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 | f25e8e7 | 2015-04-07 15:07:28 -0400 | [diff] [blame] | 4 | * Copyright (C) 2009-2015 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 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 67 | /* driver data associated with the job */ |
| 68 | void *dd_data; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 69 | }; |
| 70 | |
| 71 | struct lpfc_bsg_iocb { |
| 72 | struct lpfc_iocbq *cmdiocbq; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 73 | struct lpfc_dmabuf *rmp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 74 | struct lpfc_nodelist *ndlp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 75 | }; |
| 76 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 77 | struct lpfc_bsg_mbox { |
| 78 | LPFC_MBOXQ_t *pmboxq; |
| 79 | MAILBOX_t *mb; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 80 | struct lpfc_dmabuf *dmabuffers; /* for BIU diags */ |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 81 | uint8_t *ext; /* extended mailbox data */ |
| 82 | uint32_t mbOffset; /* from app */ |
| 83 | uint32_t inExtWLen; /* from app */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 84 | uint32_t outExtWLen; /* from app */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 85 | }; |
| 86 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 87 | #define MENLO_DID 0x0000FC0E |
| 88 | |
| 89 | struct lpfc_bsg_menlo { |
| 90 | struct lpfc_iocbq *cmdiocbq; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 91 | struct lpfc_dmabuf *rmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 92 | }; |
| 93 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 94 | #define TYPE_EVT 1 |
| 95 | #define TYPE_IOCB 2 |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 96 | #define TYPE_MBOX 3 |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 97 | #define TYPE_MENLO 4 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 98 | struct bsg_job_data { |
| 99 | uint32_t type; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 100 | struct fc_bsg_job *set_job; /* job waiting for this iocb to finish */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 101 | union { |
| 102 | struct lpfc_bsg_event *evt; |
| 103 | struct lpfc_bsg_iocb iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 104 | struct lpfc_bsg_mbox mbox; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 105 | struct lpfc_bsg_menlo menlo; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 106 | } context_un; |
| 107 | }; |
| 108 | |
| 109 | struct event_data { |
| 110 | struct list_head node; |
| 111 | uint32_t type; |
| 112 | uint32_t immed_dat; |
| 113 | void *data; |
| 114 | uint32_t len; |
| 115 | }; |
| 116 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 117 | #define BUF_SZ_4K 4096 |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 118 | #define SLI_CT_ELX_LOOPBACK 0x10 |
| 119 | |
| 120 | enum ELX_LOOPBACK_CMD { |
| 121 | ELX_LOOPBACK_XRI_SETUP, |
| 122 | ELX_LOOPBACK_DATA, |
| 123 | }; |
| 124 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 125 | #define ELX_LOOPBACK_HEADER_SZ \ |
| 126 | (size_t)(&((struct lpfc_sli_ct_request *)NULL)->un) |
| 127 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 128 | struct lpfc_dmabufext { |
| 129 | struct lpfc_dmabuf dma; |
| 130 | uint32_t size; |
| 131 | uint32_t flag; |
| 132 | }; |
| 133 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 134 | static void |
| 135 | lpfc_free_bsg_buffers(struct lpfc_hba *phba, struct lpfc_dmabuf *mlist) |
| 136 | { |
| 137 | struct lpfc_dmabuf *mlast, *next_mlast; |
| 138 | |
| 139 | if (mlist) { |
| 140 | list_for_each_entry_safe(mlast, next_mlast, &mlist->list, |
| 141 | list) { |
| 142 | lpfc_mbuf_free(phba, mlast->virt, mlast->phys); |
| 143 | list_del(&mlast->list); |
| 144 | kfree(mlast); |
| 145 | } |
| 146 | lpfc_mbuf_free(phba, mlist->virt, mlist->phys); |
| 147 | kfree(mlist); |
| 148 | } |
| 149 | return; |
| 150 | } |
| 151 | |
| 152 | static struct lpfc_dmabuf * |
| 153 | lpfc_alloc_bsg_buffers(struct lpfc_hba *phba, unsigned int size, |
| 154 | int outbound_buffers, struct ulp_bde64 *bpl, |
| 155 | int *bpl_entries) |
| 156 | { |
| 157 | struct lpfc_dmabuf *mlist = NULL; |
| 158 | struct lpfc_dmabuf *mp; |
| 159 | unsigned int bytes_left = size; |
| 160 | |
| 161 | /* Verify we can support the size specified */ |
| 162 | if (!size || (size > (*bpl_entries * LPFC_BPL_SIZE))) |
| 163 | return NULL; |
| 164 | |
| 165 | /* Determine the number of dma buffers to allocate */ |
| 166 | *bpl_entries = (size % LPFC_BPL_SIZE ? size/LPFC_BPL_SIZE + 1 : |
| 167 | size/LPFC_BPL_SIZE); |
| 168 | |
| 169 | /* Allocate dma buffer and place in BPL passed */ |
| 170 | while (bytes_left) { |
| 171 | /* Allocate dma buffer */ |
| 172 | mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 173 | if (!mp) { |
| 174 | if (mlist) |
| 175 | lpfc_free_bsg_buffers(phba, mlist); |
| 176 | return NULL; |
| 177 | } |
| 178 | |
| 179 | INIT_LIST_HEAD(&mp->list); |
| 180 | mp->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &(mp->phys)); |
| 181 | |
| 182 | if (!mp->virt) { |
| 183 | kfree(mp); |
| 184 | if (mlist) |
| 185 | lpfc_free_bsg_buffers(phba, mlist); |
| 186 | return NULL; |
| 187 | } |
| 188 | |
| 189 | /* Queue it to a linked list */ |
| 190 | if (!mlist) |
| 191 | mlist = mp; |
| 192 | else |
| 193 | list_add_tail(&mp->list, &mlist->list); |
| 194 | |
| 195 | /* Add buffer to buffer pointer list */ |
| 196 | if (outbound_buffers) |
| 197 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; |
| 198 | else |
| 199 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 200 | bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys)); |
| 201 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys)); |
| 202 | bpl->tus.f.bdeSize = (uint16_t) |
| 203 | (bytes_left >= LPFC_BPL_SIZE ? LPFC_BPL_SIZE : |
| 204 | bytes_left); |
| 205 | bytes_left -= bpl->tus.f.bdeSize; |
| 206 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 207 | bpl++; |
| 208 | } |
| 209 | return mlist; |
| 210 | } |
| 211 | |
| 212 | static unsigned int |
| 213 | lpfc_bsg_copy_data(struct lpfc_dmabuf *dma_buffers, |
| 214 | struct fc_bsg_buffer *bsg_buffers, |
| 215 | unsigned int bytes_to_transfer, int to_buffers) |
| 216 | { |
| 217 | |
| 218 | struct lpfc_dmabuf *mp; |
| 219 | unsigned int transfer_bytes, bytes_copied = 0; |
| 220 | unsigned int sg_offset, dma_offset; |
| 221 | unsigned char *dma_address, *sg_address; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 222 | LIST_HEAD(temp_list); |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 223 | struct sg_mapping_iter miter; |
| 224 | unsigned long flags; |
| 225 | unsigned int sg_flags = SG_MITER_ATOMIC; |
| 226 | bool sg_valid; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 227 | |
| 228 | list_splice_init(&dma_buffers->list, &temp_list); |
| 229 | list_add(&dma_buffers->list, &temp_list); |
| 230 | sg_offset = 0; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 231 | if (to_buffers) |
| 232 | sg_flags |= SG_MITER_FROM_SG; |
| 233 | else |
| 234 | sg_flags |= SG_MITER_TO_SG; |
| 235 | sg_miter_start(&miter, bsg_buffers->sg_list, bsg_buffers->sg_cnt, |
| 236 | sg_flags); |
| 237 | local_irq_save(flags); |
| 238 | sg_valid = sg_miter_next(&miter); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 239 | list_for_each_entry(mp, &temp_list, list) { |
| 240 | dma_offset = 0; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 241 | while (bytes_to_transfer && sg_valid && |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 242 | (dma_offset < LPFC_BPL_SIZE)) { |
| 243 | dma_address = mp->virt + dma_offset; |
| 244 | if (sg_offset) { |
| 245 | /* Continue previous partial transfer of sg */ |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 246 | sg_address = miter.addr + sg_offset; |
| 247 | transfer_bytes = miter.length - sg_offset; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 248 | } else { |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 249 | sg_address = miter.addr; |
| 250 | transfer_bytes = miter.length; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 251 | } |
| 252 | if (bytes_to_transfer < transfer_bytes) |
| 253 | transfer_bytes = bytes_to_transfer; |
| 254 | if (transfer_bytes > (LPFC_BPL_SIZE - dma_offset)) |
| 255 | transfer_bytes = LPFC_BPL_SIZE - dma_offset; |
| 256 | if (to_buffers) |
| 257 | memcpy(dma_address, sg_address, transfer_bytes); |
| 258 | else |
| 259 | memcpy(sg_address, dma_address, transfer_bytes); |
| 260 | dma_offset += transfer_bytes; |
| 261 | sg_offset += transfer_bytes; |
| 262 | bytes_to_transfer -= transfer_bytes; |
| 263 | bytes_copied += transfer_bytes; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 264 | if (sg_offset >= miter.length) { |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 265 | sg_offset = 0; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 266 | sg_valid = sg_miter_next(&miter); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 267 | } |
| 268 | } |
| 269 | } |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 270 | sg_miter_stop(&miter); |
| 271 | local_irq_restore(flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 272 | list_del_init(&dma_buffers->list); |
| 273 | list_splice(&temp_list, &dma_buffers->list); |
| 274 | return bytes_copied; |
| 275 | } |
| 276 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 277 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 278 | * lpfc_bsg_send_mgmt_cmd_cmp - lpfc_bsg_send_mgmt_cmd's completion handler |
| 279 | * @phba: Pointer to HBA context object. |
| 280 | * @cmdiocbq: Pointer to command iocb. |
| 281 | * @rspiocbq: Pointer to response iocb. |
| 282 | * |
| 283 | * This function is the completion handler for iocbs issued using |
| 284 | * lpfc_bsg_send_mgmt_cmd function. This function is called by the |
| 285 | * ring event handler function without any lock held. This function |
| 286 | * can be called from both worker thread context and interrupt |
| 287 | * context. This function also can be called from another thread which |
| 288 | * cleans up the SLI layer objects. |
| 289 | * This function copies the contents of the response iocb to the |
| 290 | * response iocb memory object provided by the caller of |
| 291 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 292 | * sleeps for the iocb completion. |
| 293 | **/ |
| 294 | static void |
| 295 | lpfc_bsg_send_mgmt_cmd_cmp(struct lpfc_hba *phba, |
| 296 | struct lpfc_iocbq *cmdiocbq, |
| 297 | struct lpfc_iocbq *rspiocbq) |
| 298 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 299 | struct bsg_job_data *dd_data; |
| 300 | struct fc_bsg_job *job; |
| 301 | IOCB_t *rsp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 302 | struct lpfc_dmabuf *bmp, *cmp, *rmp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 303 | struct lpfc_nodelist *ndlp; |
| 304 | struct lpfc_bsg_iocb *iocb; |
| 305 | unsigned long flags; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 306 | unsigned int rsp_size; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 307 | int rc = 0; |
| 308 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 309 | dd_data = cmdiocbq->context1; |
| 310 | |
| 311 | /* Determine if job has been aborted */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 312 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 313 | job = dd_data->set_job; |
| 314 | if (job) { |
| 315 | /* Prevent timeout handling from trying to abort job */ |
| 316 | job->dd_data = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 317 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 318 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 319 | |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 320 | /* Close the timeout handler abort window */ |
| 321 | spin_lock_irqsave(&phba->hbalock, flags); |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 322 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 323 | spin_unlock_irqrestore(&phba->hbalock, flags); |
| 324 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 325 | iocb = &dd_data->context_un.iocb; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 326 | ndlp = iocb->ndlp; |
| 327 | rmp = iocb->rmp; |
| 328 | cmp = cmdiocbq->context2; |
| 329 | bmp = cmdiocbq->context3; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 330 | rsp = &rspiocbq->iocb; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 331 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 332 | /* Copy the completed data or set the error status */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 333 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 334 | if (job) { |
| 335 | if (rsp->ulpStatus) { |
| 336 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 337 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { |
| 338 | case IOERR_SEQUENCE_TIMEOUT: |
| 339 | rc = -ETIMEDOUT; |
| 340 | break; |
| 341 | case IOERR_INVALID_RPI: |
| 342 | rc = -EFAULT; |
| 343 | break; |
| 344 | default: |
| 345 | rc = -EACCES; |
| 346 | break; |
| 347 | } |
| 348 | } else { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 349 | rc = -EACCES; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 350 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 351 | } else { |
| 352 | rsp_size = rsp->un.genreq64.bdl.bdeSize; |
| 353 | job->reply->reply_payload_rcv_len = |
| 354 | lpfc_bsg_copy_data(rmp, &job->reply_payload, |
| 355 | rsp_size, 0); |
| 356 | } |
| 357 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 358 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 359 | lpfc_free_bsg_buffers(phba, cmp); |
| 360 | lpfc_free_bsg_buffers(phba, rmp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 361 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 362 | kfree(bmp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 363 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 364 | lpfc_nlp_put(ndlp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 365 | kfree(dd_data); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 366 | |
| 367 | /* Complete the job if the job is still active */ |
| 368 | |
| 369 | if (job) { |
| 370 | job->reply->result = rc; |
| 371 | job->job_done(job); |
| 372 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 373 | return; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * 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] | 378 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 379 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 380 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 381 | lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 382 | { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 383 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 384 | struct lpfc_hba *phba = vport->phba; |
| 385 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 386 | struct lpfc_nodelist *ndlp = rdata->pnode; |
| 387 | struct ulp_bde64 *bpl = NULL; |
| 388 | uint32_t timeout; |
| 389 | struct lpfc_iocbq *cmdiocbq = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 390 | IOCB_t *cmd; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 391 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 392 | int request_nseg; |
| 393 | int reply_nseg; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 394 | struct bsg_job_data *dd_data; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 395 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 396 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 397 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 398 | int iocb_stat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 399 | |
| 400 | /* in case no data is transferred */ |
| 401 | job->reply->reply_payload_rcv_len = 0; |
| 402 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 403 | /* allocate our bsg tracking structure */ |
| 404 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 405 | if (!dd_data) { |
| 406 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 407 | "2733 Failed allocation of dd_data\n"); |
| 408 | rc = -ENOMEM; |
| 409 | goto no_dd_data; |
| 410 | } |
| 411 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 412 | if (!lpfc_nlp_get(ndlp)) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 413 | rc = -ENODEV; |
| 414 | goto no_ndlp; |
| 415 | } |
| 416 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 417 | if (ndlp->nlp_flag & NLP_ELS_SND_MASK) { |
| 418 | rc = -ENODEV; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 419 | goto free_ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 420 | } |
| 421 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 422 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 423 | if (!cmdiocbq) { |
| 424 | rc = -ENOMEM; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 425 | goto free_ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 426 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 427 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 428 | cmd = &cmdiocbq->iocb; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 429 | |
| 430 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 431 | if (!bmp) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 432 | rc = -ENOMEM; |
James Smart | be858b6 | 2010-12-15 17:57:20 -0500 | [diff] [blame] | 433 | goto free_cmdiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 434 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 435 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 436 | if (!bmp->virt) { |
| 437 | rc = -ENOMEM; |
| 438 | goto free_bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 439 | } |
| 440 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 441 | INIT_LIST_HEAD(&bmp->list); |
| 442 | |
| 443 | bpl = (struct ulp_bde64 *) bmp->virt; |
| 444 | request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64); |
| 445 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, |
| 446 | 1, bpl, &request_nseg); |
| 447 | if (!cmp) { |
| 448 | rc = -ENOMEM; |
| 449 | goto free_bmp; |
| 450 | } |
| 451 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
| 452 | job->request_payload.payload_len, 1); |
| 453 | |
| 454 | bpl += request_nseg; |
| 455 | reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg; |
| 456 | rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0, |
| 457 | bpl, &reply_nseg); |
| 458 | if (!rmp) { |
| 459 | rc = -ENOMEM; |
| 460 | goto free_cmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 464 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 465 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 466 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 467 | cmd->un.genreq64.bdl.bdeSize = |
| 468 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 469 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 470 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 471 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
James Smart | 6a9c52c | 2009-10-02 15:16:51 -0400 | [diff] [blame] | 472 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 473 | cmd->un.genreq64.w5.hcsw.Type = FC_TYPE_CT; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 474 | cmd->ulpBdeCount = 1; |
| 475 | cmd->ulpLe = 1; |
| 476 | cmd->ulpClass = CLASS3; |
| 477 | cmd->ulpContext = ndlp->nlp_rpi; |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame] | 478 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 479 | cmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 480 | cmd->ulpOwner = OWN_CHIP; |
| 481 | cmdiocbq->vport = phba->pport; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 482 | cmdiocbq->context3 = bmp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 483 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 484 | timeout = phba->fc_ratov * 2; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 485 | cmd->ulpTimeout = timeout; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 486 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 487 | cmdiocbq->iocb_cmpl = lpfc_bsg_send_mgmt_cmd_cmp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 488 | cmdiocbq->context1 = dd_data; |
| 489 | cmdiocbq->context2 = cmp; |
| 490 | cmdiocbq->context3 = bmp; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 491 | cmdiocbq->context_un.ndlp = ndlp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 492 | dd_data->type = TYPE_IOCB; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 493 | dd_data->set_job = job; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 494 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 495 | dd_data->context_un.iocb.ndlp = ndlp; |
| 496 | dd_data->context_un.iocb.rmp = rmp; |
| 497 | job->dd_data = dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 498 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 499 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 500 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 501 | rc = -EIO ; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 502 | goto free_rmp; |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 503 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 504 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 505 | writel(creg_val, phba->HCregaddr); |
| 506 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 507 | } |
| 508 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 509 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 510 | |
| 511 | if (iocb_stat == IOCB_SUCCESS) { |
| 512 | spin_lock_irqsave(&phba->hbalock, flags); |
| 513 | /* make sure the I/O had not been completed yet */ |
| 514 | if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) { |
| 515 | /* open up abort window to timeout handler */ |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 516 | cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 517 | } |
| 518 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 519 | return 0; /* done for now */ |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 520 | } else if (iocb_stat == IOCB_BUSY) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 521 | rc = -EAGAIN; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 522 | } else { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 523 | rc = -EIO; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 524 | } |
James Smart | 2a9bf3d | 2010-06-07 15:24:45 -0400 | [diff] [blame] | 525 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 526 | /* iocb failed so cleanup */ |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 527 | job->dd_data = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 528 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 529 | free_rmp: |
| 530 | lpfc_free_bsg_buffers(phba, rmp); |
| 531 | free_cmp: |
| 532 | lpfc_free_bsg_buffers(phba, cmp); |
| 533 | free_bmp: |
| 534 | if (bmp->virt) |
| 535 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
| 536 | kfree(bmp); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 537 | free_cmdiocbq: |
| 538 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 539 | free_ndlp: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 540 | lpfc_nlp_put(ndlp); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 541 | no_ndlp: |
| 542 | kfree(dd_data); |
| 543 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 544 | /* make error code available to userspace */ |
| 545 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 546 | job->dd_data = NULL; |
| 547 | return rc; |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * lpfc_bsg_rport_els_cmp - lpfc_bsg_rport_els's completion handler |
| 552 | * @phba: Pointer to HBA context object. |
| 553 | * @cmdiocbq: Pointer to command iocb. |
| 554 | * @rspiocbq: Pointer to response iocb. |
| 555 | * |
| 556 | * This function is the completion handler for iocbs issued using |
| 557 | * lpfc_bsg_rport_els_cmp function. This function is called by the |
| 558 | * ring event handler function without any lock held. This function |
| 559 | * can be called from both worker thread context and interrupt |
| 560 | * context. This function also can be called from other thread which |
| 561 | * cleans up the SLI layer objects. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 562 | * This function copies the contents of the response iocb to the |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 563 | * response iocb memory object provided by the caller of |
| 564 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 565 | * sleeps for the iocb completion. |
| 566 | **/ |
| 567 | static void |
| 568 | lpfc_bsg_rport_els_cmp(struct lpfc_hba *phba, |
| 569 | struct lpfc_iocbq *cmdiocbq, |
| 570 | struct lpfc_iocbq *rspiocbq) |
| 571 | { |
| 572 | struct bsg_job_data *dd_data; |
| 573 | struct fc_bsg_job *job; |
| 574 | IOCB_t *rsp; |
| 575 | struct lpfc_nodelist *ndlp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 576 | struct lpfc_dmabuf *pcmd = NULL, *prsp = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 577 | struct fc_bsg_ctels_reply *els_reply; |
| 578 | uint8_t *rjt_data; |
| 579 | unsigned long flags; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 580 | unsigned int rsp_size; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 581 | int rc = 0; |
| 582 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 583 | dd_data = cmdiocbq->context1; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 584 | ndlp = dd_data->context_un.iocb.ndlp; |
| 585 | cmdiocbq->context1 = ndlp; |
| 586 | |
| 587 | /* Determine if job has been aborted */ |
| 588 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 589 | job = dd_data->set_job; |
| 590 | if (job) { |
| 591 | /* Prevent timeout handling from trying to abort job */ |
| 592 | job->dd_data = NULL; |
| 593 | } |
| 594 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 595 | |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 596 | /* Close the timeout handler abort window */ |
| 597 | spin_lock_irqsave(&phba->hbalock, flags); |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 598 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 599 | spin_unlock_irqrestore(&phba->hbalock, flags); |
| 600 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 601 | rsp = &rspiocbq->iocb; |
| 602 | pcmd = (struct lpfc_dmabuf *)cmdiocbq->context2; |
| 603 | prsp = (struct lpfc_dmabuf *)pcmd->list.next; |
| 604 | |
| 605 | /* Copy the completed job data or determine the job status if job is |
| 606 | * still active |
| 607 | */ |
| 608 | |
| 609 | if (job) { |
| 610 | if (rsp->ulpStatus == IOSTAT_SUCCESS) { |
| 611 | rsp_size = rsp->un.elsreq64.bdl.bdeSize; |
| 612 | job->reply->reply_payload_rcv_len = |
| 613 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 614 | job->reply_payload.sg_cnt, |
| 615 | prsp->virt, |
| 616 | rsp_size); |
| 617 | } else if (rsp->ulpStatus == IOSTAT_LS_RJT) { |
| 618 | job->reply->reply_payload_rcv_len = |
| 619 | sizeof(struct fc_bsg_ctels_reply); |
| 620 | /* LS_RJT data returned in word 4 */ |
| 621 | rjt_data = (uint8_t *)&rsp->un.ulpWord[4]; |
| 622 | els_reply = &job->reply->reply_data.ctels_reply; |
| 623 | els_reply->status = FC_CTELS_STATUS_REJECT; |
| 624 | els_reply->rjt_data.action = rjt_data[3]; |
| 625 | els_reply->rjt_data.reason_code = rjt_data[2]; |
| 626 | els_reply->rjt_data.reason_explanation = rjt_data[1]; |
| 627 | els_reply->rjt_data.vendor_unique = rjt_data[0]; |
| 628 | } else { |
| 629 | rc = -EIO; |
| 630 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 631 | } |
| 632 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 633 | lpfc_nlp_put(ndlp); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 634 | lpfc_els_free_iocb(phba, cmdiocbq); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 635 | kfree(dd_data); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 636 | |
| 637 | /* Complete the job if the job is still active */ |
| 638 | |
| 639 | if (job) { |
| 640 | job->reply->result = rc; |
| 641 | job->job_done(job); |
| 642 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 643 | return; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | /** |
| 647 | * lpfc_bsg_rport_els - send an ELS command from a bsg request |
| 648 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 649 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 650 | static int |
| 651 | lpfc_bsg_rport_els(struct fc_bsg_job *job) |
| 652 | { |
| 653 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 654 | struct lpfc_hba *phba = vport->phba; |
| 655 | struct lpfc_rport_data *rdata = job->rport->dd_data; |
| 656 | struct lpfc_nodelist *ndlp = rdata->pnode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 657 | uint32_t elscmd; |
| 658 | uint32_t cmdsize; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 659 | struct lpfc_iocbq *cmdiocbq; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 660 | uint16_t rpi = 0; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 661 | struct bsg_job_data *dd_data; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 662 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 663 | uint32_t creg_val; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 664 | int rc = 0; |
| 665 | |
| 666 | /* in case no data is transferred */ |
| 667 | job->reply->reply_payload_rcv_len = 0; |
| 668 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 669 | /* verify the els command is not greater than the |
| 670 | * maximum ELS transfer size. |
| 671 | */ |
| 672 | |
| 673 | if (job->request_payload.payload_len > FCELSSIZE) { |
| 674 | rc = -EINVAL; |
| 675 | goto no_dd_data; |
| 676 | } |
| 677 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 678 | /* allocate our bsg tracking structure */ |
| 679 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 680 | if (!dd_data) { |
| 681 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 682 | "2735 Failed allocation of dd_data\n"); |
| 683 | rc = -ENOMEM; |
| 684 | goto no_dd_data; |
| 685 | } |
| 686 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 687 | elscmd = job->request->rqst_data.r_els.els_code; |
| 688 | cmdsize = job->request_payload.payload_len; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 689 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 690 | if (!lpfc_nlp_get(ndlp)) { |
| 691 | rc = -ENODEV; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 692 | goto free_dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 693 | } |
| 694 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 695 | /* We will use the allocated dma buffers by prep els iocb for command |
| 696 | * and response to ensure if the job times out and the request is freed, |
| 697 | * we won't be dma into memory that is no longer allocated to for the |
| 698 | * request. |
| 699 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 700 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 701 | cmdiocbq = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 702 | ndlp->nlp_DID, elscmd); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 703 | if (!cmdiocbq) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 704 | rc = -EIO; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 705 | goto release_ndlp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 706 | } |
| 707 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 708 | rpi = ndlp->nlp_rpi; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 709 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 710 | /* Transfer the request payload to allocated command dma buffer */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 711 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 712 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 713 | job->request_payload.sg_cnt, |
| 714 | ((struct lpfc_dmabuf *)cmdiocbq->context2)->virt, |
| 715 | cmdsize); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 716 | |
James Smart | 3ef6d24 | 2012-01-18 16:23:48 -0500 | [diff] [blame] | 717 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 718 | cmdiocbq->iocb.ulpContext = phba->sli4_hba.rpi_ids[rpi]; |
| 719 | else |
| 720 | cmdiocbq->iocb.ulpContext = rpi; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 721 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 722 | cmdiocbq->context1 = dd_data; |
James Smart | 93d1379e | 2012-05-09 21:19:34 -0400 | [diff] [blame] | 723 | cmdiocbq->context_un.ndlp = ndlp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 724 | cmdiocbq->iocb_cmpl = lpfc_bsg_rport_els_cmp; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 725 | dd_data->type = TYPE_IOCB; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 726 | dd_data->set_job = job; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 727 | dd_data->context_un.iocb.cmdiocbq = cmdiocbq; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 728 | dd_data->context_un.iocb.ndlp = ndlp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 729 | dd_data->context_un.iocb.rmp = NULL; |
| 730 | job->dd_data = dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 731 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 732 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 733 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 734 | rc = -EIO; |
| 735 | goto linkdown_err; |
| 736 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 737 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 738 | writel(creg_val, phba->HCregaddr); |
| 739 | readl(phba->HCregaddr); /* flush */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 740 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 741 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 742 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, 0); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 743 | |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 744 | if (rc == IOCB_SUCCESS) { |
| 745 | spin_lock_irqsave(&phba->hbalock, flags); |
| 746 | /* make sure the I/O had not been completed/released */ |
| 747 | if (cmdiocbq->iocb_flag & LPFC_IO_LIBDFC) { |
| 748 | /* open up abort window to timeout handler */ |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 749 | cmdiocbq->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 750 | } |
| 751 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 752 | return 0; /* done for now */ |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 753 | } else if (rc == IOCB_BUSY) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 754 | rc = -EAGAIN; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 755 | } else { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 756 | rc = -EIO; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 757 | } |
| 758 | |
| 759 | /* iocb failed so cleanup */ |
| 760 | job->dd_data = NULL; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 761 | |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 762 | linkdown_err: |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 763 | cmdiocbq->context1 = ndlp; |
| 764 | lpfc_els_free_iocb(phba, cmdiocbq); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 765 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 766 | release_ndlp: |
| 767 | lpfc_nlp_put(ndlp); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 768 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 769 | free_dd_data: |
| 770 | kfree(dd_data); |
| 771 | |
| 772 | no_dd_data: |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 773 | /* make error code available to userspace */ |
| 774 | job->reply->result = rc; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 775 | job->dd_data = NULL; |
| 776 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 777 | } |
| 778 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 779 | /** |
| 780 | * lpfc_bsg_event_free - frees an allocated event structure |
| 781 | * @kref: Pointer to a kref. |
| 782 | * |
| 783 | * Called from kref_put. Back cast the kref into an event structure address. |
| 784 | * Free any events to get, delete associated nodes, free any events to see, |
| 785 | * free any data then free the event itself. |
| 786 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 787 | static void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 788 | lpfc_bsg_event_free(struct kref *kref) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 789 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 790 | struct lpfc_bsg_event *evt = container_of(kref, struct lpfc_bsg_event, |
| 791 | kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 792 | struct event_data *ed; |
| 793 | |
| 794 | list_del(&evt->node); |
| 795 | |
| 796 | while (!list_empty(&evt->events_to_get)) { |
| 797 | ed = list_entry(evt->events_to_get.next, typeof(*ed), node); |
| 798 | list_del(&ed->node); |
| 799 | kfree(ed->data); |
| 800 | kfree(ed); |
| 801 | } |
| 802 | |
| 803 | while (!list_empty(&evt->events_to_see)) { |
| 804 | ed = list_entry(evt->events_to_see.next, typeof(*ed), node); |
| 805 | list_del(&ed->node); |
| 806 | kfree(ed->data); |
| 807 | kfree(ed); |
| 808 | } |
| 809 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 810 | kfree(evt->dd_data); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 811 | kfree(evt); |
| 812 | } |
| 813 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 814 | /** |
| 815 | * lpfc_bsg_event_ref - increments the kref for an event |
| 816 | * @evt: Pointer to an event structure. |
| 817 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 818 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 819 | lpfc_bsg_event_ref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 820 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 821 | kref_get(&evt->kref); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 822 | } |
| 823 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 824 | /** |
| 825 | * lpfc_bsg_event_unref - Uses kref_put to free an event structure |
| 826 | * @evt: Pointer to an event structure. |
| 827 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 828 | static inline void |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 829 | lpfc_bsg_event_unref(struct lpfc_bsg_event *evt) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 830 | { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 831 | kref_put(&evt->kref, lpfc_bsg_event_free); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 832 | } |
| 833 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 834 | /** |
| 835 | * lpfc_bsg_event_new - allocate and initialize a event structure |
| 836 | * @ev_mask: Mask of events. |
| 837 | * @ev_reg_id: Event reg id. |
| 838 | * @ev_req_id: Event request id. |
| 839 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 840 | static struct lpfc_bsg_event * |
| 841 | lpfc_bsg_event_new(uint32_t ev_mask, int ev_reg_id, uint32_t ev_req_id) |
| 842 | { |
| 843 | struct lpfc_bsg_event *evt = kzalloc(sizeof(*evt), GFP_KERNEL); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 844 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 845 | if (!evt) |
| 846 | return NULL; |
| 847 | |
| 848 | INIT_LIST_HEAD(&evt->events_to_get); |
| 849 | INIT_LIST_HEAD(&evt->events_to_see); |
| 850 | evt->type_mask = ev_mask; |
| 851 | evt->req_id = ev_req_id; |
| 852 | evt->reg_id = ev_reg_id; |
| 853 | evt->wait_time_stamp = jiffies; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 854 | evt->dd_data = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 855 | init_waitqueue_head(&evt->wq); |
| 856 | kref_init(&evt->kref); |
| 857 | return evt; |
| 858 | } |
| 859 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 860 | /** |
| 861 | * diag_cmd_data_free - Frees an lpfc dma buffer extension |
| 862 | * @phba: Pointer to HBA context object. |
| 863 | * @mlist: Pointer to an lpfc dma buffer extension. |
| 864 | **/ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 865 | static int |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 866 | diag_cmd_data_free(struct lpfc_hba *phba, struct lpfc_dmabufext *mlist) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 867 | { |
| 868 | struct lpfc_dmabufext *mlast; |
| 869 | struct pci_dev *pcidev; |
| 870 | struct list_head head, *curr, *next; |
| 871 | |
| 872 | if ((!mlist) || (!lpfc_is_link_up(phba) && |
| 873 | (phba->link_flag & LS_LOOPBACK_MODE))) { |
| 874 | return 0; |
| 875 | } |
| 876 | |
| 877 | pcidev = phba->pcidev; |
| 878 | list_add_tail(&head, &mlist->dma.list); |
| 879 | |
| 880 | list_for_each_safe(curr, next, &head) { |
| 881 | mlast = list_entry(curr, struct lpfc_dmabufext , dma.list); |
| 882 | if (mlast->dma.virt) |
| 883 | dma_free_coherent(&pcidev->dev, |
| 884 | mlast->size, |
| 885 | mlast->dma.virt, |
| 886 | mlast->dma.phys); |
| 887 | kfree(mlast); |
| 888 | } |
| 889 | return 0; |
| 890 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 891 | |
| 892 | /** |
| 893 | * lpfc_bsg_ct_unsol_event - process an unsolicited CT command |
| 894 | * @phba: |
| 895 | * @pring: |
| 896 | * @piocbq: |
| 897 | * |
| 898 | * This function is called when an unsolicited CT command is received. It |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 899 | * forwards the event to any processes registered to receive CT events. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 900 | **/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 901 | int |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 902 | lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 903 | struct lpfc_iocbq *piocbq) |
| 904 | { |
| 905 | uint32_t evt_req_id = 0; |
| 906 | uint32_t cmd; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 907 | struct lpfc_dmabuf *dmabuf = NULL; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 908 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 909 | struct event_data *evt_dat = NULL; |
| 910 | struct lpfc_iocbq *iocbq; |
| 911 | size_t offset = 0; |
| 912 | struct list_head head; |
| 913 | struct ulp_bde64 *bde; |
| 914 | dma_addr_t dma_addr; |
| 915 | int i; |
| 916 | struct lpfc_dmabuf *bdeBuf1 = piocbq->context2; |
| 917 | struct lpfc_dmabuf *bdeBuf2 = piocbq->context3; |
| 918 | struct lpfc_hbq_entry *hbqe; |
| 919 | struct lpfc_sli_ct_request *ct_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 920 | struct fc_bsg_job *job = NULL; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 921 | struct bsg_job_data *dd_data = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 922 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 923 | int size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 924 | |
| 925 | INIT_LIST_HEAD(&head); |
| 926 | list_add_tail(&head, &piocbq->list); |
| 927 | |
| 928 | if (piocbq->iocb.ulpBdeCount == 0 || |
| 929 | piocbq->iocb.un.cont64[0].tus.f.bdeSize == 0) |
| 930 | goto error_ct_unsol_exit; |
| 931 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 932 | if (phba->link_state == LPFC_HBA_ERROR || |
| 933 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) |
| 934 | goto error_ct_unsol_exit; |
| 935 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 936 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) |
| 937 | dmabuf = bdeBuf1; |
| 938 | else { |
| 939 | dma_addr = getPaddr(piocbq->iocb.un.cont64[0].addrHigh, |
| 940 | piocbq->iocb.un.cont64[0].addrLow); |
| 941 | dmabuf = lpfc_sli_ringpostbuf_get(phba, pring, dma_addr); |
| 942 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 943 | if (dmabuf == NULL) |
| 944 | goto error_ct_unsol_exit; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 945 | ct_req = (struct lpfc_sli_ct_request *)dmabuf->virt; |
| 946 | evt_req_id = ct_req->FsType; |
| 947 | cmd = ct_req->CommandResponse.bits.CmdRsp; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 948 | if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) |
| 949 | lpfc_sli_ringpostbuf_put(phba, pring, dmabuf); |
| 950 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 951 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 952 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 953 | if (!(evt->type_mask & FC_REG_CT_EVENT) || |
| 954 | evt->req_id != evt_req_id) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 955 | continue; |
| 956 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 957 | lpfc_bsg_event_ref(evt); |
| 958 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 959 | evt_dat = kzalloc(sizeof(*evt_dat), GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 960 | if (evt_dat == NULL) { |
| 961 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 962 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 963 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 964 | "2614 Memory allocation failed for " |
| 965 | "CT event\n"); |
| 966 | break; |
| 967 | } |
| 968 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 969 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 970 | /* take accumulated byte count from the last iocbq */ |
| 971 | iocbq = list_entry(head.prev, typeof(*iocbq), list); |
| 972 | evt_dat->len = iocbq->iocb.unsli3.rcvsli3.acc_len; |
| 973 | } else { |
| 974 | list_for_each_entry(iocbq, &head, list) { |
| 975 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) |
| 976 | evt_dat->len += |
| 977 | iocbq->iocb.un.cont64[i].tus.f.bdeSize; |
| 978 | } |
| 979 | } |
| 980 | |
| 981 | evt_dat->data = kzalloc(evt_dat->len, GFP_KERNEL); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 982 | if (evt_dat->data == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 983 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 984 | "2615 Memory allocation failed for " |
| 985 | "CT event data, size %d\n", |
| 986 | evt_dat->len); |
| 987 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 988 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 989 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 990 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 991 | goto error_ct_unsol_exit; |
| 992 | } |
| 993 | |
| 994 | list_for_each_entry(iocbq, &head, list) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 995 | size = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 996 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 997 | bdeBuf1 = iocbq->context2; |
| 998 | bdeBuf2 = iocbq->context3; |
| 999 | } |
| 1000 | for (i = 0; i < iocbq->iocb.ulpBdeCount; i++) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1001 | if (phba->sli3_options & |
| 1002 | LPFC_SLI3_HBQ_ENABLED) { |
| 1003 | if (i == 0) { |
| 1004 | hbqe = (struct lpfc_hbq_entry *) |
| 1005 | &iocbq->iocb.un.ulpWord[0]; |
| 1006 | size = hbqe->bde.tus.f.bdeSize; |
| 1007 | dmabuf = bdeBuf1; |
| 1008 | } else if (i == 1) { |
| 1009 | hbqe = (struct lpfc_hbq_entry *) |
| 1010 | &iocbq->iocb.unsli3. |
| 1011 | sli3Words[4]; |
| 1012 | size = hbqe->bde.tus.f.bdeSize; |
| 1013 | dmabuf = bdeBuf2; |
| 1014 | } |
| 1015 | if ((offset + size) > evt_dat->len) |
| 1016 | size = evt_dat->len - offset; |
| 1017 | } else { |
| 1018 | size = iocbq->iocb.un.cont64[i]. |
| 1019 | tus.f.bdeSize; |
| 1020 | bde = &iocbq->iocb.un.cont64[i]; |
| 1021 | dma_addr = getPaddr(bde->addrHigh, |
| 1022 | bde->addrLow); |
| 1023 | dmabuf = lpfc_sli_ringpostbuf_get(phba, |
| 1024 | pring, dma_addr); |
| 1025 | } |
| 1026 | if (!dmabuf) { |
| 1027 | lpfc_printf_log(phba, KERN_ERR, |
| 1028 | LOG_LIBDFC, "2616 No dmabuf " |
| 1029 | "found for iocbq 0x%p\n", |
| 1030 | iocbq); |
| 1031 | kfree(evt_dat->data); |
| 1032 | kfree(evt_dat); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1033 | spin_lock_irqsave(&phba->ct_ev_lock, |
| 1034 | flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1035 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1036 | spin_unlock_irqrestore( |
| 1037 | &phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1038 | goto error_ct_unsol_exit; |
| 1039 | } |
| 1040 | memcpy((char *)(evt_dat->data) + offset, |
| 1041 | dmabuf->virt, size); |
| 1042 | offset += size; |
| 1043 | if (evt_req_id != SLI_CT_ELX_LOOPBACK && |
| 1044 | !(phba->sli3_options & |
| 1045 | LPFC_SLI3_HBQ_ENABLED)) { |
| 1046 | lpfc_sli_ringpostbuf_put(phba, pring, |
| 1047 | dmabuf); |
| 1048 | } else { |
| 1049 | switch (cmd) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1050 | case ELX_LOOPBACK_DATA: |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1051 | if (phba->sli_rev < |
| 1052 | LPFC_SLI_REV4) |
| 1053 | diag_cmd_data_free(phba, |
| 1054 | (struct lpfc_dmabufext |
| 1055 | *)dmabuf); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1056 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1057 | case ELX_LOOPBACK_XRI_SETUP: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1058 | if ((phba->sli_rev == |
| 1059 | LPFC_SLI_REV2) || |
| 1060 | (phba->sli3_options & |
| 1061 | LPFC_SLI3_HBQ_ENABLED |
| 1062 | )) { |
| 1063 | lpfc_in_buf_free(phba, |
| 1064 | dmabuf); |
| 1065 | } else { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1066 | lpfc_post_buffer(phba, |
| 1067 | pring, |
| 1068 | 1); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1069 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1070 | break; |
| 1071 | default: |
| 1072 | if (!(phba->sli3_options & |
| 1073 | LPFC_SLI3_HBQ_ENABLED)) |
| 1074 | lpfc_post_buffer(phba, |
| 1075 | pring, |
| 1076 | 1); |
| 1077 | break; |
| 1078 | } |
| 1079 | } |
| 1080 | } |
| 1081 | } |
| 1082 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1083 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1084 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 1085 | evt_dat->immed_dat = phba->ctx_idx; |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1086 | phba->ctx_idx = (phba->ctx_idx + 1) % LPFC_CT_CTX_MAX; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1087 | /* Provide warning for over-run of the ct_ctx array */ |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1088 | if (phba->ct_ctx[evt_dat->immed_dat].valid == |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1089 | UNSOL_VALID) |
| 1090 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 1091 | "2717 CT context array entry " |
| 1092 | "[%d] over-run: oxid:x%x, " |
| 1093 | "sid:x%x\n", phba->ctx_idx, |
| 1094 | phba->ct_ctx[ |
| 1095 | evt_dat->immed_dat].oxid, |
| 1096 | phba->ct_ctx[ |
| 1097 | evt_dat->immed_dat].SID); |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1098 | phba->ct_ctx[evt_dat->immed_dat].rxid = |
| 1099 | piocbq->iocb.ulpContext; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1100 | phba->ct_ctx[evt_dat->immed_dat].oxid = |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1101 | piocbq->iocb.unsli3.rcvsli3.ox_id; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1102 | phba->ct_ctx[evt_dat->immed_dat].SID = |
| 1103 | piocbq->iocb.un.rcvels.remoteID; |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1104 | phba->ct_ctx[evt_dat->immed_dat].valid = UNSOL_VALID; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1105 | } else |
| 1106 | evt_dat->immed_dat = piocbq->iocb.ulpContext; |
| 1107 | |
| 1108 | evt_dat->type = FC_REG_CT_EVENT; |
| 1109 | list_add(&evt_dat->node, &evt->events_to_see); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1110 | if (evt_req_id == SLI_CT_ELX_LOOPBACK) { |
| 1111 | wake_up_interruptible(&evt->wq); |
| 1112 | lpfc_bsg_event_unref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1113 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1114 | } |
| 1115 | |
| 1116 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1117 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1118 | dd_data = (struct bsg_job_data *)evt->dd_data; |
| 1119 | job = dd_data->set_job; |
| 1120 | dd_data->set_job = NULL; |
| 1121 | lpfc_bsg_event_unref(evt); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1122 | if (job) { |
| 1123 | job->reply->reply_payload_rcv_len = size; |
| 1124 | /* make error code available to userspace */ |
| 1125 | job->reply->result = 0; |
| 1126 | job->dd_data = NULL; |
| 1127 | /* complete the job back to userspace */ |
| 1128 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1129 | job->job_done(job); |
| 1130 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 1131 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1132 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1133 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1134 | |
| 1135 | error_ct_unsol_exit: |
| 1136 | if (!list_empty(&head)) |
| 1137 | list_del(&head); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1138 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
| 1139 | (evt_req_id == SLI_CT_ELX_LOOPBACK)) |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1140 | return 0; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1141 | return 1; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1142 | } |
| 1143 | |
| 1144 | /** |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1145 | * lpfc_bsg_ct_unsol_abort - handler ct abort to management plane |
| 1146 | * @phba: Pointer to HBA context object. |
| 1147 | * @dmabuf: pointer to a dmabuf that describes the FC sequence |
| 1148 | * |
| 1149 | * This function handles abort to the CT command toward management plane |
| 1150 | * for SLI4 port. |
| 1151 | * |
| 1152 | * If the pending context of a CT command to management plane present, clears |
| 1153 | * such context and returns 1 for handled; otherwise, it returns 0 indicating |
| 1154 | * no context exists. |
| 1155 | **/ |
| 1156 | int |
| 1157 | lpfc_bsg_ct_unsol_abort(struct lpfc_hba *phba, struct hbq_dmabuf *dmabuf) |
| 1158 | { |
| 1159 | struct fc_frame_header fc_hdr; |
| 1160 | struct fc_frame_header *fc_hdr_ptr = &fc_hdr; |
| 1161 | int ctx_idx, handled = 0; |
| 1162 | uint16_t oxid, rxid; |
| 1163 | uint32_t sid; |
| 1164 | |
| 1165 | memcpy(fc_hdr_ptr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); |
| 1166 | sid = sli4_sid_from_fc_hdr(fc_hdr_ptr); |
| 1167 | oxid = be16_to_cpu(fc_hdr_ptr->fh_ox_id); |
| 1168 | rxid = be16_to_cpu(fc_hdr_ptr->fh_rx_id); |
| 1169 | |
| 1170 | for (ctx_idx = 0; ctx_idx < LPFC_CT_CTX_MAX; ctx_idx++) { |
| 1171 | if (phba->ct_ctx[ctx_idx].valid != UNSOL_VALID) |
| 1172 | continue; |
| 1173 | if (phba->ct_ctx[ctx_idx].rxid != rxid) |
| 1174 | continue; |
| 1175 | if (phba->ct_ctx[ctx_idx].oxid != oxid) |
| 1176 | continue; |
| 1177 | if (phba->ct_ctx[ctx_idx].SID != sid) |
| 1178 | continue; |
| 1179 | phba->ct_ctx[ctx_idx].valid = UNSOL_INVALID; |
| 1180 | handled = 1; |
| 1181 | } |
| 1182 | return handled; |
| 1183 | } |
| 1184 | |
| 1185 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1186 | * lpfc_bsg_hba_set_event - process a SET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1187 | * @job: SET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1188 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1189 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1190 | lpfc_bsg_hba_set_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1191 | { |
| 1192 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1193 | struct lpfc_hba *phba = vport->phba; |
| 1194 | struct set_ct_event *event_req; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1195 | struct lpfc_bsg_event *evt; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1196 | int rc = 0; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1197 | struct bsg_job_data *dd_data = NULL; |
| 1198 | uint32_t ev_mask; |
| 1199 | unsigned long flags; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1200 | |
| 1201 | if (job->request_len < |
| 1202 | sizeof(struct fc_bsg_request) + sizeof(struct set_ct_event)) { |
| 1203 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1204 | "2612 Received SET_CT_EVENT below minimum " |
| 1205 | "size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1206 | rc = -EINVAL; |
| 1207 | goto job_error; |
| 1208 | } |
| 1209 | |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1210 | event_req = (struct set_ct_event *) |
| 1211 | job->request->rqst_data.h_vendor.vendor_cmd; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1212 | ev_mask = ((uint32_t)(unsigned long)event_req->type_mask & |
| 1213 | FC_REG_EVENT_MASK); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1214 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1215 | list_for_each_entry(evt, &phba->ct_ev_waiters, node) { |
| 1216 | if (evt->reg_id == event_req->ev_reg_id) { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1217 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1218 | evt->wait_time_stamp = jiffies; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1219 | dd_data = (struct bsg_job_data *)evt->dd_data; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1220 | break; |
| 1221 | } |
| 1222 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1223 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1224 | |
| 1225 | if (&evt->node == &phba->ct_ev_waiters) { |
| 1226 | /* no event waiting struct yet - first call */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1227 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1228 | if (dd_data == NULL) { |
| 1229 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1230 | "2734 Failed allocation of dd_data\n"); |
| 1231 | rc = -ENOMEM; |
| 1232 | goto job_error; |
| 1233 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1234 | evt = lpfc_bsg_event_new(ev_mask, event_req->ev_reg_id, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1235 | event_req->ev_req_id); |
| 1236 | if (!evt) { |
| 1237 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1238 | "2617 Failed allocation of event " |
| 1239 | "waiter\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1240 | rc = -ENOMEM; |
| 1241 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1242 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1243 | dd_data->type = TYPE_EVT; |
| 1244 | dd_data->set_job = NULL; |
| 1245 | dd_data->context_un.evt = evt; |
| 1246 | evt->dd_data = (void *)dd_data; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1247 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1248 | list_add(&evt->node, &phba->ct_ev_waiters); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1249 | lpfc_bsg_event_ref(evt); |
| 1250 | evt->wait_time_stamp = jiffies; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1251 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1252 | } |
| 1253 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1254 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1255 | evt->waiting = 1; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1256 | dd_data->set_job = job; /* for unsolicited command */ |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1257 | job->dd_data = dd_data; /* for fc transport timeout callback*/ |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1258 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1259 | return 0; /* call job done later */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1260 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1261 | job_error: |
| 1262 | if (dd_data != NULL) |
| 1263 | kfree(dd_data); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1264 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1265 | job->dd_data = NULL; |
| 1266 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1267 | } |
| 1268 | |
| 1269 | /** |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1270 | * lpfc_bsg_hba_get_event - process a GET_EVENT bsg vendor command |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1271 | * @job: GET_EVENT fc_bsg_job |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1272 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1273 | static int |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1274 | lpfc_bsg_hba_get_event(struct fc_bsg_job *job) |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1275 | { |
| 1276 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1277 | struct lpfc_hba *phba = vport->phba; |
| 1278 | struct get_ct_event *event_req; |
| 1279 | struct get_ct_event_reply *event_reply; |
James Smart | 9a803a7 | 2013-09-06 12:17:56 -0400 | [diff] [blame] | 1280 | struct lpfc_bsg_event *evt, *evt_next; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1281 | struct event_data *evt_dat = NULL; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1282 | unsigned long flags; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1283 | uint32_t rc = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1284 | |
| 1285 | if (job->request_len < |
| 1286 | sizeof(struct fc_bsg_request) + sizeof(struct get_ct_event)) { |
| 1287 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1288 | "2613 Received GET_CT_EVENT request below " |
| 1289 | "minimum size\n"); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1290 | rc = -EINVAL; |
| 1291 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1292 | } |
| 1293 | |
| 1294 | event_req = (struct get_ct_event *) |
| 1295 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1296 | |
| 1297 | event_reply = (struct get_ct_event_reply *) |
| 1298 | job->reply->reply_data.vendor_reply.vendor_rsp; |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1299 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 9a803a7 | 2013-09-06 12:17:56 -0400 | [diff] [blame] | 1300 | list_for_each_entry_safe(evt, evt_next, &phba->ct_ev_waiters, node) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1301 | if (evt->reg_id == event_req->ev_reg_id) { |
| 1302 | if (list_empty(&evt->events_to_get)) |
| 1303 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1304 | lpfc_bsg_event_ref(evt); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1305 | evt->wait_time_stamp = jiffies; |
| 1306 | evt_dat = list_entry(evt->events_to_get.prev, |
| 1307 | struct event_data, node); |
| 1308 | list_del(&evt_dat->node); |
| 1309 | break; |
| 1310 | } |
| 1311 | } |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1312 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1313 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1314 | /* The app may continue to ask for event data until it gets |
| 1315 | * an error indicating that there isn't anymore |
| 1316 | */ |
| 1317 | if (evt_dat == NULL) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1318 | job->reply->reply_payload_rcv_len = 0; |
| 1319 | rc = -ENOENT; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1320 | goto job_error; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1321 | } |
| 1322 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1323 | if (evt_dat->len > job->request_payload.payload_len) { |
| 1324 | evt_dat->len = job->request_payload.payload_len; |
| 1325 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1326 | "2618 Truncated event data at %d " |
| 1327 | "bytes\n", |
| 1328 | job->request_payload.payload_len); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1329 | } |
| 1330 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1331 | event_reply->type = evt_dat->type; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1332 | event_reply->immed_data = evt_dat->immed_dat; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1333 | if (evt_dat->len > 0) |
| 1334 | job->reply->reply_payload_rcv_len = |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1335 | sg_copy_from_buffer(job->request_payload.sg_list, |
| 1336 | job->request_payload.sg_cnt, |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1337 | evt_dat->data, evt_dat->len); |
| 1338 | else |
| 1339 | job->reply->reply_payload_rcv_len = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1340 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1341 | if (evt_dat) { |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1342 | kfree(evt_dat->data); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1343 | kfree(evt_dat); |
| 1344 | } |
| 1345 | |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1346 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1347 | lpfc_bsg_event_unref(evt); |
James Smart | 4fede78 | 2010-01-26 23:08:55 -0500 | [diff] [blame] | 1348 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1349 | job->dd_data = NULL; |
| 1350 | job->reply->result = 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1351 | job->job_done(job); |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1352 | return 0; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1353 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 1354 | job_error: |
| 1355 | job->dd_data = NULL; |
| 1356 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 1357 | return rc; |
| 1358 | } |
| 1359 | |
| 1360 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1361 | * lpfc_issue_ct_rsp_cmp - lpfc_issue_ct_rsp's completion handler |
| 1362 | * @phba: Pointer to HBA context object. |
| 1363 | * @cmdiocbq: Pointer to command iocb. |
| 1364 | * @rspiocbq: Pointer to response iocb. |
| 1365 | * |
| 1366 | * This function is the completion handler for iocbs issued using |
| 1367 | * lpfc_issue_ct_rsp_cmp function. This function is called by the |
| 1368 | * ring event handler function without any lock held. This function |
| 1369 | * can be called from both worker thread context and interrupt |
| 1370 | * context. This function also can be called from other thread which |
| 1371 | * cleans up the SLI layer objects. |
| 1372 | * This function copy the contents of the response iocb to the |
| 1373 | * response iocb memory object provided by the caller of |
| 1374 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 1375 | * sleeps for the iocb completion. |
| 1376 | **/ |
| 1377 | static void |
| 1378 | lpfc_issue_ct_rsp_cmp(struct lpfc_hba *phba, |
| 1379 | struct lpfc_iocbq *cmdiocbq, |
| 1380 | struct lpfc_iocbq *rspiocbq) |
| 1381 | { |
| 1382 | struct bsg_job_data *dd_data; |
| 1383 | struct fc_bsg_job *job; |
| 1384 | IOCB_t *rsp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1385 | struct lpfc_dmabuf *bmp, *cmp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1386 | struct lpfc_nodelist *ndlp; |
| 1387 | unsigned long flags; |
| 1388 | int rc = 0; |
| 1389 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1390 | dd_data = cmdiocbq->context1; |
| 1391 | |
| 1392 | /* Determine if job has been aborted */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1393 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1394 | job = dd_data->set_job; |
| 1395 | if (job) { |
| 1396 | /* Prevent timeout handling from trying to abort job */ |
| 1397 | job->dd_data = NULL; |
| 1398 | } |
| 1399 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 1400 | |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1401 | /* Close the timeout handler abort window */ |
| 1402 | spin_lock_irqsave(&phba->hbalock, flags); |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 1403 | cmdiocbq->iocb_flag &= ~LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1404 | spin_unlock_irqrestore(&phba->hbalock, flags); |
| 1405 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1406 | ndlp = dd_data->context_un.iocb.ndlp; |
| 1407 | cmp = cmdiocbq->context2; |
| 1408 | bmp = cmdiocbq->context3; |
| 1409 | rsp = &rspiocbq->iocb; |
| 1410 | |
| 1411 | /* Copy the completed job data or set the error status */ |
| 1412 | |
| 1413 | if (job) { |
| 1414 | if (rsp->ulpStatus) { |
| 1415 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 1416 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { |
| 1417 | case IOERR_SEQUENCE_TIMEOUT: |
| 1418 | rc = -ETIMEDOUT; |
| 1419 | break; |
| 1420 | case IOERR_INVALID_RPI: |
| 1421 | rc = -EFAULT; |
| 1422 | break; |
| 1423 | default: |
| 1424 | rc = -EACCES; |
| 1425 | break; |
| 1426 | } |
| 1427 | } else { |
| 1428 | rc = -EACCES; |
| 1429 | } |
| 1430 | } else { |
| 1431 | job->reply->reply_payload_rcv_len = 0; |
| 1432 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1433 | } |
| 1434 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1435 | lpfc_free_bsg_buffers(phba, cmp); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1436 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1437 | kfree(bmp); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1438 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 1439 | lpfc_nlp_put(ndlp); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1440 | kfree(dd_data); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1441 | |
| 1442 | /* Complete the job if the job is still active */ |
| 1443 | |
| 1444 | if (job) { |
| 1445 | job->reply->result = rc; |
| 1446 | job->job_done(job); |
| 1447 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1448 | return; |
| 1449 | } |
| 1450 | |
| 1451 | /** |
| 1452 | * lpfc_issue_ct_rsp - issue a ct response |
| 1453 | * @phba: Pointer to HBA context object. |
| 1454 | * @job: Pointer to the job object. |
| 1455 | * @tag: tag index value into the ports context exchange array. |
| 1456 | * @bmp: Pointer to a dma buffer descriptor. |
| 1457 | * @num_entry: Number of enties in the bde. |
| 1458 | **/ |
| 1459 | static int |
| 1460 | lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1461 | struct lpfc_dmabuf *cmp, struct lpfc_dmabuf *bmp, |
| 1462 | int num_entry) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1463 | { |
| 1464 | IOCB_t *icmd; |
| 1465 | struct lpfc_iocbq *ctiocb = NULL; |
| 1466 | int rc = 0; |
| 1467 | struct lpfc_nodelist *ndlp = NULL; |
| 1468 | struct bsg_job_data *dd_data; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1469 | unsigned long flags; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1470 | uint32_t creg_val; |
| 1471 | |
| 1472 | /* allocate our bsg tracking structure */ |
| 1473 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 1474 | if (!dd_data) { |
| 1475 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1476 | "2736 Failed allocation of dd_data\n"); |
| 1477 | rc = -ENOMEM; |
| 1478 | goto no_dd_data; |
| 1479 | } |
| 1480 | |
| 1481 | /* Allocate buffer for command iocb */ |
| 1482 | ctiocb = lpfc_sli_get_iocbq(phba); |
| 1483 | if (!ctiocb) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 1484 | rc = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1485 | goto no_ctiocb; |
| 1486 | } |
| 1487 | |
| 1488 | icmd = &ctiocb->iocb; |
| 1489 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
| 1490 | icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 1491 | icmd->un.xseq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 1492 | icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 1493 | icmd->un.xseq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64)); |
| 1494 | icmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 1495 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 1496 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_SOL_CTL; |
| 1497 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 1498 | |
| 1499 | /* Fill in rest of iocb */ |
| 1500 | icmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 1501 | icmd->ulpBdeCount = 1; |
| 1502 | icmd->ulpLe = 1; |
| 1503 | icmd->ulpClass = CLASS3; |
| 1504 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 1505 | /* Do not issue unsol response if oxid not marked as valid */ |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1506 | if (phba->ct_ctx[tag].valid != UNSOL_VALID) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1507 | rc = IOCB_ERROR; |
| 1508 | goto issue_ct_rsp_exit; |
| 1509 | } |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1510 | icmd->ulpContext = phba->ct_ctx[tag].rxid; |
| 1511 | icmd->unsli3.rcvsli3.ox_id = phba->ct_ctx[tag].oxid; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1512 | ndlp = lpfc_findnode_did(phba->pport, phba->ct_ctx[tag].SID); |
| 1513 | if (!ndlp) { |
| 1514 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, |
| 1515 | "2721 ndlp null for oxid %x SID %x\n", |
| 1516 | icmd->ulpContext, |
| 1517 | phba->ct_ctx[tag].SID); |
| 1518 | rc = IOCB_ERROR; |
| 1519 | goto issue_ct_rsp_exit; |
| 1520 | } |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1521 | |
| 1522 | /* Check if the ndlp is active */ |
| 1523 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1524 | rc = IOCB_ERROR; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1525 | goto issue_ct_rsp_exit; |
| 1526 | } |
| 1527 | |
| 1528 | /* get a refernece count so the ndlp doesn't go away while |
| 1529 | * we respond |
| 1530 | */ |
| 1531 | if (!lpfc_nlp_get(ndlp)) { |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1532 | rc = IOCB_ERROR; |
James Smart | 589a52d | 2010-07-14 15:30:54 -0400 | [diff] [blame] | 1533 | goto issue_ct_rsp_exit; |
| 1534 | } |
| 1535 | |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1536 | icmd->un.ulpWord[3] = |
James Smart | 6d368e5 | 2011-05-24 11:44:12 -0400 | [diff] [blame] | 1537 | phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; |
| 1538 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1539 | /* The exchange is done, mark the entry as invalid */ |
James Smart | 6dd9e31 | 2013-01-03 15:43:37 -0500 | [diff] [blame] | 1540 | phba->ct_ctx[tag].valid = UNSOL_INVALID; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1541 | } else |
| 1542 | icmd->ulpContext = (ushort) tag; |
| 1543 | |
| 1544 | icmd->ulpTimeout = phba->fc_ratov * 2; |
| 1545 | |
| 1546 | /* Xmit CT response on exchange <xid> */ |
| 1547 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, |
James Smart | 7851fe2 | 2011-07-22 18:36:52 -0400 | [diff] [blame] | 1548 | "2722 Xmit CT response on exchange x%x Data: x%x x%x x%x\n", |
| 1549 | icmd->ulpContext, icmd->ulpIoTag, tag, phba->link_state); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1550 | |
| 1551 | ctiocb->iocb_cmpl = NULL; |
| 1552 | ctiocb->iocb_flag |= LPFC_IO_LIBDFC; |
| 1553 | ctiocb->vport = phba->pport; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1554 | ctiocb->context1 = dd_data; |
| 1555 | ctiocb->context2 = cmp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1556 | ctiocb->context3 = bmp; |
James Smart | d5ce53b | 2013-04-17 20:17:26 -0400 | [diff] [blame] | 1557 | ctiocb->context_un.ndlp = ndlp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1558 | ctiocb->iocb_cmpl = lpfc_issue_ct_rsp_cmp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1559 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1560 | dd_data->type = TYPE_IOCB; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1561 | dd_data->set_job = job; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1562 | dd_data->context_un.iocb.cmdiocbq = ctiocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1563 | dd_data->context_un.iocb.ndlp = ndlp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1564 | dd_data->context_un.iocb.rmp = NULL; |
| 1565 | job->dd_data = dd_data; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1566 | |
| 1567 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
James Smart | 9940b97 | 2011-03-11 16:06:12 -0500 | [diff] [blame] | 1568 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 1569 | rc = -IOCB_ERROR; |
| 1570 | goto issue_ct_rsp_exit; |
| 1571 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1572 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 1573 | writel(creg_val, phba->HCregaddr); |
| 1574 | readl(phba->HCregaddr); /* flush */ |
| 1575 | } |
| 1576 | |
| 1577 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); |
| 1578 | |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1579 | if (rc == IOCB_SUCCESS) { |
| 1580 | spin_lock_irqsave(&phba->hbalock, flags); |
| 1581 | /* make sure the I/O had not been completed/released */ |
| 1582 | if (ctiocb->iocb_flag & LPFC_IO_LIBDFC) { |
| 1583 | /* open up abort window to timeout handler */ |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 1584 | ctiocb->iocb_flag |= LPFC_IO_CMD_OUTSTANDING; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1585 | } |
| 1586 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1587 | return 0; /* done for now */ |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 1588 | } |
| 1589 | |
| 1590 | /* iocb failed so cleanup */ |
| 1591 | job->dd_data = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1592 | |
| 1593 | issue_ct_rsp_exit: |
| 1594 | lpfc_sli_release_iocbq(phba, ctiocb); |
| 1595 | no_ctiocb: |
| 1596 | kfree(dd_data); |
| 1597 | no_dd_data: |
| 1598 | return rc; |
| 1599 | } |
| 1600 | |
| 1601 | /** |
| 1602 | * lpfc_bsg_send_mgmt_rsp - process a SEND_MGMT_RESP bsg vendor command |
| 1603 | * @job: SEND_MGMT_RESP fc_bsg_job |
| 1604 | **/ |
| 1605 | static int |
| 1606 | lpfc_bsg_send_mgmt_rsp(struct fc_bsg_job *job) |
| 1607 | { |
| 1608 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 1609 | struct lpfc_hba *phba = vport->phba; |
| 1610 | struct send_mgmt_resp *mgmt_resp = (struct send_mgmt_resp *) |
| 1611 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1612 | struct ulp_bde64 *bpl; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1613 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL; |
| 1614 | int bpl_entries; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1615 | uint32_t tag = mgmt_resp->tag; |
| 1616 | unsigned long reqbfrcnt = |
| 1617 | (unsigned long)job->request_payload.payload_len; |
| 1618 | int rc = 0; |
| 1619 | |
| 1620 | /* in case no data is transferred */ |
| 1621 | job->reply->reply_payload_rcv_len = 0; |
| 1622 | |
| 1623 | if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) { |
| 1624 | rc = -ERANGE; |
| 1625 | goto send_mgmt_rsp_exit; |
| 1626 | } |
| 1627 | |
| 1628 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 1629 | if (!bmp) { |
| 1630 | rc = -ENOMEM; |
| 1631 | goto send_mgmt_rsp_exit; |
| 1632 | } |
| 1633 | |
| 1634 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 1635 | if (!bmp->virt) { |
| 1636 | rc = -ENOMEM; |
| 1637 | goto send_mgmt_rsp_free_bmp; |
| 1638 | } |
| 1639 | |
| 1640 | INIT_LIST_HEAD(&bmp->list); |
| 1641 | bpl = (struct ulp_bde64 *) bmp->virt; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1642 | bpl_entries = (LPFC_BPL_SIZE/sizeof(struct ulp_bde64)); |
| 1643 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, |
| 1644 | 1, bpl, &bpl_entries); |
| 1645 | if (!cmp) { |
| 1646 | rc = -ENOMEM; |
| 1647 | goto send_mgmt_rsp_free_bmp; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1648 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1649 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
| 1650 | job->request_payload.payload_len, 1); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1651 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1652 | rc = lpfc_issue_ct_rsp(phba, job, tag, cmp, bmp, bpl_entries); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1653 | |
| 1654 | if (rc == IOCB_SUCCESS) |
| 1655 | return 0; /* done for now */ |
| 1656 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1657 | rc = -EACCES; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1658 | |
| 1659 | lpfc_free_bsg_buffers(phba, cmp); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1660 | |
| 1661 | send_mgmt_rsp_free_bmp: |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 1662 | if (bmp->virt) |
| 1663 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1664 | kfree(bmp); |
| 1665 | send_mgmt_rsp_exit: |
| 1666 | /* make error code available to userspace */ |
| 1667 | job->reply->result = rc; |
| 1668 | job->dd_data = NULL; |
| 1669 | return rc; |
| 1670 | } |
| 1671 | |
| 1672 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1673 | * lpfc_bsg_diag_mode_enter - process preparing into device diag loopback mode |
| 1674 | * @phba: Pointer to HBA context object. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1675 | * |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1676 | * This function is responsible for preparing driver for diag loopback |
| 1677 | * on device. |
| 1678 | */ |
| 1679 | static int |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1680 | lpfc_bsg_diag_mode_enter(struct lpfc_hba *phba) |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1681 | { |
| 1682 | struct lpfc_vport **vports; |
| 1683 | struct Scsi_Host *shost; |
| 1684 | struct lpfc_sli *psli; |
| 1685 | struct lpfc_sli_ring *pring; |
| 1686 | int i = 0; |
| 1687 | |
| 1688 | psli = &phba->sli; |
| 1689 | if (!psli) |
| 1690 | return -ENODEV; |
| 1691 | |
| 1692 | pring = &psli->ring[LPFC_FCP_RING]; |
| 1693 | if (!pring) |
| 1694 | return -ENODEV; |
| 1695 | |
| 1696 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 1697 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 1698 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) |
| 1699 | return -EACCES; |
| 1700 | |
| 1701 | vports = lpfc_create_vport_work_array(phba); |
| 1702 | if (vports) { |
| 1703 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1704 | shost = lpfc_shost_from_vport(vports[i]); |
| 1705 | scsi_block_requests(shost); |
| 1706 | } |
| 1707 | lpfc_destroy_vport_work_array(phba, vports); |
| 1708 | } else { |
| 1709 | shost = lpfc_shost_from_vport(phba->pport); |
| 1710 | scsi_block_requests(shost); |
| 1711 | } |
| 1712 | |
James Smart | 0e9bb8d | 2013-03-01 16:35:12 -0500 | [diff] [blame] | 1713 | while (!list_empty(&pring->txcmplq)) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1714 | if (i++ > 500) /* wait up to 5 seconds */ |
| 1715 | break; |
| 1716 | msleep(10); |
| 1717 | } |
| 1718 | return 0; |
| 1719 | } |
| 1720 | |
| 1721 | /** |
| 1722 | * lpfc_bsg_diag_mode_exit - exit process from device diag loopback mode |
| 1723 | * @phba: Pointer to HBA context object. |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1724 | * |
| 1725 | * This function is responsible for driver exit processing of setting up |
| 1726 | * diag loopback mode on device. |
| 1727 | */ |
| 1728 | static void |
| 1729 | lpfc_bsg_diag_mode_exit(struct lpfc_hba *phba) |
| 1730 | { |
| 1731 | struct Scsi_Host *shost; |
| 1732 | struct lpfc_vport **vports; |
| 1733 | int i; |
| 1734 | |
| 1735 | vports = lpfc_create_vport_work_array(phba); |
| 1736 | if (vports) { |
| 1737 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { |
| 1738 | shost = lpfc_shost_from_vport(vports[i]); |
| 1739 | scsi_unblock_requests(shost); |
| 1740 | } |
| 1741 | lpfc_destroy_vport_work_array(phba, vports); |
| 1742 | } else { |
| 1743 | shost = lpfc_shost_from_vport(phba->pport); |
| 1744 | scsi_unblock_requests(shost); |
| 1745 | } |
| 1746 | return; |
| 1747 | } |
| 1748 | |
| 1749 | /** |
| 1750 | * lpfc_sli3_bsg_diag_loopback_mode - process an sli3 bsg vendor command |
| 1751 | * @phba: Pointer to HBA context object. |
| 1752 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 1753 | * |
| 1754 | * This function is responsible for placing an sli3 port into diagnostic |
| 1755 | * loopback mode in order to perform a diagnostic loopback test. |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1756 | * All new scsi requests are blocked, a small delay is used to allow the |
| 1757 | * scsi requests to complete then the link is brought down. If the link is |
| 1758 | * is placed in loopback mode then scsi requests are again allowed |
| 1759 | * so the scsi mid-layer doesn't give up on the port. |
| 1760 | * All of this is done in-line. |
| 1761 | */ |
| 1762 | static int |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1763 | 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] | 1764 | { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1765 | struct diag_mode_set *loopback_mode; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1766 | uint32_t link_flags; |
| 1767 | uint32_t timeout; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1768 | LPFC_MBOXQ_t *pmboxq = NULL; |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 1769 | int mbxstatus = MBX_SUCCESS; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1770 | int i = 0; |
| 1771 | int rc = 0; |
| 1772 | |
| 1773 | /* no data to return just the return code */ |
| 1774 | job->reply->reply_payload_rcv_len = 0; |
| 1775 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1776 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 1777 | sizeof(struct diag_mode_set)) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1778 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1779 | "2738 Received DIAG MODE request size:%d " |
| 1780 | "below the minimum size:%d\n", |
| 1781 | job->request_len, |
| 1782 | (int)(sizeof(struct fc_bsg_request) + |
| 1783 | sizeof(struct diag_mode_set))); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1784 | rc = -EINVAL; |
| 1785 | goto job_error; |
| 1786 | } |
| 1787 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 1788 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1789 | if (rc) |
| 1790 | goto job_error; |
| 1791 | |
| 1792 | /* bring the link to diagnostic mode */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1793 | loopback_mode = (struct diag_mode_set *) |
| 1794 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 1795 | link_flags = loopback_mode->type; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 1796 | timeout = loopback_mode->timeout * 100; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1797 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1798 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1799 | if (!pmboxq) { |
| 1800 | rc = -ENOMEM; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1801 | goto loopback_mode_exit; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1802 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1803 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1804 | pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; |
| 1805 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1806 | |
| 1807 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1808 | |
| 1809 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) { |
| 1810 | /* wait for link down before proceeding */ |
| 1811 | i = 0; |
| 1812 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 1813 | if (i++ > timeout) { |
| 1814 | rc = -ETIMEDOUT; |
| 1815 | goto loopback_mode_exit; |
| 1816 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1817 | msleep(10); |
| 1818 | } |
| 1819 | |
| 1820 | memset((void *)pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 1821 | if (link_flags == INTERNAL_LOOP_BACK) |
| 1822 | pmboxq->u.mb.un.varInitLnk.link_flags = FLAGS_LOCAL_LB; |
| 1823 | else |
| 1824 | pmboxq->u.mb.un.varInitLnk.link_flags = |
| 1825 | FLAGS_TOPOLOGY_MODE_LOOP; |
| 1826 | |
| 1827 | pmboxq->u.mb.mbxCommand = MBX_INIT_LINK; |
| 1828 | pmboxq->u.mb.mbxOwner = OWN_HOST; |
| 1829 | |
| 1830 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, |
| 1831 | LPFC_MBOX_TMO); |
| 1832 | |
| 1833 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) |
| 1834 | rc = -ENODEV; |
| 1835 | else { |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1836 | spin_lock_irq(&phba->hbalock); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1837 | phba->link_flag |= LS_LOOPBACK_MODE; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1838 | spin_unlock_irq(&phba->hbalock); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1839 | /* wait for the link attention interrupt */ |
| 1840 | msleep(100); |
| 1841 | |
| 1842 | i = 0; |
| 1843 | while (phba->link_state != LPFC_HBA_READY) { |
| 1844 | if (i++ > timeout) { |
| 1845 | rc = -ETIMEDOUT; |
| 1846 | break; |
| 1847 | } |
| 1848 | |
| 1849 | msleep(10); |
| 1850 | } |
| 1851 | } |
| 1852 | |
| 1853 | } else |
| 1854 | rc = -ENODEV; |
| 1855 | |
| 1856 | loopback_mode_exit: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1857 | lpfc_bsg_diag_mode_exit(phba); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1858 | |
| 1859 | /* |
| 1860 | * Let SLI layer release mboxq if mbox command completed after timeout. |
| 1861 | */ |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1862 | if (pmboxq && mbxstatus != MBX_TIMEOUT) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 1863 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1864 | |
| 1865 | job_error: |
| 1866 | /* make error code available to userspace */ |
| 1867 | job->reply->result = rc; |
| 1868 | /* complete the job back to userspace if no error */ |
| 1869 | if (rc == 0) |
| 1870 | job->job_done(job); |
| 1871 | return rc; |
| 1872 | } |
| 1873 | |
| 1874 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1875 | * lpfc_sli4_bsg_set_link_diag_state - set sli4 link diag state |
| 1876 | * @phba: Pointer to HBA context object. |
| 1877 | * @diag: Flag for set link to diag or nomral operation state. |
| 1878 | * |
| 1879 | * This function is responsible for issuing a sli4 mailbox command for setting |
| 1880 | * link to either diag state or normal operation state. |
| 1881 | */ |
| 1882 | static int |
| 1883 | lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag) |
| 1884 | { |
| 1885 | LPFC_MBOXQ_t *pmboxq; |
| 1886 | struct lpfc_mbx_set_link_diag_state *link_diag_state; |
| 1887 | uint32_t req_len, alloc_len; |
| 1888 | int mbxstatus = MBX_SUCCESS, rc; |
| 1889 | |
| 1890 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1891 | if (!pmboxq) |
| 1892 | return -ENOMEM; |
| 1893 | |
| 1894 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
| 1895 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 1896 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 1897 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, |
| 1898 | req_len, LPFC_SLI4_MBX_EMBED); |
| 1899 | if (alloc_len != req_len) { |
| 1900 | rc = -ENOMEM; |
| 1901 | goto link_diag_state_set_out; |
| 1902 | } |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1903 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 1904 | "3128 Set link to diagnostic state:x%x (x%x/x%x)\n", |
| 1905 | diag, phba->sli4_hba.lnk_info.lnk_tp, |
| 1906 | phba->sli4_hba.lnk_info.lnk_no); |
| 1907 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1908 | link_diag_state = &pmboxq->u.mqe.un.link_diag_state; |
James Smart | 9731592 | 2012-08-03 12:32:52 -0400 | [diff] [blame] | 1909 | bf_set(lpfc_mbx_set_diag_state_diag_bit_valid, &link_diag_state->u.req, |
| 1910 | LPFC_DIAG_STATE_DIAG_BIT_VALID_CHANGE); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1911 | bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req, |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1912 | phba->sli4_hba.lnk_info.lnk_no); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1913 | bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req, |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1914 | phba->sli4_hba.lnk_info.lnk_tp); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 1915 | if (diag) |
| 1916 | bf_set(lpfc_mbx_set_diag_state_diag, |
| 1917 | &link_diag_state->u.req, 1); |
| 1918 | else |
| 1919 | bf_set(lpfc_mbx_set_diag_state_diag, |
| 1920 | &link_diag_state->u.req, 0); |
| 1921 | |
| 1922 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1923 | |
| 1924 | if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0)) |
| 1925 | rc = 0; |
| 1926 | else |
| 1927 | rc = -ENODEV; |
| 1928 | |
| 1929 | link_diag_state_set_out: |
| 1930 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) |
| 1931 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1932 | |
| 1933 | return rc; |
| 1934 | } |
| 1935 | |
| 1936 | /** |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1937 | * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic |
| 1938 | * @phba: Pointer to HBA context object. |
| 1939 | * |
| 1940 | * This function is responsible for issuing a sli4 mailbox command for setting |
| 1941 | * up internal loopback diagnostic. |
| 1942 | */ |
| 1943 | static int |
| 1944 | lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba) |
| 1945 | { |
| 1946 | LPFC_MBOXQ_t *pmboxq; |
| 1947 | uint32_t req_len, alloc_len; |
| 1948 | struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback; |
| 1949 | int mbxstatus = MBX_SUCCESS, rc = 0; |
| 1950 | |
| 1951 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1952 | if (!pmboxq) |
| 1953 | return -ENOMEM; |
| 1954 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) - |
| 1955 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 1956 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 1957 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK, |
| 1958 | req_len, LPFC_SLI4_MBX_EMBED); |
| 1959 | if (alloc_len != req_len) { |
| 1960 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1961 | return -ENOMEM; |
| 1962 | } |
| 1963 | link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback; |
| 1964 | bf_set(lpfc_mbx_set_diag_state_link_num, |
| 1965 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no); |
| 1966 | bf_set(lpfc_mbx_set_diag_state_link_type, |
| 1967 | &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp); |
| 1968 | bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req, |
James Smart | 3ef6d24 | 2012-01-18 16:23:48 -0500 | [diff] [blame] | 1969 | LPFC_DIAG_LOOPBACK_TYPE_INTERNAL); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 1970 | |
| 1971 | mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO); |
| 1972 | if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) { |
| 1973 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1974 | "3127 Failed setup loopback mode mailbox " |
| 1975 | "command, rc:x%x, status:x%x\n", mbxstatus, |
| 1976 | pmboxq->u.mb.mbxStatus); |
| 1977 | rc = -ENODEV; |
| 1978 | } |
| 1979 | if (pmboxq && (mbxstatus != MBX_TIMEOUT)) |
| 1980 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 1981 | return rc; |
| 1982 | } |
| 1983 | |
| 1984 | /** |
| 1985 | * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic |
| 1986 | * @phba: Pointer to HBA context object. |
| 1987 | * |
| 1988 | * This function set up SLI4 FC port registrations for diagnostic run, which |
| 1989 | * includes all the rpis, vfi, and also vpi. |
| 1990 | */ |
| 1991 | static int |
| 1992 | lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba) |
| 1993 | { |
| 1994 | int rc; |
| 1995 | |
| 1996 | if (phba->pport->fc_flag & FC_VFI_REGISTERED) { |
| 1997 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 1998 | "3136 Port still had vfi registered: " |
| 1999 | "mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n", |
| 2000 | phba->pport->fc_myDID, phba->fcf.fcfi, |
| 2001 | phba->sli4_hba.vfi_ids[phba->pport->vfi], |
| 2002 | phba->vpi_ids[phba->pport->vpi]); |
| 2003 | return -EINVAL; |
| 2004 | } |
| 2005 | rc = lpfc_issue_reg_vfi(phba->pport); |
| 2006 | return rc; |
| 2007 | } |
| 2008 | |
| 2009 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2010 | * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command |
| 2011 | * @phba: Pointer to HBA context object. |
| 2012 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 2013 | * |
| 2014 | * This function is responsible for placing an sli4 port into diagnostic |
| 2015 | * loopback mode in order to perform a diagnostic loopback test. |
| 2016 | */ |
| 2017 | static int |
| 2018 | lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job) |
| 2019 | { |
| 2020 | struct diag_mode_set *loopback_mode; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2021 | uint32_t link_flags, timeout; |
| 2022 | int i, rc = 0; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2023 | |
| 2024 | /* no data to return just the return code */ |
| 2025 | job->reply->reply_payload_rcv_len = 0; |
| 2026 | |
| 2027 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 2028 | sizeof(struct diag_mode_set)) { |
| 2029 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2030 | "3011 Received DIAG MODE request size:%d " |
| 2031 | "below the minimum size:%d\n", |
| 2032 | job->request_len, |
| 2033 | (int)(sizeof(struct fc_bsg_request) + |
| 2034 | sizeof(struct diag_mode_set))); |
| 2035 | rc = -EINVAL; |
| 2036 | goto job_error; |
| 2037 | } |
| 2038 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 2039 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2040 | if (rc) |
| 2041 | goto job_error; |
| 2042 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2043 | /* indicate we are in loobpack diagnostic mode */ |
| 2044 | spin_lock_irq(&phba->hbalock); |
| 2045 | phba->link_flag |= LS_LOOPBACK_MODE; |
| 2046 | spin_unlock_irq(&phba->hbalock); |
| 2047 | |
| 2048 | /* reset port to start frome scratch */ |
| 2049 | rc = lpfc_selective_reset(phba); |
| 2050 | if (rc) |
| 2051 | goto job_error; |
| 2052 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2053 | /* bring the link to diagnostic mode */ |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2054 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2055 | "3129 Bring link to diagnostic state.\n"); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2056 | loopback_mode = (struct diag_mode_set *) |
| 2057 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2058 | link_flags = loopback_mode->type; |
| 2059 | timeout = loopback_mode->timeout * 100; |
| 2060 | |
| 2061 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2062 | if (rc) { |
| 2063 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2064 | "3130 Failed to bring link to diagnostic " |
| 2065 | "state, rc:x%x\n", rc); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2066 | goto loopback_mode_exit; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2067 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2068 | |
| 2069 | /* wait for link down before proceeding */ |
| 2070 | i = 0; |
| 2071 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 2072 | if (i++ > timeout) { |
| 2073 | rc = -ETIMEDOUT; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2074 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2075 | "3131 Timeout waiting for link to " |
| 2076 | "diagnostic mode, timeout:%d ms\n", |
| 2077 | timeout * 10); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2078 | goto loopback_mode_exit; |
| 2079 | } |
| 2080 | msleep(10); |
| 2081 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2082 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2083 | /* set up loopback mode */ |
| 2084 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2085 | "3132 Set up loopback mode:x%x\n", link_flags); |
| 2086 | |
| 2087 | if (link_flags == INTERNAL_LOOP_BACK) |
| 2088 | rc = lpfc_sli4_bsg_set_internal_loopback(phba); |
| 2089 | else if (link_flags == EXTERNAL_LOOP_BACK) |
| 2090 | rc = lpfc_hba_init_link_fc_topology(phba, |
| 2091 | FLAGS_TOPOLOGY_MODE_PT_PT, |
| 2092 | MBX_NOWAIT); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2093 | else { |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2094 | rc = -EINVAL; |
| 2095 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 2096 | "3141 Loopback mode:x%x not supported\n", |
| 2097 | link_flags); |
| 2098 | goto loopback_mode_exit; |
| 2099 | } |
| 2100 | |
| 2101 | if (!rc) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2102 | /* wait for the link attention interrupt */ |
| 2103 | msleep(100); |
| 2104 | i = 0; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2105 | while (phba->link_state < LPFC_LINK_UP) { |
| 2106 | if (i++ > timeout) { |
| 2107 | rc = -ETIMEDOUT; |
| 2108 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2109 | "3137 Timeout waiting for link up " |
| 2110 | "in loopback mode, timeout:%d ms\n", |
| 2111 | timeout * 10); |
| 2112 | break; |
| 2113 | } |
| 2114 | msleep(10); |
| 2115 | } |
| 2116 | } |
| 2117 | |
| 2118 | /* port resource registration setup for loopback diagnostic */ |
| 2119 | if (!rc) { |
| 2120 | /* set up a none zero myDID for loopback test */ |
| 2121 | phba->pport->fc_myDID = 1; |
| 2122 | rc = lpfc_sli4_diag_fcport_reg_setup(phba); |
| 2123 | } else |
| 2124 | goto loopback_mode_exit; |
| 2125 | |
| 2126 | if (!rc) { |
| 2127 | /* wait for the port ready */ |
| 2128 | msleep(100); |
| 2129 | i = 0; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2130 | while (phba->link_state != LPFC_HBA_READY) { |
| 2131 | if (i++ > timeout) { |
| 2132 | rc = -ETIMEDOUT; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2133 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2134 | "3133 Timeout waiting for port " |
| 2135 | "loopback mode ready, timeout:%d ms\n", |
| 2136 | timeout * 10); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2137 | break; |
| 2138 | } |
| 2139 | msleep(10); |
| 2140 | } |
| 2141 | } |
| 2142 | |
| 2143 | loopback_mode_exit: |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2144 | /* clear loopback diagnostic mode */ |
| 2145 | if (rc) { |
| 2146 | spin_lock_irq(&phba->hbalock); |
| 2147 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
| 2148 | spin_unlock_irq(&phba->hbalock); |
| 2149 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2150 | lpfc_bsg_diag_mode_exit(phba); |
| 2151 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2152 | job_error: |
| 2153 | /* make error code available to userspace */ |
| 2154 | job->reply->result = rc; |
| 2155 | /* complete the job back to userspace if no error */ |
| 2156 | if (rc == 0) |
| 2157 | job->job_done(job); |
| 2158 | return rc; |
| 2159 | } |
| 2160 | |
| 2161 | /** |
| 2162 | * lpfc_bsg_diag_loopback_mode - bsg vendor command for diag loopback mode |
| 2163 | * @job: LPFC_BSG_VENDOR_DIAG_MODE |
| 2164 | * |
| 2165 | * This function is responsible for responding to check and dispatch bsg diag |
| 2166 | * command from the user to proper driver action routines. |
| 2167 | */ |
| 2168 | static int |
| 2169 | lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job) |
| 2170 | { |
| 2171 | struct Scsi_Host *shost; |
| 2172 | struct lpfc_vport *vport; |
| 2173 | struct lpfc_hba *phba; |
| 2174 | int rc; |
| 2175 | |
| 2176 | shost = job->shost; |
| 2177 | if (!shost) |
| 2178 | return -ENODEV; |
| 2179 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2180 | if (!vport) |
| 2181 | return -ENODEV; |
| 2182 | phba = vport->phba; |
| 2183 | if (!phba) |
| 2184 | return -ENODEV; |
| 2185 | |
| 2186 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 2187 | rc = lpfc_sli3_bsg_diag_loopback_mode(phba, job); |
| 2188 | else if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == |
| 2189 | LPFC_SLI_INTF_IF_TYPE_2) |
| 2190 | rc = lpfc_sli4_bsg_diag_loopback_mode(phba, job); |
| 2191 | else |
| 2192 | rc = -ENODEV; |
| 2193 | |
| 2194 | return rc; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2195 | } |
| 2196 | |
| 2197 | /** |
| 2198 | * lpfc_sli4_bsg_diag_mode_end - sli4 bsg vendor command for ending diag mode |
| 2199 | * @job: LPFC_BSG_VENDOR_DIAG_MODE_END |
| 2200 | * |
| 2201 | * This function is responsible for responding to check and dispatch bsg diag |
| 2202 | * command from the user to proper driver action routines. |
| 2203 | */ |
| 2204 | static int |
| 2205 | lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job) |
| 2206 | { |
| 2207 | struct Scsi_Host *shost; |
| 2208 | struct lpfc_vport *vport; |
| 2209 | struct lpfc_hba *phba; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2210 | struct diag_mode_set *loopback_mode_end_cmd; |
| 2211 | uint32_t timeout; |
| 2212 | int rc, i; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2213 | |
| 2214 | shost = job->shost; |
| 2215 | if (!shost) |
| 2216 | return -ENODEV; |
| 2217 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2218 | if (!vport) |
| 2219 | return -ENODEV; |
| 2220 | phba = vport->phba; |
| 2221 | if (!phba) |
| 2222 | return -ENODEV; |
| 2223 | |
| 2224 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 2225 | return -ENODEV; |
| 2226 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 2227 | LPFC_SLI_INTF_IF_TYPE_2) |
| 2228 | return -ENODEV; |
| 2229 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2230 | /* clear loopback diagnostic mode */ |
| 2231 | spin_lock_irq(&phba->hbalock); |
| 2232 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
| 2233 | spin_unlock_irq(&phba->hbalock); |
| 2234 | loopback_mode_end_cmd = (struct diag_mode_set *) |
| 2235 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 2236 | timeout = loopback_mode_end_cmd->timeout * 100; |
| 2237 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2238 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2239 | if (rc) { |
| 2240 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2241 | "3139 Failed to bring link to diagnostic " |
| 2242 | "state, rc:x%x\n", rc); |
| 2243 | goto loopback_mode_end_exit; |
| 2244 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2245 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2246 | /* wait for link down before proceeding */ |
| 2247 | i = 0; |
| 2248 | while (phba->link_state != LPFC_LINK_DOWN) { |
| 2249 | if (i++ > timeout) { |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2250 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 2251 | "3140 Timeout waiting for link to " |
| 2252 | "diagnostic mode_end, timeout:%d ms\n", |
| 2253 | timeout * 10); |
| 2254 | /* there is nothing much we can do here */ |
| 2255 | break; |
| 2256 | } |
| 2257 | msleep(10); |
| 2258 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2259 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2260 | /* reset port resource registrations */ |
| 2261 | rc = lpfc_selective_reset(phba); |
| 2262 | phba->pport->fc_myDID = 0; |
| 2263 | |
| 2264 | loopback_mode_end_exit: |
| 2265 | /* make return code available to userspace */ |
| 2266 | job->reply->result = rc; |
| 2267 | /* complete the job back to userspace if no error */ |
| 2268 | if (rc == 0) |
| 2269 | job->job_done(job); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2270 | return rc; |
| 2271 | } |
| 2272 | |
| 2273 | /** |
| 2274 | * lpfc_sli4_bsg_link_diag_test - sli4 bsg vendor command for diag link test |
| 2275 | * @job: LPFC_BSG_VENDOR_DIAG_LINK_TEST |
| 2276 | * |
| 2277 | * This function is to perform SLI4 diag link test request from the user |
| 2278 | * applicaiton. |
| 2279 | */ |
| 2280 | static int |
| 2281 | lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job) |
| 2282 | { |
| 2283 | struct Scsi_Host *shost; |
| 2284 | struct lpfc_vport *vport; |
| 2285 | struct lpfc_hba *phba; |
| 2286 | LPFC_MBOXQ_t *pmboxq; |
| 2287 | struct sli4_link_diag *link_diag_test_cmd; |
| 2288 | uint32_t req_len, alloc_len; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2289 | struct lpfc_mbx_run_link_diag_test *run_link_diag_test; |
| 2290 | union lpfc_sli4_cfg_shdr *shdr; |
| 2291 | uint32_t shdr_status, shdr_add_status; |
| 2292 | struct diag_status *diag_status_reply; |
| 2293 | int mbxstatus, rc = 0; |
| 2294 | |
| 2295 | shost = job->shost; |
| 2296 | if (!shost) { |
| 2297 | rc = -ENODEV; |
| 2298 | goto job_error; |
| 2299 | } |
| 2300 | vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2301 | if (!vport) { |
| 2302 | rc = -ENODEV; |
| 2303 | goto job_error; |
| 2304 | } |
| 2305 | phba = vport->phba; |
| 2306 | if (!phba) { |
| 2307 | rc = -ENODEV; |
| 2308 | goto job_error; |
| 2309 | } |
| 2310 | |
| 2311 | if (phba->sli_rev < LPFC_SLI_REV4) { |
| 2312 | rc = -ENODEV; |
| 2313 | goto job_error; |
| 2314 | } |
| 2315 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 2316 | LPFC_SLI_INTF_IF_TYPE_2) { |
| 2317 | rc = -ENODEV; |
| 2318 | goto job_error; |
| 2319 | } |
| 2320 | |
| 2321 | if (job->request_len < sizeof(struct fc_bsg_request) + |
| 2322 | sizeof(struct sli4_link_diag)) { |
| 2323 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2324 | "3013 Received LINK DIAG TEST request " |
| 2325 | " size:%d below the minimum size:%d\n", |
| 2326 | job->request_len, |
| 2327 | (int)(sizeof(struct fc_bsg_request) + |
| 2328 | sizeof(struct sli4_link_diag))); |
| 2329 | rc = -EINVAL; |
| 2330 | goto job_error; |
| 2331 | } |
| 2332 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 2333 | rc = lpfc_bsg_diag_mode_enter(phba); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2334 | if (rc) |
| 2335 | goto job_error; |
| 2336 | |
| 2337 | link_diag_test_cmd = (struct sli4_link_diag *) |
| 2338 | job->request->rqst_data.h_vendor.vendor_cmd; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2339 | |
| 2340 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1); |
| 2341 | |
| 2342 | if (rc) |
| 2343 | goto job_error; |
| 2344 | |
| 2345 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2346 | if (!pmboxq) { |
| 2347 | rc = -ENOMEM; |
| 2348 | goto link_diag_test_exit; |
| 2349 | } |
| 2350 | |
| 2351 | req_len = (sizeof(struct lpfc_mbx_set_link_diag_state) - |
| 2352 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
| 2353 | alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE, |
| 2354 | LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE, |
| 2355 | req_len, LPFC_SLI4_MBX_EMBED); |
| 2356 | if (alloc_len != req_len) { |
| 2357 | rc = -ENOMEM; |
| 2358 | goto link_diag_test_exit; |
| 2359 | } |
| 2360 | run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test; |
| 2361 | bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req, |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2362 | phba->sli4_hba.lnk_info.lnk_no); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2363 | bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req, |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2364 | phba->sli4_hba.lnk_info.lnk_tp); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2365 | bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req, |
| 2366 | link_diag_test_cmd->test_id); |
| 2367 | bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req, |
| 2368 | link_diag_test_cmd->loops); |
| 2369 | bf_set(lpfc_mbx_run_diag_test_test_ver, &run_link_diag_test->u.req, |
| 2370 | link_diag_test_cmd->test_version); |
| 2371 | bf_set(lpfc_mbx_run_diag_test_err_act, &run_link_diag_test->u.req, |
| 2372 | link_diag_test_cmd->error_action); |
| 2373 | |
| 2374 | mbxstatus = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 2375 | |
| 2376 | shdr = (union lpfc_sli4_cfg_shdr *) |
| 2377 | &pmboxq->u.mqe.un.sli4_config.header.cfg_shdr; |
| 2378 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
| 2379 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); |
| 2380 | if (shdr_status || shdr_add_status || mbxstatus) { |
| 2381 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 2382 | "3010 Run link diag test mailbox failed with " |
| 2383 | "mbx_status x%x status x%x, add_status x%x\n", |
| 2384 | mbxstatus, shdr_status, shdr_add_status); |
| 2385 | } |
| 2386 | |
| 2387 | diag_status_reply = (struct diag_status *) |
| 2388 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 2389 | |
| 2390 | if (job->reply_len < |
| 2391 | sizeof(struct fc_bsg_request) + sizeof(struct diag_status)) { |
| 2392 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 2393 | "3012 Received Run link diag test reply " |
| 2394 | "below minimum size (%d): reply_len:%d\n", |
| 2395 | (int)(sizeof(struct fc_bsg_request) + |
| 2396 | sizeof(struct diag_status)), |
| 2397 | job->reply_len); |
| 2398 | rc = -EINVAL; |
| 2399 | goto job_error; |
| 2400 | } |
| 2401 | |
| 2402 | diag_status_reply->mbox_status = mbxstatus; |
| 2403 | diag_status_reply->shdr_status = shdr_status; |
| 2404 | diag_status_reply->shdr_add_status = shdr_add_status; |
| 2405 | |
| 2406 | link_diag_test_exit: |
| 2407 | rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0); |
| 2408 | |
| 2409 | if (pmboxq) |
| 2410 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 2411 | |
| 2412 | lpfc_bsg_diag_mode_exit(phba); |
| 2413 | |
| 2414 | job_error: |
| 2415 | /* make error code available to userspace */ |
| 2416 | job->reply->result = rc; |
| 2417 | /* complete the job back to userspace if no error */ |
| 2418 | if (rc == 0) |
| 2419 | job->job_done(job); |
| 2420 | return rc; |
| 2421 | } |
| 2422 | |
| 2423 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2424 | * lpfcdiag_loop_self_reg - obtains a remote port login id |
| 2425 | * @phba: Pointer to HBA context object |
| 2426 | * @rpi: Pointer to a remote port login id |
| 2427 | * |
| 2428 | * This function obtains a remote port login id so the diag loopback test |
| 2429 | * can send and receive its own unsolicited CT command. |
| 2430 | **/ |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2431 | 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] | 2432 | { |
| 2433 | LPFC_MBOXQ_t *mbox; |
| 2434 | struct lpfc_dmabuf *dmabuff; |
| 2435 | int status; |
| 2436 | |
| 2437 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2438 | if (!mbox) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2439 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2440 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2441 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 2442 | status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID, |
| 2443 | (uint8_t *)&phba->pport->fc_sparam, |
| 2444 | mbox, *rpi); |
| 2445 | else { |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2446 | *rpi = lpfc_sli4_alloc_rpi(phba); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2447 | status = lpfc_reg_rpi(phba, phba->pport->vpi, |
| 2448 | phba->pport->fc_myDID, |
| 2449 | (uint8_t *)&phba->pport->fc_sparam, |
| 2450 | mbox, *rpi); |
| 2451 | } |
| 2452 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2453 | if (status) { |
| 2454 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2455 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2456 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2457 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2458 | } |
| 2459 | |
| 2460 | dmabuff = (struct lpfc_dmabuf *) mbox->context1; |
| 2461 | mbox->context1 = NULL; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2462 | mbox->context2 = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2463 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 2464 | |
| 2465 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 2466 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 2467 | kfree(dmabuff); |
| 2468 | if (status != MBX_TIMEOUT) |
| 2469 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2470 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2471 | lpfc_sli4_free_rpi(phba, *rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2472 | return -ENODEV; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2473 | } |
| 2474 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2475 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 2476 | *rpi = mbox->u.mb.un.varWords[0]; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2477 | |
| 2478 | lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys); |
| 2479 | kfree(dmabuff); |
| 2480 | mempool_free(mbox, phba->mbox_mem_pool); |
| 2481 | return 0; |
| 2482 | } |
| 2483 | |
| 2484 | /** |
| 2485 | * lpfcdiag_loop_self_unreg - unregs from the rpi |
| 2486 | * @phba: Pointer to HBA context object |
| 2487 | * @rpi: Remote port login id |
| 2488 | * |
| 2489 | * This function unregisters the rpi obtained in lpfcdiag_loop_self_reg |
| 2490 | **/ |
| 2491 | static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi) |
| 2492 | { |
| 2493 | LPFC_MBOXQ_t *mbox; |
| 2494 | int status; |
| 2495 | |
| 2496 | /* Allocate mboxq structure */ |
| 2497 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 2498 | if (mbox == NULL) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2499 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2500 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2501 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 2502 | lpfc_unreg_login(phba, 0, rpi, mbox); |
| 2503 | else |
| 2504 | lpfc_unreg_login(phba, phba->pport->vpi, |
| 2505 | phba->sli4_hba.rpi_ids[rpi], mbox); |
| 2506 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2507 | status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); |
| 2508 | |
| 2509 | if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) { |
| 2510 | if (status != MBX_TIMEOUT) |
| 2511 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2512 | return -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2513 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2514 | mempool_free(mbox, phba->mbox_mem_pool); |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2515 | if (phba->sli_rev == LPFC_SLI_REV4) |
| 2516 | lpfc_sli4_free_rpi(phba, rpi); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2517 | return 0; |
| 2518 | } |
| 2519 | |
| 2520 | /** |
| 2521 | * lpfcdiag_loop_get_xri - obtains the transmit and receive ids |
| 2522 | * @phba: Pointer to HBA context object |
| 2523 | * @rpi: Remote port login id |
| 2524 | * @txxri: Pointer to transmit exchange id |
| 2525 | * @rxxri: Pointer to response exchabge id |
| 2526 | * |
| 2527 | * This function obtains the transmit and receive ids required to send |
| 2528 | * an unsolicited ct command with a payload. A special lpfc FsType and CmdRsp |
| 2529 | * flags are used to the unsolicted response handler is able to process |
| 2530 | * the ct command sent on the same port. |
| 2531 | **/ |
| 2532 | static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi, |
| 2533 | uint16_t *txxri, uint16_t * rxxri) |
| 2534 | { |
| 2535 | struct lpfc_bsg_event *evt; |
| 2536 | struct lpfc_iocbq *cmdiocbq, *rspiocbq; |
| 2537 | IOCB_t *cmd, *rsp; |
| 2538 | struct lpfc_dmabuf *dmabuf; |
| 2539 | struct ulp_bde64 *bpl = NULL; |
| 2540 | struct lpfc_sli_ct_request *ctreq = NULL; |
| 2541 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2542 | int time_left; |
James Smart | 5a0916b | 2013-07-15 18:31:42 -0400 | [diff] [blame] | 2543 | int iocb_stat = IOCB_SUCCESS; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2544 | unsigned long flags; |
| 2545 | |
| 2546 | *txxri = 0; |
| 2547 | *rxxri = 0; |
| 2548 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 2549 | SLI_CT_ELX_LOOPBACK); |
| 2550 | if (!evt) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2551 | return -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2552 | |
| 2553 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2554 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 2555 | lpfc_bsg_event_ref(evt); |
| 2556 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2557 | |
| 2558 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2559 | rspiocbq = lpfc_sli_get_iocbq(phba); |
| 2560 | |
| 2561 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2562 | if (dmabuf) { |
| 2563 | dmabuf->virt = lpfc_mbuf_alloc(phba, 0, &dmabuf->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2564 | if (dmabuf->virt) { |
| 2565 | INIT_LIST_HEAD(&dmabuf->list); |
| 2566 | bpl = (struct ulp_bde64 *) dmabuf->virt; |
| 2567 | memset(bpl, 0, sizeof(*bpl)); |
| 2568 | ctreq = (struct lpfc_sli_ct_request *)(bpl + 1); |
| 2569 | bpl->addrHigh = |
| 2570 | le32_to_cpu(putPaddrHigh(dmabuf->phys + |
| 2571 | sizeof(*bpl))); |
| 2572 | bpl->addrLow = |
| 2573 | le32_to_cpu(putPaddrLow(dmabuf->phys + |
| 2574 | sizeof(*bpl))); |
| 2575 | bpl->tus.f.bdeFlags = 0; |
| 2576 | bpl->tus.f.bdeSize = ELX_LOOPBACK_HEADER_SZ; |
| 2577 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 2578 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2579 | } |
| 2580 | |
| 2581 | if (cmdiocbq == NULL || rspiocbq == NULL || |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2582 | dmabuf == NULL || bpl == NULL || ctreq == NULL || |
| 2583 | dmabuf->virt == NULL) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2584 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2585 | goto err_get_xri_exit; |
| 2586 | } |
| 2587 | |
| 2588 | cmd = &cmdiocbq->iocb; |
| 2589 | rsp = &rspiocbq->iocb; |
| 2590 | |
| 2591 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 2592 | |
| 2593 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 2594 | ctreq->RevisionId.bits.InId = 0; |
| 2595 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 2596 | ctreq->FsSubType = 0; |
| 2597 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_XRI_SETUP; |
| 2598 | ctreq->CommandResponse.bits.Size = 0; |
| 2599 | |
| 2600 | |
| 2601 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(dmabuf->phys); |
| 2602 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(dmabuf->phys); |
| 2603 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 2604 | cmd->un.xseq64.bdl.bdeSize = sizeof(*bpl); |
| 2605 | |
| 2606 | cmd->un.xseq64.w5.hcsw.Fctl = LA; |
| 2607 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 2608 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 2609 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 2610 | |
| 2611 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CR; |
| 2612 | cmd->ulpBdeCount = 1; |
| 2613 | cmd->ulpLe = 1; |
| 2614 | cmd->ulpClass = CLASS3; |
| 2615 | cmd->ulpContext = rpi; |
| 2616 | |
| 2617 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 2618 | cmdiocbq->vport = phba->pport; |
James Smart | 5a0916b | 2013-07-15 18:31:42 -0400 | [diff] [blame] | 2619 | cmdiocbq->iocb_cmpl = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2620 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2621 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2622 | rspiocbq, |
| 2623 | (phba->fc_ratov * 2) |
| 2624 | + LPFC_DRVR_TIMEOUT); |
James Smart | 53151bb | 2013-10-10 12:24:07 -0400 | [diff] [blame] | 2625 | if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2626 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2627 | goto err_get_xri_exit; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2628 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2629 | *txxri = rsp->ulpContext; |
| 2630 | |
| 2631 | evt->waiting = 1; |
| 2632 | evt->wait_time_stamp = jiffies; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2633 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2634 | evt->wq, !list_empty(&evt->events_to_see), |
James Smart | 256ec0d | 2013-04-17 20:14:58 -0400 | [diff] [blame] | 2635 | msecs_to_jiffies(1000 * |
| 2636 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2637 | if (list_empty(&evt->events_to_see)) |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2638 | ret_val = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2639 | else { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2640 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2641 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 2642 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2643 | *rxxri = (list_entry(evt->events_to_get.prev, |
| 2644 | typeof(struct event_data), |
| 2645 | node))->immed_dat; |
| 2646 | } |
| 2647 | evt->waiting = 0; |
| 2648 | |
| 2649 | err_get_xri_exit: |
| 2650 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 2651 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 2652 | lpfc_bsg_event_unref(evt); /* delete */ |
| 2653 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 2654 | |
| 2655 | if (dmabuf) { |
| 2656 | if (dmabuf->virt) |
| 2657 | lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys); |
| 2658 | kfree(dmabuf); |
| 2659 | } |
| 2660 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2661 | if (cmdiocbq && (iocb_stat != IOCB_TIMEDOUT)) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2662 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2663 | if (rspiocbq) |
| 2664 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 2665 | return ret_val; |
| 2666 | } |
| 2667 | |
| 2668 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2669 | * lpfc_bsg_dma_page_alloc - allocate a bsg mbox page sized dma buffers |
| 2670 | * @phba: Pointer to HBA context object |
| 2671 | * |
| 2672 | * This function allocates BSG_MBOX_SIZE (4KB) page size dma buffer and. |
Joe Perches | 9e03aa2 | 2013-09-03 13:45:58 -0700 | [diff] [blame] | 2673 | * returns the pointer to the buffer. |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2674 | **/ |
| 2675 | static struct lpfc_dmabuf * |
| 2676 | lpfc_bsg_dma_page_alloc(struct lpfc_hba *phba) |
| 2677 | { |
| 2678 | struct lpfc_dmabuf *dmabuf; |
| 2679 | struct pci_dev *pcidev = phba->pcidev; |
| 2680 | |
| 2681 | /* allocate dma buffer struct */ |
| 2682 | dmabuf = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2683 | if (!dmabuf) |
| 2684 | return NULL; |
| 2685 | |
| 2686 | INIT_LIST_HEAD(&dmabuf->list); |
| 2687 | |
| 2688 | /* now, allocate dma buffer */ |
Joe Perches | 1aee383 | 2014-09-03 12:56:12 -0400 | [diff] [blame] | 2689 | dmabuf->virt = dma_zalloc_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
| 2690 | &(dmabuf->phys), GFP_KERNEL); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2691 | |
| 2692 | if (!dmabuf->virt) { |
| 2693 | kfree(dmabuf); |
| 2694 | return NULL; |
| 2695 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2696 | |
| 2697 | return dmabuf; |
| 2698 | } |
| 2699 | |
| 2700 | /** |
| 2701 | * lpfc_bsg_dma_page_free - free a bsg mbox page sized dma buffer |
| 2702 | * @phba: Pointer to HBA context object. |
| 2703 | * @dmabuf: Pointer to the bsg mbox page sized dma buffer descriptor. |
| 2704 | * |
| 2705 | * This routine just simply frees a dma buffer and its associated buffer |
| 2706 | * descriptor referred by @dmabuf. |
| 2707 | **/ |
| 2708 | static void |
| 2709 | lpfc_bsg_dma_page_free(struct lpfc_hba *phba, struct lpfc_dmabuf *dmabuf) |
| 2710 | { |
| 2711 | struct pci_dev *pcidev = phba->pcidev; |
| 2712 | |
| 2713 | if (!dmabuf) |
| 2714 | return; |
| 2715 | |
| 2716 | if (dmabuf->virt) |
| 2717 | dma_free_coherent(&pcidev->dev, BSG_MBOX_SIZE, |
| 2718 | dmabuf->virt, dmabuf->phys); |
| 2719 | kfree(dmabuf); |
| 2720 | return; |
| 2721 | } |
| 2722 | |
| 2723 | /** |
| 2724 | * lpfc_bsg_dma_page_list_free - free a list of bsg mbox page sized dma buffers |
| 2725 | * @phba: Pointer to HBA context object. |
| 2726 | * @dmabuf_list: Pointer to a list of bsg mbox page sized dma buffer descs. |
| 2727 | * |
| 2728 | * This routine just simply frees all dma buffers and their associated buffer |
| 2729 | * descriptors referred by @dmabuf_list. |
| 2730 | **/ |
| 2731 | static void |
| 2732 | lpfc_bsg_dma_page_list_free(struct lpfc_hba *phba, |
| 2733 | struct list_head *dmabuf_list) |
| 2734 | { |
| 2735 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
| 2736 | |
| 2737 | if (list_empty(dmabuf_list)) |
| 2738 | return; |
| 2739 | |
| 2740 | list_for_each_entry_safe(dmabuf, next_dmabuf, dmabuf_list, list) { |
| 2741 | list_del_init(&dmabuf->list); |
| 2742 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 2743 | } |
| 2744 | return; |
| 2745 | } |
| 2746 | |
| 2747 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2748 | * diag_cmd_data_alloc - fills in a bde struct with dma buffers |
| 2749 | * @phba: Pointer to HBA context object |
| 2750 | * @bpl: Pointer to 64 bit bde structure |
| 2751 | * @size: Number of bytes to process |
| 2752 | * @nocopydata: Flag to copy user data into the allocated buffer |
| 2753 | * |
| 2754 | * This function allocates page size buffers and populates an lpfc_dmabufext. |
| 2755 | * If allowed the user data pointed to with indataptr is copied into the kernel |
| 2756 | * memory. The chained list of page size buffers is returned. |
| 2757 | **/ |
| 2758 | static struct lpfc_dmabufext * |
| 2759 | diag_cmd_data_alloc(struct lpfc_hba *phba, |
| 2760 | struct ulp_bde64 *bpl, uint32_t size, |
| 2761 | int nocopydata) |
| 2762 | { |
| 2763 | struct lpfc_dmabufext *mlist = NULL; |
| 2764 | struct lpfc_dmabufext *dmp; |
| 2765 | int cnt, offset = 0, i = 0; |
| 2766 | struct pci_dev *pcidev; |
| 2767 | |
| 2768 | pcidev = phba->pcidev; |
| 2769 | |
| 2770 | while (size) { |
| 2771 | /* We get chunks of 4K */ |
| 2772 | if (size > BUF_SZ_4K) |
| 2773 | cnt = BUF_SZ_4K; |
| 2774 | else |
| 2775 | cnt = size; |
| 2776 | |
| 2777 | /* allocate struct lpfc_dmabufext buffer header */ |
| 2778 | dmp = kmalloc(sizeof(struct lpfc_dmabufext), GFP_KERNEL); |
| 2779 | if (!dmp) |
| 2780 | goto out; |
| 2781 | |
| 2782 | INIT_LIST_HEAD(&dmp->dma.list); |
| 2783 | |
| 2784 | /* Queue it to a linked list */ |
| 2785 | if (mlist) |
| 2786 | list_add_tail(&dmp->dma.list, &mlist->dma.list); |
| 2787 | else |
| 2788 | mlist = dmp; |
| 2789 | |
| 2790 | /* allocate buffer */ |
| 2791 | dmp->dma.virt = dma_alloc_coherent(&pcidev->dev, |
| 2792 | cnt, |
| 2793 | &(dmp->dma.phys), |
| 2794 | GFP_KERNEL); |
| 2795 | |
| 2796 | if (!dmp->dma.virt) |
| 2797 | goto out; |
| 2798 | |
| 2799 | dmp->size = cnt; |
| 2800 | |
| 2801 | if (nocopydata) { |
| 2802 | bpl->tus.f.bdeFlags = 0; |
| 2803 | pci_dma_sync_single_for_device(phba->pcidev, |
| 2804 | dmp->dma.phys, LPFC_BPL_SIZE, PCI_DMA_TODEVICE); |
| 2805 | |
| 2806 | } else { |
| 2807 | memset((uint8_t *)dmp->dma.virt, 0, cnt); |
| 2808 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; |
| 2809 | } |
| 2810 | |
| 2811 | /* build buffer ptr list for IOCB */ |
| 2812 | bpl->addrLow = le32_to_cpu(putPaddrLow(dmp->dma.phys)); |
| 2813 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dmp->dma.phys)); |
| 2814 | bpl->tus.f.bdeSize = (ushort) cnt; |
| 2815 | bpl->tus.w = le32_to_cpu(bpl->tus.w); |
| 2816 | bpl++; |
| 2817 | |
| 2818 | i++; |
| 2819 | offset += cnt; |
| 2820 | size -= cnt; |
| 2821 | } |
| 2822 | |
James Smart | a2fc4aef | 2014-09-03 12:57:55 -0400 | [diff] [blame] | 2823 | if (mlist) { |
| 2824 | mlist->flag = i; |
| 2825 | return mlist; |
| 2826 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2827 | out: |
| 2828 | diag_cmd_data_free(phba, mlist); |
| 2829 | return NULL; |
| 2830 | } |
| 2831 | |
| 2832 | /** |
| 2833 | * lpfcdiag_loop_post_rxbufs - post the receive buffers for an unsol CT cmd |
| 2834 | * @phba: Pointer to HBA context object |
| 2835 | * @rxxri: Receive exchange id |
| 2836 | * @len: Number of data bytes |
| 2837 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2838 | * 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] | 2839 | * an unsolicted CT command. |
| 2840 | **/ |
| 2841 | static int lpfcdiag_loop_post_rxbufs(struct lpfc_hba *phba, uint16_t rxxri, |
| 2842 | size_t len) |
| 2843 | { |
| 2844 | struct lpfc_sli *psli = &phba->sli; |
| 2845 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_ELS_RING]; |
| 2846 | struct lpfc_iocbq *cmdiocbq; |
| 2847 | IOCB_t *cmd = NULL; |
| 2848 | struct list_head head, *curr, *next; |
| 2849 | struct lpfc_dmabuf *rxbmp; |
| 2850 | struct lpfc_dmabuf *dmp; |
| 2851 | struct lpfc_dmabuf *mp[2] = {NULL, NULL}; |
| 2852 | struct ulp_bde64 *rxbpl = NULL; |
| 2853 | uint32_t num_bde; |
| 2854 | struct lpfc_dmabufext *rxbuffer = NULL; |
| 2855 | int ret_val = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2856 | int iocb_stat; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2857 | int i = 0; |
| 2858 | |
| 2859 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2860 | rxbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 2861 | if (rxbmp != NULL) { |
| 2862 | rxbmp->virt = lpfc_mbuf_alloc(phba, 0, &rxbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 2863 | if (rxbmp->virt) { |
| 2864 | INIT_LIST_HEAD(&rxbmp->list); |
| 2865 | rxbpl = (struct ulp_bde64 *) rxbmp->virt; |
| 2866 | rxbuffer = diag_cmd_data_alloc(phba, rxbpl, len, 0); |
| 2867 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2868 | } |
| 2869 | |
| 2870 | if (!cmdiocbq || !rxbmp || !rxbpl || !rxbuffer) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2871 | ret_val = -ENOMEM; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2872 | goto err_post_rxbufs_exit; |
| 2873 | } |
| 2874 | |
| 2875 | /* Queue buffers for the receive exchange */ |
| 2876 | num_bde = (uint32_t)rxbuffer->flag; |
| 2877 | dmp = &rxbuffer->dma; |
| 2878 | |
| 2879 | cmd = &cmdiocbq->iocb; |
| 2880 | i = 0; |
| 2881 | |
| 2882 | INIT_LIST_HEAD(&head); |
| 2883 | list_add_tail(&head, &dmp->list); |
| 2884 | list_for_each_safe(curr, next, &head) { |
| 2885 | mp[i] = list_entry(curr, struct lpfc_dmabuf, list); |
| 2886 | list_del(curr); |
| 2887 | |
| 2888 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
| 2889 | mp[i]->buffer_tag = lpfc_sli_get_buffer_tag(phba); |
| 2890 | cmd->un.quexri64cx.buff.bde.addrHigh = |
| 2891 | putPaddrHigh(mp[i]->phys); |
| 2892 | cmd->un.quexri64cx.buff.bde.addrLow = |
| 2893 | putPaddrLow(mp[i]->phys); |
| 2894 | cmd->un.quexri64cx.buff.bde.tus.f.bdeSize = |
| 2895 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2896 | cmd->un.quexri64cx.buff.buffer_tag = mp[i]->buffer_tag; |
| 2897 | cmd->ulpCommand = CMD_QUE_XRI64_CX; |
| 2898 | cmd->ulpPU = 0; |
| 2899 | cmd->ulpLe = 1; |
| 2900 | cmd->ulpBdeCount = 1; |
| 2901 | cmd->unsli3.que_xri64cx_ext_words.ebde_count = 0; |
| 2902 | |
| 2903 | } else { |
| 2904 | cmd->un.cont64[i].addrHigh = putPaddrHigh(mp[i]->phys); |
| 2905 | cmd->un.cont64[i].addrLow = putPaddrLow(mp[i]->phys); |
| 2906 | cmd->un.cont64[i].tus.f.bdeSize = |
| 2907 | ((struct lpfc_dmabufext *)mp[i])->size; |
| 2908 | cmd->ulpBdeCount = ++i; |
| 2909 | |
| 2910 | if ((--num_bde > 0) && (i < 2)) |
| 2911 | continue; |
| 2912 | |
| 2913 | cmd->ulpCommand = CMD_QUE_XRI_BUF64_CX; |
| 2914 | cmd->ulpLe = 1; |
| 2915 | } |
| 2916 | |
| 2917 | cmd->ulpClass = CLASS3; |
| 2918 | cmd->ulpContext = rxxri; |
| 2919 | |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2920 | iocb_stat = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 2921 | 0); |
| 2922 | if (iocb_stat == IOCB_ERROR) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2923 | diag_cmd_data_free(phba, |
| 2924 | (struct lpfc_dmabufext *)mp[0]); |
| 2925 | if (mp[1]) |
| 2926 | diag_cmd_data_free(phba, |
| 2927 | (struct lpfc_dmabufext *)mp[1]); |
| 2928 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2929 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2930 | goto err_post_rxbufs_exit; |
| 2931 | } |
| 2932 | |
| 2933 | lpfc_sli_ringpostbuf_put(phba, pring, mp[0]); |
| 2934 | if (mp[1]) { |
| 2935 | lpfc_sli_ringpostbuf_put(phba, pring, mp[1]); |
| 2936 | mp[1] = NULL; |
| 2937 | } |
| 2938 | |
| 2939 | /* The iocb was freed by lpfc_sli_issue_iocb */ |
| 2940 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 2941 | if (!cmdiocbq) { |
| 2942 | dmp = list_entry(next, struct lpfc_dmabuf, list); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 2943 | ret_val = -EIO; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2944 | goto err_post_rxbufs_exit; |
| 2945 | } |
| 2946 | |
| 2947 | cmd = &cmdiocbq->iocb; |
| 2948 | i = 0; |
| 2949 | } |
| 2950 | list_del(&head); |
| 2951 | |
| 2952 | err_post_rxbufs_exit: |
| 2953 | |
| 2954 | if (rxbmp) { |
| 2955 | if (rxbmp->virt) |
| 2956 | lpfc_mbuf_free(phba, rxbmp->virt, rxbmp->phys); |
| 2957 | kfree(rxbmp); |
| 2958 | } |
| 2959 | |
| 2960 | if (cmdiocbq) |
| 2961 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 2962 | return ret_val; |
| 2963 | } |
| 2964 | |
| 2965 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2966 | * 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] | 2967 | * @job: LPFC_BSG_VENDOR_DIAG_TEST fc_bsg_job |
| 2968 | * |
| 2969 | * This function receives a user data buffer to be transmitted and received on |
| 2970 | * the same port, the link must be up and in loopback mode prior |
| 2971 | * to being called. |
| 2972 | * 1. A kernel buffer is allocated to copy the user data into. |
| 2973 | * 2. The port registers with "itself". |
| 2974 | * 3. The transmit and receive exchange ids are obtained. |
| 2975 | * 4. The receive exchange id is posted. |
| 2976 | * 5. A new els loopback event is created. |
| 2977 | * 6. The command and response iocbs are allocated. |
| 2978 | * 7. The cmd iocb FsType is set to elx loopback and the CmdRsp to looppback. |
| 2979 | * |
| 2980 | * This function is meant to be called n times while the port is in loopback |
| 2981 | * so it is the apps responsibility to issue a reset to take the port out |
| 2982 | * of loopback mode. |
| 2983 | **/ |
| 2984 | static int |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 2985 | lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2986 | { |
| 2987 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 2988 | struct lpfc_hba *phba = vport->phba; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2989 | struct lpfc_bsg_event *evt; |
| 2990 | struct event_data *evdat; |
| 2991 | struct lpfc_sli *psli = &phba->sli; |
| 2992 | uint32_t size; |
| 2993 | uint32_t full_size; |
| 2994 | size_t segment_len = 0, segment_offset = 0, current_offset = 0; |
James Smart | 4042629 | 2010-12-15 17:58:10 -0500 | [diff] [blame] | 2995 | uint16_t rpi = 0; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 2996 | struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL; |
| 2997 | IOCB_t *cmd, *rsp = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 2998 | struct lpfc_sli_ct_request *ctreq; |
| 2999 | struct lpfc_dmabuf *txbmp; |
| 3000 | struct ulp_bde64 *txbpl = NULL; |
| 3001 | struct lpfc_dmabufext *txbuffer = NULL; |
| 3002 | struct list_head head; |
| 3003 | struct lpfc_dmabuf *curr; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3004 | uint16_t txxri = 0, rxxri; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3005 | uint32_t num_bde; |
| 3006 | uint8_t *ptr = NULL, *rx_databuf = NULL; |
| 3007 | int rc = 0; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 3008 | int time_left; |
James Smart | 5a0916b | 2013-07-15 18:31:42 -0400 | [diff] [blame] | 3009 | int iocb_stat = IOCB_SUCCESS; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3010 | unsigned long flags; |
| 3011 | void *dataout = NULL; |
| 3012 | uint32_t total_mem; |
| 3013 | |
| 3014 | /* in case no data is returned return just the return code */ |
| 3015 | job->reply->reply_payload_rcv_len = 0; |
| 3016 | |
| 3017 | if (job->request_len < |
| 3018 | sizeof(struct fc_bsg_request) + sizeof(struct diag_mode_test)) { |
| 3019 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3020 | "2739 Received DIAG TEST request below minimum " |
| 3021 | "size\n"); |
| 3022 | rc = -EINVAL; |
| 3023 | goto loopback_test_exit; |
| 3024 | } |
| 3025 | |
| 3026 | if (job->request_payload.payload_len != |
| 3027 | job->reply_payload.payload_len) { |
| 3028 | rc = -EINVAL; |
| 3029 | goto loopback_test_exit; |
| 3030 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3031 | |
| 3032 | if ((phba->link_state == LPFC_HBA_ERROR) || |
| 3033 | (psli->sli_flag & LPFC_BLOCK_MGMT_IO) || |
| 3034 | (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { |
| 3035 | rc = -EACCES; |
| 3036 | goto loopback_test_exit; |
| 3037 | } |
| 3038 | |
| 3039 | if (!lpfc_is_link_up(phba) || !(phba->link_flag & LS_LOOPBACK_MODE)) { |
| 3040 | rc = -EACCES; |
| 3041 | goto loopback_test_exit; |
| 3042 | } |
| 3043 | |
| 3044 | size = job->request_payload.payload_len; |
| 3045 | full_size = size + ELX_LOOPBACK_HEADER_SZ; /* plus the header */ |
| 3046 | |
| 3047 | if ((size == 0) || (size > 80 * BUF_SZ_4K)) { |
| 3048 | rc = -ERANGE; |
| 3049 | goto loopback_test_exit; |
| 3050 | } |
| 3051 | |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 3052 | if (full_size >= BUF_SZ_4K) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3053 | /* |
| 3054 | * Allocate memory for ioctl data. If buffer is bigger than 64k, |
| 3055 | * then we allocate 64k and re-use that buffer over and over to |
| 3056 | * xfer the whole block. This is because Linux kernel has a |
| 3057 | * problem allocating more than 120k of kernel space memory. Saw |
| 3058 | * problem with GET_FCPTARGETMAPPING... |
| 3059 | */ |
| 3060 | if (size <= (64 * 1024)) |
James Smart | 63e801c | 2010-11-20 23:14:19 -0500 | [diff] [blame] | 3061 | total_mem = full_size; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3062 | else |
| 3063 | total_mem = 64 * 1024; |
| 3064 | } else |
| 3065 | /* Allocate memory for ioctl data */ |
| 3066 | total_mem = BUF_SZ_4K; |
| 3067 | |
| 3068 | dataout = kmalloc(total_mem, GFP_KERNEL); |
| 3069 | if (dataout == NULL) { |
| 3070 | rc = -ENOMEM; |
| 3071 | goto loopback_test_exit; |
| 3072 | } |
| 3073 | |
| 3074 | ptr = dataout; |
| 3075 | ptr += ELX_LOOPBACK_HEADER_SZ; |
| 3076 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 3077 | job->request_payload.sg_cnt, |
| 3078 | ptr, size); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3079 | rc = lpfcdiag_loop_self_reg(phba, &rpi); |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 3080 | if (rc) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3081 | goto loopback_test_exit; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3082 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3083 | if (phba->sli_rev < LPFC_SLI_REV4) { |
| 3084 | rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri); |
| 3085 | if (rc) { |
| 3086 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 3087 | goto loopback_test_exit; |
| 3088 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3089 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3090 | rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size); |
| 3091 | if (rc) { |
| 3092 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 3093 | goto loopback_test_exit; |
| 3094 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3095 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3096 | evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid, |
| 3097 | SLI_CT_ELX_LOOPBACK); |
| 3098 | if (!evt) { |
| 3099 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 3100 | rc = -ENOMEM; |
| 3101 | goto loopback_test_exit; |
| 3102 | } |
| 3103 | |
| 3104 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3105 | list_add(&evt->node, &phba->ct_ev_waiters); |
| 3106 | lpfc_bsg_event_ref(evt); |
| 3107 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3108 | |
| 3109 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3110 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 3111 | rspiocbq = lpfc_sli_get_iocbq(phba); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3112 | txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 3113 | |
| 3114 | if (txbmp) { |
| 3115 | txbmp->virt = lpfc_mbuf_alloc(phba, 0, &txbmp->phys); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 3116 | if (txbmp->virt) { |
| 3117 | INIT_LIST_HEAD(&txbmp->list); |
| 3118 | txbpl = (struct ulp_bde64 *) txbmp->virt; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3119 | txbuffer = diag_cmd_data_alloc(phba, |
| 3120 | txbpl, full_size, 0); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 3121 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3122 | } |
| 3123 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3124 | if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) { |
| 3125 | rc = -ENOMEM; |
| 3126 | goto err_loopback_test_exit; |
| 3127 | } |
| 3128 | if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3129 | rc = -ENOMEM; |
| 3130 | goto err_loopback_test_exit; |
| 3131 | } |
| 3132 | |
| 3133 | cmd = &cmdiocbq->iocb; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3134 | if (phba->sli_rev < LPFC_SLI_REV4) |
| 3135 | rsp = &rspiocbq->iocb; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3136 | |
| 3137 | INIT_LIST_HEAD(&head); |
| 3138 | list_add_tail(&head, &txbuffer->dma.list); |
| 3139 | list_for_each_entry(curr, &head, list) { |
| 3140 | segment_len = ((struct lpfc_dmabufext *)curr)->size; |
| 3141 | if (current_offset == 0) { |
| 3142 | ctreq = curr->virt; |
| 3143 | memset(ctreq, 0, ELX_LOOPBACK_HEADER_SZ); |
| 3144 | ctreq->RevisionId.bits.Revision = SLI_CT_REVISION; |
| 3145 | ctreq->RevisionId.bits.InId = 0; |
| 3146 | ctreq->FsType = SLI_CT_ELX_LOOPBACK; |
| 3147 | ctreq->FsSubType = 0; |
| 3148 | ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA; |
| 3149 | ctreq->CommandResponse.bits.Size = size; |
| 3150 | segment_offset = ELX_LOOPBACK_HEADER_SZ; |
| 3151 | } else |
| 3152 | segment_offset = 0; |
| 3153 | |
| 3154 | BUG_ON(segment_offset >= segment_len); |
| 3155 | memcpy(curr->virt + segment_offset, |
| 3156 | ptr + current_offset, |
| 3157 | segment_len - segment_offset); |
| 3158 | |
| 3159 | current_offset += segment_len - segment_offset; |
| 3160 | BUG_ON(current_offset > size); |
| 3161 | } |
| 3162 | list_del(&head); |
| 3163 | |
| 3164 | /* Build the XMIT_SEQUENCE iocb */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3165 | num_bde = (uint32_t)txbuffer->flag; |
| 3166 | |
| 3167 | cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys); |
| 3168 | cmd->un.xseq64.bdl.addrLow = putPaddrLow(txbmp->phys); |
| 3169 | cmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 3170 | cmd->un.xseq64.bdl.bdeSize = (num_bde * sizeof(struct ulp_bde64)); |
| 3171 | |
| 3172 | cmd->un.xseq64.w5.hcsw.Fctl = (LS | LA); |
| 3173 | cmd->un.xseq64.w5.hcsw.Dfctl = 0; |
| 3174 | cmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CTL; |
| 3175 | cmd->un.xseq64.w5.hcsw.Type = FC_TYPE_CT; |
| 3176 | |
| 3177 | cmd->ulpCommand = CMD_XMIT_SEQUENCE64_CX; |
| 3178 | cmd->ulpBdeCount = 1; |
| 3179 | cmd->ulpLe = 1; |
| 3180 | cmd->ulpClass = CLASS3; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3181 | |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3182 | if (phba->sli_rev < LPFC_SLI_REV4) { |
| 3183 | cmd->ulpContext = txxri; |
| 3184 | } else { |
| 3185 | cmd->un.xseq64.bdl.ulpIoTag32 = 0; |
| 3186 | cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi]; |
| 3187 | cmdiocbq->context3 = txbmp; |
| 3188 | cmdiocbq->sli4_xritag = NO_XRI; |
| 3189 | cmd->unsli3.rcvsli3.ox_id = 0xffff; |
| 3190 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3191 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
James Smart | 6c7cf48 | 2015-04-07 15:07:25 -0400 | [diff] [blame] | 3192 | cmdiocbq->iocb_flag |= LPFC_IO_LOOPBACK; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3193 | cmdiocbq->vport = phba->pport; |
James Smart | 5a0916b | 2013-07-15 18:31:42 -0400 | [diff] [blame] | 3194 | cmdiocbq->iocb_cmpl = NULL; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 3195 | iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq, |
| 3196 | rspiocbq, (phba->fc_ratov * 2) + |
| 3197 | LPFC_DRVR_TIMEOUT); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3198 | |
James Smart | 53151bb | 2013-10-10 12:24:07 -0400 | [diff] [blame] | 3199 | if ((iocb_stat != IOCB_SUCCESS) || |
| 3200 | ((phba->sli_rev < LPFC_SLI_REV4) && |
| 3201 | (rsp->ulpStatus != IOSTAT_SUCCESS))) { |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3202 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3203 | "3126 Failed loopback test issue iocb: " |
| 3204 | "iocb_stat:x%x\n", iocb_stat); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3205 | rc = -EIO; |
| 3206 | goto err_loopback_test_exit; |
| 3207 | } |
| 3208 | |
| 3209 | evt->waiting = 1; |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 3210 | time_left = wait_event_interruptible_timeout( |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3211 | evt->wq, !list_empty(&evt->events_to_see), |
James Smart | 256ec0d | 2013-04-17 20:14:58 -0400 | [diff] [blame] | 3212 | msecs_to_jiffies(1000 * |
| 3213 | ((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT))); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3214 | evt->waiting = 0; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3215 | if (list_empty(&evt->events_to_see)) { |
James Smart | d439d28 | 2010-09-29 11:18:45 -0400 | [diff] [blame] | 3216 | rc = (time_left) ? -EINTR : -ETIMEDOUT; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3217 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3218 | "3125 Not receiving unsolicited event, " |
| 3219 | "rc:x%x\n", rc); |
| 3220 | } else { |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3221 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3222 | list_move(evt->events_to_see.prev, &evt->events_to_get); |
| 3223 | evdat = list_entry(evt->events_to_get.prev, |
| 3224 | typeof(*evdat), node); |
| 3225 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3226 | rx_databuf = evdat->data; |
| 3227 | if (evdat->len != full_size) { |
| 3228 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3229 | "1603 Loopback test did not receive expected " |
| 3230 | "data length. actual length 0x%x expected " |
| 3231 | "length 0x%x\n", |
| 3232 | evdat->len, full_size); |
| 3233 | rc = -EIO; |
| 3234 | } else if (rx_databuf == NULL) |
| 3235 | rc = -EIO; |
| 3236 | else { |
| 3237 | rc = IOCB_SUCCESS; |
| 3238 | /* skip over elx loopback header */ |
| 3239 | rx_databuf += ELX_LOOPBACK_HEADER_SZ; |
| 3240 | job->reply->reply_payload_rcv_len = |
| 3241 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 3242 | job->reply_payload.sg_cnt, |
| 3243 | rx_databuf, size); |
| 3244 | job->reply->reply_payload_rcv_len = size; |
| 3245 | } |
| 3246 | } |
| 3247 | |
| 3248 | err_loopback_test_exit: |
| 3249 | lpfcdiag_loop_self_unreg(phba, rpi); |
| 3250 | |
| 3251 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3252 | lpfc_bsg_event_unref(evt); /* release ref */ |
| 3253 | lpfc_bsg_event_unref(evt); /* delete */ |
| 3254 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3255 | |
James Smart | 5a0916b | 2013-07-15 18:31:42 -0400 | [diff] [blame] | 3256 | if ((cmdiocbq != NULL) && (iocb_stat != IOCB_TIMEDOUT)) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3257 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
| 3258 | |
| 3259 | if (rspiocbq != NULL) |
| 3260 | lpfc_sli_release_iocbq(phba, rspiocbq); |
| 3261 | |
| 3262 | if (txbmp != NULL) { |
| 3263 | if (txbpl != NULL) { |
| 3264 | if (txbuffer != NULL) |
| 3265 | diag_cmd_data_free(phba, txbuffer); |
| 3266 | lpfc_mbuf_free(phba, txbmp->virt, txbmp->phys); |
| 3267 | } |
| 3268 | kfree(txbmp); |
| 3269 | } |
| 3270 | |
| 3271 | loopback_test_exit: |
| 3272 | kfree(dataout); |
| 3273 | /* make error code available to userspace */ |
| 3274 | job->reply->result = rc; |
| 3275 | job->dd_data = NULL; |
| 3276 | /* complete the job back to userspace if no error */ |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3277 | if (rc == IOCB_SUCCESS) |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3278 | job->job_done(job); |
| 3279 | return rc; |
| 3280 | } |
| 3281 | |
| 3282 | /** |
| 3283 | * lpfc_bsg_get_dfc_rev - process a GET_DFC_REV bsg vendor command |
| 3284 | * @job: GET_DFC_REV fc_bsg_job |
| 3285 | **/ |
| 3286 | static int |
| 3287 | lpfc_bsg_get_dfc_rev(struct fc_bsg_job *job) |
| 3288 | { |
| 3289 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 3290 | struct lpfc_hba *phba = vport->phba; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3291 | struct get_mgmt_rev_reply *event_reply; |
| 3292 | int rc = 0; |
| 3293 | |
| 3294 | if (job->request_len < |
| 3295 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev)) { |
| 3296 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3297 | "2740 Received GET_DFC_REV request below " |
| 3298 | "minimum size\n"); |
| 3299 | rc = -EINVAL; |
| 3300 | goto job_error; |
| 3301 | } |
| 3302 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3303 | event_reply = (struct get_mgmt_rev_reply *) |
| 3304 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 3305 | |
| 3306 | if (job->reply_len < |
| 3307 | sizeof(struct fc_bsg_request) + sizeof(struct get_mgmt_rev_reply)) { |
| 3308 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3309 | "2741 Received GET_DFC_REV reply below " |
| 3310 | "minimum size\n"); |
| 3311 | rc = -EINVAL; |
| 3312 | goto job_error; |
| 3313 | } |
| 3314 | |
| 3315 | event_reply->info.a_Major = MANAGEMENT_MAJOR_REV; |
| 3316 | event_reply->info.a_Minor = MANAGEMENT_MINOR_REV; |
| 3317 | job_error: |
| 3318 | job->reply->result = rc; |
| 3319 | if (rc == 0) |
| 3320 | job->job_done(job); |
| 3321 | return rc; |
| 3322 | } |
| 3323 | |
| 3324 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3325 | * lpfc_bsg_issue_mbox_cmpl - lpfc_bsg_issue_mbox mbox completion handler |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3326 | * @phba: Pointer to HBA context object. |
| 3327 | * @pmboxq: Pointer to mailbox command. |
| 3328 | * |
| 3329 | * This is completion handler function for mailbox commands issued from |
| 3330 | * lpfc_bsg_issue_mbox function. This function is called by the |
| 3331 | * mailbox event handler function with no lock held. This function |
| 3332 | * will wake up thread waiting on the wait queue pointed by context1 |
| 3333 | * of the mailbox. |
| 3334 | **/ |
Rashika Kheria | 9ab9b13 | 2014-09-03 12:55:46 -0400 | [diff] [blame] | 3335 | static void |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3336 | 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] | 3337 | { |
| 3338 | struct bsg_job_data *dd_data; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3339 | struct fc_bsg_job *job; |
| 3340 | uint32_t size; |
| 3341 | unsigned long flags; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3342 | uint8_t *pmb, *pmb_buf; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3343 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3344 | dd_data = pmboxq->context1; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3345 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3346 | /* |
| 3347 | * The outgoing buffer is readily referred from the dma buffer, |
| 3348 | * just need to get header part from mailboxq structure. |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3349 | */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3350 | pmb = (uint8_t *)&pmboxq->u.mb; |
| 3351 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; |
| 3352 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 3353 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3354 | /* Determine if job has been aborted */ |
| 3355 | |
| 3356 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3357 | job = dd_data->set_job; |
| 3358 | if (job) { |
| 3359 | /* Prevent timeout handling from trying to abort job */ |
| 3360 | job->dd_data = NULL; |
| 3361 | } |
| 3362 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 3363 | |
| 3364 | /* Copy the mailbox data to the job if it is still active */ |
| 3365 | |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 3366 | if (job) { |
| 3367 | size = job->reply_payload.payload_len; |
| 3368 | job->reply->reply_payload_rcv_len = |
| 3369 | sg_copy_from_buffer(job->reply_payload.sg_list, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3370 | job->reply_payload.sg_cnt, |
| 3371 | pmb_buf, size); |
James Smart | 5a6f133 | 2011-03-11 16:05:35 -0500 | [diff] [blame] | 3372 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3373 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3374 | dd_data->set_job = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3375 | mempool_free(dd_data->context_un.mbox.pmboxq, phba->mbox_mem_pool); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3376 | lpfc_bsg_dma_page_free(phba, dd_data->context_un.mbox.dmabuffers); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3377 | kfree(dd_data); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3378 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3379 | /* Complete the job if the job is still active */ |
| 3380 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3381 | if (job) { |
| 3382 | job->reply->result = 0; |
| 3383 | job->job_done(job); |
| 3384 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3385 | return; |
| 3386 | } |
| 3387 | |
| 3388 | /** |
| 3389 | * lpfc_bsg_check_cmd_access - test for a supported mailbox command |
| 3390 | * @phba: Pointer to HBA context object. |
| 3391 | * @mb: Pointer to a mailbox object. |
| 3392 | * @vport: Pointer to a vport object. |
| 3393 | * |
| 3394 | * Some commands require the port to be offline, some may not be called from |
| 3395 | * the application. |
| 3396 | **/ |
| 3397 | static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba, |
| 3398 | MAILBOX_t *mb, struct lpfc_vport *vport) |
| 3399 | { |
| 3400 | /* return negative error values for bsg job */ |
| 3401 | switch (mb->mbxCommand) { |
| 3402 | /* Offline only */ |
| 3403 | case MBX_INIT_LINK: |
| 3404 | case MBX_DOWN_LINK: |
| 3405 | case MBX_CONFIG_LINK: |
| 3406 | case MBX_CONFIG_RING: |
| 3407 | case MBX_RESET_RING: |
| 3408 | case MBX_UNREG_LOGIN: |
| 3409 | case MBX_CLEAR_LA: |
| 3410 | case MBX_DUMP_CONTEXT: |
| 3411 | case MBX_RUN_DIAGS: |
| 3412 | case MBX_RESTART: |
| 3413 | case MBX_SET_MASK: |
| 3414 | if (!(vport->fc_flag & FC_OFFLINE_MODE)) { |
| 3415 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3416 | "2743 Command 0x%x is illegal in on-line " |
| 3417 | "state\n", |
| 3418 | mb->mbxCommand); |
| 3419 | return -EPERM; |
| 3420 | } |
| 3421 | case MBX_WRITE_NV: |
| 3422 | case MBX_WRITE_VPARMS: |
| 3423 | case MBX_LOAD_SM: |
| 3424 | case MBX_READ_NV: |
| 3425 | case MBX_READ_CONFIG: |
| 3426 | case MBX_READ_RCONFIG: |
| 3427 | case MBX_READ_STATUS: |
| 3428 | case MBX_READ_XRI: |
| 3429 | case MBX_READ_REV: |
| 3430 | case MBX_READ_LNK_STAT: |
| 3431 | case MBX_DUMP_MEMORY: |
| 3432 | case MBX_DOWN_LOAD: |
| 3433 | case MBX_UPDATE_CFG: |
| 3434 | case MBX_KILL_BOARD: |
James Smart | 06f3555 | 2013-05-31 17:04:50 -0400 | [diff] [blame] | 3435 | case MBX_READ_TOPOLOGY: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3436 | case MBX_LOAD_AREA: |
| 3437 | case MBX_LOAD_EXP_ROM: |
| 3438 | case MBX_BEACON: |
| 3439 | case MBX_DEL_LD_ENTRY: |
| 3440 | case MBX_SET_DEBUG: |
| 3441 | case MBX_WRITE_WWN: |
| 3442 | case MBX_SLI4_CONFIG: |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 3443 | case MBX_READ_EVENT_LOG: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3444 | case MBX_READ_EVENT_LOG_STATUS: |
| 3445 | case MBX_WRITE_EVENT_LOG: |
| 3446 | case MBX_PORT_CAPABILITIES: |
| 3447 | case MBX_PORT_IOV_CONTROL: |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 3448 | case MBX_RUN_BIU_DIAG64: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3449 | break; |
| 3450 | case MBX_SET_VARIABLE: |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3451 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
| 3452 | "1226 mbox: set_variable 0x%x, 0x%x\n", |
| 3453 | mb->un.varWords[0], |
| 3454 | mb->un.varWords[1]); |
| 3455 | if ((mb->un.varWords[0] == SETVAR_MLOMNT) |
| 3456 | && (mb->un.varWords[1] == 1)) { |
| 3457 | phba->wait_4_mlo_maint_flg = 1; |
| 3458 | } else if (mb->un.varWords[0] == SETVAR_MLORST) { |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3459 | spin_lock_irq(&phba->hbalock); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3460 | phba->link_flag &= ~LS_LOOPBACK_MODE; |
James Smart | 1b51197 | 2011-12-13 13:23:09 -0500 | [diff] [blame] | 3461 | spin_unlock_irq(&phba->hbalock); |
James Smart | 76a95d7 | 2010-11-20 23:11:48 -0500 | [diff] [blame] | 3462 | phba->fc_topology = LPFC_TOPOLOGY_PT_PT; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 3463 | } |
| 3464 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3465 | case MBX_READ_SPARM64: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 3466 | case MBX_REG_LOGIN: |
| 3467 | case MBX_REG_LOGIN64: |
| 3468 | case MBX_CONFIG_PORT: |
| 3469 | case MBX_RUN_BIU_DIAG: |
| 3470 | default: |
| 3471 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 3472 | "2742 Unknown Command 0x%x\n", |
| 3473 | mb->mbxCommand); |
| 3474 | return -EPERM; |
| 3475 | } |
| 3476 | |
| 3477 | return 0; /* ok */ |
| 3478 | } |
| 3479 | |
| 3480 | /** |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3481 | * lpfc_bsg_mbox_ext_cleanup - clean up context of multi-buffer mbox session |
| 3482 | * @phba: Pointer to HBA context object. |
| 3483 | * |
| 3484 | * This is routine clean up and reset BSG handling of multi-buffer mbox |
| 3485 | * command session. |
| 3486 | **/ |
| 3487 | static void |
| 3488 | lpfc_bsg_mbox_ext_session_reset(struct lpfc_hba *phba) |
| 3489 | { |
| 3490 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) |
| 3491 | return; |
| 3492 | |
| 3493 | /* free all memory, including dma buffers */ |
| 3494 | lpfc_bsg_dma_page_list_free(phba, |
| 3495 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3496 | lpfc_bsg_dma_page_free(phba, phba->mbox_ext_buf_ctx.mbx_dmabuf); |
| 3497 | /* multi-buffer write mailbox command pass-through complete */ |
| 3498 | memset((char *)&phba->mbox_ext_buf_ctx, 0, |
| 3499 | sizeof(struct lpfc_mbox_ext_buf_ctx)); |
| 3500 | INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3501 | |
| 3502 | return; |
| 3503 | } |
| 3504 | |
| 3505 | /** |
| 3506 | * lpfc_bsg_issue_mbox_ext_handle_job - job handler for multi-buffer mbox cmpl |
| 3507 | * @phba: Pointer to HBA context object. |
| 3508 | * @pmboxq: Pointer to mailbox command. |
| 3509 | * |
| 3510 | * This is routine handles BSG job for mailbox commands completions with |
| 3511 | * multiple external buffers. |
| 3512 | **/ |
| 3513 | static struct fc_bsg_job * |
| 3514 | lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3515 | { |
| 3516 | struct bsg_job_data *dd_data; |
| 3517 | struct fc_bsg_job *job; |
| 3518 | uint8_t *pmb, *pmb_buf; |
| 3519 | unsigned long flags; |
| 3520 | uint32_t size; |
| 3521 | int rc = 0; |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 3522 | struct lpfc_dmabuf *dmabuf; |
| 3523 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3524 | uint8_t *pmbx; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3525 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3526 | dd_data = pmboxq->context1; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3527 | |
| 3528 | /* Determine if job has been aborted */ |
| 3529 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 3530 | job = dd_data->set_job; |
| 3531 | if (job) { |
| 3532 | /* Prevent timeout handling from trying to abort job */ |
| 3533 | job->dd_data = NULL; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3534 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3535 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3536 | |
| 3537 | /* |
| 3538 | * The outgoing buffer is readily referred from the dma buffer, |
| 3539 | * just need to get header part from mailboxq structure. |
| 3540 | */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3541 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3542 | pmb = (uint8_t *)&pmboxq->u.mb; |
| 3543 | pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb; |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 3544 | /* Copy the byte swapped response mailbox back to the user */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3545 | memcpy(pmb_buf, pmb, sizeof(MAILBOX_t)); |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 3546 | /* if there is any non-embedded extended data copy that too */ |
| 3547 | dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf; |
| 3548 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3549 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, |
| 3550 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { |
| 3551 | pmbx = (uint8_t *)dmabuf->virt; |
| 3552 | /* byte swap the extended data following the mailbox command */ |
| 3553 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], |
| 3554 | &pmbx[sizeof(MAILBOX_t)], |
| 3555 | sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len); |
| 3556 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3557 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3558 | /* Complete the job if the job is still active */ |
| 3559 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3560 | if (job) { |
| 3561 | size = job->reply_payload.payload_len; |
| 3562 | job->reply->reply_payload_rcv_len = |
| 3563 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 3564 | job->reply_payload.sg_cnt, |
| 3565 | pmb_buf, size); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3566 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3567 | /* result for successful */ |
| 3568 | job->reply->result = 0; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3569 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3570 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3571 | "2937 SLI_CONFIG ext-buffer maibox command " |
| 3572 | "(x%x/x%x) complete bsg job done, bsize:%d\n", |
| 3573 | phba->mbox_ext_buf_ctx.nembType, |
| 3574 | phba->mbox_ext_buf_ctx.mboxType, size); |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3575 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, |
| 3576 | phba->mbox_ext_buf_ctx.nembType, |
| 3577 | phba->mbox_ext_buf_ctx.mboxType, |
| 3578 | dma_ebuf, sta_pos_addr, |
| 3579 | phba->mbox_ext_buf_ctx.mbx_dmabuf, 0); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3580 | } else { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3581 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3582 | "2938 SLI_CONFIG ext-buffer maibox " |
| 3583 | "command (x%x/x%x) failure, rc:x%x\n", |
| 3584 | phba->mbox_ext_buf_ctx.nembType, |
| 3585 | phba->mbox_ext_buf_ctx.mboxType, rc); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3586 | } |
| 3587 | |
| 3588 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3589 | /* state change */ |
| 3590 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_DONE; |
| 3591 | kfree(dd_data); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3592 | return job; |
| 3593 | } |
| 3594 | |
| 3595 | /** |
| 3596 | * lpfc_bsg_issue_read_mbox_ext_cmpl - compl handler for multi-buffer read mbox |
| 3597 | * @phba: Pointer to HBA context object. |
| 3598 | * @pmboxq: Pointer to mailbox command. |
| 3599 | * |
| 3600 | * This is completion handler function for mailbox read commands with multiple |
| 3601 | * external buffers. |
| 3602 | **/ |
| 3603 | static void |
| 3604 | lpfc_bsg_issue_read_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3605 | { |
| 3606 | struct fc_bsg_job *job; |
| 3607 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3608 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
| 3609 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3610 | /* handle the BSG job with mailbox command */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3611 | if (!job) |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3612 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
| 3613 | |
| 3614 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3615 | "2939 SLI_CONFIG ext-buffer rd maibox command " |
| 3616 | "complete, ctxState:x%x, mbxStatus:x%x\n", |
| 3617 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); |
| 3618 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3619 | if (pmboxq->u.mb.mbxStatus || phba->mbox_ext_buf_ctx.numBuf == 1) |
| 3620 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3621 | |
| 3622 | /* free base driver mailbox structure memory */ |
| 3623 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3624 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3625 | /* if the job is still active, call job done */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3626 | if (job) |
| 3627 | job->job_done(job); |
| 3628 | |
| 3629 | return; |
| 3630 | } |
| 3631 | |
| 3632 | /** |
| 3633 | * lpfc_bsg_issue_write_mbox_ext_cmpl - cmpl handler for multi-buffer write mbox |
| 3634 | * @phba: Pointer to HBA context object. |
| 3635 | * @pmboxq: Pointer to mailbox command. |
| 3636 | * |
| 3637 | * This is completion handler function for mailbox write commands with multiple |
| 3638 | * external buffers. |
| 3639 | **/ |
| 3640 | static void |
| 3641 | lpfc_bsg_issue_write_mbox_ext_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
| 3642 | { |
| 3643 | struct fc_bsg_job *job; |
| 3644 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3645 | job = lpfc_bsg_issue_mbox_ext_handle_job(phba, pmboxq); |
| 3646 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3647 | /* handle the BSG job with the mailbox command */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3648 | if (!job) |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3649 | pmboxq->u.mb.mbxStatus = MBXERR_ERROR; |
| 3650 | |
| 3651 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3652 | "2940 SLI_CONFIG ext-buffer wr maibox command " |
| 3653 | "complete, ctxState:x%x, mbxStatus:x%x\n", |
| 3654 | phba->mbox_ext_buf_ctx.state, pmboxq->u.mb.mbxStatus); |
| 3655 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3656 | /* free all memory, including dma buffers */ |
| 3657 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3658 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 3659 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3660 | /* if the job is still active, call job done */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3661 | if (job) |
| 3662 | job->job_done(job); |
| 3663 | |
| 3664 | return; |
| 3665 | } |
| 3666 | |
| 3667 | static void |
| 3668 | lpfc_bsg_sli_cfg_dma_desc_setup(struct lpfc_hba *phba, enum nemb_type nemb_tp, |
| 3669 | uint32_t index, struct lpfc_dmabuf *mbx_dmabuf, |
| 3670 | struct lpfc_dmabuf *ext_dmabuf) |
| 3671 | { |
| 3672 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3673 | |
| 3674 | /* pointer to the start of mailbox command */ |
| 3675 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)mbx_dmabuf->virt; |
| 3676 | |
| 3677 | if (nemb_tp == nemb_mse) { |
| 3678 | if (index == 0) { |
| 3679 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3680 | mse[index].pa_hi = |
| 3681 | putPaddrHigh(mbx_dmabuf->phys + |
| 3682 | sizeof(MAILBOX_t)); |
| 3683 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3684 | mse[index].pa_lo = |
| 3685 | putPaddrLow(mbx_dmabuf->phys + |
| 3686 | sizeof(MAILBOX_t)); |
| 3687 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3688 | "2943 SLI_CONFIG(mse)[%d], " |
| 3689 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3690 | index, |
| 3691 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3692 | mse[index].buf_len, |
| 3693 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3694 | mse[index].pa_hi, |
| 3695 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3696 | mse[index].pa_lo); |
| 3697 | } else { |
| 3698 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3699 | mse[index].pa_hi = |
| 3700 | putPaddrHigh(ext_dmabuf->phys); |
| 3701 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3702 | mse[index].pa_lo = |
| 3703 | putPaddrLow(ext_dmabuf->phys); |
| 3704 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3705 | "2944 SLI_CONFIG(mse)[%d], " |
| 3706 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3707 | index, |
| 3708 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3709 | mse[index].buf_len, |
| 3710 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3711 | mse[index].pa_hi, |
| 3712 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3713 | mse[index].pa_lo); |
| 3714 | } |
| 3715 | } else { |
| 3716 | if (index == 0) { |
| 3717 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3718 | hbd[index].pa_hi = |
| 3719 | putPaddrHigh(mbx_dmabuf->phys + |
| 3720 | sizeof(MAILBOX_t)); |
| 3721 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3722 | hbd[index].pa_lo = |
| 3723 | putPaddrLow(mbx_dmabuf->phys + |
| 3724 | sizeof(MAILBOX_t)); |
| 3725 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3726 | "3007 SLI_CONFIG(hbd)[%d], " |
| 3727 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3728 | index, |
| 3729 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3730 | &sli_cfg_mbx->un. |
| 3731 | sli_config_emb1_subsys.hbd[index]), |
| 3732 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3733 | hbd[index].pa_hi, |
| 3734 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3735 | hbd[index].pa_lo); |
| 3736 | |
| 3737 | } else { |
| 3738 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3739 | hbd[index].pa_hi = |
| 3740 | putPaddrHigh(ext_dmabuf->phys); |
| 3741 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3742 | hbd[index].pa_lo = |
| 3743 | putPaddrLow(ext_dmabuf->phys); |
| 3744 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3745 | "3008 SLI_CONFIG(hbd)[%d], " |
| 3746 | "bufLen:%d, addrHi:x%x, addrLo:x%x\n", |
| 3747 | index, |
| 3748 | bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 3749 | &sli_cfg_mbx->un. |
| 3750 | sli_config_emb1_subsys.hbd[index]), |
| 3751 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3752 | hbd[index].pa_hi, |
| 3753 | sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 3754 | hbd[index].pa_lo); |
| 3755 | } |
| 3756 | } |
| 3757 | return; |
| 3758 | } |
| 3759 | |
| 3760 | /** |
| 3761 | * lpfc_bsg_sli_cfg_mse_read_cmd_ext - sli_config non-embedded mailbox cmd read |
| 3762 | * @phba: Pointer to HBA context object. |
| 3763 | * @mb: Pointer to a BSG mailbox object. |
| 3764 | * @nemb_tp: Enumerate of non-embedded mailbox command type. |
| 3765 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 3766 | * |
| 3767 | * This routine performs SLI_CONFIG (0x9B) read mailbox command operation with |
| 3768 | * non-embedded external bufffers. |
| 3769 | **/ |
| 3770 | static int |
| 3771 | lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3772 | enum nemb_type nemb_tp, |
| 3773 | struct lpfc_dmabuf *dmabuf) |
| 3774 | { |
| 3775 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3776 | struct dfc_mbox_req *mbox_req; |
| 3777 | struct lpfc_dmabuf *curr_dmabuf, *next_dmabuf; |
| 3778 | uint32_t ext_buf_cnt, ext_buf_index; |
| 3779 | struct lpfc_dmabuf *ext_dmabuf = NULL; |
| 3780 | struct bsg_job_data *dd_data = NULL; |
| 3781 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 3782 | MAILBOX_t *pmb; |
| 3783 | uint8_t *pmbx; |
| 3784 | int rc, i; |
| 3785 | |
| 3786 | mbox_req = |
| 3787 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 3788 | |
| 3789 | /* pointer to the start of mailbox command */ |
| 3790 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3791 | |
| 3792 | if (nemb_tp == nemb_mse) { |
| 3793 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, |
| 3794 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); |
| 3795 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { |
| 3796 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3797 | "2945 Handled SLI_CONFIG(mse) rd, " |
| 3798 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3799 | ext_buf_cnt, |
| 3800 | LPFC_MBX_SLI_CONFIG_MAX_MSE); |
| 3801 | rc = -ERANGE; |
| 3802 | goto job_error; |
| 3803 | } |
| 3804 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3805 | "2941 Handled SLI_CONFIG(mse) rd, " |
| 3806 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3807 | } else { |
| 3808 | /* sanity check on interface type for support */ |
| 3809 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 3810 | LPFC_SLI_INTF_IF_TYPE_2) { |
| 3811 | rc = -ENODEV; |
| 3812 | goto job_error; |
| 3813 | } |
| 3814 | /* nemb_tp == nemb_hbd */ |
| 3815 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; |
| 3816 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { |
| 3817 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3818 | "2946 Handled SLI_CONFIG(hbd) rd, " |
| 3819 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3820 | ext_buf_cnt, |
| 3821 | LPFC_MBX_SLI_CONFIG_MAX_HBD); |
| 3822 | rc = -ERANGE; |
| 3823 | goto job_error; |
| 3824 | } |
| 3825 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3826 | "2942 Handled SLI_CONFIG(hbd) rd, " |
| 3827 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3828 | } |
| 3829 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3830 | /* before dma descriptor setup */ |
| 3831 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, |
| 3832 | sta_pre_addr, dmabuf, ext_buf_cnt); |
| 3833 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3834 | /* reject non-embedded mailbox command with none external buffer */ |
| 3835 | if (ext_buf_cnt == 0) { |
| 3836 | rc = -EPERM; |
| 3837 | goto job_error; |
| 3838 | } else if (ext_buf_cnt > 1) { |
| 3839 | /* additional external read buffers */ |
| 3840 | for (i = 1; i < ext_buf_cnt; i++) { |
| 3841 | ext_dmabuf = lpfc_bsg_dma_page_alloc(phba); |
| 3842 | if (!ext_dmabuf) { |
| 3843 | rc = -ENOMEM; |
| 3844 | goto job_error; |
| 3845 | } |
| 3846 | list_add_tail(&ext_dmabuf->list, |
| 3847 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3848 | } |
| 3849 | } |
| 3850 | |
| 3851 | /* bsg tracking structure */ |
| 3852 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 3853 | if (!dd_data) { |
| 3854 | rc = -ENOMEM; |
| 3855 | goto job_error; |
| 3856 | } |
| 3857 | |
| 3858 | /* mailbox command structure for base driver */ |
| 3859 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 3860 | if (!pmboxq) { |
| 3861 | rc = -ENOMEM; |
| 3862 | goto job_error; |
| 3863 | } |
| 3864 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 3865 | |
| 3866 | /* for the first external buffer */ |
| 3867 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); |
| 3868 | |
| 3869 | /* for the rest of external buffer descriptors if any */ |
| 3870 | if (ext_buf_cnt > 1) { |
| 3871 | ext_buf_index = 1; |
| 3872 | list_for_each_entry_safe(curr_dmabuf, next_dmabuf, |
| 3873 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list, list) { |
| 3874 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, |
| 3875 | ext_buf_index, dmabuf, |
| 3876 | curr_dmabuf); |
| 3877 | ext_buf_index++; |
| 3878 | } |
| 3879 | } |
| 3880 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 3881 | /* after dma descriptor setup */ |
| 3882 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_rd, dma_mbox, |
| 3883 | sta_pos_addr, dmabuf, ext_buf_cnt); |
| 3884 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3885 | /* construct base driver mbox command */ |
| 3886 | pmb = &pmboxq->u.mb; |
| 3887 | pmbx = (uint8_t *)dmabuf->virt; |
| 3888 | memcpy(pmb, pmbx, sizeof(*pmb)); |
| 3889 | pmb->mbxOwner = OWN_HOST; |
| 3890 | pmboxq->vport = phba->pport; |
| 3891 | |
| 3892 | /* multi-buffer handling context */ |
| 3893 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; |
| 3894 | phba->mbox_ext_buf_ctx.mboxType = mbox_rd; |
| 3895 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; |
| 3896 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; |
| 3897 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; |
| 3898 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; |
| 3899 | |
| 3900 | /* callback for multi-buffer read mailbox command */ |
| 3901 | pmboxq->mbox_cmpl = lpfc_bsg_issue_read_mbox_ext_cmpl; |
| 3902 | |
| 3903 | /* context fields to callback function */ |
| 3904 | pmboxq->context1 = dd_data; |
| 3905 | dd_data->type = TYPE_MBOX; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 3906 | dd_data->set_job = job; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3907 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 3908 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3909 | job->dd_data = dd_data; |
| 3910 | |
| 3911 | /* state change */ |
| 3912 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
| 3913 | |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 3914 | /* |
| 3915 | * Non-embedded mailbox subcommand data gets byte swapped here because |
| 3916 | * the lower level driver code only does the first 64 mailbox words. |
| 3917 | */ |
| 3918 | if ((!bsg_bf_get(lpfc_mbox_hdr_emb, |
| 3919 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) && |
| 3920 | (nemb_tp == nemb_mse)) |
| 3921 | lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)], |
| 3922 | &pmbx[sizeof(MAILBOX_t)], |
| 3923 | sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 3924 | mse[0].buf_len); |
| 3925 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3926 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 3927 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 3928 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3929 | "2947 Issued SLI_CONFIG ext-buffer " |
| 3930 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3931 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3932 | } |
| 3933 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 3934 | "2948 Failed to issue SLI_CONFIG ext-buffer " |
| 3935 | "maibox command, rc:x%x\n", rc); |
| 3936 | rc = -EPIPE; |
| 3937 | |
| 3938 | job_error: |
| 3939 | if (pmboxq) |
| 3940 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 3941 | lpfc_bsg_dma_page_list_free(phba, |
| 3942 | &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 3943 | kfree(dd_data); |
| 3944 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; |
| 3945 | return rc; |
| 3946 | } |
| 3947 | |
| 3948 | /** |
| 3949 | * lpfc_bsg_sli_cfg_write_cmd_ext - sli_config non-embedded mailbox cmd write |
| 3950 | * @phba: Pointer to HBA context object. |
| 3951 | * @mb: Pointer to a BSG mailbox object. |
| 3952 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 3953 | * |
| 3954 | * This routine performs SLI_CONFIG (0x9B) write mailbox command operation with |
| 3955 | * non-embedded external bufffers. |
| 3956 | **/ |
| 3957 | static int |
| 3958 | lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 3959 | enum nemb_type nemb_tp, |
| 3960 | struct lpfc_dmabuf *dmabuf) |
| 3961 | { |
| 3962 | struct dfc_mbox_req *mbox_req; |
| 3963 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 3964 | uint32_t ext_buf_cnt; |
| 3965 | struct bsg_job_data *dd_data = NULL; |
| 3966 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 3967 | MAILBOX_t *pmb; |
| 3968 | uint8_t *mbx; |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 3969 | int rc = SLI_CONFIG_NOT_HANDLED, i; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3970 | |
| 3971 | mbox_req = |
| 3972 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 3973 | |
| 3974 | /* pointer to the start of mailbox command */ |
| 3975 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 3976 | |
| 3977 | if (nemb_tp == nemb_mse) { |
| 3978 | ext_buf_cnt = bsg_bf_get(lpfc_mbox_hdr_mse_cnt, |
| 3979 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr); |
| 3980 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) { |
| 3981 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 3982 | "2953 Failed SLI_CONFIG(mse) wr, " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 3983 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 3984 | ext_buf_cnt, |
| 3985 | LPFC_MBX_SLI_CONFIG_MAX_MSE); |
| 3986 | return -ERANGE; |
| 3987 | } |
| 3988 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 3989 | "2949 Handled SLI_CONFIG(mse) wr, " |
| 3990 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 3991 | } else { |
| 3992 | /* sanity check on interface type for support */ |
| 3993 | if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != |
| 3994 | LPFC_SLI_INTF_IF_TYPE_2) |
| 3995 | return -ENODEV; |
| 3996 | /* nemb_tp == nemb_hbd */ |
| 3997 | ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count; |
| 3998 | if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) { |
| 3999 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4000 | "2954 Failed SLI_CONFIG(hbd) wr, " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4001 | "ext_buf_cnt(%d) out of range(%d)\n", |
| 4002 | ext_buf_cnt, |
| 4003 | LPFC_MBX_SLI_CONFIG_MAX_HBD); |
| 4004 | return -ERANGE; |
| 4005 | } |
| 4006 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4007 | "2950 Handled SLI_CONFIG(hbd) wr, " |
| 4008 | "ext_buf_cnt:%d\n", ext_buf_cnt); |
| 4009 | } |
| 4010 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 4011 | /* before dma buffer descriptor setup */ |
| 4012 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, |
| 4013 | sta_pre_addr, dmabuf, ext_buf_cnt); |
| 4014 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4015 | if (ext_buf_cnt == 0) |
| 4016 | return -EPERM; |
| 4017 | |
| 4018 | /* for the first external buffer */ |
| 4019 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, 0, dmabuf, dmabuf); |
| 4020 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 4021 | /* after dma descriptor setup */ |
| 4022 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, nemb_tp, mbox_wr, dma_mbox, |
| 4023 | sta_pos_addr, dmabuf, ext_buf_cnt); |
| 4024 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4025 | /* log for looking forward */ |
| 4026 | for (i = 1; i < ext_buf_cnt; i++) { |
| 4027 | if (nemb_tp == nemb_mse) |
| 4028 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4029 | "2951 SLI_CONFIG(mse), buf[%d]-length:%d\n", |
| 4030 | i, sli_cfg_mbx->un.sli_config_emb0_subsys. |
| 4031 | mse[i].buf_len); |
| 4032 | else |
| 4033 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4034 | "2952 SLI_CONFIG(hbd), buf[%d]-length:%d\n", |
| 4035 | i, bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 4036 | &sli_cfg_mbx->un.sli_config_emb1_subsys. |
| 4037 | hbd[i])); |
| 4038 | } |
| 4039 | |
| 4040 | /* multi-buffer handling context */ |
| 4041 | phba->mbox_ext_buf_ctx.nembType = nemb_tp; |
| 4042 | phba->mbox_ext_buf_ctx.mboxType = mbox_wr; |
| 4043 | phba->mbox_ext_buf_ctx.numBuf = ext_buf_cnt; |
| 4044 | phba->mbox_ext_buf_ctx.mbxTag = mbox_req->extMboxTag; |
| 4045 | phba->mbox_ext_buf_ctx.seqNum = mbox_req->extSeqNum; |
| 4046 | phba->mbox_ext_buf_ctx.mbx_dmabuf = dmabuf; |
| 4047 | |
| 4048 | if (ext_buf_cnt == 1) { |
| 4049 | /* bsg tracking structure */ |
| 4050 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 4051 | if (!dd_data) { |
| 4052 | rc = -ENOMEM; |
| 4053 | goto job_error; |
| 4054 | } |
| 4055 | |
| 4056 | /* mailbox command structure for base driver */ |
| 4057 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 4058 | if (!pmboxq) { |
| 4059 | rc = -ENOMEM; |
| 4060 | goto job_error; |
| 4061 | } |
| 4062 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 4063 | pmb = &pmboxq->u.mb; |
| 4064 | mbx = (uint8_t *)dmabuf->virt; |
| 4065 | memcpy(pmb, mbx, sizeof(*pmb)); |
| 4066 | pmb->mbxOwner = OWN_HOST; |
| 4067 | pmboxq->vport = phba->pport; |
| 4068 | |
| 4069 | /* callback for multi-buffer read mailbox command */ |
| 4070 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; |
| 4071 | |
| 4072 | /* context fields to callback function */ |
| 4073 | pmboxq->context1 = dd_data; |
| 4074 | dd_data->type = TYPE_MBOX; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4075 | dd_data->set_job = job; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4076 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 4077 | dd_data->context_un.mbox.mb = (MAILBOX_t *)mbx; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4078 | job->dd_data = dd_data; |
| 4079 | |
| 4080 | /* state change */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4081 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4082 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4083 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 4084 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 4085 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4086 | "2955 Issued SLI_CONFIG ext-buffer " |
| 4087 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4088 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4089 | } |
| 4090 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4091 | "2956 Failed to issue SLI_CONFIG ext-buffer " |
| 4092 | "maibox command, rc:x%x\n", rc); |
| 4093 | rc = -EPIPE; |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4094 | goto job_error; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4095 | } |
| 4096 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4097 | /* wait for additoinal external buffers */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4098 | |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4099 | job->reply->result = 0; |
| 4100 | job->job_done(job); |
| 4101 | return SLI_CONFIG_HANDLED; |
| 4102 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4103 | job_error: |
| 4104 | if (pmboxq) |
| 4105 | mempool_free(pmboxq, phba->mbox_mem_pool); |
| 4106 | kfree(dd_data); |
| 4107 | |
| 4108 | return rc; |
| 4109 | } |
| 4110 | |
| 4111 | /** |
| 4112 | * lpfc_bsg_handle_sli_cfg_mbox - handle sli-cfg mailbox cmd with ext buffer |
| 4113 | * @phba: Pointer to HBA context object. |
| 4114 | * @mb: Pointer to a BSG mailbox object. |
| 4115 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 4116 | * |
| 4117 | * This routine handles SLI_CONFIG (0x9B) mailbox command with non-embedded |
| 4118 | * external bufffers, including both 0x9B with non-embedded MSEs and 0x9B |
| 4119 | * with embedded sussystem 0x1 and opcodes with external HBDs. |
| 4120 | **/ |
| 4121 | static int |
| 4122 | lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4123 | struct lpfc_dmabuf *dmabuf) |
| 4124 | { |
| 4125 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 4126 | uint32_t subsys; |
| 4127 | uint32_t opcode; |
| 4128 | int rc = SLI_CONFIG_NOT_HANDLED; |
| 4129 | |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4130 | /* state change on new multi-buffer pass-through mailbox command */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4131 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST; |
| 4132 | |
| 4133 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt; |
| 4134 | |
| 4135 | if (!bsg_bf_get(lpfc_mbox_hdr_emb, |
| 4136 | &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) { |
| 4137 | subsys = bsg_bf_get(lpfc_emb0_subcmnd_subsys, |
| 4138 | &sli_cfg_mbx->un.sli_config_emb0_subsys); |
| 4139 | opcode = bsg_bf_get(lpfc_emb0_subcmnd_opcode, |
| 4140 | &sli_cfg_mbx->un.sli_config_emb0_subsys); |
| 4141 | if (subsys == SLI_CONFIG_SUBSYS_FCOE) { |
| 4142 | switch (opcode) { |
| 4143 | case FCOE_OPCODE_READ_FCF: |
James Smart | 2a2719d | 2014-02-20 09:56:28 -0500 | [diff] [blame] | 4144 | case FCOE_OPCODE_GET_DPORT_RESULTS: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4145 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4146 | "2957 Handled SLI_CONFIG " |
| 4147 | "subsys_fcoe, opcode:x%x\n", |
| 4148 | opcode); |
| 4149 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, |
| 4150 | nemb_mse, dmabuf); |
| 4151 | break; |
| 4152 | case FCOE_OPCODE_ADD_FCF: |
James Smart | 2a2719d | 2014-02-20 09:56:28 -0500 | [diff] [blame] | 4153 | case FCOE_OPCODE_SET_DPORT_MODE: |
| 4154 | case LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_STATE: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4155 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4156 | "2958 Handled SLI_CONFIG " |
| 4157 | "subsys_fcoe, opcode:x%x\n", |
| 4158 | opcode); |
| 4159 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, |
| 4160 | nemb_mse, dmabuf); |
| 4161 | break; |
| 4162 | default: |
| 4163 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4164 | "2959 Reject SLI_CONFIG " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4165 | "subsys_fcoe, opcode:x%x\n", |
| 4166 | opcode); |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4167 | rc = -EPERM; |
| 4168 | break; |
| 4169 | } |
| 4170 | } else if (subsys == SLI_CONFIG_SUBSYS_COMN) { |
| 4171 | switch (opcode) { |
| 4172 | case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES: |
James Smart | b99570d | 2012-05-09 21:16:24 -0400 | [diff] [blame] | 4173 | case COMN_OPCODE_GET_CNTL_ATTRIBUTES: |
James Smart | c637797 | 2015-04-07 15:07:10 -0400 | [diff] [blame] | 4174 | case COMN_OPCODE_GET_PROFILE_CONFIG: |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4175 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4176 | "3106 Handled SLI_CONFIG " |
James Smart | 6b5151f | 2012-01-18 16:24:06 -0500 | [diff] [blame] | 4177 | "subsys_comn, opcode:x%x\n", |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4178 | opcode); |
| 4179 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, |
| 4180 | nemb_mse, dmabuf); |
| 4181 | break; |
| 4182 | default: |
| 4183 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4184 | "3107 Reject SLI_CONFIG " |
James Smart | 6b5151f | 2012-01-18 16:24:06 -0500 | [diff] [blame] | 4185 | "subsys_comn, opcode:x%x\n", |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4186 | opcode); |
| 4187 | rc = -EPERM; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4188 | break; |
| 4189 | } |
| 4190 | } else { |
| 4191 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4192 | "2977 Reject SLI_CONFIG " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4193 | "subsys:x%d, opcode:x%x\n", |
| 4194 | subsys, opcode); |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4195 | rc = -EPERM; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4196 | } |
| 4197 | } else { |
| 4198 | subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys, |
| 4199 | &sli_cfg_mbx->un.sli_config_emb1_subsys); |
| 4200 | opcode = bsg_bf_get(lpfc_emb1_subcmnd_opcode, |
| 4201 | &sli_cfg_mbx->un.sli_config_emb1_subsys); |
| 4202 | if (subsys == SLI_CONFIG_SUBSYS_COMN) { |
| 4203 | switch (opcode) { |
| 4204 | case COMN_OPCODE_READ_OBJECT: |
| 4205 | case COMN_OPCODE_READ_OBJECT_LIST: |
| 4206 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4207 | "2960 Handled SLI_CONFIG " |
| 4208 | "subsys_comn, opcode:x%x\n", |
| 4209 | opcode); |
| 4210 | rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job, |
| 4211 | nemb_hbd, dmabuf); |
| 4212 | break; |
| 4213 | case COMN_OPCODE_WRITE_OBJECT: |
| 4214 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4215 | "2961 Handled SLI_CONFIG " |
| 4216 | "subsys_comn, opcode:x%x\n", |
| 4217 | opcode); |
| 4218 | rc = lpfc_bsg_sli_cfg_write_cmd_ext(phba, job, |
| 4219 | nemb_hbd, dmabuf); |
| 4220 | break; |
| 4221 | default: |
| 4222 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4223 | "2962 Not handled SLI_CONFIG " |
| 4224 | "subsys_comn, opcode:x%x\n", |
| 4225 | opcode); |
| 4226 | rc = SLI_CONFIG_NOT_HANDLED; |
| 4227 | break; |
| 4228 | } |
| 4229 | } else { |
| 4230 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4231 | "2978 Not handled SLI_CONFIG " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4232 | "subsys:x%d, opcode:x%x\n", |
| 4233 | subsys, opcode); |
| 4234 | rc = SLI_CONFIG_NOT_HANDLED; |
| 4235 | } |
| 4236 | } |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4237 | |
| 4238 | /* state reset on not handled new multi-buffer mailbox command */ |
| 4239 | if (rc != SLI_CONFIG_HANDLED) |
| 4240 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE; |
| 4241 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4242 | return rc; |
| 4243 | } |
| 4244 | |
| 4245 | /** |
| 4246 | * lpfc_bsg_mbox_ext_abort_req - request to abort mbox command with ext buffers |
| 4247 | * @phba: Pointer to HBA context object. |
| 4248 | * |
| 4249 | * This routine is for requesting to abort a pass-through mailbox command with |
| 4250 | * multiple external buffers due to error condition. |
| 4251 | **/ |
| 4252 | static void |
| 4253 | lpfc_bsg_mbox_ext_abort(struct lpfc_hba *phba) |
| 4254 | { |
| 4255 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
| 4256 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; |
| 4257 | else |
| 4258 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 4259 | return; |
| 4260 | } |
| 4261 | |
| 4262 | /** |
| 4263 | * lpfc_bsg_read_ebuf_get - get the next mailbox read external buffer |
| 4264 | * @phba: Pointer to HBA context object. |
| 4265 | * @dmabuf: Pointer to a DMA buffer descriptor. |
| 4266 | * |
| 4267 | * This routine extracts the next mailbox read external buffer back to |
| 4268 | * user space through BSG. |
| 4269 | **/ |
| 4270 | static int |
| 4271 | lpfc_bsg_read_ebuf_get(struct lpfc_hba *phba, struct fc_bsg_job *job) |
| 4272 | { |
| 4273 | struct lpfc_sli_config_mbox *sli_cfg_mbx; |
| 4274 | struct lpfc_dmabuf *dmabuf; |
| 4275 | uint8_t *pbuf; |
| 4276 | uint32_t size; |
| 4277 | uint32_t index; |
| 4278 | |
| 4279 | index = phba->mbox_ext_buf_ctx.seqNum; |
| 4280 | phba->mbox_ext_buf_ctx.seqNum++; |
| 4281 | |
| 4282 | sli_cfg_mbx = (struct lpfc_sli_config_mbox *) |
| 4283 | phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; |
| 4284 | |
| 4285 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { |
| 4286 | size = bsg_bf_get(lpfc_mbox_sli_config_mse_len, |
| 4287 | &sli_cfg_mbx->un.sli_config_emb0_subsys.mse[index]); |
| 4288 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4289 | "2963 SLI_CONFIG (mse) ext-buffer rd get " |
| 4290 | "buffer[%d], size:%d\n", index, size); |
| 4291 | } else { |
| 4292 | size = bsg_bf_get(lpfc_mbox_sli_config_ecmn_hbd_len, |
| 4293 | &sli_cfg_mbx->un.sli_config_emb1_subsys.hbd[index]); |
| 4294 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4295 | "2964 SLI_CONFIG (hbd) ext-buffer rd get " |
| 4296 | "buffer[%d], size:%d\n", index, size); |
| 4297 | } |
| 4298 | if (list_empty(&phba->mbox_ext_buf_ctx.ext_dmabuf_list)) |
| 4299 | return -EPIPE; |
| 4300 | dmabuf = list_first_entry(&phba->mbox_ext_buf_ctx.ext_dmabuf_list, |
| 4301 | struct lpfc_dmabuf, list); |
| 4302 | list_del_init(&dmabuf->list); |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 4303 | |
| 4304 | /* after dma buffer descriptor setup */ |
| 4305 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, |
| 4306 | mbox_rd, dma_ebuf, sta_pos_addr, |
| 4307 | dmabuf, index); |
| 4308 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4309 | pbuf = (uint8_t *)dmabuf->virt; |
| 4310 | job->reply->reply_payload_rcv_len = |
| 4311 | sg_copy_from_buffer(job->reply_payload.sg_list, |
| 4312 | job->reply_payload.sg_cnt, |
| 4313 | pbuf, size); |
| 4314 | |
| 4315 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 4316 | |
| 4317 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
| 4318 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4319 | "2965 SLI_CONFIG (hbd) ext-buffer rd mbox " |
| 4320 | "command session done\n"); |
| 4321 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 4322 | } |
| 4323 | |
| 4324 | job->reply->result = 0; |
| 4325 | job->job_done(job); |
| 4326 | |
| 4327 | return SLI_CONFIG_HANDLED; |
| 4328 | } |
| 4329 | |
| 4330 | /** |
| 4331 | * lpfc_bsg_write_ebuf_set - set the next mailbox write external buffer |
| 4332 | * @phba: Pointer to HBA context object. |
| 4333 | * @dmabuf: Pointer to a DMA buffer descriptor. |
| 4334 | * |
| 4335 | * This routine sets up the next mailbox read external buffer obtained |
| 4336 | * from user space through BSG. |
| 4337 | **/ |
| 4338 | static int |
| 4339 | lpfc_bsg_write_ebuf_set(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4340 | struct lpfc_dmabuf *dmabuf) |
| 4341 | { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4342 | struct bsg_job_data *dd_data = NULL; |
| 4343 | LPFC_MBOXQ_t *pmboxq = NULL; |
| 4344 | MAILBOX_t *pmb; |
| 4345 | enum nemb_type nemb_tp; |
| 4346 | uint8_t *pbuf; |
| 4347 | uint32_t size; |
| 4348 | uint32_t index; |
| 4349 | int rc; |
| 4350 | |
| 4351 | index = phba->mbox_ext_buf_ctx.seqNum; |
| 4352 | phba->mbox_ext_buf_ctx.seqNum++; |
| 4353 | nemb_tp = phba->mbox_ext_buf_ctx.nembType; |
| 4354 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4355 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 4356 | if (!dd_data) { |
| 4357 | rc = -ENOMEM; |
| 4358 | goto job_error; |
| 4359 | } |
| 4360 | |
| 4361 | pbuf = (uint8_t *)dmabuf->virt; |
| 4362 | size = job->request_payload.payload_len; |
| 4363 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 4364 | job->request_payload.sg_cnt, |
| 4365 | pbuf, size); |
| 4366 | |
| 4367 | if (phba->mbox_ext_buf_ctx.nembType == nemb_mse) { |
| 4368 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4369 | "2966 SLI_CONFIG (mse) ext-buffer wr set " |
| 4370 | "buffer[%d], size:%d\n", |
| 4371 | phba->mbox_ext_buf_ctx.seqNum, size); |
| 4372 | |
| 4373 | } else { |
| 4374 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4375 | "2967 SLI_CONFIG (hbd) ext-buffer wr set " |
| 4376 | "buffer[%d], size:%d\n", |
| 4377 | phba->mbox_ext_buf_ctx.seqNum, size); |
| 4378 | |
| 4379 | } |
| 4380 | |
| 4381 | /* set up external buffer descriptor and add to external buffer list */ |
| 4382 | lpfc_bsg_sli_cfg_dma_desc_setup(phba, nemb_tp, index, |
| 4383 | phba->mbox_ext_buf_ctx.mbx_dmabuf, |
| 4384 | dmabuf); |
| 4385 | list_add_tail(&dmabuf->list, &phba->mbox_ext_buf_ctx.ext_dmabuf_list); |
| 4386 | |
James Smart | b76f2dc | 2011-07-22 18:37:42 -0400 | [diff] [blame] | 4387 | /* after write dma buffer */ |
| 4388 | lpfc_idiag_mbxacc_dump_bsg_mbox(phba, phba->mbox_ext_buf_ctx.nembType, |
| 4389 | mbox_wr, dma_ebuf, sta_pos_addr, |
| 4390 | dmabuf, index); |
| 4391 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4392 | if (phba->mbox_ext_buf_ctx.seqNum == phba->mbox_ext_buf_ctx.numBuf) { |
| 4393 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4394 | "2968 SLI_CONFIG ext-buffer wr all %d " |
| 4395 | "ebuffers received\n", |
| 4396 | phba->mbox_ext_buf_ctx.numBuf); |
| 4397 | /* mailbox command structure for base driver */ |
| 4398 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 4399 | if (!pmboxq) { |
| 4400 | rc = -ENOMEM; |
| 4401 | goto job_error; |
| 4402 | } |
| 4403 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| 4404 | pbuf = (uint8_t *)phba->mbox_ext_buf_ctx.mbx_dmabuf->virt; |
| 4405 | pmb = &pmboxq->u.mb; |
| 4406 | memcpy(pmb, pbuf, sizeof(*pmb)); |
| 4407 | pmb->mbxOwner = OWN_HOST; |
| 4408 | pmboxq->vport = phba->pport; |
| 4409 | |
| 4410 | /* callback for multi-buffer write mailbox command */ |
| 4411 | pmboxq->mbox_cmpl = lpfc_bsg_issue_write_mbox_ext_cmpl; |
| 4412 | |
| 4413 | /* context fields to callback function */ |
| 4414 | pmboxq->context1 = dd_data; |
| 4415 | dd_data->type = TYPE_MBOX; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4416 | dd_data->set_job = job; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4417 | dd_data->context_un.mbox.pmboxq = pmboxq; |
| 4418 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pbuf; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4419 | job->dd_data = dd_data; |
| 4420 | |
| 4421 | /* state change */ |
| 4422 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT; |
| 4423 | |
| 4424 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 4425 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) { |
| 4426 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4427 | "2969 Issued SLI_CONFIG ext-buffer " |
| 4428 | "maibox command, rc:x%x\n", rc); |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4429 | return SLI_CONFIG_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4430 | } |
| 4431 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4432 | "2970 Failed to issue SLI_CONFIG ext-buffer " |
| 4433 | "maibox command, rc:x%x\n", rc); |
| 4434 | rc = -EPIPE; |
| 4435 | goto job_error; |
| 4436 | } |
| 4437 | |
| 4438 | /* wait for additoinal external buffers */ |
| 4439 | job->reply->result = 0; |
| 4440 | job->job_done(job); |
| 4441 | return SLI_CONFIG_HANDLED; |
| 4442 | |
| 4443 | job_error: |
| 4444 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 4445 | kfree(dd_data); |
| 4446 | |
| 4447 | return rc; |
| 4448 | } |
| 4449 | |
| 4450 | /** |
| 4451 | * lpfc_bsg_handle_sli_cfg_ebuf - handle ext buffer with sli-cfg mailbox cmd |
| 4452 | * @phba: Pointer to HBA context object. |
| 4453 | * @mb: Pointer to a BSG mailbox object. |
| 4454 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 4455 | * |
| 4456 | * This routine handles the external buffer with SLI_CONFIG (0x9B) mailbox |
| 4457 | * command with multiple non-embedded external buffers. |
| 4458 | **/ |
| 4459 | static int |
| 4460 | lpfc_bsg_handle_sli_cfg_ebuf(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4461 | struct lpfc_dmabuf *dmabuf) |
| 4462 | { |
| 4463 | int rc; |
| 4464 | |
| 4465 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4466 | "2971 SLI_CONFIG buffer (type:x%x)\n", |
| 4467 | phba->mbox_ext_buf_ctx.mboxType); |
| 4468 | |
| 4469 | if (phba->mbox_ext_buf_ctx.mboxType == mbox_rd) { |
| 4470 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_DONE) { |
| 4471 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4472 | "2972 SLI_CONFIG rd buffer state " |
| 4473 | "mismatch:x%x\n", |
| 4474 | phba->mbox_ext_buf_ctx.state); |
| 4475 | lpfc_bsg_mbox_ext_abort(phba); |
| 4476 | return -EPIPE; |
| 4477 | } |
| 4478 | rc = lpfc_bsg_read_ebuf_get(phba, job); |
| 4479 | if (rc == SLI_CONFIG_HANDLED) |
| 4480 | lpfc_bsg_dma_page_free(phba, dmabuf); |
| 4481 | } else { /* phba->mbox_ext_buf_ctx.mboxType == mbox_wr */ |
| 4482 | if (phba->mbox_ext_buf_ctx.state != LPFC_BSG_MBOX_HOST) { |
| 4483 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4484 | "2973 SLI_CONFIG wr buffer state " |
| 4485 | "mismatch:x%x\n", |
| 4486 | phba->mbox_ext_buf_ctx.state); |
| 4487 | lpfc_bsg_mbox_ext_abort(phba); |
| 4488 | return -EPIPE; |
| 4489 | } |
| 4490 | rc = lpfc_bsg_write_ebuf_set(phba, job, dmabuf); |
| 4491 | } |
| 4492 | return rc; |
| 4493 | } |
| 4494 | |
| 4495 | /** |
| 4496 | * lpfc_bsg_handle_sli_cfg_ext - handle sli-cfg mailbox with external buffer |
| 4497 | * @phba: Pointer to HBA context object. |
| 4498 | * @mb: Pointer to a BSG mailbox object. |
| 4499 | * @dmabuff: Pointer to a DMA buffer descriptor. |
| 4500 | * |
| 4501 | * This routine checkes and handles non-embedded multi-buffer SLI_CONFIG |
| 4502 | * (0x9B) mailbox commands and external buffers. |
| 4503 | **/ |
| 4504 | static int |
| 4505 | lpfc_bsg_handle_sli_cfg_ext(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4506 | struct lpfc_dmabuf *dmabuf) |
| 4507 | { |
| 4508 | struct dfc_mbox_req *mbox_req; |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4509 | int rc = SLI_CONFIG_NOT_HANDLED; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4510 | |
| 4511 | mbox_req = |
| 4512 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 4513 | |
| 4514 | /* mbox command with/without single external buffer */ |
| 4515 | if (mbox_req->extMboxTag == 0 && mbox_req->extSeqNum == 0) |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4516 | return rc; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4517 | |
| 4518 | /* mbox command and first external buffer */ |
| 4519 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_IDLE) { |
| 4520 | if (mbox_req->extSeqNum == 1) { |
| 4521 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4522 | "2974 SLI_CONFIG mailbox: tag:%d, " |
| 4523 | "seq:%d\n", mbox_req->extMboxTag, |
| 4524 | mbox_req->extSeqNum); |
| 4525 | rc = lpfc_bsg_handle_sli_cfg_mbox(phba, job, dmabuf); |
| 4526 | return rc; |
| 4527 | } else |
| 4528 | goto sli_cfg_ext_error; |
| 4529 | } |
| 4530 | |
| 4531 | /* |
| 4532 | * handle additional external buffers |
| 4533 | */ |
| 4534 | |
| 4535 | /* check broken pipe conditions */ |
| 4536 | if (mbox_req->extMboxTag != phba->mbox_ext_buf_ctx.mbxTag) |
| 4537 | goto sli_cfg_ext_error; |
| 4538 | if (mbox_req->extSeqNum > phba->mbox_ext_buf_ctx.numBuf) |
| 4539 | goto sli_cfg_ext_error; |
| 4540 | if (mbox_req->extSeqNum != phba->mbox_ext_buf_ctx.seqNum + 1) |
| 4541 | goto sli_cfg_ext_error; |
| 4542 | |
| 4543 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
| 4544 | "2975 SLI_CONFIG mailbox external buffer: " |
| 4545 | "extSta:x%x, tag:%d, seq:%d\n", |
| 4546 | phba->mbox_ext_buf_ctx.state, mbox_req->extMboxTag, |
| 4547 | mbox_req->extSeqNum); |
| 4548 | rc = lpfc_bsg_handle_sli_cfg_ebuf(phba, job, dmabuf); |
| 4549 | return rc; |
| 4550 | |
| 4551 | sli_cfg_ext_error: |
| 4552 | /* all other cases, broken pipe */ |
| 4553 | lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC, |
| 4554 | "2976 SLI_CONFIG mailbox broken pipe: " |
| 4555 | "ctxSta:x%x, ctxNumBuf:%d " |
| 4556 | "ctxTag:%d, ctxSeq:%d, tag:%d, seq:%d\n", |
| 4557 | phba->mbox_ext_buf_ctx.state, |
| 4558 | phba->mbox_ext_buf_ctx.numBuf, |
| 4559 | phba->mbox_ext_buf_ctx.mbxTag, |
| 4560 | phba->mbox_ext_buf_ctx.seqNum, |
| 4561 | mbox_req->extMboxTag, mbox_req->extSeqNum); |
| 4562 | |
| 4563 | lpfc_bsg_mbox_ext_session_reset(phba); |
| 4564 | |
| 4565 | return -EPIPE; |
| 4566 | } |
| 4567 | |
| 4568 | /** |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4569 | * lpfc_bsg_issue_mbox - issues a mailbox command on behalf of an app |
| 4570 | * @phba: Pointer to HBA context object. |
| 4571 | * @mb: Pointer to a mailbox object. |
| 4572 | * @vport: Pointer to a vport object. |
| 4573 | * |
| 4574 | * Allocate a tracking object, mailbox command memory, get a mailbox |
| 4575 | * from the mailbox pool, copy the caller mailbox command. |
| 4576 | * |
| 4577 | * If offline and the sli is active we need to poll for the command (port is |
| 4578 | * being reset) and com-plete the job, otherwise issue the mailbox command and |
| 4579 | * let our completion handler finish the command. |
| 4580 | **/ |
James Smart | a2fc4aef | 2014-09-03 12:57:55 -0400 | [diff] [blame] | 4581 | static int |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4582 | lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job, |
| 4583 | struct lpfc_vport *vport) |
| 4584 | { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4585 | LPFC_MBOXQ_t *pmboxq = NULL; /* internal mailbox queue */ |
| 4586 | MAILBOX_t *pmb; /* shortcut to the pmboxq mailbox */ |
| 4587 | /* 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] | 4588 | uint8_t *pmbx = NULL; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4589 | struct bsg_job_data *dd_data = NULL; /* bsg data tracking structure */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4590 | struct lpfc_dmabuf *dmabuf = NULL; |
| 4591 | struct dfc_mbox_req *mbox_req; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4592 | struct READ_EVENT_LOG_VAR *rdEventLog; |
| 4593 | uint32_t transmit_length, receive_length, mode; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4594 | struct lpfc_mbx_sli4_config *sli4_config; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4595 | struct lpfc_mbx_nembed_cmd *nembed_sge; |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4596 | struct ulp_bde64 *bde; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4597 | uint8_t *ext = NULL; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4598 | int rc = 0; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4599 | uint8_t *from; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4600 | uint32_t size; |
| 4601 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4602 | /* in case no data is transferred */ |
| 4603 | job->reply->reply_payload_rcv_len = 0; |
| 4604 | |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4605 | /* sanity check to protect driver */ |
| 4606 | if (job->reply_payload.payload_len > BSG_MBOX_SIZE || |
| 4607 | job->request_payload.payload_len > BSG_MBOX_SIZE) { |
| 4608 | rc = -ERANGE; |
| 4609 | goto job_done; |
| 4610 | } |
| 4611 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4612 | /* |
| 4613 | * Don't allow mailbox commands to be sent when blocked or when in |
| 4614 | * the middle of discovery |
| 4615 | */ |
| 4616 | if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
| 4617 | rc = -EAGAIN; |
| 4618 | goto job_done; |
| 4619 | } |
| 4620 | |
| 4621 | mbox_req = |
| 4622 | (struct dfc_mbox_req *)job->request->rqst_data.h_vendor.vendor_cmd; |
| 4623 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4624 | /* check if requested extended data lengths are valid */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4625 | if ((mbox_req->inExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t)) || |
| 4626 | (mbox_req->outExtWLen > BSG_MBOX_SIZE/sizeof(uint32_t))) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4627 | rc = -ERANGE; |
| 4628 | goto job_done; |
| 4629 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4630 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4631 | dmabuf = lpfc_bsg_dma_page_alloc(phba); |
| 4632 | if (!dmabuf || !dmabuf->virt) { |
| 4633 | rc = -ENOMEM; |
| 4634 | goto job_done; |
| 4635 | } |
| 4636 | |
| 4637 | /* Get the mailbox command or external buffer from BSG */ |
| 4638 | pmbx = (uint8_t *)dmabuf->virt; |
| 4639 | size = job->request_payload.payload_len; |
| 4640 | sg_copy_to_buffer(job->request_payload.sg_list, |
| 4641 | job->request_payload.sg_cnt, pmbx, size); |
| 4642 | |
| 4643 | /* Handle possible SLI_CONFIG with non-embedded payloads */ |
| 4644 | if (phba->sli_rev == LPFC_SLI_REV4) { |
| 4645 | rc = lpfc_bsg_handle_sli_cfg_ext(phba, job, dmabuf); |
| 4646 | if (rc == SLI_CONFIG_HANDLED) |
| 4647 | goto job_cont; |
| 4648 | if (rc) |
| 4649 | goto job_done; |
| 4650 | /* SLI_CONFIG_NOT_HANDLED for other mailbox commands */ |
| 4651 | } |
| 4652 | |
| 4653 | rc = lpfc_bsg_check_cmd_access(phba, (MAILBOX_t *)pmbx, vport); |
| 4654 | if (rc != 0) |
| 4655 | goto job_done; /* must be negative */ |
| 4656 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4657 | /* allocate our bsg tracking structure */ |
| 4658 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 4659 | if (!dd_data) { |
| 4660 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 4661 | "2727 Failed allocation of dd_data\n"); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4662 | rc = -ENOMEM; |
| 4663 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4664 | } |
| 4665 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4666 | pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 4667 | if (!pmboxq) { |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4668 | rc = -ENOMEM; |
| 4669 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4670 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4671 | memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4672 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4673 | pmb = &pmboxq->u.mb; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4674 | memcpy(pmb, pmbx, sizeof(*pmb)); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4675 | pmb->mbxOwner = OWN_HOST; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4676 | pmboxq->vport = vport; |
| 4677 | |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4678 | /* If HBA encountered an error attention, allow only DUMP |
| 4679 | * or RESTART mailbox commands until the HBA is restarted. |
| 4680 | */ |
| 4681 | if (phba->pport->stopped && |
| 4682 | pmb->mbxCommand != MBX_DUMP_MEMORY && |
| 4683 | pmb->mbxCommand != MBX_RESTART && |
| 4684 | pmb->mbxCommand != MBX_WRITE_VPARMS && |
| 4685 | pmb->mbxCommand != MBX_WRITE_WWN) |
| 4686 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| 4687 | "2797 mbox: Issued mailbox cmd " |
| 4688 | "0x%x while in stopped state.\n", |
| 4689 | pmb->mbxCommand); |
| 4690 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4691 | /* extended mailbox commands will need an extended buffer */ |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4692 | if (mbox_req->inExtWLen || mbox_req->outExtWLen) { |
James Smart | 026abb8 | 2011-12-13 13:20:45 -0500 | [diff] [blame] | 4693 | from = pmbx; |
| 4694 | ext = from + sizeof(MAILBOX_t); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4695 | pmboxq->context2 = ext; |
| 4696 | pmboxq->in_ext_byte_len = |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4697 | mbox_req->inExtWLen * sizeof(uint32_t); |
| 4698 | pmboxq->out_ext_byte_len = |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4699 | mbox_req->outExtWLen * sizeof(uint32_t); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4700 | pmboxq->mbox_offset_word = mbox_req->mbOffset; |
| 4701 | } |
| 4702 | |
| 4703 | /* biu diag will need a kernel buffer to transfer the data |
| 4704 | * allocate our own buffer and setup the mailbox command to |
| 4705 | * use ours |
| 4706 | */ |
| 4707 | if (pmb->mbxCommand == MBX_RUN_BIU_DIAG64) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4708 | transmit_length = pmb->un.varWords[1]; |
| 4709 | receive_length = pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4710 | /* transmit length cannot be greater than receive length or |
| 4711 | * mailbox extension size |
| 4712 | */ |
| 4713 | if ((transmit_length > receive_length) || |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4714 | (transmit_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4715 | rc = -ERANGE; |
| 4716 | goto job_done; |
| 4717 | } |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4718 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrHigh = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4719 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4720 | pmb->un.varBIUdiag.un.s2.xmit_bde64.addrLow = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4721 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4722 | |
| 4723 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrHigh = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4724 | putPaddrHigh(dmabuf->phys + sizeof(MAILBOX_t) |
| 4725 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4726 | pmb->un.varBIUdiag.un.s2.rcv_bde64.addrLow = |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4727 | putPaddrLow(dmabuf->phys + sizeof(MAILBOX_t) |
| 4728 | + pmb->un.varBIUdiag.un.s2.xmit_bde64.tus.f.bdeSize); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4729 | } else if (pmb->mbxCommand == MBX_READ_EVENT_LOG) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4730 | rdEventLog = &pmb->un.varRdEventLog; |
| 4731 | receive_length = rdEventLog->rcv_bde64.tus.f.bdeSize; |
| 4732 | mode = bf_get(lpfc_event_log, rdEventLog); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4733 | |
| 4734 | /* receive length cannot be greater than mailbox |
| 4735 | * extension size |
| 4736 | */ |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4737 | if (receive_length > BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4738 | rc = -ERANGE; |
| 4739 | goto job_done; |
| 4740 | } |
| 4741 | |
| 4742 | /* mode zero uses a bde like biu diags command */ |
| 4743 | if (mode == 0) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4744 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
| 4745 | + sizeof(MAILBOX_t)); |
| 4746 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys |
| 4747 | + sizeof(MAILBOX_t)); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4748 | } |
| 4749 | } else if (phba->sli_rev == LPFC_SLI_REV4) { |
James Smart | 3ef6d24 | 2012-01-18 16:23:48 -0500 | [diff] [blame] | 4750 | /* Let type 4 (well known data) through because the data is |
| 4751 | * returned in varwords[4-8] |
| 4752 | * otherwise check the recieve length and fetch the buffer addr |
| 4753 | */ |
| 4754 | if ((pmb->mbxCommand == MBX_DUMP_MEMORY) && |
| 4755 | (pmb->un.varDmp.type != DMP_WELL_KNOWN)) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4756 | /* rebuild the command for sli4 using our own buffers |
| 4757 | * like we do for biu diags |
| 4758 | */ |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4759 | receive_length = pmb->un.varWords[2]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4760 | /* receive length cannot be greater than mailbox |
| 4761 | * extension size |
| 4762 | */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4763 | if (receive_length == 0) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4764 | rc = -ERANGE; |
| 4765 | goto job_done; |
| 4766 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4767 | pmb->un.varWords[3] = putPaddrLow(dmabuf->phys |
| 4768 | + sizeof(MAILBOX_t)); |
| 4769 | pmb->un.varWords[4] = putPaddrHigh(dmabuf->phys |
| 4770 | + sizeof(MAILBOX_t)); |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4771 | } else if ((pmb->mbxCommand == MBX_UPDATE_CFG) && |
| 4772 | pmb->un.varUpdateCfg.co) { |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 4773 | bde = (struct ulp_bde64 *)&pmb->un.varWords[4]; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4774 | |
| 4775 | /* bde size cannot be greater than mailbox ext size */ |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4776 | if (bde->tus.f.bdeSize > |
| 4777 | BSG_MBOX_SIZE - sizeof(MAILBOX_t)) { |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4778 | rc = -ERANGE; |
| 4779 | goto job_done; |
| 4780 | } |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4781 | bde->addrHigh = putPaddrHigh(dmabuf->phys |
| 4782 | + sizeof(MAILBOX_t)); |
| 4783 | bde->addrLow = putPaddrLow(dmabuf->phys |
| 4784 | + sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4785 | } else if (pmb->mbxCommand == MBX_SLI4_CONFIG) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4786 | /* Handling non-embedded SLI_CONFIG mailbox command */ |
| 4787 | sli4_config = &pmboxq->u.mqe.un.sli4_config; |
| 4788 | if (!bf_get(lpfc_mbox_hdr_emb, |
| 4789 | &sli4_config->header.cfg_mhdr)) { |
| 4790 | /* rebuild the command for sli4 using our |
| 4791 | * own buffers like we do for biu diags |
| 4792 | */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4793 | nembed_sge = (struct lpfc_mbx_nembed_cmd *) |
| 4794 | &pmb->un.varWords[0]; |
| 4795 | receive_length = nembed_sge->sge[0].length; |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4796 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4797 | /* receive length cannot be greater than |
| 4798 | * mailbox extension size |
| 4799 | */ |
| 4800 | if ((receive_length == 0) || |
James Smart | 88a2cfb | 2011-07-22 18:36:33 -0400 | [diff] [blame] | 4801 | (receive_length > |
| 4802 | BSG_MBOX_SIZE - sizeof(MAILBOX_t))) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4803 | rc = -ERANGE; |
| 4804 | goto job_done; |
| 4805 | } |
| 4806 | |
| 4807 | nembed_sge->sge[0].pa_hi = |
| 4808 | putPaddrHigh(dmabuf->phys |
| 4809 | + sizeof(MAILBOX_t)); |
| 4810 | nembed_sge->sge[0].pa_lo = |
| 4811 | putPaddrLow(dmabuf->phys |
| 4812 | + sizeof(MAILBOX_t)); |
James Smart | 515e0aa | 2010-09-29 11:19:00 -0400 | [diff] [blame] | 4813 | } |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4814 | } |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4815 | } |
| 4816 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4817 | dd_data->context_un.mbox.dmabuffers = dmabuf; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4818 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4819 | /* setup wake call as IOCB callback */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4820 | pmboxq->mbox_cmpl = lpfc_bsg_issue_mbox_cmpl; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4821 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4822 | /* setup context field to pass wait_queue pointer to wake function */ |
| 4823 | pmboxq->context1 = dd_data; |
| 4824 | dd_data->type = TYPE_MBOX; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4825 | dd_data->set_job = job; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4826 | dd_data->context_un.mbox.pmboxq = pmboxq; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4827 | dd_data->context_un.mbox.mb = (MAILBOX_t *)pmbx; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4828 | dd_data->context_un.mbox.ext = ext; |
| 4829 | dd_data->context_un.mbox.mbOffset = mbox_req->mbOffset; |
| 4830 | dd_data->context_un.mbox.inExtWLen = mbox_req->inExtWLen; |
James Smart | c749593 | 2010-04-06 15:05:28 -0400 | [diff] [blame] | 4831 | dd_data->context_un.mbox.outExtWLen = mbox_req->outExtWLen; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4832 | job->dd_data = dd_data; |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4833 | |
| 4834 | if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| 4835 | (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { |
| 4836 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 4837 | if (rc != MBX_SUCCESS) { |
| 4838 | rc = (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
| 4839 | goto job_done; |
| 4840 | } |
| 4841 | |
| 4842 | /* job finished, copy the data */ |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4843 | memcpy(pmbx, pmb, sizeof(*pmb)); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4844 | job->reply->reply_payload_rcv_len = |
| 4845 | sg_copy_from_buffer(job->reply_payload.sg_list, |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4846 | job->reply_payload.sg_cnt, |
| 4847 | pmbx, size); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4848 | /* not waiting mbox already done */ |
| 4849 | rc = 0; |
| 4850 | goto job_done; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4851 | } |
| 4852 | |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4853 | rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 4854 | if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) |
| 4855 | return 1; /* job started */ |
| 4856 | |
| 4857 | job_done: |
| 4858 | /* common exit for error or job completed inline */ |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4859 | if (pmboxq) |
| 4860 | mempool_free(pmboxq, phba->mbox_mem_pool); |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4861 | lpfc_bsg_dma_page_free(phba, dmabuf); |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4862 | kfree(dd_data); |
| 4863 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4864 | job_cont: |
James Smart | 7a47027 | 2010-03-15 11:25:20 -0400 | [diff] [blame] | 4865 | return rc; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4866 | } |
| 4867 | |
| 4868 | /** |
| 4869 | * lpfc_bsg_mbox_cmd - process an fc bsg LPFC_BSG_VENDOR_MBOX command |
| 4870 | * @job: MBOX fc_bsg_job for LPFC_BSG_VENDOR_MBOX. |
| 4871 | **/ |
| 4872 | static int |
| 4873 | lpfc_bsg_mbox_cmd(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 | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4877 | struct dfc_mbox_req *mbox_req; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4878 | int rc = 0; |
| 4879 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4880 | /* mix-and-match backward compatibility */ |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4881 | job->reply->reply_payload_rcv_len = 0; |
| 4882 | if (job->request_len < |
| 4883 | sizeof(struct fc_bsg_request) + sizeof(struct dfc_mbox_req)) { |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4884 | lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC, |
Masanari Iida | 1051e9b | 2013-03-31 01:23:50 +0900 | [diff] [blame] | 4885 | "2737 Mix-and-match backward compatibility " |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 4886 | "between MBOX_REQ old size:%d and " |
| 4887 | "new request size:%d\n", |
| 4888 | (int)(job->request_len - |
| 4889 | sizeof(struct fc_bsg_request)), |
| 4890 | (int)sizeof(struct dfc_mbox_req)); |
| 4891 | mbox_req = (struct dfc_mbox_req *) |
| 4892 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 4893 | mbox_req->extMboxTag = 0; |
| 4894 | mbox_req->extSeqNum = 0; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4895 | } |
| 4896 | |
| 4897 | rc = lpfc_bsg_issue_mbox(phba, job, vport); |
| 4898 | |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 4899 | if (rc == 0) { |
| 4900 | /* job done */ |
| 4901 | job->reply->result = 0; |
| 4902 | job->dd_data = NULL; |
| 4903 | job->job_done(job); |
| 4904 | } else if (rc == 1) |
| 4905 | /* job submitted, will complete later*/ |
| 4906 | rc = 0; /* return zero, no error */ |
| 4907 | else { |
| 4908 | /* some error occurred */ |
| 4909 | job->reply->result = rc; |
| 4910 | job->dd_data = NULL; |
| 4911 | } |
| 4912 | |
| 4913 | return rc; |
| 4914 | } |
| 4915 | |
| 4916 | /** |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4917 | * lpfc_bsg_menlo_cmd_cmp - lpfc_menlo_cmd completion handler |
| 4918 | * @phba: Pointer to HBA context object. |
| 4919 | * @cmdiocbq: Pointer to command iocb. |
| 4920 | * @rspiocbq: Pointer to response iocb. |
| 4921 | * |
| 4922 | * This function is the completion handler for iocbs issued using |
| 4923 | * lpfc_menlo_cmd function. This function is called by the |
| 4924 | * ring event handler function without any lock held. This function |
| 4925 | * can be called from both worker thread context and interrupt |
| 4926 | * context. This function also can be called from another thread which |
| 4927 | * cleans up the SLI layer objects. |
| 4928 | * This function copies the contents of the response iocb to the |
| 4929 | * response iocb memory object provided by the caller of |
| 4930 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which |
| 4931 | * sleeps for the iocb completion. |
| 4932 | **/ |
| 4933 | static void |
| 4934 | lpfc_bsg_menlo_cmd_cmp(struct lpfc_hba *phba, |
| 4935 | struct lpfc_iocbq *cmdiocbq, |
| 4936 | struct lpfc_iocbq *rspiocbq) |
| 4937 | { |
| 4938 | struct bsg_job_data *dd_data; |
| 4939 | struct fc_bsg_job *job; |
| 4940 | IOCB_t *rsp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4941 | struct lpfc_dmabuf *bmp, *cmp, *rmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4942 | struct lpfc_bsg_menlo *menlo; |
| 4943 | unsigned long flags; |
| 4944 | struct menlo_response *menlo_resp; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4945 | unsigned int rsp_size; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4946 | int rc = 0; |
| 4947 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4948 | dd_data = cmdiocbq->context1; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4949 | cmp = cmdiocbq->context2; |
| 4950 | bmp = cmdiocbq->context3; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4951 | menlo = &dd_data->context_un.menlo; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4952 | rmp = menlo->rmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4953 | rsp = &rspiocbq->iocb; |
| 4954 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4955 | /* Determine if job has been aborted */ |
| 4956 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 4957 | job = dd_data->set_job; |
| 4958 | if (job) { |
| 4959 | /* Prevent timeout handling from trying to abort job */ |
| 4960 | job->dd_data = NULL; |
| 4961 | } |
| 4962 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4963 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4964 | /* Copy the job data or set the failing status for the job */ |
| 4965 | |
| 4966 | if (job) { |
| 4967 | /* always return the xri, this would be used in the case |
| 4968 | * of a menlo download to allow the data to be sent as a |
| 4969 | * continuation of the exchange. |
| 4970 | */ |
| 4971 | |
| 4972 | menlo_resp = (struct menlo_response *) |
| 4973 | job->reply->reply_data.vendor_reply.vendor_rsp; |
| 4974 | menlo_resp->xri = rsp->ulpContext; |
| 4975 | if (rsp->ulpStatus) { |
| 4976 | if (rsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
| 4977 | switch (rsp->un.ulpWord[4] & IOERR_PARAM_MASK) { |
| 4978 | case IOERR_SEQUENCE_TIMEOUT: |
| 4979 | rc = -ETIMEDOUT; |
| 4980 | break; |
| 4981 | case IOERR_INVALID_RPI: |
| 4982 | rc = -EFAULT; |
| 4983 | break; |
| 4984 | default: |
| 4985 | rc = -EACCES; |
| 4986 | break; |
| 4987 | } |
| 4988 | } else { |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4989 | rc = -EACCES; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4990 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4991 | } else { |
| 4992 | rsp_size = rsp->un.genreq64.bdl.bdeSize; |
| 4993 | job->reply->reply_payload_rcv_len = |
| 4994 | lpfc_bsg_copy_data(rmp, &job->reply_payload, |
| 4995 | rsp_size, 0); |
| 4996 | } |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 4997 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 4998 | } |
| 4999 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5000 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5001 | lpfc_free_bsg_buffers(phba, cmp); |
| 5002 | lpfc_free_bsg_buffers(phba, rmp); |
| 5003 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5004 | kfree(bmp); |
| 5005 | kfree(dd_data); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5006 | |
| 5007 | /* Complete the job if active */ |
| 5008 | |
| 5009 | if (job) { |
| 5010 | job->reply->result = rc; |
| 5011 | job->job_done(job); |
| 5012 | } |
| 5013 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5014 | return; |
| 5015 | } |
| 5016 | |
| 5017 | /** |
| 5018 | * lpfc_menlo_cmd - send an ioctl for menlo hardware |
| 5019 | * @job: fc_bsg_job to handle |
| 5020 | * |
| 5021 | * This function issues a gen request 64 CR ioctl for all menlo cmd requests, |
| 5022 | * all the command completions will return the xri for the command. |
| 5023 | * For menlo data requests a gen request 64 CX is used to continue the exchange |
| 5024 | * supplied in the menlo request header xri field. |
| 5025 | **/ |
| 5026 | static int |
| 5027 | lpfc_menlo_cmd(struct fc_bsg_job *job) |
| 5028 | { |
| 5029 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 5030 | struct lpfc_hba *phba = vport->phba; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5031 | struct lpfc_iocbq *cmdiocbq; |
| 5032 | IOCB_t *cmd; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5033 | int rc = 0; |
| 5034 | struct menlo_command *menlo_cmd; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5035 | struct lpfc_dmabuf *bmp = NULL, *cmp = NULL, *rmp = NULL; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5036 | int request_nseg; |
| 5037 | int reply_nseg; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5038 | struct bsg_job_data *dd_data; |
| 5039 | struct ulp_bde64 *bpl = NULL; |
| 5040 | |
| 5041 | /* in case no data is returned return just the return code */ |
| 5042 | job->reply->reply_payload_rcv_len = 0; |
| 5043 | |
| 5044 | if (job->request_len < |
| 5045 | sizeof(struct fc_bsg_request) + |
| 5046 | sizeof(struct menlo_command)) { |
| 5047 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 5048 | "2784 Received MENLO_CMD request below " |
| 5049 | "minimum size\n"); |
| 5050 | rc = -ERANGE; |
| 5051 | goto no_dd_data; |
| 5052 | } |
| 5053 | |
| 5054 | if (job->reply_len < |
| 5055 | sizeof(struct fc_bsg_request) + sizeof(struct menlo_response)) { |
| 5056 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 5057 | "2785 Received MENLO_CMD reply below " |
| 5058 | "minimum size\n"); |
| 5059 | rc = -ERANGE; |
| 5060 | goto no_dd_data; |
| 5061 | } |
| 5062 | |
| 5063 | if (!(phba->menlo_flag & HBA_MENLO_SUPPORT)) { |
| 5064 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 5065 | "2786 Adapter does not support menlo " |
| 5066 | "commands\n"); |
| 5067 | rc = -EPERM; |
| 5068 | goto no_dd_data; |
| 5069 | } |
| 5070 | |
| 5071 | menlo_cmd = (struct menlo_command *) |
| 5072 | job->request->rqst_data.h_vendor.vendor_cmd; |
| 5073 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5074 | /* allocate our bsg tracking structure */ |
| 5075 | dd_data = kmalloc(sizeof(struct bsg_job_data), GFP_KERNEL); |
| 5076 | if (!dd_data) { |
| 5077 | lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC, |
| 5078 | "2787 Failed allocation of dd_data\n"); |
| 5079 | rc = -ENOMEM; |
| 5080 | goto no_dd_data; |
| 5081 | } |
| 5082 | |
| 5083 | bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
| 5084 | if (!bmp) { |
| 5085 | rc = -ENOMEM; |
| 5086 | goto free_dd; |
| 5087 | } |
| 5088 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5089 | bmp->virt = lpfc_mbuf_alloc(phba, 0, &bmp->phys); |
| 5090 | if (!bmp->virt) { |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5091 | rc = -ENOMEM; |
| 5092 | goto free_bmp; |
| 5093 | } |
| 5094 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5095 | INIT_LIST_HEAD(&bmp->list); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5096 | |
| 5097 | bpl = (struct ulp_bde64 *)bmp->virt; |
| 5098 | request_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64); |
| 5099 | cmp = lpfc_alloc_bsg_buffers(phba, job->request_payload.payload_len, |
| 5100 | 1, bpl, &request_nseg); |
| 5101 | if (!cmp) { |
| 5102 | rc = -ENOMEM; |
| 5103 | goto free_bmp; |
| 5104 | } |
| 5105 | lpfc_bsg_copy_data(cmp, &job->request_payload, |
| 5106 | job->request_payload.payload_len, 1); |
| 5107 | |
| 5108 | bpl += request_nseg; |
| 5109 | reply_nseg = LPFC_BPL_SIZE/sizeof(struct ulp_bde64) - request_nseg; |
| 5110 | rmp = lpfc_alloc_bsg_buffers(phba, job->reply_payload.payload_len, 0, |
| 5111 | bpl, &reply_nseg); |
| 5112 | if (!rmp) { |
| 5113 | rc = -ENOMEM; |
| 5114 | goto free_cmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5115 | } |
| 5116 | |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5117 | cmdiocbq = lpfc_sli_get_iocbq(phba); |
| 5118 | if (!cmdiocbq) { |
| 5119 | rc = -ENOMEM; |
| 5120 | goto free_rmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5121 | } |
| 5122 | |
| 5123 | cmd = &cmdiocbq->iocb; |
| 5124 | cmd->un.genreq64.bdl.ulpIoTag32 = 0; |
| 5125 | cmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); |
| 5126 | cmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); |
| 5127 | cmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64; |
| 5128 | cmd->un.genreq64.bdl.bdeSize = |
| 5129 | (request_nseg + reply_nseg) * sizeof(struct ulp_bde64); |
| 5130 | cmd->un.genreq64.w5.hcsw.Fctl = (SI | LA); |
| 5131 | cmd->un.genreq64.w5.hcsw.Dfctl = 0; |
| 5132 | cmd->un.genreq64.w5.hcsw.Rctl = FC_RCTL_DD_UNSOL_CMD; |
| 5133 | cmd->un.genreq64.w5.hcsw.Type = MENLO_TRANSPORT_TYPE; /* 0xfe */ |
| 5134 | cmd->ulpBdeCount = 1; |
| 5135 | cmd->ulpClass = CLASS3; |
| 5136 | cmd->ulpOwner = OWN_CHIP; |
| 5137 | cmd->ulpLe = 1; /* Limited Edition */ |
| 5138 | cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC; |
| 5139 | cmdiocbq->vport = phba->pport; |
| 5140 | /* We want the firmware to timeout before we do */ |
| 5141 | cmd->ulpTimeout = MENLO_TIMEOUT - 5; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5142 | cmdiocbq->iocb_cmpl = lpfc_bsg_menlo_cmd_cmp; |
| 5143 | cmdiocbq->context1 = dd_data; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5144 | cmdiocbq->context2 = cmp; |
| 5145 | cmdiocbq->context3 = bmp; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5146 | if (menlo_cmd->cmd == LPFC_BSG_VENDOR_MENLO_CMD) { |
| 5147 | cmd->ulpCommand = CMD_GEN_REQUEST64_CR; |
| 5148 | cmd->ulpPU = MENLO_PU; /* 3 */ |
| 5149 | cmd->un.ulpWord[4] = MENLO_DID; /* 0x0000FC0E */ |
| 5150 | cmd->ulpContext = MENLO_CONTEXT; /* 0 */ |
| 5151 | } else { |
| 5152 | cmd->ulpCommand = CMD_GEN_REQUEST64_CX; |
| 5153 | cmd->ulpPU = 1; |
| 5154 | cmd->un.ulpWord[4] = 0; |
| 5155 | cmd->ulpContext = menlo_cmd->xri; |
| 5156 | } |
| 5157 | |
| 5158 | dd_data->type = TYPE_MENLO; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5159 | dd_data->set_job = job; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5160 | dd_data->context_un.menlo.cmdiocbq = cmdiocbq; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5161 | dd_data->context_un.menlo.rmp = rmp; |
| 5162 | job->dd_data = dd_data; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5163 | |
| 5164 | rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, cmdiocbq, |
| 5165 | MENLO_TIMEOUT - 5); |
| 5166 | if (rc == IOCB_SUCCESS) |
| 5167 | return 0; /* done for now */ |
| 5168 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5169 | lpfc_sli_release_iocbq(phba, cmdiocbq); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5170 | |
| 5171 | free_rmp: |
| 5172 | lpfc_free_bsg_buffers(phba, rmp); |
| 5173 | free_cmp: |
| 5174 | lpfc_free_bsg_buffers(phba, cmp); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5175 | free_bmp: |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5176 | if (bmp->virt) |
| 5177 | lpfc_mbuf_free(phba, bmp->virt, bmp->phys); |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5178 | kfree(bmp); |
| 5179 | free_dd: |
| 5180 | kfree(dd_data); |
| 5181 | no_dd_data: |
| 5182 | /* make error code available to userspace */ |
| 5183 | job->reply->result = rc; |
| 5184 | job->dd_data = NULL; |
| 5185 | return rc; |
| 5186 | } |
James Smart | b6e3b9c | 2011-04-16 11:03:43 -0400 | [diff] [blame] | 5187 | |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5188 | /** |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5189 | * lpfc_bsg_hst_vendor - process a vendor-specific fc_bsg_job |
| 5190 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5191 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5192 | static int |
| 5193 | lpfc_bsg_hst_vendor(struct fc_bsg_job *job) |
| 5194 | { |
| 5195 | int command = job->request->rqst_data.h_vendor.vendor_cmd[0]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5196 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5197 | |
| 5198 | switch (command) { |
| 5199 | case LPFC_BSG_VENDOR_SET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5200 | rc = lpfc_bsg_hba_set_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5201 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5202 | case LPFC_BSG_VENDOR_GET_CT_EVENT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5203 | rc = lpfc_bsg_hba_get_event(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5204 | break; |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5205 | case LPFC_BSG_VENDOR_SEND_MGMT_RESP: |
| 5206 | rc = lpfc_bsg_send_mgmt_rsp(job); |
| 5207 | break; |
| 5208 | case LPFC_BSG_VENDOR_DIAG_MODE: |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 5209 | rc = lpfc_bsg_diag_loopback_mode(job); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5210 | break; |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 5211 | case LPFC_BSG_VENDOR_DIAG_MODE_END: |
| 5212 | rc = lpfc_sli4_bsg_diag_mode_end(job); |
| 5213 | break; |
| 5214 | case LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK: |
| 5215 | rc = lpfc_bsg_diag_loopback_run(job); |
| 5216 | break; |
| 5217 | case LPFC_BSG_VENDOR_LINK_DIAG_TEST: |
| 5218 | rc = lpfc_sli4_bsg_link_diag_test(job); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5219 | break; |
| 5220 | case LPFC_BSG_VENDOR_GET_MGMT_REV: |
| 5221 | rc = lpfc_bsg_get_dfc_rev(job); |
| 5222 | break; |
| 5223 | case LPFC_BSG_VENDOR_MBOX: |
| 5224 | rc = lpfc_bsg_mbox_cmd(job); |
| 5225 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5226 | case LPFC_BSG_VENDOR_MENLO_CMD: |
| 5227 | case LPFC_BSG_VENDOR_MENLO_DATA: |
| 5228 | rc = lpfc_menlo_cmd(job); |
| 5229 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5230 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5231 | rc = -EINVAL; |
| 5232 | job->reply->reply_payload_rcv_len = 0; |
| 5233 | /* make error code available to userspace */ |
| 5234 | job->reply->result = rc; |
| 5235 | break; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5236 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5237 | |
| 5238 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5239 | } |
| 5240 | |
| 5241 | /** |
| 5242 | * lpfc_bsg_request - handle a bsg request from the FC transport |
| 5243 | * @job: fc_bsg_job to handle |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5244 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5245 | int |
| 5246 | lpfc_bsg_request(struct fc_bsg_job *job) |
| 5247 | { |
| 5248 | uint32_t msgcode; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5249 | int rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5250 | |
| 5251 | msgcode = job->request->msgcode; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5252 | switch (msgcode) { |
| 5253 | case FC_BSG_HST_VENDOR: |
| 5254 | rc = lpfc_bsg_hst_vendor(job); |
| 5255 | break; |
| 5256 | case FC_BSG_RPT_ELS: |
| 5257 | rc = lpfc_bsg_rport_els(job); |
| 5258 | break; |
| 5259 | case FC_BSG_RPT_CT: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5260 | rc = lpfc_bsg_send_mgmt_cmd(job); |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5261 | break; |
| 5262 | default: |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5263 | rc = -EINVAL; |
| 5264 | job->reply->reply_payload_rcv_len = 0; |
| 5265 | /* make error code available to userspace */ |
| 5266 | job->reply->result = rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5267 | break; |
| 5268 | } |
| 5269 | |
| 5270 | return rc; |
| 5271 | } |
| 5272 | |
| 5273 | /** |
| 5274 | * lpfc_bsg_timeout - handle timeout of a bsg request from the FC transport |
| 5275 | * @job: fc_bsg_job that has timed out |
| 5276 | * |
| 5277 | * This function just aborts the job's IOCB. The aborted IOCB will return to |
| 5278 | * the waiting function which will handle passing the error back to userspace |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5279 | **/ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5280 | int |
| 5281 | lpfc_bsg_timeout(struct fc_bsg_job *job) |
| 5282 | { |
| 5283 | struct lpfc_vport *vport = (struct lpfc_vport *)job->shost->hostdata; |
| 5284 | struct lpfc_hba *phba = vport->phba; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5285 | struct lpfc_iocbq *cmdiocb; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5286 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5287 | struct bsg_job_data *dd_data; |
| 5288 | unsigned long flags; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5289 | int rc = 0; |
| 5290 | LIST_HEAD(completions); |
| 5291 | struct lpfc_iocbq *check_iocb, *next_iocb; |
| 5292 | |
| 5293 | /* if job's driver data is NULL, the command completed or is in the |
| 5294 | * the process of completing. In this case, return status to request |
| 5295 | * so the timeout is retried. This avoids double completion issues |
| 5296 | * and the request will be pulled off the timer queue when the |
| 5297 | * command's completion handler executes. Otherwise, prevent the |
| 5298 | * command's completion handler from executing the job done callback |
| 5299 | * and continue processing to abort the outstanding the command. |
| 5300 | */ |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5301 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5302 | spin_lock_irqsave(&phba->ct_ev_lock, flags); |
| 5303 | dd_data = (struct bsg_job_data *)job->dd_data; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5304 | if (dd_data) { |
| 5305 | dd_data->set_job = NULL; |
| 5306 | job->dd_data = NULL; |
| 5307 | } else { |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5308 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5309 | return -EAGAIN; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5310 | } |
| 5311 | |
| 5312 | switch (dd_data->type) { |
| 5313 | case TYPE_IOCB: |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5314 | /* Check to see if IOCB was issued to the port or not. If not, |
| 5315 | * remove it from the txq queue and call cancel iocbs. |
| 5316 | * Otherwise, call abort iotag |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5317 | */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5318 | cmdiocb = dd_data->context_un.iocb.cmdiocbq; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 5319 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 5320 | |
| 5321 | spin_lock_irqsave(&phba->hbalock, flags); |
| 5322 | /* make sure the I/O abort window is still open */ |
James Smart | 1b8d11a | 2013-09-06 12:20:51 -0400 | [diff] [blame] | 5323 | if (!(cmdiocb->iocb_flag & LPFC_IO_CMD_OUTSTANDING)) { |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 5324 | spin_unlock_irqrestore(&phba->hbalock, flags); |
| 5325 | return -EAGAIN; |
| 5326 | } |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5327 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
| 5328 | list) { |
| 5329 | if (check_iocb == cmdiocb) { |
| 5330 | list_move_tail(&check_iocb->list, &completions); |
| 5331 | break; |
| 5332 | } |
| 5333 | } |
| 5334 | if (list_empty(&completions)) |
| 5335 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 5336 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5337 | if (!list_empty(&completions)) { |
| 5338 | lpfc_sli_cancel_iocbs(phba, &completions, |
| 5339 | IOSTAT_LOCAL_REJECT, |
| 5340 | IOERR_SLI_ABORTED); |
| 5341 | } |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5342 | break; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5343 | |
| 5344 | case TYPE_EVT: |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5345 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5346 | break; |
| 5347 | |
| 5348 | case TYPE_MBOX: |
| 5349 | /* Update the ext buf ctx state if needed */ |
| 5350 | |
James Smart | 7ad20aa | 2011-05-24 11:44:28 -0400 | [diff] [blame] | 5351 | if (phba->mbox_ext_buf_ctx.state == LPFC_BSG_MBOX_PORT) |
| 5352 | phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_ABTS; |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5353 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
James Smart | 3b5dd52 | 2010-01-26 23:10:15 -0500 | [diff] [blame] | 5354 | break; |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5355 | case TYPE_MENLO: |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5356 | /* Check to see if IOCB was issued to the port or not. If not, |
| 5357 | * remove it from the txq queue and call cancel iocbs. |
| 5358 | * Otherwise, call abort iotag. |
| 5359 | */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5360 | cmdiocb = dd_data->context_un.menlo.cmdiocbq; |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 5361 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 5362 | |
| 5363 | spin_lock_irqsave(&phba->hbalock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5364 | list_for_each_entry_safe(check_iocb, next_iocb, &pring->txq, |
| 5365 | list) { |
| 5366 | if (check_iocb == cmdiocb) { |
| 5367 | list_move_tail(&check_iocb->list, &completions); |
| 5368 | break; |
| 5369 | } |
| 5370 | } |
| 5371 | if (list_empty(&completions)) |
| 5372 | lpfc_sli_issue_abort_iotag(phba, pring, cmdiocb); |
James Smart | b5a9b2d | 2013-09-06 12:19:45 -0400 | [diff] [blame] | 5373 | spin_unlock_irqrestore(&phba->hbalock, flags); |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5374 | if (!list_empty(&completions)) { |
| 5375 | lpfc_sli_cancel_iocbs(phba, &completions, |
| 5376 | IOSTAT_LOCAL_REJECT, |
| 5377 | IOERR_SLI_ABORTED); |
| 5378 | } |
James Smart | e2aed29 | 2010-02-26 14:15:00 -0500 | [diff] [blame] | 5379 | break; |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5380 | default: |
| 5381 | spin_unlock_irqrestore(&phba->ct_ev_lock, flags); |
| 5382 | break; |
| 5383 | } |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5384 | |
James Smart | 4cc0e56 | 2010-01-26 23:09:48 -0500 | [diff] [blame] | 5385 | /* scsi transport fc fc_bsg_job_timeout expects a zero return code, |
| 5386 | * otherwise an error message will be displayed on the console |
| 5387 | * so always return success (zero) |
| 5388 | */ |
James Smart | a33c4f7 | 2013-03-01 16:36:00 -0500 | [diff] [blame] | 5389 | return rc; |
James Smart | f1c3b0f | 2009-07-19 10:01:32 -0400 | [diff] [blame] | 5390 | } |