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[linux/fpc-iii.git] / drivers / scsi / mpt2sas / mpt2sas_transport.c
blob742324a0a11eecda3ac5f1530b81bf0a1492a147
1 /*
2 * SAS Transport Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_transport.c
5 * Copyright (C) 2007-2008 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/init.h>
47 #include <linux/errno.h>
48 #include <linux/sched.h>
49 #include <linux/workqueue.h>
50 #include <linux/delay.h>
51 #include <linux/pci.h>
52
53 #include <scsi/scsi.h>
54 #include <scsi/scsi_cmnd.h>
55 #include <scsi/scsi_device.h>
56 #include <scsi/scsi_host.h>
57 #include <scsi/scsi_transport_sas.h>
58 #include <scsi/scsi_dbg.h>
59
60 #include "mpt2sas_base.h"
61 /**
62 * _transport_sas_node_find_by_handle - sas node search
63 * @ioc: per adapter object
64 * @handle: expander or hba handle (assigned by firmware)
65 * Context: Calling function should acquire ioc->sas_node_lock.
66 *
67 * Search for either hba phys or expander device based on handle, then returns
68 * the sas_node object.
69 */
70 static struct _sas_node *
71 _transport_sas_node_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
72 {
73 int i;
74
75 for (i = 0; i < ioc->sas_hba.num_phys; i++)
76 if (ioc->sas_hba.phy[i].handle == handle)
77 return &ioc->sas_hba;
78
79 return mpt2sas_scsih_expander_find_by_handle(ioc, handle);
80 }
81
82 /**
83 * _transport_convert_phy_link_rate -
84 * @link_rate: link rate returned from mpt firmware
85 *
86 * Convert link_rate from mpi fusion into sas_transport form.
87 */
88 static enum sas_linkrate
89 _transport_convert_phy_link_rate(u8 link_rate)
90 {
91 enum sas_linkrate rc;
92
93 switch (link_rate) {
94 case MPI2_SAS_NEG_LINK_RATE_1_5:
95 rc = SAS_LINK_RATE_1_5_GBPS;
96 break;
97 case MPI2_SAS_NEG_LINK_RATE_3_0:
98 rc = SAS_LINK_RATE_3_0_GBPS;
99 break;
100 case MPI2_SAS_NEG_LINK_RATE_6_0:
101 rc = SAS_LINK_RATE_6_0_GBPS;
102 break;
103 case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED:
104 rc = SAS_PHY_DISABLED;
105 break;
106 case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
107 rc = SAS_LINK_RATE_FAILED;
108 break;
109 case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR:
110 rc = SAS_SATA_PORT_SELECTOR;
111 break;
112 case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
113 rc = SAS_PHY_RESET_IN_PROGRESS;
114 break;
115 default:
116 case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
117 case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
118 rc = SAS_LINK_RATE_UNKNOWN;
119 break;
120 }
121 return rc;
122 }
123
124 /**
125 * _transport_set_identify - set identify for phys and end devices
126 * @ioc: per adapter object
127 * @handle: device handle
128 * @identify: sas identify info
129 *
130 * Populates sas identify info.
131 *
132 * Returns 0 for success, non-zero for failure.
133 */
134 static int
135 _transport_set_identify(struct MPT2SAS_ADAPTER *ioc, u16 handle,
136 struct sas_identify *identify)
137 {
138 Mpi2SasDevicePage0_t sas_device_pg0;
139 Mpi2ConfigReply_t mpi_reply;
140 u32 device_info;
141 u32 ioc_status;
142
143 if (ioc->shost_recovery) {
144 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
145 __func__, ioc->name);
146 return -EFAULT;
147 }
148
149 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
150 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
151 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
152
153 ioc->name, __FILE__, __LINE__, __func__);
154 return -ENXIO;
155 }
156
157 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
158 MPI2_IOCSTATUS_MASK;
159 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
160 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
161 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
162 __FILE__, __LINE__, __func__);
163 return -EIO;
164 }
165
166 memset(identify, 0, sizeof(identify));
167 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
168
169 /* sas_address */
170 identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
171
172 /* device_type */
173 switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
174 case MPI2_SAS_DEVICE_INFO_NO_DEVICE:
175 identify->device_type = SAS_PHY_UNUSED;
176 break;
177 case MPI2_SAS_DEVICE_INFO_END_DEVICE:
178 identify->device_type = SAS_END_DEVICE;
179 break;
180 case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER:
181 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
182 break;
183 case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER:
184 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
185 break;
186 }
187
188 /* initiator_port_protocols */
189 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR)
190 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
191 if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR)
192 identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
193 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR)
194 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
195 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST)
196 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
197
198 /* target_port_protocols */
199 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)
200 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
201 if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
202 identify->target_port_protocols |= SAS_PROTOCOL_STP;
203 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET)
204 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
205 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
206 identify->target_port_protocols |= SAS_PROTOCOL_SATA;
207
208 return 0;
209 }
210
211 /**
212 * mpt2sas_transport_done - internal transport layer callback handler.
213 * @ioc: per adapter object
214 * @smid: system request message index
215 * @VF_ID: virtual function id
216 * @reply: reply message frame(lower 32bit addr)
217 *
218 * Callback handler when sending internal generated transport cmds.
219 * The callback index passed is `ioc->transport_cb_idx`
220 *
221 * Return nothing.
222 */
223 void
224 mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID,
225 u32 reply)
226 {
227 MPI2DefaultReply_t *mpi_reply;
228
229 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
230 if (ioc->transport_cmds.status == MPT2_CMD_NOT_USED)
231 return;
232 if (ioc->transport_cmds.smid != smid)
233 return;
234 ioc->transport_cmds.status |= MPT2_CMD_COMPLETE;
235 if (mpi_reply) {
236 memcpy(ioc->transport_cmds.reply, mpi_reply,
237 mpi_reply->MsgLength*4);
238 ioc->transport_cmds.status |= MPT2_CMD_REPLY_VALID;
239 }
240 ioc->transport_cmds.status &= ~MPT2_CMD_PENDING;
241 complete(&ioc->transport_cmds.done);
242 }
243
244 /* report manufacture request structure */
245 struct rep_manu_request{
246 u8 smp_frame_type;
247 u8 function;
248 u8 reserved;
249 u8 request_length;
250 };
251
252 /* report manufacture reply structure */
253 struct rep_manu_reply{
254 u8 smp_frame_type; /* 0x41 */
255 u8 function; /* 0x01 */
256 u8 function_result;
257 u8 response_length;
258 u16 expander_change_count;
259 u8 reserved0[2];
260 u8 sas_format:1;
261 u8 reserved1:7;
262 u8 reserved2[3];
263 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
264 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
265 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
266 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
267 u16 component_id;
268 u8 component_revision_id;
269 u8 reserved3;
270 u8 vendor_specific[8];
271 };
272
273 /**
274 * _transport_expander_report_manufacture - obtain SMP report_manufacture
275 * @ioc: per adapter object
276 * @sas_address: expander sas address
277 * @edev: the sas_expander_device object
278 *
279 * Fills in the sas_expander_device object when SMP port is created.
280 *
281 * Returns 0 for success, non-zero for failure.
282 */
283 static int
284 _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc,
285 u64 sas_address, struct sas_expander_device *edev)
286 {
287 Mpi2SmpPassthroughRequest_t *mpi_request;
288 Mpi2SmpPassthroughReply_t *mpi_reply;
289 struct rep_manu_reply *manufacture_reply;
290 struct rep_manu_request *manufacture_request;
291 int rc;
292 u16 smid;
293 u32 ioc_state;
294 unsigned long timeleft;
295 void *psge;
296 u32 sgl_flags;
297 u8 issue_reset = 0;
298 void *data_out = NULL;
299 dma_addr_t data_out_dma;
300 u32 sz;
301 u64 *sas_address_le;
302 u16 wait_state_count;
303
304 if (ioc->shost_recovery) {
305 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
306 __func__, ioc->name);
307 return -EFAULT;
308 }
309
310 mutex_lock(&ioc->transport_cmds.mutex);
311
312 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
313 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
314 ioc->name, __func__);
315 rc = -EAGAIN;
316 goto out;
317 }
318 ioc->transport_cmds.status = MPT2_CMD_PENDING;
319
320 wait_state_count = 0;
321 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
322 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
323 if (wait_state_count++ == 10) {
324 printk(MPT2SAS_ERR_FMT
325 "%s: failed due to ioc not operational\n",
326 ioc->name, __func__);
327 rc = -EFAULT;
328 goto out;
329 }
330 ssleep(1);
331 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
332 printk(MPT2SAS_INFO_FMT "%s: waiting for "
333 "operational state(count=%d)\n", ioc->name,
334 __func__, wait_state_count);
335 }
336 if (wait_state_count)
337 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
338 ioc->name, __func__);
339
340 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
341 if (!smid) {
342 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
343 ioc->name, __func__);
344 rc = -EAGAIN;
345 goto out;
346 }
347
348 rc = 0;
349 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
350 ioc->transport_cmds.smid = smid;
351
352 sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply);
353 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
354
355 if (!data_out) {
356 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
357 __LINE__, __func__);
358 rc = -ENOMEM;
359 mpt2sas_base_free_smid(ioc, smid);
360 goto out;
361 }
362
363 manufacture_request = data_out;
364 manufacture_request->smp_frame_type = 0x40;
365 manufacture_request->function = 1;
366 manufacture_request->reserved = 0;
367 manufacture_request->request_length = 0;
368
369 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
370 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
371 mpi_request->PhysicalPort = 0xFF;
372 sas_address_le = (u64 *)&mpi_request->SASAddress;
373 *sas_address_le = cpu_to_le64(sas_address);
374 mpi_request->RequestDataLength = sizeof(struct rep_manu_request);
375 psge = &mpi_request->SGL;
376
377 /* WRITE sgel first */
378 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
379 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
380 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
381 ioc->base_add_sg_single(psge, sgl_flags |
382 sizeof(struct rep_manu_request), data_out_dma);
383
384 /* incr sgel */
385 psge += ioc->sge_size;
386
387 /* READ sgel last */
388 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
389 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
390 MPI2_SGE_FLAGS_END_OF_LIST);
391 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
392 ioc->base_add_sg_single(psge, sgl_flags |
393 sizeof(struct rep_manu_reply), data_out_dma +
394 sizeof(struct rep_manu_request));
395
396 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - "
397 "send to sas_addr(0x%016llx)\n", ioc->name,
398 (unsigned long long)sas_address));
399 mpt2sas_base_put_smid_default(ioc, smid, 0 /* VF_ID */);
400 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
401 10*HZ);
402
403 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
404 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
405 ioc->name, __func__);
406 _debug_dump_mf(mpi_request,
407 sizeof(Mpi2SmpPassthroughRequest_t)/4);
408 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
409 issue_reset = 1;
410 goto issue_host_reset;
411 }
412
413 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - "
414 "complete\n", ioc->name));
415
416 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
417 u8 *tmp;
418
419 mpi_reply = ioc->transport_cmds.reply;
420
421 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
422 "report_manufacture - reply data transfer size(%d)\n",
423 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
424
425 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
426 sizeof(struct rep_manu_reply))
427 goto out;
428
429 manufacture_reply = data_out + sizeof(struct rep_manu_request);
430 strncpy(edev->vendor_id, manufacture_reply->vendor_id,
431 SAS_EXPANDER_VENDOR_ID_LEN);
432 strncpy(edev->product_id, manufacture_reply->product_id,
433 SAS_EXPANDER_PRODUCT_ID_LEN);
434 strncpy(edev->product_rev, manufacture_reply->product_rev,
435 SAS_EXPANDER_PRODUCT_REV_LEN);
436 edev->level = manufacture_reply->sas_format;
437 if (manufacture_reply->sas_format) {
438 strncpy(edev->component_vendor_id,
439 manufacture_reply->component_vendor_id,
440 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
441 tmp = (u8 *)&manufacture_reply->component_id;
442 edev->component_id = tmp[0] << 8 | tmp[1];
443 edev->component_revision_id =
444 manufacture_reply->component_revision_id;
445 }
446 } else
447 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
448 "report_manufacture - no reply\n", ioc->name));
449
450 issue_host_reset:
451 if (issue_reset)
452 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
453 FORCE_BIG_HAMMER);
454 out:
455 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
456 if (data_out)
457 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
458
459 mutex_unlock(&ioc->transport_cmds.mutex);
460 return rc;
461 }
462
463 /**
464 * mpt2sas_transport_port_add - insert port to the list
465 * @ioc: per adapter object
466 * @handle: handle of attached device
467 * @parent_handle: parent handle(either hba or expander)
468 * Context: This function will acquire ioc->sas_node_lock.
469 *
470 * Adding new port object to the sas_node->sas_port_list.
471 *
472 * Returns mpt2sas_port.
473 */
474 struct _sas_port *
475 mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle,
476 u16 parent_handle)
477 {
478 struct _sas_phy *mpt2sas_phy, *next;
479 struct _sas_port *mpt2sas_port;
480 unsigned long flags;
481 struct _sas_node *sas_node;
482 struct sas_rphy *rphy;
483 int i;
484 struct sas_port *port;
485
486 if (!parent_handle)
487 return NULL;
488
489 mpt2sas_port = kzalloc(sizeof(struct _sas_port),
490 GFP_KERNEL);
491 if (!mpt2sas_port) {
492 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
493 ioc->name, __FILE__, __LINE__, __func__);
494 return NULL;
495 }
496
497 INIT_LIST_HEAD(&mpt2sas_port->port_list);
498 INIT_LIST_HEAD(&mpt2sas_port->phy_list);
499 spin_lock_irqsave(&ioc->sas_node_lock, flags);
500 sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
501 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
502
503 if (!sas_node) {
504 printk(MPT2SAS_ERR_FMT "%s: Could not find parent(0x%04x)!\n",
505 ioc->name, __func__, parent_handle);
506 goto out_fail;
507 }
508
509 mpt2sas_port->handle = parent_handle;
510 mpt2sas_port->sas_address = sas_node->sas_address;
511 if ((_transport_set_identify(ioc, handle,
512 &mpt2sas_port->remote_identify))) {
513 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
514 ioc->name, __FILE__, __LINE__, __func__);
515 goto out_fail;
516 }
517
518 if (mpt2sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
519 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
520 ioc->name, __FILE__, __LINE__, __func__);
521 goto out_fail;
522 }
523
524 for (i = 0; i < sas_node->num_phys; i++) {
525 if (sas_node->phy[i].remote_identify.sas_address !=
526 mpt2sas_port->remote_identify.sas_address)
527 continue;
528 list_add_tail(&sas_node->phy[i].port_siblings,
529 &mpt2sas_port->phy_list);
530 mpt2sas_port->num_phys++;
531 }
532
533 if (!mpt2sas_port->num_phys) {
534 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
535 ioc->name, __FILE__, __LINE__, __func__);
536 goto out_fail;
537 }
538
539 port = sas_port_alloc_num(sas_node->parent_dev);
540 if ((sas_port_add(port))) {
541 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
542 ioc->name, __FILE__, __LINE__, __func__);
543 goto out_fail;
544 }
545
546 list_for_each_entry(mpt2sas_phy, &mpt2sas_port->phy_list,
547 port_siblings) {
548 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
549 dev_printk(KERN_INFO, &port->dev, "add: handle(0x%04x)"
550 ", sas_addr(0x%016llx), phy(%d)\n", handle,
551 (unsigned long long)
552 mpt2sas_port->remote_identify.sas_address,
553 mpt2sas_phy->phy_id);
554 sas_port_add_phy(port, mpt2sas_phy->phy);
555 }
556
557 mpt2sas_port->port = port;
558 if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE)
559 rphy = sas_end_device_alloc(port);
560 else
561 rphy = sas_expander_alloc(port,
562 mpt2sas_port->remote_identify.device_type);
563
564 rphy->identify = mpt2sas_port->remote_identify;
565 if ((sas_rphy_add(rphy))) {
566 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
567 ioc->name, __FILE__, __LINE__, __func__);
568 }
569 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
570 dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), "
571 "sas_addr(0x%016llx)\n", handle,
572 (unsigned long long)
573 mpt2sas_port->remote_identify.sas_address);
574 mpt2sas_port->rphy = rphy;
575 spin_lock_irqsave(&ioc->sas_node_lock, flags);
576 list_add_tail(&mpt2sas_port->port_list, &sas_node->sas_port_list);
577 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
578
579 /* fill in report manufacture */
580 if (mpt2sas_port->remote_identify.device_type ==
581 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
582 mpt2sas_port->remote_identify.device_type ==
583 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER)
584 _transport_expander_report_manufacture(ioc,
585 mpt2sas_port->remote_identify.sas_address,
586 rphy_to_expander_device(rphy));
587
588 return mpt2sas_port;
589
590 out_fail:
591 list_for_each_entry_safe(mpt2sas_phy, next, &mpt2sas_port->phy_list,
592 port_siblings)
593 list_del(&mpt2sas_phy->port_siblings);
594 kfree(mpt2sas_port);
595 return NULL;
596 }
597
598 /**
599 * mpt2sas_transport_port_remove - remove port from the list
600 * @ioc: per adapter object
601 * @sas_address: sas address of attached device
602 * @parent_handle: handle to the upstream parent(either hba or expander)
603 * Context: This function will acquire ioc->sas_node_lock.
604 *
605 * Removing object and freeing associated memory from the
606 * ioc->sas_port_list.
607 *
608 * Return nothing.
609 */
610 void
611 mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
612 u16 parent_handle)
613 {
614 int i;
615 unsigned long flags;
616 struct _sas_port *mpt2sas_port, *next;
617 struct _sas_node *sas_node;
618 u8 found = 0;
619 struct _sas_phy *mpt2sas_phy, *next_phy;
620
621 spin_lock_irqsave(&ioc->sas_node_lock, flags);
622 sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
623 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
624 if (!sas_node)
625 return;
626 list_for_each_entry_safe(mpt2sas_port, next, &sas_node->sas_port_list,
627 port_list) {
628 if (mpt2sas_port->remote_identify.sas_address != sas_address)
629 continue;
630 found = 1;
631 list_del(&mpt2sas_port->port_list);
632 goto out;
633 }
634 out:
635 if (!found)
636 return;
637
638 for (i = 0; i < sas_node->num_phys; i++) {
639 if (sas_node->phy[i].remote_identify.sas_address == sas_address)
640 memset(&sas_node->phy[i].remote_identify, 0 ,
641 sizeof(struct sas_identify));
642 }
643
644 list_for_each_entry_safe(mpt2sas_phy, next_phy,
645 &mpt2sas_port->phy_list, port_siblings) {
646 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
647 dev_printk(KERN_INFO, &mpt2sas_port->port->dev,
648 "remove: parent_handle(0x%04x), "
649 "sas_addr(0x%016llx), phy(%d)\n", parent_handle,
650 (unsigned long long)
651 mpt2sas_port->remote_identify.sas_address,
652 mpt2sas_phy->phy_id);
653 sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy);
654 list_del(&mpt2sas_phy->port_siblings);
655 }
656 sas_port_delete(mpt2sas_port->port);
657 kfree(mpt2sas_port);
658 }
659
660 /**
661 * mpt2sas_transport_add_host_phy - report sas_host phy to transport
662 * @ioc: per adapter object
663 * @mpt2sas_phy: mpt2sas per phy object
664 * @phy_pg0: sas phy page 0
665 * @parent_dev: parent device class object
666 *
667 * Returns 0 for success, non-zero for failure.
668 */
669 int
670 mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
671 *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev)
672 {
673 struct sas_phy *phy;
674 int phy_index = mpt2sas_phy->phy_id;
675
676
677 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
678 phy = sas_phy_alloc(parent_dev, phy_index);
679 if (!phy) {
680 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
681 ioc->name, __FILE__, __LINE__, __func__);
682 return -1;
683 }
684 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
685 &mpt2sas_phy->identify))) {
686 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
687 ioc->name, __FILE__, __LINE__, __func__);
688 return -1;
689 }
690 phy->identify = mpt2sas_phy->identify;
691 mpt2sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle);
692 if (mpt2sas_phy->attached_handle)
693 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
694 &mpt2sas_phy->remote_identify);
695 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
696 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
697 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
698 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
699 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
700 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
701 phy_pg0.HwLinkRate >> 4);
702 phy->minimum_linkrate = _transport_convert_phy_link_rate(
703 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
704 phy->maximum_linkrate = _transport_convert_phy_link_rate(
705 phy_pg0.ProgrammedLinkRate >> 4);
706
707 if ((sas_phy_add(phy))) {
708 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
709 ioc->name, __FILE__, __LINE__, __func__);
710 sas_phy_free(phy);
711 return -1;
712 }
713 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
714 dev_printk(KERN_INFO, &phy->dev,
715 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
716 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
717 mpt2sas_phy->handle, (unsigned long long)
718 mpt2sas_phy->identify.sas_address,
719 mpt2sas_phy->attached_handle,
720 (unsigned long long)
721 mpt2sas_phy->remote_identify.sas_address);
722 mpt2sas_phy->phy = phy;
723 return 0;
724 }
725
726
727 /**
728 * mpt2sas_transport_add_expander_phy - report expander phy to transport
729 * @ioc: per adapter object
730 * @mpt2sas_phy: mpt2sas per phy object
731 * @expander_pg1: expander page 1
732 * @parent_dev: parent device class object
733 *
734 * Returns 0 for success, non-zero for failure.
735 */
736 int
737 mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
738 *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev)
739 {
740 struct sas_phy *phy;
741 int phy_index = mpt2sas_phy->phy_id;
742
743 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
744 phy = sas_phy_alloc(parent_dev, phy_index);
745 if (!phy) {
746 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
747 ioc->name, __FILE__, __LINE__, __func__);
748 return -1;
749 }
750 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
751 &mpt2sas_phy->identify))) {
752 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
753 ioc->name, __FILE__, __LINE__, __func__);
754 return -1;
755 }
756 phy->identify = mpt2sas_phy->identify;
757 mpt2sas_phy->attached_handle =
758 le16_to_cpu(expander_pg1.AttachedDevHandle);
759 if (mpt2sas_phy->attached_handle)
760 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
761 &mpt2sas_phy->remote_identify);
762 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
763 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
764 expander_pg1.NegotiatedLinkRate &
765 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
766 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
767 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
768 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
769 expander_pg1.HwLinkRate >> 4);
770 phy->minimum_linkrate = _transport_convert_phy_link_rate(
771 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
772 phy->maximum_linkrate = _transport_convert_phy_link_rate(
773 expander_pg1.ProgrammedLinkRate >> 4);
774
775 if ((sas_phy_add(phy))) {
776 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
777 ioc->name, __FILE__, __LINE__, __func__);
778 sas_phy_free(phy);
779 return -1;
780 }
781 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
782 dev_printk(KERN_INFO, &phy->dev,
783 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
784 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
785 mpt2sas_phy->handle, (unsigned long long)
786 mpt2sas_phy->identify.sas_address,
787 mpt2sas_phy->attached_handle,
788 (unsigned long long)
789 mpt2sas_phy->remote_identify.sas_address);
790 mpt2sas_phy->phy = phy;
791 return 0;
792 }
793
794 /**
795 * mpt2sas_transport_update_links - refreshing phy link changes
796 * @ioc: per adapter object
797 * @handle: handle to sas_host or expander
798 * @attached_handle: attached device handle
799 * @phy_numberv: phy number
800 * @link_rate: new link rate
801 *
802 * Returns nothing.
803 */
804 void
805 mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
806 u16 handle, u16 attached_handle, u8 phy_number, u8 link_rate)
807 {
808 unsigned long flags;
809 struct _sas_node *sas_node;
810 struct _sas_phy *mpt2sas_phy;
811
812 if (ioc->shost_recovery) {
813 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
814 __func__, ioc->name);
815 return;
816 }
817
818 spin_lock_irqsave(&ioc->sas_node_lock, flags);
819 sas_node = _transport_sas_node_find_by_handle(ioc, handle);
820 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
821 if (!sas_node)
822 return;
823
824 mpt2sas_phy = &sas_node->phy[phy_number];
825 mpt2sas_phy->attached_handle = attached_handle;
826 if (attached_handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5))
827 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
828 &mpt2sas_phy->remote_identify);
829 else
830 memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
831 sas_identify));
832
833 if (mpt2sas_phy->phy)
834 mpt2sas_phy->phy->negotiated_linkrate =
835 _transport_convert_phy_link_rate(link_rate);
836
837 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
838 dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev,
839 "refresh: handle(0x%04x), sas_addr(0x%016llx),\n"
840 "\tlink_rate(0x%02x), phy(%d)\n"
841 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
842 handle, (unsigned long long)
843 mpt2sas_phy->identify.sas_address, link_rate,
844 phy_number, attached_handle,
845 (unsigned long long)
846 mpt2sas_phy->remote_identify.sas_address);
847 }
848
849 static inline void *
850 phy_to_ioc(struct sas_phy *phy)
851 {
852 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
853 return shost_priv(shost);
854 }
855
856 static inline void *
857 rphy_to_ioc(struct sas_rphy *rphy)
858 {
859 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
860 return shost_priv(shost);
861 }
862
863 /**
864 * _transport_get_linkerrors -
865 * @phy: The sas phy object
866 *
867 * Only support sas_host direct attached phys.
868 * Returns 0 for success, non-zero for failure.
869 *
870 */
871 static int
872 _transport_get_linkerrors(struct sas_phy *phy)
873 {
874 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
875 struct _sas_phy *mpt2sas_phy;
876 Mpi2ConfigReply_t mpi_reply;
877 Mpi2SasPhyPage1_t phy_pg1;
878 int i;
879
880 for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys &&
881 !mpt2sas_phy; i++) {
882 if (ioc->sas_hba.phy[i].phy != phy)
883 continue;
884 mpt2sas_phy = &ioc->sas_hba.phy[i];
885 }
886
887 if (!mpt2sas_phy) /* this phy not on sas_host */
888 return -EINVAL;
889
890 if ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
891 mpt2sas_phy->phy_id))) {
892 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
893 ioc->name, __FILE__, __LINE__, __func__);
894 return -ENXIO;
895 }
896
897 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
898 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
899 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
900 mpt2sas_phy->phy_id,
901 le16_to_cpu(mpi_reply.IOCStatus),
902 le32_to_cpu(mpi_reply.IOCLogInfo));
903
904 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
905 phy->running_disparity_error_count =
906 le32_to_cpu(phy_pg1.RunningDisparityErrorCount);
907 phy->loss_of_dword_sync_count =
908 le32_to_cpu(phy_pg1.LossDwordSynchCount);
909 phy->phy_reset_problem_count =
910 le32_to_cpu(phy_pg1.PhyResetProblemCount);
911 return 0;
912 }
913
914 /**
915 * _transport_get_enclosure_identifier -
916 * @phy: The sas phy object
917 *
918 * Obtain the enclosure logical id for an expander.
919 * Returns 0 for success, non-zero for failure.
920 */
921 static int
922 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
923 {
924 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
925 struct _sas_node *sas_expander;
926 unsigned long flags;
927
928 spin_lock_irqsave(&ioc->sas_node_lock, flags);
929 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
930 rphy->identify.sas_address);
931 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
932
933 if (!sas_expander)
934 return -ENXIO;
935
936 *identifier = sas_expander->enclosure_logical_id;
937 return 0;
938 }
939
940 /**
941 * _transport_get_bay_identifier -
942 * @phy: The sas phy object
943 *
944 * Returns the slot id for a device that resides inside an enclosure.
945 */
946 static int
947 _transport_get_bay_identifier(struct sas_rphy *rphy)
948 {
949 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
950 struct _sas_device *sas_device;
951 unsigned long flags;
952
953 spin_lock_irqsave(&ioc->sas_device_lock, flags);
954 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
955 rphy->identify.sas_address);
956 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
957
958 if (!sas_device)
959 return -ENXIO;
960
961 return sas_device->slot;
962 }
963
964 /**
965 * _transport_phy_reset -
966 * @phy: The sas phy object
967 * @hard_reset:
968 *
969 * Only support sas_host direct attached phys.
970 * Returns 0 for success, non-zero for failure.
971 */
972 static int
973 _transport_phy_reset(struct sas_phy *phy, int hard_reset)
974 {
975 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
976 struct _sas_phy *mpt2sas_phy;
977 Mpi2SasIoUnitControlReply_t mpi_reply;
978 Mpi2SasIoUnitControlRequest_t mpi_request;
979 int i;
980
981 for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys &&
982 !mpt2sas_phy; i++) {
983 if (ioc->sas_hba.phy[i].phy != phy)
984 continue;
985 mpt2sas_phy = &ioc->sas_hba.phy[i];
986 }
987
988 if (!mpt2sas_phy) /* this phy not on sas_host */
989 return -EINVAL;
990
991 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t));
992 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
993 mpi_request.Operation = hard_reset ?
994 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET;
995 mpi_request.PhyNum = mpt2sas_phy->phy_id;
996
997 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) {
998 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
999 ioc->name, __FILE__, __LINE__, __func__);
1000 return -ENXIO;
1001 }
1002
1003 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1004 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
1005 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
1006 mpt2sas_phy->phy_id,
1007 le16_to_cpu(mpi_reply.IOCStatus),
1008 le32_to_cpu(mpi_reply.IOCLogInfo));
1009
1010 return 0;
1011 }
1012
1013 /**
1014 * _transport_smp_handler - transport portal for smp passthru
1015 * @shost: shost object
1016 * @rphy: sas transport rphy object
1017 * @req:
1018 *
1019 * This used primarily for smp_utils.
1020 * Example:
1021 * smp_rep_general /sys/class/bsg/expander-5:0
1022 */
1023 static int
1024 _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1025 struct request *req)
1026 {
1027 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1028 Mpi2SmpPassthroughRequest_t *mpi_request;
1029 Mpi2SmpPassthroughReply_t *mpi_reply;
1030 int rc;
1031 u16 smid;
1032 u32 ioc_state;
1033 unsigned long timeleft;
1034 void *psge;
1035 u32 sgl_flags;
1036 u8 issue_reset = 0;
1037 dma_addr_t dma_addr_in = 0;
1038 dma_addr_t dma_addr_out = 0;
1039 u16 wait_state_count;
1040 struct request *rsp = req->next_rq;
1041
1042 if (!rsp) {
1043 printk(MPT2SAS_ERR_FMT "%s: the smp response space is "
1044 "missing\n", ioc->name, __func__);
1045 return -EINVAL;
1046 }
1047
1048 /* do we need to support multiple segments? */
1049 if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
1050 printk(MPT2SAS_ERR_FMT "%s: multiple segments req %u %u, "
1051 "rsp %u %u\n", ioc->name, __func__, req->bio->bi_vcnt,
1052 blk_rq_bytes(req), rsp->bio->bi_vcnt, blk_rq_bytes(rsp));
1053 return -EINVAL;
1054 }
1055
1056 if (ioc->shost_recovery) {
1057 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1058 __func__, ioc->name);
1059 return -EFAULT;
1060 }
1061
1062 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
1063 if (rc)
1064 return rc;
1065
1066 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
1067 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", ioc->name,
1068 __func__);
1069 rc = -EAGAIN;
1070 goto out;
1071 }
1072 ioc->transport_cmds.status = MPT2_CMD_PENDING;
1073
1074 wait_state_count = 0;
1075 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1076 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1077 if (wait_state_count++ == 10) {
1078 printk(MPT2SAS_ERR_FMT
1079 "%s: failed due to ioc not operational\n",
1080 ioc->name, __func__);
1081 rc = -EFAULT;
1082 goto out;
1083 }
1084 ssleep(1);
1085 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1086 printk(MPT2SAS_INFO_FMT "%s: waiting for "
1087 "operational state(count=%d)\n", ioc->name,
1088 __func__, wait_state_count);
1089 }
1090 if (wait_state_count)
1091 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
1092 ioc->name, __func__);
1093
1094 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
1095 if (!smid) {
1096 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1097 ioc->name, __func__);
1098 rc = -EAGAIN;
1099 goto out;
1100 }
1101
1102 rc = 0;
1103 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1104 ioc->transport_cmds.smid = smid;
1105
1106 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1107 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1108 mpi_request->PhysicalPort = 0xFF;
1109 *((u64 *)&mpi_request->SASAddress) = (rphy) ?
1110 cpu_to_le64(rphy->identify.sas_address) :
1111 cpu_to_le64(ioc->sas_hba.sas_address);
1112 mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4);
1113 psge = &mpi_request->SGL;
1114
1115 /* WRITE sgel first */
1116 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1117 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1118 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1119 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
1120 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
1121 if (!dma_addr_out) {
1122 mpt2sas_base_free_smid(ioc, le16_to_cpu(smid));
1123 goto unmap;
1124 }
1125
1126 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(req) - 4),
1127 dma_addr_out);
1128
1129 /* incr sgel */
1130 psge += ioc->sge_size;
1131
1132 /* READ sgel last */
1133 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1134 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1135 MPI2_SGE_FLAGS_END_OF_LIST);
1136 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1137 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
1138 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
1139 if (!dma_addr_in) {
1140 mpt2sas_base_free_smid(ioc, le16_to_cpu(smid));
1141 goto unmap;
1142 }
1143
1144 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(rsp) + 4),
1145 dma_addr_in);
1146
1147 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - "
1148 "sending smp request\n", ioc->name, __func__));
1149
1150 mpt2sas_base_put_smid_default(ioc, smid, 0 /* VF_ID */);
1151 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
1152 10*HZ);
1153
1154 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
1155 printk(MPT2SAS_ERR_FMT "%s : timeout\n",
1156 __func__, ioc->name);
1157 _debug_dump_mf(mpi_request,
1158 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1159 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
1160 issue_reset = 1;
1161 goto issue_host_reset;
1162 }
1163
1164 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - "
1165 "complete\n", ioc->name, __func__));
1166
1167 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
1168
1169 mpi_reply = ioc->transport_cmds.reply;
1170
1171 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
1172 "%s - reply data transfer size(%d)\n",
1173 ioc->name, __func__,
1174 le16_to_cpu(mpi_reply->ResponseDataLength)));
1175
1176 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply));
1177 req->sense_len = sizeof(*mpi_reply);
1178 req->resid_len = 0;
1179 rsp->resid_len -= mpi_reply->ResponseDataLength;
1180 } else {
1181 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
1182 "%s - no reply\n", ioc->name, __func__));
1183 rc = -ENXIO;
1184 }
1185
1186 issue_host_reset:
1187 if (issue_reset) {
1188 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1189 FORCE_BIG_HAMMER);
1190 rc = -ETIMEDOUT;
1191 }
1192
1193 unmap:
1194 if (dma_addr_out)
1195 pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req),
1196 PCI_DMA_BIDIRECTIONAL);
1197 if (dma_addr_in)
1198 pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp),
1199 PCI_DMA_BIDIRECTIONAL);
1200
1201 out:
1202 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
1203 mutex_unlock(&ioc->transport_cmds.mutex);
1204 return rc;
1205 }
1206
1207 struct sas_function_template mpt2sas_transport_functions = {
1208 .get_linkerrors = _transport_get_linkerrors,
1209 .get_enclosure_identifier = _transport_get_enclosure_identifier,
1210 .get_bay_identifier = _transport_get_bay_identifier,
1211 .phy_reset = _transport_phy_reset,
1212 .smp_handler = _transport_smp_handler,
1213 };
1214
1215 struct scsi_transport_template *mpt2sas_transport_template;
Linux with added FPC-III support