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 242 | struct lpfc_dmabuf *bmp = NULL; |
| 243 | int request_nseg; |
| 244 | int reply_nseg; |
| 245 | struct scatterlist *sgel = NULL; |
| 246 | int numbde; |
| 247 | dma_addr_t busaddr; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 248 | struct bsg_job_data *dd_data; |
| 249 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 250 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 251 | int iocb_stat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 252 | |
| 253 | /* in case no data is transferred */ |
| 254 | job->reply->reply_payload_rcv_len = 0; |
| 255 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 256 | /* allocate our bsg tracking structure */ |
| 257 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 258 | if (!dd_data) { |
| 259 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 260 | "2733 Failed allocation of dd_data\n"); |
| 261 | rc = -ENOMEM; |
| 262 | goto no_dd_data; |
| 263 | } |
| 264 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 265 | if (!lpfc_nlp_get(ndlp)) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 266 | rc = -ENODEV; |
| 267 | goto no_ndlp; |
| 268 | } |
| 269 | |
| 270 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 271 | if (!bmp) { |
| 272 | rc = -ENOMEM; |
| 273 | goto free_ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { |
| 277 | rc = -ENODEV; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 278 | goto free_bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 279 | } |
| 280 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 281 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 282 | if (!cmdiocbq) { |
| 283 | rc = -ENOMEM; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 284 | goto free_bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 285 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 286 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 287 | cmd = &cmdiocbq->iocb; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 288 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 289 | if (!bmp->virt) { |
| 290 | rc = -ENOMEM; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 291 | goto free_cmdiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 292 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 293 | |
| 294 | INIT_LIST_HEAD(&bmp->list); |
| 295 | bpl = (struct ulp_bde64 *) bmp->virt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 296 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 297 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 298 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 299 | busaddr = sg_dma_address(sgel); |
| 300 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 301 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 302 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 303 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 304 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 305 | bpl++; |
| 306 | } |
| 307 | |
| 308 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 309 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 310 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 311 | busaddr = sg_dma_address(sgel); |
| 312 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 313 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 314 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 315 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 316 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 317 | bpl++; |
| 318 | } |
| 319 | |
| 320 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 321 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 322 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 323 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 324 | cmd->un.genreq64.bdl.bdeSize = |
| 325 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 326 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 327 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 328 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 329 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 330 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 331 | cmd->ulpBdeCount = 1; |
| 332 | cmd->ulpLe = 1; |
| 333 | cmd->ulpClass = CLASS3; |
| 334 | cmd->ulpContext = ndlp->nlp_rpi; |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame^] | 335 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 336 | cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 337 | cmd->ulpOwner = OWN_CHIP; |
| 338 | cmdiocbq->vport = phba->pport; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 339 | cmdiocbq->context3 = bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 340 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 341 | timeout = phba->fc_ratov * 2; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 342 | cmd->ulpTimeout = timeout; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 343 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 344 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 345 | cmdiocbq->context1 = ndlp; |
| 346 | cmdiocbq->context2 = dd_data; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 347 | dd_data->type = TYPE_IOCB; |
| 348 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 349 | dd_data->context_un.iocb.set_job = job; |
| 350 | dd_data->context_un.iocb.bmp = bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 351 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 352 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 353 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 354 | rc = -EIO ; |
| 355 | goto free_cmdiocbq; |
| 356 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 357 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 358 | writel(creg_val, phba->HCregaddr); |
| 359 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 360 | } |
| 361 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 362 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
| 363 | if (iocb_stat == IOCB_SUCCESS) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 364 | return 0; /* done for now */ |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 365 | else if (iocb_stat == IOCB_BUSY) |
| 366 | rc = -EAGAIN; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 367 | else |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 368 | rc = -EIO; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 369 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 370 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 371 | /* iocb failed so cleanup */ |
| 372 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 373 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 374 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 375 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 376 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 377 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 378 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 379 | free_cmdiocbq: |
| 380 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 381 | free_bmp: |
| 382 | kfree(bmp); |
| 383 | free_ndlp: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 384 | lpfc_nlp_put(ndlp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 385 | no_ndlp: |
| 386 | kfree(dd_data); |
| 387 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 388 | /* make error code available to userspace */ |
| 389 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 390 | job->dd_data = NULL; |
| 391 | return rc; |
| 392 | } |
| 393 | |
| 394 | /** |
| 395 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler |
| 396 | * @phba: Pointer to HBA context object. |
| 397 | * @cmdiocbq: Pointer to command iocb. |
| 398 | * @rspiocbq: Pointer to response iocb. |
| 399 | * |
| 400 | * This function is the completion handler for iocbs issued using |
| 401 | * lpfc_bsg_rport_els_cmp function. This function is called by the |
| 402 | * ring event handler function without any lock held. This function |
| 403 | * can be called from both worker thread context and interrupt |
| 404 | * context. This function also can be called from other thread which |
| 405 | * cleans up the SLI layer objects. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 406 | * This function copies the contents of the response iocb to the |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 407 | * response iocb memory object provided by the caller of |
| 408 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 409 | * sleeps for the iocb completion. |
| 410 | **/ |
| 411 | static void |
| 412 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, |
| 413 | struct lpfc_iocbq *cmdiocbq, |
| 414 | struct lpfc_iocbq *rspiocbq) |
| 415 | { |
| 416 | struct bsg_job_data *dd_data; |
| 417 | struct fc_bsg_job *job; |
| 418 | IOCB_t *rsp; |
| 419 | struct lpfc_nodelist *ndlp; |
| 420 | struct lpfc_dmabuf *pbuflist = NULL; |
| 421 | struct fc_bsg_ctels_reply *els_reply; |
| 422 | uint8_t *rjt_data; |
| 423 | unsigned long flags; |
| 424 | int rc = 0; |
| 425 | |
| 426 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 427 | dd_data = cmdiocbq->context1; |
| 428 | /* normal completion and timeout crossed paths, already done */ |
| 429 | if (!dd_data) { |
Jiri Slaby | 67221a4 | 2010-03-16 16:23:58 +0100 | [diff] [blame] | 430 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 431 | return; |
| 432 | } |
| 433 | |
| 434 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
| 435 | if (cmdiocbq->context2 && rspiocbq) |
| 436 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, |
| 437 | &rspiocbq->iocb, sizeof(IOCB_t)); |
| 438 | |
| 439 | job = dd_data->context_un.iocb.set_job; |
| 440 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; |
| 441 | rspiocbq = dd_data->context_un.iocb.rspiocbq; |
| 442 | rsp = &rspiocbq->iocb; |
| 443 | ndlp = dd_data->context_un.iocb.ndlp; |
| 444 | |
| 445 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 446 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 447 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 448 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 449 | |
| 450 | if (job->reply->result == -EAGAIN) |
| 451 | rc = -EAGAIN; |
| 452 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) |
| 453 | job->reply->reply_payload_rcv_len = |
| 454 | rsp->un.elsreq64.bdl.bdeSize; |
| 455 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { |
| 456 | job->reply->reply_payload_rcv_len = |
| 457 | sizeof(struct fc_bsg_ctels_reply); |
| 458 | /* LS_RJT data returned in word 4 */ |
| 459 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; |
| 460 | els_reply = &job->reply->reply_data.ctels_reply; |
| 461 | els_reply->status = FC_CTELS_STATUS_REJECT; |
| 462 | els_reply->rjt_data.action = rjt_data[3]; |
| 463 | els_reply->rjt_data.reason_code = rjt_data[2]; |
| 464 | els_reply->rjt_data.reason_explanation = rjt_data[1]; |
| 465 | els_reply->rjt_data.vendor_unique = rjt_data[0]; |
| 466 | } else |
| 467 | rc = -EIO; |
| 468 | |
| 469 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
| 470 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
| 471 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 472 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 473 | lpfc_nlp_put(ndlp); |
| 474 | kfree(dd_data); |
| 475 | /* make error code available to userspace */ |
| 476 | job->reply->result = rc; |
| 477 | job->dd_data = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 478 | /* complete the job back to userspace */ |
| 479 | job->job_done(job); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 480 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 481 | return; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 482 | } |
| 483 | |
| 484 | /** |
| 485 | * lpfc_bsg_rport_els - send an ELS command from a bsg request |
| 486 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 487 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 488 | static int |
| 489 | lpfc_bsg_rport_els(struct fc_bsg_job *job) |
| 490 | { |
| 491 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 492 | struct lpfc_hba *phba = vport->phba; |
| 493 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 494 | struct lpfc_nodelist *ndlp = rdata->pnode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 495 | uint32_t elscmd; |
| 496 | uint32_t cmdsize; |
| 497 | uint32_t rspsize; |
| 498 | struct lpfc_iocbq *rspiocbq; |
| 499 | struct lpfc_iocbq *cmdiocbq; |
| 500 | IOCB_t *rsp; |
| 501 | uint16_t rpi = 0; |
| 502 | struct lpfc_dmabuf *pcmd; |
| 503 | struct lpfc_dmabuf *prsp; |
| 504 | struct lpfc_dmabuf *pbuflist = NULL; |
| 505 | struct ulp_bde64 *bpl; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 506 | int request_nseg; |
| 507 | int reply_nseg; |
| 508 | struct scatterlist *sgel = NULL; |
| 509 | int numbde; |
| 510 | dma_addr_t busaddr; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 511 | struct bsg_job_data *dd_data; |
| 512 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 513 | int rc = 0; |
| 514 | |
| 515 | /* in case no data is transferred */ |
| 516 | job->reply->reply_payload_rcv_len = 0; |
| 517 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 518 | /* allocate our bsg tracking structure */ |
| 519 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 520 | if (!dd_data) { |
| 521 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 522 | "2735 Failed allocation of dd_data\n"); |
| 523 | rc = -ENOMEM; |
| 524 | goto no_dd_data; |
| 525 | } |
| 526 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 527 | if (!lpfc_nlp_get(ndlp)) { |
| 528 | rc = -ENODEV; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 529 | goto free_dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 530 | } |
| 531 | |
| 532 | elscmd = job->request->rqst_data.r_els.els_code; |
| 533 | cmdsize = job->request_payload.payload_len; |
| 534 | rspsize = job->reply_payload.payload_len; |
| 535 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 536 | if (!rspiocbq) { |
| 537 | lpfc_nlp_put(ndlp); |
| 538 | rc = -ENOMEM; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 539 | goto free_dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | rsp = &rspiocbq->iocb; |
| 543 | rpi = ndlp->nlp_rpi; |
| 544 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 545 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 546 | ndlp->nlp_DID, elscmd); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 547 | if (!cmdiocbq) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 548 | rc = -EIO; |
| 549 | goto free_rspiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 550 | } |
| 551 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 552 | /* prep els iocb set context1 to the ndlp, context2 to the command |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 553 | * dmabuf, context3 holds the data dmabuf |
| 554 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 555 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
| 556 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 557 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
| 558 | kfree(pcmd); |
| 559 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); |
| 560 | kfree(prsp); |
| 561 | cmdiocbq->context2 = NULL; |
| 562 | |
| 563 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
| 564 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
| 565 | |
| 566 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 567 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 568 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 569 | busaddr = sg_dma_address(sgel); |
| 570 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 571 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 572 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 573 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 574 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 575 | bpl++; |
| 576 | } |
| 577 | |
| 578 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 579 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 580 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 581 | busaddr = sg_dma_address(sgel); |
| 582 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 583 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 584 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 585 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 586 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 587 | bpl++; |
| 588 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 589 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
| 590 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 591 | cmdiocbq->iocb.ulpContext = rpi; |
| 592 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 593 | cmdiocbq->context1 = NULL; |
| 594 | cmdiocbq->context2 = NULL; |
| 595 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 596 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
| 597 | cmdiocbq->context1 = dd_data; |
| 598 | cmdiocbq->context2 = rspiocbq; |
| 599 | dd_data->type = TYPE_IOCB; |
| 600 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
| 601 | dd_data->context_un.iocb.rspiocbq = rspiocbq; |
| 602 | dd_data->context_un.iocb.set_job = job; |
Justin P. Mattock | 6eab04a | 2011-04-08 19:49:08 -0700 | [diff] [blame] | 603 | dd_data->context_un.iocb.bmp = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 604 | dd_data->context_un.iocb.ndlp = ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 605 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 606 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 607 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 608 | rc = -EIO; |
| 609 | goto linkdown_err; |
| 610 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 611 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 612 | writel(creg_val, phba->HCregaddr); |
| 613 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 614 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 615 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
| 616 | lpfc_nlp_put(ndlp); |
| 617 | if (rc == IOCB_SUCCESS) |
| 618 | return 0; /* done for now */ |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 619 | else if (rc == IOCB_BUSY) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 620 | rc = -EAGAIN; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 621 | else |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 622 | rc = -EIO; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 623 | |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 624 | linkdown_err: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 625 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 626 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 627 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 628 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 629 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 630 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 631 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 632 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 633 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 634 | free_rspiocbq: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 635 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 636 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 637 | free_dd_data: |
| 638 | kfree(dd_data); |
| 639 | |
| 640 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 641 | /* make error code available to userspace */ |
| 642 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 643 | job->dd_data = NULL; |
| 644 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 645 | } |
| 646 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 647 | /** |
| 648 | * lpfc_bsg_event_free - frees an allocated event structure |
| 649 | * @kref: Pointer to a kref. |
| 650 | * |
| 651 | * Called from kref_put. Back cast the kref into an event structure address. |
| 652 | * Free any events to get, delete associated nodes, free any events to see, |
| 653 | * free any data then free the event itself. |
| 654 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 655 | static void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 656 | lpfc_bsg_event_free(struct kref *kref) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 657 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 658 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
| 659 | kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 660 | struct event_data *ed; |
| 661 | |
| 662 | list_del(&evt->node); |
| 663 | |
| 664 | while (!list_empty(&evt->events_to_get)) { |
| 665 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); |
| 666 | list_del(&ed->node); |
| 667 | kfree(ed->data); |
| 668 | kfree(ed); |
| 669 | } |
| 670 | |
| 671 | while (!list_empty(&evt->events_to_see)) { |
| 672 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); |
| 673 | list_del(&ed->node); |
| 674 | kfree(ed->data); |
| 675 | kfree(ed); |
| 676 | } |
| 677 | |
| 678 | kfree(evt); |
| 679 | } |
| 680 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 681 | /** |
| 682 | * lpfc_bsg_event_ref - increments the kref for an event |
| 683 | * @evt: Pointer to an event structure. |
| 684 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 685 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 686 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 687 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 688 | kref_get(&evt->kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 689 | } |
| 690 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 691 | /** |
| 692 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure |
| 693 | * @evt: Pointer to an event structure. |
| 694 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 695 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 696 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 697 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 698 | kref_put(&evt->kref, lpfc_bsg_event_free); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 699 | } |
| 700 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 701 | /** |
| 702 | * lpfc_bsg_event_new - allocate and initialize a event structure |
| 703 | * @ev_mask: Mask of events. |
| 704 | * @ev_reg_id: Event reg id. |
| 705 | * @ev_req_id: Event request id. |
| 706 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 707 | static struct lpfc_bsg_event * |
| 708 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) |
| 709 | { |
| 710 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 711 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 712 | if (!evt) |
| 713 | return NULL; |
| 714 | |
| 715 | INIT_LIST_HEAD(&evt->events_to_get); |
| 716 | INIT_LIST_HEAD(&evt->events_to_see); |
| 717 | evt->type_mask = ev_mask; |
| 718 | evt->req_id = ev_req_id; |
| 719 | evt->reg_id = ev_reg_id; |
| 720 | evt->wait_time_stamp = jiffies; |
| 721 | init_waitqueue_head(&evt->wq); |
| 722 | kref_init(&evt->kref); |
| 723 | return evt; |
| 724 | } |
| 725 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 726 | /** |
| 727 | * diag_cmd_data_free - Frees an lpfc dma buffer extension |
| 728 | * @phba: Pointer to HBA context object. |
| 729 | * @mlist: Pointer to an lpfc dma buffer extension. |
| 730 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 731 | static int |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 732 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 733 | { |
| 734 | struct lpfc_dmabufext *mlast; |
| 735 | struct pci_dev *pcidev; |
| 736 | struct list_head head, *curr, *next; |
| 737 | |
| 738 | if ((!mlist) || (!lpfc_is_link_up(phba) && |
| 739 | (phba->link_flag & LS_LOOPBACK_MODE))) { |
| 740 | return 0; |
| 741 | } |
| 742 | |
| 743 | pcidev = phba->pcidev; |
| 744 | list_add_tail(&head, &mlist->dma.list); |
| 745 | |
| 746 | list_for_each_safe(curr, next, &head) { |
| 747 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); |
| 748 | if (mlast->dma.virt) |
| 749 | dma_free_coherent(&pcidev->dev, |
| 750 | mlast->size, |
| 751 | mlast->dma.virt, |
| 752 | mlast->dma.phys); |
| 753 | kfree(mlast); |
| 754 | } |
| 755 | return 0; |
| 756 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 757 | |
| 758 | /** |
| 759 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command |
| 760 | * @phba: |
| 761 | * @pring: |
| 762 | * @piocbq: |
| 763 | * |
| 764 | * This function is called when an unsolicited CT command is received. It |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 765 | * forwards the event to any processes registered to receive CT events. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 766 | **/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 767 | int |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 768 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 769 | struct lpfc_iocbq *piocbq) |
| 770 | { |
| 771 | uint32_t evt_req_id = 0; |
| 772 | uint32_t cmd; |
| 773 | uint32_t len; |
| 774 | struct lpfc_dmabuf *dmabuf = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 775 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 776 | struct event_data *evt_dat = NULL; |
| 777 | struct lpfc_iocbq *iocbq; |
| 778 | size_t offset = 0; |
| 779 | struct list_head head; |
| 780 | struct ulp_bde64 *bde; |
| 781 | dma_addr_t dma_addr; |
| 782 | int i; |
| 783 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; |
| 784 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; |
| 785 | struct lpfc_hbq_entry *hbqe; |
| 786 | struct lpfc_sli_ct_request *ct_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 787 | struct fc_bsg_job *job = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 788 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 789 | int size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 790 | |
| 791 | INIT_LIST_HEAD(&head); |
| 792 | list_add_tail(&head, &piocbq->list); |
| 793 | |
| 794 | if (piocbq->iocb.ulpBdeCount == 0 || |
| 795 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) |
| 796 | goto error_ct_unsol_exit; |
| 797 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 798 | if (phba->link_state == LPFC_HBA_ERROR || |
| 799 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) |
| 800 | goto error_ct_unsol_exit; |
| 801 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 802 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
| 803 | dmabuf = bdeBuf1; |
| 804 | else { |
| 805 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, |
| 806 | piocbq->iocb.un.cont64[0].addrLow); |
| 807 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); |
| 808 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 809 | if (dmabuf == NULL) |
| 810 | goto error_ct_unsol_exit; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 811 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
| 812 | evt_req_id = ct_req->FsType; |
| 813 | cmd = ct_req->CommandResponse.bits.CmdRsp; |
| 814 | len = ct_req->CommandResponse.bits.Size; |
| 815 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
| 816 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); |
| 817 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 818 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 819 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 820 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
| 821 | evt->req_id != evt_req_id) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 822 | continue; |
| 823 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 824 | lpfc_bsg_event_ref(evt); |
| 825 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 826 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 827 | if (evt_dat == NULL) { |
| 828 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 829 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 830 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 831 | "2614 Memory allocation failed for " |
| 832 | "CT event\n"); |
| 833 | break; |
| 834 | } |
| 835 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 836 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 837 | /* take accumulated byte count from the last iocbq */ |
| 838 | iocbq = list_entry(head.prev, typeof(*iocbq), list); |
| 839 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; |
| 840 | } else { |
| 841 | list_for_each_entry(iocbq, &head, list) { |
| 842 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) |
| 843 | evt_dat->len += |
| 844 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 849 | if (evt_dat->data == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 850 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 851 | "2615 Memory allocation failed for " |
| 852 | "CT event data, size %d\n", |
| 853 | evt_dat->len); |
| 854 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 855 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 856 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 857 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 858 | goto error_ct_unsol_exit; |
| 859 | } |
| 860 | |
| 861 | list_for_each_entry(iocbq, &head, list) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 862 | size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 863 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 864 | bdeBuf1 = iocbq->context2; |
| 865 | bdeBuf2 = iocbq->context3; |
| 866 | } |
| 867 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 868 | if (phba->sli3_options & |
| 869 | LPFC_SLI3_HBQ_ENABLED) { |
| 870 | if (i == 0) { |
| 871 | hbqe = (struct lpfc_hbq_entry *) |
| 872 | &iocbq->iocb.un.ulpWord[0]; |
| 873 | size = hbqe->bde.tus.f.bdeSize; |
| 874 | dmabuf = bdeBuf1; |
| 875 | } else if (i == 1) { |
| 876 | hbqe = (struct lpfc_hbq_entry *) |
| 877 | &iocbq->iocb.unsli3. |
| 878 | sli3Words[4]; |
| 879 | size = hbqe->bde.tus.f.bdeSize; |
| 880 | dmabuf = bdeBuf2; |
| 881 | } |
| 882 | if ((offset + size) > evt_dat->len) |
| 883 | size = evt_dat->len - offset; |
| 884 | } else { |
| 885 | size = iocbq->iocb.un.cont64[i]. |
| 886 | tus.f.bdeSize; |
| 887 | bde = &iocbq->iocb.un.cont64[i]; |
| 888 | dma_addr = getPaddr(bde->addrHigh, |
| 889 | bde->addrLow); |
| 890 | dmabuf = lpfc_sli_ringpostbuf_get(phba, |
| 891 | pring, dma_addr); |
| 892 | } |
| 893 | if (!dmabuf) { |
| 894 | lpfc_printf_log(phba, KERN_ERR, |
| 895 | LOG_LIBDFC, "2616 No dmabuf " |
| 896 | "found for iocbq 0x%p\n", |
| 897 | iocbq); |
| 898 | kfree(evt_dat->data); |
| 899 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 900 | spin_lock_irqsave(&phba->ct_ev_lock, |
| 901 | flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 902 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 903 | spin_unlock_irqrestore( |
| 904 | &phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 905 | goto error_ct_unsol_exit; |
| 906 | } |
| 907 | memcpy((char *)(evt_dat->data) + offset, |
| 908 | dmabuf->virt, size); |
| 909 | offset += size; |
| 910 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && |
| 911 | !(phba->sli3_options & |
| 912 | LPFC_SLI3_HBQ_ENABLED)) { |
| 913 | lpfc_sli_ringpostbuf_put(phba, pring, |
| 914 | dmabuf); |
| 915 | } else { |
| 916 | switch (cmd) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 917 | case ELX_LOOPBACK_DATA: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 918 | diag_cmd_data_free(phba, |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 919 | (struct lpfc_dmabufext *) |
| 920 | dmabuf); |
| 921 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 922 | case ELX_LOOPBACK_XRI_SETUP: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 923 | if ((phba->sli_rev == |
| 924 | LPFC_SLI_REV2) || |
| 925 | (phba->sli3_options & |
| 926 | LPFC_SLI3_HBQ_ENABLED |
| 927 | )) { |
| 928 | lpfc_in_buf_free(phba, |
| 929 | dmabuf); |
| 930 | } else { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 931 | lpfc_post_buffer(phba, |
| 932 | pring, |
| 933 | 1); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 934 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 935 | break; |
| 936 | default: |
| 937 | if (!(phba->sli3_options & |
| 938 | LPFC_SLI3_HBQ_ENABLED)) |
| 939 | lpfc_post_buffer(phba, |
| 940 | pring, |
| 941 | 1); |
| 942 | break; |
| 943 | } |
| 944 | } |
| 945 | } |
| 946 | } |
| 947 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 948 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 949 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 950 | evt_dat->immed_dat = phba->ctx_idx; |
| 951 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 952 | /* Provide warning for over-run of the ct_ctx array */ |
| 953 | if (phba->ct_ctx[evt_dat->immed_dat].flags & |
| 954 | UNSOL_VALID) |
| 955 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 956 | "2717 CT context array entry " |
| 957 | "[%d] over-run: oxid:x%x, " |
| 958 | "sid:x%x\n", phba->ctx_idx, |
| 959 | phba->ct_ctx[ |
| 960 | evt_dat->immed_dat].oxid, |
| 961 | phba->ct_ctx[ |
| 962 | evt_dat->immed_dat].SID); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 963 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
| 964 | piocbq->iocb.ulpContext; |
| 965 | phba->ct_ctx[evt_dat->immed_dat].SID = |
| 966 | piocbq->iocb.un.rcvels.remoteID; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 967 | phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 968 | } else |
| 969 | evt_dat->immed_dat = piocbq->iocb.ulpContext; |
| 970 | |
| 971 | evt_dat->type = FC_REG_CT_EVENT; |
| 972 | list_add(&evt_dat->node, &evt->events_to_see); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 973 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
| 974 | wake_up_interruptible(&evt->wq); |
| 975 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 976 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 977 | } |
| 978 | |
| 979 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 980 | lpfc_bsg_event_unref(evt); |
| 981 | |
| 982 | job = evt->set_job; |
| 983 | evt->set_job = NULL; |
| 984 | if (job) { |
| 985 | job->reply->reply_payload_rcv_len = size; |
| 986 | /* make error code available to userspace */ |
| 987 | job->reply->result = 0; |
| 988 | job->dd_data = NULL; |
| 989 | /* complete the job back to userspace */ |
| 990 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 991 | job->job_done(job); |
| 992 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 993 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 994 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 995 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 996 | |
| 997 | error_ct_unsol_exit: |
| 998 | if (!list_empty(&head)) |
| 999 | list_del(&head); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1000 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) |
| 1001 | return 0; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1002 | return 1; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1003 | } |
| 1004 | |
| 1005 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1006 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1007 | * @job: SET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1008 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1009 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1010 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1011 | { |
| 1012 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1013 | struct lpfc_hba *phba = vport->phba; |
| 1014 | struct set_ct_event *event_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1015 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1016 | int rc = 0; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1017 | struct bsg_job_data *dd_data = NULL; |
| 1018 | uint32_t ev_mask; |
| 1019 | unsigned long flags; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1020 | |
| 1021 | if (job->request_len < |
| 1022 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { |
| 1023 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1024 | "2612 Received SET_CT_EVENT below minimum " |
| 1025 | "size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1026 | rc = -EINVAL; |
| 1027 | goto job_error; |
| 1028 | } |
| 1029 | |
| 1030 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1031 | if (dd_data == NULL) { |
| 1032 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1033 | "2734 Failed allocation of dd_data\n"); |
| 1034 | rc = -ENOMEM; |
| 1035 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1036 | } |
| 1037 | |
| 1038 | event_req = (struct set_ct_event *) |
| 1039 | job->request->rqst_data.h_vendor.vendor_cmd; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1040 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
| 1041 | FC_REG_EVENT_MASK); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1042 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1043 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
| 1044 | if (evt->reg_id == event_req->ev_reg_id) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1045 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1046 | evt->wait_time_stamp = jiffies; |
| 1047 | break; |
| 1048 | } |
| 1049 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1050 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1051 | |
| 1052 | if (&evt->node == &phba->ct_ev_waiters) { |
| 1053 | /* no event waiting struct yet - first call */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1054 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1055 | event_req->ev_req_id); |
| 1056 | if (!evt) { |
| 1057 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1058 | "2617 Failed allocation of event " |
| 1059 | "waiter\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1060 | rc = -ENOMEM; |
| 1061 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1062 | } |
| 1063 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1064 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1065 | list_add(&evt->node, &phba->ct_ev_waiters); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1066 | lpfc_bsg_event_ref(evt); |
| 1067 | evt->wait_time_stamp = jiffies; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1068 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1069 | } |
| 1070 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1071 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1072 | evt->waiting = 1; |
| 1073 | dd_data->type = TYPE_EVT; |
| 1074 | dd_data->context_un.evt = evt; |
| 1075 | evt->set_job = job; /* for unsolicited command */ |
| 1076 | job->dd_data = dd_data; /* for fc transport timeout callback*/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1077 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1078 | return 0; /* call job done later */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1079 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1080 | job_error: |
| 1081 | if (dd_data != NULL) |
| 1082 | kfree(dd_data); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1083 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1084 | job->dd_data = NULL; |
| 1085 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1086 | } |
| 1087 | |
| 1088 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1089 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1090 | * @job: GET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1091 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1092 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1093 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1094 | { |
| 1095 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1096 | struct lpfc_hba *phba = vport->phba; |
| 1097 | struct get_ct_event *event_req; |
| 1098 | struct get_ct_event_reply *event_reply; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1099 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1100 | struct event_data *evt_dat = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1101 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1102 | uint32_t rc = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1103 | |
| 1104 | if (job->request_len < |
| 1105 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { |
| 1106 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1107 | "2613 Received GET_CT_EVENT request below " |
| 1108 | "minimum size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1109 | rc = -EINVAL; |
| 1110 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1111 | } |
| 1112 | |
| 1113 | event_req = (struct get_ct_event *) |
| 1114 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1115 | |
| 1116 | event_reply = (struct get_ct_event_reply *) |
| 1117 | job->reply->reply_data.vendor_reply.vendor_rsp; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1118 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1119 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
| 1120 | if (evt->reg_id == event_req->ev_reg_id) { |
| 1121 | if (list_empty(&evt->events_to_get)) |
| 1122 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1123 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1124 | evt->wait_time_stamp = jiffies; |
| 1125 | evt_dat = list_entry(evt->events_to_get.prev, |
| 1126 | struct event_data, node); |
| 1127 | list_del(&evt_dat->node); |
| 1128 | break; |
| 1129 | } |
| 1130 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1131 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1132 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1133 | /* The app may continue to ask for event data until it gets |
| 1134 | * an error indicating that there isn't anymore |
| 1135 | */ |
| 1136 | if (evt_dat == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1137 | job->reply->reply_payload_rcv_len = 0; |
| 1138 | rc = -ENOENT; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1139 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1140 | } |
| 1141 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1142 | if (evt_dat->len > job->request_payload.payload_len) { |
| 1143 | evt_dat->len = job->request_payload.payload_len; |
| 1144 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1145 | "2618 Truncated event data at %d " |
| 1146 | "bytes\n", |
| 1147 | job->request_payload.payload_len); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1148 | } |
| 1149 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1150 | event_reply->type = evt_dat->type; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1151 | event_reply->immed_data = evt_dat->immed_dat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1152 | if (evt_dat->len > 0) |
| 1153 | job->reply->reply_payload_rcv_len = |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1154 | sg_copy_from_buffer(job->request_payload.sg_list, |
| 1155 | job->request_payload.sg_cnt, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1156 | evt_dat->data, evt_dat->len); |
| 1157 | else |
| 1158 | job->reply->reply_payload_rcv_len = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1159 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1160 | if (evt_dat) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1161 | kfree(evt_dat->data); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1162 | kfree(evt_dat); |
| 1163 | } |
| 1164 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1165 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1166 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1167 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1168 | job->dd_data = NULL; |
| 1169 | job->reply->result = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1170 | job->job_done(job); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1171 | return 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1172 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1173 | job_error: |
| 1174 | job->dd_data = NULL; |
| 1175 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1176 | return rc; |
| 1177 | } |
| 1178 | |
| 1179 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1180 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
| 1181 | * @phba: Pointer to HBA context object. |
| 1182 | * @cmdiocbq: Pointer to command iocb. |
| 1183 | * @rspiocbq: Pointer to response iocb. |
| 1184 | * |
| 1185 | * This function is the completion handler for iocbs issued using |
| 1186 | * lpfc_issue_ct_rsp_cmp function. This function is called by the |
| 1187 | * ring event handler function without any lock held. This function |
| 1188 | * can be called from both worker thread context and interrupt |
| 1189 | * context. This function also can be called from other thread which |
| 1190 | * cleans up the SLI layer objects. |
| 1191 | * This function copy the contents of the response iocb to the |
| 1192 | * response iocb memory object provided by the caller of |
| 1193 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 1194 | * sleeps for the iocb completion. |
| 1195 | **/ |
| 1196 | static void |
| 1197 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, |
| 1198 | struct lpfc_iocbq *cmdiocbq, |
| 1199 | struct lpfc_iocbq *rspiocbq) |
| 1200 | { |
| 1201 | struct bsg_job_data *dd_data; |
| 1202 | struct fc_bsg_job *job; |
| 1203 | IOCB_t *rsp; |
| 1204 | struct lpfc_dmabuf *bmp; |
| 1205 | struct lpfc_nodelist *ndlp; |
| 1206 | unsigned long flags; |
| 1207 | int rc = 0; |
| 1208 | |
| 1209 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 1210 | dd_data = cmdiocbq->context2; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1211 | /* normal completion and timeout crossed paths, already done */ |
| 1212 | if (!dd_data) { |
Jiri Slaby | 67221a4 | 2010-03-16 16:23:58 +0100 | [diff] [blame] | 1213 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1214 | return; |
| 1215 | } |
| 1216 | |
| 1217 | job = dd_data->context_un.iocb.set_job; |
| 1218 | bmp = dd_data->context_un.iocb.bmp; |
| 1219 | rsp = &rspiocbq->iocb; |
| 1220 | ndlp = dd_data->context_un.iocb.ndlp; |
| 1221 | |
| 1222 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 1223 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1224 | |
| 1225 | if (rsp->ulpStatus) { |
| 1226 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 1227 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 1228 | case IOERR_SEQUENCE_TIMEOUT: |
| 1229 | rc = -ETIMEDOUT; |
| 1230 | break; |
| 1231 | case IOERR_INVALID_RPI: |
| 1232 | rc = -EFAULT; |
| 1233 | break; |
| 1234 | default: |
| 1235 | rc = -EACCES; |
| 1236 | break; |
| 1237 | } |
| 1238 | } else |
| 1239 | rc = -EACCES; |
| 1240 | } else |
| 1241 | job->reply->reply_payload_rcv_len = |
| 1242 | rsp->un.genreq64.bdl.bdeSize; |
| 1243 | |
| 1244 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 1245 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 1246 | lpfc_nlp_put(ndlp); |
| 1247 | kfree(bmp); |
| 1248 | kfree(dd_data); |
| 1249 | /* make error code available to userspace */ |
| 1250 | job->reply->result = rc; |
| 1251 | job->dd_data = NULL; |
| 1252 | /* complete the job back to userspace */ |
| 1253 | job->job_done(job); |
| 1254 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1255 | return; |
| 1256 | } |
| 1257 | |
| 1258 | /** |
| 1259 | * lpfc_issue_ct_rsp - issue a ct response |
| 1260 | * @phba: Pointer to HBA context object. |
| 1261 | * @job: Pointer to the job object. |
| 1262 | * @tag: tag index value into the ports context exchange array. |
| 1263 | * @bmp: Pointer to a dma buffer descriptor. |
| 1264 | * @num_entry: Number of enties in the bde. |
| 1265 | **/ |
| 1266 | static int |
| 1267 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
| 1268 | struct lpfc_dmabuf *bmp, int num_entry) |
| 1269 | { |
| 1270 | IOCB_t *icmd; |
| 1271 | struct lpfc_iocbq *ctiocb = NULL; |
| 1272 | int rc = 0; |
| 1273 | struct lpfc_nodelist *ndlp = NULL; |
| 1274 | struct bsg_job_data *dd_data; |
| 1275 | uint32_t creg_val; |
| 1276 | |
| 1277 | /* allocate our bsg tracking structure */ |
| 1278 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1279 | if (!dd_data) { |
| 1280 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1281 | "2736 Failed allocation of dd_data\n"); |
| 1282 | rc = -ENOMEM; |
| 1283 | goto no_dd_data; |
| 1284 | } |
| 1285 | |
| 1286 | /* Allocate buffer for command iocb */ |
| 1287 | ctiocb = lpfc_sli_get_iocbq(phba); |
| 1288 | if (!ctiocb) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1289 | rc = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1290 | goto no_ctiocb; |
| 1291 | } |
| 1292 | |
| 1293 | icmd = &ctiocb->iocb; |
| 1294 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
| 1295 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 1296 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 1297 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 1298 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); |
| 1299 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 1300 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 1301 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; |
| 1302 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 1303 | |
| 1304 | /* Fill in rest of iocb */ |
| 1305 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 1306 | icmd->ulpBdeCount = 1; |
| 1307 | icmd->ulpLe = 1; |
| 1308 | icmd->ulpClass = CLASS3; |
| 1309 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 1310 | /* Do not issue unsol response if oxid not marked as valid */ |
| 1311 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { |
| 1312 | rc = IOCB_ERROR; |
| 1313 | goto issue_ct_rsp_exit; |
| 1314 | } |
| 1315 | icmd->ulpContext = phba->ct_ctx[tag].oxid; |
| 1316 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
| 1317 | if (!ndlp) { |
| 1318 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 1319 | "2721 ndlp null for oxid %x SID %x\n", |
| 1320 | icmd->ulpContext, |
| 1321 | phba->ct_ctx[tag].SID); |
| 1322 | rc = IOCB_ERROR; |
| 1323 | goto issue_ct_rsp_exit; |
| 1324 | } |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1325 | |
| 1326 | /* Check if the ndlp is active */ |
| 1327 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
| 1328 | rc = -IOCB_ERROR; |
| 1329 | goto issue_ct_rsp_exit; |
| 1330 | } |
| 1331 | |
| 1332 | /* get a refernece count so the ndlp doesn't go away while |
| 1333 | * we respond |
| 1334 | */ |
| 1335 | if (!lpfc_nlp_get(ndlp)) { |
| 1336 | rc = -IOCB_ERROR; |
| 1337 | goto issue_ct_rsp_exit; |
| 1338 | } |
| 1339 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1340 | icmd->un.ulpWord[3] = ndlp->nlp_rpi; |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame^] | 1341 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 1342 | icmd->ulpContext = |
| 1343 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
| 1344 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1345 | /* The exchange is done, mark the entry as invalid */ |
| 1346 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; |
| 1347 | } else |
| 1348 | icmd->ulpContext = (ushort) tag; |
| 1349 | |
| 1350 | icmd->ulpTimeout = phba->fc_ratov * 2; |
| 1351 | |
| 1352 | /* Xmit CT response on exchange <xid> */ |
| 1353 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
| 1354 | "2722 Xmit CT response on exchange x%x Data: x%x x%x\n", |
| 1355 | icmd->ulpContext, icmd->ulpIoTag, phba->link_state); |
| 1356 | |
| 1357 | ctiocb->iocb_cmpl = NULL; |
| 1358 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; |
| 1359 | ctiocb->vport = phba->pport; |
| 1360 | ctiocb->context3 = bmp; |
| 1361 | |
| 1362 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 1363 | ctiocb->context2 = dd_data; |
| 1364 | ctiocb->context1 = ndlp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1365 | dd_data->type = TYPE_IOCB; |
| 1366 | dd_data->context_un.iocb.cmdiocbq = ctiocb; |
| 1367 | dd_data->context_un.iocb.rspiocbq = NULL; |
| 1368 | dd_data->context_un.iocb.set_job = job; |
| 1369 | dd_data->context_un.iocb.bmp = bmp; |
| 1370 | dd_data->context_un.iocb.ndlp = ndlp; |
| 1371 | |
| 1372 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 1373 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 1374 | rc = -IOCB_ERROR; |
| 1375 | goto issue_ct_rsp_exit; |
| 1376 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1377 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 1378 | writel(creg_val, phba->HCregaddr); |
| 1379 | readl(phba->HCregaddr); /* flush */ |
| 1380 | } |
| 1381 | |
| 1382 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
| 1383 | |
| 1384 | if (rc == IOCB_SUCCESS) |
| 1385 | return 0; /* done for now */ |
| 1386 | |
| 1387 | issue_ct_rsp_exit: |
| 1388 | lpfc_sli_release_iocbq(phba, ctiocb); |
| 1389 | no_ctiocb: |
| 1390 | kfree(dd_data); |
| 1391 | no_dd_data: |
| 1392 | return rc; |
| 1393 | } |
| 1394 | |
| 1395 | /** |
| 1396 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
| 1397 | * @job: SEND_MGMT_RESP fc_bsg_job |
| 1398 | **/ |
| 1399 | static int |
| 1400 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) |
| 1401 | { |
| 1402 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1403 | struct lpfc_hba *phba = vport->phba; |
| 1404 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) |
| 1405 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1406 | struct ulp_bde64 *bpl; |
| 1407 | struct lpfc_dmabuf *bmp = NULL; |
| 1408 | struct scatterlist *sgel = NULL; |
| 1409 | int request_nseg; |
| 1410 | int numbde; |
| 1411 | dma_addr_t busaddr; |
| 1412 | uint32_t tag = mgmt_resp->tag; |
| 1413 | unsigned long reqbfrcnt = |
| 1414 | (unsigned long)job->request_payload.payload_len; |
| 1415 | int rc = 0; |
| 1416 | |
| 1417 | /* in case no data is transferred */ |
| 1418 | job->reply->reply_payload_rcv_len = 0; |
| 1419 | |
| 1420 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { |
| 1421 | rc = -ERANGE; |
| 1422 | goto send_mgmt_rsp_exit; |
| 1423 | } |
| 1424 | |
| 1425 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 1426 | if (!bmp) { |
| 1427 | rc = -ENOMEM; |
| 1428 | goto send_mgmt_rsp_exit; |
| 1429 | } |
| 1430 | |
| 1431 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 1432 | if (!bmp->virt) { |
| 1433 | rc = -ENOMEM; |
| 1434 | goto send_mgmt_rsp_free_bmp; |
| 1435 | } |
| 1436 | |
| 1437 | INIT_LIST_HEAD(&bmp->list); |
| 1438 | bpl = (struct ulp_bde64 *) bmp->virt; |
| 1439 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 1440 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1441 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 1442 | busaddr = sg_dma_address(sgel); |
| 1443 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 1444 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 1445 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 1446 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 1447 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 1448 | bpl++; |
| 1449 | } |
| 1450 | |
| 1451 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
| 1452 | |
| 1453 | if (rc == IOCB_SUCCESS) |
| 1454 | return 0; /* done for now */ |
| 1455 | |
| 1456 | /* TBD need to handle a timeout */ |
| 1457 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 1458 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1459 | rc = -EACCES; |
| 1460 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 1461 | |
| 1462 | send_mgmt_rsp_free_bmp: |
| 1463 | kfree(bmp); |
| 1464 | send_mgmt_rsp_exit: |
| 1465 | /* make error code available to userspace */ |
| 1466 | job->reply->result = rc; |
| 1467 | job->dd_data = NULL; |
| 1468 | return rc; |
| 1469 | } |
| 1470 | |
| 1471 | /** |
| 1472 | * lpfc_bsg_diag_mode - process a LPFC_BSG_VENDOR_DIAG_MODE bsg vendor command |
| 1473 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 1474 | * |
| 1475 | * This function is responsible for placing a port into diagnostic loopback |
| 1476 | * mode in order to perform a diagnostic loopback test. |
| 1477 | * All new scsi requests are blocked, a small delay is used to allow the |
| 1478 | * scsi requests to complete then the link is brought down. If the link is |
| 1479 | * is placed in loopback mode then scsi requests are again allowed |
| 1480 | * so the scsi mid-layer doesn't give up on the port. |
| 1481 | * All of this is done in-line. |
| 1482 | */ |
| 1483 | static int |
| 1484 | lpfc_bsg_diag_mode(struct fc_bsg_job *job) |
| 1485 | { |
| 1486 | struct Scsi_Host *shost = job->shost; |
| 1487 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1488 | struct lpfc_hba *phba = vport->phba; |
| 1489 | struct diag_mode_set *loopback_mode; |
| 1490 | struct lpfc_sli *psli = &phba->sli; |
| 1491 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; |
| 1492 | uint32_t link_flags; |
| 1493 | uint32_t timeout; |
| 1494 | struct lpfc_vport **vports; |
| 1495 | LPFC_MBOXQ_t *pmboxq; |
| 1496 | int mbxstatus; |
| 1497 | int i = 0; |
| 1498 | int rc = 0; |
| 1499 | |
| 1500 | /* no data to return just the return code */ |
| 1501 | job->reply->reply_payload_rcv_len = 0; |
| 1502 | |
| 1503 | if (job->request_len < |
| 1504 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_set)) { |
| 1505 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1506 | "2738 Received DIAG MODE request below minimum " |
| 1507 | "size\n"); |
| 1508 | rc = -EINVAL; |
| 1509 | goto job_error; |
| 1510 | } |
| 1511 | |
| 1512 | loopback_mode = (struct diag_mode_set *) |
| 1513 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1514 | link_flags = loopback_mode->type; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 1515 | timeout = loopback_mode->timeout * 100; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1516 | |
| 1517 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 1518 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 1519 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { |
| 1520 | rc = -EACCES; |
| 1521 | goto job_error; |
| 1522 | } |
| 1523 | |
| 1524 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1525 | if (!pmboxq) { |
| 1526 | rc = -ENOMEM; |
| 1527 | goto job_error; |
| 1528 | } |
| 1529 | |
| 1530 | vports = lpfc_create_vport_work_array(phba); |
| 1531 | if (vports) { |
| 1532 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1533 | shost = lpfc_shost_from_vport(vports[i]); |
| 1534 | scsi_block_requests(shost); |
| 1535 | } |
| 1536 | |
| 1537 | lpfc_destroy_vport_work_array(phba, vports); |
| 1538 | } else { |
| 1539 | shost = lpfc_shost_from_vport(phba->pport); |
| 1540 | scsi_block_requests(shost); |
| 1541 | } |
| 1542 | |
| 1543 | while (pring->txcmplq_cnt) { |
| 1544 | if (i++ > 500) /* wait up to 5 seconds */ |
| 1545 | break; |
| 1546 | |
| 1547 | msleep(10); |
| 1548 | } |
| 1549 | |
| 1550 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1551 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; |
| 1552 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1553 | |
| 1554 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1555 | |
| 1556 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { |
| 1557 | /* wait for link down before proceeding */ |
| 1558 | i = 0; |
| 1559 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 1560 | if (i++ > timeout) { |
| 1561 | rc = -ETIMEDOUT; |
| 1562 | goto loopback_mode_exit; |
| 1563 | } |
| 1564 | |
| 1565 | msleep(10); |
| 1566 | } |
| 1567 | |
| 1568 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1569 | if (link_flags == INTERNAL_LOOP_BACK) |
| 1570 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; |
| 1571 | else |
| 1572 | pmboxq->u.mb.un.varInitLnk.link_flags = |
| 1573 | FLAGS_TOPOLOGY_MODE_LOOP; |
| 1574 | |
| 1575 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; |
| 1576 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1577 | |
| 1578 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, |
| 1579 | LPFC_MBOX_TMO); |
| 1580 | |
| 1581 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) |
| 1582 | rc = -ENODEV; |
| 1583 | else { |
| 1584 | phba->link_flag |= LS_LOOPBACK_MODE; |
| 1585 | /* wait for the link attention interrupt */ |
| 1586 | msleep(100); |
| 1587 | |
| 1588 | i = 0; |
| 1589 | while (phba->link_state != LPFC_HBA_READY) { |
| 1590 | if (i++ > timeout) { |
| 1591 | rc = -ETIMEDOUT; |
| 1592 | break; |
| 1593 | } |
| 1594 | |
| 1595 | msleep(10); |
| 1596 | } |
| 1597 | } |
| 1598 | |
| 1599 | } else |
| 1600 | rc = -ENODEV; |
| 1601 | |
| 1602 | loopback_mode_exit: |
| 1603 | vports = lpfc_create_vport_work_array(phba); |
| 1604 | if (vports) { |
| 1605 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1606 | shost = lpfc_shost_from_vport(vports[i]); |
| 1607 | scsi_unblock_requests(shost); |
| 1608 | } |
| 1609 | lpfc_destroy_vport_work_array(phba, vports); |
| 1610 | } else { |
| 1611 | shost = lpfc_shost_from_vport(phba->pport); |
| 1612 | scsi_unblock_requests(shost); |
| 1613 | } |
| 1614 | |
| 1615 | /* |
| 1616 | * Let SLI layer release mboxq if mbox command completed after timeout. |
| 1617 | */ |
| 1618 | if (mbxstatus != MBX_TIMEOUT) |
| 1619 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1620 | |
| 1621 | job_error: |
| 1622 | /* make error code available to userspace */ |
| 1623 | job->reply->result = rc; |
| 1624 | /* complete the job back to userspace if no error */ |
| 1625 | if (rc == 0) |
| 1626 | job->job_done(job); |
| 1627 | return rc; |
| 1628 | } |
| 1629 | |
| 1630 | /** |
| 1631 | * lpfcdiag_loop_self_reg - obtains a remote port login id |
| 1632 | * @phba: Pointer to HBA context object |
| 1633 | * @rpi: Pointer to a remote port login id |
| 1634 | * |
| 1635 | * This function obtains a remote port login id so the diag loopback test |
| 1636 | * can send and receive its own unsolicited CT command. |
| 1637 | **/ |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1638 | static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1639 | { |
| 1640 | LPFC_MBOXQ_t *mbox; |
| 1641 | struct lpfc_dmabuf *dmabuff; |
| 1642 | int status; |
| 1643 | |
| 1644 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1645 | if (!mbox) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1646 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1647 | |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1648 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 1649 | *rpi = lpfc_sli4_alloc_rpi(phba); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1650 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1651 | (uint8_t *)&phba->pport->fc_sparam, mbox, *rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1652 | if (status) { |
| 1653 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1654 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 1655 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1656 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1657 | } |
| 1658 | |
| 1659 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; |
| 1660 | mbox->context1 = NULL; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1661 | mbox->context2 = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1662 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 1663 | |
| 1664 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 1665 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 1666 | kfree(dmabuff); |
| 1667 | if (status != MBX_TIMEOUT) |
| 1668 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1669 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 1670 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1671 | return -ENODEV; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1672 | } |
| 1673 | |
| 1674 | *rpi = mbox->u.mb.un.varWords[0]; |
| 1675 | |
| 1676 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 1677 | kfree(dmabuff); |
| 1678 | mempool_free(mbox, phba->mbox_mem_pool); |
| 1679 | return 0; |
| 1680 | } |
| 1681 | |
| 1682 | /** |
| 1683 | * lpfcdiag_loop_self_unreg - unregs from the rpi |
| 1684 | * @phba: Pointer to HBA context object |
| 1685 | * @rpi: Remote port login id |
| 1686 | * |
| 1687 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg |
| 1688 | **/ |
| 1689 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) |
| 1690 | { |
| 1691 | LPFC_MBOXQ_t *mbox; |
| 1692 | int status; |
| 1693 | |
| 1694 | /* Allocate mboxq structure */ |
| 1695 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1696 | if (mbox == NULL) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1697 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1698 | |
| 1699 | lpfc_unreg_login(phba, 0, rpi, mbox); |
| 1700 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 1701 | |
| 1702 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 1703 | if (status != MBX_TIMEOUT) |
| 1704 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1705 | return -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1706 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1707 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 1708 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 1709 | lpfc_sli4_free_rpi(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1710 | return 0; |
| 1711 | } |
| 1712 | |
| 1713 | /** |
| 1714 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids |
| 1715 | * @phba: Pointer to HBA context object |
| 1716 | * @rpi: Remote port login id |
| 1717 | * @txxri: Pointer to transmit exchange id |
| 1718 | * @rxxri: Pointer to response exchabge id |
| 1719 | * |
| 1720 | * This function obtains the transmit and receive ids required to send |
| 1721 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp |
| 1722 | * flags are used to the unsolicted response handler is able to process |
| 1723 | * the ct command sent on the same port. |
| 1724 | **/ |
| 1725 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, |
| 1726 | uint16_t *txxri, uint16_t * rxxri) |
| 1727 | { |
| 1728 | struct lpfc_bsg_event *evt; |
| 1729 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 1730 | IOCB_t *cmd, *rsp; |
| 1731 | struct lpfc_dmabuf *dmabuf; |
| 1732 | struct ulp_bde64 *bpl = NULL; |
| 1733 | struct lpfc_sli_ct_request *ctreq = NULL; |
| 1734 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1735 | int time_left; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 1736 | int iocb_stat = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1737 | unsigned long flags; |
| 1738 | |
| 1739 | *txxri = 0; |
| 1740 | *rxxri = 0; |
| 1741 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 1742 | SLI_CT_ELX_LOOPBACK); |
| 1743 | if (!evt) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1744 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1745 | |
| 1746 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 1747 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 1748 | lpfc_bsg_event_ref(evt); |
| 1749 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1750 | |
| 1751 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 1752 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 1753 | |
| 1754 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 1755 | if (dmabuf) { |
| 1756 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 1757 | if (dmabuf->virt) { |
| 1758 | INIT_LIST_HEAD(&dmabuf->list); |
| 1759 | bpl = (struct ulp_bde64 *) dmabuf->virt; |
| 1760 | memset(bpl, 0, sizeof(*bpl)); |
| 1761 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); |
| 1762 | bpl->addrHigh = |
| 1763 | le32_to_cpu(putPaddrHigh(dmabuf->phys + |
| 1764 | sizeof(*bpl))); |
| 1765 | bpl->addrLow = |
| 1766 | le32_to_cpu(putPaddrLow(dmabuf->phys + |
| 1767 | sizeof(*bpl))); |
| 1768 | bpl->tus.f.bdeFlags = 0; |
| 1769 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; |
| 1770 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 1771 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1772 | } |
| 1773 | |
| 1774 | if (cmdiocbq == NULL || rspiocbq == NULL || |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 1775 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
| 1776 | dmabuf->virt == NULL) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1777 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1778 | goto err_get_xri_exit; |
| 1779 | } |
| 1780 | |
| 1781 | cmd = &cmdiocbq->iocb; |
| 1782 | rsp = &rspiocbq->iocb; |
| 1783 | |
| 1784 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 1785 | |
| 1786 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 1787 | ctreq->RevisionId.bits.InId = 0; |
| 1788 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 1789 | ctreq->FsSubType = 0; |
| 1790 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; |
| 1791 | ctreq->CommandResponse.bits.Size = 0; |
| 1792 | |
| 1793 | |
| 1794 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); |
| 1795 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); |
| 1796 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 1797 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); |
| 1798 | |
| 1799 | cmd->un.xseq64.w5.hcsw.Fctl = LA; |
| 1800 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 1801 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 1802 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 1803 | |
| 1804 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; |
| 1805 | cmd->ulpBdeCount = 1; |
| 1806 | cmd->ulpLe = 1; |
| 1807 | cmd->ulpClass = CLASS3; |
| 1808 | cmd->ulpContext = rpi; |
| 1809 | |
| 1810 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 1811 | cmdiocbq->vport = phba->pport; |
| 1812 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1813 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1814 | rspiocbq, |
| 1815 | (phba->fc_ratov * 2) |
| 1816 | + LPFC_DRVR_TIMEOUT); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1817 | if (iocb_stat) { |
| 1818 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1819 | goto err_get_xri_exit; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1820 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1821 | *txxri = rsp->ulpContext; |
| 1822 | |
| 1823 | evt->waiting = 1; |
| 1824 | evt->wait_time_stamp = jiffies; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1825 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1826 | evt->wq, !list_empty(&evt->events_to_see), |
| 1827 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); |
| 1828 | if (list_empty(&evt->events_to_see)) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1829 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1830 | else { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1831 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 1832 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 1833 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1834 | *rxxri = (list_entry(evt->events_to_get.prev, |
| 1835 | typeof(struct event_data), |
| 1836 | node))->immed_dat; |
| 1837 | } |
| 1838 | evt->waiting = 0; |
| 1839 | |
| 1840 | err_get_xri_exit: |
| 1841 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 1842 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 1843 | lpfc_bsg_event_unref(evt); /* delete */ |
| 1844 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1845 | |
| 1846 | if (dmabuf) { |
| 1847 | if (dmabuf->virt) |
| 1848 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); |
| 1849 | kfree(dmabuf); |
| 1850 | } |
| 1851 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1852 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1853 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 1854 | if (rspiocbq) |
| 1855 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 1856 | return ret_val; |
| 1857 | } |
| 1858 | |
| 1859 | /** |
| 1860 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers |
| 1861 | * @phba: Pointer to HBA context object |
| 1862 | * @bpl: Pointer to 64 bit bde structure |
| 1863 | * @size: Number of bytes to process |
| 1864 | * @nocopydata: Flag to copy user data into the allocated buffer |
| 1865 | * |
| 1866 | * This function allocates page size buffers and populates an lpfc_dmabufext. |
| 1867 | * If allowed the user data pointed to with indataptr is copied into the kernel |
| 1868 | * memory. The chained list of page size buffers is returned. |
| 1869 | **/ |
| 1870 | static struct lpfc_dmabufext * |
| 1871 | diag_cmd_data_alloc(struct lpfc_hba *phba, |
| 1872 | struct ulp_bde64 *bpl, uint32_t size, |
| 1873 | int nocopydata) |
| 1874 | { |
| 1875 | struct lpfc_dmabufext *mlist = NULL; |
| 1876 | struct lpfc_dmabufext *dmp; |
| 1877 | int cnt, offset = 0, i = 0; |
| 1878 | struct pci_dev *pcidev; |
| 1879 | |
| 1880 | pcidev = phba->pcidev; |
| 1881 | |
| 1882 | while (size) { |
| 1883 | /* We get chunks of 4K */ |
| 1884 | if (size > BUF_SZ_4K) |
| 1885 | cnt = BUF_SZ_4K; |
| 1886 | else |
| 1887 | cnt = size; |
| 1888 | |
| 1889 | /* allocate struct lpfc_dmabufext buffer header */ |
| 1890 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); |
| 1891 | if (!dmp) |
| 1892 | goto out; |
| 1893 | |
| 1894 | INIT_LIST_HEAD(&dmp->dma.list); |
| 1895 | |
| 1896 | /* Queue it to a linked list */ |
| 1897 | if (mlist) |
| 1898 | list_add_tail(&dmp->dma.list, &mlist->dma.list); |
| 1899 | else |
| 1900 | mlist = dmp; |
| 1901 | |
| 1902 | /* allocate buffer */ |
| 1903 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, |
| 1904 | cnt, |
| 1905 | &(dmp->dma.phys), |
| 1906 | GFP_KERNEL); |
| 1907 | |
| 1908 | if (!dmp->dma.virt) |
| 1909 | goto out; |
| 1910 | |
| 1911 | dmp->size = cnt; |
| 1912 | |
| 1913 | if (nocopydata) { |
| 1914 | bpl->tus.f.bdeFlags = 0; |
| 1915 | pci_dma_sync_single_for_device(phba->pcidev, |
| 1916 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); |
| 1917 | |
| 1918 | } else { |
| 1919 | memset((uint8_t *)dmp->dma.virt, 0, cnt); |
| 1920 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 1921 | } |
| 1922 | |
| 1923 | /* build buffer ptr list for IOCB */ |
| 1924 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); |
| 1925 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); |
| 1926 | bpl->tus.f.bdeSize = (ushort) cnt; |
| 1927 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 1928 | bpl++; |
| 1929 | |
| 1930 | i++; |
| 1931 | offset += cnt; |
| 1932 | size -= cnt; |
| 1933 | } |
| 1934 | |
| 1935 | mlist->flag = i; |
| 1936 | return mlist; |
| 1937 | out: |
| 1938 | diag_cmd_data_free(phba, mlist); |
| 1939 | return NULL; |
| 1940 | } |
| 1941 | |
| 1942 | /** |
| 1943 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd |
| 1944 | * @phba: Pointer to HBA context object |
| 1945 | * @rxxri: Receive exchange id |
| 1946 | * @len: Number of data bytes |
| 1947 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1948 | * This function allocates and posts a data buffer of sufficient size to receive |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1949 | * an unsolicted CT command. |
| 1950 | **/ |
| 1951 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, |
| 1952 | size_t len) |
| 1953 | { |
| 1954 | struct lpfc_sli *psli = &phba->sli; |
| 1955 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; |
| 1956 | struct lpfc_iocbq *cmdiocbq; |
| 1957 | IOCB_t *cmd = NULL; |
| 1958 | struct list_head head, *curr, *next; |
| 1959 | struct lpfc_dmabuf *rxbmp; |
| 1960 | struct lpfc_dmabuf *dmp; |
| 1961 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; |
| 1962 | struct ulp_bde64 *rxbpl = NULL; |
| 1963 | uint32_t num_bde; |
| 1964 | struct lpfc_dmabufext *rxbuffer = NULL; |
| 1965 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1966 | int iocb_stat; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1967 | int i = 0; |
| 1968 | |
| 1969 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 1970 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 1971 | if (rxbmp != NULL) { |
| 1972 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 1973 | if (rxbmp->virt) { |
| 1974 | INIT_LIST_HEAD(&rxbmp->list); |
| 1975 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 1976 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); |
| 1977 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1978 | } |
| 1979 | |
| 1980 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1981 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1982 | goto err_post_rxbufs_exit; |
| 1983 | } |
| 1984 | |
| 1985 | /* Queue buffers for the receive exchange */ |
| 1986 | num_bde = (uint32_t)rxbuffer->flag; |
| 1987 | dmp = &rxbuffer->dma; |
| 1988 | |
| 1989 | cmd = &cmdiocbq->iocb; |
| 1990 | i = 0; |
| 1991 | |
| 1992 | INIT_LIST_HEAD(&head); |
| 1993 | list_add_tail(&head, &dmp->list); |
| 1994 | list_for_each_safe(curr, next, &head) { |
| 1995 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); |
| 1996 | list_del(curr); |
| 1997 | |
| 1998 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 1999 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); |
| 2000 | cmd->un.quexri64cx.buff.bde.addrHigh = |
| 2001 | putPaddrHigh(mp[i]->phys); |
| 2002 | cmd->un.quexri64cx.buff.bde.addrLow = |
| 2003 | putPaddrLow(mp[i]->phys); |
| 2004 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = |
| 2005 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2006 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; |
| 2007 | cmd->ulpCommand = CMD_QUE_XRI64_CX; |
| 2008 | cmd->ulpPU = 0; |
| 2009 | cmd->ulpLe = 1; |
| 2010 | cmd->ulpBdeCount = 1; |
| 2011 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; |
| 2012 | |
| 2013 | } else { |
| 2014 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); |
| 2015 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); |
| 2016 | cmd->un.cont64[i].tus.f.bdeSize = |
| 2017 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2018 | cmd->ulpBdeCount = ++i; |
| 2019 | |
| 2020 | if ((--num_bde > 0) && (i < 2)) |
| 2021 | continue; |
| 2022 | |
| 2023 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; |
| 2024 | cmd->ulpLe = 1; |
| 2025 | } |
| 2026 | |
| 2027 | cmd->ulpClass = CLASS3; |
| 2028 | cmd->ulpContext = rxxri; |
| 2029 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2030 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 2031 | 0); |
| 2032 | if (iocb_stat == IOCB_ERROR) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2033 | diag_cmd_data_free(phba, |
| 2034 | (struct lpfc_dmabufext *)mp[0]); |
| 2035 | if (mp[1]) |
| 2036 | diag_cmd_data_free(phba, |
| 2037 | (struct lpfc_dmabufext *)mp[1]); |
| 2038 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2039 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2040 | goto err_post_rxbufs_exit; |
| 2041 | } |
| 2042 | |
| 2043 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); |
| 2044 | if (mp[1]) { |
| 2045 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); |
| 2046 | mp[1] = NULL; |
| 2047 | } |
| 2048 | |
| 2049 | /* The iocb was freed by lpfc_sli_issue_iocb */ |
| 2050 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2051 | if (!cmdiocbq) { |
| 2052 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2053 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2054 | goto err_post_rxbufs_exit; |
| 2055 | } |
| 2056 | |
| 2057 | cmd = &cmdiocbq->iocb; |
| 2058 | i = 0; |
| 2059 | } |
| 2060 | list_del(&head); |
| 2061 | |
| 2062 | err_post_rxbufs_exit: |
| 2063 | |
| 2064 | if (rxbmp) { |
| 2065 | if (rxbmp->virt) |
| 2066 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); |
| 2067 | kfree(rxbmp); |
| 2068 | } |
| 2069 | |
| 2070 | if (cmdiocbq) |
| 2071 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2072 | return ret_val; |
| 2073 | } |
| 2074 | |
| 2075 | /** |
| 2076 | * lpfc_bsg_diag_test - with a port in loopback issues a Ct cmd to itself |
| 2077 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
| 2078 | * |
| 2079 | * This function receives a user data buffer to be transmitted and received on |
| 2080 | * the same port, the link must be up and in loopback mode prior |
| 2081 | * to being called. |
| 2082 | * 1. A kernel buffer is allocated to copy the user data into. |
| 2083 | * 2. The port registers with "itself". |
| 2084 | * 3. The transmit and receive exchange ids are obtained. |
| 2085 | * 4. The receive exchange id is posted. |
| 2086 | * 5. A new els loopback event is created. |
| 2087 | * 6. The command and response iocbs are allocated. |
| 2088 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. |
| 2089 | * |
| 2090 | * This function is meant to be called n times while the port is in loopback |
| 2091 | * so it is the apps responsibility to issue a reset to take the port out |
| 2092 | * of loopback mode. |
| 2093 | **/ |
| 2094 | static int |
| 2095 | lpfc_bsg_diag_test(struct fc_bsg_job *job) |
| 2096 | { |
| 2097 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2098 | struct lpfc_hba *phba = vport->phba; |
| 2099 | struct diag_mode_test *diag_mode; |
| 2100 | struct lpfc_bsg_event *evt; |
| 2101 | struct event_data *evdat; |
| 2102 | struct lpfc_sli *psli = &phba->sli; |
| 2103 | uint32_t size; |
| 2104 | uint32_t full_size; |
| 2105 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2106 | uint16_t rpi = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2107 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 2108 | IOCB_t *cmd, *rsp; |
| 2109 | struct lpfc_sli_ct_request *ctreq; |
| 2110 | struct lpfc_dmabuf *txbmp; |
| 2111 | struct ulp_bde64 *txbpl = NULL; |
| 2112 | struct lpfc_dmabufext *txbuffer = NULL; |
| 2113 | struct list_head head; |
| 2114 | struct lpfc_dmabuf *curr; |
| 2115 | uint16_t txxri, rxxri; |
| 2116 | uint32_t num_bde; |
| 2117 | uint8_t *ptr = NULL, *rx_databuf = NULL; |
| 2118 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2119 | int time_left; |
| 2120 | int iocb_stat; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2121 | unsigned long flags; |
| 2122 | void *dataout = NULL; |
| 2123 | uint32_t total_mem; |
| 2124 | |
| 2125 | /* in case no data is returned return just the return code */ |
| 2126 | job->reply->reply_payload_rcv_len = 0; |
| 2127 | |
| 2128 | if (job->request_len < |
| 2129 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { |
| 2130 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2131 | "2739 Received DIAG TEST request below minimum " |
| 2132 | "size\n"); |
| 2133 | rc = -EINVAL; |
| 2134 | goto loopback_test_exit; |
| 2135 | } |
| 2136 | |
| 2137 | if (job->request_payload.payload_len != |
| 2138 | job->reply_payload.payload_len) { |
| 2139 | rc = -EINVAL; |
| 2140 | goto loopback_test_exit; |
| 2141 | } |
| 2142 | |
| 2143 | diag_mode = (struct diag_mode_test *) |
| 2144 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2145 | |
| 2146 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 2147 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 2148 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { |
| 2149 | rc = -EACCES; |
| 2150 | goto loopback_test_exit; |
| 2151 | } |
| 2152 | |
| 2153 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { |
| 2154 | rc = -EACCES; |
| 2155 | goto loopback_test_exit; |
| 2156 | } |
| 2157 | |
| 2158 | size = job->request_payload.payload_len; |
| 2159 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ |
| 2160 | |
| 2161 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { |
| 2162 | rc = -ERANGE; |
| 2163 | goto loopback_test_exit; |
| 2164 | } |
| 2165 | |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 2166 | if (full_size >= BUF_SZ_4K) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2167 | /* |
| 2168 | * Allocate memory for ioctl data. If buffer is bigger than 64k, |
| 2169 | * then we allocate 64k and re-use that buffer over and over to |
| 2170 | * xfer the whole block. This is because Linux kernel has a |
| 2171 | * problem allocating more than 120k of kernel space memory. Saw |
| 2172 | * problem with GET_FCPTARGETMAPPING... |
| 2173 | */ |
| 2174 | if (size <= (64 * 1024)) |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 2175 | total_mem = full_size; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2176 | else |
| 2177 | total_mem = 64 * 1024; |
| 2178 | } else |
| 2179 | /* Allocate memory for ioctl data */ |
| 2180 | total_mem = BUF_SZ_4K; |
| 2181 | |
| 2182 | dataout = kmalloc(total_mem, GFP_KERNEL); |
| 2183 | if (dataout == NULL) { |
| 2184 | rc = -ENOMEM; |
| 2185 | goto loopback_test_exit; |
| 2186 | } |
| 2187 | |
| 2188 | ptr = dataout; |
| 2189 | ptr += ELX_LOOPBACK_HEADER_SZ; |
| 2190 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 2191 | job->request_payload.sg_cnt, |
| 2192 | ptr, size); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2193 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2194 | if (rc) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2195 | goto loopback_test_exit; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2196 | |
| 2197 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); |
| 2198 | if (rc) { |
| 2199 | lpfcdiag_loop_self_unreg(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2200 | goto loopback_test_exit; |
| 2201 | } |
| 2202 | |
| 2203 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
| 2204 | if (rc) { |
| 2205 | lpfcdiag_loop_self_unreg(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2206 | goto loopback_test_exit; |
| 2207 | } |
| 2208 | |
| 2209 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 2210 | SLI_CT_ELX_LOOPBACK); |
| 2211 | if (!evt) { |
| 2212 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 2213 | rc = -ENOMEM; |
| 2214 | goto loopback_test_exit; |
| 2215 | } |
| 2216 | |
| 2217 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2218 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 2219 | lpfc_bsg_event_ref(evt); |
| 2220 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2221 | |
| 2222 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2223 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 2224 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2225 | |
| 2226 | if (txbmp) { |
| 2227 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2228 | if (txbmp->virt) { |
| 2229 | INIT_LIST_HEAD(&txbmp->list); |
| 2230 | txbpl = (struct ulp_bde64 *) txbmp->virt; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2231 | txbuffer = diag_cmd_data_alloc(phba, |
| 2232 | txbpl, full_size, 0); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2233 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2234 | } |
| 2235 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2236 | if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer || |
| 2237 | !txbmp->virt) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2238 | rc = -ENOMEM; |
| 2239 | goto err_loopback_test_exit; |
| 2240 | } |
| 2241 | |
| 2242 | cmd = &cmdiocbq->iocb; |
| 2243 | rsp = &rspiocbq->iocb; |
| 2244 | |
| 2245 | INIT_LIST_HEAD(&head); |
| 2246 | list_add_tail(&head, &txbuffer->dma.list); |
| 2247 | list_for_each_entry(curr, &head, list) { |
| 2248 | segment_len = ((struct lpfc_dmabufext *)curr)->size; |
| 2249 | if (current_offset == 0) { |
| 2250 | ctreq = curr->virt; |
| 2251 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 2252 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 2253 | ctreq->RevisionId.bits.InId = 0; |
| 2254 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 2255 | ctreq->FsSubType = 0; |
| 2256 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; |
| 2257 | ctreq->CommandResponse.bits.Size = size; |
| 2258 | segment_offset = ELX_LOOPBACK_HEADER_SZ; |
| 2259 | } else |
| 2260 | segment_offset = 0; |
| 2261 | |
| 2262 | BUG_ON(segment_offset >= segment_len); |
| 2263 | memcpy(curr->virt + segment_offset, |
| 2264 | ptr + current_offset, |
| 2265 | segment_len - segment_offset); |
| 2266 | |
| 2267 | current_offset += segment_len - segment_offset; |
| 2268 | BUG_ON(current_offset > size); |
| 2269 | } |
| 2270 | list_del(&head); |
| 2271 | |
| 2272 | /* Build the XMIT_SEQUENCE iocb */ |
| 2273 | |
| 2274 | num_bde = (uint32_t)txbuffer->flag; |
| 2275 | |
| 2276 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); |
| 2277 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); |
| 2278 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 2279 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); |
| 2280 | |
| 2281 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 2282 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 2283 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 2284 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 2285 | |
| 2286 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 2287 | cmd->ulpBdeCount = 1; |
| 2288 | cmd->ulpLe = 1; |
| 2289 | cmd->ulpClass = CLASS3; |
| 2290 | cmd->ulpContext = txxri; |
| 2291 | |
| 2292 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 2293 | cmdiocbq->vport = phba->pport; |
| 2294 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2295 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
| 2296 | rspiocbq, (phba->fc_ratov * 2) + |
| 2297 | LPFC_DRVR_TIMEOUT); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2298 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2299 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2300 | rc = -EIO; |
| 2301 | goto err_loopback_test_exit; |
| 2302 | } |
| 2303 | |
| 2304 | evt->waiting = 1; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2305 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2306 | evt->wq, !list_empty(&evt->events_to_see), |
| 2307 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); |
| 2308 | evt->waiting = 0; |
| 2309 | if (list_empty(&evt->events_to_see)) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2310 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2311 | else { |
| 2312 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2313 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 2314 | evdat = list_entry(evt->events_to_get.prev, |
| 2315 | typeof(*evdat), node); |
| 2316 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2317 | rx_databuf = evdat->data; |
| 2318 | if (evdat->len != full_size) { |
| 2319 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 2320 | "1603 Loopback test did not receive expected " |
| 2321 | "data length. actual length 0x%x expected " |
| 2322 | "length 0x%x\n", |
| 2323 | evdat->len, full_size); |
| 2324 | rc = -EIO; |
| 2325 | } else if (rx_databuf == NULL) |
| 2326 | rc = -EIO; |
| 2327 | else { |
| 2328 | rc = IOCB_SUCCESS; |
| 2329 | /* skip over elx loopback header */ |
| 2330 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; |
| 2331 | job->reply->reply_payload_rcv_len = |
| 2332 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 2333 | job->reply_payload.sg_cnt, |
| 2334 | rx_databuf, size); |
| 2335 | job->reply->reply_payload_rcv_len = size; |
| 2336 | } |
| 2337 | } |
| 2338 | |
| 2339 | err_loopback_test_exit: |
| 2340 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 2341 | |
| 2342 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2343 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 2344 | lpfc_bsg_event_unref(evt); /* delete */ |
| 2345 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2346 | |
| 2347 | if (cmdiocbq != NULL) |
| 2348 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2349 | |
| 2350 | if (rspiocbq != NULL) |
| 2351 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 2352 | |
| 2353 | if (txbmp != NULL) { |
| 2354 | if (txbpl != NULL) { |
| 2355 | if (txbuffer != NULL) |
| 2356 | diag_cmd_data_free(phba, txbuffer); |
| 2357 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); |
| 2358 | } |
| 2359 | kfree(txbmp); |
| 2360 | } |
| 2361 | |
| 2362 | loopback_test_exit: |
| 2363 | kfree(dataout); |
| 2364 | /* make error code available to userspace */ |
| 2365 | job->reply->result = rc; |
| 2366 | job->dd_data = NULL; |
| 2367 | /* complete the job back to userspace if no error */ |
| 2368 | if (rc == 0) |
| 2369 | job->job_done(job); |
| 2370 | return rc; |
| 2371 | } |
| 2372 | |
| 2373 | /** |
| 2374 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command |
| 2375 | * @job: GET_DFC_REV fc_bsg_job |
| 2376 | **/ |
| 2377 | static int |
| 2378 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) |
| 2379 | { |
| 2380 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2381 | struct lpfc_hba *phba = vport->phba; |
| 2382 | struct get_mgmt_rev *event_req; |
| 2383 | struct get_mgmt_rev_reply *event_reply; |
| 2384 | int rc = 0; |
| 2385 | |
| 2386 | if (job->request_len < |
| 2387 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { |
| 2388 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2389 | "2740 Received GET_DFC_REV request below " |
| 2390 | "minimum size\n"); |
| 2391 | rc = -EINVAL; |
| 2392 | goto job_error; |
| 2393 | } |
| 2394 | |
| 2395 | event_req = (struct get_mgmt_rev *) |
| 2396 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2397 | |
| 2398 | event_reply = (struct get_mgmt_rev_reply *) |
| 2399 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 2400 | |
| 2401 | if (job->reply_len < |
| 2402 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { |
| 2403 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2404 | "2741 Received GET_DFC_REV reply below " |
| 2405 | "minimum size\n"); |
| 2406 | rc = -EINVAL; |
| 2407 | goto job_error; |
| 2408 | } |
| 2409 | |
| 2410 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; |
| 2411 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; |
| 2412 | job_error: |
| 2413 | job->reply->result = rc; |
| 2414 | if (rc == 0) |
| 2415 | job->job_done(job); |
| 2416 | return rc; |
| 2417 | } |
| 2418 | |
| 2419 | /** |
| 2420 | * lpfc_bsg_wake_mbox_wait - lpfc_bsg_issue_mbox mbox completion handler |
| 2421 | * @phba: Pointer to HBA context object. |
| 2422 | * @pmboxq: Pointer to mailbox command. |
| 2423 | * |
| 2424 | * This is completion handler function for mailbox commands issued from |
| 2425 | * lpfc_bsg_issue_mbox function. This function is called by the |
| 2426 | * mailbox event handler function with no lock held. This function |
| 2427 | * will wake up thread waiting on the wait queue pointed by context1 |
| 2428 | * of the mailbox. |
| 2429 | **/ |
| 2430 | void |
| 2431 | lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 2432 | { |
| 2433 | struct bsg_job_data *dd_data; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2434 | struct fc_bsg_job *job; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2435 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2436 | uint32_t size; |
| 2437 | unsigned long flags; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2438 | uint8_t *to; |
| 2439 | uint8_t *from; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2440 | |
| 2441 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2442 | dd_data = pmboxq->context1; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2443 | /* job already timed out? */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2444 | if (!dd_data) { |
| 2445 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2446 | return; |
| 2447 | } |
| 2448 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2449 | /* build the outgoing buffer to do an sg copy |
| 2450 | * the format is the response mailbox followed by any extended |
| 2451 | * mailbox data |
| 2452 | */ |
| 2453 | from = (uint8_t *)&pmboxq->u.mb; |
| 2454 | to = (uint8_t *)dd_data->context_un.mbox.mb; |
| 2455 | memcpy(to, from, sizeof(MAILBOX_t)); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2456 | if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) { |
| 2457 | /* copy the extended data if any, count is in words */ |
| 2458 | if (dd_data->context_un.mbox.outExtWLen) { |
| 2459 | from = (uint8_t *)dd_data->context_un.mbox.ext; |
| 2460 | to += sizeof(MAILBOX_t); |
| 2461 | size = dd_data->context_un.mbox.outExtWLen * |
| 2462 | sizeof(uint32_t); |
| 2463 | memcpy(to, from, size); |
| 2464 | } else if (pmboxq->u.mb.mbxCommand == MBX_RUN_BIU_DIAG64) { |
| 2465 | from = (uint8_t *)dd_data->context_un.mbox. |
| 2466 | dmp->dma.virt; |
| 2467 | to += sizeof(MAILBOX_t); |
| 2468 | size = dd_data->context_un.mbox.dmp->size; |
| 2469 | memcpy(to, from, size); |
| 2470 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
| 2471 | (pmboxq->u.mb.mbxCommand == MBX_DUMP_MEMORY)) { |
| 2472 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. |
| 2473 | virt; |
| 2474 | to += sizeof(MAILBOX_t); |
| 2475 | size = pmboxq->u.mb.un.varWords[5]; |
| 2476 | memcpy(to, from, size); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2477 | } else if ((phba->sli_rev == LPFC_SLI_REV4) && |
| 2478 | (pmboxq->u.mb.mbxCommand == MBX_SLI4_CONFIG)) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2479 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) |
| 2480 | &pmboxq->u.mb.un.varWords[0]; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2481 | |
| 2482 | from = (uint8_t *)dd_data->context_un.mbox.dmp->dma. |
| 2483 | virt; |
| 2484 | to += sizeof(MAILBOX_t); |
| 2485 | size = nembed_sge->sge[0].length; |
| 2486 | memcpy(to, from, size); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2487 | } else if (pmboxq->u.mb.mbxCommand == MBX_READ_EVENT_LOG) { |
| 2488 | from = (uint8_t *)dd_data->context_un. |
| 2489 | mbox.dmp->dma.virt; |
| 2490 | to += sizeof(MAILBOX_t); |
| 2491 | size = dd_data->context_un.mbox.dmp->size; |
| 2492 | memcpy(to, from, size); |
| 2493 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2494 | } |
| 2495 | |
| 2496 | from = (uint8_t *)dd_data->context_un.mbox.mb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2497 | job = dd_data->context_un.mbox.set_job; |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2498 | if (job) { |
| 2499 | size = job->reply_payload.payload_len; |
| 2500 | job->reply->reply_payload_rcv_len = |
| 2501 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 2502 | job->reply_payload.sg_cnt, |
| 2503 | from, size); |
| 2504 | job->reply->result = 0; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2505 | /* need to hold the lock until we set job->dd_data to NULL |
| 2506 | * to hold off the timeout handler returning to the mid-layer |
| 2507 | * while we are still processing the job. |
| 2508 | */ |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2509 | job->dd_data = NULL; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2510 | dd_data->context_un.mbox.set_job = NULL; |
| 2511 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2512 | job->job_done(job); |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2513 | } else { |
| 2514 | dd_data->context_un.mbox.set_job = NULL; |
| 2515 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2516 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2517 | |
| 2518 | kfree(dd_data->context_un.mbox.mb); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2519 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2520 | kfree(dd_data->context_un.mbox.ext); |
| 2521 | if (dd_data->context_un.mbox.dmp) { |
| 2522 | dma_free_coherent(&phba->pcidev->dev, |
| 2523 | dd_data->context_un.mbox.dmp->size, |
| 2524 | dd_data->context_un.mbox.dmp->dma.virt, |
| 2525 | dd_data->context_un.mbox.dmp->dma.phys); |
| 2526 | kfree(dd_data->context_un.mbox.dmp); |
| 2527 | } |
| 2528 | if (dd_data->context_un.mbox.rxbmp) { |
| 2529 | lpfc_mbuf_free(phba, dd_data->context_un.mbox.rxbmp->virt, |
| 2530 | dd_data->context_un.mbox.rxbmp->phys); |
| 2531 | kfree(dd_data->context_un.mbox.rxbmp); |
| 2532 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2533 | kfree(dd_data); |
| 2534 | return; |
| 2535 | } |
| 2536 | |
| 2537 | /** |
| 2538 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command |
| 2539 | * @phba: Pointer to HBA context object. |
| 2540 | * @mb: Pointer to a mailbox object. |
| 2541 | * @vport: Pointer to a vport object. |
| 2542 | * |
| 2543 | * Some commands require the port to be offline, some may not be called from |
| 2544 | * the application. |
| 2545 | **/ |
| 2546 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, |
| 2547 | MAILBOX_t *mb, struct lpfc_vport *vport) |
| 2548 | { |
| 2549 | /* return negative error values for bsg job */ |
| 2550 | switch (mb->mbxCommand) { |
| 2551 | /* Offline only */ |
| 2552 | case MBX_INIT_LINK: |
| 2553 | case MBX_DOWN_LINK: |
| 2554 | case MBX_CONFIG_LINK: |
| 2555 | case MBX_CONFIG_RING: |
| 2556 | case MBX_RESET_RING: |
| 2557 | case MBX_UNREG_LOGIN: |
| 2558 | case MBX_CLEAR_LA: |
| 2559 | case MBX_DUMP_CONTEXT: |
| 2560 | case MBX_RUN_DIAGS: |
| 2561 | case MBX_RESTART: |
| 2562 | case MBX_SET_MASK: |
| 2563 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { |
| 2564 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2565 | "2743 Command 0x%x is illegal in on-line " |
| 2566 | "state\n", |
| 2567 | mb->mbxCommand); |
| 2568 | return -EPERM; |
| 2569 | } |
| 2570 | case MBX_WRITE_NV: |
| 2571 | case MBX_WRITE_VPARMS: |
| 2572 | case MBX_LOAD_SM: |
| 2573 | case MBX_READ_NV: |
| 2574 | case MBX_READ_CONFIG: |
| 2575 | case MBX_READ_RCONFIG: |
| 2576 | case MBX_READ_STATUS: |
| 2577 | case MBX_READ_XRI: |
| 2578 | case MBX_READ_REV: |
| 2579 | case MBX_READ_LNK_STAT: |
| 2580 | case MBX_DUMP_MEMORY: |
| 2581 | case MBX_DOWN_LOAD: |
| 2582 | case MBX_UPDATE_CFG: |
| 2583 | case MBX_KILL_BOARD: |
| 2584 | case MBX_LOAD_AREA: |
| 2585 | case MBX_LOAD_EXP_ROM: |
| 2586 | case MBX_BEACON: |
| 2587 | case MBX_DEL_LD_ENTRY: |
| 2588 | case MBX_SET_DEBUG: |
| 2589 | case MBX_WRITE_WWN: |
| 2590 | case MBX_SLI4_CONFIG: |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2591 | case MBX_READ_EVENT_LOG: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2592 | case MBX_READ_EVENT_LOG_STATUS: |
| 2593 | case MBX_WRITE_EVENT_LOG: |
| 2594 | case MBX_PORT_CAPABILITIES: |
| 2595 | case MBX_PORT_IOV_CONTROL: |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2596 | case MBX_RUN_BIU_DIAG64: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2597 | break; |
| 2598 | case MBX_SET_VARIABLE: |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 2599 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| 2600 | "1226 mbox: set_variable 0x%x, 0x%x\n", |
| 2601 | mb->un.varWords[0], |
| 2602 | mb->un.varWords[1]); |
| 2603 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) |
| 2604 | && (mb->un.varWords[1] == 1)) { |
| 2605 | phba->wait_4_mlo_maint_flg = 1; |
| 2606 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { |
| 2607 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
James Smart | 76a95d7 | 2010-11-20 23:11:48 -0500 | [diff] [blame] | 2608 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 2609 | } |
| 2610 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2611 | case MBX_READ_SPARM64: |
James Smart | 76a95d7 | 2010-11-20 23:11:48 -0500 | [diff] [blame] | 2612 | case MBX_READ_TOPOLOGY: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2613 | case MBX_REG_LOGIN: |
| 2614 | case MBX_REG_LOGIN64: |
| 2615 | case MBX_CONFIG_PORT: |
| 2616 | case MBX_RUN_BIU_DIAG: |
| 2617 | default: |
| 2618 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2619 | "2742 Unknown Command 0x%x\n", |
| 2620 | mb->mbxCommand); |
| 2621 | return -EPERM; |
| 2622 | } |
| 2623 | |
| 2624 | return 0; /* ok */ |
| 2625 | } |
| 2626 | |
| 2627 | /** |
| 2628 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app |
| 2629 | * @phba: Pointer to HBA context object. |
| 2630 | * @mb: Pointer to a mailbox object. |
| 2631 | * @vport: Pointer to a vport object. |
| 2632 | * |
| 2633 | * Allocate a tracking object, mailbox command memory, get a mailbox |
| 2634 | * from the mailbox pool, copy the caller mailbox command. |
| 2635 | * |
| 2636 | * If offline and the sli is active we need to poll for the command (port is |
| 2637 | * being reset) and com-plete the job, otherwise issue the mailbox command and |
| 2638 | * let our completion handler finish the command. |
| 2639 | **/ |
| 2640 | static uint32_t |
| 2641 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 2642 | struct lpfc_vport *vport) |
| 2643 | { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2644 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
| 2645 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ |
| 2646 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ |
| 2647 | MAILBOX_t *mb = NULL; |
| 2648 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2649 | uint32_t size; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2650 | struct lpfc_dmabuf *rxbmp = NULL; /* for biu diag */ |
| 2651 | struct lpfc_dmabufext *dmp = NULL; /* for biu diag */ |
| 2652 | struct ulp_bde64 *rxbpl = NULL; |
| 2653 | struct dfc_mbox_req *mbox_req = (struct dfc_mbox_req *) |
| 2654 | job->request->rqst_data.h_vendor.vendor_cmd; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2655 | struct READ_EVENT_LOG_VAR *rdEventLog; |
| 2656 | uint32_t transmit_length, receive_length, mode; |
| 2657 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
| 2658 | struct mbox_header *header; |
| 2659 | struct ulp_bde64 *bde; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2660 | uint8_t *ext = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2661 | int rc = 0; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2662 | uint8_t *from; |
| 2663 | |
| 2664 | /* in case no data is transferred */ |
| 2665 | job->reply->reply_payload_rcv_len = 0; |
| 2666 | |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2667 | /* sanity check to protect driver */ |
| 2668 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || |
| 2669 | job->request_payload.payload_len > BSG_MBOX_SIZE) { |
| 2670 | rc = -ERANGE; |
| 2671 | goto job_done; |
| 2672 | } |
| 2673 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2674 | /* check if requested extended data lengths are valid */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2675 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
| 2676 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2677 | rc = -ERANGE; |
| 2678 | goto job_done; |
| 2679 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2680 | |
| 2681 | /* allocate our bsg tracking structure */ |
| 2682 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 2683 | if (!dd_data) { |
| 2684 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2685 | "2727 Failed allocation of dd_data\n"); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2686 | rc = -ENOMEM; |
| 2687 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2688 | } |
| 2689 | |
James Smart | 49198b3 | 2010-04-06 15:04:33 -0400 | [diff] [blame] | 2690 | mb = kzalloc(BSG_MBOX_SIZE, GFP_KERNEL); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2691 | if (!mb) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2692 | rc = -ENOMEM; |
| 2693 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2694 | } |
| 2695 | |
| 2696 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2697 | if (!pmboxq) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2698 | rc = -ENOMEM; |
| 2699 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2700 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2701 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2702 | |
| 2703 | size = job->request_payload.payload_len; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2704 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 2705 | job->request_payload.sg_cnt, |
| 2706 | mb, size); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2707 | |
| 2708 | rc = lpfc_bsg_check_cmd_access(phba, mb, vport); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2709 | if (rc != 0) |
| 2710 | goto job_done; /* must be negative */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2711 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2712 | pmb = &pmboxq->u.mb; |
| 2713 | memcpy(pmb, mb, sizeof(*pmb)); |
| 2714 | pmb->mbxOwner = OWN_HOST; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2715 | pmboxq->vport = vport; |
| 2716 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2717 | /* If HBA encountered an error attention, allow only DUMP |
| 2718 | * or RESTART mailbox commands until the HBA is restarted. |
| 2719 | */ |
| 2720 | if (phba->pport->stopped && |
| 2721 | pmb->mbxCommand != MBX_DUMP_MEMORY && |
| 2722 | pmb->mbxCommand != MBX_RESTART && |
| 2723 | pmb->mbxCommand != MBX_WRITE_VPARMS && |
| 2724 | pmb->mbxCommand != MBX_WRITE_WWN) |
| 2725 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| 2726 | "2797 mbox: Issued mailbox cmd " |
| 2727 | "0x%x while in stopped state.\n", |
| 2728 | pmb->mbxCommand); |
| 2729 | |
| 2730 | /* Don't allow mailbox commands to be sent when blocked |
| 2731 | * or when in the middle of discovery |
| 2732 | */ |
| 2733 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
| 2734 | rc = -EAGAIN; |
| 2735 | goto job_done; |
| 2736 | } |
| 2737 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2738 | /* extended mailbox commands will need an extended buffer */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2739 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2740 | ext = kzalloc(MAILBOX_EXT_SIZE, GFP_KERNEL); |
| 2741 | if (!ext) { |
| 2742 | rc = -ENOMEM; |
| 2743 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2744 | } |
| 2745 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2746 | /* any data for the device? */ |
| 2747 | if (mbox_req->inExtWLen) { |
| 2748 | from = (uint8_t *)mb; |
| 2749 | from += sizeof(MAILBOX_t); |
| 2750 | memcpy((uint8_t *)ext, from, |
| 2751 | mbox_req->inExtWLen * sizeof(uint32_t)); |
| 2752 | } |
| 2753 | |
| 2754 | pmboxq->context2 = ext; |
| 2755 | pmboxq->in_ext_byte_len = |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2756 | mbox_req->inExtWLen * sizeof(uint32_t); |
| 2757 | pmboxq->out_ext_byte_len = |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2758 | mbox_req->outExtWLen * sizeof(uint32_t); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2759 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
| 2760 | } |
| 2761 | |
| 2762 | /* biu diag will need a kernel buffer to transfer the data |
| 2763 | * allocate our own buffer and setup the mailbox command to |
| 2764 | * use ours |
| 2765 | */ |
| 2766 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2767 | transmit_length = pmb->un.varWords[1]; |
| 2768 | receive_length = pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2769 | /* transmit length cannot be greater than receive length or |
| 2770 | * mailbox extension size |
| 2771 | */ |
| 2772 | if ((transmit_length > receive_length) || |
| 2773 | (transmit_length > MAILBOX_EXT_SIZE)) { |
| 2774 | rc = -ERANGE; |
| 2775 | goto job_done; |
| 2776 | } |
| 2777 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2778 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2779 | if (!rxbmp) { |
| 2780 | rc = -ENOMEM; |
| 2781 | goto job_done; |
| 2782 | } |
| 2783 | |
| 2784 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2785 | if (!rxbmp->virt) { |
| 2786 | rc = -ENOMEM; |
| 2787 | goto job_done; |
| 2788 | } |
| 2789 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2790 | INIT_LIST_HEAD(&rxbmp->list); |
| 2791 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2792 | dmp = diag_cmd_data_alloc(phba, rxbpl, transmit_length, 0); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2793 | if (!dmp) { |
| 2794 | rc = -ENOMEM; |
| 2795 | goto job_done; |
| 2796 | } |
| 2797 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2798 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2799 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
| 2800 | putPaddrHigh(dmp->dma.phys); |
| 2801 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
| 2802 | putPaddrLow(dmp->dma.phys); |
| 2803 | |
| 2804 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = |
| 2805 | putPaddrHigh(dmp->dma.phys + |
| 2806 | pmb->un.varBIUdiag.un.s2. |
| 2807 | xmit_bde64.tus.f.bdeSize); |
| 2808 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
| 2809 | putPaddrLow(dmp->dma.phys + |
| 2810 | pmb->un.varBIUdiag.un.s2. |
| 2811 | xmit_bde64.tus.f.bdeSize); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2812 | |
| 2813 | /* copy the transmit data found in the mailbox extension area */ |
| 2814 | from = (uint8_t *)mb; |
| 2815 | from += sizeof(MAILBOX_t); |
| 2816 | memcpy((uint8_t *)dmp->dma.virt, from, transmit_length); |
| 2817 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2818 | rdEventLog = &pmb->un.varRdEventLog; |
| 2819 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; |
| 2820 | mode = bf_get(lpfc_event_log, rdEventLog); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2821 | |
| 2822 | /* receive length cannot be greater than mailbox |
| 2823 | * extension size |
| 2824 | */ |
| 2825 | if (receive_length > MAILBOX_EXT_SIZE) { |
| 2826 | rc = -ERANGE; |
| 2827 | goto job_done; |
| 2828 | } |
| 2829 | |
| 2830 | /* mode zero uses a bde like biu diags command */ |
| 2831 | if (mode == 0) { |
| 2832 | |
| 2833 | /* rebuild the command for sli4 using our own buffers |
| 2834 | * like we do for biu diags |
| 2835 | */ |
| 2836 | |
| 2837 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2838 | if (!rxbmp) { |
| 2839 | rc = -ENOMEM; |
| 2840 | goto job_done; |
| 2841 | } |
| 2842 | |
| 2843 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
| 2844 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2845 | if (rxbpl) { |
| 2846 | INIT_LIST_HEAD(&rxbmp->list); |
| 2847 | dmp = diag_cmd_data_alloc(phba, rxbpl, |
| 2848 | receive_length, 0); |
| 2849 | } |
| 2850 | |
| 2851 | if (!dmp) { |
| 2852 | rc = -ENOMEM; |
| 2853 | goto job_done; |
| 2854 | } |
| 2855 | |
| 2856 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2857 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); |
| 2858 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); |
| 2859 | } |
| 2860 | } else if (phba->sli_rev == LPFC_SLI_REV4) { |
| 2861 | if (pmb->mbxCommand == MBX_DUMP_MEMORY) { |
| 2862 | /* rebuild the command for sli4 using our own buffers |
| 2863 | * like we do for biu diags |
| 2864 | */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2865 | receive_length = pmb->un.varWords[2]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2866 | /* receive length cannot be greater than mailbox |
| 2867 | * extension size |
| 2868 | */ |
| 2869 | if ((receive_length == 0) || |
| 2870 | (receive_length > MAILBOX_EXT_SIZE)) { |
| 2871 | rc = -ERANGE; |
| 2872 | goto job_done; |
| 2873 | } |
| 2874 | |
| 2875 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2876 | if (!rxbmp) { |
| 2877 | rc = -ENOMEM; |
| 2878 | goto job_done; |
| 2879 | } |
| 2880 | |
| 2881 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
| 2882 | if (!rxbmp->virt) { |
| 2883 | rc = -ENOMEM; |
| 2884 | goto job_done; |
| 2885 | } |
| 2886 | |
| 2887 | INIT_LIST_HEAD(&rxbmp->list); |
| 2888 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2889 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, |
| 2890 | 0); |
| 2891 | if (!dmp) { |
| 2892 | rc = -ENOMEM; |
| 2893 | goto job_done; |
| 2894 | } |
| 2895 | |
| 2896 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2897 | pmb->un.varWords[3] = putPaddrLow(dmp->dma.phys); |
| 2898 | pmb->un.varWords[4] = putPaddrHigh(dmp->dma.phys); |
| 2899 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
| 2900 | pmb->un.varUpdateCfg.co) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2901 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2902 | |
| 2903 | /* bde size cannot be greater than mailbox ext size */ |
| 2904 | if (bde->tus.f.bdeSize > MAILBOX_EXT_SIZE) { |
| 2905 | rc = -ERANGE; |
| 2906 | goto job_done; |
| 2907 | } |
| 2908 | |
| 2909 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2910 | if (!rxbmp) { |
| 2911 | rc = -ENOMEM; |
| 2912 | goto job_done; |
| 2913 | } |
| 2914 | |
| 2915 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
| 2916 | if (!rxbmp->virt) { |
| 2917 | rc = -ENOMEM; |
| 2918 | goto job_done; |
| 2919 | } |
| 2920 | |
| 2921 | INIT_LIST_HEAD(&rxbmp->list); |
| 2922 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2923 | dmp = diag_cmd_data_alloc(phba, rxbpl, |
| 2924 | bde->tus.f.bdeSize, 0); |
| 2925 | if (!dmp) { |
| 2926 | rc = -ENOMEM; |
| 2927 | goto job_done; |
| 2928 | } |
| 2929 | |
| 2930 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2931 | bde->addrHigh = putPaddrHigh(dmp->dma.phys); |
| 2932 | bde->addrLow = putPaddrLow(dmp->dma.phys); |
| 2933 | |
| 2934 | /* copy the transmit data found in the mailbox |
| 2935 | * extension area |
| 2936 | */ |
| 2937 | from = (uint8_t *)mb; |
| 2938 | from += sizeof(MAILBOX_t); |
| 2939 | memcpy((uint8_t *)dmp->dma.virt, from, |
| 2940 | bde->tus.f.bdeSize); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2941 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2942 | /* rebuild the command for sli4 using our own buffers |
| 2943 | * like we do for biu diags |
| 2944 | */ |
| 2945 | header = (struct mbox_header *)&pmb->un.varWords[0]; |
| 2946 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) |
| 2947 | &pmb->un.varWords[0]; |
| 2948 | receive_length = nembed_sge->sge[0].length; |
| 2949 | |
| 2950 | /* receive length cannot be greater than mailbox |
| 2951 | * extension size |
| 2952 | */ |
| 2953 | if ((receive_length == 0) || |
| 2954 | (receive_length > MAILBOX_EXT_SIZE)) { |
| 2955 | rc = -ERANGE; |
| 2956 | goto job_done; |
| 2957 | } |
| 2958 | |
| 2959 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2960 | if (!rxbmp) { |
| 2961 | rc = -ENOMEM; |
| 2962 | goto job_done; |
| 2963 | } |
| 2964 | |
| 2965 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
| 2966 | if (!rxbmp->virt) { |
| 2967 | rc = -ENOMEM; |
| 2968 | goto job_done; |
| 2969 | } |
| 2970 | |
| 2971 | INIT_LIST_HEAD(&rxbmp->list); |
| 2972 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2973 | dmp = diag_cmd_data_alloc(phba, rxbpl, receive_length, |
| 2974 | 0); |
| 2975 | if (!dmp) { |
| 2976 | rc = -ENOMEM; |
| 2977 | goto job_done; |
| 2978 | } |
| 2979 | |
| 2980 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2981 | nembed_sge->sge[0].pa_hi = putPaddrHigh(dmp->dma.phys); |
| 2982 | nembed_sge->sge[0].pa_lo = putPaddrLow(dmp->dma.phys); |
| 2983 | /* copy the transmit data found in the mailbox |
| 2984 | * extension area |
| 2985 | */ |
| 2986 | from = (uint8_t *)mb; |
| 2987 | from += sizeof(MAILBOX_t); |
| 2988 | memcpy((uint8_t *)dmp->dma.virt, from, |
| 2989 | header->cfg_mhdr.payload_length); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2990 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2991 | } |
| 2992 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2993 | dd_data->context_un.mbox.rxbmp = rxbmp; |
| 2994 | dd_data->context_un.mbox.dmp = dmp; |
| 2995 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2996 | /* setup wake call as IOCB callback */ |
| 2997 | pmboxq->mbox_cmpl = lpfc_bsg_wake_mbox_wait; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2998 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2999 | /* setup context field to pass wait_queue pointer to wake function */ |
| 3000 | pmboxq->context1 = dd_data; |
| 3001 | dd_data->type = TYPE_MBOX; |
| 3002 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 3003 | dd_data->context_un.mbox.mb = mb; |
| 3004 | dd_data->context_un.mbox.set_job = job; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3005 | dd_data->context_un.mbox.ext = ext; |
| 3006 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; |
| 3007 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 3008 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3009 | job->dd_data = dd_data; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3010 | |
| 3011 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| 3012 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { |
| 3013 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 3014 | if (rc != MBX_SUCCESS) { |
| 3015 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
| 3016 | goto job_done; |
| 3017 | } |
| 3018 | |
| 3019 | /* job finished, copy the data */ |
| 3020 | memcpy(mb, pmb, sizeof(*pmb)); |
| 3021 | job->reply->reply_payload_rcv_len = |
| 3022 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 3023 | job->reply_payload.sg_cnt, |
| 3024 | mb, size); |
| 3025 | /* not waiting mbox already done */ |
| 3026 | rc = 0; |
| 3027 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3028 | } |
| 3029 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3030 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 3031 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
| 3032 | return 1; /* job started */ |
| 3033 | |
| 3034 | job_done: |
| 3035 | /* common exit for error or job completed inline */ |
| 3036 | kfree(mb); |
| 3037 | if (pmboxq) |
| 3038 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3039 | kfree(ext); |
| 3040 | if (dmp) { |
| 3041 | dma_free_coherent(&phba->pcidev->dev, |
| 3042 | dmp->size, dmp->dma.virt, |
| 3043 | dmp->dma.phys); |
| 3044 | kfree(dmp); |
| 3045 | } |
| 3046 | if (rxbmp) { |
| 3047 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); |
| 3048 | kfree(rxbmp); |
| 3049 | } |
| 3050 | kfree(dd_data); |
| 3051 | |
| 3052 | return rc; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3053 | } |
| 3054 | |
| 3055 | /** |
| 3056 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command |
| 3057 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. |
| 3058 | **/ |
| 3059 | static int |
| 3060 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) |
| 3061 | { |
| 3062 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 3063 | struct lpfc_hba *phba = vport->phba; |
| 3064 | int rc = 0; |
| 3065 | |
| 3066 | /* in case no data is transferred */ |
| 3067 | job->reply->reply_payload_rcv_len = 0; |
| 3068 | if (job->request_len < |
| 3069 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { |
| 3070 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3071 | "2737 Received MBOX_REQ request below " |
| 3072 | "minimum size\n"); |
| 3073 | rc = -EINVAL; |
| 3074 | goto job_error; |
| 3075 | } |
| 3076 | |
James Smart | 49198b3 | 2010-04-06 15:04:33 -0400 | [diff] [blame] | 3077 | if (job->request_payload.payload_len != BSG_MBOX_SIZE) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3078 | rc = -EINVAL; |
| 3079 | goto job_error; |
| 3080 | } |
| 3081 | |
James Smart | 49198b3 | 2010-04-06 15:04:33 -0400 | [diff] [blame] | 3082 | if (job->reply_payload.payload_len != BSG_MBOX_SIZE) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3083 | rc = -EINVAL; |
| 3084 | goto job_error; |
| 3085 | } |
| 3086 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3087 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
| 3088 | rc = -EAGAIN; |
| 3089 | goto job_error; |
| 3090 | } |
| 3091 | |
| 3092 | rc = lpfc_bsg_issue_mbox(phba, job, vport); |
| 3093 | |
| 3094 | job_error: |
| 3095 | if (rc == 0) { |
| 3096 | /* job done */ |
| 3097 | job->reply->result = 0; |
| 3098 | job->dd_data = NULL; |
| 3099 | job->job_done(job); |
| 3100 | } else if (rc == 1) |
| 3101 | /* job submitted, will complete later*/ |
| 3102 | rc = 0; /* return zero, no error */ |
| 3103 | else { |
| 3104 | /* some error occurred */ |
| 3105 | job->reply->result = rc; |
| 3106 | job->dd_data = NULL; |
| 3107 | } |
| 3108 | |
| 3109 | return rc; |
| 3110 | } |
| 3111 | |
| 3112 | /** |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3113 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler |
| 3114 | * @phba: Pointer to HBA context object. |
| 3115 | * @cmdiocbq: Pointer to command iocb. |
| 3116 | * @rspiocbq: Pointer to response iocb. |
| 3117 | * |
| 3118 | * This function is the completion handler for iocbs issued using |
| 3119 | * lpfc_menlo_cmd function. This function is called by the |
| 3120 | * ring event handler function without any lock held. This function |
| 3121 | * can be called from both worker thread context and interrupt |
| 3122 | * context. This function also can be called from another thread which |
| 3123 | * cleans up the SLI layer objects. |
| 3124 | * This function copies the contents of the response iocb to the |
| 3125 | * response iocb memory object provided by the caller of |
| 3126 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 3127 | * sleeps for the iocb completion. |
| 3128 | **/ |
| 3129 | static void |
| 3130 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, |
| 3131 | struct lpfc_iocbq *cmdiocbq, |
| 3132 | struct lpfc_iocbq *rspiocbq) |
| 3133 | { |
| 3134 | struct bsg_job_data *dd_data; |
| 3135 | struct fc_bsg_job *job; |
| 3136 | IOCB_t *rsp; |
| 3137 | struct lpfc_dmabuf *bmp; |
| 3138 | struct lpfc_bsg_menlo *menlo; |
| 3139 | unsigned long flags; |
| 3140 | struct menlo_response *menlo_resp; |
| 3141 | int rc = 0; |
| 3142 | |
| 3143 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3144 | dd_data = cmdiocbq->context1; |
| 3145 | if (!dd_data) { |
| 3146 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3147 | return; |
| 3148 | } |
| 3149 | |
| 3150 | menlo = &dd_data->context_un.menlo; |
| 3151 | job = menlo->set_job; |
| 3152 | job->dd_data = NULL; /* so timeout handler does not reply */ |
| 3153 | |
James Smart | 5989b8d | 2010-10-22 11:06:56 -0400 | [diff] [blame] | 3154 | spin_lock(&phba->hbalock); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3155 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
| 3156 | if (cmdiocbq->context2 && rspiocbq) |
| 3157 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, |
| 3158 | &rspiocbq->iocb, sizeof(IOCB_t)); |
James Smart | 5989b8d | 2010-10-22 11:06:56 -0400 | [diff] [blame] | 3159 | spin_unlock(&phba->hbalock); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3160 | |
| 3161 | bmp = menlo->bmp; |
| 3162 | rspiocbq = menlo->rspiocbq; |
| 3163 | rsp = &rspiocbq->iocb; |
| 3164 | |
| 3165 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 3166 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 3167 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 3168 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 3169 | |
| 3170 | /* always return the xri, this would be used in the case |
| 3171 | * of a menlo download to allow the data to be sent as a continuation |
| 3172 | * of the exchange. |
| 3173 | */ |
| 3174 | menlo_resp = (struct menlo_response *) |
| 3175 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 3176 | menlo_resp->xri = rsp->ulpContext; |
| 3177 | if (rsp->ulpStatus) { |
| 3178 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 3179 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 3180 | case IOERR_SEQUENCE_TIMEOUT: |
| 3181 | rc = -ETIMEDOUT; |
| 3182 | break; |
| 3183 | case IOERR_INVALID_RPI: |
| 3184 | rc = -EFAULT; |
| 3185 | break; |
| 3186 | default: |
| 3187 | rc = -EACCES; |
| 3188 | break; |
| 3189 | } |
| 3190 | } else |
| 3191 | rc = -EACCES; |
| 3192 | } else |
| 3193 | job->reply->reply_payload_rcv_len = |
| 3194 | rsp->un.genreq64.bdl.bdeSize; |
| 3195 | |
| 3196 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 3197 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 3198 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 3199 | kfree(bmp); |
| 3200 | kfree(dd_data); |
| 3201 | /* make error code available to userspace */ |
| 3202 | job->reply->result = rc; |
| 3203 | /* complete the job back to userspace */ |
| 3204 | job->job_done(job); |
| 3205 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3206 | return; |
| 3207 | } |
| 3208 | |
| 3209 | /** |
| 3210 | * lpfc_menlo_cmd - send an ioctl for menlo hardware |
| 3211 | * @job: fc_bsg_job to handle |
| 3212 | * |
| 3213 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, |
| 3214 | * all the command completions will return the xri for the command. |
| 3215 | * For menlo data requests a gen request 64 CX is used to continue the exchange |
| 3216 | * supplied in the menlo request header xri field. |
| 3217 | **/ |
| 3218 | static int |
| 3219 | lpfc_menlo_cmd(struct fc_bsg_job *job) |
| 3220 | { |
| 3221 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 3222 | struct lpfc_hba *phba = vport->phba; |
| 3223 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 3224 | IOCB_t *cmd, *rsp; |
| 3225 | int rc = 0; |
| 3226 | struct menlo_command *menlo_cmd; |
| 3227 | struct menlo_response *menlo_resp; |
| 3228 | struct lpfc_dmabuf *bmp = NULL; |
| 3229 | int request_nseg; |
| 3230 | int reply_nseg; |
| 3231 | struct scatterlist *sgel = NULL; |
| 3232 | int numbde; |
| 3233 | dma_addr_t busaddr; |
| 3234 | struct bsg_job_data *dd_data; |
| 3235 | struct ulp_bde64 *bpl = NULL; |
| 3236 | |
| 3237 | /* in case no data is returned return just the return code */ |
| 3238 | job->reply->reply_payload_rcv_len = 0; |
| 3239 | |
| 3240 | if (job->request_len < |
| 3241 | sizeof(struct fc_bsg_request) + |
| 3242 | sizeof(struct menlo_command)) { |
| 3243 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3244 | "2784 Received MENLO_CMD request below " |
| 3245 | "minimum size\n"); |
| 3246 | rc = -ERANGE; |
| 3247 | goto no_dd_data; |
| 3248 | } |
| 3249 | |
| 3250 | if (job->reply_len < |
| 3251 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { |
| 3252 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3253 | "2785 Received MENLO_CMD reply below " |
| 3254 | "minimum size\n"); |
| 3255 | rc = -ERANGE; |
| 3256 | goto no_dd_data; |
| 3257 | } |
| 3258 | |
| 3259 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { |
| 3260 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3261 | "2786 Adapter does not support menlo " |
| 3262 | "commands\n"); |
| 3263 | rc = -EPERM; |
| 3264 | goto no_dd_data; |
| 3265 | } |
| 3266 | |
| 3267 | menlo_cmd = (struct menlo_command *) |
| 3268 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 3269 | |
| 3270 | menlo_resp = (struct menlo_response *) |
| 3271 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 3272 | |
| 3273 | /* allocate our bsg tracking structure */ |
| 3274 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 3275 | if (!dd_data) { |
| 3276 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3277 | "2787 Failed allocation of dd_data\n"); |
| 3278 | rc = -ENOMEM; |
| 3279 | goto no_dd_data; |
| 3280 | } |
| 3281 | |
| 3282 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 3283 | if (!bmp) { |
| 3284 | rc = -ENOMEM; |
| 3285 | goto free_dd; |
| 3286 | } |
| 3287 | |
| 3288 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 3289 | if (!cmdiocbq) { |
| 3290 | rc = -ENOMEM; |
| 3291 | goto free_bmp; |
| 3292 | } |
| 3293 | |
| 3294 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 3295 | if (!rspiocbq) { |
| 3296 | rc = -ENOMEM; |
| 3297 | goto free_cmdiocbq; |
| 3298 | } |
| 3299 | |
| 3300 | rsp = &rspiocbq->iocb; |
| 3301 | |
| 3302 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 3303 | if (!bmp->virt) { |
| 3304 | rc = -ENOMEM; |
| 3305 | goto free_rspiocbq; |
| 3306 | } |
| 3307 | |
| 3308 | INIT_LIST_HEAD(&bmp->list); |
| 3309 | bpl = (struct ulp_bde64 *) bmp->virt; |
| 3310 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 3311 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 3312 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 3313 | busaddr = sg_dma_address(sgel); |
| 3314 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 3315 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 3316 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 3317 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 3318 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 3319 | bpl++; |
| 3320 | } |
| 3321 | |
| 3322 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 3323 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 3324 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 3325 | busaddr = sg_dma_address(sgel); |
| 3326 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 3327 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 3328 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 3329 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 3330 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 3331 | bpl++; |
| 3332 | } |
| 3333 | |
| 3334 | cmd = &cmdiocbq->iocb; |
| 3335 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 3336 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 3337 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 3338 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 3339 | cmd->un.genreq64.bdl.bdeSize = |
| 3340 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 3341 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 3342 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
| 3343 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; |
| 3344 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ |
| 3345 | cmd->ulpBdeCount = 1; |
| 3346 | cmd->ulpClass = CLASS3; |
| 3347 | cmd->ulpOwner = OWN_CHIP; |
| 3348 | cmd->ulpLe = 1; /* Limited Edition */ |
| 3349 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 3350 | cmdiocbq->vport = phba->pport; |
| 3351 | /* We want the firmware to timeout before we do */ |
| 3352 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; |
| 3353 | cmdiocbq->context3 = bmp; |
| 3354 | cmdiocbq->context2 = rspiocbq; |
| 3355 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; |
| 3356 | cmdiocbq->context1 = dd_data; |
| 3357 | cmdiocbq->context2 = rspiocbq; |
| 3358 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { |
| 3359 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 3360 | cmd->ulpPU = MENLO_PU; /* 3 */ |
| 3361 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ |
| 3362 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ |
| 3363 | } else { |
| 3364 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; |
| 3365 | cmd->ulpPU = 1; |
| 3366 | cmd->un.ulpWord[4] = 0; |
| 3367 | cmd->ulpContext = menlo_cmd->xri; |
| 3368 | } |
| 3369 | |
| 3370 | dd_data->type = TYPE_MENLO; |
| 3371 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; |
| 3372 | dd_data->context_un.menlo.rspiocbq = rspiocbq; |
| 3373 | dd_data->context_un.menlo.set_job = job; |
| 3374 | dd_data->context_un.menlo.bmp = bmp; |
| 3375 | |
| 3376 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 3377 | MENLO_TIMEOUT - 5); |
| 3378 | if (rc == IOCB_SUCCESS) |
| 3379 | return 0; /* done for now */ |
| 3380 | |
| 3381 | /* iocb failed so cleanup */ |
| 3382 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 3383 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 3384 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 3385 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 3386 | |
| 3387 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 3388 | |
| 3389 | free_rspiocbq: |
| 3390 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 3391 | free_cmdiocbq: |
| 3392 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 3393 | free_bmp: |
| 3394 | kfree(bmp); |
| 3395 | free_dd: |
| 3396 | kfree(dd_data); |
| 3397 | no_dd_data: |
| 3398 | /* make error code available to userspace */ |
| 3399 | job->reply->result = rc; |
| 3400 | job->dd_data = NULL; |
| 3401 | return rc; |
| 3402 | } |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 3403 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3404 | /** |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3405 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job |
| 3406 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3407 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3408 | static int |
| 3409 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) |
| 3410 | { |
| 3411 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3412 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3413 | |
| 3414 | switch (command) { |
| 3415 | case LPFC_BSG_VENDOR_SET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3416 | rc = lpfc_bsg_hba_set_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3417 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3418 | case LPFC_BSG_VENDOR_GET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3419 | rc = lpfc_bsg_hba_get_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3420 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3421 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: |
| 3422 | rc = lpfc_bsg_send_mgmt_rsp(job); |
| 3423 | break; |
| 3424 | case LPFC_BSG_VENDOR_DIAG_MODE: |
| 3425 | rc = lpfc_bsg_diag_mode(job); |
| 3426 | break; |
| 3427 | case LPFC_BSG_VENDOR_DIAG_TEST: |
| 3428 | rc = lpfc_bsg_diag_test(job); |
| 3429 | break; |
| 3430 | case LPFC_BSG_VENDOR_GET_MGMT_REV: |
| 3431 | rc = lpfc_bsg_get_dfc_rev(job); |
| 3432 | break; |
| 3433 | case LPFC_BSG_VENDOR_MBOX: |
| 3434 | rc = lpfc_bsg_mbox_cmd(job); |
| 3435 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3436 | case LPFC_BSG_VENDOR_MENLO_CMD: |
| 3437 | case LPFC_BSG_VENDOR_MENLO_DATA: |
| 3438 | rc = lpfc_menlo_cmd(job); |
| 3439 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3440 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3441 | rc = -EINVAL; |
| 3442 | job->reply->reply_payload_rcv_len = 0; |
| 3443 | /* make error code available to userspace */ |
| 3444 | job->reply->result = rc; |
| 3445 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3446 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3447 | |
| 3448 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3449 | } |
| 3450 | |
| 3451 | /** |
| 3452 | * lpfc_bsg_request - handle a bsg request from the FC transport |
| 3453 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3454 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3455 | int |
| 3456 | lpfc_bsg_request(struct fc_bsg_job *job) |
| 3457 | { |
| 3458 | uint32_t msgcode; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3459 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3460 | |
| 3461 | msgcode = job->request->msgcode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3462 | switch (msgcode) { |
| 3463 | case FC_BSG_HST_VENDOR: |
| 3464 | rc = lpfc_bsg_hst_vendor(job); |
| 3465 | break; |
| 3466 | case FC_BSG_RPT_ELS: |
| 3467 | rc = lpfc_bsg_rport_els(job); |
| 3468 | break; |
| 3469 | case FC_BSG_RPT_CT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3470 | rc = lpfc_bsg_send_mgmt_cmd(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3471 | break; |
| 3472 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3473 | rc = -EINVAL; |
| 3474 | job->reply->reply_payload_rcv_len = 0; |
| 3475 | /* make error code available to userspace */ |
| 3476 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3477 | break; |
| 3478 | } |
| 3479 | |
| 3480 | return rc; |
| 3481 | } |
| 3482 | |
| 3483 | /** |
| 3484 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport |
| 3485 | * @job: fc_bsg_job that has timed out |
| 3486 | * |
| 3487 | * This function just aborts the job's IOCB. The aborted IOCB will return to |
| 3488 | * the waiting function which will handle passing the error back to userspace |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3489 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3490 | int |
| 3491 | lpfc_bsg_timeout(struct fc_bsg_job *job) |
| 3492 | { |
| 3493 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 3494 | struct lpfc_hba *phba = vport->phba; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3495 | struct lpfc_iocbq *cmdiocb; |
| 3496 | struct lpfc_bsg_event *evt; |
| 3497 | struct lpfc_bsg_iocb *iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3498 | struct lpfc_bsg_mbox *mbox; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3499 | struct lpfc_bsg_menlo *menlo; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3500 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3501 | struct bsg_job_data *dd_data; |
| 3502 | unsigned long flags; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3503 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3504 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3505 | dd_data = (struct bsg_job_data *)job->dd_data; |
| 3506 | /* timeout and completion crossed paths if no dd_data */ |
| 3507 | if (!dd_data) { |
| 3508 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3509 | return 0; |
| 3510 | } |
| 3511 | |
| 3512 | switch (dd_data->type) { |
| 3513 | case TYPE_IOCB: |
| 3514 | iocb = &dd_data->context_un.iocb; |
| 3515 | cmdiocb = iocb->cmdiocbq; |
| 3516 | /* hint to completion handler that the job timed out */ |
| 3517 | job->reply->result = -EAGAIN; |
| 3518 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3519 | /* this will call our completion handler */ |
| 3520 | spin_lock_irq(&phba->hbalock); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3521 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3522 | spin_unlock_irq(&phba->hbalock); |
| 3523 | break; |
| 3524 | case TYPE_EVT: |
| 3525 | evt = dd_data->context_un.evt; |
| 3526 | /* this event has no job anymore */ |
| 3527 | evt->set_job = NULL; |
| 3528 | job->dd_data = NULL; |
| 3529 | job->reply->reply_payload_rcv_len = 0; |
| 3530 | /* Return -EAGAIN which is our way of signallying the |
| 3531 | * app to retry. |
| 3532 | */ |
| 3533 | job->reply->result = -EAGAIN; |
| 3534 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3535 | job->job_done(job); |
| 3536 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3537 | case TYPE_MBOX: |
| 3538 | mbox = &dd_data->context_un.mbox; |
| 3539 | /* this mbox has no job anymore */ |
| 3540 | mbox->set_job = NULL; |
| 3541 | job->dd_data = NULL; |
| 3542 | job->reply->reply_payload_rcv_len = 0; |
| 3543 | job->reply->result = -EAGAIN; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3544 | /* the mbox completion handler can now be run */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3545 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3546 | job->job_done(job); |
| 3547 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3548 | case TYPE_MENLO: |
| 3549 | menlo = &dd_data->context_un.menlo; |
| 3550 | cmdiocb = menlo->cmdiocbq; |
| 3551 | /* hint to completion handler that the job timed out */ |
| 3552 | job->reply->result = -EAGAIN; |
| 3553 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3554 | /* this will call our completion handler */ |
| 3555 | spin_lock_irq(&phba->hbalock); |
| 3556 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
| 3557 | spin_unlock_irq(&phba->hbalock); |
| 3558 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3559 | default: |
| 3560 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3561 | break; |
| 3562 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3563 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 3564 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
| 3565 | * otherwise an error message will be displayed on the console |
| 3566 | * so always return success (zero) |
| 3567 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 3568 | return 0; |
| 3569 | } |