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635374e7 EM |
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 ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, | |
144 | MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { | |
145 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
146 | ioc->name, __FILE__, __LINE__, __func__); | |
147 | return -1; | |
148 | } | |
149 | ||
150 | ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & | |
151 | MPI2_IOCSTATUS_MASK; | |
152 | if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { | |
153 | printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)" | |
154 | "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status, | |
155 | __FILE__, __LINE__, __func__); | |
156 | return -1; | |
157 | } | |
158 | ||
159 | memset(identify, 0, sizeof(identify)); | |
160 | device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); | |
161 | ||
162 | /* sas_address */ | |
163 | identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress); | |
164 | ||
165 | /* device_type */ | |
166 | switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) { | |
167 | case MPI2_SAS_DEVICE_INFO_NO_DEVICE: | |
168 | identify->device_type = SAS_PHY_UNUSED; | |
169 | break; | |
170 | case MPI2_SAS_DEVICE_INFO_END_DEVICE: | |
171 | identify->device_type = SAS_END_DEVICE; | |
172 | break; | |
173 | case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER: | |
174 | identify->device_type = SAS_EDGE_EXPANDER_DEVICE; | |
175 | break; | |
176 | case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER: | |
177 | identify->device_type = SAS_FANOUT_EXPANDER_DEVICE; | |
178 | break; | |
179 | } | |
180 | ||
181 | /* initiator_port_protocols */ | |
182 | if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR) | |
183 | identify->initiator_port_protocols |= SAS_PROTOCOL_SSP; | |
184 | if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR) | |
185 | identify->initiator_port_protocols |= SAS_PROTOCOL_STP; | |
186 | if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR) | |
187 | identify->initiator_port_protocols |= SAS_PROTOCOL_SMP; | |
188 | if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST) | |
189 | identify->initiator_port_protocols |= SAS_PROTOCOL_SATA; | |
190 | ||
191 | /* target_port_protocols */ | |
192 | if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) | |
193 | identify->target_port_protocols |= SAS_PROTOCOL_SSP; | |
194 | if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) | |
195 | identify->target_port_protocols |= SAS_PROTOCOL_STP; | |
196 | if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) | |
197 | identify->target_port_protocols |= SAS_PROTOCOL_SMP; | |
198 | if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) | |
199 | identify->target_port_protocols |= SAS_PROTOCOL_SATA; | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
204 | /** | |
205 | * mpt2sas_transport_done - internal transport layer callback handler. | |
206 | * @ioc: per adapter object | |
207 | * @smid: system request message index | |
208 | * @VF_ID: virtual function id | |
209 | * @reply: reply message frame(lower 32bit addr) | |
210 | * | |
211 | * Callback handler when sending internal generated transport cmds. | |
212 | * The callback index passed is `ioc->transport_cb_idx` | |
213 | * | |
214 | * Return nothing. | |
215 | */ | |
216 | void | |
217 | mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, | |
218 | u32 reply) | |
219 | { | |
220 | MPI2DefaultReply_t *mpi_reply; | |
221 | ||
222 | mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); | |
223 | if (ioc->transport_cmds.status == MPT2_CMD_NOT_USED) | |
224 | return; | |
225 | if (ioc->transport_cmds.smid != smid) | |
226 | return; | |
227 | ioc->transport_cmds.status |= MPT2_CMD_COMPLETE; | |
228 | if (mpi_reply) { | |
229 | memcpy(ioc->transport_cmds.reply, mpi_reply, | |
230 | mpi_reply->MsgLength*4); | |
231 | ioc->transport_cmds.status |= MPT2_CMD_REPLY_VALID; | |
232 | } | |
233 | ioc->transport_cmds.status &= ~MPT2_CMD_PENDING; | |
234 | complete(&ioc->transport_cmds.done); | |
235 | } | |
236 | ||
237 | /* report manufacture request structure */ | |
238 | struct rep_manu_request{ | |
239 | u8 smp_frame_type; | |
240 | u8 function; | |
241 | u8 reserved; | |
242 | u8 request_length; | |
243 | }; | |
244 | ||
245 | /* report manufacture reply structure */ | |
246 | struct rep_manu_reply{ | |
247 | u8 smp_frame_type; /* 0x41 */ | |
248 | u8 function; /* 0x01 */ | |
249 | u8 function_result; | |
250 | u8 response_length; | |
251 | u16 expander_change_count; | |
252 | u8 reserved0[2]; | |
253 | u8 sas_format:1; | |
254 | u8 reserved1:7; | |
255 | u8 reserved2[3]; | |
256 | u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN]; | |
257 | u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN]; | |
258 | u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN]; | |
259 | u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN]; | |
260 | u16 component_id; | |
261 | u8 component_revision_id; | |
262 | u8 reserved3; | |
263 | u8 vendor_specific[8]; | |
264 | }; | |
265 | ||
266 | /** | |
d5d135b3 | 267 | * _transport_expander_report_manufacture - obtain SMP report_manufacture |
635374e7 EM |
268 | * @ioc: per adapter object |
269 | * @sas_address: expander sas address | |
270 | * @edev: the sas_expander_device object | |
271 | * | |
272 | * Fills in the sas_expander_device object when SMP port is created. | |
273 | * | |
274 | * Returns 0 for success, non-zero for failure. | |
275 | */ | |
276 | static int | |
d5d135b3 | 277 | _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc, |
635374e7 EM |
278 | u64 sas_address, struct sas_expander_device *edev) |
279 | { | |
280 | Mpi2SmpPassthroughRequest_t *mpi_request; | |
281 | Mpi2SmpPassthroughReply_t *mpi_reply; | |
282 | struct rep_manu_reply *manufacture_reply; | |
283 | struct rep_manu_request *manufacture_request; | |
284 | int rc; | |
285 | u16 smid; | |
286 | u32 ioc_state; | |
287 | unsigned long timeleft; | |
288 | void *psge; | |
289 | u32 sgl_flags; | |
290 | u8 issue_reset = 0; | |
291 | unsigned long flags; | |
292 | void *data_out = NULL; | |
293 | dma_addr_t data_out_dma; | |
294 | u32 sz; | |
295 | u64 *sas_address_le; | |
296 | u16 wait_state_count; | |
297 | ||
298 | spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); | |
299 | if (ioc->ioc_reset_in_progress) { | |
300 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); | |
301 | printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", | |
302 | __func__, ioc->name); | |
303 | return -EFAULT; | |
304 | } | |
305 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); | |
306 | ||
307 | mutex_lock(&ioc->transport_cmds.mutex); | |
308 | ||
309 | if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { | |
310 | printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", | |
311 | ioc->name, __func__); | |
312 | rc = -EAGAIN; | |
313 | goto out; | |
314 | } | |
315 | ioc->transport_cmds.status = MPT2_CMD_PENDING; | |
316 | ||
317 | wait_state_count = 0; | |
318 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
319 | while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { | |
320 | if (wait_state_count++ == 10) { | |
321 | printk(MPT2SAS_ERR_FMT | |
322 | "%s: failed due to ioc not operational\n", | |
323 | ioc->name, __func__); | |
324 | rc = -EFAULT; | |
325 | goto out; | |
326 | } | |
327 | ssleep(1); | |
328 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
329 | printk(MPT2SAS_INFO_FMT "%s: waiting for " | |
330 | "operational state(count=%d)\n", ioc->name, | |
331 | __func__, wait_state_count); | |
332 | } | |
333 | if (wait_state_count) | |
334 | printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", | |
335 | ioc->name, __func__); | |
336 | ||
337 | smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); | |
338 | if (!smid) { | |
339 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
340 | ioc->name, __func__); | |
341 | rc = -EAGAIN; | |
342 | goto out; | |
343 | } | |
344 | ||
345 | rc = 0; | |
346 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
347 | ioc->transport_cmds.smid = smid; | |
348 | ||
349 | sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply); | |
350 | data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma); | |
351 | ||
352 | if (!data_out) { | |
353 | printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, | |
354 | __LINE__, __func__); | |
355 | rc = -ENOMEM; | |
356 | mpt2sas_base_free_smid(ioc, smid); | |
357 | goto out; | |
358 | } | |
359 | ||
360 | manufacture_request = data_out; | |
361 | manufacture_request->smp_frame_type = 0x40; | |
362 | manufacture_request->function = 1; | |
363 | manufacture_request->reserved = 0; | |
364 | manufacture_request->request_length = 0; | |
365 | ||
366 | memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); | |
367 | mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; | |
368 | mpi_request->PhysicalPort = 0xFF; | |
369 | sas_address_le = (u64 *)&mpi_request->SASAddress; | |
370 | *sas_address_le = cpu_to_le64(sas_address); | |
371 | mpi_request->RequestDataLength = sizeof(struct rep_manu_request); | |
372 | psge = &mpi_request->SGL; | |
373 | ||
374 | /* WRITE sgel first */ | |
375 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
376 | MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); | |
377 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
378 | ioc->base_add_sg_single(psge, sgl_flags | | |
379 | sizeof(struct rep_manu_request), data_out_dma); | |
380 | ||
381 | /* incr sgel */ | |
382 | psge += ioc->sge_size; | |
383 | ||
384 | /* READ sgel last */ | |
385 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
386 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | | |
387 | MPI2_SGE_FLAGS_END_OF_LIST); | |
388 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
389 | ioc->base_add_sg_single(psge, sgl_flags | | |
390 | sizeof(struct rep_manu_reply), data_out_dma + | |
391 | sizeof(struct rep_manu_request)); | |
392 | ||
393 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - " | |
394 | "send to sas_addr(0x%016llx)\n", ioc->name, | |
395 | (unsigned long long)sas_address)); | |
396 | mpt2sas_base_put_smid_default(ioc, smid, 0 /* VF_ID */); | |
397 | timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, | |
398 | 10*HZ); | |
399 | ||
400 | if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { | |
401 | printk(MPT2SAS_ERR_FMT "%s: timeout\n", | |
402 | ioc->name, __func__); | |
403 | _debug_dump_mf(mpi_request, | |
404 | sizeof(Mpi2SmpPassthroughRequest_t)/4); | |
405 | if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) | |
406 | issue_reset = 1; | |
407 | goto issue_host_reset; | |
408 | } | |
409 | ||
410 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - " | |
411 | "complete\n", ioc->name)); | |
412 | ||
413 | if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { | |
414 | u8 *tmp; | |
415 | ||
416 | mpi_reply = ioc->transport_cmds.reply; | |
417 | ||
418 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT | |
419 | "report_manufacture - reply data transfer size(%d)\n", | |
420 | ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength))); | |
421 | ||
422 | if (le16_to_cpu(mpi_reply->ResponseDataLength) != | |
423 | sizeof(struct rep_manu_reply)) | |
424 | goto out; | |
425 | ||
426 | manufacture_reply = data_out + sizeof(struct rep_manu_request); | |
427 | strncpy(edev->vendor_id, manufacture_reply->vendor_id, | |
428 | SAS_EXPANDER_VENDOR_ID_LEN); | |
429 | strncpy(edev->product_id, manufacture_reply->product_id, | |
430 | SAS_EXPANDER_PRODUCT_ID_LEN); | |
431 | strncpy(edev->product_rev, manufacture_reply->product_rev, | |
432 | SAS_EXPANDER_PRODUCT_REV_LEN); | |
433 | edev->level = manufacture_reply->sas_format; | |
434 | if (manufacture_reply->sas_format) { | |
435 | strncpy(edev->component_vendor_id, | |
436 | manufacture_reply->component_vendor_id, | |
437 | SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN); | |
438 | tmp = (u8 *)&manufacture_reply->component_id; | |
439 | edev->component_id = tmp[0] << 8 | tmp[1]; | |
440 | edev->component_revision_id = | |
441 | manufacture_reply->component_revision_id; | |
442 | } | |
443 | } else | |
444 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT | |
445 | "report_manufacture - no reply\n", ioc->name)); | |
446 | ||
447 | issue_host_reset: | |
448 | if (issue_reset) | |
449 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
450 | FORCE_BIG_HAMMER); | |
451 | out: | |
452 | ioc->transport_cmds.status = MPT2_CMD_NOT_USED; | |
453 | if (data_out) | |
454 | pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma); | |
455 | ||
456 | mutex_unlock(&ioc->transport_cmds.mutex); | |
457 | return rc; | |
458 | } | |
459 | ||
460 | /** | |
461 | * mpt2sas_transport_port_add - insert port to the list | |
462 | * @ioc: per adapter object | |
463 | * @handle: handle of attached device | |
464 | * @parent_handle: parent handle(either hba or expander) | |
465 | * Context: This function will acquire ioc->sas_node_lock. | |
466 | * | |
467 | * Adding new port object to the sas_node->sas_port_list. | |
468 | * | |
469 | * Returns mpt2sas_port. | |
470 | */ | |
471 | struct _sas_port * | |
472 | mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle, | |
473 | u16 parent_handle) | |
474 | { | |
475 | struct _sas_phy *mpt2sas_phy, *next; | |
476 | struct _sas_port *mpt2sas_port; | |
477 | unsigned long flags; | |
478 | struct _sas_node *sas_node; | |
479 | struct sas_rphy *rphy; | |
480 | int i; | |
481 | struct sas_port *port; | |
482 | ||
483 | if (!parent_handle) | |
484 | return NULL; | |
485 | ||
486 | mpt2sas_port = kzalloc(sizeof(struct _sas_port), | |
487 | GFP_KERNEL); | |
488 | if (!mpt2sas_port) { | |
489 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
490 | ioc->name, __FILE__, __LINE__, __func__); | |
491 | return NULL; | |
492 | } | |
493 | ||
494 | INIT_LIST_HEAD(&mpt2sas_port->port_list); | |
495 | INIT_LIST_HEAD(&mpt2sas_port->phy_list); | |
496 | spin_lock_irqsave(&ioc->sas_node_lock, flags); | |
497 | sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle); | |
498 | spin_unlock_irqrestore(&ioc->sas_node_lock, flags); | |
499 | ||
500 | if (!sas_node) { | |
501 | printk(MPT2SAS_ERR_FMT "%s: Could not find parent(0x%04x)!\n", | |
502 | ioc->name, __func__, parent_handle); | |
503 | goto out_fail; | |
504 | } | |
505 | ||
506 | mpt2sas_port->handle = parent_handle; | |
507 | mpt2sas_port->sas_address = sas_node->sas_address; | |
508 | if ((_transport_set_identify(ioc, handle, | |
509 | &mpt2sas_port->remote_identify))) { | |
510 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
511 | ioc->name, __FILE__, __LINE__, __func__); | |
512 | goto out_fail; | |
513 | } | |
514 | ||
515 | if (mpt2sas_port->remote_identify.device_type == SAS_PHY_UNUSED) { | |
516 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
517 | ioc->name, __FILE__, __LINE__, __func__); | |
518 | goto out_fail; | |
519 | } | |
520 | ||
521 | for (i = 0; i < sas_node->num_phys; i++) { | |
522 | if (sas_node->phy[i].remote_identify.sas_address != | |
523 | mpt2sas_port->remote_identify.sas_address) | |
524 | continue; | |
525 | list_add_tail(&sas_node->phy[i].port_siblings, | |
526 | &mpt2sas_port->phy_list); | |
527 | mpt2sas_port->num_phys++; | |
528 | } | |
529 | ||
530 | if (!mpt2sas_port->num_phys) { | |
531 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
532 | ioc->name, __FILE__, __LINE__, __func__); | |
533 | goto out_fail; | |
534 | } | |
535 | ||
536 | port = sas_port_alloc_num(sas_node->parent_dev); | |
537 | if ((sas_port_add(port))) { | |
538 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
539 | ioc->name, __FILE__, __LINE__, __func__); | |
540 | goto out_fail; | |
541 | } | |
542 | ||
543 | list_for_each_entry(mpt2sas_phy, &mpt2sas_port->phy_list, | |
544 | port_siblings) { | |
545 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
546 | dev_printk(KERN_INFO, &port->dev, "add: handle(0x%04x)" | |
547 | ", sas_addr(0x%016llx), phy(%d)\n", handle, | |
548 | (unsigned long long) | |
549 | mpt2sas_port->remote_identify.sas_address, | |
550 | mpt2sas_phy->phy_id); | |
551 | sas_port_add_phy(port, mpt2sas_phy->phy); | |
552 | } | |
553 | ||
554 | mpt2sas_port->port = port; | |
555 | if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) | |
556 | rphy = sas_end_device_alloc(port); | |
557 | else | |
558 | rphy = sas_expander_alloc(port, | |
559 | mpt2sas_port->remote_identify.device_type); | |
560 | ||
561 | rphy->identify = mpt2sas_port->remote_identify; | |
562 | if ((sas_rphy_add(rphy))) { | |
563 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
564 | ioc->name, __FILE__, __LINE__, __func__); | |
565 | } | |
566 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
567 | dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), " | |
568 | "sas_addr(0x%016llx)\n", handle, | |
569 | (unsigned long long) | |
570 | mpt2sas_port->remote_identify.sas_address); | |
571 | mpt2sas_port->rphy = rphy; | |
572 | spin_lock_irqsave(&ioc->sas_node_lock, flags); | |
573 | list_add_tail(&mpt2sas_port->port_list, &sas_node->sas_port_list); | |
574 | spin_unlock_irqrestore(&ioc->sas_node_lock, flags); | |
575 | ||
576 | /* fill in report manufacture */ | |
577 | if (mpt2sas_port->remote_identify.device_type == | |
578 | MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER || | |
579 | mpt2sas_port->remote_identify.device_type == | |
580 | MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) | |
d5d135b3 | 581 | _transport_expander_report_manufacture(ioc, |
635374e7 EM |
582 | mpt2sas_port->remote_identify.sas_address, |
583 | rphy_to_expander_device(rphy)); | |
584 | ||
585 | return mpt2sas_port; | |
586 | ||
587 | out_fail: | |
588 | list_for_each_entry_safe(mpt2sas_phy, next, &mpt2sas_port->phy_list, | |
589 | port_siblings) | |
590 | list_del(&mpt2sas_phy->port_siblings); | |
591 | kfree(mpt2sas_port); | |
592 | return NULL; | |
593 | } | |
594 | ||
595 | /** | |
596 | * mpt2sas_transport_port_remove - remove port from the list | |
597 | * @ioc: per adapter object | |
598 | * @sas_address: sas address of attached device | |
599 | * @parent_handle: handle to the upstream parent(either hba or expander) | |
600 | * Context: This function will acquire ioc->sas_node_lock. | |
601 | * | |
602 | * Removing object and freeing associated memory from the | |
603 | * ioc->sas_port_list. | |
604 | * | |
605 | * Return nothing. | |
606 | */ | |
607 | void | |
608 | mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address, | |
609 | u16 parent_handle) | |
610 | { | |
611 | int i; | |
612 | unsigned long flags; | |
613 | struct _sas_port *mpt2sas_port, *next; | |
614 | struct _sas_node *sas_node; | |
615 | u8 found = 0; | |
616 | struct _sas_phy *mpt2sas_phy, *next_phy; | |
617 | ||
618 | spin_lock_irqsave(&ioc->sas_node_lock, flags); | |
619 | sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle); | |
620 | spin_unlock_irqrestore(&ioc->sas_node_lock, flags); | |
621 | if (!sas_node) | |
622 | return; | |
623 | list_for_each_entry_safe(mpt2sas_port, next, &sas_node->sas_port_list, | |
624 | port_list) { | |
625 | if (mpt2sas_port->remote_identify.sas_address != sas_address) | |
626 | continue; | |
627 | found = 1; | |
628 | list_del(&mpt2sas_port->port_list); | |
629 | goto out; | |
630 | } | |
631 | out: | |
632 | if (!found) | |
633 | return; | |
634 | ||
635 | for (i = 0; i < sas_node->num_phys; i++) { | |
636 | if (sas_node->phy[i].remote_identify.sas_address == sas_address) | |
637 | memset(&sas_node->phy[i].remote_identify, 0 , | |
638 | sizeof(struct sas_identify)); | |
639 | } | |
640 | ||
641 | list_for_each_entry_safe(mpt2sas_phy, next_phy, | |
642 | &mpt2sas_port->phy_list, port_siblings) { | |
643 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
644 | dev_printk(KERN_INFO, &mpt2sas_port->port->dev, | |
645 | "remove: parent_handle(0x%04x), " | |
646 | "sas_addr(0x%016llx), phy(%d)\n", parent_handle, | |
647 | (unsigned long long) | |
648 | mpt2sas_port->remote_identify.sas_address, | |
649 | mpt2sas_phy->phy_id); | |
650 | sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy); | |
651 | list_del(&mpt2sas_phy->port_siblings); | |
652 | } | |
653 | sas_port_delete(mpt2sas_port->port); | |
654 | kfree(mpt2sas_port); | |
655 | } | |
656 | ||
657 | /** | |
658 | * mpt2sas_transport_add_host_phy - report sas_host phy to transport | |
659 | * @ioc: per adapter object | |
660 | * @mpt2sas_phy: mpt2sas per phy object | |
661 | * @phy_pg0: sas phy page 0 | |
662 | * @parent_dev: parent device class object | |
663 | * | |
664 | * Returns 0 for success, non-zero for failure. | |
665 | */ | |
666 | int | |
667 | mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy | |
668 | *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev) | |
669 | { | |
670 | struct sas_phy *phy; | |
671 | int phy_index = mpt2sas_phy->phy_id; | |
672 | ||
673 | ||
674 | INIT_LIST_HEAD(&mpt2sas_phy->port_siblings); | |
675 | phy = sas_phy_alloc(parent_dev, phy_index); | |
676 | if (!phy) { | |
677 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
678 | ioc->name, __FILE__, __LINE__, __func__); | |
679 | return -1; | |
680 | } | |
681 | if ((_transport_set_identify(ioc, mpt2sas_phy->handle, | |
682 | &mpt2sas_phy->identify))) { | |
683 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
684 | ioc->name, __FILE__, __LINE__, __func__); | |
685 | return -1; | |
686 | } | |
687 | phy->identify = mpt2sas_phy->identify; | |
688 | mpt2sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle); | |
689 | if (mpt2sas_phy->attached_handle) | |
690 | _transport_set_identify(ioc, mpt2sas_phy->attached_handle, | |
691 | &mpt2sas_phy->remote_identify); | |
692 | phy->identify.phy_identifier = mpt2sas_phy->phy_id; | |
693 | phy->negotiated_linkrate = _transport_convert_phy_link_rate( | |
694 | phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); | |
695 | phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( | |
696 | phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); | |
697 | phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( | |
698 | phy_pg0.HwLinkRate >> 4); | |
699 | phy->minimum_linkrate = _transport_convert_phy_link_rate( | |
700 | phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); | |
701 | phy->maximum_linkrate = _transport_convert_phy_link_rate( | |
702 | phy_pg0.ProgrammedLinkRate >> 4); | |
703 | ||
704 | if ((sas_phy_add(phy))) { | |
705 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
706 | ioc->name, __FILE__, __LINE__, __func__); | |
707 | sas_phy_free(phy); | |
708 | return -1; | |
709 | } | |
710 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
711 | dev_printk(KERN_INFO, &phy->dev, | |
712 | "add: handle(0x%04x), sas_addr(0x%016llx)\n" | |
713 | "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", | |
714 | mpt2sas_phy->handle, (unsigned long long) | |
715 | mpt2sas_phy->identify.sas_address, | |
716 | mpt2sas_phy->attached_handle, | |
717 | (unsigned long long) | |
718 | mpt2sas_phy->remote_identify.sas_address); | |
719 | mpt2sas_phy->phy = phy; | |
720 | return 0; | |
721 | } | |
722 | ||
723 | ||
724 | /** | |
725 | * mpt2sas_transport_add_expander_phy - report expander phy to transport | |
726 | * @ioc: per adapter object | |
727 | * @mpt2sas_phy: mpt2sas per phy object | |
728 | * @expander_pg1: expander page 1 | |
729 | * @parent_dev: parent device class object | |
730 | * | |
731 | * Returns 0 for success, non-zero for failure. | |
732 | */ | |
733 | int | |
734 | mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy | |
735 | *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev) | |
736 | { | |
737 | struct sas_phy *phy; | |
738 | int phy_index = mpt2sas_phy->phy_id; | |
739 | ||
740 | INIT_LIST_HEAD(&mpt2sas_phy->port_siblings); | |
741 | phy = sas_phy_alloc(parent_dev, phy_index); | |
742 | if (!phy) { | |
743 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
744 | ioc->name, __FILE__, __LINE__, __func__); | |
745 | return -1; | |
746 | } | |
747 | if ((_transport_set_identify(ioc, mpt2sas_phy->handle, | |
748 | &mpt2sas_phy->identify))) { | |
749 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
750 | ioc->name, __FILE__, __LINE__, __func__); | |
751 | return -1; | |
752 | } | |
753 | phy->identify = mpt2sas_phy->identify; | |
754 | mpt2sas_phy->attached_handle = | |
755 | le16_to_cpu(expander_pg1.AttachedDevHandle); | |
756 | if (mpt2sas_phy->attached_handle) | |
757 | _transport_set_identify(ioc, mpt2sas_phy->attached_handle, | |
758 | &mpt2sas_phy->remote_identify); | |
759 | phy->identify.phy_identifier = mpt2sas_phy->phy_id; | |
760 | phy->negotiated_linkrate = _transport_convert_phy_link_rate( | |
761 | expander_pg1.NegotiatedLinkRate & | |
762 | MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL); | |
763 | phy->minimum_linkrate_hw = _transport_convert_phy_link_rate( | |
764 | expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK); | |
765 | phy->maximum_linkrate_hw = _transport_convert_phy_link_rate( | |
766 | expander_pg1.HwLinkRate >> 4); | |
767 | phy->minimum_linkrate = _transport_convert_phy_link_rate( | |
768 | expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK); | |
769 | phy->maximum_linkrate = _transport_convert_phy_link_rate( | |
770 | expander_pg1.ProgrammedLinkRate >> 4); | |
771 | ||
772 | if ((sas_phy_add(phy))) { | |
773 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
774 | ioc->name, __FILE__, __LINE__, __func__); | |
775 | sas_phy_free(phy); | |
776 | return -1; | |
777 | } | |
778 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
779 | dev_printk(KERN_INFO, &phy->dev, | |
780 | "add: handle(0x%04x), sas_addr(0x%016llx)\n" | |
781 | "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", | |
782 | mpt2sas_phy->handle, (unsigned long long) | |
783 | mpt2sas_phy->identify.sas_address, | |
784 | mpt2sas_phy->attached_handle, | |
785 | (unsigned long long) | |
786 | mpt2sas_phy->remote_identify.sas_address); | |
787 | mpt2sas_phy->phy = phy; | |
788 | return 0; | |
789 | } | |
790 | ||
791 | /** | |
792 | * mpt2sas_transport_update_phy_link_change - refreshing phy link changes and attached devices | |
793 | * @ioc: per adapter object | |
794 | * @handle: handle to sas_host or expander | |
795 | * @attached_handle: attached device handle | |
796 | * @phy_numberv: phy number | |
797 | * @link_rate: new link rate | |
798 | * | |
799 | * Returns nothing. | |
800 | */ | |
801 | void | |
802 | mpt2sas_transport_update_phy_link_change(struct MPT2SAS_ADAPTER *ioc, | |
803 | u16 handle, u16 attached_handle, u8 phy_number, u8 link_rate) | |
804 | { | |
805 | unsigned long flags; | |
806 | struct _sas_node *sas_node; | |
807 | struct _sas_phy *mpt2sas_phy; | |
808 | ||
809 | spin_lock_irqsave(&ioc->sas_node_lock, flags); | |
810 | sas_node = _transport_sas_node_find_by_handle(ioc, handle); | |
811 | spin_unlock_irqrestore(&ioc->sas_node_lock, flags); | |
812 | if (!sas_node) | |
813 | return; | |
814 | ||
815 | mpt2sas_phy = &sas_node->phy[phy_number]; | |
816 | mpt2sas_phy->attached_handle = attached_handle; | |
817 | if (attached_handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) | |
818 | _transport_set_identify(ioc, mpt2sas_phy->attached_handle, | |
819 | &mpt2sas_phy->remote_identify); | |
820 | else | |
821 | memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct | |
822 | sas_identify)); | |
823 | ||
824 | if (mpt2sas_phy->phy) | |
825 | mpt2sas_phy->phy->negotiated_linkrate = | |
826 | _transport_convert_phy_link_rate(link_rate); | |
827 | ||
828 | if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) | |
829 | dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev, | |
830 | "refresh: handle(0x%04x), sas_addr(0x%016llx),\n" | |
831 | "\tlink_rate(0x%02x), phy(%d)\n" | |
832 | "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n", | |
833 | handle, (unsigned long long) | |
834 | mpt2sas_phy->identify.sas_address, link_rate, | |
835 | phy_number, attached_handle, | |
836 | (unsigned long long) | |
837 | mpt2sas_phy->remote_identify.sas_address); | |
838 | } | |
839 | ||
840 | static inline void * | |
841 | phy_to_ioc(struct sas_phy *phy) | |
842 | { | |
843 | struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); | |
844 | return shost_priv(shost); | |
845 | } | |
846 | ||
847 | static inline void * | |
848 | rphy_to_ioc(struct sas_rphy *rphy) | |
849 | { | |
850 | struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); | |
851 | return shost_priv(shost); | |
852 | } | |
853 | ||
854 | /** | |
d5d135b3 | 855 | * _transport_get_linkerrors - |
635374e7 EM |
856 | * @phy: The sas phy object |
857 | * | |
858 | * Only support sas_host direct attached phys. | |
859 | * Returns 0 for success, non-zero for failure. | |
860 | * | |
861 | */ | |
862 | static int | |
d5d135b3 | 863 | _transport_get_linkerrors(struct sas_phy *phy) |
635374e7 EM |
864 | { |
865 | struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy); | |
866 | struct _sas_phy *mpt2sas_phy; | |
867 | Mpi2ConfigReply_t mpi_reply; | |
868 | Mpi2SasPhyPage1_t phy_pg1; | |
869 | int i; | |
870 | ||
871 | for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys && | |
872 | !mpt2sas_phy; i++) { | |
873 | if (ioc->sas_hba.phy[i].phy != phy) | |
874 | continue; | |
875 | mpt2sas_phy = &ioc->sas_hba.phy[i]; | |
876 | } | |
877 | ||
878 | if (!mpt2sas_phy) /* this phy not on sas_host */ | |
879 | return -EINVAL; | |
880 | ||
881 | if ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1, | |
882 | mpt2sas_phy->phy_id))) { | |
883 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
884 | ioc->name, __FILE__, __LINE__, __func__); | |
885 | return -ENXIO; | |
886 | } | |
887 | ||
888 | if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) | |
889 | printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status" | |
890 | "(0x%04x), loginfo(0x%08x)\n", ioc->name, | |
891 | mpt2sas_phy->phy_id, | |
892 | le16_to_cpu(mpi_reply.IOCStatus), | |
893 | le32_to_cpu(mpi_reply.IOCLogInfo)); | |
894 | ||
895 | phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount); | |
896 | phy->running_disparity_error_count = | |
897 | le32_to_cpu(phy_pg1.RunningDisparityErrorCount); | |
898 | phy->loss_of_dword_sync_count = | |
899 | le32_to_cpu(phy_pg1.LossDwordSynchCount); | |
900 | phy->phy_reset_problem_count = | |
901 | le32_to_cpu(phy_pg1.PhyResetProblemCount); | |
902 | return 0; | |
903 | } | |
904 | ||
905 | /** | |
d5d135b3 | 906 | * _transport_get_enclosure_identifier - |
635374e7 EM |
907 | * @phy: The sas phy object |
908 | * | |
909 | * Obtain the enclosure logical id for an expander. | |
910 | * Returns 0 for success, non-zero for failure. | |
911 | */ | |
912 | static int | |
d5d135b3 | 913 | _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) |
635374e7 EM |
914 | { |
915 | struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy); | |
916 | struct _sas_node *sas_expander; | |
917 | unsigned long flags; | |
918 | ||
919 | spin_lock_irqsave(&ioc->sas_node_lock, flags); | |
920 | sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc, | |
921 | rphy->identify.sas_address); | |
922 | spin_unlock_irqrestore(&ioc->sas_node_lock, flags); | |
923 | ||
924 | if (!sas_expander) | |
925 | return -ENXIO; | |
926 | ||
927 | *identifier = sas_expander->enclosure_logical_id; | |
928 | return 0; | |
929 | } | |
930 | ||
931 | /** | |
d5d135b3 | 932 | * _transport_get_bay_identifier - |
635374e7 EM |
933 | * @phy: The sas phy object |
934 | * | |
935 | * Returns the slot id for a device that resides inside an enclosure. | |
936 | */ | |
937 | static int | |
d5d135b3 | 938 | _transport_get_bay_identifier(struct sas_rphy *rphy) |
635374e7 EM |
939 | { |
940 | struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy); | |
941 | struct _sas_device *sas_device; | |
942 | unsigned long flags; | |
943 | ||
944 | spin_lock_irqsave(&ioc->sas_device_lock, flags); | |
945 | sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, | |
946 | rphy->identify.sas_address); | |
947 | spin_unlock_irqrestore(&ioc->sas_device_lock, flags); | |
948 | ||
949 | if (!sas_device) | |
950 | return -ENXIO; | |
951 | ||
952 | return sas_device->slot; | |
953 | } | |
954 | ||
955 | /** | |
d5d135b3 | 956 | * _transport_phy_reset - |
635374e7 EM |
957 | * @phy: The sas phy object |
958 | * @hard_reset: | |
959 | * | |
960 | * Only support sas_host direct attached phys. | |
961 | * Returns 0 for success, non-zero for failure. | |
962 | */ | |
963 | static int | |
d5d135b3 | 964 | _transport_phy_reset(struct sas_phy *phy, int hard_reset) |
635374e7 EM |
965 | { |
966 | struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy); | |
967 | struct _sas_phy *mpt2sas_phy; | |
968 | Mpi2SasIoUnitControlReply_t mpi_reply; | |
969 | Mpi2SasIoUnitControlRequest_t mpi_request; | |
970 | int i; | |
971 | ||
972 | for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys && | |
973 | !mpt2sas_phy; i++) { | |
974 | if (ioc->sas_hba.phy[i].phy != phy) | |
975 | continue; | |
976 | mpt2sas_phy = &ioc->sas_hba.phy[i]; | |
977 | } | |
978 | ||
979 | if (!mpt2sas_phy) /* this phy not on sas_host */ | |
980 | return -EINVAL; | |
981 | ||
982 | memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t)); | |
983 | mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL; | |
984 | mpi_request.Operation = hard_reset ? | |
985 | MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET; | |
986 | mpi_request.PhyNum = mpt2sas_phy->phy_id; | |
987 | ||
988 | if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) { | |
989 | printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", | |
990 | ioc->name, __FILE__, __LINE__, __func__); | |
991 | return -ENXIO; | |
992 | } | |
993 | ||
994 | if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) | |
995 | printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status" | |
996 | "(0x%04x), loginfo(0x%08x)\n", ioc->name, | |
997 | mpt2sas_phy->phy_id, | |
998 | le16_to_cpu(mpi_reply.IOCStatus), | |
999 | le32_to_cpu(mpi_reply.IOCLogInfo)); | |
1000 | ||
1001 | return 0; | |
1002 | } | |
1003 | ||
1004 | /** | |
d5d135b3 | 1005 | * _transport_smp_handler - transport portal for smp passthru |
635374e7 EM |
1006 | * @shost: shost object |
1007 | * @rphy: sas transport rphy object | |
1008 | * @req: | |
1009 | * | |
1010 | * This used primarily for smp_utils. | |
1011 | * Example: | |
1012 | * smp_rep_general /sys/class/bsg/expander-5:0 | |
1013 | */ | |
1014 | static int | |
d5d135b3 | 1015 | _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, |
635374e7 EM |
1016 | struct request *req) |
1017 | { | |
1018 | struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); | |
1019 | Mpi2SmpPassthroughRequest_t *mpi_request; | |
1020 | Mpi2SmpPassthroughReply_t *mpi_reply; | |
1021 | int rc; | |
1022 | u16 smid; | |
1023 | u32 ioc_state; | |
1024 | unsigned long timeleft; | |
1025 | void *psge; | |
1026 | u32 sgl_flags; | |
1027 | u8 issue_reset = 0; | |
1028 | unsigned long flags; | |
1029 | dma_addr_t dma_addr_in = 0; | |
1030 | dma_addr_t dma_addr_out = 0; | |
1031 | u16 wait_state_count; | |
1032 | struct request *rsp = req->next_rq; | |
1033 | ||
1034 | if (!rsp) { | |
1035 | printk(MPT2SAS_ERR_FMT "%s: the smp response space is " | |
1036 | "missing\n", ioc->name, __func__); | |
1037 | return -EINVAL; | |
1038 | } | |
1039 | ||
1040 | /* do we need to support multiple segments? */ | |
1041 | if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) { | |
1042 | printk(MPT2SAS_ERR_FMT "%s: multiple segments req %u %u, " | |
1043 | "rsp %u %u\n", ioc->name, __func__, req->bio->bi_vcnt, | |
b0790410 | 1044 | blk_rq_bytes(req), rsp->bio->bi_vcnt, blk_rq_bytes(rsp)); |
635374e7 EM |
1045 | return -EINVAL; |
1046 | } | |
1047 | ||
1048 | spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); | |
1049 | if (ioc->ioc_reset_in_progress) { | |
1050 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); | |
1051 | printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n", | |
1052 | __func__, ioc->name); | |
1053 | return -EFAULT; | |
1054 | } | |
1055 | spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); | |
1056 | ||
1057 | rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex); | |
1058 | if (rc) | |
1059 | return rc; | |
1060 | ||
1061 | if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) { | |
1062 | printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", ioc->name, | |
1063 | __func__); | |
1064 | rc = -EAGAIN; | |
1065 | goto out; | |
1066 | } | |
1067 | ioc->transport_cmds.status = MPT2_CMD_PENDING; | |
1068 | ||
1069 | wait_state_count = 0; | |
1070 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
1071 | while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { | |
1072 | if (wait_state_count++ == 10) { | |
1073 | printk(MPT2SAS_ERR_FMT | |
1074 | "%s: failed due to ioc not operational\n", | |
1075 | ioc->name, __func__); | |
1076 | rc = -EFAULT; | |
1077 | goto out; | |
1078 | } | |
1079 | ssleep(1); | |
1080 | ioc_state = mpt2sas_base_get_iocstate(ioc, 1); | |
1081 | printk(MPT2SAS_INFO_FMT "%s: waiting for " | |
1082 | "operational state(count=%d)\n", ioc->name, | |
1083 | __func__, wait_state_count); | |
1084 | } | |
1085 | if (wait_state_count) | |
1086 | printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", | |
1087 | ioc->name, __func__); | |
1088 | ||
1089 | smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx); | |
1090 | if (!smid) { | |
1091 | printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", | |
1092 | ioc->name, __func__); | |
1093 | rc = -EAGAIN; | |
1094 | goto out; | |
1095 | } | |
1096 | ||
1097 | rc = 0; | |
1098 | mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); | |
1099 | ioc->transport_cmds.smid = smid; | |
1100 | ||
1101 | memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t)); | |
1102 | mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH; | |
1103 | mpi_request->PhysicalPort = 0xFF; | |
1104 | *((u64 *)&mpi_request->SASAddress) = (rphy) ? | |
1105 | cpu_to_le64(rphy->identify.sas_address) : | |
1106 | cpu_to_le64(ioc->sas_hba.sas_address); | |
b0790410 | 1107 | mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4); |
635374e7 EM |
1108 | psge = &mpi_request->SGL; |
1109 | ||
1110 | /* WRITE sgel first */ | |
1111 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
1112 | MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); | |
1113 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
1114 | dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), | |
b0790410 | 1115 | blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); |
635374e7 EM |
1116 | if (!dma_addr_out) { |
1117 | mpt2sas_base_free_smid(ioc, le16_to_cpu(smid)); | |
1118 | goto unmap; | |
1119 | } | |
1120 | ||
b0790410 | 1121 | ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(req) - 4), |
635374e7 EM |
1122 | dma_addr_out); |
1123 | ||
1124 | /* incr sgel */ | |
1125 | psge += ioc->sge_size; | |
1126 | ||
1127 | /* READ sgel last */ | |
1128 | sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | | |
1129 | MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | | |
1130 | MPI2_SGE_FLAGS_END_OF_LIST); | |
1131 | sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; | |
b0790410 TH |
1132 | dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), |
1133 | blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); | |
635374e7 EM |
1134 | if (!dma_addr_in) { |
1135 | mpt2sas_base_free_smid(ioc, le16_to_cpu(smid)); | |
1136 | goto unmap; | |
1137 | } | |
1138 | ||
b0790410 | 1139 | ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(rsp) + 4), |
635374e7 EM |
1140 | dma_addr_in); |
1141 | ||
1142 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - " | |
1143 | "sending smp request\n", ioc->name, __func__)); | |
1144 | ||
1145 | mpt2sas_base_put_smid_default(ioc, smid, 0 /* VF_ID */); | |
1146 | timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done, | |
1147 | 10*HZ); | |
1148 | ||
1149 | if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) { | |
1150 | printk(MPT2SAS_ERR_FMT "%s : timeout\n", | |
1151 | __func__, ioc->name); | |
1152 | _debug_dump_mf(mpi_request, | |
1153 | sizeof(Mpi2SmpPassthroughRequest_t)/4); | |
1154 | if (!(ioc->transport_cmds.status & MPT2_CMD_RESET)) | |
1155 | issue_reset = 1; | |
1156 | goto issue_host_reset; | |
1157 | } | |
1158 | ||
1159 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - " | |
1160 | "complete\n", ioc->name, __func__)); | |
1161 | ||
1162 | if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) { | |
1163 | ||
1164 | mpi_reply = ioc->transport_cmds.reply; | |
1165 | ||
1166 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT | |
1167 | "%s - reply data transfer size(%d)\n", | |
1168 | ioc->name, __func__, | |
1169 | le16_to_cpu(mpi_reply->ResponseDataLength))); | |
1170 | ||
1171 | memcpy(req->sense, mpi_reply, sizeof(*mpi_reply)); | |
1172 | req->sense_len = sizeof(*mpi_reply); | |
5f49f631 TH |
1173 | req->resid_len = 0; |
1174 | rsp->resid_len -= mpi_reply->ResponseDataLength; | |
635374e7 EM |
1175 | } else { |
1176 | dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT | |
1177 | "%s - no reply\n", ioc->name, __func__)); | |
1178 | rc = -ENXIO; | |
1179 | } | |
1180 | ||
1181 | issue_host_reset: | |
1182 | if (issue_reset) { | |
1183 | mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, | |
1184 | FORCE_BIG_HAMMER); | |
1185 | rc = -ETIMEDOUT; | |
1186 | } | |
1187 | ||
1188 | unmap: | |
1189 | if (dma_addr_out) | |
b0790410 | 1190 | pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req), |
635374e7 EM |
1191 | PCI_DMA_BIDIRECTIONAL); |
1192 | if (dma_addr_in) | |
b0790410 | 1193 | pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp), |
635374e7 EM |
1194 | PCI_DMA_BIDIRECTIONAL); |
1195 | ||
1196 | out: | |
1197 | ioc->transport_cmds.status = MPT2_CMD_NOT_USED; | |
1198 | mutex_unlock(&ioc->transport_cmds.mutex); | |
1199 | return rc; | |
1200 | } | |
1201 | ||
1202 | struct sas_function_template mpt2sas_transport_functions = { | |
d5d135b3 EM |
1203 | .get_linkerrors = _transport_get_linkerrors, |
1204 | .get_enclosure_identifier = _transport_get_enclosure_identifier, | |
1205 | .get_bay_identifier = _transport_get_bay_identifier, | |
1206 | .phy_reset = _transport_phy_reset, | |
1207 | .smp_handler = _transport_smp_handler, | |
635374e7 EM |
1208 | }; |
1209 | ||
1210 | struct scsi_transport_template *mpt2sas_transport_template; |