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 | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 26 | #include <linux/list.h> |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 27 | |
| 28 | #include <scsi/scsi.h> |
| 29 | #include <scsi/scsi_host.h> |
| 30 | #include <scsi/scsi_transport_fc.h> |
| 31 | #include <scsi/scsi_bsg_fc.h> |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 32 | #include <scsi/fc/fc_fs.h> |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 33 | |
| 34 | #include "lpfc_hw4.h" |
| 35 | #include "lpfc_hw.h" |
| 36 | #include "lpfc_sli.h" |
| 37 | #include "lpfc_sli4.h" |
| 38 | #include "lpfc_nl.h" |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 39 | #include "lpfc_bsg.h" |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 40 | #include "lpfc_disc.h" |
| 41 | #include "lpfc_scsi.h" |
| 42 | #include "lpfc.h" |
| 43 | #include "lpfc_logmsg.h" |
| 44 | #include "lpfc_crtn.h" |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 45 | #include "lpfc_debugfs.h" |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 46 | #include "lpfc_vport.h" |
| 47 | #include "lpfc_version.h" |
| 48 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 49 | struct lpfc_bsg_event { |
| 50 | struct list_head node; |
| 51 | struct kref kref; |
| 52 | wait_queue_head_t wq; |
| 53 | |
| 54 | /* Event type and waiter identifiers */ |
| 55 | uint32_t type_mask; |
| 56 | uint32_t req_id; |
| 57 | uint32_t reg_id; |
| 58 | |
| 59 | /* next two flags are here for the auto-delete logic */ |
| 60 | unsigned long wait_time_stamp; |
| 61 | int waiting; |
| 62 | |
| 63 | /* seen and not seen events */ |
| 64 | struct list_head events_to_get; |
| 65 | struct list_head events_to_see; |
| 66 | |
| 67 | /* job waiting for this event to finish */ |
| 68 | struct fc_bsg_job *set_job; |
| 69 | }; |
| 70 | |
| 71 | struct lpfc_bsg_iocb { |
| 72 | struct lpfc_iocbq *cmdiocbq; |
| 73 | struct lpfc_iocbq *rspiocbq; |
| 74 | struct lpfc_dmabuf *bmp; |
| 75 | struct lpfc_nodelist *ndlp; |
| 76 | |
| 77 | /* job waiting for this iocb to finish */ |
| 78 | struct fc_bsg_job *set_job; |
| 79 | }; |
| 80 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 81 | struct lpfc_bsg_mbox { |
| 82 | LPFC_MBOXQ_t *pmboxq; |
| 83 | MAILBOX_t *mb; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 84 | struct lpfc_dmabuf *dmabuffers; /* for BIU diags */ |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 85 | uint8_t *ext; /* extended mailbox data */ |
| 86 | uint32_t mbOffset; /* from app */ |
| 87 | uint32_t inExtWLen; /* from app */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 88 | uint32_t outExtWLen; /* from app */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 89 | |
| 90 | /* job waiting for this mbox command to finish */ |
| 91 | struct fc_bsg_job *set_job; |
| 92 | }; |
| 93 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 94 | #define MENLO_DID 0x0000FC0E |
| 95 | |
| 96 | struct lpfc_bsg_menlo { |
| 97 | struct lpfc_iocbq *cmdiocbq; |
| 98 | struct lpfc_iocbq *rspiocbq; |
| 99 | struct lpfc_dmabuf *bmp; |
| 100 | |
| 101 | /* job waiting for this iocb to finish */ |
| 102 | struct fc_bsg_job *set_job; |
| 103 | }; |
| 104 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 105 | #define TYPE_EVT 1 |
| 106 | #define TYPE_IOCB 2 |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 107 | #define TYPE_MBOX 3 |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 108 | #define TYPE_MENLO 4 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 109 | struct bsg_job_data { |
| 110 | uint32_t type; |
| 111 | union { |
| 112 | struct lpfc_bsg_event *evt; |
| 113 | struct lpfc_bsg_iocb iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 114 | struct lpfc_bsg_mbox mbox; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 115 | struct lpfc_bsg_menlo menlo; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 116 | } context_un; |
| 117 | }; |
| 118 | |
| 119 | struct event_data { |
| 120 | struct list_head node; |
| 121 | uint32_t type; |
| 122 | uint32_t immed_dat; |
| 123 | void *data; |
| 124 | uint32_t len; |
| 125 | }; |
| 126 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 127 | #define BUF_SZ_4K 4096 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 128 | #define SLI_CT_ELX_LOOPBACK 0x10 |
| 129 | |
| 130 | enum ELX_LOOPBACK_CMD { |
| 131 | ELX_LOOPBACK_XRI_SETUP, |
| 132 | ELX_LOOPBACK_DATA, |
| 133 | }; |
| 134 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 135 | #define ELX_LOOPBACK_HEADER_SZ \ |
| 136 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) |
| 137 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 138 | struct lpfc_dmabufext { |
| 139 | struct lpfc_dmabuf dma; |
| 140 | uint32_t size; |
| 141 | uint32_t flag; |
| 142 | }; |
| 143 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 144 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 145 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler |
| 146 | * @phba: Pointer to HBA context object. |
| 147 | * @cmdiocbq: Pointer to command iocb. |
| 148 | * @rspiocbq: Pointer to response iocb. |
| 149 | * |
| 150 | * This function is the completion handler for iocbs issued using |
| 151 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the |
| 152 | * ring event handler function without any lock held. This function |
| 153 | * can be called from both worker thread context and interrupt |
| 154 | * context. This function also can be called from another thread which |
| 155 | * cleans up the SLI layer objects. |
| 156 | * This function copies the contents of the response iocb to the |
| 157 | * response iocb memory object provided by the caller of |
| 158 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 159 | * sleeps for the iocb completion. |
| 160 | **/ |
| 161 | static void |
| 162 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, |
| 163 | struct lpfc_iocbq *cmdiocbq, |
| 164 | struct lpfc_iocbq *rspiocbq) |
| 165 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 166 | struct bsg_job_data *dd_data; |
| 167 | struct fc_bsg_job *job; |
| 168 | IOCB_t *rsp; |
| 169 | struct lpfc_dmabuf *bmp; |
| 170 | struct lpfc_nodelist *ndlp; |
| 171 | struct lpfc_bsg_iocb *iocb; |
| 172 | unsigned long flags; |
| 173 | int rc = 0; |
| 174 | |
| 175 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 176 | dd_data = cmdiocbq->context2; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 177 | if (!dd_data) { |
| 178 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 179 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 180 | return; |
| 181 | } |
| 182 | |
| 183 | iocb = &dd_data->context_un.iocb; |
| 184 | job = iocb->set_job; |
| 185 | job->dd_data = NULL; /* so timeout handler does not reply */ |
| 186 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 187 | bmp = iocb->bmp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 188 | rsp = &rspiocbq->iocb; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 189 | ndlp = cmdiocbq->context1; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 190 | |
| 191 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 192 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 193 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 194 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 195 | |
| 196 | if (rsp->ulpStatus) { |
| 197 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 198 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 199 | case IOERR_SEQUENCE_TIMEOUT: |
| 200 | rc = -ETIMEDOUT; |
| 201 | break; |
| 202 | case IOERR_INVALID_RPI: |
| 203 | rc = -EFAULT; |
| 204 | break; |
| 205 | default: |
| 206 | rc = -EACCES; |
| 207 | break; |
| 208 | } |
| 209 | } else |
| 210 | rc = -EACCES; |
| 211 | } else |
| 212 | job->reply->reply_payload_rcv_len = |
| 213 | rsp->un.genreq64.bdl.bdeSize; |
| 214 | |
| 215 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 216 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 217 | lpfc_nlp_put(ndlp); |
| 218 | kfree(bmp); |
| 219 | kfree(dd_data); |
| 220 | /* make error code available to userspace */ |
| 221 | job->reply->result = rc; |
| 222 | /* complete the job back to userspace */ |
| 223 | job->job_done(job); |
| 224 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 225 | return; |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * 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] | 230 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 231 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 232 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 233 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 234 | { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 235 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 236 | struct lpfc_hba *phba = vport->phba; |
| 237 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 238 | struct lpfc_nodelist *ndlp = rdata->pnode; |
| 239 | struct ulp_bde64 *bpl = NULL; |
| 240 | uint32_t timeout; |
| 241 | struct lpfc_iocbq *cmdiocbq = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 242 | IOCB_t *cmd; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 243 | struct lpfc_dmabuf *bmp = NULL; |
| 244 | int request_nseg; |
| 245 | int reply_nseg; |
| 246 | struct scatterlist *sgel = NULL; |
| 247 | int numbde; |
| 248 | dma_addr_t busaddr; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 249 | struct bsg_job_data *dd_data; |
| 250 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 251 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 252 | int iocb_stat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 253 | |
| 254 | /* in case no data is transferred */ |
| 255 | job->reply->reply_payload_rcv_len = 0; |
| 256 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 257 | /* allocate our bsg tracking structure */ |
| 258 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 259 | if (!dd_data) { |
| 260 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 261 | "2733 Failed allocation of dd_data\n"); |
| 262 | rc = -ENOMEM; |
| 263 | goto no_dd_data; |
| 264 | } |
| 265 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 266 | if (!lpfc_nlp_get(ndlp)) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 267 | rc = -ENODEV; |
| 268 | goto no_ndlp; |
| 269 | } |
| 270 | |
| 271 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 272 | if (!bmp) { |
| 273 | rc = -ENOMEM; |
| 274 | goto free_ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { |
| 278 | rc = -ENODEV; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 279 | goto free_bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 280 | } |
| 281 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 282 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 283 | if (!cmdiocbq) { |
| 284 | rc = -ENOMEM; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 285 | goto free_bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 286 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 287 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 288 | cmd = &cmdiocbq->iocb; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 289 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 290 | if (!bmp->virt) { |
| 291 | rc = -ENOMEM; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 292 | goto free_cmdiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 293 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 294 | |
| 295 | INIT_LIST_HEAD(&bmp->list); |
| 296 | bpl = (struct ulp_bde64 *) bmp->virt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 297 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 298 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 299 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 300 | busaddr = sg_dma_address(sgel); |
| 301 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 302 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 303 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 304 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 305 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 306 | bpl++; |
| 307 | } |
| 308 | |
| 309 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 310 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 311 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 312 | busaddr = sg_dma_address(sgel); |
| 313 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 314 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 315 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 316 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 317 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 318 | bpl++; |
| 319 | } |
| 320 | |
| 321 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 322 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 323 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 324 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 325 | cmd->un.genreq64.bdl.bdeSize = |
| 326 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 327 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 328 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 329 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 330 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 331 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 332 | cmd->ulpBdeCount = 1; |
| 333 | cmd->ulpLe = 1; |
| 334 | cmd->ulpClass = CLASS3; |
| 335 | cmd->ulpContext = ndlp->nlp_rpi; |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame] | 336 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 337 | cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 338 | cmd->ulpOwner = OWN_CHIP; |
| 339 | cmdiocbq->vport = phba->pport; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 340 | cmdiocbq->context3 = bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 341 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 342 | timeout = phba->fc_ratov * 2; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 343 | cmd->ulpTimeout = timeout; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 344 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 345 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 346 | cmdiocbq->context1 = ndlp; |
| 347 | cmdiocbq->context2 = dd_data; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 348 | dd_data->type = TYPE_IOCB; |
| 349 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 350 | dd_data->context_un.iocb.set_job = job; |
| 351 | dd_data->context_un.iocb.bmp = bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 352 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 353 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 354 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 355 | rc = -EIO ; |
| 356 | goto free_cmdiocbq; |
| 357 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 358 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 359 | writel(creg_val, phba->HCregaddr); |
| 360 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 361 | } |
| 362 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 363 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
| 364 | if (iocb_stat == IOCB_SUCCESS) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 365 | return 0; /* done for now */ |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 366 | else if (iocb_stat == IOCB_BUSY) |
| 367 | rc = -EAGAIN; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 368 | else |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 369 | rc = -EIO; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 370 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 371 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 372 | /* iocb failed so cleanup */ |
| 373 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 374 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 375 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 376 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 377 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 378 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 379 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 380 | free_cmdiocbq: |
| 381 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 382 | free_bmp: |
| 383 | kfree(bmp); |
| 384 | free_ndlp: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 385 | lpfc_nlp_put(ndlp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 386 | no_ndlp: |
| 387 | kfree(dd_data); |
| 388 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 389 | /* make error code available to userspace */ |
| 390 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 391 | job->dd_data = NULL; |
| 392 | return rc; |
| 393 | } |
| 394 | |
| 395 | /** |
| 396 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler |
| 397 | * @phba: Pointer to HBA context object. |
| 398 | * @cmdiocbq: Pointer to command iocb. |
| 399 | * @rspiocbq: Pointer to response iocb. |
| 400 | * |
| 401 | * This function is the completion handler for iocbs issued using |
| 402 | * lpfc_bsg_rport_els_cmp function. This function is called by the |
| 403 | * ring event handler function without any lock held. This function |
| 404 | * can be called from both worker thread context and interrupt |
| 405 | * context. This function also can be called from other thread which |
| 406 | * cleans up the SLI layer objects. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 407 | * This function copies the contents of the response iocb to the |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 408 | * response iocb memory object provided by the caller of |
| 409 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 410 | * sleeps for the iocb completion. |
| 411 | **/ |
| 412 | static void |
| 413 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, |
| 414 | struct lpfc_iocbq *cmdiocbq, |
| 415 | struct lpfc_iocbq *rspiocbq) |
| 416 | { |
| 417 | struct bsg_job_data *dd_data; |
| 418 | struct fc_bsg_job *job; |
| 419 | IOCB_t *rsp; |
| 420 | struct lpfc_nodelist *ndlp; |
| 421 | struct lpfc_dmabuf *pbuflist = NULL; |
| 422 | struct fc_bsg_ctels_reply *els_reply; |
| 423 | uint8_t *rjt_data; |
| 424 | unsigned long flags; |
| 425 | int rc = 0; |
| 426 | |
| 427 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 428 | dd_data = cmdiocbq->context1; |
| 429 | /* normal completion and timeout crossed paths, already done */ |
| 430 | if (!dd_data) { |
Jiri Slaby | 67221a4 | 2010-03-16 16:23:58 +0100 | [diff] [blame] | 431 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 432 | return; |
| 433 | } |
| 434 | |
| 435 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
| 436 | if (cmdiocbq->context2 && rspiocbq) |
| 437 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, |
| 438 | &rspiocbq->iocb, sizeof(IOCB_t)); |
| 439 | |
| 440 | job = dd_data->context_un.iocb.set_job; |
| 441 | cmdiocbq = dd_data->context_un.iocb.cmdiocbq; |
| 442 | rspiocbq = dd_data->context_un.iocb.rspiocbq; |
| 443 | rsp = &rspiocbq->iocb; |
| 444 | ndlp = dd_data->context_un.iocb.ndlp; |
| 445 | |
| 446 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 447 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 448 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 449 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 450 | |
| 451 | if (job->reply->result == -EAGAIN) |
| 452 | rc = -EAGAIN; |
| 453 | else if (rsp->ulpStatus == IOSTAT_SUCCESS) |
| 454 | job->reply->reply_payload_rcv_len = |
| 455 | rsp->un.elsreq64.bdl.bdeSize; |
| 456 | else if (rsp->ulpStatus == IOSTAT_LS_RJT) { |
| 457 | job->reply->reply_payload_rcv_len = |
| 458 | sizeof(struct fc_bsg_ctels_reply); |
| 459 | /* LS_RJT data returned in word 4 */ |
| 460 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; |
| 461 | els_reply = &job->reply->reply_data.ctels_reply; |
| 462 | els_reply->status = FC_CTELS_STATUS_REJECT; |
| 463 | els_reply->rjt_data.action = rjt_data[3]; |
| 464 | els_reply->rjt_data.reason_code = rjt_data[2]; |
| 465 | els_reply->rjt_data.reason_explanation = rjt_data[1]; |
| 466 | els_reply->rjt_data.vendor_unique = rjt_data[0]; |
| 467 | } else |
| 468 | rc = -EIO; |
| 469 | |
| 470 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
| 471 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
| 472 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 473 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 474 | lpfc_nlp_put(ndlp); |
| 475 | kfree(dd_data); |
| 476 | /* make error code available to userspace */ |
| 477 | job->reply->result = rc; |
| 478 | job->dd_data = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 479 | /* complete the job back to userspace */ |
| 480 | job->job_done(job); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 481 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 482 | return; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 483 | } |
| 484 | |
| 485 | /** |
| 486 | * lpfc_bsg_rport_els - send an ELS command from a bsg request |
| 487 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 488 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 489 | static int |
| 490 | lpfc_bsg_rport_els(struct fc_bsg_job *job) |
| 491 | { |
| 492 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 493 | struct lpfc_hba *phba = vport->phba; |
| 494 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 495 | struct lpfc_nodelist *ndlp = rdata->pnode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 496 | uint32_t elscmd; |
| 497 | uint32_t cmdsize; |
| 498 | uint32_t rspsize; |
| 499 | struct lpfc_iocbq *rspiocbq; |
| 500 | struct lpfc_iocbq *cmdiocbq; |
| 501 | IOCB_t *rsp; |
| 502 | uint16_t rpi = 0; |
| 503 | struct lpfc_dmabuf *pcmd; |
| 504 | struct lpfc_dmabuf *prsp; |
| 505 | struct lpfc_dmabuf *pbuflist = NULL; |
| 506 | struct ulp_bde64 *bpl; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 507 | int request_nseg; |
| 508 | int reply_nseg; |
| 509 | struct scatterlist *sgel = NULL; |
| 510 | int numbde; |
| 511 | dma_addr_t busaddr; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 512 | struct bsg_job_data *dd_data; |
| 513 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 514 | int rc = 0; |
| 515 | |
| 516 | /* in case no data is transferred */ |
| 517 | job->reply->reply_payload_rcv_len = 0; |
| 518 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 519 | /* allocate our bsg tracking structure */ |
| 520 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 521 | if (!dd_data) { |
| 522 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 523 | "2735 Failed allocation of dd_data\n"); |
| 524 | rc = -ENOMEM; |
| 525 | goto no_dd_data; |
| 526 | } |
| 527 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 528 | if (!lpfc_nlp_get(ndlp)) { |
| 529 | rc = -ENODEV; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 530 | goto free_dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | elscmd = job->request->rqst_data.r_els.els_code; |
| 534 | cmdsize = job->request_payload.payload_len; |
| 535 | rspsize = job->reply_payload.payload_len; |
| 536 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 537 | if (!rspiocbq) { |
| 538 | lpfc_nlp_put(ndlp); |
| 539 | rc = -ENOMEM; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 540 | goto free_dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 541 | } |
| 542 | |
| 543 | rsp = &rspiocbq->iocb; |
| 544 | rpi = ndlp->nlp_rpi; |
| 545 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 546 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 547 | ndlp->nlp_DID, elscmd); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 548 | if (!cmdiocbq) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 549 | rc = -EIO; |
| 550 | goto free_rspiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 551 | } |
| 552 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 553 | /* prep els iocb set context1 to the ndlp, context2 to the command |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 554 | * dmabuf, context3 holds the data dmabuf |
| 555 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 556 | pcmd = (struct lpfc_dmabuf *) cmdiocbq->context2; |
| 557 | prsp = (struct lpfc_dmabuf *) pcmd->list.next; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 558 | lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys); |
| 559 | kfree(pcmd); |
| 560 | lpfc_mbuf_free(phba, prsp->virt, prsp->phys); |
| 561 | kfree(prsp); |
| 562 | cmdiocbq->context2 = NULL; |
| 563 | |
| 564 | pbuflist = (struct lpfc_dmabuf *) cmdiocbq->context3; |
| 565 | bpl = (struct ulp_bde64 *) pbuflist->virt; |
| 566 | |
| 567 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 568 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 569 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 570 | busaddr = sg_dma_address(sgel); |
| 571 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 572 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 573 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 574 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 575 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 576 | bpl++; |
| 577 | } |
| 578 | |
| 579 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 580 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 581 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 582 | busaddr = sg_dma_address(sgel); |
| 583 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 584 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 585 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 586 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 587 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 588 | bpl++; |
| 589 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 590 | cmdiocbq->iocb.un.elsreq64.bdl.bdeSize = |
| 591 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 592 | cmdiocbq->iocb.ulpContext = rpi; |
| 593 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 594 | cmdiocbq->context1 = NULL; |
| 595 | cmdiocbq->context2 = NULL; |
| 596 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 597 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
| 598 | cmdiocbq->context1 = dd_data; |
| 599 | cmdiocbq->context2 = rspiocbq; |
| 600 | dd_data->type = TYPE_IOCB; |
| 601 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
| 602 | dd_data->context_un.iocb.rspiocbq = rspiocbq; |
| 603 | dd_data->context_un.iocb.set_job = job; |
Justin P. Mattock | 6eab04a | 2011-04-08 19:49:08 -0700 | [diff] [blame] | 604 | dd_data->context_un.iocb.bmp = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 605 | dd_data->context_un.iocb.ndlp = ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 606 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 607 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 608 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 609 | rc = -EIO; |
| 610 | goto linkdown_err; |
| 611 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 612 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 613 | writel(creg_val, phba->HCregaddr); |
| 614 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 615 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 616 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
| 617 | lpfc_nlp_put(ndlp); |
| 618 | if (rc == IOCB_SUCCESS) |
| 619 | return 0; /* done for now */ |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 620 | else if (rc == IOCB_BUSY) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 621 | rc = -EAGAIN; |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 622 | else |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 623 | rc = -EIO; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 624 | |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 625 | linkdown_err: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 626 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 627 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 628 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 629 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 630 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 631 | lpfc_mbuf_free(phba, pbuflist->virt, pbuflist->phys); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 632 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 633 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 634 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 635 | free_rspiocbq: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 636 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 637 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 638 | free_dd_data: |
| 639 | kfree(dd_data); |
| 640 | |
| 641 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 642 | /* make error code available to userspace */ |
| 643 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 644 | job->dd_data = NULL; |
| 645 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 646 | } |
| 647 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 648 | /** |
| 649 | * lpfc_bsg_event_free - frees an allocated event structure |
| 650 | * @kref: Pointer to a kref. |
| 651 | * |
| 652 | * Called from kref_put. Back cast the kref into an event structure address. |
| 653 | * Free any events to get, delete associated nodes, free any events to see, |
| 654 | * free any data then free the event itself. |
| 655 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 656 | static void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 657 | lpfc_bsg_event_free(struct kref *kref) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 658 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 659 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
| 660 | kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 661 | struct event_data *ed; |
| 662 | |
| 663 | list_del(&evt->node); |
| 664 | |
| 665 | while (!list_empty(&evt->events_to_get)) { |
| 666 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); |
| 667 | list_del(&ed->node); |
| 668 | kfree(ed->data); |
| 669 | kfree(ed); |
| 670 | } |
| 671 | |
| 672 | while (!list_empty(&evt->events_to_see)) { |
| 673 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); |
| 674 | list_del(&ed->node); |
| 675 | kfree(ed->data); |
| 676 | kfree(ed); |
| 677 | } |
| 678 | |
| 679 | kfree(evt); |
| 680 | } |
| 681 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 682 | /** |
| 683 | * lpfc_bsg_event_ref - increments the kref for an event |
| 684 | * @evt: Pointer to an event structure. |
| 685 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 686 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 687 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 688 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 689 | kref_get(&evt->kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 690 | } |
| 691 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 692 | /** |
| 693 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure |
| 694 | * @evt: Pointer to an event structure. |
| 695 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 696 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 697 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 698 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 699 | kref_put(&evt->kref, lpfc_bsg_event_free); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 700 | } |
| 701 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 702 | /** |
| 703 | * lpfc_bsg_event_new - allocate and initialize a event structure |
| 704 | * @ev_mask: Mask of events. |
| 705 | * @ev_reg_id: Event reg id. |
| 706 | * @ev_req_id: Event request id. |
| 707 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 708 | static struct lpfc_bsg_event * |
| 709 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) |
| 710 | { |
| 711 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 712 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 713 | if (!evt) |
| 714 | return NULL; |
| 715 | |
| 716 | INIT_LIST_HEAD(&evt->events_to_get); |
| 717 | INIT_LIST_HEAD(&evt->events_to_see); |
| 718 | evt->type_mask = ev_mask; |
| 719 | evt->req_id = ev_req_id; |
| 720 | evt->reg_id = ev_reg_id; |
| 721 | evt->wait_time_stamp = jiffies; |
| 722 | init_waitqueue_head(&evt->wq); |
| 723 | kref_init(&evt->kref); |
| 724 | return evt; |
| 725 | } |
| 726 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 727 | /** |
| 728 | * diag_cmd_data_free - Frees an lpfc dma buffer extension |
| 729 | * @phba: Pointer to HBA context object. |
| 730 | * @mlist: Pointer to an lpfc dma buffer extension. |
| 731 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 732 | static int |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 733 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 734 | { |
| 735 | struct lpfc_dmabufext *mlast; |
| 736 | struct pci_dev *pcidev; |
| 737 | struct list_head head, *curr, *next; |
| 738 | |
| 739 | if ((!mlist) || (!lpfc_is_link_up(phba) && |
| 740 | (phba->link_flag & LS_LOOPBACK_MODE))) { |
| 741 | return 0; |
| 742 | } |
| 743 | |
| 744 | pcidev = phba->pcidev; |
| 745 | list_add_tail(&head, &mlist->dma.list); |
| 746 | |
| 747 | list_for_each_safe(curr, next, &head) { |
| 748 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); |
| 749 | if (mlast->dma.virt) |
| 750 | dma_free_coherent(&pcidev->dev, |
| 751 | mlast->size, |
| 752 | mlast->dma.virt, |
| 753 | mlast->dma.phys); |
| 754 | kfree(mlast); |
| 755 | } |
| 756 | return 0; |
| 757 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 758 | |
| 759 | /** |
| 760 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command |
| 761 | * @phba: |
| 762 | * @pring: |
| 763 | * @piocbq: |
| 764 | * |
| 765 | * This function is called when an unsolicited CT command is received. It |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 766 | * forwards the event to any processes registered to receive CT events. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 767 | **/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 768 | int |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 769 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 770 | struct lpfc_iocbq *piocbq) |
| 771 | { |
| 772 | uint32_t evt_req_id = 0; |
| 773 | uint32_t cmd; |
| 774 | uint32_t len; |
| 775 | struct lpfc_dmabuf *dmabuf = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 776 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 777 | struct event_data *evt_dat = NULL; |
| 778 | struct lpfc_iocbq *iocbq; |
| 779 | size_t offset = 0; |
| 780 | struct list_head head; |
| 781 | struct ulp_bde64 *bde; |
| 782 | dma_addr_t dma_addr; |
| 783 | int i; |
| 784 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; |
| 785 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; |
| 786 | struct lpfc_hbq_entry *hbqe; |
| 787 | struct lpfc_sli_ct_request *ct_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 788 | struct fc_bsg_job *job = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 789 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 790 | int size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 791 | |
| 792 | INIT_LIST_HEAD(&head); |
| 793 | list_add_tail(&head, &piocbq->list); |
| 794 | |
| 795 | if (piocbq->iocb.ulpBdeCount == 0 || |
| 796 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) |
| 797 | goto error_ct_unsol_exit; |
| 798 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 799 | if (phba->link_state == LPFC_HBA_ERROR || |
| 800 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) |
| 801 | goto error_ct_unsol_exit; |
| 802 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 803 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
| 804 | dmabuf = bdeBuf1; |
| 805 | else { |
| 806 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, |
| 807 | piocbq->iocb.un.cont64[0].addrLow); |
| 808 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); |
| 809 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 810 | if (dmabuf == NULL) |
| 811 | goto error_ct_unsol_exit; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 812 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
| 813 | evt_req_id = ct_req->FsType; |
| 814 | cmd = ct_req->CommandResponse.bits.CmdRsp; |
| 815 | len = ct_req->CommandResponse.bits.Size; |
| 816 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
| 817 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); |
| 818 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 819 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 820 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 821 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
| 822 | evt->req_id != evt_req_id) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 823 | continue; |
| 824 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 825 | lpfc_bsg_event_ref(evt); |
| 826 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 827 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 828 | if (evt_dat == NULL) { |
| 829 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 830 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 831 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 832 | "2614 Memory allocation failed for " |
| 833 | "CT event\n"); |
| 834 | break; |
| 835 | } |
| 836 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 837 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 838 | /* take accumulated byte count from the last iocbq */ |
| 839 | iocbq = list_entry(head.prev, typeof(*iocbq), list); |
| 840 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; |
| 841 | } else { |
| 842 | list_for_each_entry(iocbq, &head, list) { |
| 843 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) |
| 844 | evt_dat->len += |
| 845 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; |
| 846 | } |
| 847 | } |
| 848 | |
| 849 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 850 | if (evt_dat->data == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 851 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 852 | "2615 Memory allocation failed for " |
| 853 | "CT event data, size %d\n", |
| 854 | evt_dat->len); |
| 855 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 856 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 857 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 858 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 859 | goto error_ct_unsol_exit; |
| 860 | } |
| 861 | |
| 862 | list_for_each_entry(iocbq, &head, list) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 863 | size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 864 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 865 | bdeBuf1 = iocbq->context2; |
| 866 | bdeBuf2 = iocbq->context3; |
| 867 | } |
| 868 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 869 | if (phba->sli3_options & |
| 870 | LPFC_SLI3_HBQ_ENABLED) { |
| 871 | if (i == 0) { |
| 872 | hbqe = (struct lpfc_hbq_entry *) |
| 873 | &iocbq->iocb.un.ulpWord[0]; |
| 874 | size = hbqe->bde.tus.f.bdeSize; |
| 875 | dmabuf = bdeBuf1; |
| 876 | } else if (i == 1) { |
| 877 | hbqe = (struct lpfc_hbq_entry *) |
| 878 | &iocbq->iocb.unsli3. |
| 879 | sli3Words[4]; |
| 880 | size = hbqe->bde.tus.f.bdeSize; |
| 881 | dmabuf = bdeBuf2; |
| 882 | } |
| 883 | if ((offset + size) > evt_dat->len) |
| 884 | size = evt_dat->len - offset; |
| 885 | } else { |
| 886 | size = iocbq->iocb.un.cont64[i]. |
| 887 | tus.f.bdeSize; |
| 888 | bde = &iocbq->iocb.un.cont64[i]; |
| 889 | dma_addr = getPaddr(bde->addrHigh, |
| 890 | bde->addrLow); |
| 891 | dmabuf = lpfc_sli_ringpostbuf_get(phba, |
| 892 | pring, dma_addr); |
| 893 | } |
| 894 | if (!dmabuf) { |
| 895 | lpfc_printf_log(phba, KERN_ERR, |
| 896 | LOG_LIBDFC, "2616 No dmabuf " |
| 897 | "found for iocbq 0x%p\n", |
| 898 | iocbq); |
| 899 | kfree(evt_dat->data); |
| 900 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 901 | spin_lock_irqsave(&phba->ct_ev_lock, |
| 902 | flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 903 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 904 | spin_unlock_irqrestore( |
| 905 | &phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 906 | goto error_ct_unsol_exit; |
| 907 | } |
| 908 | memcpy((char *)(evt_dat->data) + offset, |
| 909 | dmabuf->virt, size); |
| 910 | offset += size; |
| 911 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && |
| 912 | !(phba->sli3_options & |
| 913 | LPFC_SLI3_HBQ_ENABLED)) { |
| 914 | lpfc_sli_ringpostbuf_put(phba, pring, |
| 915 | dmabuf); |
| 916 | } else { |
| 917 | switch (cmd) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 918 | case ELX_LOOPBACK_DATA: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 919 | diag_cmd_data_free(phba, |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 920 | (struct lpfc_dmabufext *) |
| 921 | dmabuf); |
| 922 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 923 | case ELX_LOOPBACK_XRI_SETUP: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 924 | if ((phba->sli_rev == |
| 925 | LPFC_SLI_REV2) || |
| 926 | (phba->sli3_options & |
| 927 | LPFC_SLI3_HBQ_ENABLED |
| 928 | )) { |
| 929 | lpfc_in_buf_free(phba, |
| 930 | dmabuf); |
| 931 | } else { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 932 | lpfc_post_buffer(phba, |
| 933 | pring, |
| 934 | 1); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 935 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 936 | break; |
| 937 | default: |
| 938 | if (!(phba->sli3_options & |
| 939 | LPFC_SLI3_HBQ_ENABLED)) |
| 940 | lpfc_post_buffer(phba, |
| 941 | pring, |
| 942 | 1); |
| 943 | break; |
| 944 | } |
| 945 | } |
| 946 | } |
| 947 | } |
| 948 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 949 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 950 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 951 | evt_dat->immed_dat = phba->ctx_idx; |
| 952 | phba->ctx_idx = (phba->ctx_idx + 1) % 64; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 953 | /* Provide warning for over-run of the ct_ctx array */ |
| 954 | if (phba->ct_ctx[evt_dat->immed_dat].flags & |
| 955 | UNSOL_VALID) |
| 956 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 957 | "2717 CT context array entry " |
| 958 | "[%d] over-run: oxid:x%x, " |
| 959 | "sid:x%x\n", phba->ctx_idx, |
| 960 | phba->ct_ctx[ |
| 961 | evt_dat->immed_dat].oxid, |
| 962 | phba->ct_ctx[ |
| 963 | evt_dat->immed_dat].SID); |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 964 | phba->ct_ctx[evt_dat->immed_dat].rxid = |
| 965 | piocbq->iocb.ulpContext; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 966 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 967 | piocbq->iocb.unsli3.rcvsli3.ox_id; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 968 | phba->ct_ctx[evt_dat->immed_dat].SID = |
| 969 | piocbq->iocb.un.rcvels.remoteID; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 970 | phba->ct_ctx[evt_dat->immed_dat].flags = UNSOL_VALID; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 971 | } else |
| 972 | evt_dat->immed_dat = piocbq->iocb.ulpContext; |
| 973 | |
| 974 | evt_dat->type = FC_REG_CT_EVENT; |
| 975 | list_add(&evt_dat->node, &evt->events_to_see); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 976 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
| 977 | wake_up_interruptible(&evt->wq); |
| 978 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 979 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 980 | } |
| 981 | |
| 982 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 983 | lpfc_bsg_event_unref(evt); |
| 984 | |
| 985 | job = evt->set_job; |
| 986 | evt->set_job = NULL; |
| 987 | if (job) { |
| 988 | job->reply->reply_payload_rcv_len = size; |
| 989 | /* make error code available to userspace */ |
| 990 | job->reply->result = 0; |
| 991 | job->dd_data = NULL; |
| 992 | /* complete the job back to userspace */ |
| 993 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 994 | job->job_done(job); |
| 995 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 996 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 997 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 998 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 999 | |
| 1000 | error_ct_unsol_exit: |
| 1001 | if (!list_empty(&head)) |
| 1002 | list_del(&head); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1003 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) |
| 1004 | return 0; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1005 | return 1; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1006 | } |
| 1007 | |
| 1008 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1009 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1010 | * @job: SET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1011 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1012 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1013 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1014 | { |
| 1015 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1016 | struct lpfc_hba *phba = vport->phba; |
| 1017 | struct set_ct_event *event_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1018 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1019 | int rc = 0; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1020 | struct bsg_job_data *dd_data = NULL; |
| 1021 | uint32_t ev_mask; |
| 1022 | unsigned long flags; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1023 | |
| 1024 | if (job->request_len < |
| 1025 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { |
| 1026 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1027 | "2612 Received SET_CT_EVENT below minimum " |
| 1028 | "size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1029 | rc = -EINVAL; |
| 1030 | goto job_error; |
| 1031 | } |
| 1032 | |
| 1033 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1034 | if (dd_data == NULL) { |
| 1035 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1036 | "2734 Failed allocation of dd_data\n"); |
| 1037 | rc = -ENOMEM; |
| 1038 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1039 | } |
| 1040 | |
| 1041 | event_req = (struct set_ct_event *) |
| 1042 | job->request->rqst_data.h_vendor.vendor_cmd; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1043 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
| 1044 | FC_REG_EVENT_MASK); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1045 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1046 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
| 1047 | if (evt->reg_id == event_req->ev_reg_id) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1048 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1049 | evt->wait_time_stamp = jiffies; |
| 1050 | break; |
| 1051 | } |
| 1052 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1053 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1054 | |
| 1055 | if (&evt->node == &phba->ct_ev_waiters) { |
| 1056 | /* no event waiting struct yet - first call */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1057 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1058 | event_req->ev_req_id); |
| 1059 | if (!evt) { |
| 1060 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1061 | "2617 Failed allocation of event " |
| 1062 | "waiter\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1063 | rc = -ENOMEM; |
| 1064 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1065 | } |
| 1066 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1067 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1068 | list_add(&evt->node, &phba->ct_ev_waiters); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1069 | lpfc_bsg_event_ref(evt); |
| 1070 | evt->wait_time_stamp = jiffies; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1071 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1072 | } |
| 1073 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1074 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1075 | evt->waiting = 1; |
| 1076 | dd_data->type = TYPE_EVT; |
| 1077 | dd_data->context_un.evt = evt; |
| 1078 | evt->set_job = job; /* for unsolicited command */ |
| 1079 | job->dd_data = dd_data; /* for fc transport timeout callback*/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1080 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1081 | return 0; /* call job done later */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1082 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1083 | job_error: |
| 1084 | if (dd_data != NULL) |
| 1085 | kfree(dd_data); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1086 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1087 | job->dd_data = NULL; |
| 1088 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1092 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1093 | * @job: GET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1094 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1095 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1096 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1097 | { |
| 1098 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1099 | struct lpfc_hba *phba = vport->phba; |
| 1100 | struct get_ct_event *event_req; |
| 1101 | struct get_ct_event_reply *event_reply; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1102 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1103 | struct event_data *evt_dat = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1104 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1105 | uint32_t rc = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1106 | |
| 1107 | if (job->request_len < |
| 1108 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { |
| 1109 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1110 | "2613 Received GET_CT_EVENT request below " |
| 1111 | "minimum size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1112 | rc = -EINVAL; |
| 1113 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1114 | } |
| 1115 | |
| 1116 | event_req = (struct get_ct_event *) |
| 1117 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1118 | |
| 1119 | event_reply = (struct get_ct_event_reply *) |
| 1120 | job->reply->reply_data.vendor_reply.vendor_rsp; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1121 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1122 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
| 1123 | if (evt->reg_id == event_req->ev_reg_id) { |
| 1124 | if (list_empty(&evt->events_to_get)) |
| 1125 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1126 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1127 | evt->wait_time_stamp = jiffies; |
| 1128 | evt_dat = list_entry(evt->events_to_get.prev, |
| 1129 | struct event_data, node); |
| 1130 | list_del(&evt_dat->node); |
| 1131 | break; |
| 1132 | } |
| 1133 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1134 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1135 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1136 | /* The app may continue to ask for event data until it gets |
| 1137 | * an error indicating that there isn't anymore |
| 1138 | */ |
| 1139 | if (evt_dat == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1140 | job->reply->reply_payload_rcv_len = 0; |
| 1141 | rc = -ENOENT; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1142 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1143 | } |
| 1144 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1145 | if (evt_dat->len > job->request_payload.payload_len) { |
| 1146 | evt_dat->len = job->request_payload.payload_len; |
| 1147 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1148 | "2618 Truncated event data at %d " |
| 1149 | "bytes\n", |
| 1150 | job->request_payload.payload_len); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1151 | } |
| 1152 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1153 | event_reply->type = evt_dat->type; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1154 | event_reply->immed_data = evt_dat->immed_dat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1155 | if (evt_dat->len > 0) |
| 1156 | job->reply->reply_payload_rcv_len = |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1157 | sg_copy_from_buffer(job->request_payload.sg_list, |
| 1158 | job->request_payload.sg_cnt, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1159 | evt_dat->data, evt_dat->len); |
| 1160 | else |
| 1161 | job->reply->reply_payload_rcv_len = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1162 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1163 | if (evt_dat) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1164 | kfree(evt_dat->data); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1165 | kfree(evt_dat); |
| 1166 | } |
| 1167 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1168 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1169 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1170 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1171 | job->dd_data = NULL; |
| 1172 | job->reply->result = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1173 | job->job_done(job); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1174 | return 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1175 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1176 | job_error: |
| 1177 | job->dd_data = NULL; |
| 1178 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1179 | return rc; |
| 1180 | } |
| 1181 | |
| 1182 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1183 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
| 1184 | * @phba: Pointer to HBA context object. |
| 1185 | * @cmdiocbq: Pointer to command iocb. |
| 1186 | * @rspiocbq: Pointer to response iocb. |
| 1187 | * |
| 1188 | * This function is the completion handler for iocbs issued using |
| 1189 | * lpfc_issue_ct_rsp_cmp function. This function is called by the |
| 1190 | * ring event handler function without any lock held. This function |
| 1191 | * can be called from both worker thread context and interrupt |
| 1192 | * context. This function also can be called from other thread which |
| 1193 | * cleans up the SLI layer objects. |
| 1194 | * This function copy the contents of the response iocb to the |
| 1195 | * response iocb memory object provided by the caller of |
| 1196 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 1197 | * sleeps for the iocb completion. |
| 1198 | **/ |
| 1199 | static void |
| 1200 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, |
| 1201 | struct lpfc_iocbq *cmdiocbq, |
| 1202 | struct lpfc_iocbq *rspiocbq) |
| 1203 | { |
| 1204 | struct bsg_job_data *dd_data; |
| 1205 | struct fc_bsg_job *job; |
| 1206 | IOCB_t *rsp; |
| 1207 | struct lpfc_dmabuf *bmp; |
| 1208 | struct lpfc_nodelist *ndlp; |
| 1209 | unsigned long flags; |
| 1210 | int rc = 0; |
| 1211 | |
| 1212 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 1213 | dd_data = cmdiocbq->context2; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1214 | /* normal completion and timeout crossed paths, already done */ |
| 1215 | if (!dd_data) { |
Jiri Slaby | 67221a4 | 2010-03-16 16:23:58 +0100 | [diff] [blame] | 1216 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1217 | return; |
| 1218 | } |
| 1219 | |
| 1220 | job = dd_data->context_un.iocb.set_job; |
| 1221 | bmp = dd_data->context_un.iocb.bmp; |
| 1222 | rsp = &rspiocbq->iocb; |
| 1223 | ndlp = dd_data->context_un.iocb.ndlp; |
| 1224 | |
| 1225 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 1226 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1227 | |
| 1228 | if (rsp->ulpStatus) { |
| 1229 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 1230 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 1231 | case IOERR_SEQUENCE_TIMEOUT: |
| 1232 | rc = -ETIMEDOUT; |
| 1233 | break; |
| 1234 | case IOERR_INVALID_RPI: |
| 1235 | rc = -EFAULT; |
| 1236 | break; |
| 1237 | default: |
| 1238 | rc = -EACCES; |
| 1239 | break; |
| 1240 | } |
| 1241 | } else |
| 1242 | rc = -EACCES; |
| 1243 | } else |
| 1244 | job->reply->reply_payload_rcv_len = |
| 1245 | rsp->un.genreq64.bdl.bdeSize; |
| 1246 | |
| 1247 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 1248 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 1249 | lpfc_nlp_put(ndlp); |
| 1250 | kfree(bmp); |
| 1251 | kfree(dd_data); |
| 1252 | /* make error code available to userspace */ |
| 1253 | job->reply->result = rc; |
| 1254 | job->dd_data = NULL; |
| 1255 | /* complete the job back to userspace */ |
| 1256 | job->job_done(job); |
| 1257 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1258 | return; |
| 1259 | } |
| 1260 | |
| 1261 | /** |
| 1262 | * lpfc_issue_ct_rsp - issue a ct response |
| 1263 | * @phba: Pointer to HBA context object. |
| 1264 | * @job: Pointer to the job object. |
| 1265 | * @tag: tag index value into the ports context exchange array. |
| 1266 | * @bmp: Pointer to a dma buffer descriptor. |
| 1267 | * @num_entry: Number of enties in the bde. |
| 1268 | **/ |
| 1269 | static int |
| 1270 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
| 1271 | struct lpfc_dmabuf *bmp, int num_entry) |
| 1272 | { |
| 1273 | IOCB_t *icmd; |
| 1274 | struct lpfc_iocbq *ctiocb = NULL; |
| 1275 | int rc = 0; |
| 1276 | struct lpfc_nodelist *ndlp = NULL; |
| 1277 | struct bsg_job_data *dd_data; |
| 1278 | uint32_t creg_val; |
| 1279 | |
| 1280 | /* allocate our bsg tracking structure */ |
| 1281 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1282 | if (!dd_data) { |
| 1283 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1284 | "2736 Failed allocation of dd_data\n"); |
| 1285 | rc = -ENOMEM; |
| 1286 | goto no_dd_data; |
| 1287 | } |
| 1288 | |
| 1289 | /* Allocate buffer for command iocb */ |
| 1290 | ctiocb = lpfc_sli_get_iocbq(phba); |
| 1291 | if (!ctiocb) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1292 | rc = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1293 | goto no_ctiocb; |
| 1294 | } |
| 1295 | |
| 1296 | icmd = &ctiocb->iocb; |
| 1297 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
| 1298 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 1299 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 1300 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 1301 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); |
| 1302 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 1303 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 1304 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; |
| 1305 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 1306 | |
| 1307 | /* Fill in rest of iocb */ |
| 1308 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 1309 | icmd->ulpBdeCount = 1; |
| 1310 | icmd->ulpLe = 1; |
| 1311 | icmd->ulpClass = CLASS3; |
| 1312 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 1313 | /* Do not issue unsol response if oxid not marked as valid */ |
| 1314 | if (!(phba->ct_ctx[tag].flags & UNSOL_VALID)) { |
| 1315 | rc = IOCB_ERROR; |
| 1316 | goto issue_ct_rsp_exit; |
| 1317 | } |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1318 | icmd->ulpContext = phba->ct_ctx[tag].rxid; |
| 1319 | icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1320 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
| 1321 | if (!ndlp) { |
| 1322 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 1323 | "2721 ndlp null for oxid %x SID %x\n", |
| 1324 | icmd->ulpContext, |
| 1325 | phba->ct_ctx[tag].SID); |
| 1326 | rc = IOCB_ERROR; |
| 1327 | goto issue_ct_rsp_exit; |
| 1328 | } |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1329 | |
| 1330 | /* Check if the ndlp is active */ |
| 1331 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
| 1332 | rc = -IOCB_ERROR; |
| 1333 | goto issue_ct_rsp_exit; |
| 1334 | } |
| 1335 | |
| 1336 | /* get a refernece count so the ndlp doesn't go away while |
| 1337 | * we respond |
| 1338 | */ |
| 1339 | if (!lpfc_nlp_get(ndlp)) { |
| 1340 | rc = -IOCB_ERROR; |
| 1341 | goto issue_ct_rsp_exit; |
| 1342 | } |
| 1343 | |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1344 | icmd->un.ulpWord[3] = |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame] | 1345 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
| 1346 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1347 | /* The exchange is done, mark the entry as invalid */ |
| 1348 | phba->ct_ctx[tag].flags &= ~UNSOL_VALID; |
| 1349 | } else |
| 1350 | icmd->ulpContext = (ushort) tag; |
| 1351 | |
| 1352 | icmd->ulpTimeout = phba->fc_ratov * 2; |
| 1353 | |
| 1354 | /* Xmit CT response on exchange <xid> */ |
| 1355 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1356 | "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n", |
| 1357 | icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1358 | |
| 1359 | ctiocb->iocb_cmpl = NULL; |
| 1360 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; |
| 1361 | ctiocb->vport = phba->pport; |
| 1362 | ctiocb->context3 = bmp; |
| 1363 | |
| 1364 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 1365 | ctiocb->context2 = dd_data; |
| 1366 | ctiocb->context1 = ndlp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1367 | dd_data->type = TYPE_IOCB; |
| 1368 | dd_data->context_un.iocb.cmdiocbq = ctiocb; |
| 1369 | dd_data->context_un.iocb.rspiocbq = NULL; |
| 1370 | dd_data->context_un.iocb.set_job = job; |
| 1371 | dd_data->context_un.iocb.bmp = bmp; |
| 1372 | dd_data->context_un.iocb.ndlp = ndlp; |
| 1373 | |
| 1374 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 1375 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 1376 | rc = -IOCB_ERROR; |
| 1377 | goto issue_ct_rsp_exit; |
| 1378 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1379 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 1380 | writel(creg_val, phba->HCregaddr); |
| 1381 | readl(phba->HCregaddr); /* flush */ |
| 1382 | } |
| 1383 | |
| 1384 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
| 1385 | |
| 1386 | if (rc == IOCB_SUCCESS) |
| 1387 | return 0; /* done for now */ |
| 1388 | |
| 1389 | issue_ct_rsp_exit: |
| 1390 | lpfc_sli_release_iocbq(phba, ctiocb); |
| 1391 | no_ctiocb: |
| 1392 | kfree(dd_data); |
| 1393 | no_dd_data: |
| 1394 | return rc; |
| 1395 | } |
| 1396 | |
| 1397 | /** |
| 1398 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
| 1399 | * @job: SEND_MGMT_RESP fc_bsg_job |
| 1400 | **/ |
| 1401 | static int |
| 1402 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) |
| 1403 | { |
| 1404 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1405 | struct lpfc_hba *phba = vport->phba; |
| 1406 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) |
| 1407 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1408 | struct ulp_bde64 *bpl; |
| 1409 | struct lpfc_dmabuf *bmp = NULL; |
| 1410 | struct scatterlist *sgel = NULL; |
| 1411 | int request_nseg; |
| 1412 | int numbde; |
| 1413 | dma_addr_t busaddr; |
| 1414 | uint32_t tag = mgmt_resp->tag; |
| 1415 | unsigned long reqbfrcnt = |
| 1416 | (unsigned long)job->request_payload.payload_len; |
| 1417 | int rc = 0; |
| 1418 | |
| 1419 | /* in case no data is transferred */ |
| 1420 | job->reply->reply_payload_rcv_len = 0; |
| 1421 | |
| 1422 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { |
| 1423 | rc = -ERANGE; |
| 1424 | goto send_mgmt_rsp_exit; |
| 1425 | } |
| 1426 | |
| 1427 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 1428 | if (!bmp) { |
| 1429 | rc = -ENOMEM; |
| 1430 | goto send_mgmt_rsp_exit; |
| 1431 | } |
| 1432 | |
| 1433 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 1434 | if (!bmp->virt) { |
| 1435 | rc = -ENOMEM; |
| 1436 | goto send_mgmt_rsp_free_bmp; |
| 1437 | } |
| 1438 | |
| 1439 | INIT_LIST_HEAD(&bmp->list); |
| 1440 | bpl = (struct ulp_bde64 *) bmp->virt; |
| 1441 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 1442 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1443 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 1444 | busaddr = sg_dma_address(sgel); |
| 1445 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 1446 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 1447 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 1448 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 1449 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 1450 | bpl++; |
| 1451 | } |
| 1452 | |
| 1453 | rc = lpfc_issue_ct_rsp(phba, job, tag, bmp, request_nseg); |
| 1454 | |
| 1455 | if (rc == IOCB_SUCCESS) |
| 1456 | return 0; /* done for now */ |
| 1457 | |
| 1458 | /* TBD need to handle a timeout */ |
| 1459 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 1460 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 1461 | rc = -EACCES; |
| 1462 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 1463 | |
| 1464 | send_mgmt_rsp_free_bmp: |
| 1465 | kfree(bmp); |
| 1466 | send_mgmt_rsp_exit: |
| 1467 | /* make error code available to userspace */ |
| 1468 | job->reply->result = rc; |
| 1469 | job->dd_data = NULL; |
| 1470 | return rc; |
| 1471 | } |
| 1472 | |
| 1473 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1474 | * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode |
| 1475 | * @phba: Pointer to HBA context object. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1476 | * |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1477 | * This function is responsible for preparing driver for diag loopback |
| 1478 | * on device. |
| 1479 | */ |
| 1480 | static int |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1481 | lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba) |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1482 | { |
| 1483 | struct lpfc_vport **vports; |
| 1484 | struct Scsi_Host *shost; |
| 1485 | struct lpfc_sli *psli; |
| 1486 | struct lpfc_sli_ring *pring; |
| 1487 | int i = 0; |
| 1488 | |
| 1489 | psli = &phba->sli; |
| 1490 | if (!psli) |
| 1491 | return -ENODEV; |
| 1492 | |
| 1493 | pring = &psli->ring[LPFC_FCP_RING]; |
| 1494 | if (!pring) |
| 1495 | return -ENODEV; |
| 1496 | |
| 1497 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 1498 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 1499 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) |
| 1500 | return -EACCES; |
| 1501 | |
| 1502 | vports = lpfc_create_vport_work_array(phba); |
| 1503 | if (vports) { |
| 1504 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1505 | shost = lpfc_shost_from_vport(vports[i]); |
| 1506 | scsi_block_requests(shost); |
| 1507 | } |
| 1508 | lpfc_destroy_vport_work_array(phba, vports); |
| 1509 | } else { |
| 1510 | shost = lpfc_shost_from_vport(phba->pport); |
| 1511 | scsi_block_requests(shost); |
| 1512 | } |
| 1513 | |
| 1514 | while (pring->txcmplq_cnt) { |
| 1515 | if (i++ > 500) /* wait up to 5 seconds */ |
| 1516 | break; |
| 1517 | msleep(10); |
| 1518 | } |
| 1519 | return 0; |
| 1520 | } |
| 1521 | |
| 1522 | /** |
| 1523 | * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode |
| 1524 | * @phba: Pointer to HBA context object. |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1525 | * |
| 1526 | * This function is responsible for driver exit processing of setting up |
| 1527 | * diag loopback mode on device. |
| 1528 | */ |
| 1529 | static void |
| 1530 | lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba) |
| 1531 | { |
| 1532 | struct Scsi_Host *shost; |
| 1533 | struct lpfc_vport **vports; |
| 1534 | int i; |
| 1535 | |
| 1536 | vports = lpfc_create_vport_work_array(phba); |
| 1537 | if (vports) { |
| 1538 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1539 | shost = lpfc_shost_from_vport(vports[i]); |
| 1540 | scsi_unblock_requests(shost); |
| 1541 | } |
| 1542 | lpfc_destroy_vport_work_array(phba, vports); |
| 1543 | } else { |
| 1544 | shost = lpfc_shost_from_vport(phba->pport); |
| 1545 | scsi_unblock_requests(shost); |
| 1546 | } |
| 1547 | return; |
| 1548 | } |
| 1549 | |
| 1550 | /** |
| 1551 | * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command |
| 1552 | * @phba: Pointer to HBA context object. |
| 1553 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 1554 | * |
| 1555 | * This function is responsible for placing an sli3 port into diagnostic |
| 1556 | * loopback mode in order to perform a diagnostic loopback test. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1557 | * All new scsi requests are blocked, a small delay is used to allow the |
| 1558 | * scsi requests to complete then the link is brought down. If the link is |
| 1559 | * is placed in loopback mode then scsi requests are again allowed |
| 1560 | * so the scsi mid-layer doesn't give up on the port. |
| 1561 | * All of this is done in-line. |
| 1562 | */ |
| 1563 | static int |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1564 | lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1565 | { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1566 | struct diag_mode_set *loopback_mode; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1567 | uint32_t link_flags; |
| 1568 | uint32_t timeout; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1569 | LPFC_MBOXQ_t *pmboxq; |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 1570 | int mbxstatus = MBX_SUCCESS; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1571 | int i = 0; |
| 1572 | int rc = 0; |
| 1573 | |
| 1574 | /* no data to return just the return code */ |
| 1575 | job->reply->reply_payload_rcv_len = 0; |
| 1576 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1577 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 1578 | sizeof(struct diag_mode_set)) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1579 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1580 | "2738 Received DIAG MODE request size:%d " |
| 1581 | "below the minimum size:%d\n", |
| 1582 | job->request_len, |
| 1583 | (int)(sizeof(struct fc_bsg_request) + |
| 1584 | sizeof(struct diag_mode_set))); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1585 | rc = -EINVAL; |
| 1586 | goto job_error; |
| 1587 | } |
| 1588 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1589 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1590 | if (rc) |
| 1591 | goto job_error; |
| 1592 | |
| 1593 | /* bring the link to diagnostic mode */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1594 | loopback_mode = (struct diag_mode_set *) |
| 1595 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1596 | link_flags = loopback_mode->type; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 1597 | timeout = loopback_mode->timeout * 100; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1598 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1599 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1600 | if (!pmboxq) { |
| 1601 | rc = -ENOMEM; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1602 | goto loopback_mode_exit; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1603 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1604 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1605 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; |
| 1606 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1607 | |
| 1608 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1609 | |
| 1610 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { |
| 1611 | /* wait for link down before proceeding */ |
| 1612 | i = 0; |
| 1613 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 1614 | if (i++ > timeout) { |
| 1615 | rc = -ETIMEDOUT; |
| 1616 | goto loopback_mode_exit; |
| 1617 | } |
| 1618 | |
| 1619 | msleep(10); |
| 1620 | } |
| 1621 | |
| 1622 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1623 | if (link_flags == INTERNAL_LOOP_BACK) |
| 1624 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; |
| 1625 | else |
| 1626 | pmboxq->u.mb.un.varInitLnk.link_flags = |
| 1627 | FLAGS_TOPOLOGY_MODE_LOOP; |
| 1628 | |
| 1629 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; |
| 1630 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1631 | |
| 1632 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, |
| 1633 | LPFC_MBOX_TMO); |
| 1634 | |
| 1635 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) |
| 1636 | rc = -ENODEV; |
| 1637 | else { |
| 1638 | phba->link_flag |= LS_LOOPBACK_MODE; |
| 1639 | /* wait for the link attention interrupt */ |
| 1640 | msleep(100); |
| 1641 | |
| 1642 | i = 0; |
| 1643 | while (phba->link_state != LPFC_HBA_READY) { |
| 1644 | if (i++ > timeout) { |
| 1645 | rc = -ETIMEDOUT; |
| 1646 | break; |
| 1647 | } |
| 1648 | |
| 1649 | msleep(10); |
| 1650 | } |
| 1651 | } |
| 1652 | |
| 1653 | } else |
| 1654 | rc = -ENODEV; |
| 1655 | |
| 1656 | loopback_mode_exit: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1657 | lpfc_bsg_diag_mode_exit(phba); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1658 | |
| 1659 | /* |
| 1660 | * Let SLI layer release mboxq if mbox command completed after timeout. |
| 1661 | */ |
| 1662 | if (mbxstatus != MBX_TIMEOUT) |
| 1663 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1664 | |
| 1665 | job_error: |
| 1666 | /* make error code available to userspace */ |
| 1667 | job->reply->result = rc; |
| 1668 | /* complete the job back to userspace if no error */ |
| 1669 | if (rc == 0) |
| 1670 | job->job_done(job); |
| 1671 | return rc; |
| 1672 | } |
| 1673 | |
| 1674 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1675 | * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state |
| 1676 | * @phba: Pointer to HBA context object. |
| 1677 | * @diag: Flag for set link to diag or nomral operation state. |
| 1678 | * |
| 1679 | * This function is responsible for issuing a sli4 mailbox command for setting |
| 1680 | * link to either diag state or normal operation state. |
| 1681 | */ |
| 1682 | static int |
| 1683 | lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag) |
| 1684 | { |
| 1685 | LPFC_MBOXQ_t *pmboxq; |
| 1686 | struct lpfc_mbx_set_link_diag_state *link_diag_state; |
| 1687 | uint32_t req_len, alloc_len; |
| 1688 | int mbxstatus = MBX_SUCCESS, rc; |
| 1689 | |
| 1690 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1691 | if (!pmboxq) |
| 1692 | return -ENOMEM; |
| 1693 | |
| 1694 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
| 1695 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 1696 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 1697 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, |
| 1698 | req_len, LPFC_SLI4_MBX_EMBED); |
| 1699 | if (alloc_len != req_len) { |
| 1700 | rc = -ENOMEM; |
| 1701 | goto link_diag_state_set_out; |
| 1702 | } |
| 1703 | link_diag_state = &pmboxq->u.mqe.un.link_diag_state; |
| 1704 | bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req, |
| 1705 | phba->sli4_hba.link_state.number); |
| 1706 | bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req, |
| 1707 | phba->sli4_hba.link_state.type); |
| 1708 | if (diag) |
| 1709 | bf_set(lpfc_mbx_set_diag_state_diag, |
| 1710 | &link_diag_state->u.req, 1); |
| 1711 | else |
| 1712 | bf_set(lpfc_mbx_set_diag_state_diag, |
| 1713 | &link_diag_state->u.req, 0); |
| 1714 | |
| 1715 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1716 | |
| 1717 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) |
| 1718 | rc = 0; |
| 1719 | else |
| 1720 | rc = -ENODEV; |
| 1721 | |
| 1722 | link_diag_state_set_out: |
| 1723 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) |
| 1724 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1725 | |
| 1726 | return rc; |
| 1727 | } |
| 1728 | |
| 1729 | /** |
| 1730 | * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command |
| 1731 | * @phba: Pointer to HBA context object. |
| 1732 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 1733 | * |
| 1734 | * This function is responsible for placing an sli4 port into diagnostic |
| 1735 | * loopback mode in order to perform a diagnostic loopback test. |
| 1736 | */ |
| 1737 | static int |
| 1738 | lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
| 1739 | { |
| 1740 | struct diag_mode_set *loopback_mode; |
| 1741 | uint32_t link_flags, timeout, req_len, alloc_len; |
| 1742 | struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback; |
| 1743 | LPFC_MBOXQ_t *pmboxq = NULL; |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 1744 | int mbxstatus = MBX_SUCCESS, i, rc = 0; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1745 | |
| 1746 | /* no data to return just the return code */ |
| 1747 | job->reply->reply_payload_rcv_len = 0; |
| 1748 | |
| 1749 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 1750 | sizeof(struct diag_mode_set)) { |
| 1751 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1752 | "3011 Received DIAG MODE request size:%d " |
| 1753 | "below the minimum size:%d\n", |
| 1754 | job->request_len, |
| 1755 | (int)(sizeof(struct fc_bsg_request) + |
| 1756 | sizeof(struct diag_mode_set))); |
| 1757 | rc = -EINVAL; |
| 1758 | goto job_error; |
| 1759 | } |
| 1760 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1761 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1762 | if (rc) |
| 1763 | goto job_error; |
| 1764 | |
| 1765 | /* bring the link to diagnostic mode */ |
| 1766 | loopback_mode = (struct diag_mode_set *) |
| 1767 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1768 | link_flags = loopback_mode->type; |
| 1769 | timeout = loopback_mode->timeout * 100; |
| 1770 | |
| 1771 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); |
| 1772 | if (rc) |
| 1773 | goto loopback_mode_exit; |
| 1774 | |
| 1775 | /* wait for link down before proceeding */ |
| 1776 | i = 0; |
| 1777 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 1778 | if (i++ > timeout) { |
| 1779 | rc = -ETIMEDOUT; |
| 1780 | goto loopback_mode_exit; |
| 1781 | } |
| 1782 | msleep(10); |
| 1783 | } |
| 1784 | /* set up loopback mode */ |
| 1785 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1786 | if (!pmboxq) { |
| 1787 | rc = -ENOMEM; |
| 1788 | goto loopback_mode_exit; |
| 1789 | } |
| 1790 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) - |
| 1791 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 1792 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 1793 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK, |
| 1794 | req_len, LPFC_SLI4_MBX_EMBED); |
| 1795 | if (alloc_len != req_len) { |
| 1796 | rc = -ENOMEM; |
| 1797 | goto loopback_mode_exit; |
| 1798 | } |
| 1799 | link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback; |
| 1800 | bf_set(lpfc_mbx_set_diag_state_link_num, |
| 1801 | &link_diag_loopback->u.req, phba->sli4_hba.link_state.number); |
| 1802 | bf_set(lpfc_mbx_set_diag_state_link_type, |
| 1803 | &link_diag_loopback->u.req, phba->sli4_hba.link_state.type); |
| 1804 | if (link_flags == INTERNAL_LOOP_BACK) |
| 1805 | bf_set(lpfc_mbx_set_diag_lpbk_type, |
| 1806 | &link_diag_loopback->u.req, |
| 1807 | LPFC_DIAG_LOOPBACK_TYPE_INTERNAL); |
| 1808 | else |
| 1809 | bf_set(lpfc_mbx_set_diag_lpbk_type, |
| 1810 | &link_diag_loopback->u.req, |
| 1811 | LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL); |
| 1812 | |
| 1813 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1814 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) |
| 1815 | rc = -ENODEV; |
| 1816 | else { |
| 1817 | phba->link_flag |= LS_LOOPBACK_MODE; |
| 1818 | /* wait for the link attention interrupt */ |
| 1819 | msleep(100); |
| 1820 | i = 0; |
| 1821 | while (phba->link_state != LPFC_HBA_READY) { |
| 1822 | if (i++ > timeout) { |
| 1823 | rc = -ETIMEDOUT; |
| 1824 | break; |
| 1825 | } |
| 1826 | msleep(10); |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | loopback_mode_exit: |
| 1831 | lpfc_bsg_diag_mode_exit(phba); |
| 1832 | |
| 1833 | /* |
| 1834 | * Let SLI layer release mboxq if mbox command completed after timeout. |
| 1835 | */ |
| 1836 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) |
| 1837 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1838 | |
| 1839 | job_error: |
| 1840 | /* make error code available to userspace */ |
| 1841 | job->reply->result = rc; |
| 1842 | /* complete the job back to userspace if no error */ |
| 1843 | if (rc == 0) |
| 1844 | job->job_done(job); |
| 1845 | return rc; |
| 1846 | } |
| 1847 | |
| 1848 | /** |
| 1849 | * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode |
| 1850 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 1851 | * |
| 1852 | * This function is responsible for responding to check and dispatch bsg diag |
| 1853 | * command from the user to proper driver action routines. |
| 1854 | */ |
| 1855 | static int |
| 1856 | lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job) |
| 1857 | { |
| 1858 | struct Scsi_Host *shost; |
| 1859 | struct lpfc_vport *vport; |
| 1860 | struct lpfc_hba *phba; |
| 1861 | int rc; |
| 1862 | |
| 1863 | shost = job->shost; |
| 1864 | if (!shost) |
| 1865 | return -ENODEV; |
| 1866 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1867 | if (!vport) |
| 1868 | return -ENODEV; |
| 1869 | phba = vport->phba; |
| 1870 | if (!phba) |
| 1871 | return -ENODEV; |
| 1872 | |
| 1873 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 1874 | rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job); |
| 1875 | else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| 1876 | LPFC_SLI_INTF_IF_TYPE_2) |
| 1877 | rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job); |
| 1878 | else |
| 1879 | rc = -ENODEV; |
| 1880 | |
| 1881 | return rc; |
| 1882 | |
| 1883 | } |
| 1884 | |
| 1885 | /** |
| 1886 | * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode |
| 1887 | * @job: LPFC_BSG_VENDOR_DIAG_MODE_END |
| 1888 | * |
| 1889 | * This function is responsible for responding to check and dispatch bsg diag |
| 1890 | * command from the user to proper driver action routines. |
| 1891 | */ |
| 1892 | static int |
| 1893 | lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job) |
| 1894 | { |
| 1895 | struct Scsi_Host *shost; |
| 1896 | struct lpfc_vport *vport; |
| 1897 | struct lpfc_hba *phba; |
| 1898 | int rc; |
| 1899 | |
| 1900 | shost = job->shost; |
| 1901 | if (!shost) |
| 1902 | return -ENODEV; |
| 1903 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1904 | if (!vport) |
| 1905 | return -ENODEV; |
| 1906 | phba = vport->phba; |
| 1907 | if (!phba) |
| 1908 | return -ENODEV; |
| 1909 | |
| 1910 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 1911 | return -ENODEV; |
| 1912 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 1913 | LPFC_SLI_INTF_IF_TYPE_2) |
| 1914 | return -ENODEV; |
| 1915 | |
| 1916 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
| 1917 | |
| 1918 | if (!rc) |
| 1919 | rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); |
| 1920 | |
| 1921 | return rc; |
| 1922 | } |
| 1923 | |
| 1924 | /** |
| 1925 | * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test |
| 1926 | * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST |
| 1927 | * |
| 1928 | * This function is to perform SLI4 diag link test request from the user |
| 1929 | * applicaiton. |
| 1930 | */ |
| 1931 | static int |
| 1932 | lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job) |
| 1933 | { |
| 1934 | struct Scsi_Host *shost; |
| 1935 | struct lpfc_vport *vport; |
| 1936 | struct lpfc_hba *phba; |
| 1937 | LPFC_MBOXQ_t *pmboxq; |
| 1938 | struct sli4_link_diag *link_diag_test_cmd; |
| 1939 | uint32_t req_len, alloc_len; |
| 1940 | uint32_t timeout; |
| 1941 | struct lpfc_mbx_run_link_diag_test *run_link_diag_test; |
| 1942 | union lpfc_sli4_cfg_shdr *shdr; |
| 1943 | uint32_t shdr_status, shdr_add_status; |
| 1944 | struct diag_status *diag_status_reply; |
| 1945 | int mbxstatus, rc = 0; |
| 1946 | |
| 1947 | shost = job->shost; |
| 1948 | if (!shost) { |
| 1949 | rc = -ENODEV; |
| 1950 | goto job_error; |
| 1951 | } |
| 1952 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1953 | if (!vport) { |
| 1954 | rc = -ENODEV; |
| 1955 | goto job_error; |
| 1956 | } |
| 1957 | phba = vport->phba; |
| 1958 | if (!phba) { |
| 1959 | rc = -ENODEV; |
| 1960 | goto job_error; |
| 1961 | } |
| 1962 | |
| 1963 | if (phba->sli_rev < LPFC_SLI_REV4) { |
| 1964 | rc = -ENODEV; |
| 1965 | goto job_error; |
| 1966 | } |
| 1967 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 1968 | LPFC_SLI_INTF_IF_TYPE_2) { |
| 1969 | rc = -ENODEV; |
| 1970 | goto job_error; |
| 1971 | } |
| 1972 | |
| 1973 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 1974 | sizeof(struct sli4_link_diag)) { |
| 1975 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1976 | "3013 Received LINK DIAG TEST request " |
| 1977 | " size:%d below the minimum size:%d\n", |
| 1978 | job->request_len, |
| 1979 | (int)(sizeof(struct fc_bsg_request) + |
| 1980 | sizeof(struct sli4_link_diag))); |
| 1981 | rc = -EINVAL; |
| 1982 | goto job_error; |
| 1983 | } |
| 1984 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1985 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1986 | if (rc) |
| 1987 | goto job_error; |
| 1988 | |
| 1989 | link_diag_test_cmd = (struct sli4_link_diag *) |
| 1990 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1991 | timeout = link_diag_test_cmd->timeout * 100; |
| 1992 | |
| 1993 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); |
| 1994 | |
| 1995 | if (rc) |
| 1996 | goto job_error; |
| 1997 | |
| 1998 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1999 | if (!pmboxq) { |
| 2000 | rc = -ENOMEM; |
| 2001 | goto link_diag_test_exit; |
| 2002 | } |
| 2003 | |
| 2004 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
| 2005 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 2006 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 2007 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, |
| 2008 | req_len, LPFC_SLI4_MBX_EMBED); |
| 2009 | if (alloc_len != req_len) { |
| 2010 | rc = -ENOMEM; |
| 2011 | goto link_diag_test_exit; |
| 2012 | } |
| 2013 | run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test; |
| 2014 | bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req, |
| 2015 | phba->sli4_hba.link_state.number); |
| 2016 | bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req, |
| 2017 | phba->sli4_hba.link_state.type); |
| 2018 | bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req, |
| 2019 | link_diag_test_cmd->test_id); |
| 2020 | bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req, |
| 2021 | link_diag_test_cmd->loops); |
| 2022 | bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req, |
| 2023 | link_diag_test_cmd->test_version); |
| 2024 | bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req, |
| 2025 | link_diag_test_cmd->error_action); |
| 2026 | |
| 2027 | mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 2028 | |
| 2029 | shdr = (union lpfc_sli4_cfg_shdr *) |
| 2030 | &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr; |
| 2031 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| 2032 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| 2033 | if (shdr_status || shdr_add_status || mbxstatus) { |
| 2034 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 2035 | "3010 Run link diag test mailbox failed with " |
| 2036 | "mbx_status x%x status x%x, add_status x%x\n", |
| 2037 | mbxstatus, shdr_status, shdr_add_status); |
| 2038 | } |
| 2039 | |
| 2040 | diag_status_reply = (struct diag_status *) |
| 2041 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 2042 | |
| 2043 | if (job->reply_len < |
| 2044 | sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) { |
| 2045 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2046 | "3012 Received Run link diag test reply " |
| 2047 | "below minimum size (%d): reply_len:%d\n", |
| 2048 | (int)(sizeof(struct fc_bsg_request) + |
| 2049 | sizeof(struct diag_status)), |
| 2050 | job->reply_len); |
| 2051 | rc = -EINVAL; |
| 2052 | goto job_error; |
| 2053 | } |
| 2054 | |
| 2055 | diag_status_reply->mbox_status = mbxstatus; |
| 2056 | diag_status_reply->shdr_status = shdr_status; |
| 2057 | diag_status_reply->shdr_add_status = shdr_add_status; |
| 2058 | |
| 2059 | link_diag_test_exit: |
| 2060 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
| 2061 | |
| 2062 | if (pmboxq) |
| 2063 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 2064 | |
| 2065 | lpfc_bsg_diag_mode_exit(phba); |
| 2066 | |
| 2067 | job_error: |
| 2068 | /* make error code available to userspace */ |
| 2069 | job->reply->result = rc; |
| 2070 | /* complete the job back to userspace if no error */ |
| 2071 | if (rc == 0) |
| 2072 | job->job_done(job); |
| 2073 | return rc; |
| 2074 | } |
| 2075 | |
| 2076 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2077 | * lpfcdiag_loop_self_reg - obtains a remote port login id |
| 2078 | * @phba: Pointer to HBA context object |
| 2079 | * @rpi: Pointer to a remote port login id |
| 2080 | * |
| 2081 | * This function obtains a remote port login id so the diag loopback test |
| 2082 | * can send and receive its own unsolicited CT command. |
| 2083 | **/ |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2084 | 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] | 2085 | { |
| 2086 | LPFC_MBOXQ_t *mbox; |
| 2087 | struct lpfc_dmabuf *dmabuff; |
| 2088 | int status; |
| 2089 | |
| 2090 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2091 | if (!mbox) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2092 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2093 | |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2094 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2095 | *rpi = lpfc_sli4_alloc_rpi(phba); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2096 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2097 | (uint8_t *)&phba->pport->fc_sparam, mbox, *rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2098 | if (status) { |
| 2099 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2100 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2101 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2102 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2103 | } |
| 2104 | |
| 2105 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; |
| 2106 | mbox->context1 = NULL; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2107 | mbox->context2 = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2108 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 2109 | |
| 2110 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 2111 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 2112 | kfree(dmabuff); |
| 2113 | if (status != MBX_TIMEOUT) |
| 2114 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2115 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2116 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2117 | return -ENODEV; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2118 | } |
| 2119 | |
| 2120 | *rpi = mbox->u.mb.un.varWords[0]; |
| 2121 | |
| 2122 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 2123 | kfree(dmabuff); |
| 2124 | mempool_free(mbox, phba->mbox_mem_pool); |
| 2125 | return 0; |
| 2126 | } |
| 2127 | |
| 2128 | /** |
| 2129 | * lpfcdiag_loop_self_unreg - unregs from the rpi |
| 2130 | * @phba: Pointer to HBA context object |
| 2131 | * @rpi: Remote port login id |
| 2132 | * |
| 2133 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg |
| 2134 | **/ |
| 2135 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) |
| 2136 | { |
| 2137 | LPFC_MBOXQ_t *mbox; |
| 2138 | int status; |
| 2139 | |
| 2140 | /* Allocate mboxq structure */ |
| 2141 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2142 | if (mbox == NULL) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2143 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2144 | |
| 2145 | lpfc_unreg_login(phba, 0, rpi, mbox); |
| 2146 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 2147 | |
| 2148 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 2149 | if (status != MBX_TIMEOUT) |
| 2150 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2151 | return -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2152 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2153 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2154 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2155 | lpfc_sli4_free_rpi(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2156 | return 0; |
| 2157 | } |
| 2158 | |
| 2159 | /** |
| 2160 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids |
| 2161 | * @phba: Pointer to HBA context object |
| 2162 | * @rpi: Remote port login id |
| 2163 | * @txxri: Pointer to transmit exchange id |
| 2164 | * @rxxri: Pointer to response exchabge id |
| 2165 | * |
| 2166 | * This function obtains the transmit and receive ids required to send |
| 2167 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp |
| 2168 | * flags are used to the unsolicted response handler is able to process |
| 2169 | * the ct command sent on the same port. |
| 2170 | **/ |
| 2171 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, |
| 2172 | uint16_t *txxri, uint16_t * rxxri) |
| 2173 | { |
| 2174 | struct lpfc_bsg_event *evt; |
| 2175 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 2176 | IOCB_t *cmd, *rsp; |
| 2177 | struct lpfc_dmabuf *dmabuf; |
| 2178 | struct ulp_bde64 *bpl = NULL; |
| 2179 | struct lpfc_sli_ct_request *ctreq = NULL; |
| 2180 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2181 | int time_left; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2182 | int iocb_stat = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2183 | unsigned long flags; |
| 2184 | |
| 2185 | *txxri = 0; |
| 2186 | *rxxri = 0; |
| 2187 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 2188 | SLI_CT_ELX_LOOPBACK); |
| 2189 | if (!evt) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2190 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2191 | |
| 2192 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2193 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 2194 | lpfc_bsg_event_ref(evt); |
| 2195 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2196 | |
| 2197 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2198 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 2199 | |
| 2200 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2201 | if (dmabuf) { |
| 2202 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2203 | if (dmabuf->virt) { |
| 2204 | INIT_LIST_HEAD(&dmabuf->list); |
| 2205 | bpl = (struct ulp_bde64 *) dmabuf->virt; |
| 2206 | memset(bpl, 0, sizeof(*bpl)); |
| 2207 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); |
| 2208 | bpl->addrHigh = |
| 2209 | le32_to_cpu(putPaddrHigh(dmabuf->phys + |
| 2210 | sizeof(*bpl))); |
| 2211 | bpl->addrLow = |
| 2212 | le32_to_cpu(putPaddrLow(dmabuf->phys + |
| 2213 | sizeof(*bpl))); |
| 2214 | bpl->tus.f.bdeFlags = 0; |
| 2215 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; |
| 2216 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 2217 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2218 | } |
| 2219 | |
| 2220 | if (cmdiocbq == NULL || rspiocbq == NULL || |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2221 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
| 2222 | dmabuf->virt == NULL) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2223 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2224 | goto err_get_xri_exit; |
| 2225 | } |
| 2226 | |
| 2227 | cmd = &cmdiocbq->iocb; |
| 2228 | rsp = &rspiocbq->iocb; |
| 2229 | |
| 2230 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 2231 | |
| 2232 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 2233 | ctreq->RevisionId.bits.InId = 0; |
| 2234 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 2235 | ctreq->FsSubType = 0; |
| 2236 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; |
| 2237 | ctreq->CommandResponse.bits.Size = 0; |
| 2238 | |
| 2239 | |
| 2240 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); |
| 2241 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); |
| 2242 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 2243 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); |
| 2244 | |
| 2245 | cmd->un.xseq64.w5.hcsw.Fctl = LA; |
| 2246 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 2247 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 2248 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 2249 | |
| 2250 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; |
| 2251 | cmd->ulpBdeCount = 1; |
| 2252 | cmd->ulpLe = 1; |
| 2253 | cmd->ulpClass = CLASS3; |
| 2254 | cmd->ulpContext = rpi; |
| 2255 | |
| 2256 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 2257 | cmdiocbq->vport = phba->pport; |
| 2258 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2259 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2260 | rspiocbq, |
| 2261 | (phba->fc_ratov * 2) |
| 2262 | + LPFC_DRVR_TIMEOUT); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2263 | if (iocb_stat) { |
| 2264 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2265 | goto err_get_xri_exit; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2266 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2267 | *txxri = rsp->ulpContext; |
| 2268 | |
| 2269 | evt->waiting = 1; |
| 2270 | evt->wait_time_stamp = jiffies; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2271 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2272 | evt->wq, !list_empty(&evt->events_to_see), |
| 2273 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); |
| 2274 | if (list_empty(&evt->events_to_see)) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2275 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2276 | else { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2277 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2278 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 2279 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2280 | *rxxri = (list_entry(evt->events_to_get.prev, |
| 2281 | typeof(struct event_data), |
| 2282 | node))->immed_dat; |
| 2283 | } |
| 2284 | evt->waiting = 0; |
| 2285 | |
| 2286 | err_get_xri_exit: |
| 2287 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2288 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 2289 | lpfc_bsg_event_unref(evt); /* delete */ |
| 2290 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2291 | |
| 2292 | if (dmabuf) { |
| 2293 | if (dmabuf->virt) |
| 2294 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); |
| 2295 | kfree(dmabuf); |
| 2296 | } |
| 2297 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2298 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2299 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2300 | if (rspiocbq) |
| 2301 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 2302 | return ret_val; |
| 2303 | } |
| 2304 | |
| 2305 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2306 | * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers |
| 2307 | * @phba: Pointer to HBA context object |
| 2308 | * |
| 2309 | * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and. |
| 2310 | * retruns the pointer to the buffer. |
| 2311 | **/ |
| 2312 | static struct lpfc_dmabuf * |
| 2313 | lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba) |
| 2314 | { |
| 2315 | struct lpfc_dmabuf *dmabuf; |
| 2316 | struct pci_dev *pcidev = phba->pcidev; |
| 2317 | |
| 2318 | /* allocate dma buffer struct */ |
| 2319 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2320 | if (!dmabuf) |
| 2321 | return NULL; |
| 2322 | |
| 2323 | INIT_LIST_HEAD(&dmabuf->list); |
| 2324 | |
| 2325 | /* now, allocate dma buffer */ |
| 2326 | dmabuf->virt = dma_alloc_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
| 2327 | &(dmabuf->phys), GFP_KERNEL); |
| 2328 | |
| 2329 | if (!dmabuf->virt) { |
| 2330 | kfree(dmabuf); |
| 2331 | return NULL; |
| 2332 | } |
| 2333 | memset((uint8_t *)dmabuf->virt, 0, BSG_MBOX_SIZE); |
| 2334 | |
| 2335 | return dmabuf; |
| 2336 | } |
| 2337 | |
| 2338 | /** |
| 2339 | * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer |
| 2340 | * @phba: Pointer to HBA context object. |
| 2341 | * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor. |
| 2342 | * |
| 2343 | * This routine just simply frees a dma buffer and its associated buffer |
| 2344 | * descriptor referred by @dmabuf. |
| 2345 | **/ |
| 2346 | static void |
| 2347 | lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf) |
| 2348 | { |
| 2349 | struct pci_dev *pcidev = phba->pcidev; |
| 2350 | |
| 2351 | if (!dmabuf) |
| 2352 | return; |
| 2353 | |
| 2354 | if (dmabuf->virt) |
| 2355 | dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
| 2356 | dmabuf->virt, dmabuf->phys); |
| 2357 | kfree(dmabuf); |
| 2358 | return; |
| 2359 | } |
| 2360 | |
| 2361 | /** |
| 2362 | * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers |
| 2363 | * @phba: Pointer to HBA context object. |
| 2364 | * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs. |
| 2365 | * |
| 2366 | * This routine just simply frees all dma buffers and their associated buffer |
| 2367 | * descriptors referred by @dmabuf_list. |
| 2368 | **/ |
| 2369 | static void |
| 2370 | lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba, |
| 2371 | struct list_head *dmabuf_list) |
| 2372 | { |
| 2373 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
| 2374 | |
| 2375 | if (list_empty(dmabuf_list)) |
| 2376 | return; |
| 2377 | |
| 2378 | list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) { |
| 2379 | list_del_init(&dmabuf->list); |
| 2380 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 2381 | } |
| 2382 | return; |
| 2383 | } |
| 2384 | |
| 2385 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2386 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers |
| 2387 | * @phba: Pointer to HBA context object |
| 2388 | * @bpl: Pointer to 64 bit bde structure |
| 2389 | * @size: Number of bytes to process |
| 2390 | * @nocopydata: Flag to copy user data into the allocated buffer |
| 2391 | * |
| 2392 | * This function allocates page size buffers and populates an lpfc_dmabufext. |
| 2393 | * If allowed the user data pointed to with indataptr is copied into the kernel |
| 2394 | * memory. The chained list of page size buffers is returned. |
| 2395 | **/ |
| 2396 | static struct lpfc_dmabufext * |
| 2397 | diag_cmd_data_alloc(struct lpfc_hba *phba, |
| 2398 | struct ulp_bde64 *bpl, uint32_t size, |
| 2399 | int nocopydata) |
| 2400 | { |
| 2401 | struct lpfc_dmabufext *mlist = NULL; |
| 2402 | struct lpfc_dmabufext *dmp; |
| 2403 | int cnt, offset = 0, i = 0; |
| 2404 | struct pci_dev *pcidev; |
| 2405 | |
| 2406 | pcidev = phba->pcidev; |
| 2407 | |
| 2408 | while (size) { |
| 2409 | /* We get chunks of 4K */ |
| 2410 | if (size > BUF_SZ_4K) |
| 2411 | cnt = BUF_SZ_4K; |
| 2412 | else |
| 2413 | cnt = size; |
| 2414 | |
| 2415 | /* allocate struct lpfc_dmabufext buffer header */ |
| 2416 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); |
| 2417 | if (!dmp) |
| 2418 | goto out; |
| 2419 | |
| 2420 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2421 | |
| 2422 | /* Queue it to a linked list */ |
| 2423 | if (mlist) |
| 2424 | list_add_tail(&dmp->dma.list, &mlist->dma.list); |
| 2425 | else |
| 2426 | mlist = dmp; |
| 2427 | |
| 2428 | /* allocate buffer */ |
| 2429 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, |
| 2430 | cnt, |
| 2431 | &(dmp->dma.phys), |
| 2432 | GFP_KERNEL); |
| 2433 | |
| 2434 | if (!dmp->dma.virt) |
| 2435 | goto out; |
| 2436 | |
| 2437 | dmp->size = cnt; |
| 2438 | |
| 2439 | if (nocopydata) { |
| 2440 | bpl->tus.f.bdeFlags = 0; |
| 2441 | pci_dma_sync_single_for_device(phba->pcidev, |
| 2442 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); |
| 2443 | |
| 2444 | } else { |
| 2445 | memset((uint8_t *)dmp->dma.virt, 0, cnt); |
| 2446 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 2447 | } |
| 2448 | |
| 2449 | /* build buffer ptr list for IOCB */ |
| 2450 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); |
| 2451 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); |
| 2452 | bpl->tus.f.bdeSize = (ushort) cnt; |
| 2453 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 2454 | bpl++; |
| 2455 | |
| 2456 | i++; |
| 2457 | offset += cnt; |
| 2458 | size -= cnt; |
| 2459 | } |
| 2460 | |
| 2461 | mlist->flag = i; |
| 2462 | return mlist; |
| 2463 | out: |
| 2464 | diag_cmd_data_free(phba, mlist); |
| 2465 | return NULL; |
| 2466 | } |
| 2467 | |
| 2468 | /** |
| 2469 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd |
| 2470 | * @phba: Pointer to HBA context object |
| 2471 | * @rxxri: Receive exchange id |
| 2472 | * @len: Number of data bytes |
| 2473 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2474 | * 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] | 2475 | * an unsolicted CT command. |
| 2476 | **/ |
| 2477 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, |
| 2478 | size_t len) |
| 2479 | { |
| 2480 | struct lpfc_sli *psli = &phba->sli; |
| 2481 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; |
| 2482 | struct lpfc_iocbq *cmdiocbq; |
| 2483 | IOCB_t *cmd = NULL; |
| 2484 | struct list_head head, *curr, *next; |
| 2485 | struct lpfc_dmabuf *rxbmp; |
| 2486 | struct lpfc_dmabuf *dmp; |
| 2487 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; |
| 2488 | struct ulp_bde64 *rxbpl = NULL; |
| 2489 | uint32_t num_bde; |
| 2490 | struct lpfc_dmabufext *rxbuffer = NULL; |
| 2491 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2492 | int iocb_stat; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2493 | int i = 0; |
| 2494 | |
| 2495 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2496 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2497 | if (rxbmp != NULL) { |
| 2498 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2499 | if (rxbmp->virt) { |
| 2500 | INIT_LIST_HEAD(&rxbmp->list); |
| 2501 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2502 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); |
| 2503 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2504 | } |
| 2505 | |
| 2506 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2507 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2508 | goto err_post_rxbufs_exit; |
| 2509 | } |
| 2510 | |
| 2511 | /* Queue buffers for the receive exchange */ |
| 2512 | num_bde = (uint32_t)rxbuffer->flag; |
| 2513 | dmp = &rxbuffer->dma; |
| 2514 | |
| 2515 | cmd = &cmdiocbq->iocb; |
| 2516 | i = 0; |
| 2517 | |
| 2518 | INIT_LIST_HEAD(&head); |
| 2519 | list_add_tail(&head, &dmp->list); |
| 2520 | list_for_each_safe(curr, next, &head) { |
| 2521 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); |
| 2522 | list_del(curr); |
| 2523 | |
| 2524 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 2525 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); |
| 2526 | cmd->un.quexri64cx.buff.bde.addrHigh = |
| 2527 | putPaddrHigh(mp[i]->phys); |
| 2528 | cmd->un.quexri64cx.buff.bde.addrLow = |
| 2529 | putPaddrLow(mp[i]->phys); |
| 2530 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = |
| 2531 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2532 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; |
| 2533 | cmd->ulpCommand = CMD_QUE_XRI64_CX; |
| 2534 | cmd->ulpPU = 0; |
| 2535 | cmd->ulpLe = 1; |
| 2536 | cmd->ulpBdeCount = 1; |
| 2537 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; |
| 2538 | |
| 2539 | } else { |
| 2540 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); |
| 2541 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); |
| 2542 | cmd->un.cont64[i].tus.f.bdeSize = |
| 2543 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2544 | cmd->ulpBdeCount = ++i; |
| 2545 | |
| 2546 | if ((--num_bde > 0) && (i < 2)) |
| 2547 | continue; |
| 2548 | |
| 2549 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; |
| 2550 | cmd->ulpLe = 1; |
| 2551 | } |
| 2552 | |
| 2553 | cmd->ulpClass = CLASS3; |
| 2554 | cmd->ulpContext = rxxri; |
| 2555 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2556 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 2557 | 0); |
| 2558 | if (iocb_stat == IOCB_ERROR) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2559 | diag_cmd_data_free(phba, |
| 2560 | (struct lpfc_dmabufext *)mp[0]); |
| 2561 | if (mp[1]) |
| 2562 | diag_cmd_data_free(phba, |
| 2563 | (struct lpfc_dmabufext *)mp[1]); |
| 2564 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2565 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2566 | goto err_post_rxbufs_exit; |
| 2567 | } |
| 2568 | |
| 2569 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); |
| 2570 | if (mp[1]) { |
| 2571 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); |
| 2572 | mp[1] = NULL; |
| 2573 | } |
| 2574 | |
| 2575 | /* The iocb was freed by lpfc_sli_issue_iocb */ |
| 2576 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2577 | if (!cmdiocbq) { |
| 2578 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2579 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2580 | goto err_post_rxbufs_exit; |
| 2581 | } |
| 2582 | |
| 2583 | cmd = &cmdiocbq->iocb; |
| 2584 | i = 0; |
| 2585 | } |
| 2586 | list_del(&head); |
| 2587 | |
| 2588 | err_post_rxbufs_exit: |
| 2589 | |
| 2590 | if (rxbmp) { |
| 2591 | if (rxbmp->virt) |
| 2592 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); |
| 2593 | kfree(rxbmp); |
| 2594 | } |
| 2595 | |
| 2596 | if (cmdiocbq) |
| 2597 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2598 | return ret_val; |
| 2599 | } |
| 2600 | |
| 2601 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2602 | * lpfc_bsg_diag_loopback_run - run loopback on a port by issue ct cmd to itself |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2603 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
| 2604 | * |
| 2605 | * This function receives a user data buffer to be transmitted and received on |
| 2606 | * the same port, the link must be up and in loopback mode prior |
| 2607 | * to being called. |
| 2608 | * 1. A kernel buffer is allocated to copy the user data into. |
| 2609 | * 2. The port registers with "itself". |
| 2610 | * 3. The transmit and receive exchange ids are obtained. |
| 2611 | * 4. The receive exchange id is posted. |
| 2612 | * 5. A new els loopback event is created. |
| 2613 | * 6. The command and response iocbs are allocated. |
| 2614 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. |
| 2615 | * |
| 2616 | * This function is meant to be called n times while the port is in loopback |
| 2617 | * so it is the apps responsibility to issue a reset to take the port out |
| 2618 | * of loopback mode. |
| 2619 | **/ |
| 2620 | static int |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2621 | lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2622 | { |
| 2623 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2624 | struct lpfc_hba *phba = vport->phba; |
| 2625 | struct diag_mode_test *diag_mode; |
| 2626 | struct lpfc_bsg_event *evt; |
| 2627 | struct event_data *evdat; |
| 2628 | struct lpfc_sli *psli = &phba->sli; |
| 2629 | uint32_t size; |
| 2630 | uint32_t full_size; |
| 2631 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2632 | uint16_t rpi = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2633 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 2634 | IOCB_t *cmd, *rsp; |
| 2635 | struct lpfc_sli_ct_request *ctreq; |
| 2636 | struct lpfc_dmabuf *txbmp; |
| 2637 | struct ulp_bde64 *txbpl = NULL; |
| 2638 | struct lpfc_dmabufext *txbuffer = NULL; |
| 2639 | struct list_head head; |
| 2640 | struct lpfc_dmabuf *curr; |
| 2641 | uint16_t txxri, rxxri; |
| 2642 | uint32_t num_bde; |
| 2643 | uint8_t *ptr = NULL, *rx_databuf = NULL; |
| 2644 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2645 | int time_left; |
| 2646 | int iocb_stat; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2647 | unsigned long flags; |
| 2648 | void *dataout = NULL; |
| 2649 | uint32_t total_mem; |
| 2650 | |
| 2651 | /* in case no data is returned return just the return code */ |
| 2652 | job->reply->reply_payload_rcv_len = 0; |
| 2653 | |
| 2654 | if (job->request_len < |
| 2655 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { |
| 2656 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2657 | "2739 Received DIAG TEST request below minimum " |
| 2658 | "size\n"); |
| 2659 | rc = -EINVAL; |
| 2660 | goto loopback_test_exit; |
| 2661 | } |
| 2662 | |
| 2663 | if (job->request_payload.payload_len != |
| 2664 | job->reply_payload.payload_len) { |
| 2665 | rc = -EINVAL; |
| 2666 | goto loopback_test_exit; |
| 2667 | } |
| 2668 | |
| 2669 | diag_mode = (struct diag_mode_test *) |
| 2670 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2671 | |
| 2672 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 2673 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 2674 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { |
| 2675 | rc = -EACCES; |
| 2676 | goto loopback_test_exit; |
| 2677 | } |
| 2678 | |
| 2679 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { |
| 2680 | rc = -EACCES; |
| 2681 | goto loopback_test_exit; |
| 2682 | } |
| 2683 | |
| 2684 | size = job->request_payload.payload_len; |
| 2685 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ |
| 2686 | |
| 2687 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { |
| 2688 | rc = -ERANGE; |
| 2689 | goto loopback_test_exit; |
| 2690 | } |
| 2691 | |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 2692 | if (full_size >= BUF_SZ_4K) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2693 | /* |
| 2694 | * Allocate memory for ioctl data. If buffer is bigger than 64k, |
| 2695 | * then we allocate 64k and re-use that buffer over and over to |
| 2696 | * xfer the whole block. This is because Linux kernel has a |
| 2697 | * problem allocating more than 120k of kernel space memory. Saw |
| 2698 | * problem with GET_FCPTARGETMAPPING... |
| 2699 | */ |
| 2700 | if (size <= (64 * 1024)) |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 2701 | total_mem = full_size; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2702 | else |
| 2703 | total_mem = 64 * 1024; |
| 2704 | } else |
| 2705 | /* Allocate memory for ioctl data */ |
| 2706 | total_mem = BUF_SZ_4K; |
| 2707 | |
| 2708 | dataout = kmalloc(total_mem, GFP_KERNEL); |
| 2709 | if (dataout == NULL) { |
| 2710 | rc = -ENOMEM; |
| 2711 | goto loopback_test_exit; |
| 2712 | } |
| 2713 | |
| 2714 | ptr = dataout; |
| 2715 | ptr += ELX_LOOPBACK_HEADER_SZ; |
| 2716 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 2717 | job->request_payload.sg_cnt, |
| 2718 | ptr, size); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2719 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2720 | if (rc) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2721 | goto loopback_test_exit; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2722 | |
| 2723 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); |
| 2724 | if (rc) { |
| 2725 | lpfcdiag_loop_self_unreg(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2726 | goto loopback_test_exit; |
| 2727 | } |
| 2728 | |
| 2729 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
| 2730 | if (rc) { |
| 2731 | lpfcdiag_loop_self_unreg(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2732 | goto loopback_test_exit; |
| 2733 | } |
| 2734 | |
| 2735 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 2736 | SLI_CT_ELX_LOOPBACK); |
| 2737 | if (!evt) { |
| 2738 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 2739 | rc = -ENOMEM; |
| 2740 | goto loopback_test_exit; |
| 2741 | } |
| 2742 | |
| 2743 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2744 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 2745 | lpfc_bsg_event_ref(evt); |
| 2746 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2747 | |
| 2748 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2749 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 2750 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2751 | |
| 2752 | if (txbmp) { |
| 2753 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2754 | if (txbmp->virt) { |
| 2755 | INIT_LIST_HEAD(&txbmp->list); |
| 2756 | txbpl = (struct ulp_bde64 *) txbmp->virt; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2757 | txbuffer = diag_cmd_data_alloc(phba, |
| 2758 | txbpl, full_size, 0); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2759 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2760 | } |
| 2761 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2762 | if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer || |
| 2763 | !txbmp->virt) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2764 | rc = -ENOMEM; |
| 2765 | goto err_loopback_test_exit; |
| 2766 | } |
| 2767 | |
| 2768 | cmd = &cmdiocbq->iocb; |
| 2769 | rsp = &rspiocbq->iocb; |
| 2770 | |
| 2771 | INIT_LIST_HEAD(&head); |
| 2772 | list_add_tail(&head, &txbuffer->dma.list); |
| 2773 | list_for_each_entry(curr, &head, list) { |
| 2774 | segment_len = ((struct lpfc_dmabufext *)curr)->size; |
| 2775 | if (current_offset == 0) { |
| 2776 | ctreq = curr->virt; |
| 2777 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 2778 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 2779 | ctreq->RevisionId.bits.InId = 0; |
| 2780 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 2781 | ctreq->FsSubType = 0; |
| 2782 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; |
| 2783 | ctreq->CommandResponse.bits.Size = size; |
| 2784 | segment_offset = ELX_LOOPBACK_HEADER_SZ; |
| 2785 | } else |
| 2786 | segment_offset = 0; |
| 2787 | |
| 2788 | BUG_ON(segment_offset >= segment_len); |
| 2789 | memcpy(curr->virt + segment_offset, |
| 2790 | ptr + current_offset, |
| 2791 | segment_len - segment_offset); |
| 2792 | |
| 2793 | current_offset += segment_len - segment_offset; |
| 2794 | BUG_ON(current_offset > size); |
| 2795 | } |
| 2796 | list_del(&head); |
| 2797 | |
| 2798 | /* Build the XMIT_SEQUENCE iocb */ |
| 2799 | |
| 2800 | num_bde = (uint32_t)txbuffer->flag; |
| 2801 | |
| 2802 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); |
| 2803 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); |
| 2804 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 2805 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); |
| 2806 | |
| 2807 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 2808 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 2809 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 2810 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 2811 | |
| 2812 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 2813 | cmd->ulpBdeCount = 1; |
| 2814 | cmd->ulpLe = 1; |
| 2815 | cmd->ulpClass = CLASS3; |
| 2816 | cmd->ulpContext = txxri; |
| 2817 | |
| 2818 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 2819 | cmdiocbq->vport = phba->pport; |
| 2820 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2821 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
| 2822 | rspiocbq, (phba->fc_ratov * 2) + |
| 2823 | LPFC_DRVR_TIMEOUT); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2824 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2825 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2826 | rc = -EIO; |
| 2827 | goto err_loopback_test_exit; |
| 2828 | } |
| 2829 | |
| 2830 | evt->waiting = 1; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2831 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2832 | evt->wq, !list_empty(&evt->events_to_see), |
| 2833 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ); |
| 2834 | evt->waiting = 0; |
| 2835 | if (list_empty(&evt->events_to_see)) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2836 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2837 | else { |
| 2838 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2839 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 2840 | evdat = list_entry(evt->events_to_get.prev, |
| 2841 | typeof(*evdat), node); |
| 2842 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2843 | rx_databuf = evdat->data; |
| 2844 | if (evdat->len != full_size) { |
| 2845 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 2846 | "1603 Loopback test did not receive expected " |
| 2847 | "data length. actual length 0x%x expected " |
| 2848 | "length 0x%x\n", |
| 2849 | evdat->len, full_size); |
| 2850 | rc = -EIO; |
| 2851 | } else if (rx_databuf == NULL) |
| 2852 | rc = -EIO; |
| 2853 | else { |
| 2854 | rc = IOCB_SUCCESS; |
| 2855 | /* skip over elx loopback header */ |
| 2856 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; |
| 2857 | job->reply->reply_payload_rcv_len = |
| 2858 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 2859 | job->reply_payload.sg_cnt, |
| 2860 | rx_databuf, size); |
| 2861 | job->reply->reply_payload_rcv_len = size; |
| 2862 | } |
| 2863 | } |
| 2864 | |
| 2865 | err_loopback_test_exit: |
| 2866 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 2867 | |
| 2868 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2869 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 2870 | lpfc_bsg_event_unref(evt); /* delete */ |
| 2871 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2872 | |
| 2873 | if (cmdiocbq != NULL) |
| 2874 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2875 | |
| 2876 | if (rspiocbq != NULL) |
| 2877 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 2878 | |
| 2879 | if (txbmp != NULL) { |
| 2880 | if (txbpl != NULL) { |
| 2881 | if (txbuffer != NULL) |
| 2882 | diag_cmd_data_free(phba, txbuffer); |
| 2883 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); |
| 2884 | } |
| 2885 | kfree(txbmp); |
| 2886 | } |
| 2887 | |
| 2888 | loopback_test_exit: |
| 2889 | kfree(dataout); |
| 2890 | /* make error code available to userspace */ |
| 2891 | job->reply->result = rc; |
| 2892 | job->dd_data = NULL; |
| 2893 | /* complete the job back to userspace if no error */ |
| 2894 | if (rc == 0) |
| 2895 | job->job_done(job); |
| 2896 | return rc; |
| 2897 | } |
| 2898 | |
| 2899 | /** |
| 2900 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command |
| 2901 | * @job: GET_DFC_REV fc_bsg_job |
| 2902 | **/ |
| 2903 | static int |
| 2904 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) |
| 2905 | { |
| 2906 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2907 | struct lpfc_hba *phba = vport->phba; |
| 2908 | struct get_mgmt_rev *event_req; |
| 2909 | struct get_mgmt_rev_reply *event_reply; |
| 2910 | int rc = 0; |
| 2911 | |
| 2912 | if (job->request_len < |
| 2913 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { |
| 2914 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2915 | "2740 Received GET_DFC_REV request below " |
| 2916 | "minimum size\n"); |
| 2917 | rc = -EINVAL; |
| 2918 | goto job_error; |
| 2919 | } |
| 2920 | |
| 2921 | event_req = (struct get_mgmt_rev *) |
| 2922 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2923 | |
| 2924 | event_reply = (struct get_mgmt_rev_reply *) |
| 2925 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 2926 | |
| 2927 | if (job->reply_len < |
| 2928 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { |
| 2929 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2930 | "2741 Received GET_DFC_REV reply below " |
| 2931 | "minimum size\n"); |
| 2932 | rc = -EINVAL; |
| 2933 | goto job_error; |
| 2934 | } |
| 2935 | |
| 2936 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; |
| 2937 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; |
| 2938 | job_error: |
| 2939 | job->reply->result = rc; |
| 2940 | if (rc == 0) |
| 2941 | job->job_done(job); |
| 2942 | return rc; |
| 2943 | } |
| 2944 | |
| 2945 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2946 | * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2947 | * @phba: Pointer to HBA context object. |
| 2948 | * @pmboxq: Pointer to mailbox command. |
| 2949 | * |
| 2950 | * This is completion handler function for mailbox commands issued from |
| 2951 | * lpfc_bsg_issue_mbox function. This function is called by the |
| 2952 | * mailbox event handler function with no lock held. This function |
| 2953 | * will wake up thread waiting on the wait queue pointed by context1 |
| 2954 | * of the mailbox. |
| 2955 | **/ |
| 2956 | void |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2957 | lpfc_bsg_issue_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2958 | { |
| 2959 | struct bsg_job_data *dd_data; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2960 | struct fc_bsg_job *job; |
| 2961 | uint32_t size; |
| 2962 | unsigned long flags; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2963 | uint8_t *pmb, *pmb_buf; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2964 | |
| 2965 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2966 | dd_data = pmboxq->context1; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2967 | /* job already timed out? */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2968 | if (!dd_data) { |
| 2969 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2970 | return; |
| 2971 | } |
| 2972 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2973 | /* |
| 2974 | * The outgoing buffer is readily referred from the dma buffer, |
| 2975 | * just need to get header part from mailboxq structure. |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2976 | */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2977 | pmb = (uint8_t *)&pmboxq->u.mb; |
| 2978 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; |
| 2979 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 2980 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2981 | job = dd_data->context_un.mbox.set_job; |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2982 | if (job) { |
| 2983 | size = job->reply_payload.payload_len; |
| 2984 | job->reply->reply_payload_rcv_len = |
| 2985 | sg_copy_from_buffer(job->reply_payload.sg_list, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2986 | job->reply_payload.sg_cnt, |
| 2987 | pmb_buf, size); |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2988 | /* need to hold the lock until we set job->dd_data to NULL |
| 2989 | * to hold off the timeout handler returning to the mid-layer |
| 2990 | * while we are still processing the job. |
| 2991 | */ |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2992 | job->dd_data = NULL; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2993 | dd_data->context_un.mbox.set_job = NULL; |
| 2994 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 2995 | } else { |
| 2996 | dd_data->context_un.mbox.set_job = NULL; |
| 2997 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 2998 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 2999 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3000 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3001 | lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3002 | kfree(dd_data); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3003 | |
| 3004 | if (job) { |
| 3005 | job->reply->result = 0; |
| 3006 | job->job_done(job); |
| 3007 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3008 | return; |
| 3009 | } |
| 3010 | |
| 3011 | /** |
| 3012 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command |
| 3013 | * @phba: Pointer to HBA context object. |
| 3014 | * @mb: Pointer to a mailbox object. |
| 3015 | * @vport: Pointer to a vport object. |
| 3016 | * |
| 3017 | * Some commands require the port to be offline, some may not be called from |
| 3018 | * the application. |
| 3019 | **/ |
| 3020 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, |
| 3021 | MAILBOX_t *mb, struct lpfc_vport *vport) |
| 3022 | { |
| 3023 | /* return negative error values for bsg job */ |
| 3024 | switch (mb->mbxCommand) { |
| 3025 | /* Offline only */ |
| 3026 | case MBX_INIT_LINK: |
| 3027 | case MBX_DOWN_LINK: |
| 3028 | case MBX_CONFIG_LINK: |
| 3029 | case MBX_CONFIG_RING: |
| 3030 | case MBX_RESET_RING: |
| 3031 | case MBX_UNREG_LOGIN: |
| 3032 | case MBX_CLEAR_LA: |
| 3033 | case MBX_DUMP_CONTEXT: |
| 3034 | case MBX_RUN_DIAGS: |
| 3035 | case MBX_RESTART: |
| 3036 | case MBX_SET_MASK: |
| 3037 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { |
| 3038 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3039 | "2743 Command 0x%x is illegal in on-line " |
| 3040 | "state\n", |
| 3041 | mb->mbxCommand); |
| 3042 | return -EPERM; |
| 3043 | } |
| 3044 | case MBX_WRITE_NV: |
| 3045 | case MBX_WRITE_VPARMS: |
| 3046 | case MBX_LOAD_SM: |
| 3047 | case MBX_READ_NV: |
| 3048 | case MBX_READ_CONFIG: |
| 3049 | case MBX_READ_RCONFIG: |
| 3050 | case MBX_READ_STATUS: |
| 3051 | case MBX_READ_XRI: |
| 3052 | case MBX_READ_REV: |
| 3053 | case MBX_READ_LNK_STAT: |
| 3054 | case MBX_DUMP_MEMORY: |
| 3055 | case MBX_DOWN_LOAD: |
| 3056 | case MBX_UPDATE_CFG: |
| 3057 | case MBX_KILL_BOARD: |
| 3058 | case MBX_LOAD_AREA: |
| 3059 | case MBX_LOAD_EXP_ROM: |
| 3060 | case MBX_BEACON: |
| 3061 | case MBX_DEL_LD_ENTRY: |
| 3062 | case MBX_SET_DEBUG: |
| 3063 | case MBX_WRITE_WWN: |
| 3064 | case MBX_SLI4_CONFIG: |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 3065 | case MBX_READ_EVENT_LOG: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3066 | case MBX_READ_EVENT_LOG_STATUS: |
| 3067 | case MBX_WRITE_EVENT_LOG: |
| 3068 | case MBX_PORT_CAPABILITIES: |
| 3069 | case MBX_PORT_IOV_CONTROL: |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3070 | case MBX_RUN_BIU_DIAG64: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3071 | break; |
| 3072 | case MBX_SET_VARIABLE: |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3073 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| 3074 | "1226 mbox: set_variable 0x%x, 0x%x\n", |
| 3075 | mb->un.varWords[0], |
| 3076 | mb->un.varWords[1]); |
| 3077 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) |
| 3078 | && (mb->un.varWords[1] == 1)) { |
| 3079 | phba->wait_4_mlo_maint_flg = 1; |
| 3080 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { |
| 3081 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
James Smart | 76a95d7 | 2010-11-20 23:11:48 -0500 | [diff] [blame] | 3082 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3083 | } |
| 3084 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3085 | case MBX_READ_SPARM64: |
James Smart | 76a95d7 | 2010-11-20 23:11:48 -0500 | [diff] [blame] | 3086 | case MBX_READ_TOPOLOGY: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3087 | case MBX_REG_LOGIN: |
| 3088 | case MBX_REG_LOGIN64: |
| 3089 | case MBX_CONFIG_PORT: |
| 3090 | case MBX_RUN_BIU_DIAG: |
| 3091 | default: |
| 3092 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3093 | "2742 Unknown Command 0x%x\n", |
| 3094 | mb->mbxCommand); |
| 3095 | return -EPERM; |
| 3096 | } |
| 3097 | |
| 3098 | return 0; /* ok */ |
| 3099 | } |
| 3100 | |
| 3101 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3102 | * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session |
| 3103 | * @phba: Pointer to HBA context object. |
| 3104 | * |
| 3105 | * This is routine clean up and reset BSG handling of multi-buffer mbox |
| 3106 | * command session. |
| 3107 | **/ |
| 3108 | static void |
| 3109 | lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba) |
| 3110 | { |
| 3111 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) |
| 3112 | return; |
| 3113 | |
| 3114 | /* free all memory, including dma buffers */ |
| 3115 | lpfc_bsg_dma_page_list_free(phba, |
| 3116 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3117 | lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf); |
| 3118 | /* multi-buffer write mailbox command pass-through complete */ |
| 3119 | memset((char *)&phba->mbox_ext_buf_ctx, 0, |
| 3120 | sizeof(struct lpfc_mbox_ext_buf_ctx)); |
| 3121 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3122 | |
| 3123 | return; |
| 3124 | } |
| 3125 | |
| 3126 | /** |
| 3127 | * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl |
| 3128 | * @phba: Pointer to HBA context object. |
| 3129 | * @pmboxq: Pointer to mailbox command. |
| 3130 | * |
| 3131 | * This is routine handles BSG job for mailbox commands completions with |
| 3132 | * multiple external buffers. |
| 3133 | **/ |
| 3134 | static struct fc_bsg_job * |
| 3135 | lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3136 | { |
| 3137 | struct bsg_job_data *dd_data; |
| 3138 | struct fc_bsg_job *job; |
| 3139 | uint8_t *pmb, *pmb_buf; |
| 3140 | unsigned long flags; |
| 3141 | uint32_t size; |
| 3142 | int rc = 0; |
| 3143 | |
| 3144 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3145 | dd_data = pmboxq->context1; |
| 3146 | /* has the job already timed out? */ |
| 3147 | if (!dd_data) { |
| 3148 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3149 | job = NULL; |
| 3150 | goto job_done_out; |
| 3151 | } |
| 3152 | |
| 3153 | /* |
| 3154 | * The outgoing buffer is readily referred from the dma buffer, |
| 3155 | * just need to get header part from mailboxq structure. |
| 3156 | */ |
| 3157 | pmb = (uint8_t *)&pmboxq->u.mb; |
| 3158 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; |
| 3159 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
| 3160 | |
| 3161 | job = dd_data->context_un.mbox.set_job; |
| 3162 | if (job) { |
| 3163 | size = job->reply_payload.payload_len; |
| 3164 | job->reply->reply_payload_rcv_len = |
| 3165 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 3166 | job->reply_payload.sg_cnt, |
| 3167 | pmb_buf, size); |
| 3168 | /* result for successful */ |
| 3169 | job->reply->result = 0; |
| 3170 | job->dd_data = NULL; |
| 3171 | /* need to hold the lock util we set job->dd_data to NULL |
| 3172 | * to hold off the timeout handler from midlayer to take |
| 3173 | * any action. |
| 3174 | */ |
| 3175 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3176 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3177 | "2937 SLI_CONFIG ext-buffer maibox command " |
| 3178 | "(x%x/x%x) complete bsg job done, bsize:%d\n", |
| 3179 | phba->mbox_ext_buf_ctx.nembType, |
| 3180 | phba->mbox_ext_buf_ctx.mboxType, size); |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3181 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, |
| 3182 | phba->mbox_ext_buf_ctx.nembType, |
| 3183 | phba->mbox_ext_buf_ctx.mboxType, |
| 3184 | dma_ebuf, sta_pos_addr, |
| 3185 | phba->mbox_ext_buf_ctx.mbx_dmabuf, 0); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3186 | } else |
| 3187 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3188 | |
| 3189 | job_done_out: |
| 3190 | if (!job) |
| 3191 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3192 | "2938 SLI_CONFIG ext-buffer maibox " |
| 3193 | "command (x%x/x%x) failure, rc:x%x\n", |
| 3194 | phba->mbox_ext_buf_ctx.nembType, |
| 3195 | phba->mbox_ext_buf_ctx.mboxType, rc); |
| 3196 | /* state change */ |
| 3197 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE; |
| 3198 | kfree(dd_data); |
| 3199 | |
| 3200 | return job; |
| 3201 | } |
| 3202 | |
| 3203 | /** |
| 3204 | * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox |
| 3205 | * @phba: Pointer to HBA context object. |
| 3206 | * @pmboxq: Pointer to mailbox command. |
| 3207 | * |
| 3208 | * This is completion handler function for mailbox read commands with multiple |
| 3209 | * external buffers. |
| 3210 | **/ |
| 3211 | static void |
| 3212 | lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3213 | { |
| 3214 | struct fc_bsg_job *job; |
| 3215 | |
| 3216 | /* handle the BSG job with mailbox command */ |
| 3217 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_ABTS) |
| 3218 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
| 3219 | |
| 3220 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3221 | "2939 SLI_CONFIG ext-buffer rd maibox command " |
| 3222 | "complete, ctxState:x%x, mbxStatus:x%x\n", |
| 3223 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); |
| 3224 | |
| 3225 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
| 3226 | |
| 3227 | if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1) |
| 3228 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3229 | |
| 3230 | /* free base driver mailbox structure memory */ |
| 3231 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3232 | |
| 3233 | /* complete the bsg job if we have it */ |
| 3234 | if (job) |
| 3235 | job->job_done(job); |
| 3236 | |
| 3237 | return; |
| 3238 | } |
| 3239 | |
| 3240 | /** |
| 3241 | * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox |
| 3242 | * @phba: Pointer to HBA context object. |
| 3243 | * @pmboxq: Pointer to mailbox command. |
| 3244 | * |
| 3245 | * This is completion handler function for mailbox write commands with multiple |
| 3246 | * external buffers. |
| 3247 | **/ |
| 3248 | static void |
| 3249 | lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3250 | { |
| 3251 | struct fc_bsg_job *job; |
| 3252 | |
| 3253 | /* handle the BSG job with the mailbox command */ |
| 3254 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_ABTS) |
| 3255 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
| 3256 | |
| 3257 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3258 | "2940 SLI_CONFIG ext-buffer wr maibox command " |
| 3259 | "complete, ctxState:x%x, mbxStatus:x%x\n", |
| 3260 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); |
| 3261 | |
| 3262 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
| 3263 | |
| 3264 | /* free all memory, including dma buffers */ |
| 3265 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3266 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3267 | |
| 3268 | /* complete the bsg job if we have it */ |
| 3269 | if (job) |
| 3270 | job->job_done(job); |
| 3271 | |
| 3272 | return; |
| 3273 | } |
| 3274 | |
| 3275 | static void |
| 3276 | lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp, |
| 3277 | uint32_t index, struct lpfc_dmabuf *mbx_dmabuf, |
| 3278 | struct lpfc_dmabuf *ext_dmabuf) |
| 3279 | { |
| 3280 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3281 | |
| 3282 | /* pointer to the start of mailbox command */ |
| 3283 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt; |
| 3284 | |
| 3285 | if (nemb_tp == nemb_mse) { |
| 3286 | if (index == 0) { |
| 3287 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3288 | mse[index].pa_hi = |
| 3289 | putPaddrHigh(mbx_dmabuf->phys + |
| 3290 | sizeof(MAILBOX_t)); |
| 3291 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3292 | mse[index].pa_lo = |
| 3293 | putPaddrLow(mbx_dmabuf->phys + |
| 3294 | sizeof(MAILBOX_t)); |
| 3295 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3296 | "2943 SLI_CONFIG(mse)[%d], " |
| 3297 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3298 | index, |
| 3299 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3300 | mse[index].buf_len, |
| 3301 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3302 | mse[index].pa_hi, |
| 3303 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3304 | mse[index].pa_lo); |
| 3305 | } else { |
| 3306 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3307 | mse[index].pa_hi = |
| 3308 | putPaddrHigh(ext_dmabuf->phys); |
| 3309 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3310 | mse[index].pa_lo = |
| 3311 | putPaddrLow(ext_dmabuf->phys); |
| 3312 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3313 | "2944 SLI_CONFIG(mse)[%d], " |
| 3314 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3315 | index, |
| 3316 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3317 | mse[index].buf_len, |
| 3318 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3319 | mse[index].pa_hi, |
| 3320 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3321 | mse[index].pa_lo); |
| 3322 | } |
| 3323 | } else { |
| 3324 | if (index == 0) { |
| 3325 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3326 | hbd[index].pa_hi = |
| 3327 | putPaddrHigh(mbx_dmabuf->phys + |
| 3328 | sizeof(MAILBOX_t)); |
| 3329 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3330 | hbd[index].pa_lo = |
| 3331 | putPaddrLow(mbx_dmabuf->phys + |
| 3332 | sizeof(MAILBOX_t)); |
| 3333 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3334 | "3007 SLI_CONFIG(hbd)[%d], " |
| 3335 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3336 | index, |
| 3337 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3338 | &sli_cfg_mbx->un. |
| 3339 | sli_config_emb1_subsys.hbd[index]), |
| 3340 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3341 | hbd[index].pa_hi, |
| 3342 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3343 | hbd[index].pa_lo); |
| 3344 | |
| 3345 | } else { |
| 3346 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3347 | hbd[index].pa_hi = |
| 3348 | putPaddrHigh(ext_dmabuf->phys); |
| 3349 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3350 | hbd[index].pa_lo = |
| 3351 | putPaddrLow(ext_dmabuf->phys); |
| 3352 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3353 | "3008 SLI_CONFIG(hbd)[%d], " |
| 3354 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3355 | index, |
| 3356 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3357 | &sli_cfg_mbx->un. |
| 3358 | sli_config_emb1_subsys.hbd[index]), |
| 3359 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3360 | hbd[index].pa_hi, |
| 3361 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3362 | hbd[index].pa_lo); |
| 3363 | } |
| 3364 | } |
| 3365 | return; |
| 3366 | } |
| 3367 | |
| 3368 | /** |
| 3369 | * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read |
| 3370 | * @phba: Pointer to HBA context object. |
| 3371 | * @mb: Pointer to a BSG mailbox object. |
| 3372 | * @nemb_tp: Enumerate of non-embedded mailbox command type. |
| 3373 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 3374 | * |
| 3375 | * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with |
| 3376 | * non-embedded external bufffers. |
| 3377 | **/ |
| 3378 | static int |
| 3379 | lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3380 | enum nemb_type nemb_tp, |
| 3381 | struct lpfc_dmabuf *dmabuf) |
| 3382 | { |
| 3383 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3384 | struct dfc_mbox_req *mbox_req; |
| 3385 | struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf; |
| 3386 | uint32_t ext_buf_cnt, ext_buf_index; |
| 3387 | struct lpfc_dmabuf *ext_dmabuf = NULL; |
| 3388 | struct bsg_job_data *dd_data = NULL; |
| 3389 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 3390 | MAILBOX_t *pmb; |
| 3391 | uint8_t *pmbx; |
| 3392 | int rc, i; |
| 3393 | |
| 3394 | mbox_req = |
| 3395 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 3396 | |
| 3397 | /* pointer to the start of mailbox command */ |
| 3398 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3399 | |
| 3400 | if (nemb_tp == nemb_mse) { |
| 3401 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, |
| 3402 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); |
| 3403 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { |
| 3404 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3405 | "2945 Handled SLI_CONFIG(mse) rd, " |
| 3406 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3407 | ext_buf_cnt, |
| 3408 | LPFC_MBX_SLI_CONFIG_MAX_MSE); |
| 3409 | rc = -ERANGE; |
| 3410 | goto job_error; |
| 3411 | } |
| 3412 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3413 | "2941 Handled SLI_CONFIG(mse) rd, " |
| 3414 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3415 | } else { |
| 3416 | /* sanity check on interface type for support */ |
| 3417 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 3418 | LPFC_SLI_INTF_IF_TYPE_2) { |
| 3419 | rc = -ENODEV; |
| 3420 | goto job_error; |
| 3421 | } |
| 3422 | /* nemb_tp == nemb_hbd */ |
| 3423 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; |
| 3424 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { |
| 3425 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3426 | "2946 Handled SLI_CONFIG(hbd) rd, " |
| 3427 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3428 | ext_buf_cnt, |
| 3429 | LPFC_MBX_SLI_CONFIG_MAX_HBD); |
| 3430 | rc = -ERANGE; |
| 3431 | goto job_error; |
| 3432 | } |
| 3433 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3434 | "2942 Handled SLI_CONFIG(hbd) rd, " |
| 3435 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3436 | } |
| 3437 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3438 | /* before dma descriptor setup */ |
| 3439 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, |
| 3440 | sta_pre_addr, dmabuf, ext_buf_cnt); |
| 3441 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3442 | /* reject non-embedded mailbox command with none external buffer */ |
| 3443 | if (ext_buf_cnt == 0) { |
| 3444 | rc = -EPERM; |
| 3445 | goto job_error; |
| 3446 | } else if (ext_buf_cnt > 1) { |
| 3447 | /* additional external read buffers */ |
| 3448 | for (i = 1; i < ext_buf_cnt; i++) { |
| 3449 | ext_dmabuf = lpfc_bsg_dma_page_alloc(phba); |
| 3450 | if (!ext_dmabuf) { |
| 3451 | rc = -ENOMEM; |
| 3452 | goto job_error; |
| 3453 | } |
| 3454 | list_add_tail(&ext_dmabuf->list, |
| 3455 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3456 | } |
| 3457 | } |
| 3458 | |
| 3459 | /* bsg tracking structure */ |
| 3460 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 3461 | if (!dd_data) { |
| 3462 | rc = -ENOMEM; |
| 3463 | goto job_error; |
| 3464 | } |
| 3465 | |
| 3466 | /* mailbox command structure for base driver */ |
| 3467 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 3468 | if (!pmboxq) { |
| 3469 | rc = -ENOMEM; |
| 3470 | goto job_error; |
| 3471 | } |
| 3472 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 3473 | |
| 3474 | /* for the first external buffer */ |
| 3475 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); |
| 3476 | |
| 3477 | /* for the rest of external buffer descriptors if any */ |
| 3478 | if (ext_buf_cnt > 1) { |
| 3479 | ext_buf_index = 1; |
| 3480 | list_for_each_entry_safe(curr_dmabuf, next_dmabuf, |
| 3481 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) { |
| 3482 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, |
| 3483 | ext_buf_index, dmabuf, |
| 3484 | curr_dmabuf); |
| 3485 | ext_buf_index++; |
| 3486 | } |
| 3487 | } |
| 3488 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3489 | /* after dma descriptor setup */ |
| 3490 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, |
| 3491 | sta_pos_addr, dmabuf, ext_buf_cnt); |
| 3492 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3493 | /* construct base driver mbox command */ |
| 3494 | pmb = &pmboxq->u.mb; |
| 3495 | pmbx = (uint8_t *)dmabuf->virt; |
| 3496 | memcpy(pmb, pmbx, sizeof(*pmb)); |
| 3497 | pmb->mbxOwner = OWN_HOST; |
| 3498 | pmboxq->vport = phba->pport; |
| 3499 | |
| 3500 | /* multi-buffer handling context */ |
| 3501 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; |
| 3502 | phba->mbox_ext_buf_ctx.mboxType = mbox_rd; |
| 3503 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; |
| 3504 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; |
| 3505 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; |
| 3506 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; |
| 3507 | |
| 3508 | /* callback for multi-buffer read mailbox command */ |
| 3509 | pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl; |
| 3510 | |
| 3511 | /* context fields to callback function */ |
| 3512 | pmboxq->context1 = dd_data; |
| 3513 | dd_data->type = TYPE_MBOX; |
| 3514 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 3515 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
| 3516 | dd_data->context_un.mbox.set_job = job; |
| 3517 | job->dd_data = dd_data; |
| 3518 | |
| 3519 | /* state change */ |
| 3520 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
| 3521 | |
| 3522 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 3523 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 3524 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3525 | "2947 Issued SLI_CONFIG ext-buffer " |
| 3526 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3527 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3528 | } |
| 3529 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3530 | "2948 Failed to issue SLI_CONFIG ext-buffer " |
| 3531 | "maibox command, rc:x%x\n", rc); |
| 3532 | rc = -EPIPE; |
| 3533 | |
| 3534 | job_error: |
| 3535 | if (pmboxq) |
| 3536 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3537 | lpfc_bsg_dma_page_list_free(phba, |
| 3538 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3539 | kfree(dd_data); |
| 3540 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; |
| 3541 | return rc; |
| 3542 | } |
| 3543 | |
| 3544 | /** |
| 3545 | * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write |
| 3546 | * @phba: Pointer to HBA context object. |
| 3547 | * @mb: Pointer to a BSG mailbox object. |
| 3548 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 3549 | * |
| 3550 | * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with |
| 3551 | * non-embedded external bufffers. |
| 3552 | **/ |
| 3553 | static int |
| 3554 | lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3555 | enum nemb_type nemb_tp, |
| 3556 | struct lpfc_dmabuf *dmabuf) |
| 3557 | { |
| 3558 | struct dfc_mbox_req *mbox_req; |
| 3559 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3560 | uint32_t ext_buf_cnt; |
| 3561 | struct bsg_job_data *dd_data = NULL; |
| 3562 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 3563 | MAILBOX_t *pmb; |
| 3564 | uint8_t *mbx; |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3565 | int rc = SLI_CONFIG_NOT_HANDLED, i; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3566 | |
| 3567 | mbox_req = |
| 3568 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 3569 | |
| 3570 | /* pointer to the start of mailbox command */ |
| 3571 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3572 | |
| 3573 | if (nemb_tp == nemb_mse) { |
| 3574 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, |
| 3575 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); |
| 3576 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { |
| 3577 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3578 | "2953 Handled SLI_CONFIG(mse) wr, " |
| 3579 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3580 | ext_buf_cnt, |
| 3581 | LPFC_MBX_SLI_CONFIG_MAX_MSE); |
| 3582 | return -ERANGE; |
| 3583 | } |
| 3584 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3585 | "2949 Handled SLI_CONFIG(mse) wr, " |
| 3586 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3587 | } else { |
| 3588 | /* sanity check on interface type for support */ |
| 3589 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 3590 | LPFC_SLI_INTF_IF_TYPE_2) |
| 3591 | return -ENODEV; |
| 3592 | /* nemb_tp == nemb_hbd */ |
| 3593 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; |
| 3594 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { |
| 3595 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3596 | "2954 Handled SLI_CONFIG(hbd) wr, " |
| 3597 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3598 | ext_buf_cnt, |
| 3599 | LPFC_MBX_SLI_CONFIG_MAX_HBD); |
| 3600 | return -ERANGE; |
| 3601 | } |
| 3602 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3603 | "2950 Handled SLI_CONFIG(hbd) wr, " |
| 3604 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3605 | } |
| 3606 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3607 | /* before dma buffer descriptor setup */ |
| 3608 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, |
| 3609 | sta_pre_addr, dmabuf, ext_buf_cnt); |
| 3610 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3611 | if (ext_buf_cnt == 0) |
| 3612 | return -EPERM; |
| 3613 | |
| 3614 | /* for the first external buffer */ |
| 3615 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); |
| 3616 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3617 | /* after dma descriptor setup */ |
| 3618 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, |
| 3619 | sta_pos_addr, dmabuf, ext_buf_cnt); |
| 3620 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3621 | /* log for looking forward */ |
| 3622 | for (i = 1; i < ext_buf_cnt; i++) { |
| 3623 | if (nemb_tp == nemb_mse) |
| 3624 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3625 | "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n", |
| 3626 | i, sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3627 | mse[i].buf_len); |
| 3628 | else |
| 3629 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3630 | "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n", |
| 3631 | i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3632 | &sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3633 | hbd[i])); |
| 3634 | } |
| 3635 | |
| 3636 | /* multi-buffer handling context */ |
| 3637 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; |
| 3638 | phba->mbox_ext_buf_ctx.mboxType = mbox_wr; |
| 3639 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; |
| 3640 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; |
| 3641 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; |
| 3642 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; |
| 3643 | |
| 3644 | if (ext_buf_cnt == 1) { |
| 3645 | /* bsg tracking structure */ |
| 3646 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 3647 | if (!dd_data) { |
| 3648 | rc = -ENOMEM; |
| 3649 | goto job_error; |
| 3650 | } |
| 3651 | |
| 3652 | /* mailbox command structure for base driver */ |
| 3653 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 3654 | if (!pmboxq) { |
| 3655 | rc = -ENOMEM; |
| 3656 | goto job_error; |
| 3657 | } |
| 3658 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 3659 | pmb = &pmboxq->u.mb; |
| 3660 | mbx = (uint8_t *)dmabuf->virt; |
| 3661 | memcpy(pmb, mbx, sizeof(*pmb)); |
| 3662 | pmb->mbxOwner = OWN_HOST; |
| 3663 | pmboxq->vport = phba->pport; |
| 3664 | |
| 3665 | /* callback for multi-buffer read mailbox command */ |
| 3666 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; |
| 3667 | |
| 3668 | /* context fields to callback function */ |
| 3669 | pmboxq->context1 = dd_data; |
| 3670 | dd_data->type = TYPE_MBOX; |
| 3671 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 3672 | dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx; |
| 3673 | dd_data->context_un.mbox.set_job = job; |
| 3674 | job->dd_data = dd_data; |
| 3675 | |
| 3676 | /* state change */ |
| 3677 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
| 3678 | |
| 3679 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 3680 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 3681 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3682 | "2955 Issued SLI_CONFIG ext-buffer " |
| 3683 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3684 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3685 | } |
| 3686 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3687 | "2956 Failed to issue SLI_CONFIG ext-buffer " |
| 3688 | "maibox command, rc:x%x\n", rc); |
| 3689 | rc = -EPIPE; |
| 3690 | } |
| 3691 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3692 | /* wait for additoinal external buffers */ |
| 3693 | job->reply->result = 0; |
| 3694 | job->job_done(job); |
| 3695 | return SLI_CONFIG_HANDLED; |
| 3696 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3697 | job_error: |
| 3698 | if (pmboxq) |
| 3699 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3700 | kfree(dd_data); |
| 3701 | |
| 3702 | return rc; |
| 3703 | } |
| 3704 | |
| 3705 | /** |
| 3706 | * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer |
| 3707 | * @phba: Pointer to HBA context object. |
| 3708 | * @mb: Pointer to a BSG mailbox object. |
| 3709 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 3710 | * |
| 3711 | * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded |
| 3712 | * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B |
| 3713 | * with embedded sussystem 0x1 and opcodes with external HBDs. |
| 3714 | **/ |
| 3715 | static int |
| 3716 | lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3717 | struct lpfc_dmabuf *dmabuf) |
| 3718 | { |
| 3719 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3720 | uint32_t subsys; |
| 3721 | uint32_t opcode; |
| 3722 | int rc = SLI_CONFIG_NOT_HANDLED; |
| 3723 | |
| 3724 | /* state change */ |
| 3725 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST; |
| 3726 | |
| 3727 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3728 | |
| 3729 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, |
| 3730 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { |
| 3731 | subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys, |
| 3732 | &sli_cfg_mbx->un.sli_config_emb0_subsys); |
| 3733 | opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode, |
| 3734 | &sli_cfg_mbx->un.sli_config_emb0_subsys); |
| 3735 | if (subsys == SLI_CONFIG_SUBSYS_FCOE) { |
| 3736 | switch (opcode) { |
| 3737 | case FCOE_OPCODE_READ_FCF: |
| 3738 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3739 | "2957 Handled SLI_CONFIG " |
| 3740 | "subsys_fcoe, opcode:x%x\n", |
| 3741 | opcode); |
| 3742 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, |
| 3743 | nemb_mse, dmabuf); |
| 3744 | break; |
| 3745 | case FCOE_OPCODE_ADD_FCF: |
| 3746 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3747 | "2958 Handled SLI_CONFIG " |
| 3748 | "subsys_fcoe, opcode:x%x\n", |
| 3749 | opcode); |
| 3750 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, |
| 3751 | nemb_mse, dmabuf); |
| 3752 | break; |
| 3753 | default: |
| 3754 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3755 | "2959 Not handled SLI_CONFIG " |
| 3756 | "subsys_fcoe, opcode:x%x\n", |
| 3757 | opcode); |
| 3758 | rc = SLI_CONFIG_NOT_HANDLED; |
| 3759 | break; |
| 3760 | } |
| 3761 | } else { |
| 3762 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3763 | "2977 Handled SLI_CONFIG " |
| 3764 | "subsys:x%d, opcode:x%x\n", |
| 3765 | subsys, opcode); |
| 3766 | rc = SLI_CONFIG_NOT_HANDLED; |
| 3767 | } |
| 3768 | } else { |
| 3769 | subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys, |
| 3770 | &sli_cfg_mbx->un.sli_config_emb1_subsys); |
| 3771 | opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode, |
| 3772 | &sli_cfg_mbx->un.sli_config_emb1_subsys); |
| 3773 | if (subsys == SLI_CONFIG_SUBSYS_COMN) { |
| 3774 | switch (opcode) { |
| 3775 | case COMN_OPCODE_READ_OBJECT: |
| 3776 | case COMN_OPCODE_READ_OBJECT_LIST: |
| 3777 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3778 | "2960 Handled SLI_CONFIG " |
| 3779 | "subsys_comn, opcode:x%x\n", |
| 3780 | opcode); |
| 3781 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, |
| 3782 | nemb_hbd, dmabuf); |
| 3783 | break; |
| 3784 | case COMN_OPCODE_WRITE_OBJECT: |
| 3785 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3786 | "2961 Handled SLI_CONFIG " |
| 3787 | "subsys_comn, opcode:x%x\n", |
| 3788 | opcode); |
| 3789 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, |
| 3790 | nemb_hbd, dmabuf); |
| 3791 | break; |
| 3792 | default: |
| 3793 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3794 | "2962 Not handled SLI_CONFIG " |
| 3795 | "subsys_comn, opcode:x%x\n", |
| 3796 | opcode); |
| 3797 | rc = SLI_CONFIG_NOT_HANDLED; |
| 3798 | break; |
| 3799 | } |
| 3800 | } else { |
| 3801 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3802 | "2978 Handled SLI_CONFIG " |
| 3803 | "subsys:x%d, opcode:x%x\n", |
| 3804 | subsys, opcode); |
| 3805 | rc = SLI_CONFIG_NOT_HANDLED; |
| 3806 | } |
| 3807 | } |
| 3808 | return rc; |
| 3809 | } |
| 3810 | |
| 3811 | /** |
| 3812 | * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers |
| 3813 | * @phba: Pointer to HBA context object. |
| 3814 | * |
| 3815 | * This routine is for requesting to abort a pass-through mailbox command with |
| 3816 | * multiple external buffers due to error condition. |
| 3817 | **/ |
| 3818 | static void |
| 3819 | lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba) |
| 3820 | { |
| 3821 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
| 3822 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; |
| 3823 | else |
| 3824 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3825 | return; |
| 3826 | } |
| 3827 | |
| 3828 | /** |
| 3829 | * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer |
| 3830 | * @phba: Pointer to HBA context object. |
| 3831 | * @dmabuf: Pointer to a DMA buffer descriptor. |
| 3832 | * |
| 3833 | * This routine extracts the next mailbox read external buffer back to |
| 3834 | * user space through BSG. |
| 3835 | **/ |
| 3836 | static int |
| 3837 | lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job) |
| 3838 | { |
| 3839 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3840 | struct lpfc_dmabuf *dmabuf; |
| 3841 | uint8_t *pbuf; |
| 3842 | uint32_t size; |
| 3843 | uint32_t index; |
| 3844 | |
| 3845 | index = phba->mbox_ext_buf_ctx.seqNum; |
| 3846 | phba->mbox_ext_buf_ctx.seqNum++; |
| 3847 | |
| 3848 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) |
| 3849 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; |
| 3850 | |
| 3851 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { |
| 3852 | size = bsg_bf_get(lpfc_mbox_sli_config_mse_len, |
| 3853 | &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]); |
| 3854 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3855 | "2963 SLI_CONFIG (mse) ext-buffer rd get " |
| 3856 | "buffer[%d], size:%d\n", index, size); |
| 3857 | } else { |
| 3858 | size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3859 | &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]); |
| 3860 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3861 | "2964 SLI_CONFIG (hbd) ext-buffer rd get " |
| 3862 | "buffer[%d], size:%d\n", index, size); |
| 3863 | } |
| 3864 | if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list)) |
| 3865 | return -EPIPE; |
| 3866 | dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list, |
| 3867 | struct lpfc_dmabuf, list); |
| 3868 | list_del_init(&dmabuf->list); |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3869 | |
| 3870 | /* after dma buffer descriptor setup */ |
| 3871 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, |
| 3872 | mbox_rd, dma_ebuf, sta_pos_addr, |
| 3873 | dmabuf, index); |
| 3874 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3875 | pbuf = (uint8_t *)dmabuf->virt; |
| 3876 | job->reply->reply_payload_rcv_len = |
| 3877 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 3878 | job->reply_payload.sg_cnt, |
| 3879 | pbuf, size); |
| 3880 | |
| 3881 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 3882 | |
| 3883 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
| 3884 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3885 | "2965 SLI_CONFIG (hbd) ext-buffer rd mbox " |
| 3886 | "command session done\n"); |
| 3887 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3888 | } |
| 3889 | |
| 3890 | job->reply->result = 0; |
| 3891 | job->job_done(job); |
| 3892 | |
| 3893 | return SLI_CONFIG_HANDLED; |
| 3894 | } |
| 3895 | |
| 3896 | /** |
| 3897 | * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer |
| 3898 | * @phba: Pointer to HBA context object. |
| 3899 | * @dmabuf: Pointer to a DMA buffer descriptor. |
| 3900 | * |
| 3901 | * This routine sets up the next mailbox read external buffer obtained |
| 3902 | * from user space through BSG. |
| 3903 | **/ |
| 3904 | static int |
| 3905 | lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3906 | struct lpfc_dmabuf *dmabuf) |
| 3907 | { |
| 3908 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3909 | struct bsg_job_data *dd_data = NULL; |
| 3910 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 3911 | MAILBOX_t *pmb; |
| 3912 | enum nemb_type nemb_tp; |
| 3913 | uint8_t *pbuf; |
| 3914 | uint32_t size; |
| 3915 | uint32_t index; |
| 3916 | int rc; |
| 3917 | |
| 3918 | index = phba->mbox_ext_buf_ctx.seqNum; |
| 3919 | phba->mbox_ext_buf_ctx.seqNum++; |
| 3920 | nemb_tp = phba->mbox_ext_buf_ctx.nembType; |
| 3921 | |
| 3922 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) |
| 3923 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; |
| 3924 | |
| 3925 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 3926 | if (!dd_data) { |
| 3927 | rc = -ENOMEM; |
| 3928 | goto job_error; |
| 3929 | } |
| 3930 | |
| 3931 | pbuf = (uint8_t *)dmabuf->virt; |
| 3932 | size = job->request_payload.payload_len; |
| 3933 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 3934 | job->request_payload.sg_cnt, |
| 3935 | pbuf, size); |
| 3936 | |
| 3937 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { |
| 3938 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3939 | "2966 SLI_CONFIG (mse) ext-buffer wr set " |
| 3940 | "buffer[%d], size:%d\n", |
| 3941 | phba->mbox_ext_buf_ctx.seqNum, size); |
| 3942 | |
| 3943 | } else { |
| 3944 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3945 | "2967 SLI_CONFIG (hbd) ext-buffer wr set " |
| 3946 | "buffer[%d], size:%d\n", |
| 3947 | phba->mbox_ext_buf_ctx.seqNum, size); |
| 3948 | |
| 3949 | } |
| 3950 | |
| 3951 | /* set up external buffer descriptor and add to external buffer list */ |
| 3952 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index, |
| 3953 | phba->mbox_ext_buf_ctx.mbx_dmabuf, |
| 3954 | dmabuf); |
| 3955 | list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3956 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3957 | /* after write dma buffer */ |
| 3958 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, |
| 3959 | mbox_wr, dma_ebuf, sta_pos_addr, |
| 3960 | dmabuf, index); |
| 3961 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3962 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
| 3963 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3964 | "2968 SLI_CONFIG ext-buffer wr all %d " |
| 3965 | "ebuffers received\n", |
| 3966 | phba->mbox_ext_buf_ctx.numBuf); |
| 3967 | /* mailbox command structure for base driver */ |
| 3968 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 3969 | if (!pmboxq) { |
| 3970 | rc = -ENOMEM; |
| 3971 | goto job_error; |
| 3972 | } |
| 3973 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 3974 | pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; |
| 3975 | pmb = &pmboxq->u.mb; |
| 3976 | memcpy(pmb, pbuf, sizeof(*pmb)); |
| 3977 | pmb->mbxOwner = OWN_HOST; |
| 3978 | pmboxq->vport = phba->pport; |
| 3979 | |
| 3980 | /* callback for multi-buffer write mailbox command */ |
| 3981 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; |
| 3982 | |
| 3983 | /* context fields to callback function */ |
| 3984 | pmboxq->context1 = dd_data; |
| 3985 | dd_data->type = TYPE_MBOX; |
| 3986 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 3987 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf; |
| 3988 | dd_data->context_un.mbox.set_job = job; |
| 3989 | job->dd_data = dd_data; |
| 3990 | |
| 3991 | /* state change */ |
| 3992 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
| 3993 | |
| 3994 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 3995 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 3996 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3997 | "2969 Issued SLI_CONFIG ext-buffer " |
| 3998 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3999 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4000 | } |
| 4001 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4002 | "2970 Failed to issue SLI_CONFIG ext-buffer " |
| 4003 | "maibox command, rc:x%x\n", rc); |
| 4004 | rc = -EPIPE; |
| 4005 | goto job_error; |
| 4006 | } |
| 4007 | |
| 4008 | /* wait for additoinal external buffers */ |
| 4009 | job->reply->result = 0; |
| 4010 | job->job_done(job); |
| 4011 | return SLI_CONFIG_HANDLED; |
| 4012 | |
| 4013 | job_error: |
| 4014 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 4015 | kfree(dd_data); |
| 4016 | |
| 4017 | return rc; |
| 4018 | } |
| 4019 | |
| 4020 | /** |
| 4021 | * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd |
| 4022 | * @phba: Pointer to HBA context object. |
| 4023 | * @mb: Pointer to a BSG mailbox object. |
| 4024 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 4025 | * |
| 4026 | * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox |
| 4027 | * command with multiple non-embedded external buffers. |
| 4028 | **/ |
| 4029 | static int |
| 4030 | lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4031 | struct lpfc_dmabuf *dmabuf) |
| 4032 | { |
| 4033 | int rc; |
| 4034 | |
| 4035 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4036 | "2971 SLI_CONFIG buffer (type:x%x)\n", |
| 4037 | phba->mbox_ext_buf_ctx.mboxType); |
| 4038 | |
| 4039 | if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) { |
| 4040 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) { |
| 4041 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4042 | "2972 SLI_CONFIG rd buffer state " |
| 4043 | "mismatch:x%x\n", |
| 4044 | phba->mbox_ext_buf_ctx.state); |
| 4045 | lpfc_bsg_mbox_ext_abort(phba); |
| 4046 | return -EPIPE; |
| 4047 | } |
| 4048 | rc = lpfc_bsg_read_ebuf_get(phba, job); |
| 4049 | if (rc == SLI_CONFIG_HANDLED) |
| 4050 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 4051 | } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */ |
| 4052 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) { |
| 4053 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4054 | "2973 SLI_CONFIG wr buffer state " |
| 4055 | "mismatch:x%x\n", |
| 4056 | phba->mbox_ext_buf_ctx.state); |
| 4057 | lpfc_bsg_mbox_ext_abort(phba); |
| 4058 | return -EPIPE; |
| 4059 | } |
| 4060 | rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf); |
| 4061 | } |
| 4062 | return rc; |
| 4063 | } |
| 4064 | |
| 4065 | /** |
| 4066 | * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer |
| 4067 | * @phba: Pointer to HBA context object. |
| 4068 | * @mb: Pointer to a BSG mailbox object. |
| 4069 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 4070 | * |
| 4071 | * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG |
| 4072 | * (0x9B) mailbox commands and external buffers. |
| 4073 | **/ |
| 4074 | static int |
| 4075 | lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4076 | struct lpfc_dmabuf *dmabuf) |
| 4077 | { |
| 4078 | struct dfc_mbox_req *mbox_req; |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4079 | int rc = SLI_CONFIG_NOT_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4080 | |
| 4081 | mbox_req = |
| 4082 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 4083 | |
| 4084 | /* mbox command with/without single external buffer */ |
| 4085 | if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0) |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4086 | return rc; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4087 | |
| 4088 | /* mbox command and first external buffer */ |
| 4089 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) { |
| 4090 | if (mbox_req->extSeqNum == 1) { |
| 4091 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4092 | "2974 SLI_CONFIG mailbox: tag:%d, " |
| 4093 | "seq:%d\n", mbox_req->extMboxTag, |
| 4094 | mbox_req->extSeqNum); |
| 4095 | rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf); |
| 4096 | return rc; |
| 4097 | } else |
| 4098 | goto sli_cfg_ext_error; |
| 4099 | } |
| 4100 | |
| 4101 | /* |
| 4102 | * handle additional external buffers |
| 4103 | */ |
| 4104 | |
| 4105 | /* check broken pipe conditions */ |
| 4106 | if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag) |
| 4107 | goto sli_cfg_ext_error; |
| 4108 | if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf) |
| 4109 | goto sli_cfg_ext_error; |
| 4110 | if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1) |
| 4111 | goto sli_cfg_ext_error; |
| 4112 | |
| 4113 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4114 | "2975 SLI_CONFIG mailbox external buffer: " |
| 4115 | "extSta:x%x, tag:%d, seq:%d\n", |
| 4116 | phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag, |
| 4117 | mbox_req->extSeqNum); |
| 4118 | rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf); |
| 4119 | return rc; |
| 4120 | |
| 4121 | sli_cfg_ext_error: |
| 4122 | /* all other cases, broken pipe */ |
| 4123 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4124 | "2976 SLI_CONFIG mailbox broken pipe: " |
| 4125 | "ctxSta:x%x, ctxNumBuf:%d " |
| 4126 | "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n", |
| 4127 | phba->mbox_ext_buf_ctx.state, |
| 4128 | phba->mbox_ext_buf_ctx.numBuf, |
| 4129 | phba->mbox_ext_buf_ctx.mbxTag, |
| 4130 | phba->mbox_ext_buf_ctx.seqNum, |
| 4131 | mbox_req->extMboxTag, mbox_req->extSeqNum); |
| 4132 | |
| 4133 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 4134 | |
| 4135 | return -EPIPE; |
| 4136 | } |
| 4137 | |
| 4138 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4139 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app |
| 4140 | * @phba: Pointer to HBA context object. |
| 4141 | * @mb: Pointer to a mailbox object. |
| 4142 | * @vport: Pointer to a vport object. |
| 4143 | * |
| 4144 | * Allocate a tracking object, mailbox command memory, get a mailbox |
| 4145 | * from the mailbox pool, copy the caller mailbox command. |
| 4146 | * |
| 4147 | * If offline and the sli is active we need to poll for the command (port is |
| 4148 | * being reset) and com-plete the job, otherwise issue the mailbox command and |
| 4149 | * let our completion handler finish the command. |
| 4150 | **/ |
| 4151 | static uint32_t |
| 4152 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4153 | struct lpfc_vport *vport) |
| 4154 | { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4155 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
| 4156 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ |
| 4157 | /* a 4k buffer to hold the mb and extended data from/to the bsg */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4158 | uint8_t *pmbx = NULL; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4159 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4160 | struct lpfc_dmabuf *dmabuf = NULL; |
| 4161 | struct dfc_mbox_req *mbox_req; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4162 | struct READ_EVENT_LOG_VAR *rdEventLog; |
| 4163 | uint32_t transmit_length, receive_length, mode; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4164 | struct lpfc_mbx_sli4_config *sli4_config; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4165 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
| 4166 | struct mbox_header *header; |
| 4167 | struct ulp_bde64 *bde; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4168 | uint8_t *ext = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4169 | int rc = 0; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4170 | uint8_t *from; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4171 | uint32_t size; |
| 4172 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4173 | |
| 4174 | /* in case no data is transferred */ |
| 4175 | job->reply->reply_payload_rcv_len = 0; |
| 4176 | |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4177 | /* sanity check to protect driver */ |
| 4178 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || |
| 4179 | job->request_payload.payload_len > BSG_MBOX_SIZE) { |
| 4180 | rc = -ERANGE; |
| 4181 | goto job_done; |
| 4182 | } |
| 4183 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4184 | /* |
| 4185 | * Don't allow mailbox commands to be sent when blocked or when in |
| 4186 | * the middle of discovery |
| 4187 | */ |
| 4188 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
| 4189 | rc = -EAGAIN; |
| 4190 | goto job_done; |
| 4191 | } |
| 4192 | |
| 4193 | mbox_req = |
| 4194 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 4195 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4196 | /* check if requested extended data lengths are valid */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4197 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
| 4198 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4199 | rc = -ERANGE; |
| 4200 | goto job_done; |
| 4201 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4202 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4203 | dmabuf = lpfc_bsg_dma_page_alloc(phba); |
| 4204 | if (!dmabuf || !dmabuf->virt) { |
| 4205 | rc = -ENOMEM; |
| 4206 | goto job_done; |
| 4207 | } |
| 4208 | |
| 4209 | /* Get the mailbox command or external buffer from BSG */ |
| 4210 | pmbx = (uint8_t *)dmabuf->virt; |
| 4211 | size = job->request_payload.payload_len; |
| 4212 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 4213 | job->request_payload.sg_cnt, pmbx, size); |
| 4214 | |
| 4215 | /* Handle possible SLI_CONFIG with non-embedded payloads */ |
| 4216 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 4217 | rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf); |
| 4218 | if (rc == SLI_CONFIG_HANDLED) |
| 4219 | goto job_cont; |
| 4220 | if (rc) |
| 4221 | goto job_done; |
| 4222 | /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */ |
| 4223 | } |
| 4224 | |
| 4225 | rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport); |
| 4226 | if (rc != 0) |
| 4227 | goto job_done; /* must be negative */ |
| 4228 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4229 | /* allocate our bsg tracking structure */ |
| 4230 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 4231 | if (!dd_data) { |
| 4232 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4233 | "2727 Failed allocation of dd_data\n"); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4234 | rc = -ENOMEM; |
| 4235 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4236 | } |
| 4237 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4238 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 4239 | if (!pmboxq) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4240 | rc = -ENOMEM; |
| 4241 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4242 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4243 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4244 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4245 | pmb = &pmboxq->u.mb; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4246 | memcpy(pmb, pmbx, sizeof(*pmb)); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4247 | pmb->mbxOwner = OWN_HOST; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4248 | pmboxq->vport = vport; |
| 4249 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4250 | /* If HBA encountered an error attention, allow only DUMP |
| 4251 | * or RESTART mailbox commands until the HBA is restarted. |
| 4252 | */ |
| 4253 | if (phba->pport->stopped && |
| 4254 | pmb->mbxCommand != MBX_DUMP_MEMORY && |
| 4255 | pmb->mbxCommand != MBX_RESTART && |
| 4256 | pmb->mbxCommand != MBX_WRITE_VPARMS && |
| 4257 | pmb->mbxCommand != MBX_WRITE_WWN) |
| 4258 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| 4259 | "2797 mbox: Issued mailbox cmd " |
| 4260 | "0x%x while in stopped state.\n", |
| 4261 | pmb->mbxCommand); |
| 4262 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4263 | /* extended mailbox commands will need an extended buffer */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4264 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4265 | /* any data for the device? */ |
| 4266 | if (mbox_req->inExtWLen) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4267 | from = pmbx; |
| 4268 | ext = from + sizeof(MAILBOX_t); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4269 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4270 | pmboxq->context2 = ext; |
| 4271 | pmboxq->in_ext_byte_len = |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4272 | mbox_req->inExtWLen * sizeof(uint32_t); |
| 4273 | pmboxq->out_ext_byte_len = |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4274 | mbox_req->outExtWLen * sizeof(uint32_t); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4275 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
| 4276 | } |
| 4277 | |
| 4278 | /* biu diag will need a kernel buffer to transfer the data |
| 4279 | * allocate our own buffer and setup the mailbox command to |
| 4280 | * use ours |
| 4281 | */ |
| 4282 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4283 | transmit_length = pmb->un.varWords[1]; |
| 4284 | receive_length = pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4285 | /* transmit length cannot be greater than receive length or |
| 4286 | * mailbox extension size |
| 4287 | */ |
| 4288 | if ((transmit_length > receive_length) || |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4289 | (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4290 | rc = -ERANGE; |
| 4291 | goto job_done; |
| 4292 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4293 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4294 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4295 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4296 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4297 | |
| 4298 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4299 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t) |
| 4300 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4301 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4302 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t) |
| 4303 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4304 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4305 | rdEventLog = &pmb->un.varRdEventLog; |
| 4306 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; |
| 4307 | mode = bf_get(lpfc_event_log, rdEventLog); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4308 | |
| 4309 | /* receive length cannot be greater than mailbox |
| 4310 | * extension size |
| 4311 | */ |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4312 | if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4313 | rc = -ERANGE; |
| 4314 | goto job_done; |
| 4315 | } |
| 4316 | |
| 4317 | /* mode zero uses a bde like biu diags command */ |
| 4318 | if (mode == 0) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4319 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
| 4320 | + sizeof(MAILBOX_t)); |
| 4321 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys |
| 4322 | + sizeof(MAILBOX_t)); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4323 | } |
| 4324 | } else if (phba->sli_rev == LPFC_SLI_REV4) { |
| 4325 | if (pmb->mbxCommand == MBX_DUMP_MEMORY) { |
| 4326 | /* rebuild the command for sli4 using our own buffers |
| 4327 | * like we do for biu diags |
| 4328 | */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4329 | receive_length = pmb->un.varWords[2]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4330 | /* receive length cannot be greater than mailbox |
| 4331 | * extension size |
| 4332 | */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4333 | if (receive_length == 0) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4334 | rc = -ERANGE; |
| 4335 | goto job_done; |
| 4336 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4337 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
| 4338 | + sizeof(MAILBOX_t)); |
| 4339 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys |
| 4340 | + sizeof(MAILBOX_t)); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4341 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
| 4342 | pmb->un.varUpdateCfg.co) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4343 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4344 | |
| 4345 | /* bde size cannot be greater than mailbox ext size */ |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4346 | if (bde->tus.f.bdeSize > |
| 4347 | BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4348 | rc = -ERANGE; |
| 4349 | goto job_done; |
| 4350 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4351 | bde->addrHigh = putPaddrHigh(dmabuf->phys |
| 4352 | + sizeof(MAILBOX_t)); |
| 4353 | bde->addrLow = putPaddrLow(dmabuf->phys |
| 4354 | + sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4355 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4356 | /* Handling non-embedded SLI_CONFIG mailbox command */ |
| 4357 | sli4_config = &pmboxq->u.mqe.un.sli4_config; |
| 4358 | if (!bf_get(lpfc_mbox_hdr_emb, |
| 4359 | &sli4_config->header.cfg_mhdr)) { |
| 4360 | /* rebuild the command for sli4 using our |
| 4361 | * own buffers like we do for biu diags |
| 4362 | */ |
| 4363 | header = (struct mbox_header *) |
| 4364 | &pmb->un.varWords[0]; |
| 4365 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) |
| 4366 | &pmb->un.varWords[0]; |
| 4367 | receive_length = nembed_sge->sge[0].length; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4368 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4369 | /* receive length cannot be greater than |
| 4370 | * mailbox extension size |
| 4371 | */ |
| 4372 | if ((receive_length == 0) || |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4373 | (receive_length > |
| 4374 | BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4375 | rc = -ERANGE; |
| 4376 | goto job_done; |
| 4377 | } |
| 4378 | |
| 4379 | nembed_sge->sge[0].pa_hi = |
| 4380 | putPaddrHigh(dmabuf->phys |
| 4381 | + sizeof(MAILBOX_t)); |
| 4382 | nembed_sge->sge[0].pa_lo = |
| 4383 | putPaddrLow(dmabuf->phys |
| 4384 | + sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4385 | } |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4386 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4387 | } |
| 4388 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4389 | dd_data->context_un.mbox.dmabuffers = dmabuf; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4390 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4391 | /* setup wake call as IOCB callback */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4392 | pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4393 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4394 | /* setup context field to pass wait_queue pointer to wake function */ |
| 4395 | pmboxq->context1 = dd_data; |
| 4396 | dd_data->type = TYPE_MBOX; |
| 4397 | dd_data->context_un.mbox.pmboxq = pmboxq; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4398 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4399 | dd_data->context_un.mbox.set_job = job; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4400 | dd_data->context_un.mbox.ext = ext; |
| 4401 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; |
| 4402 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4403 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4404 | job->dd_data = dd_data; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4405 | |
| 4406 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| 4407 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { |
| 4408 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 4409 | if (rc != MBX_SUCCESS) { |
| 4410 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
| 4411 | goto job_done; |
| 4412 | } |
| 4413 | |
| 4414 | /* job finished, copy the data */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4415 | memcpy(pmbx, pmb, sizeof(*pmb)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4416 | job->reply->reply_payload_rcv_len = |
| 4417 | sg_copy_from_buffer(job->reply_payload.sg_list, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4418 | job->reply_payload.sg_cnt, |
| 4419 | pmbx, size); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4420 | /* not waiting mbox already done */ |
| 4421 | rc = 0; |
| 4422 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4423 | } |
| 4424 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4425 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 4426 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
| 4427 | return 1; /* job started */ |
| 4428 | |
| 4429 | job_done: |
| 4430 | /* common exit for error or job completed inline */ |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4431 | if (pmboxq) |
| 4432 | mempool_free(pmboxq, phba->mbox_mem_pool); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4433 | lpfc_bsg_dma_page_free(phba, dmabuf); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4434 | kfree(dd_data); |
| 4435 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4436 | job_cont: |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4437 | return rc; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4438 | } |
| 4439 | |
| 4440 | /** |
| 4441 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command |
| 4442 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. |
| 4443 | **/ |
| 4444 | static int |
| 4445 | lpfc_bsg_mbox_cmd(struct fc_bsg_job *job) |
| 4446 | { |
| 4447 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 4448 | struct lpfc_hba *phba = vport->phba; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4449 | struct dfc_mbox_req *mbox_req; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4450 | int rc = 0; |
| 4451 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4452 | /* mix-and-match backward compatibility */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4453 | job->reply->reply_payload_rcv_len = 0; |
| 4454 | if (job->request_len < |
| 4455 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4456 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4457 | "2737 Mix-and-match backward compability " |
| 4458 | "between MBOX_REQ old size:%d and " |
| 4459 | "new request size:%d\n", |
| 4460 | (int)(job->request_len - |
| 4461 | sizeof(struct fc_bsg_request)), |
| 4462 | (int)sizeof(struct dfc_mbox_req)); |
| 4463 | mbox_req = (struct dfc_mbox_req *) |
| 4464 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 4465 | mbox_req->extMboxTag = 0; |
| 4466 | mbox_req->extSeqNum = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4467 | } |
| 4468 | |
| 4469 | rc = lpfc_bsg_issue_mbox(phba, job, vport); |
| 4470 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4471 | if (rc == 0) { |
| 4472 | /* job done */ |
| 4473 | job->reply->result = 0; |
| 4474 | job->dd_data = NULL; |
| 4475 | job->job_done(job); |
| 4476 | } else if (rc == 1) |
| 4477 | /* job submitted, will complete later*/ |
| 4478 | rc = 0; /* return zero, no error */ |
| 4479 | else { |
| 4480 | /* some error occurred */ |
| 4481 | job->reply->result = rc; |
| 4482 | job->dd_data = NULL; |
| 4483 | } |
| 4484 | |
| 4485 | return rc; |
| 4486 | } |
| 4487 | |
| 4488 | /** |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4489 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler |
| 4490 | * @phba: Pointer to HBA context object. |
| 4491 | * @cmdiocbq: Pointer to command iocb. |
| 4492 | * @rspiocbq: Pointer to response iocb. |
| 4493 | * |
| 4494 | * This function is the completion handler for iocbs issued using |
| 4495 | * lpfc_menlo_cmd function. This function is called by the |
| 4496 | * ring event handler function without any lock held. This function |
| 4497 | * can be called from both worker thread context and interrupt |
| 4498 | * context. This function also can be called from another thread which |
| 4499 | * cleans up the SLI layer objects. |
| 4500 | * This function copies the contents of the response iocb to the |
| 4501 | * response iocb memory object provided by the caller of |
| 4502 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 4503 | * sleeps for the iocb completion. |
| 4504 | **/ |
| 4505 | static void |
| 4506 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, |
| 4507 | struct lpfc_iocbq *cmdiocbq, |
| 4508 | struct lpfc_iocbq *rspiocbq) |
| 4509 | { |
| 4510 | struct bsg_job_data *dd_data; |
| 4511 | struct fc_bsg_job *job; |
| 4512 | IOCB_t *rsp; |
| 4513 | struct lpfc_dmabuf *bmp; |
| 4514 | struct lpfc_bsg_menlo *menlo; |
| 4515 | unsigned long flags; |
| 4516 | struct menlo_response *menlo_resp; |
| 4517 | int rc = 0; |
| 4518 | |
| 4519 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 4520 | dd_data = cmdiocbq->context1; |
| 4521 | if (!dd_data) { |
| 4522 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4523 | return; |
| 4524 | } |
| 4525 | |
| 4526 | menlo = &dd_data->context_un.menlo; |
| 4527 | job = menlo->set_job; |
| 4528 | job->dd_data = NULL; /* so timeout handler does not reply */ |
| 4529 | |
James Smart | 5989b8d | 2010-10-22 11:06:56 -0400 | [diff] [blame] | 4530 | spin_lock(&phba->hbalock); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4531 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
| 4532 | if (cmdiocbq->context2 && rspiocbq) |
| 4533 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, |
| 4534 | &rspiocbq->iocb, sizeof(IOCB_t)); |
James Smart | 5989b8d | 2010-10-22 11:06:56 -0400 | [diff] [blame] | 4535 | spin_unlock(&phba->hbalock); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4536 | |
| 4537 | bmp = menlo->bmp; |
| 4538 | rspiocbq = menlo->rspiocbq; |
| 4539 | rsp = &rspiocbq->iocb; |
| 4540 | |
| 4541 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 4542 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 4543 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 4544 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 4545 | |
| 4546 | /* always return the xri, this would be used in the case |
| 4547 | * of a menlo download to allow the data to be sent as a continuation |
| 4548 | * of the exchange. |
| 4549 | */ |
| 4550 | menlo_resp = (struct menlo_response *) |
| 4551 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 4552 | menlo_resp->xri = rsp->ulpContext; |
| 4553 | if (rsp->ulpStatus) { |
| 4554 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 4555 | switch (rsp->un.ulpWord[4] & 0xff) { |
| 4556 | case IOERR_SEQUENCE_TIMEOUT: |
| 4557 | rc = -ETIMEDOUT; |
| 4558 | break; |
| 4559 | case IOERR_INVALID_RPI: |
| 4560 | rc = -EFAULT; |
| 4561 | break; |
| 4562 | default: |
| 4563 | rc = -EACCES; |
| 4564 | break; |
| 4565 | } |
| 4566 | } else |
| 4567 | rc = -EACCES; |
| 4568 | } else |
| 4569 | job->reply->reply_payload_rcv_len = |
| 4570 | rsp->un.genreq64.bdl.bdeSize; |
| 4571 | |
| 4572 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 4573 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 4574 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 4575 | kfree(bmp); |
| 4576 | kfree(dd_data); |
| 4577 | /* make error code available to userspace */ |
| 4578 | job->reply->result = rc; |
| 4579 | /* complete the job back to userspace */ |
| 4580 | job->job_done(job); |
| 4581 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4582 | return; |
| 4583 | } |
| 4584 | |
| 4585 | /** |
| 4586 | * lpfc_menlo_cmd - send an ioctl for menlo hardware |
| 4587 | * @job: fc_bsg_job to handle |
| 4588 | * |
| 4589 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, |
| 4590 | * all the command completions will return the xri for the command. |
| 4591 | * For menlo data requests a gen request 64 CX is used to continue the exchange |
| 4592 | * supplied in the menlo request header xri field. |
| 4593 | **/ |
| 4594 | static int |
| 4595 | lpfc_menlo_cmd(struct fc_bsg_job *job) |
| 4596 | { |
| 4597 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 4598 | struct lpfc_hba *phba = vport->phba; |
| 4599 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 4600 | IOCB_t *cmd, *rsp; |
| 4601 | int rc = 0; |
| 4602 | struct menlo_command *menlo_cmd; |
| 4603 | struct menlo_response *menlo_resp; |
| 4604 | struct lpfc_dmabuf *bmp = NULL; |
| 4605 | int request_nseg; |
| 4606 | int reply_nseg; |
| 4607 | struct scatterlist *sgel = NULL; |
| 4608 | int numbde; |
| 4609 | dma_addr_t busaddr; |
| 4610 | struct bsg_job_data *dd_data; |
| 4611 | struct ulp_bde64 *bpl = NULL; |
| 4612 | |
| 4613 | /* in case no data is returned return just the return code */ |
| 4614 | job->reply->reply_payload_rcv_len = 0; |
| 4615 | |
| 4616 | if (job->request_len < |
| 4617 | sizeof(struct fc_bsg_request) + |
| 4618 | sizeof(struct menlo_command)) { |
| 4619 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4620 | "2784 Received MENLO_CMD request below " |
| 4621 | "minimum size\n"); |
| 4622 | rc = -ERANGE; |
| 4623 | goto no_dd_data; |
| 4624 | } |
| 4625 | |
| 4626 | if (job->reply_len < |
| 4627 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { |
| 4628 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4629 | "2785 Received MENLO_CMD reply below " |
| 4630 | "minimum size\n"); |
| 4631 | rc = -ERANGE; |
| 4632 | goto no_dd_data; |
| 4633 | } |
| 4634 | |
| 4635 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { |
| 4636 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4637 | "2786 Adapter does not support menlo " |
| 4638 | "commands\n"); |
| 4639 | rc = -EPERM; |
| 4640 | goto no_dd_data; |
| 4641 | } |
| 4642 | |
| 4643 | menlo_cmd = (struct menlo_command *) |
| 4644 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 4645 | |
| 4646 | menlo_resp = (struct menlo_response *) |
| 4647 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 4648 | |
| 4649 | /* allocate our bsg tracking structure */ |
| 4650 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 4651 | if (!dd_data) { |
| 4652 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4653 | "2787 Failed allocation of dd_data\n"); |
| 4654 | rc = -ENOMEM; |
| 4655 | goto no_dd_data; |
| 4656 | } |
| 4657 | |
| 4658 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 4659 | if (!bmp) { |
| 4660 | rc = -ENOMEM; |
| 4661 | goto free_dd; |
| 4662 | } |
| 4663 | |
| 4664 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 4665 | if (!cmdiocbq) { |
| 4666 | rc = -ENOMEM; |
| 4667 | goto free_bmp; |
| 4668 | } |
| 4669 | |
| 4670 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 4671 | if (!rspiocbq) { |
| 4672 | rc = -ENOMEM; |
| 4673 | goto free_cmdiocbq; |
| 4674 | } |
| 4675 | |
| 4676 | rsp = &rspiocbq->iocb; |
| 4677 | |
| 4678 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 4679 | if (!bmp->virt) { |
| 4680 | rc = -ENOMEM; |
| 4681 | goto free_rspiocbq; |
| 4682 | } |
| 4683 | |
| 4684 | INIT_LIST_HEAD(&bmp->list); |
| 4685 | bpl = (struct ulp_bde64 *) bmp->virt; |
| 4686 | request_nseg = pci_map_sg(phba->pcidev, job->request_payload.sg_list, |
| 4687 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 4688 | for_each_sg(job->request_payload.sg_list, sgel, request_nseg, numbde) { |
| 4689 | busaddr = sg_dma_address(sgel); |
| 4690 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 4691 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 4692 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 4693 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 4694 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 4695 | bpl++; |
| 4696 | } |
| 4697 | |
| 4698 | reply_nseg = pci_map_sg(phba->pcidev, job->reply_payload.sg_list, |
| 4699 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 4700 | for_each_sg(job->reply_payload.sg_list, sgel, reply_nseg, numbde) { |
| 4701 | busaddr = sg_dma_address(sgel); |
| 4702 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 4703 | bpl->tus.f.bdeSize = sg_dma_len(sgel); |
| 4704 | bpl->tus.w = cpu_to_le32(bpl->tus.w); |
| 4705 | bpl->addrLow = cpu_to_le32(putPaddrLow(busaddr)); |
| 4706 | bpl->addrHigh = cpu_to_le32(putPaddrHigh(busaddr)); |
| 4707 | bpl++; |
| 4708 | } |
| 4709 | |
| 4710 | cmd = &cmdiocbq->iocb; |
| 4711 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 4712 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 4713 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 4714 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 4715 | cmd->un.genreq64.bdl.bdeSize = |
| 4716 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 4717 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 4718 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
| 4719 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; |
| 4720 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ |
| 4721 | cmd->ulpBdeCount = 1; |
| 4722 | cmd->ulpClass = CLASS3; |
| 4723 | cmd->ulpOwner = OWN_CHIP; |
| 4724 | cmd->ulpLe = 1; /* Limited Edition */ |
| 4725 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 4726 | cmdiocbq->vport = phba->pport; |
| 4727 | /* We want the firmware to timeout before we do */ |
| 4728 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; |
| 4729 | cmdiocbq->context3 = bmp; |
| 4730 | cmdiocbq->context2 = rspiocbq; |
| 4731 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; |
| 4732 | cmdiocbq->context1 = dd_data; |
| 4733 | cmdiocbq->context2 = rspiocbq; |
| 4734 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { |
| 4735 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 4736 | cmd->ulpPU = MENLO_PU; /* 3 */ |
| 4737 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ |
| 4738 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ |
| 4739 | } else { |
| 4740 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; |
| 4741 | cmd->ulpPU = 1; |
| 4742 | cmd->un.ulpWord[4] = 0; |
| 4743 | cmd->ulpContext = menlo_cmd->xri; |
| 4744 | } |
| 4745 | |
| 4746 | dd_data->type = TYPE_MENLO; |
| 4747 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; |
| 4748 | dd_data->context_un.menlo.rspiocbq = rspiocbq; |
| 4749 | dd_data->context_un.menlo.set_job = job; |
| 4750 | dd_data->context_un.menlo.bmp = bmp; |
| 4751 | |
| 4752 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 4753 | MENLO_TIMEOUT - 5); |
| 4754 | if (rc == IOCB_SUCCESS) |
| 4755 | return 0; /* done for now */ |
| 4756 | |
| 4757 | /* iocb failed so cleanup */ |
| 4758 | pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, |
| 4759 | job->request_payload.sg_cnt, DMA_TO_DEVICE); |
| 4760 | pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, |
| 4761 | job->reply_payload.sg_cnt, DMA_FROM_DEVICE); |
| 4762 | |
| 4763 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 4764 | |
| 4765 | free_rspiocbq: |
| 4766 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 4767 | free_cmdiocbq: |
| 4768 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 4769 | free_bmp: |
| 4770 | kfree(bmp); |
| 4771 | free_dd: |
| 4772 | kfree(dd_data); |
| 4773 | no_dd_data: |
| 4774 | /* make error code available to userspace */ |
| 4775 | job->reply->result = rc; |
| 4776 | job->dd_data = NULL; |
| 4777 | return rc; |
| 4778 | } |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4779 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4780 | /** |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4781 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job |
| 4782 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4783 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4784 | static int |
| 4785 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) |
| 4786 | { |
| 4787 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4788 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4789 | |
| 4790 | switch (command) { |
| 4791 | case LPFC_BSG_VENDOR_SET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4792 | rc = lpfc_bsg_hba_set_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4793 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4794 | case LPFC_BSG_VENDOR_GET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4795 | rc = lpfc_bsg_hba_get_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4796 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4797 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: |
| 4798 | rc = lpfc_bsg_send_mgmt_rsp(job); |
| 4799 | break; |
| 4800 | case LPFC_BSG_VENDOR_DIAG_MODE: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4801 | rc = lpfc_bsg_diag_loopback_mode(job); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4802 | break; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4803 | case LPFC_BSG_VENDOR_DIAG_MODE_END: |
| 4804 | rc = lpfc_sli4_bsg_diag_mode_end(job); |
| 4805 | break; |
| 4806 | case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK: |
| 4807 | rc = lpfc_bsg_diag_loopback_run(job); |
| 4808 | break; |
| 4809 | case LPFC_BSG_VENDOR_LINK_DIAG_TEST: |
| 4810 | rc = lpfc_sli4_bsg_link_diag_test(job); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4811 | break; |
| 4812 | case LPFC_BSG_VENDOR_GET_MGMT_REV: |
| 4813 | rc = lpfc_bsg_get_dfc_rev(job); |
| 4814 | break; |
| 4815 | case LPFC_BSG_VENDOR_MBOX: |
| 4816 | rc = lpfc_bsg_mbox_cmd(job); |
| 4817 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4818 | case LPFC_BSG_VENDOR_MENLO_CMD: |
| 4819 | case LPFC_BSG_VENDOR_MENLO_DATA: |
| 4820 | rc = lpfc_menlo_cmd(job); |
| 4821 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4822 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4823 | rc = -EINVAL; |
| 4824 | job->reply->reply_payload_rcv_len = 0; |
| 4825 | /* make error code available to userspace */ |
| 4826 | job->reply->result = rc; |
| 4827 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4828 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4829 | |
| 4830 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4831 | } |
| 4832 | |
| 4833 | /** |
| 4834 | * lpfc_bsg_request - handle a bsg request from the FC transport |
| 4835 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4836 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4837 | int |
| 4838 | lpfc_bsg_request(struct fc_bsg_job *job) |
| 4839 | { |
| 4840 | uint32_t msgcode; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4841 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4842 | |
| 4843 | msgcode = job->request->msgcode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4844 | switch (msgcode) { |
| 4845 | case FC_BSG_HST_VENDOR: |
| 4846 | rc = lpfc_bsg_hst_vendor(job); |
| 4847 | break; |
| 4848 | case FC_BSG_RPT_ELS: |
| 4849 | rc = lpfc_bsg_rport_els(job); |
| 4850 | break; |
| 4851 | case FC_BSG_RPT_CT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4852 | rc = lpfc_bsg_send_mgmt_cmd(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4853 | break; |
| 4854 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4855 | rc = -EINVAL; |
| 4856 | job->reply->reply_payload_rcv_len = 0; |
| 4857 | /* make error code available to userspace */ |
| 4858 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4859 | break; |
| 4860 | } |
| 4861 | |
| 4862 | return rc; |
| 4863 | } |
| 4864 | |
| 4865 | /** |
| 4866 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport |
| 4867 | * @job: fc_bsg_job that has timed out |
| 4868 | * |
| 4869 | * This function just aborts the job's IOCB. The aborted IOCB will return to |
| 4870 | * the waiting function which will handle passing the error back to userspace |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4871 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4872 | int |
| 4873 | lpfc_bsg_timeout(struct fc_bsg_job *job) |
| 4874 | { |
| 4875 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 4876 | struct lpfc_hba *phba = vport->phba; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4877 | struct lpfc_iocbq *cmdiocb; |
| 4878 | struct lpfc_bsg_event *evt; |
| 4879 | struct lpfc_bsg_iocb *iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4880 | struct lpfc_bsg_mbox *mbox; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4881 | struct lpfc_bsg_menlo *menlo; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4882 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4883 | struct bsg_job_data *dd_data; |
| 4884 | unsigned long flags; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4885 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4886 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 4887 | dd_data = (struct bsg_job_data *)job->dd_data; |
| 4888 | /* timeout and completion crossed paths if no dd_data */ |
| 4889 | if (!dd_data) { |
| 4890 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4891 | return 0; |
| 4892 | } |
| 4893 | |
| 4894 | switch (dd_data->type) { |
| 4895 | case TYPE_IOCB: |
| 4896 | iocb = &dd_data->context_un.iocb; |
| 4897 | cmdiocb = iocb->cmdiocbq; |
| 4898 | /* hint to completion handler that the job timed out */ |
| 4899 | job->reply->result = -EAGAIN; |
| 4900 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4901 | /* this will call our completion handler */ |
| 4902 | spin_lock_irq(&phba->hbalock); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4903 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4904 | spin_unlock_irq(&phba->hbalock); |
| 4905 | break; |
| 4906 | case TYPE_EVT: |
| 4907 | evt = dd_data->context_un.evt; |
| 4908 | /* this event has no job anymore */ |
| 4909 | evt->set_job = NULL; |
| 4910 | job->dd_data = NULL; |
| 4911 | job->reply->reply_payload_rcv_len = 0; |
| 4912 | /* Return -EAGAIN which is our way of signallying the |
| 4913 | * app to retry. |
| 4914 | */ |
| 4915 | job->reply->result = -EAGAIN; |
| 4916 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4917 | job->job_done(job); |
| 4918 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4919 | case TYPE_MBOX: |
| 4920 | mbox = &dd_data->context_un.mbox; |
| 4921 | /* this mbox has no job anymore */ |
| 4922 | mbox->set_job = NULL; |
| 4923 | job->dd_data = NULL; |
| 4924 | job->reply->reply_payload_rcv_len = 0; |
| 4925 | job->reply->result = -EAGAIN; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4926 | /* the mbox completion handler can now be run */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4927 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4928 | job->job_done(job); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4929 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
| 4930 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4931 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4932 | case TYPE_MENLO: |
| 4933 | menlo = &dd_data->context_un.menlo; |
| 4934 | cmdiocb = menlo->cmdiocbq; |
| 4935 | /* hint to completion handler that the job timed out */ |
| 4936 | job->reply->result = -EAGAIN; |
| 4937 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4938 | /* this will call our completion handler */ |
| 4939 | spin_lock_irq(&phba->hbalock); |
| 4940 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
| 4941 | spin_unlock_irq(&phba->hbalock); |
| 4942 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4943 | default: |
| 4944 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 4945 | break; |
| 4946 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4947 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 4948 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
| 4949 | * otherwise an error message will be displayed on the console |
| 4950 | * so always return success (zero) |
| 4951 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 4952 | return 0; |
| 4953 | } |