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RT-AC56 3.0.0.4.374.37 core
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / scsi / mpt2sas / mpt2sas_transport.c
blobb55c6dc07470cc65aed1a30979f0e61e86a16aec
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) 2007-2010 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 #include <linux/slab.h>
53
54 #include <scsi/scsi.h>
55 #include <scsi/scsi_cmnd.h>
56 #include <scsi/scsi_device.h>
57 #include <scsi/scsi_host.h>
58 #include <scsi/scsi_transport_sas.h>
59 #include <scsi/scsi_dbg.h>
60
61 #include "mpt2sas_base.h"
62 /**
63 * _transport_sas_node_find_by_sas_address - sas node search
64 * @ioc: per adapter object
65 * @sas_address: sas address of expander or sas host
66 * Context: Calling function should acquire ioc->sas_node_lock.
67 *
68 * Search for either hba phys or expander device based on handle, then returns
69 * the sas_node object.
70 */
71 static struct _sas_node *
72 _transport_sas_node_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
73 u64 sas_address)
74 {
75 if (ioc->sas_hba.sas_address == sas_address)
76 return &ioc->sas_hba;
77 else
78 return mpt2sas_scsih_expander_find_by_sas_address(ioc,
79 sas_address);
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 || ioc->pci_error_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 * @msix_index: MSIX table index supplied by the OS
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 1 meaning mf should be freed from _base_interrupt
222 * 0 means the mf is freed from this function.
223 */
224 u8
225 mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
226 u32 reply)
227 {
228 MPI2DefaultReply_t *mpi_reply;
229
230 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
231 if (ioc->transport_cmds.status == MPT2_CMD_NOT_USED)
232 return 1;
233 if (ioc->transport_cmds.smid != smid)
234 return 1;
235 ioc->transport_cmds.status |= MPT2_CMD_COMPLETE;
236 if (mpi_reply) {
237 memcpy(ioc->transport_cmds.reply, mpi_reply,
238 mpi_reply->MsgLength*4);
239 ioc->transport_cmds.status |= MPT2_CMD_REPLY_VALID;
240 }
241 ioc->transport_cmds.status &= ~MPT2_CMD_PENDING;
242 complete(&ioc->transport_cmds.done);
243 return 1;
244 }
245
246 /* report manufacture request structure */
247 struct rep_manu_request{
248 u8 smp_frame_type;
249 u8 function;
250 u8 reserved;
251 u8 request_length;
252 };
253
254 /* report manufacture reply structure */
255 struct rep_manu_reply{
256 u8 smp_frame_type; /* 0x41 */
257 u8 function; /* 0x01 */
258 u8 function_result;
259 u8 response_length;
260 u16 expander_change_count;
261 u8 reserved0[2];
262 u8 sas_format;
263 u8 reserved2[3];
264 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
265 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
266 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
267 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
268 u16 component_id;
269 u8 component_revision_id;
270 u8 reserved3;
271 u8 vendor_specific[8];
272 };
273
274 /**
275 * _transport_expander_report_manufacture - obtain SMP report_manufacture
276 * @ioc: per adapter object
277 * @sas_address: expander sas address
278 * @edev: the sas_expander_device object
279 *
280 * Fills in the sas_expander_device object when SMP port is created.
281 *
282 * Returns 0 for success, non-zero for failure.
283 */
284 static int
285 _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc,
286 u64 sas_address, struct sas_expander_device *edev)
287 {
288 Mpi2SmpPassthroughRequest_t *mpi_request;
289 Mpi2SmpPassthroughReply_t *mpi_reply;
290 struct rep_manu_reply *manufacture_reply;
291 struct rep_manu_request *manufacture_request;
292 int rc;
293 u16 smid;
294 u32 ioc_state;
295 unsigned long timeleft;
296 void *psge;
297 u32 sgl_flags;
298 u8 issue_reset = 0;
299 void *data_out = NULL;
300 dma_addr_t data_out_dma;
301 u32 sz;
302 u64 *sas_address_le;
303 u16 wait_state_count;
304
305 if (ioc->shost_recovery || ioc->pci_error_recovery) {
306 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
307 __func__, ioc->name);
308 return -EFAULT;
309 }
310
311 mutex_lock(&ioc->transport_cmds.mutex);
312
313 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
314 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
315 ioc->name, __func__);
316 rc = -EAGAIN;
317 goto out;
318 }
319 ioc->transport_cmds.status = MPT2_CMD_PENDING;
320
321 wait_state_count = 0;
322 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
323 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
324 if (wait_state_count++ == 10) {
325 printk(MPT2SAS_ERR_FMT
326 "%s: failed due to ioc not operational\n",
327 ioc->name, __func__);
328 rc = -EFAULT;
329 goto out;
330 }
331 ssleep(1);
332 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
333 printk(MPT2SAS_INFO_FMT "%s: waiting for "
334 "operational state(count=%d)\n", ioc->name,
335 __func__, wait_state_count);
336 }
337 if (wait_state_count)
338 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
339 ioc->name, __func__);
340
341 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
342 if (!smid) {
343 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
344 ioc->name, __func__);
345 rc = -EAGAIN;
346 goto out;
347 }
348
349 rc = 0;
350 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
351 ioc->transport_cmds.smid = smid;
352
353 sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply);
354 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
355
356 if (!data_out) {
357 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
358 __LINE__, __func__);
359 rc = -ENOMEM;
360 mpt2sas_base_free_smid(ioc, smid);
361 goto out;
362 }
363
364 manufacture_request = data_out;
365 manufacture_request->smp_frame_type = 0x40;
366 manufacture_request->function = 1;
367 manufacture_request->reserved = 0;
368 manufacture_request->request_length = 0;
369
370 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
371 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
372 mpi_request->PhysicalPort = 0xFF;
373 mpi_request->VF_ID = 0; /* TODO */
374 mpi_request->VP_ID = 0;
375 sas_address_le = (u64 *)&mpi_request->SASAddress;
376 *sas_address_le = cpu_to_le64(sas_address);
377 mpi_request->RequestDataLength =
378 cpu_to_le16(sizeof(struct rep_manu_request));
379 psge = &mpi_request->SGL;
380
381 /* WRITE sgel first */
382 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
383 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
384 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
385 ioc->base_add_sg_single(psge, sgl_flags |
386 sizeof(struct rep_manu_request), data_out_dma);
387
388 /* incr sgel */
389 psge += ioc->sge_size;
390
391 /* READ sgel last */
392 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
393 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
394 MPI2_SGE_FLAGS_END_OF_LIST);
395 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
396 ioc->base_add_sg_single(psge, sgl_flags |
397 sizeof(struct rep_manu_reply), data_out_dma +
398 sizeof(struct rep_manu_request));
399
400 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "report_manufacture - "
401 "send to sas_addr(0x%016llx)\n", ioc->name,
402 (unsigned long long)sas_address));
403 mpt2sas_base_put_smid_default(ioc, smid);
404 init_completion(&ioc->transport_cmds.done);
405 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
406 10*HZ);
407
408 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
409 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
410 ioc->name, __func__);
411 _debug_dump_mf(mpi_request,
412 sizeof(Mpi2SmpPassthroughRequest_t)/4);
413 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
414 issue_reset = 1;
415 goto issue_host_reset;
416 }
417
418 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "report_manufacture - "
419 "complete\n", ioc->name));
420
421 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
422 u8 *tmp;
423
424 mpi_reply = ioc->transport_cmds.reply;
425
426 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
427 "report_manufacture - reply data transfer size(%d)\n",
428 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
429
430 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
431 sizeof(struct rep_manu_reply))
432 goto out;
433
434 manufacture_reply = data_out + sizeof(struct rep_manu_request);
435 strncpy(edev->vendor_id, manufacture_reply->vendor_id,
436 SAS_EXPANDER_VENDOR_ID_LEN);
437 strncpy(edev->product_id, manufacture_reply->product_id,
438 SAS_EXPANDER_PRODUCT_ID_LEN);
439 strncpy(edev->product_rev, manufacture_reply->product_rev,
440 SAS_EXPANDER_PRODUCT_REV_LEN);
441 edev->level = manufacture_reply->sas_format & 1;
442 if (edev->level) {
443 strncpy(edev->component_vendor_id,
444 manufacture_reply->component_vendor_id,
445 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
446 tmp = (u8 *)&manufacture_reply->component_id;
447 edev->component_id = tmp[0] << 8 | tmp[1];
448 edev->component_revision_id =
449 manufacture_reply->component_revision_id;
450 }
451 } else
452 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
453 "report_manufacture - no reply\n", ioc->name));
454
455 issue_host_reset:
456 if (issue_reset)
457 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
458 FORCE_BIG_HAMMER);
459 out:
460 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
461 if (data_out)
462 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
463
464 mutex_unlock(&ioc->transport_cmds.mutex);
465 return rc;
466 }
467
468
469 /**
470 * _transport_delete_duplicate_port - (see below description)
471 * @ioc: per adapter object
472 * @sas_node: sas node object (either expander or sas host)
473 * @sas_address: sas address of device being added
474 * @phy_num: phy number
475 *
476 * This function is called when attempting to add a new port that is claiming
477 * the same phy resources already in use by another port. If we don't release
478 * the claimed phy resources, the sas transport layer will hang from the BUG
479 * in sas_port_add_phy.
480 *
481 * The reason we would hit this issue is becuase someone is changing the
482 * sas address of a device on the fly, meanwhile controller firmware sends
483 * EVENTs out of order when removing the previous instance of the device.
484 */
485 static void
486 _transport_delete_duplicate_port(struct MPT2SAS_ADAPTER *ioc,
487 struct _sas_node *sas_node, u64 sas_address, int phy_num)
488 {
489 struct _sas_port *mpt2sas_port, *mpt2sas_port_duplicate;
490 struct _sas_phy *mpt2sas_phy;
491
492 printk(MPT2SAS_ERR_FMT "new device located at sas_addr(0x%016llx), "
493 "phy_id(%d)\n", ioc->name, (unsigned long long)sas_address,
494 phy_num);
495
496 mpt2sas_port_duplicate = NULL;
497 list_for_each_entry(mpt2sas_port, &sas_node->sas_port_list, port_list) {
498 dev_printk(KERN_ERR, &mpt2sas_port->port->dev,
499 "existing device at sas_addr(0x%016llx), num_phys(%d)\n",
500 (unsigned long long)
501 mpt2sas_port->remote_identify.sas_address,
502 mpt2sas_port->num_phys);
503 list_for_each_entry(mpt2sas_phy, &mpt2sas_port->phy_list,
504 port_siblings) {
505 dev_printk(KERN_ERR, &mpt2sas_phy->phy->dev,
506 "phy_number(%d)\n", mpt2sas_phy->phy_id);
507 if (mpt2sas_phy->phy_id == phy_num)
508 mpt2sas_port_duplicate = mpt2sas_port;
509 }
510 }
511
512 if (!mpt2sas_port_duplicate)
513 return;
514
515 dev_printk(KERN_ERR, &mpt2sas_port_duplicate->port->dev,
516 "deleting duplicate device at sas_addr(0x%016llx), phy(%d)!!!!\n",
517 (unsigned long long)
518 mpt2sas_port_duplicate->remote_identify.sas_address, phy_num);
519 ioc->logging_level |= MPT_DEBUG_TRANSPORT;
520 mpt2sas_transport_port_remove(ioc,
521 mpt2sas_port_duplicate->remote_identify.sas_address,
522 sas_node->sas_address);
523 ioc->logging_level &= ~MPT_DEBUG_TRANSPORT;
524 }
525
526 /**
527 * _transport_sanity_check - sanity check when adding a new port
528 * @ioc: per adapter object
529 * @sas_node: sas node object (either expander or sas host)
530 * @sas_address: sas address of device being added
531 *
532 * See the explanation above from _transport_delete_duplicate_port
533 */
534 static void
535 _transport_sanity_check(struct MPT2SAS_ADAPTER *ioc, struct _sas_node *sas_node,
536 u64 sas_address)
537 {
538 int i;
539
540 for (i = 0; i < sas_node->num_phys; i++)
541 if (sas_node->phy[i].remote_identify.sas_address == sas_address)
542 if (sas_node->phy[i].phy_belongs_to_port)
543 _transport_delete_duplicate_port(ioc, sas_node,
544 sas_address, i);
545 }
546
547 /**
548 * mpt2sas_transport_port_add - insert port to the list
549 * @ioc: per adapter object
550 * @handle: handle of attached device
551 * @sas_address: sas address of parent expander or sas host
552 * Context: This function will acquire ioc->sas_node_lock.
553 *
554 * Adding new port object to the sas_node->sas_port_list.
555 *
556 * Returns mpt2sas_port.
557 */
558 struct _sas_port *
559 mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle,
560 u64 sas_address)
561 {
562 struct _sas_phy *mpt2sas_phy, *next;
563 struct _sas_port *mpt2sas_port;
564 unsigned long flags;
565 struct _sas_node *sas_node;
566 struct sas_rphy *rphy;
567 int i;
568 struct sas_port *port;
569
570 mpt2sas_port = kzalloc(sizeof(struct _sas_port),
571 GFP_KERNEL);
572 if (!mpt2sas_port) {
573 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
574 ioc->name, __FILE__, __LINE__, __func__);
575 return NULL;
576 }
577
578 INIT_LIST_HEAD(&mpt2sas_port->port_list);
579 INIT_LIST_HEAD(&mpt2sas_port->phy_list);
580 spin_lock_irqsave(&ioc->sas_node_lock, flags);
581 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
582 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
583
584 if (!sas_node) {
585 printk(MPT2SAS_ERR_FMT "%s: Could not find "
586 "parent sas_address(0x%016llx)!\n", ioc->name,
587 __func__, (unsigned long long)sas_address);
588 goto out_fail;
589 }
590
591 if ((_transport_set_identify(ioc, handle,
592 &mpt2sas_port->remote_identify))) {
593 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
594 ioc->name, __FILE__, __LINE__, __func__);
595 goto out_fail;
596 }
597
598 if (mpt2sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
599 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
600 ioc->name, __FILE__, __LINE__, __func__);
601 goto out_fail;
602 }
603
604 _transport_sanity_check(ioc, sas_node,
605 mpt2sas_port->remote_identify.sas_address);
606
607 for (i = 0; i < sas_node->num_phys; i++) {
608 if (sas_node->phy[i].remote_identify.sas_address !=
609 mpt2sas_port->remote_identify.sas_address)
610 continue;
611 list_add_tail(&sas_node->phy[i].port_siblings,
612 &mpt2sas_port->phy_list);
613 mpt2sas_port->num_phys++;
614 }
615
616 if (!mpt2sas_port->num_phys) {
617 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
618 ioc->name, __FILE__, __LINE__, __func__);
619 goto out_fail;
620 }
621
622 port = sas_port_alloc_num(sas_node->parent_dev);
623 if ((sas_port_add(port))) {
624 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
625 ioc->name, __FILE__, __LINE__, __func__);
626 goto out_fail;
627 }
628
629 list_for_each_entry(mpt2sas_phy, &mpt2sas_port->phy_list,
630 port_siblings) {
631 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
632 dev_printk(KERN_INFO, &port->dev, "add: handle(0x%04x)"
633 ", sas_addr(0x%016llx), phy(%d)\n", handle,
634 (unsigned long long)
635 mpt2sas_port->remote_identify.sas_address,
636 mpt2sas_phy->phy_id);
637 sas_port_add_phy(port, mpt2sas_phy->phy);
638 mpt2sas_phy->phy_belongs_to_port = 1;
639 }
640
641 mpt2sas_port->port = port;
642 if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE)
643 rphy = sas_end_device_alloc(port);
644 else
645 rphy = sas_expander_alloc(port,
646 mpt2sas_port->remote_identify.device_type);
647
648 rphy->identify = mpt2sas_port->remote_identify;
649 if ((sas_rphy_add(rphy))) {
650 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
651 ioc->name, __FILE__, __LINE__, __func__);
652 }
653 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
654 dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), "
655 "sas_addr(0x%016llx)\n", handle,
656 (unsigned long long)
657 mpt2sas_port->remote_identify.sas_address);
658 mpt2sas_port->rphy = rphy;
659 spin_lock_irqsave(&ioc->sas_node_lock, flags);
660 list_add_tail(&mpt2sas_port->port_list, &sas_node->sas_port_list);
661 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
662
663 /* fill in report manufacture */
664 if (mpt2sas_port->remote_identify.device_type ==
665 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
666 mpt2sas_port->remote_identify.device_type ==
667 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER)
668 _transport_expander_report_manufacture(ioc,
669 mpt2sas_port->remote_identify.sas_address,
670 rphy_to_expander_device(rphy));
671
672 return mpt2sas_port;
673
674 out_fail:
675 list_for_each_entry_safe(mpt2sas_phy, next, &mpt2sas_port->phy_list,
676 port_siblings)
677 list_del(&mpt2sas_phy->port_siblings);
678 kfree(mpt2sas_port);
679 return NULL;
680 }
681
682 /**
683 * mpt2sas_transport_port_remove - remove port from the list
684 * @ioc: per adapter object
685 * @sas_address: sas address of attached device
686 * @sas_address_parent: sas address of parent expander or sas host
687 * Context: This function will acquire ioc->sas_node_lock.
688 *
689 * Removing object and freeing associated memory from the
690 * ioc->sas_port_list.
691 *
692 * Return nothing.
693 */
694 void
695 mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
696 u64 sas_address_parent)
697 {
698 int i;
699 unsigned long flags;
700 struct _sas_port *mpt2sas_port, *next;
701 struct _sas_node *sas_node;
702 u8 found = 0;
703 struct _sas_phy *mpt2sas_phy, *next_phy;
704
705 spin_lock_irqsave(&ioc->sas_node_lock, flags);
706 sas_node = _transport_sas_node_find_by_sas_address(ioc,
707 sas_address_parent);
708 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
709 if (!sas_node)
710 return;
711 list_for_each_entry_safe(mpt2sas_port, next, &sas_node->sas_port_list,
712 port_list) {
713 if (mpt2sas_port->remote_identify.sas_address != sas_address)
714 continue;
715 found = 1;
716 list_del(&mpt2sas_port->port_list);
717 goto out;
718 }
719 out:
720 if (!found)
721 return;
722
723 for (i = 0; i < sas_node->num_phys; i++) {
724 if (sas_node->phy[i].remote_identify.sas_address == sas_address)
725 memset(&sas_node->phy[i].remote_identify, 0 ,
726 sizeof(struct sas_identify));
727 }
728
729 list_for_each_entry_safe(mpt2sas_phy, next_phy,
730 &mpt2sas_port->phy_list, port_siblings) {
731 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
732 dev_printk(KERN_INFO, &mpt2sas_port->port->dev,
733 "remove: sas_addr(0x%016llx), phy(%d)\n",
734 (unsigned long long)
735 mpt2sas_port->remote_identify.sas_address,
736 mpt2sas_phy->phy_id);
737 mpt2sas_phy->phy_belongs_to_port = 0;
738 sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy);
739 list_del(&mpt2sas_phy->port_siblings);
740 }
741 sas_port_delete(mpt2sas_port->port);
742 kfree(mpt2sas_port);
743 }
744
745 /**
746 * mpt2sas_transport_add_host_phy - report sas_host phy to transport
747 * @ioc: per adapter object
748 * @mpt2sas_phy: mpt2sas per phy object
749 * @phy_pg0: sas phy page 0
750 * @parent_dev: parent device class object
751 *
752 * Returns 0 for success, non-zero for failure.
753 */
754 int
755 mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
756 *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev)
757 {
758 struct sas_phy *phy;
759 int phy_index = mpt2sas_phy->phy_id;
760
761
762 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
763 phy = sas_phy_alloc(parent_dev, phy_index);
764 if (!phy) {
765 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
766 ioc->name, __FILE__, __LINE__, __func__);
767 return -1;
768 }
769 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
770 &mpt2sas_phy->identify))) {
771 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
772 ioc->name, __FILE__, __LINE__, __func__);
773 return -1;
774 }
775 phy->identify = mpt2sas_phy->identify;
776 mpt2sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle);
777 if (mpt2sas_phy->attached_handle)
778 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
779 &mpt2sas_phy->remote_identify);
780 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
781 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
782 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
783 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
784 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
785 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
786 phy_pg0.HwLinkRate >> 4);
787 phy->minimum_linkrate = _transport_convert_phy_link_rate(
788 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
789 phy->maximum_linkrate = _transport_convert_phy_link_rate(
790 phy_pg0.ProgrammedLinkRate >> 4);
791
792 if ((sas_phy_add(phy))) {
793 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
794 ioc->name, __FILE__, __LINE__, __func__);
795 sas_phy_free(phy);
796 return -1;
797 }
798 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
799 dev_printk(KERN_INFO, &phy->dev,
800 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
801 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
802 mpt2sas_phy->handle, (unsigned long long)
803 mpt2sas_phy->identify.sas_address,
804 mpt2sas_phy->attached_handle,
805 (unsigned long long)
806 mpt2sas_phy->remote_identify.sas_address);
807 mpt2sas_phy->phy = phy;
808 return 0;
809 }
810
811
812 /**
813 * mpt2sas_transport_add_expander_phy - report expander phy to transport
814 * @ioc: per adapter object
815 * @mpt2sas_phy: mpt2sas per phy object
816 * @expander_pg1: expander page 1
817 * @parent_dev: parent device class object
818 *
819 * Returns 0 for success, non-zero for failure.
820 */
821 int
822 mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
823 *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev)
824 {
825 struct sas_phy *phy;
826 int phy_index = mpt2sas_phy->phy_id;
827
828 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
829 phy = sas_phy_alloc(parent_dev, phy_index);
830 if (!phy) {
831 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
832 ioc->name, __FILE__, __LINE__, __func__);
833 return -1;
834 }
835 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
836 &mpt2sas_phy->identify))) {
837 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
838 ioc->name, __FILE__, __LINE__, __func__);
839 return -1;
840 }
841 phy->identify = mpt2sas_phy->identify;
842 mpt2sas_phy->attached_handle =
843 le16_to_cpu(expander_pg1.AttachedDevHandle);
844 if (mpt2sas_phy->attached_handle)
845 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
846 &mpt2sas_phy->remote_identify);
847 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
848 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
849 expander_pg1.NegotiatedLinkRate &
850 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
851 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
852 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
853 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
854 expander_pg1.HwLinkRate >> 4);
855 phy->minimum_linkrate = _transport_convert_phy_link_rate(
856 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
857 phy->maximum_linkrate = _transport_convert_phy_link_rate(
858 expander_pg1.ProgrammedLinkRate >> 4);
859
860 if ((sas_phy_add(phy))) {
861 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
862 ioc->name, __FILE__, __LINE__, __func__);
863 sas_phy_free(phy);
864 return -1;
865 }
866 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
867 dev_printk(KERN_INFO, &phy->dev,
868 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
869 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
870 mpt2sas_phy->handle, (unsigned long long)
871 mpt2sas_phy->identify.sas_address,
872 mpt2sas_phy->attached_handle,
873 (unsigned long long)
874 mpt2sas_phy->remote_identify.sas_address);
875 mpt2sas_phy->phy = phy;
876 return 0;
877 }
878
879 /**
880 * mpt2sas_transport_update_links - refreshing phy link changes
881 * @ioc: per adapter object
882 * @sas_address: sas address of parent expander or sas host
883 * @handle: attached device handle
884 * @phy_numberv: phy number
885 * @link_rate: new link rate
886 *
887 * Returns nothing.
888 */
889 void
890 mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
891 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate)
892 {
893 unsigned long flags;
894 struct _sas_node *sas_node;
895 struct _sas_phy *mpt2sas_phy;
896
897 if (ioc->shost_recovery || ioc->pci_error_recovery)
898 return;
899
900 spin_lock_irqsave(&ioc->sas_node_lock, flags);
901 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
902 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
903 if (!sas_node)
904 return;
905
906 mpt2sas_phy = &sas_node->phy[phy_number];
907 mpt2sas_phy->attached_handle = handle;
908 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5))
909 _transport_set_identify(ioc, handle,
910 &mpt2sas_phy->remote_identify);
911 else
912 memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
913 sas_identify));
914
915 if (mpt2sas_phy->phy)
916 mpt2sas_phy->phy->negotiated_linkrate =
917 _transport_convert_phy_link_rate(link_rate);
918
919 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
920 dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev,
921 "refresh: parent sas_addr(0x%016llx),\n"
922 "\tlink_rate(0x%02x), phy(%d)\n"
923 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
924 (unsigned long long)sas_address,
925 link_rate, phy_number, handle, (unsigned long long)
926 mpt2sas_phy->remote_identify.sas_address);
927 }
928
929 static inline void *
930 phy_to_ioc(struct sas_phy *phy)
931 {
932 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
933 return shost_priv(shost);
934 }
935
936 static inline void *
937 rphy_to_ioc(struct sas_rphy *rphy)
938 {
939 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
940 return shost_priv(shost);
941 }
942
943
944 /* report phy error log structure */
945 struct phy_error_log_request{
946 u8 smp_frame_type; /* 0x40 */
947 u8 function; /* 0x11 */
948 u8 allocated_response_length;
949 u8 request_length; /* 02 */
950 u8 reserved_1[5];
951 u8 phy_identifier;
952 u8 reserved_2[2];
953 };
954
955 /* report phy error log reply structure */
956 struct phy_error_log_reply{
957 u8 smp_frame_type; /* 0x41 */
958 u8 function; /* 0x11 */
959 u8 function_result;
960 u8 response_length;
961 u16 expander_change_count;
962 u8 reserved_1[3];
963 u8 phy_identifier;
964 u8 reserved_2[2];
965 u32 invalid_dword;
966 u32 running_disparity_error;
967 u32 loss_of_dword_sync;
968 u32 phy_reset_problem;
969 };
970
971 /**
972 * _transport_get_expander_phy_error_log - return expander counters
973 * @ioc: per adapter object
974 * @phy: The sas phy object
975 *
976 * Returns 0 for success, non-zero for failure.
977 *
978 */
979 static int
980 _transport_get_expander_phy_error_log(struct MPT2SAS_ADAPTER *ioc,
981 struct sas_phy *phy)
982 {
983 Mpi2SmpPassthroughRequest_t *mpi_request;
984 Mpi2SmpPassthroughReply_t *mpi_reply;
985 struct phy_error_log_request *phy_error_log_request;
986 struct phy_error_log_reply *phy_error_log_reply;
987 int rc;
988 u16 smid;
989 u32 ioc_state;
990 unsigned long timeleft;
991 void *psge;
992 u32 sgl_flags;
993 u8 issue_reset = 0;
994 void *data_out = NULL;
995 dma_addr_t data_out_dma;
996 u32 sz;
997 u64 *sas_address_le;
998 u16 wait_state_count;
999
1000 if (ioc->shost_recovery || ioc->pci_error_recovery) {
1001 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1002 __func__, ioc->name);
1003 return -EFAULT;
1004 }
1005
1006 mutex_lock(&ioc->transport_cmds.mutex);
1007
1008 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
1009 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
1010 ioc->name, __func__);
1011 rc = -EAGAIN;
1012 goto out;
1013 }
1014 ioc->transport_cmds.status = MPT2_CMD_PENDING;
1015
1016 wait_state_count = 0;
1017 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1018 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1019 if (wait_state_count++ == 10) {
1020 printk(MPT2SAS_ERR_FMT
1021 "%s: failed due to ioc not operational\n",
1022 ioc->name, __func__);
1023 rc = -EFAULT;
1024 goto out;
1025 }
1026 ssleep(1);
1027 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1028 printk(MPT2SAS_INFO_FMT "%s: waiting for "
1029 "operational state(count=%d)\n", ioc->name,
1030 __func__, wait_state_count);
1031 }
1032 if (wait_state_count)
1033 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
1034 ioc->name, __func__);
1035
1036 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
1037 if (!smid) {
1038 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1039 ioc->name, __func__);
1040 rc = -EAGAIN;
1041 goto out;
1042 }
1043
1044 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1045 ioc->transport_cmds.smid = smid;
1046
1047 sz = sizeof(struct phy_error_log_request) +
1048 sizeof(struct phy_error_log_reply);
1049 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
1050 if (!data_out) {
1051 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
1052 __LINE__, __func__);
1053 rc = -ENOMEM;
1054 mpt2sas_base_free_smid(ioc, smid);
1055 goto out;
1056 }
1057
1058 rc = -EINVAL;
1059 memset(data_out, 0, sz);
1060 phy_error_log_request = data_out;
1061 phy_error_log_request->smp_frame_type = 0x40;
1062 phy_error_log_request->function = 0x11;
1063 phy_error_log_request->request_length = 2;
1064 phy_error_log_request->allocated_response_length = 0;
1065 phy_error_log_request->phy_identifier = phy->number;
1066
1067 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1068 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1069 mpi_request->PhysicalPort = 0xFF;
1070 mpi_request->VF_ID = 0; /* TODO */
1071 mpi_request->VP_ID = 0;
1072 sas_address_le = (u64 *)&mpi_request->SASAddress;
1073 *sas_address_le = cpu_to_le64(phy->identify.sas_address);
1074 mpi_request->RequestDataLength =
1075 cpu_to_le16(sizeof(struct phy_error_log_request));
1076 psge = &mpi_request->SGL;
1077
1078 /* WRITE sgel first */
1079 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1080 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1081 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1082 ioc->base_add_sg_single(psge, sgl_flags |
1083 sizeof(struct phy_error_log_request), data_out_dma);
1084
1085 /* incr sgel */
1086 psge += ioc->sge_size;
1087
1088 /* READ sgel last */
1089 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1090 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1091 MPI2_SGE_FLAGS_END_OF_LIST);
1092 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1093 ioc->base_add_sg_single(psge, sgl_flags |
1094 sizeof(struct phy_error_log_reply), data_out_dma +
1095 sizeof(struct phy_error_log_request));
1096
1097 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - "
1098 "send to sas_addr(0x%016llx), phy(%d)\n", ioc->name,
1099 (unsigned long long)phy->identify.sas_address, phy->number));
1100 mpt2sas_base_put_smid_default(ioc, smid);
1101 init_completion(&ioc->transport_cmds.done);
1102 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
1103 10*HZ);
1104
1105 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
1106 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1107 ioc->name, __func__);
1108 _debug_dump_mf(mpi_request,
1109 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1110 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
1111 issue_reset = 1;
1112 goto issue_host_reset;
1113 }
1114
1115 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - "
1116 "complete\n", ioc->name));
1117
1118 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
1119
1120 mpi_reply = ioc->transport_cmds.reply;
1121
1122 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1123 "phy_error_log - reply data transfer size(%d)\n",
1124 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
1125
1126 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
1127 sizeof(struct phy_error_log_reply))
1128 goto out;
1129
1130 phy_error_log_reply = data_out +
1131 sizeof(struct phy_error_log_request);
1132
1133 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1134 "phy_error_log - function_result(%d)\n",
1135 ioc->name, phy_error_log_reply->function_result));
1136
1137 phy->invalid_dword_count =
1138 be32_to_cpu(phy_error_log_reply->invalid_dword);
1139 phy->running_disparity_error_count =
1140 be32_to_cpu(phy_error_log_reply->running_disparity_error);
1141 phy->loss_of_dword_sync_count =
1142 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
1143 phy->phy_reset_problem_count =
1144 be32_to_cpu(phy_error_log_reply->phy_reset_problem);
1145 rc = 0;
1146 } else
1147 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1148 "phy_error_log - no reply\n", ioc->name));
1149
1150 issue_host_reset:
1151 if (issue_reset)
1152 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1153 FORCE_BIG_HAMMER);
1154 out:
1155 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
1156 if (data_out)
1157 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
1158
1159 mutex_unlock(&ioc->transport_cmds.mutex);
1160 return rc;
1161 }
1162
1163 /**
1164 * _transport_get_linkerrors - return phy counters for both hba and expanders
1165 * @phy: The sas phy object
1166 *
1167 * Returns 0 for success, non-zero for failure.
1168 *
1169 */
1170 static int
1171 _transport_get_linkerrors(struct sas_phy *phy)
1172 {
1173 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
1174 unsigned long flags;
1175 Mpi2ConfigReply_t mpi_reply;
1176 Mpi2SasPhyPage1_t phy_pg1;
1177
1178 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1179 if (_transport_sas_node_find_by_sas_address(ioc,
1180 phy->identify.sas_address) == NULL) {
1181 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1182 return -EINVAL;
1183 }
1184 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1185
1186 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1187 return _transport_get_expander_phy_error_log(ioc, phy);
1188
1189 /* get hba phy error logs */
1190 if ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
1191 phy->number))) {
1192 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1193 ioc->name, __FILE__, __LINE__, __func__);
1194 return -ENXIO;
1195 }
1196
1197 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1198 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
1199 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
1200 phy->number, le16_to_cpu(mpi_reply.IOCStatus),
1201 le32_to_cpu(mpi_reply.IOCLogInfo));
1202
1203 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
1204 phy->running_disparity_error_count =
1205 le32_to_cpu(phy_pg1.RunningDisparityErrorCount);
1206 phy->loss_of_dword_sync_count =
1207 le32_to_cpu(phy_pg1.LossDwordSynchCount);
1208 phy->phy_reset_problem_count =
1209 le32_to_cpu(phy_pg1.PhyResetProblemCount);
1210 return 0;
1211 }
1212
1213 /**
1214 * _transport_get_enclosure_identifier -
1215 * @phy: The sas phy object
1216 *
1217 * Obtain the enclosure logical id for an expander.
1218 * Returns 0 for success, non-zero for failure.
1219 */
1220 static int
1221 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
1222 {
1223 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
1224 struct _sas_device *sas_device;
1225 unsigned long flags;
1226
1227 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1228 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1229 rphy->identify.sas_address);
1230 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1231
1232 if (!sas_device)
1233 return -ENXIO;
1234
1235 *identifier = sas_device->enclosure_logical_id;
1236 return 0;
1237 }
1238
1239 /**
1240 * _transport_get_bay_identifier -
1241 * @phy: The sas phy object
1242 *
1243 * Returns the slot id for a device that resides inside an enclosure.
1244 */
1245 static int
1246 _transport_get_bay_identifier(struct sas_rphy *rphy)
1247 {
1248 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
1249 struct _sas_device *sas_device;
1250 unsigned long flags;
1251
1252 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1253 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1254 rphy->identify.sas_address);
1255 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1256
1257 if (!sas_device)
1258 return -ENXIO;
1259
1260 return sas_device->slot;
1261 }
1262
1263 /* phy control request structure */
1264 struct phy_control_request{
1265 u8 smp_frame_type; /* 0x40 */
1266 u8 function; /* 0x91 */
1267 u8 allocated_response_length;
1268 u8 request_length; /* 0x09 */
1269 u16 expander_change_count;
1270 u8 reserved_1[3];
1271 u8 phy_identifier;
1272 u8 phy_operation;
1273 u8 reserved_2[13];
1274 u64 attached_device_name;
1275 u8 programmed_min_physical_link_rate;
1276 u8 programmed_max_physical_link_rate;
1277 u8 reserved_3[6];
1278 };
1279
1280 /* phy control reply structure */
1281 struct phy_control_reply{
1282 u8 smp_frame_type; /* 0x41 */
1283 u8 function; /* 0x11 */
1284 u8 function_result;
1285 u8 response_length;
1286 };
1287
1288 #define SMP_PHY_CONTROL_LINK_RESET (0x01)
1289 #define SMP_PHY_CONTROL_HARD_RESET (0x02)
1290 #define SMP_PHY_CONTROL_DISABLE (0x03)
1291
1292 /**
1293 * _transport_expander_phy_control - expander phy control
1294 * @ioc: per adapter object
1295 * @phy: The sas phy object
1296 *
1297 * Returns 0 for success, non-zero for failure.
1298 *
1299 */
1300 static int
1301 _transport_expander_phy_control(struct MPT2SAS_ADAPTER *ioc,
1302 struct sas_phy *phy, u8 phy_operation)
1303 {
1304 Mpi2SmpPassthroughRequest_t *mpi_request;
1305 Mpi2SmpPassthroughReply_t *mpi_reply;
1306 struct phy_control_request *phy_control_request;
1307 struct phy_control_reply *phy_control_reply;
1308 int rc;
1309 u16 smid;
1310 u32 ioc_state;
1311 unsigned long timeleft;
1312 void *psge;
1313 u32 sgl_flags;
1314 u8 issue_reset = 0;
1315 void *data_out = NULL;
1316 dma_addr_t data_out_dma;
1317 u32 sz;
1318 u64 *sas_address_le;
1319 u16 wait_state_count;
1320
1321 if (ioc->shost_recovery) {
1322 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1323 __func__, ioc->name);
1324 return -EFAULT;
1325 }
1326
1327 mutex_lock(&ioc->transport_cmds.mutex);
1328
1329 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
1330 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
1331 ioc->name, __func__);
1332 rc = -EAGAIN;
1333 goto out;
1334 }
1335 ioc->transport_cmds.status = MPT2_CMD_PENDING;
1336
1337 wait_state_count = 0;
1338 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1339 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1340 if (wait_state_count++ == 10) {
1341 printk(MPT2SAS_ERR_FMT
1342 "%s: failed due to ioc not operational\n",
1343 ioc->name, __func__);
1344 rc = -EFAULT;
1345 goto out;
1346 }
1347 ssleep(1);
1348 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1349 printk(MPT2SAS_INFO_FMT "%s: waiting for "
1350 "operational state(count=%d)\n", ioc->name,
1351 __func__, wait_state_count);
1352 }
1353 if (wait_state_count)
1354 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
1355 ioc->name, __func__);
1356
1357 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
1358 if (!smid) {
1359 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1360 ioc->name, __func__);
1361 rc = -EAGAIN;
1362 goto out;
1363 }
1364
1365 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1366 ioc->transport_cmds.smid = smid;
1367
1368 sz = sizeof(struct phy_control_request) +
1369 sizeof(struct phy_control_reply);
1370 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
1371 if (!data_out) {
1372 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
1373 __LINE__, __func__);
1374 rc = -ENOMEM;
1375 mpt2sas_base_free_smid(ioc, smid);
1376 goto out;
1377 }
1378
1379 rc = -EINVAL;
1380 memset(data_out, 0, sz);
1381 phy_control_request = data_out;
1382 phy_control_request->smp_frame_type = 0x40;
1383 phy_control_request->function = 0x91;
1384 phy_control_request->request_length = 9;
1385 phy_control_request->allocated_response_length = 0;
1386 phy_control_request->phy_identifier = phy->number;
1387 phy_control_request->phy_operation = phy_operation;
1388 phy_control_request->programmed_min_physical_link_rate =
1389 phy->minimum_linkrate << 4;
1390 phy_control_request->programmed_max_physical_link_rate =
1391 phy->maximum_linkrate << 4;
1392
1393 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1394 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1395 mpi_request->PhysicalPort = 0xFF;
1396 mpi_request->VF_ID = 0; /* TODO */
1397 mpi_request->VP_ID = 0;
1398 sas_address_le = (u64 *)&mpi_request->SASAddress;
1399 *sas_address_le = cpu_to_le64(phy->identify.sas_address);
1400 mpi_request->RequestDataLength =
1401 cpu_to_le16(sizeof(struct phy_error_log_request));
1402 psge = &mpi_request->SGL;
1403
1404 /* WRITE sgel first */
1405 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1406 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1407 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1408 ioc->base_add_sg_single(psge, sgl_flags |
1409 sizeof(struct phy_control_request), data_out_dma);
1410
1411 /* incr sgel */
1412 psge += ioc->sge_size;
1413
1414 /* READ sgel last */
1415 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1416 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1417 MPI2_SGE_FLAGS_END_OF_LIST);
1418 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1419 ioc->base_add_sg_single(psge, sgl_flags |
1420 sizeof(struct phy_control_reply), data_out_dma +
1421 sizeof(struct phy_control_request));
1422
1423 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_control - "
1424 "send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", ioc->name,
1425 (unsigned long long)phy->identify.sas_address, phy->number,
1426 phy_operation));
1427 mpt2sas_base_put_smid_default(ioc, smid);
1428 init_completion(&ioc->transport_cmds.done);
1429 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
1430 10*HZ);
1431
1432 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
1433 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1434 ioc->name, __func__);
1435 _debug_dump_mf(mpi_request,
1436 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1437 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
1438 issue_reset = 1;
1439 goto issue_host_reset;
1440 }
1441
1442 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_control - "
1443 "complete\n", ioc->name));
1444
1445 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
1446
1447 mpi_reply = ioc->transport_cmds.reply;
1448
1449 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1450 "phy_control - reply data transfer size(%d)\n",
1451 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
1452
1453 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
1454 sizeof(struct phy_control_reply))
1455 goto out;
1456
1457 phy_control_reply = data_out +
1458 sizeof(struct phy_control_request);
1459
1460 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1461 "phy_control - function_result(%d)\n",
1462 ioc->name, phy_control_reply->function_result));
1463
1464 rc = 0;
1465 } else
1466 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1467 "phy_control - no reply\n", ioc->name));
1468
1469 issue_host_reset:
1470 if (issue_reset)
1471 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1472 FORCE_BIG_HAMMER);
1473 out:
1474 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
1475 if (data_out)
1476 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
1477
1478 mutex_unlock(&ioc->transport_cmds.mutex);
1479 return rc;
1480 }
1481
1482 /**
1483 * _transport_phy_reset -
1484 * @phy: The sas phy object
1485 * @hard_reset:
1486 *
1487 * Returns 0 for success, non-zero for failure.
1488 */
1489 static int
1490 _transport_phy_reset(struct sas_phy *phy, int hard_reset)
1491 {
1492 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
1493 Mpi2SasIoUnitControlReply_t mpi_reply;
1494 Mpi2SasIoUnitControlRequest_t mpi_request;
1495 unsigned long flags;
1496
1497 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1498 if (_transport_sas_node_find_by_sas_address(ioc,
1499 phy->identify.sas_address) == NULL) {
1500 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1501 return -EINVAL;
1502 }
1503 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1504
1505 /* handle expander phys */
1506 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1507 return _transport_expander_phy_control(ioc, phy,
1508 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
1509 SMP_PHY_CONTROL_LINK_RESET);
1510
1511 /* handle hba phys */
1512 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t));
1513 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
1514 mpi_request.Operation = hard_reset ?
1515 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET;
1516 mpi_request.PhyNum = phy->number;
1517
1518 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) {
1519 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1520 ioc->name, __FILE__, __LINE__, __func__);
1521 return -ENXIO;
1522 }
1523
1524 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1525 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
1526 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
1527 phy->number, le16_to_cpu(mpi_reply.IOCStatus),
1528 le32_to_cpu(mpi_reply.IOCLogInfo));
1529
1530 return 0;
1531 }
1532
1533 /**
1534 * _transport_phy_enable - enable/disable phys
1535 * @phy: The sas phy object
1536 * @enable: enable phy when true
1537 *
1538 * Only support sas_host direct attached phys.
1539 * Returns 0 for success, non-zero for failure.
1540 */
1541 static int
1542 _transport_phy_enable(struct sas_phy *phy, int enable)
1543 {
1544 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
1545 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
1546 Mpi2ConfigReply_t mpi_reply;
1547 u16 ioc_status;
1548 u16 sz;
1549 int rc = 0;
1550 unsigned long flags;
1551
1552 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1553 if (_transport_sas_node_find_by_sas_address(ioc,
1554 phy->identify.sas_address) == NULL) {
1555 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1556 return -EINVAL;
1557 }
1558 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1559
1560 /* handle expander phys */
1561 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1562 return _transport_expander_phy_control(ioc, phy,
1563 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
1564 SMP_PHY_CONTROL_DISABLE);
1565
1566 /* handle hba phys */
1567
1568 /* sas_iounit page 1 */
1569 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
1570 sizeof(Mpi2SasIOUnit1PhyData_t));
1571 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
1572 if (!sas_iounit_pg1) {
1573 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1574 ioc->name, __FILE__, __LINE__, __func__);
1575 rc = -ENOMEM;
1576 goto out;
1577 }
1578 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
1579 sas_iounit_pg1, sz))) {
1580 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1581 ioc->name, __FILE__, __LINE__, __func__);
1582 rc = -ENXIO;
1583 goto out;
1584 }
1585 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1586 MPI2_IOCSTATUS_MASK;
1587 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1588 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1589 ioc->name, __FILE__, __LINE__, __func__);
1590 rc = -EIO;
1591 goto out;
1592 }
1593
1594 if (enable)
1595 sas_iounit_pg1->PhyData[phy->number].PhyFlags
1596 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
1597 else
1598 sas_iounit_pg1->PhyData[phy->number].PhyFlags
1599 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
1600
1601 mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz);
1602
1603 /* link reset */
1604 if (enable)
1605 _transport_phy_reset(phy, 0);
1606
1607 out:
1608 kfree(sas_iounit_pg1);
1609 return rc;
1610 }
1611
1612 /**
1613 * _transport_phy_speed - set phy min/max link rates
1614 * @phy: The sas phy object
1615 * @rates: rates defined in sas_phy_linkrates
1616 *
1617 * Only support sas_host direct attached phys.
1618 * Returns 0 for success, non-zero for failure.
1619 */
1620 static int
1621 _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
1622 {
1623 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
1624 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
1625 Mpi2SasPhyPage0_t phy_pg0;
1626 Mpi2ConfigReply_t mpi_reply;
1627 u16 ioc_status;
1628 u16 sz;
1629 int i;
1630 int rc = 0;
1631 unsigned long flags;
1632
1633 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1634 if (_transport_sas_node_find_by_sas_address(ioc,
1635 phy->identify.sas_address) == NULL) {
1636 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1637 return -EINVAL;
1638 }
1639 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1640
1641 if (!rates->minimum_linkrate)
1642 rates->minimum_linkrate = phy->minimum_linkrate;
1643 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
1644 rates->minimum_linkrate = phy->minimum_linkrate_hw;
1645
1646 if (!rates->maximum_linkrate)
1647 rates->maximum_linkrate = phy->maximum_linkrate;
1648 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
1649 rates->maximum_linkrate = phy->maximum_linkrate_hw;
1650
1651 /* handle expander phys */
1652 if (phy->identify.sas_address != ioc->sas_hba.sas_address) {
1653 phy->minimum_linkrate = rates->minimum_linkrate;
1654 phy->maximum_linkrate = rates->maximum_linkrate;
1655 return _transport_expander_phy_control(ioc, phy,
1656 SMP_PHY_CONTROL_LINK_RESET);
1657 }
1658
1659 /* handle hba phys */
1660
1661 /* sas_iounit page 1 */
1662 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
1663 sizeof(Mpi2SasIOUnit1PhyData_t));
1664 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
1665 if (!sas_iounit_pg1) {
1666 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1667 ioc->name, __FILE__, __LINE__, __func__);
1668 rc = -ENOMEM;
1669 goto out;
1670 }
1671 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
1672 sas_iounit_pg1, sz))) {
1673 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1674 ioc->name, __FILE__, __LINE__, __func__);
1675 rc = -ENXIO;
1676 goto out;
1677 }
1678 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1679 MPI2_IOCSTATUS_MASK;
1680 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1681 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1682 ioc->name, __FILE__, __LINE__, __func__);
1683 rc = -EIO;
1684 goto out;
1685 }
1686
1687 for (i = 0; i < ioc->sas_hba.num_phys; i++) {
1688 if (phy->number != i) {
1689 sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
1690 (ioc->sas_hba.phy[i].phy->minimum_linkrate +
1691 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4));
1692 } else {
1693 sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
1694 (rates->minimum_linkrate +
1695 (rates->maximum_linkrate << 4));
1696 }
1697 }
1698
1699 if (mpt2sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
1700 sz)) {
1701 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1702 ioc->name, __FILE__, __LINE__, __func__);
1703 rc = -ENXIO;
1704 goto out;
1705 }
1706
1707 /* link reset */
1708 _transport_phy_reset(phy, 0);
1709
1710 /* read phy page 0, then update the rates in the sas transport phy */
1711 if (!mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
1712 phy->number)) {
1713 phy->minimum_linkrate = _transport_convert_phy_link_rate(
1714 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
1715 phy->maximum_linkrate = _transport_convert_phy_link_rate(
1716 phy_pg0.ProgrammedLinkRate >> 4);
1717 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
1718 phy_pg0.NegotiatedLinkRate &
1719 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
1720 }
1721
1722 out:
1723 kfree(sas_iounit_pg1);
1724 return rc;
1725 }
1726
1727
1728 /**
1729 * _transport_smp_handler - transport portal for smp passthru
1730 * @shost: shost object
1731 * @rphy: sas transport rphy object
1732 * @req:
1733 *
1734 * This used primarily for smp_utils.
1735 * Example:
1736 * smp_rep_general /sys/class/bsg/expander-5:0
1737 */
1738 static int
1739 _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1740 struct request *req)
1741 {
1742 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1743 Mpi2SmpPassthroughRequest_t *mpi_request;
1744 Mpi2SmpPassthroughReply_t *mpi_reply;
1745 int rc;
1746 u16 smid;
1747 u32 ioc_state;
1748 unsigned long timeleft;
1749 void *psge;
1750 u32 sgl_flags;
1751 u8 issue_reset = 0;
1752 dma_addr_t dma_addr_in = 0;
1753 dma_addr_t dma_addr_out = 0;
1754 u16 wait_state_count;
1755 struct request *rsp = req->next_rq;
1756
1757 if (!rsp) {
1758 printk(MPT2SAS_ERR_FMT "%s: the smp response space is "
1759 "missing\n", ioc->name, __func__);
1760 return -EINVAL;
1761 }
1762
1763 /* do we need to support multiple segments? */
1764 if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
1765 printk(MPT2SAS_ERR_FMT "%s: multiple segments req %u %u, "
1766 "rsp %u %u\n", ioc->name, __func__, req->bio->bi_vcnt,
1767 blk_rq_bytes(req), rsp->bio->bi_vcnt, blk_rq_bytes(rsp));
1768 return -EINVAL;
1769 }
1770
1771 if (ioc->shost_recovery) {
1772 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1773 __func__, ioc->name);
1774 return -EFAULT;
1775 }
1776
1777 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
1778 if (rc)
1779 return rc;
1780
1781 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
1782 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", ioc->name,
1783 __func__);
1784 rc = -EAGAIN;
1785 goto out;
1786 }
1787 ioc->transport_cmds.status = MPT2_CMD_PENDING;
1788
1789 wait_state_count = 0;
1790 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1791 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1792 if (wait_state_count++ == 10) {
1793 printk(MPT2SAS_ERR_FMT
1794 "%s: failed due to ioc not operational\n",
1795 ioc->name, __func__);
1796 rc = -EFAULT;
1797 goto out;
1798 }
1799 ssleep(1);
1800 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1801 printk(MPT2SAS_INFO_FMT "%s: waiting for "
1802 "operational state(count=%d)\n", ioc->name,
1803 __func__, wait_state_count);
1804 }
1805 if (wait_state_count)
1806 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
1807 ioc->name, __func__);
1808
1809 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
1810 if (!smid) {
1811 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1812 ioc->name, __func__);
1813 rc = -EAGAIN;
1814 goto out;
1815 }
1816
1817 rc = 0;
1818 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1819 ioc->transport_cmds.smid = smid;
1820
1821 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1822 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1823 mpi_request->PhysicalPort = 0xFF;
1824 mpi_request->VF_ID = 0; /* TODO */
1825 mpi_request->VP_ID = 0;
1826 *((u64 *)&mpi_request->SASAddress) = (rphy) ?
1827 cpu_to_le64(rphy->identify.sas_address) :
1828 cpu_to_le64(ioc->sas_hba.sas_address);
1829 mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4);
1830 psge = &mpi_request->SGL;
1831
1832 /* WRITE sgel first */
1833 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1834 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1835 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1836 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
1837 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
1838 if (!dma_addr_out) {
1839 mpt2sas_base_free_smid(ioc, smid);
1840 goto unmap;
1841 }
1842
1843 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(req) - 4),
1844 dma_addr_out);
1845
1846 /* incr sgel */
1847 psge += ioc->sge_size;
1848
1849 /* READ sgel last */
1850 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1851 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1852 MPI2_SGE_FLAGS_END_OF_LIST);
1853 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1854 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
1855 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
1856 if (!dma_addr_in) {
1857 mpt2sas_base_free_smid(ioc, smid);
1858 goto unmap;
1859 }
1860
1861 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(rsp) + 4),
1862 dma_addr_in);
1863
1864 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "%s - "
1865 "sending smp request\n", ioc->name, __func__));
1866
1867 mpt2sas_base_put_smid_default(ioc, smid);
1868 init_completion(&ioc->transport_cmds.done);
1869 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
1870 10*HZ);
1871
1872 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
1873 printk(MPT2SAS_ERR_FMT "%s : timeout\n",
1874 __func__, ioc->name);
1875 _debug_dump_mf(mpi_request,
1876 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1877 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
1878 issue_reset = 1;
1879 goto issue_host_reset;
1880 }
1881
1882 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "%s - "
1883 "complete\n", ioc->name, __func__));
1884
1885 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
1886
1887 mpi_reply = ioc->transport_cmds.reply;
1888
1889 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1890 "%s - reply data transfer size(%d)\n",
1891 ioc->name, __func__,
1892 le16_to_cpu(mpi_reply->ResponseDataLength)));
1893
1894 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply));
1895 req->sense_len = sizeof(*mpi_reply);
1896 req->resid_len = 0;
1897 rsp->resid_len -=
1898 le16_to_cpu(mpi_reply->ResponseDataLength);
1899 } else {
1900 dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT
1901 "%s - no reply\n", ioc->name, __func__));
1902 rc = -ENXIO;
1903 }
1904
1905 issue_host_reset:
1906 if (issue_reset) {
1907 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1908 FORCE_BIG_HAMMER);
1909 rc = -ETIMEDOUT;
1910 }
1911
1912 unmap:
1913 if (dma_addr_out)
1914 pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req),
1915 PCI_DMA_BIDIRECTIONAL);
1916 if (dma_addr_in)
1917 pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp),
1918 PCI_DMA_BIDIRECTIONAL);
1919
1920 out:
1921 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
1922 mutex_unlock(&ioc->transport_cmds.mutex);
1923 return rc;
1924 }
1925
1926 struct sas_function_template mpt2sas_transport_functions = {
1927 .get_linkerrors = _transport_get_linkerrors,
1928 .get_enclosure_identifier = _transport_get_enclosure_identifier,
1929 .get_bay_identifier = _transport_get_bay_identifier,
1930 .phy_reset = _transport_phy_reset,
1931 .phy_enable = _transport_phy_enable,
1932 .set_phy_speed = _transport_phy_speed,
1933 .smp_handler = _transport_smp_handler,
1934 };
1935
1936 struct scsi_transport_template *mpt2sas_transport_template;
Tomato firmware and modifications.