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26780d9e BG |
1 | /* |
2 | * linux/drivers/scsi/esas2r/esas2r_ioctl.c | |
3 | * For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers | |
4 | * | |
5 | * Copyright (c) 2001-2013 ATTO Technology, Inc. | |
6 | * (mailto:linuxdrivers@attotech.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 "esas2r.h" | |
45 | ||
46 | /* | |
47 | * Buffered ioctl handlers. A buffered ioctl is one which requires that we | |
48 | * allocate a DMA-able memory area to communicate with the firmware. In | |
49 | * order to prevent continually allocating and freeing consistent memory, | |
50 | * we will allocate a global buffer the first time we need it and re-use | |
51 | * it for subsequent ioctl calls that require it. | |
52 | */ | |
53 | ||
54 | u8 *esas2r_buffered_ioctl; | |
55 | dma_addr_t esas2r_buffered_ioctl_addr; | |
56 | u32 esas2r_buffered_ioctl_size; | |
57 | struct pci_dev *esas2r_buffered_ioctl_pcid; | |
58 | ||
59 | static DEFINE_SEMAPHORE(buffered_ioctl_semaphore); | |
60 | typedef int (*BUFFERED_IOCTL_CALLBACK)(struct esas2r_adapter *, | |
61 | struct esas2r_request *, | |
62 | struct esas2r_sg_context *, | |
63 | void *); | |
64 | typedef void (*BUFFERED_IOCTL_DONE_CALLBACK)(struct esas2r_adapter *, | |
65 | struct esas2r_request *, void *); | |
66 | ||
67 | struct esas2r_buffered_ioctl { | |
68 | struct esas2r_adapter *a; | |
69 | void *ioctl; | |
70 | u32 length; | |
71 | u32 control_code; | |
72 | u32 offset; | |
73 | BUFFERED_IOCTL_CALLBACK | |
74 | callback; | |
75 | void *context; | |
76 | BUFFERED_IOCTL_DONE_CALLBACK | |
77 | done_callback; | |
78 | void *done_context; | |
79 | ||
80 | }; | |
81 | ||
82 | static void complete_fm_api_req(struct esas2r_adapter *a, | |
83 | struct esas2r_request *rq) | |
84 | { | |
85 | a->fm_api_command_done = 1; | |
86 | wake_up_interruptible(&a->fm_api_waiter); | |
87 | } | |
88 | ||
89 | /* Callbacks for building scatter/gather lists for FM API requests */ | |
90 | static u32 get_physaddr_fm_api(struct esas2r_sg_context *sgc, u64 *addr) | |
91 | { | |
92 | struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter; | |
93 | int offset = sgc->cur_offset - a->save_offset; | |
94 | ||
95 | (*addr) = a->firmware.phys + offset; | |
96 | return a->firmware.orig_len - offset; | |
97 | } | |
98 | ||
99 | static u32 get_physaddr_fm_api_header(struct esas2r_sg_context *sgc, u64 *addr) | |
100 | { | |
101 | struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter; | |
102 | int offset = sgc->cur_offset - a->save_offset; | |
103 | ||
104 | (*addr) = a->firmware.header_buff_phys + offset; | |
105 | return sizeof(struct esas2r_flash_img) - offset; | |
106 | } | |
107 | ||
108 | /* Handle EXPRESS_IOCTL_RW_FIRMWARE ioctl with img_type = FW_IMG_FM_API. */ | |
109 | static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi) | |
110 | { | |
111 | struct esas2r_request *rq; | |
112 | ||
113 | if (down_interruptible(&a->fm_api_semaphore)) { | |
114 | fi->status = FI_STAT_BUSY; | |
115 | return; | |
116 | } | |
117 | ||
118 | rq = esas2r_alloc_request(a); | |
119 | if (rq == NULL) { | |
120 | up(&a->fm_api_semaphore); | |
121 | fi->status = FI_STAT_BUSY; | |
122 | return; | |
123 | } | |
124 | ||
125 | if (fi == &a->firmware.header) { | |
126 | a->firmware.header_buff = dma_alloc_coherent(&a->pcid->dev, | |
127 | (size_t)sizeof( | |
128 | struct | |
129 | esas2r_flash_img), | |
130 | (dma_addr_t *)&a-> | |
131 | firmware. | |
132 | header_buff_phys, | |
133 | GFP_KERNEL); | |
134 | ||
135 | if (a->firmware.header_buff == NULL) { | |
136 | esas2r_debug("failed to allocate header buffer!"); | |
137 | fi->status = FI_STAT_BUSY; | |
138 | return; | |
139 | } | |
140 | ||
141 | memcpy(a->firmware.header_buff, fi, | |
142 | sizeof(struct esas2r_flash_img)); | |
143 | a->save_offset = a->firmware.header_buff; | |
144 | a->fm_api_sgc.get_phys_addr = | |
145 | (PGETPHYSADDR)get_physaddr_fm_api_header; | |
146 | } else { | |
147 | a->save_offset = (u8 *)fi; | |
148 | a->fm_api_sgc.get_phys_addr = | |
149 | (PGETPHYSADDR)get_physaddr_fm_api; | |
150 | } | |
151 | ||
152 | rq->comp_cb = complete_fm_api_req; | |
153 | a->fm_api_command_done = 0; | |
154 | a->fm_api_sgc.cur_offset = a->save_offset; | |
155 | ||
156 | if (!esas2r_fm_api(a, (struct esas2r_flash_img *)a->save_offset, rq, | |
157 | &a->fm_api_sgc)) | |
158 | goto all_done; | |
159 | ||
160 | /* Now wait around for it to complete. */ | |
161 | while (!a->fm_api_command_done) | |
162 | wait_event_interruptible(a->fm_api_waiter, | |
163 | a->fm_api_command_done); | |
164 | all_done: | |
165 | if (fi == &a->firmware.header) { | |
166 | memcpy(fi, a->firmware.header_buff, | |
167 | sizeof(struct esas2r_flash_img)); | |
168 | ||
169 | dma_free_coherent(&a->pcid->dev, | |
170 | (size_t)sizeof(struct esas2r_flash_img), | |
171 | a->firmware.header_buff, | |
172 | (dma_addr_t)a->firmware.header_buff_phys); | |
173 | } | |
174 | ||
175 | up(&a->fm_api_semaphore); | |
176 | esas2r_free_request(a, (struct esas2r_request *)rq); | |
177 | return; | |
178 | ||
179 | } | |
180 | ||
181 | static void complete_nvr_req(struct esas2r_adapter *a, | |
182 | struct esas2r_request *rq) | |
183 | { | |
184 | a->nvram_command_done = 1; | |
185 | wake_up_interruptible(&a->nvram_waiter); | |
186 | } | |
187 | ||
188 | /* Callback for building scatter/gather lists for buffered ioctls */ | |
189 | static u32 get_physaddr_buffered_ioctl(struct esas2r_sg_context *sgc, | |
190 | u64 *addr) | |
191 | { | |
192 | int offset = (u8 *)sgc->cur_offset - esas2r_buffered_ioctl; | |
193 | ||
194 | (*addr) = esas2r_buffered_ioctl_addr + offset; | |
195 | return esas2r_buffered_ioctl_size - offset; | |
196 | } | |
197 | ||
198 | static void complete_buffered_ioctl_req(struct esas2r_adapter *a, | |
199 | struct esas2r_request *rq) | |
200 | { | |
201 | a->buffered_ioctl_done = 1; | |
202 | wake_up_interruptible(&a->buffered_ioctl_waiter); | |
203 | } | |
204 | ||
205 | static u8 handle_buffered_ioctl(struct esas2r_buffered_ioctl *bi) | |
206 | { | |
207 | struct esas2r_adapter *a = bi->a; | |
208 | struct esas2r_request *rq; | |
209 | struct esas2r_sg_context sgc; | |
210 | u8 result = IOCTL_SUCCESS; | |
211 | ||
212 | if (down_interruptible(&buffered_ioctl_semaphore)) | |
213 | return IOCTL_OUT_OF_RESOURCES; | |
214 | ||
215 | /* allocate a buffer or use the existing buffer. */ | |
216 | if (esas2r_buffered_ioctl) { | |
217 | if (esas2r_buffered_ioctl_size < bi->length) { | |
218 | /* free the too-small buffer and get a new one */ | |
219 | dma_free_coherent(&a->pcid->dev, | |
220 | (size_t)esas2r_buffered_ioctl_size, | |
221 | esas2r_buffered_ioctl, | |
222 | esas2r_buffered_ioctl_addr); | |
223 | ||
224 | goto allocate_buffer; | |
225 | } | |
226 | } else { | |
227 | allocate_buffer: | |
228 | esas2r_buffered_ioctl_size = bi->length; | |
229 | esas2r_buffered_ioctl_pcid = a->pcid; | |
230 | esas2r_buffered_ioctl = dma_alloc_coherent(&a->pcid->dev, | |
231 | (size_t) | |
232 | esas2r_buffered_ioctl_size, | |
233 | & | |
234 | esas2r_buffered_ioctl_addr, | |
235 | GFP_KERNEL); | |
236 | } | |
237 | ||
238 | if (!esas2r_buffered_ioctl) { | |
239 | esas2r_log(ESAS2R_LOG_CRIT, | |
240 | "could not allocate %d bytes of consistent memory " | |
241 | "for a buffered ioctl!", | |
242 | bi->length); | |
243 | ||
244 | esas2r_debug("buffered ioctl alloc failure"); | |
245 | result = IOCTL_OUT_OF_RESOURCES; | |
246 | goto exit_cleanly; | |
247 | } | |
248 | ||
249 | memcpy(esas2r_buffered_ioctl, bi->ioctl, bi->length); | |
250 | ||
251 | rq = esas2r_alloc_request(a); | |
252 | if (rq == NULL) { | |
253 | esas2r_log(ESAS2R_LOG_CRIT, | |
254 | "could not allocate an internal request"); | |
255 | ||
256 | result = IOCTL_OUT_OF_RESOURCES; | |
257 | esas2r_debug("buffered ioctl - no requests"); | |
258 | goto exit_cleanly; | |
259 | } | |
260 | ||
261 | a->buffered_ioctl_done = 0; | |
262 | rq->comp_cb = complete_buffered_ioctl_req; | |
263 | sgc.cur_offset = esas2r_buffered_ioctl + bi->offset; | |
264 | sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_buffered_ioctl; | |
265 | sgc.length = esas2r_buffered_ioctl_size; | |
266 | ||
267 | if (!(*bi->callback)(a, rq, &sgc, bi->context)) { | |
268 | /* completed immediately, no need to wait */ | |
269 | a->buffered_ioctl_done = 0; | |
270 | goto free_andexit_cleanly; | |
271 | } | |
272 | ||
273 | /* now wait around for it to complete. */ | |
274 | while (!a->buffered_ioctl_done) | |
275 | wait_event_interruptible(a->buffered_ioctl_waiter, | |
276 | a->buffered_ioctl_done); | |
277 | ||
278 | free_andexit_cleanly: | |
279 | if (result == IOCTL_SUCCESS && bi->done_callback) | |
280 | (*bi->done_callback)(a, rq, bi->done_context); | |
281 | ||
282 | esas2r_free_request(a, rq); | |
283 | ||
284 | exit_cleanly: | |
285 | if (result == IOCTL_SUCCESS) | |
286 | memcpy(bi->ioctl, esas2r_buffered_ioctl, bi->length); | |
287 | ||
288 | up(&buffered_ioctl_semaphore); | |
289 | return result; | |
290 | } | |
291 | ||
292 | /* SMP ioctl support */ | |
293 | static int smp_ioctl_callback(struct esas2r_adapter *a, | |
294 | struct esas2r_request *rq, | |
295 | struct esas2r_sg_context *sgc, void *context) | |
296 | { | |
297 | struct atto_ioctl_smp *si = | |
298 | (struct atto_ioctl_smp *)esas2r_buffered_ioctl; | |
299 | ||
300 | esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge); | |
301 | esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_SMP); | |
302 | ||
303 | if (!esas2r_build_sg_list(a, rq, sgc)) { | |
304 | si->status = ATTO_STS_OUT_OF_RSRC; | |
305 | return false; | |
306 | } | |
307 | ||
308 | esas2r_start_request(a, rq); | |
309 | return true; | |
310 | } | |
311 | ||
312 | static u8 handle_smp_ioctl(struct esas2r_adapter *a, struct atto_ioctl_smp *si) | |
313 | { | |
314 | struct esas2r_buffered_ioctl bi; | |
315 | ||
316 | memset(&bi, 0, sizeof(bi)); | |
317 | ||
318 | bi.a = a; | |
319 | bi.ioctl = si; | |
320 | bi.length = sizeof(struct atto_ioctl_smp) | |
321 | + le32_to_cpu(si->req_length) | |
322 | + le32_to_cpu(si->rsp_length); | |
323 | bi.offset = 0; | |
324 | bi.callback = smp_ioctl_callback; | |
325 | return handle_buffered_ioctl(&bi); | |
326 | } | |
327 | ||
328 | ||
329 | /* CSMI ioctl support */ | |
330 | static void esas2r_csmi_ioctl_tunnel_comp_cb(struct esas2r_adapter *a, | |
331 | struct esas2r_request *rq) | |
332 | { | |
333 | rq->target_id = le16_to_cpu(rq->func_rsp.ioctl_rsp.csmi.target_id); | |
334 | rq->vrq->scsi.flags |= cpu_to_le32(rq->func_rsp.ioctl_rsp.csmi.lun); | |
335 | ||
336 | /* Now call the original completion callback. */ | |
337 | (*rq->aux_req_cb)(a, rq); | |
338 | } | |
339 | ||
340 | /* Tunnel a CSMI IOCTL to the back end driver for processing. */ | |
341 | static bool csmi_ioctl_tunnel(struct esas2r_adapter *a, | |
342 | union atto_ioctl_csmi *ci, | |
343 | struct esas2r_request *rq, | |
344 | struct esas2r_sg_context *sgc, | |
345 | u32 ctrl_code, | |
346 | u16 target_id) | |
347 | { | |
348 | struct atto_vda_ioctl_req *ioctl = &rq->vrq->ioctl; | |
349 | ||
350 | if (a->flags & AF_DEGRADED_MODE) | |
351 | return false; | |
352 | ||
353 | esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge); | |
354 | esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_CSMI); | |
355 | ioctl->csmi.ctrl_code = cpu_to_le32(ctrl_code); | |
356 | ioctl->csmi.target_id = cpu_to_le16(target_id); | |
357 | ioctl->csmi.lun = (u8)le32_to_cpu(rq->vrq->scsi.flags); | |
358 | ||
359 | /* | |
360 | * Always usurp the completion callback since the interrupt callback | |
361 | * mechanism may be used. | |
362 | */ | |
363 | rq->aux_req_cx = ci; | |
364 | rq->aux_req_cb = rq->comp_cb; | |
365 | rq->comp_cb = esas2r_csmi_ioctl_tunnel_comp_cb; | |
366 | ||
367 | if (!esas2r_build_sg_list(a, rq, sgc)) | |
368 | return false; | |
369 | ||
370 | esas2r_start_request(a, rq); | |
371 | return true; | |
372 | } | |
373 | ||
374 | static bool check_lun(struct scsi_lun lun) | |
375 | { | |
376 | bool result; | |
377 | ||
378 | result = ((lun.scsi_lun[7] == 0) && | |
379 | (lun.scsi_lun[6] == 0) && | |
380 | (lun.scsi_lun[5] == 0) && | |
381 | (lun.scsi_lun[4] == 0) && | |
382 | (lun.scsi_lun[3] == 0) && | |
383 | (lun.scsi_lun[2] == 0) && | |
384 | /* Byte 1 is intentionally skipped */ | |
385 | (lun.scsi_lun[0] == 0)); | |
386 | ||
387 | return result; | |
388 | } | |
389 | ||
390 | static int csmi_ioctl_callback(struct esas2r_adapter *a, | |
391 | struct esas2r_request *rq, | |
392 | struct esas2r_sg_context *sgc, void *context) | |
393 | { | |
394 | struct atto_csmi *ci = (struct atto_csmi *)context; | |
395 | union atto_ioctl_csmi *ioctl_csmi = | |
396 | (union atto_ioctl_csmi *)esas2r_buffered_ioctl; | |
397 | u8 path = 0; | |
398 | u8 tid = 0; | |
399 | u8 lun = 0; | |
400 | u32 sts = CSMI_STS_SUCCESS; | |
401 | struct esas2r_target *t; | |
402 | unsigned long flags; | |
403 | ||
404 | if (ci->control_code == CSMI_CC_GET_DEV_ADDR) { | |
405 | struct atto_csmi_get_dev_addr *gda = &ci->data.dev_addr; | |
406 | ||
407 | path = gda->path_id; | |
408 | tid = gda->target_id; | |
409 | lun = gda->lun; | |
410 | } else if (ci->control_code == CSMI_CC_TASK_MGT) { | |
411 | struct atto_csmi_task_mgmt *tm = &ci->data.tsk_mgt; | |
412 | ||
413 | path = tm->path_id; | |
414 | tid = tm->target_id; | |
415 | lun = tm->lun; | |
416 | } | |
417 | ||
8d3ac484 | 418 | if (path > 0) { |
26780d9e BG |
419 | rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32( |
420 | CSMI_STS_INV_PARAM); | |
421 | return false; | |
422 | } | |
423 | ||
424 | rq->target_id = tid; | |
425 | rq->vrq->scsi.flags |= cpu_to_le32(lun); | |
426 | ||
427 | switch (ci->control_code) { | |
428 | case CSMI_CC_GET_DRVR_INFO: | |
429 | { | |
430 | struct atto_csmi_get_driver_info *gdi = &ioctl_csmi->drvr_info; | |
431 | ||
432 | strcpy(gdi->description, esas2r_get_model_name(a)); | |
433 | gdi->csmi_major_rev = CSMI_MAJOR_REV; | |
434 | gdi->csmi_minor_rev = CSMI_MINOR_REV; | |
435 | break; | |
436 | } | |
437 | ||
438 | case CSMI_CC_GET_CNTLR_CFG: | |
439 | { | |
440 | struct atto_csmi_get_cntlr_cfg *gcc = &ioctl_csmi->cntlr_cfg; | |
441 | ||
442 | gcc->base_io_addr = 0; | |
443 | pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_2, | |
444 | &gcc->base_memaddr_lo); | |
445 | pci_read_config_dword(a->pcid, PCI_BASE_ADDRESS_3, | |
446 | &gcc->base_memaddr_hi); | |
447 | gcc->board_id = MAKEDWORD(a->pcid->subsystem_device, | |
448 | a->pcid->subsystem_vendor); | |
449 | gcc->slot_num = CSMI_SLOT_NUM_UNKNOWN; | |
450 | gcc->cntlr_class = CSMI_CNTLR_CLASS_HBA; | |
451 | gcc->io_bus_type = CSMI_BUS_TYPE_PCI; | |
452 | gcc->pci_addr.bus_num = a->pcid->bus->number; | |
453 | gcc->pci_addr.device_num = PCI_SLOT(a->pcid->devfn); | |
454 | gcc->pci_addr.function_num = PCI_FUNC(a->pcid->devfn); | |
455 | ||
456 | memset(gcc->serial_num, 0, sizeof(gcc->serial_num)); | |
457 | ||
458 | gcc->major_rev = LOBYTE(LOWORD(a->fw_version)); | |
459 | gcc->minor_rev = HIBYTE(LOWORD(a->fw_version)); | |
460 | gcc->build_rev = LOBYTE(HIWORD(a->fw_version)); | |
461 | gcc->release_rev = HIBYTE(HIWORD(a->fw_version)); | |
462 | gcc->bios_major_rev = HIBYTE(HIWORD(a->flash_ver)); | |
463 | gcc->bios_minor_rev = LOBYTE(HIWORD(a->flash_ver)); | |
464 | gcc->bios_build_rev = LOWORD(a->flash_ver); | |
465 | ||
466 | if (a->flags2 & AF2_THUNDERLINK) | |
467 | gcc->cntlr_flags = CSMI_CNTLRF_SAS_HBA | |
468 | | CSMI_CNTLRF_SATA_HBA; | |
469 | else | |
470 | gcc->cntlr_flags = CSMI_CNTLRF_SAS_RAID | |
471 | | CSMI_CNTLRF_SATA_RAID; | |
472 | ||
473 | gcc->rrom_major_rev = 0; | |
474 | gcc->rrom_minor_rev = 0; | |
475 | gcc->rrom_build_rev = 0; | |
476 | gcc->rrom_release_rev = 0; | |
477 | gcc->rrom_biosmajor_rev = 0; | |
478 | gcc->rrom_biosminor_rev = 0; | |
479 | gcc->rrom_biosbuild_rev = 0; | |
480 | gcc->rrom_biosrelease_rev = 0; | |
481 | break; | |
482 | } | |
483 | ||
484 | case CSMI_CC_GET_CNTLR_STS: | |
485 | { | |
486 | struct atto_csmi_get_cntlr_sts *gcs = &ioctl_csmi->cntlr_sts; | |
487 | ||
488 | if (a->flags & AF_DEGRADED_MODE) | |
489 | gcs->status = CSMI_CNTLR_STS_FAILED; | |
490 | else | |
491 | gcs->status = CSMI_CNTLR_STS_GOOD; | |
492 | ||
493 | gcs->offline_reason = CSMI_OFFLINE_NO_REASON; | |
494 | break; | |
495 | } | |
496 | ||
497 | case CSMI_CC_FW_DOWNLOAD: | |
498 | case CSMI_CC_GET_RAID_INFO: | |
499 | case CSMI_CC_GET_RAID_CFG: | |
500 | ||
501 | sts = CSMI_STS_BAD_CTRL_CODE; | |
502 | break; | |
503 | ||
504 | case CSMI_CC_SMP_PASSTHRU: | |
505 | case CSMI_CC_SSP_PASSTHRU: | |
506 | case CSMI_CC_STP_PASSTHRU: | |
507 | case CSMI_CC_GET_PHY_INFO: | |
508 | case CSMI_CC_SET_PHY_INFO: | |
509 | case CSMI_CC_GET_LINK_ERRORS: | |
510 | case CSMI_CC_GET_SATA_SIG: | |
511 | case CSMI_CC_GET_CONN_INFO: | |
512 | case CSMI_CC_PHY_CTRL: | |
513 | ||
514 | if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc, | |
515 | ci->control_code, | |
516 | ESAS2R_TARG_ID_INV)) { | |
517 | sts = CSMI_STS_FAILED; | |
518 | break; | |
519 | } | |
520 | ||
521 | return true; | |
522 | ||
523 | case CSMI_CC_GET_SCSI_ADDR: | |
524 | { | |
525 | struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr; | |
526 | ||
527 | struct scsi_lun lun; | |
528 | ||
529 | memcpy(&lun, gsa->sas_lun, sizeof(struct scsi_lun)); | |
530 | ||
531 | if (!check_lun(lun)) { | |
532 | sts = CSMI_STS_NO_SCSI_ADDR; | |
533 | break; | |
534 | } | |
535 | ||
536 | /* make sure the device is present */ | |
537 | spin_lock_irqsave(&a->mem_lock, flags); | |
538 | t = esas2r_targ_db_find_by_sas_addr(a, (u64 *)gsa->sas_addr); | |
539 | spin_unlock_irqrestore(&a->mem_lock, flags); | |
540 | ||
541 | if (t == NULL) { | |
542 | sts = CSMI_STS_NO_SCSI_ADDR; | |
543 | break; | |
544 | } | |
545 | ||
546 | gsa->host_index = 0xFF; | |
547 | gsa->lun = gsa->sas_lun[1]; | |
548 | rq->target_id = esas2r_targ_get_id(t, a); | |
549 | break; | |
550 | } | |
551 | ||
552 | case CSMI_CC_GET_DEV_ADDR: | |
553 | { | |
554 | struct atto_csmi_get_dev_addr *gda = &ioctl_csmi->dev_addr; | |
555 | ||
556 | /* make sure the target is present */ | |
557 | t = a->targetdb + rq->target_id; | |
558 | ||
559 | if (t >= a->targetdb_end | |
560 | || t->target_state != TS_PRESENT | |
561 | || t->sas_addr == 0) { | |
562 | sts = CSMI_STS_NO_DEV_ADDR; | |
563 | break; | |
564 | } | |
565 | ||
566 | /* fill in the result */ | |
567 | *(u64 *)gda->sas_addr = t->sas_addr; | |
568 | memset(gda->sas_lun, 0, sizeof(gda->sas_lun)); | |
569 | gda->sas_lun[1] = (u8)le32_to_cpu(rq->vrq->scsi.flags); | |
570 | break; | |
571 | } | |
572 | ||
573 | case CSMI_CC_TASK_MGT: | |
574 | ||
575 | /* make sure the target is present */ | |
576 | t = a->targetdb + rq->target_id; | |
577 | ||
578 | if (t >= a->targetdb_end | |
579 | || t->target_state != TS_PRESENT | |
580 | || !(t->flags & TF_PASS_THRU)) { | |
581 | sts = CSMI_STS_NO_DEV_ADDR; | |
582 | break; | |
583 | } | |
584 | ||
585 | if (!csmi_ioctl_tunnel(a, ioctl_csmi, rq, sgc, | |
586 | ci->control_code, | |
587 | t->phys_targ_id)) { | |
588 | sts = CSMI_STS_FAILED; | |
589 | break; | |
590 | } | |
591 | ||
592 | return true; | |
593 | ||
594 | default: | |
595 | ||
596 | sts = CSMI_STS_BAD_CTRL_CODE; | |
597 | break; | |
598 | } | |
599 | ||
600 | rq->func_rsp.ioctl_rsp.csmi.csmi_status = cpu_to_le32(sts); | |
601 | ||
602 | return false; | |
603 | } | |
604 | ||
605 | ||
606 | static void csmi_ioctl_done_callback(struct esas2r_adapter *a, | |
607 | struct esas2r_request *rq, void *context) | |
608 | { | |
609 | struct atto_csmi *ci = (struct atto_csmi *)context; | |
610 | union atto_ioctl_csmi *ioctl_csmi = | |
611 | (union atto_ioctl_csmi *)esas2r_buffered_ioctl; | |
612 | ||
613 | switch (ci->control_code) { | |
614 | case CSMI_CC_GET_DRVR_INFO: | |
615 | { | |
616 | struct atto_csmi_get_driver_info *gdi = | |
617 | &ioctl_csmi->drvr_info; | |
618 | ||
619 | strcpy(gdi->name, ESAS2R_VERSION_STR); | |
620 | ||
621 | gdi->major_rev = ESAS2R_MAJOR_REV; | |
622 | gdi->minor_rev = ESAS2R_MINOR_REV; | |
623 | gdi->build_rev = 0; | |
624 | gdi->release_rev = 0; | |
625 | break; | |
626 | } | |
627 | ||
628 | case CSMI_CC_GET_SCSI_ADDR: | |
629 | { | |
630 | struct atto_csmi_get_scsi_addr *gsa = &ioctl_csmi->scsi_addr; | |
631 | ||
632 | if (le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status) == | |
633 | CSMI_STS_SUCCESS) { | |
634 | gsa->target_id = rq->target_id; | |
635 | gsa->path_id = 0; | |
636 | } | |
637 | ||
638 | break; | |
639 | } | |
640 | } | |
641 | ||
642 | ci->status = le32_to_cpu(rq->func_rsp.ioctl_rsp.csmi.csmi_status); | |
643 | } | |
644 | ||
645 | ||
646 | static u8 handle_csmi_ioctl(struct esas2r_adapter *a, struct atto_csmi *ci) | |
647 | { | |
648 | struct esas2r_buffered_ioctl bi; | |
649 | ||
650 | memset(&bi, 0, sizeof(bi)); | |
651 | ||
652 | bi.a = a; | |
653 | bi.ioctl = &ci->data; | |
654 | bi.length = sizeof(union atto_ioctl_csmi); | |
655 | bi.offset = 0; | |
656 | bi.callback = csmi_ioctl_callback; | |
657 | bi.context = ci; | |
658 | bi.done_callback = csmi_ioctl_done_callback; | |
659 | bi.done_context = ci; | |
660 | ||
661 | return handle_buffered_ioctl(&bi); | |
662 | } | |
663 | ||
664 | /* ATTO HBA ioctl support */ | |
665 | ||
666 | /* Tunnel an ATTO HBA IOCTL to the back end driver for processing. */ | |
667 | static bool hba_ioctl_tunnel(struct esas2r_adapter *a, | |
668 | struct atto_ioctl *hi, | |
669 | struct esas2r_request *rq, | |
670 | struct esas2r_sg_context *sgc) | |
671 | { | |
672 | esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge); | |
673 | ||
674 | esas2r_build_ioctl_req(a, rq, sgc->length, VDA_IOCTL_HBA); | |
675 | ||
676 | if (!esas2r_build_sg_list(a, rq, sgc)) { | |
677 | hi->status = ATTO_STS_OUT_OF_RSRC; | |
678 | ||
679 | return false; | |
680 | } | |
681 | ||
682 | esas2r_start_request(a, rq); | |
683 | ||
684 | return true; | |
685 | } | |
686 | ||
687 | static void scsi_passthru_comp_cb(struct esas2r_adapter *a, | |
688 | struct esas2r_request *rq) | |
689 | { | |
690 | struct atto_ioctl *hi = (struct atto_ioctl *)rq->aux_req_cx; | |
691 | struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru; | |
692 | u8 sts = ATTO_SPT_RS_FAILED; | |
693 | ||
694 | spt->scsi_status = rq->func_rsp.scsi_rsp.scsi_stat; | |
695 | spt->sense_length = rq->sense_len; | |
696 | spt->residual_length = | |
697 | le32_to_cpu(rq->func_rsp.scsi_rsp.residual_length); | |
698 | ||
699 | switch (rq->req_stat) { | |
700 | case RS_SUCCESS: | |
701 | case RS_SCSI_ERROR: | |
702 | sts = ATTO_SPT_RS_SUCCESS; | |
703 | break; | |
704 | case RS_UNDERRUN: | |
705 | sts = ATTO_SPT_RS_UNDERRUN; | |
706 | break; | |
707 | case RS_OVERRUN: | |
708 | sts = ATTO_SPT_RS_OVERRUN; | |
709 | break; | |
710 | case RS_SEL: | |
711 | case RS_SEL2: | |
712 | sts = ATTO_SPT_RS_NO_DEVICE; | |
713 | break; | |
714 | case RS_NO_LUN: | |
715 | sts = ATTO_SPT_RS_NO_LUN; | |
716 | break; | |
717 | case RS_TIMEOUT: | |
718 | sts = ATTO_SPT_RS_TIMEOUT; | |
719 | break; | |
720 | case RS_DEGRADED: | |
721 | sts = ATTO_SPT_RS_DEGRADED; | |
722 | break; | |
723 | case RS_BUSY: | |
724 | sts = ATTO_SPT_RS_BUSY; | |
725 | break; | |
726 | case RS_ABORTED: | |
727 | sts = ATTO_SPT_RS_ABORTED; | |
728 | break; | |
729 | case RS_RESET: | |
730 | sts = ATTO_SPT_RS_BUS_RESET; | |
731 | break; | |
732 | } | |
733 | ||
734 | spt->req_status = sts; | |
735 | ||
736 | /* Update the target ID to the next one present. */ | |
737 | spt->target_id = | |
738 | esas2r_targ_db_find_next_present(a, (u16)spt->target_id); | |
739 | ||
740 | /* Done, call the completion callback. */ | |
741 | (*rq->aux_req_cb)(a, rq); | |
742 | } | |
743 | ||
744 | static int hba_ioctl_callback(struct esas2r_adapter *a, | |
745 | struct esas2r_request *rq, | |
746 | struct esas2r_sg_context *sgc, | |
747 | void *context) | |
748 | { | |
749 | struct atto_ioctl *hi = (struct atto_ioctl *)esas2r_buffered_ioctl; | |
750 | ||
751 | hi->status = ATTO_STS_SUCCESS; | |
752 | ||
753 | switch (hi->function) { | |
754 | case ATTO_FUNC_GET_ADAP_INFO: | |
755 | { | |
756 | u8 *class_code = (u8 *)&a->pcid->class; | |
757 | ||
758 | struct atto_hba_get_adapter_info *gai = | |
759 | &hi->data.get_adap_info; | |
760 | int pcie_cap_reg; | |
761 | ||
762 | if (hi->flags & HBAF_TUNNEL) { | |
763 | hi->status = ATTO_STS_UNSUPPORTED; | |
764 | break; | |
765 | } | |
766 | ||
767 | if (hi->version > ATTO_VER_GET_ADAP_INFO0) { | |
768 | hi->status = ATTO_STS_INV_VERSION; | |
769 | hi->version = ATTO_VER_GET_ADAP_INFO0; | |
770 | break; | |
771 | } | |
772 | ||
773 | memset(gai, 0, sizeof(*gai)); | |
774 | ||
775 | gai->pci.vendor_id = a->pcid->vendor; | |
776 | gai->pci.device_id = a->pcid->device; | |
777 | gai->pci.ss_vendor_id = a->pcid->subsystem_vendor; | |
778 | gai->pci.ss_device_id = a->pcid->subsystem_device; | |
779 | gai->pci.class_code[0] = class_code[0]; | |
780 | gai->pci.class_code[1] = class_code[1]; | |
781 | gai->pci.class_code[2] = class_code[2]; | |
782 | gai->pci.rev_id = a->pcid->revision; | |
783 | gai->pci.bus_num = a->pcid->bus->number; | |
784 | gai->pci.dev_num = PCI_SLOT(a->pcid->devfn); | |
785 | gai->pci.func_num = PCI_FUNC(a->pcid->devfn); | |
786 | ||
787 | pcie_cap_reg = pci_find_capability(a->pcid, PCI_CAP_ID_EXP); | |
788 | if (pcie_cap_reg) { | |
789 | u16 stat; | |
790 | u32 caps; | |
791 | ||
792 | pci_read_config_word(a->pcid, | |
793 | pcie_cap_reg + PCI_EXP_LNKSTA, | |
794 | &stat); | |
795 | pci_read_config_dword(a->pcid, | |
796 | pcie_cap_reg + PCI_EXP_LNKCAP, | |
797 | &caps); | |
798 | ||
799 | gai->pci.link_speed_curr = | |
800 | (u8)(stat & PCI_EXP_LNKSTA_CLS); | |
801 | gai->pci.link_speed_max = | |
802 | (u8)(caps & PCI_EXP_LNKCAP_SLS); | |
803 | gai->pci.link_width_curr = | |
804 | (u8)((stat & PCI_EXP_LNKSTA_NLW) | |
805 | >> PCI_EXP_LNKSTA_NLW_SHIFT); | |
806 | gai->pci.link_width_max = | |
807 | (u8)((caps & PCI_EXP_LNKCAP_MLW) | |
808 | >> 4); | |
809 | } | |
810 | ||
811 | gai->pci.msi_vector_cnt = 1; | |
812 | ||
813 | if (a->pcid->msix_enabled) | |
814 | gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSIX; | |
815 | else if (a->pcid->msi_enabled) | |
816 | gai->pci.interrupt_mode = ATTO_GAI_PCIIM_MSI; | |
817 | else | |
818 | gai->pci.interrupt_mode = ATTO_GAI_PCIIM_LEGACY; | |
819 | ||
820 | gai->adap_type = ATTO_GAI_AT_ESASRAID2; | |
821 | ||
822 | if (a->flags2 & AF2_THUNDERLINK) | |
823 | gai->adap_type = ATTO_GAI_AT_TLSASHBA; | |
824 | ||
825 | if (a->flags & AF_DEGRADED_MODE) | |
826 | gai->adap_flags |= ATTO_GAI_AF_DEGRADED; | |
827 | ||
828 | gai->adap_flags |= ATTO_GAI_AF_SPT_SUPP | | |
829 | ATTO_GAI_AF_DEVADDR_SUPP; | |
830 | ||
831 | if (a->pcid->subsystem_device == ATTO_ESAS_R60F | |
832 | || a->pcid->subsystem_device == ATTO_ESAS_R608 | |
833 | || a->pcid->subsystem_device == ATTO_ESAS_R644 | |
834 | || a->pcid->subsystem_device == ATTO_TSSC_3808E) | |
835 | gai->adap_flags |= ATTO_GAI_AF_VIRT_SES; | |
836 | ||
837 | gai->num_ports = ESAS2R_NUM_PHYS; | |
838 | gai->num_phys = ESAS2R_NUM_PHYS; | |
839 | ||
840 | strcpy(gai->firmware_rev, a->fw_rev); | |
841 | strcpy(gai->flash_rev, a->flash_rev); | |
842 | strcpy(gai->model_name_short, esas2r_get_model_name_short(a)); | |
843 | strcpy(gai->model_name, esas2r_get_model_name(a)); | |
844 | ||
845 | gai->num_targets = ESAS2R_MAX_TARGETS; | |
846 | ||
847 | gai->num_busses = 1; | |
848 | gai->num_targsper_bus = gai->num_targets; | |
849 | gai->num_lunsper_targ = 256; | |
850 | ||
851 | if (a->pcid->subsystem_device == ATTO_ESAS_R6F0 | |
852 | || a->pcid->subsystem_device == ATTO_ESAS_R60F) | |
853 | gai->num_connectors = 4; | |
854 | else | |
855 | gai->num_connectors = 2; | |
856 | ||
857 | gai->adap_flags2 |= ATTO_GAI_AF2_ADAP_CTRL_SUPP; | |
858 | ||
859 | gai->num_targets_backend = a->num_targets_backend; | |
860 | ||
861 | gai->tunnel_flags = a->ioctl_tunnel | |
862 | & (ATTO_GAI_TF_MEM_RW | |
863 | | ATTO_GAI_TF_TRACE | |
864 | | ATTO_GAI_TF_SCSI_PASS_THRU | |
865 | | ATTO_GAI_TF_GET_DEV_ADDR | |
866 | | ATTO_GAI_TF_PHY_CTRL | |
867 | | ATTO_GAI_TF_CONN_CTRL | |
868 | | ATTO_GAI_TF_GET_DEV_INFO); | |
869 | break; | |
870 | } | |
871 | ||
872 | case ATTO_FUNC_GET_ADAP_ADDR: | |
873 | { | |
874 | struct atto_hba_get_adapter_address *gaa = | |
875 | &hi->data.get_adap_addr; | |
876 | ||
877 | if (hi->flags & HBAF_TUNNEL) { | |
878 | hi->status = ATTO_STS_UNSUPPORTED; | |
879 | break; | |
880 | } | |
881 | ||
882 | if (hi->version > ATTO_VER_GET_ADAP_ADDR0) { | |
883 | hi->status = ATTO_STS_INV_VERSION; | |
884 | hi->version = ATTO_VER_GET_ADAP_ADDR0; | |
885 | } else if (gaa->addr_type == ATTO_GAA_AT_PORT | |
886 | || gaa->addr_type == ATTO_GAA_AT_NODE) { | |
887 | if (gaa->addr_type == ATTO_GAA_AT_PORT | |
888 | && gaa->port_id >= ESAS2R_NUM_PHYS) { | |
889 | hi->status = ATTO_STS_NOT_APPL; | |
890 | } else { | |
891 | memcpy((u64 *)gaa->address, | |
892 | &a->nvram->sas_addr[0], sizeof(u64)); | |
893 | gaa->addr_len = sizeof(u64); | |
894 | } | |
895 | } else { | |
896 | hi->status = ATTO_STS_INV_PARAM; | |
897 | } | |
898 | ||
899 | break; | |
900 | } | |
901 | ||
902 | case ATTO_FUNC_MEM_RW: | |
903 | { | |
904 | if (hi->flags & HBAF_TUNNEL) { | |
905 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
906 | return true; | |
907 | ||
908 | break; | |
909 | } | |
910 | ||
911 | hi->status = ATTO_STS_UNSUPPORTED; | |
912 | ||
913 | break; | |
914 | } | |
915 | ||
916 | case ATTO_FUNC_TRACE: | |
917 | { | |
918 | struct atto_hba_trace *trc = &hi->data.trace; | |
919 | ||
920 | if (hi->flags & HBAF_TUNNEL) { | |
921 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
922 | return true; | |
923 | ||
924 | break; | |
925 | } | |
926 | ||
927 | if (hi->version > ATTO_VER_TRACE1) { | |
928 | hi->status = ATTO_STS_INV_VERSION; | |
929 | hi->version = ATTO_VER_TRACE1; | |
930 | break; | |
931 | } | |
932 | ||
933 | if (trc->trace_type == ATTO_TRC_TT_FWCOREDUMP | |
934 | && hi->version >= ATTO_VER_TRACE1) { | |
935 | if (trc->trace_func == ATTO_TRC_TF_UPLOAD) { | |
936 | u32 len = hi->data_length; | |
937 | u32 offset = trc->current_offset; | |
938 | u32 total_len = ESAS2R_FWCOREDUMP_SZ; | |
939 | ||
940 | /* Size is zero if a core dump isn't present */ | |
941 | if (!(a->flags2 & AF2_COREDUMP_SAVED)) | |
942 | total_len = 0; | |
943 | ||
944 | if (len > total_len) | |
945 | len = total_len; | |
946 | ||
947 | if (offset >= total_len | |
948 | || offset + len > total_len | |
949 | || len == 0) { | |
950 | hi->status = ATTO_STS_INV_PARAM; | |
951 | break; | |
952 | } | |
953 | ||
954 | memcpy(trc + 1, | |
955 | a->fw_coredump_buff + offset, | |
956 | len); | |
957 | ||
958 | hi->data_length = len; | |
959 | } else if (trc->trace_func == ATTO_TRC_TF_RESET) { | |
960 | memset(a->fw_coredump_buff, 0, | |
961 | ESAS2R_FWCOREDUMP_SZ); | |
962 | ||
963 | esas2r_lock_clear_flags(&a->flags2, | |
964 | AF2_COREDUMP_SAVED); | |
965 | } else if (trc->trace_func != ATTO_TRC_TF_GET_INFO) { | |
966 | hi->status = ATTO_STS_UNSUPPORTED; | |
967 | break; | |
968 | } | |
969 | ||
970 | /* Always return all the info we can. */ | |
971 | trc->trace_mask = 0; | |
972 | trc->current_offset = 0; | |
973 | trc->total_length = ESAS2R_FWCOREDUMP_SZ; | |
974 | ||
975 | /* Return zero length buffer if core dump not present */ | |
976 | if (!(a->flags2 & AF2_COREDUMP_SAVED)) | |
977 | trc->total_length = 0; | |
978 | } else { | |
979 | hi->status = ATTO_STS_UNSUPPORTED; | |
980 | } | |
981 | ||
982 | break; | |
983 | } | |
984 | ||
985 | case ATTO_FUNC_SCSI_PASS_THRU: | |
986 | { | |
987 | struct atto_hba_scsi_pass_thru *spt = &hi->data.scsi_pass_thru; | |
988 | struct scsi_lun lun; | |
989 | ||
990 | memcpy(&lun, spt->lun, sizeof(struct scsi_lun)); | |
991 | ||
992 | if (hi->flags & HBAF_TUNNEL) { | |
993 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
994 | return true; | |
995 | ||
996 | break; | |
997 | } | |
998 | ||
999 | if (hi->version > ATTO_VER_SCSI_PASS_THRU0) { | |
1000 | hi->status = ATTO_STS_INV_VERSION; | |
1001 | hi->version = ATTO_VER_SCSI_PASS_THRU0; | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | if (spt->target_id >= ESAS2R_MAX_TARGETS || !check_lun(lun)) { | |
1006 | hi->status = ATTO_STS_INV_PARAM; | |
1007 | break; | |
1008 | } | |
1009 | ||
1010 | esas2r_sgc_init(sgc, a, rq, NULL); | |
1011 | ||
1012 | sgc->length = hi->data_length; | |
1013 | sgc->cur_offset += offsetof(struct atto_ioctl, data.byte) | |
1014 | + sizeof(struct atto_hba_scsi_pass_thru); | |
1015 | ||
1016 | /* Finish request initialization */ | |
1017 | rq->target_id = (u16)spt->target_id; | |
1018 | rq->vrq->scsi.flags |= cpu_to_le32(spt->lun[1]); | |
1019 | memcpy(rq->vrq->scsi.cdb, spt->cdb, 16); | |
1020 | rq->vrq->scsi.length = cpu_to_le32(hi->data_length); | |
1021 | rq->sense_len = spt->sense_length; | |
1022 | rq->sense_buf = (u8 *)spt->sense_data; | |
1023 | /* NOTE: we ignore spt->timeout */ | |
1024 | ||
1025 | /* | |
1026 | * always usurp the completion callback since the interrupt | |
1027 | * callback mechanism may be used. | |
1028 | */ | |
1029 | ||
1030 | rq->aux_req_cx = hi; | |
1031 | rq->aux_req_cb = rq->comp_cb; | |
1032 | rq->comp_cb = scsi_passthru_comp_cb; | |
1033 | ||
1034 | if (spt->flags & ATTO_SPTF_DATA_IN) { | |
1035 | rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_RDD); | |
1036 | } else if (spt->flags & ATTO_SPTF_DATA_OUT) { | |
1037 | rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_WRD); | |
1038 | } else { | |
1039 | if (sgc->length) { | |
1040 | hi->status = ATTO_STS_INV_PARAM; | |
1041 | break; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | if (spt->flags & ATTO_SPTF_ORDERED_Q) | |
1046 | rq->vrq->scsi.flags |= | |
1047 | cpu_to_le32(FCP_CMND_TA_ORDRD_Q); | |
1048 | else if (spt->flags & ATTO_SPTF_HEAD_OF_Q) | |
1049 | rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_TA_HEAD_Q); | |
1050 | ||
1051 | if (!esas2r_build_sg_list(a, rq, sgc)) { | |
1052 | hi->status = ATTO_STS_OUT_OF_RSRC; | |
1053 | break; | |
1054 | } | |
1055 | ||
1056 | esas2r_start_request(a, rq); | |
1057 | ||
1058 | return true; | |
1059 | } | |
1060 | ||
1061 | case ATTO_FUNC_GET_DEV_ADDR: | |
1062 | { | |
1063 | struct atto_hba_get_device_address *gda = | |
1064 | &hi->data.get_dev_addr; | |
1065 | struct esas2r_target *t; | |
1066 | ||
1067 | if (hi->flags & HBAF_TUNNEL) { | |
1068 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
1069 | return true; | |
1070 | ||
1071 | break; | |
1072 | } | |
1073 | ||
1074 | if (hi->version > ATTO_VER_GET_DEV_ADDR0) { | |
1075 | hi->status = ATTO_STS_INV_VERSION; | |
1076 | hi->version = ATTO_VER_GET_DEV_ADDR0; | |
1077 | break; | |
1078 | } | |
1079 | ||
1080 | if (gda->target_id >= ESAS2R_MAX_TARGETS) { | |
1081 | hi->status = ATTO_STS_INV_PARAM; | |
1082 | break; | |
1083 | } | |
1084 | ||
1085 | t = a->targetdb + (u16)gda->target_id; | |
1086 | ||
1087 | if (t->target_state != TS_PRESENT) { | |
1088 | hi->status = ATTO_STS_FAILED; | |
1089 | } else if (gda->addr_type == ATTO_GDA_AT_PORT) { | |
1090 | if (t->sas_addr == 0) { | |
1091 | hi->status = ATTO_STS_UNSUPPORTED; | |
1092 | } else { | |
1093 | *(u64 *)gda->address = t->sas_addr; | |
1094 | ||
1095 | gda->addr_len = sizeof(u64); | |
1096 | } | |
1097 | } else if (gda->addr_type == ATTO_GDA_AT_NODE) { | |
1098 | hi->status = ATTO_STS_NOT_APPL; | |
1099 | } else { | |
1100 | hi->status = ATTO_STS_INV_PARAM; | |
1101 | } | |
1102 | ||
1103 | /* update the target ID to the next one present. */ | |
1104 | ||
1105 | gda->target_id = | |
1106 | esas2r_targ_db_find_next_present(a, | |
1107 | (u16)gda->target_id); | |
1108 | break; | |
1109 | } | |
1110 | ||
1111 | case ATTO_FUNC_PHY_CTRL: | |
1112 | case ATTO_FUNC_CONN_CTRL: | |
1113 | { | |
1114 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
1115 | return true; | |
1116 | ||
1117 | break; | |
1118 | } | |
1119 | ||
1120 | case ATTO_FUNC_ADAP_CTRL: | |
1121 | { | |
1122 | struct atto_hba_adap_ctrl *ac = &hi->data.adap_ctrl; | |
1123 | ||
1124 | if (hi->flags & HBAF_TUNNEL) { | |
1125 | hi->status = ATTO_STS_UNSUPPORTED; | |
1126 | break; | |
1127 | } | |
1128 | ||
1129 | if (hi->version > ATTO_VER_ADAP_CTRL0) { | |
1130 | hi->status = ATTO_STS_INV_VERSION; | |
1131 | hi->version = ATTO_VER_ADAP_CTRL0; | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | if (ac->adap_func == ATTO_AC_AF_HARD_RST) { | |
1136 | esas2r_reset_adapter(a); | |
1137 | } else if (ac->adap_func != ATTO_AC_AF_GET_STATE) { | |
1138 | hi->status = ATTO_STS_UNSUPPORTED; | |
1139 | break; | |
1140 | } | |
1141 | ||
1142 | if (a->flags & AF_CHPRST_NEEDED) | |
1143 | ac->adap_state = ATTO_AC_AS_RST_SCHED; | |
1144 | else if (a->flags & AF_CHPRST_PENDING) | |
1145 | ac->adap_state = ATTO_AC_AS_RST_IN_PROG; | |
1146 | else if (a->flags & AF_DISC_PENDING) | |
1147 | ac->adap_state = ATTO_AC_AS_RST_DISC; | |
1148 | else if (a->flags & AF_DISABLED) | |
1149 | ac->adap_state = ATTO_AC_AS_DISABLED; | |
1150 | else if (a->flags & AF_DEGRADED_MODE) | |
1151 | ac->adap_state = ATTO_AC_AS_DEGRADED; | |
1152 | else | |
1153 | ac->adap_state = ATTO_AC_AS_OK; | |
1154 | ||
1155 | break; | |
1156 | } | |
1157 | ||
1158 | case ATTO_FUNC_GET_DEV_INFO: | |
1159 | { | |
1160 | struct atto_hba_get_device_info *gdi = &hi->data.get_dev_info; | |
1161 | struct esas2r_target *t; | |
1162 | ||
1163 | if (hi->flags & HBAF_TUNNEL) { | |
1164 | if (hba_ioctl_tunnel(a, hi, rq, sgc)) | |
1165 | return true; | |
1166 | ||
1167 | break; | |
1168 | } | |
1169 | ||
1170 | if (hi->version > ATTO_VER_GET_DEV_INFO0) { | |
1171 | hi->status = ATTO_STS_INV_VERSION; | |
1172 | hi->version = ATTO_VER_GET_DEV_INFO0; | |
1173 | break; | |
1174 | } | |
1175 | ||
1176 | if (gdi->target_id >= ESAS2R_MAX_TARGETS) { | |
1177 | hi->status = ATTO_STS_INV_PARAM; | |
1178 | break; | |
1179 | } | |
1180 | ||
1181 | t = a->targetdb + (u16)gdi->target_id; | |
1182 | ||
1183 | /* update the target ID to the next one present. */ | |
1184 | ||
1185 | gdi->target_id = | |
1186 | esas2r_targ_db_find_next_present(a, | |
1187 | (u16)gdi->target_id); | |
1188 | ||
1189 | if (t->target_state != TS_PRESENT) { | |
1190 | hi->status = ATTO_STS_FAILED; | |
1191 | break; | |
1192 | } | |
1193 | ||
1194 | hi->status = ATTO_STS_UNSUPPORTED; | |
1195 | break; | |
1196 | } | |
1197 | ||
1198 | default: | |
1199 | ||
1200 | hi->status = ATTO_STS_INV_FUNC; | |
1201 | break; | |
1202 | } | |
1203 | ||
1204 | return false; | |
1205 | } | |
1206 | ||
1207 | static void hba_ioctl_done_callback(struct esas2r_adapter *a, | |
1208 | struct esas2r_request *rq, void *context) | |
1209 | { | |
1210 | struct atto_ioctl *ioctl_hba = | |
1211 | (struct atto_ioctl *)esas2r_buffered_ioctl; | |
1212 | ||
1213 | esas2r_debug("hba_ioctl_done_callback %d", a->index); | |
1214 | ||
1215 | if (ioctl_hba->function == ATTO_FUNC_GET_ADAP_INFO) { | |
1216 | struct atto_hba_get_adapter_info *gai = | |
1217 | &ioctl_hba->data.get_adap_info; | |
1218 | ||
1219 | esas2r_debug("ATTO_FUNC_GET_ADAP_INFO"); | |
1220 | ||
1221 | gai->drvr_rev_major = ESAS2R_MAJOR_REV; | |
1222 | gai->drvr_rev_minor = ESAS2R_MINOR_REV; | |
1223 | ||
1224 | strcpy(gai->drvr_rev_ascii, ESAS2R_VERSION_STR); | |
1225 | strcpy(gai->drvr_name, ESAS2R_DRVR_NAME); | |
1226 | ||
1227 | gai->num_busses = 1; | |
1228 | gai->num_targsper_bus = ESAS2R_MAX_ID + 1; | |
1229 | gai->num_lunsper_targ = 1; | |
1230 | } | |
1231 | } | |
1232 | ||
1233 | u8 handle_hba_ioctl(struct esas2r_adapter *a, | |
1234 | struct atto_ioctl *ioctl_hba) | |
1235 | { | |
1236 | struct esas2r_buffered_ioctl bi; | |
1237 | ||
1238 | memset(&bi, 0, sizeof(bi)); | |
1239 | ||
1240 | bi.a = a; | |
1241 | bi.ioctl = ioctl_hba; | |
1242 | bi.length = sizeof(struct atto_ioctl) + ioctl_hba->data_length; | |
1243 | bi.callback = hba_ioctl_callback; | |
1244 | bi.context = NULL; | |
1245 | bi.done_callback = hba_ioctl_done_callback; | |
1246 | bi.done_context = NULL; | |
1247 | bi.offset = 0; | |
1248 | ||
1249 | return handle_buffered_ioctl(&bi); | |
1250 | } | |
1251 | ||
1252 | ||
1253 | int esas2r_write_params(struct esas2r_adapter *a, struct esas2r_request *rq, | |
1254 | struct esas2r_sas_nvram *data) | |
1255 | { | |
1256 | int result = 0; | |
1257 | ||
1258 | a->nvram_command_done = 0; | |
1259 | rq->comp_cb = complete_nvr_req; | |
1260 | ||
1261 | if (esas2r_nvram_write(a, rq, data)) { | |
1262 | /* now wait around for it to complete. */ | |
1263 | while (!a->nvram_command_done) | |
1264 | wait_event_interruptible(a->nvram_waiter, | |
1265 | a->nvram_command_done); | |
1266 | ; | |
1267 | ||
1268 | /* done, check the status. */ | |
1269 | if (rq->req_stat == RS_SUCCESS) | |
1270 | result = 1; | |
1271 | } | |
1272 | return result; | |
1273 | } | |
1274 | ||
1275 | ||
1276 | /* This function only cares about ATTO-specific ioctls (atto_express_ioctl) */ | |
1277 | int esas2r_ioctl_handler(void *hostdata, int cmd, void __user *arg) | |
1278 | { | |
1279 | struct atto_express_ioctl *ioctl = NULL; | |
1280 | struct esas2r_adapter *a; | |
1281 | struct esas2r_request *rq; | |
1282 | u16 code; | |
1283 | int err; | |
1284 | ||
1285 | esas2r_log(ESAS2R_LOG_DEBG, "ioctl (%p, %x, %p)", hostdata, cmd, arg); | |
1286 | ||
1287 | if ((arg == NULL) | |
1288 | || (cmd < EXPRESS_IOCTL_MIN) | |
1289 | || (cmd > EXPRESS_IOCTL_MAX)) | |
1290 | return -ENOTSUPP; | |
1291 | ||
1292 | if (!access_ok(VERIFY_WRITE, arg, sizeof(struct atto_express_ioctl))) { | |
1293 | esas2r_log(ESAS2R_LOG_WARN, | |
1294 | "ioctl_handler access_ok failed for cmd %d, " | |
1295 | "address %p", cmd, | |
1296 | arg); | |
1297 | return -EFAULT; | |
1298 | } | |
1299 | ||
1300 | /* allocate a kernel memory buffer for the IOCTL data */ | |
1301 | ioctl = kzalloc(sizeof(struct atto_express_ioctl), GFP_KERNEL); | |
1302 | if (ioctl == NULL) { | |
1303 | esas2r_log(ESAS2R_LOG_WARN, | |
1304 | "ioctl_handler kzalloc failed for %d bytes", | |
1305 | sizeof(struct atto_express_ioctl)); | |
1306 | return -ENOMEM; | |
1307 | } | |
1308 | ||
1309 | err = __copy_from_user(ioctl, arg, sizeof(struct atto_express_ioctl)); | |
1310 | if (err != 0) { | |
1311 | esas2r_log(ESAS2R_LOG_WARN, | |
1312 | "copy_from_user didn't copy everything (err %d, cmd %d)", | |
1313 | err, | |
1314 | cmd); | |
1315 | kfree(ioctl); | |
1316 | ||
1317 | return -EFAULT; | |
1318 | } | |
1319 | ||
1320 | /* verify the signature */ | |
1321 | ||
1322 | if (memcmp(ioctl->header.signature, | |
1323 | EXPRESS_IOCTL_SIGNATURE, | |
1324 | EXPRESS_IOCTL_SIGNATURE_SIZE) != 0) { | |
1325 | esas2r_log(ESAS2R_LOG_WARN, "invalid signature"); | |
1326 | kfree(ioctl); | |
1327 | ||
1328 | return -ENOTSUPP; | |
1329 | } | |
1330 | ||
1331 | /* assume success */ | |
1332 | ||
1333 | ioctl->header.return_code = IOCTL_SUCCESS; | |
1334 | err = 0; | |
1335 | ||
1336 | /* | |
1337 | * handle EXPRESS_IOCTL_GET_CHANNELS | |
1338 | * without paying attention to channel | |
1339 | */ | |
1340 | ||
1341 | if (cmd == EXPRESS_IOCTL_GET_CHANNELS) { | |
1342 | int i = 0, k = 0; | |
1343 | ||
1344 | ioctl->data.chanlist.num_channels = 0; | |
1345 | ||
1346 | while (i < MAX_ADAPTERS) { | |
1347 | if (esas2r_adapters[i]) { | |
1348 | ioctl->data.chanlist.num_channels++; | |
1349 | ioctl->data.chanlist.channel[k] = i; | |
1350 | k++; | |
1351 | } | |
1352 | i++; | |
1353 | } | |
1354 | ||
1355 | goto ioctl_done; | |
1356 | } | |
1357 | ||
1358 | /* get the channel */ | |
1359 | ||
1360 | if (ioctl->header.channel == 0xFF) { | |
1361 | a = (struct esas2r_adapter *)hostdata; | |
1362 | } else { | |
1363 | a = esas2r_adapters[ioctl->header.channel]; | |
1364 | if (ioctl->header.channel >= MAX_ADAPTERS || (a == NULL)) { | |
1365 | ioctl->header.return_code = IOCTL_BAD_CHANNEL; | |
1366 | esas2r_log(ESAS2R_LOG_WARN, "bad channel value"); | |
1367 | kfree(ioctl); | |
1368 | ||
1369 | return -ENOTSUPP; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | switch (cmd) { | |
1374 | case EXPRESS_IOCTL_RW_FIRMWARE: | |
1375 | ||
1376 | if (ioctl->data.fwrw.img_type == FW_IMG_FM_API) { | |
1377 | err = esas2r_write_fw(a, | |
1378 | (char *)ioctl->data.fwrw.image, | |
1379 | 0, | |
1380 | sizeof(struct | |
1381 | atto_express_ioctl)); | |
1382 | ||
1383 | if (err >= 0) { | |
1384 | err = esas2r_read_fw(a, | |
1385 | (char *)ioctl->data.fwrw. | |
1386 | image, | |
1387 | 0, | |
1388 | sizeof(struct | |
1389 | atto_express_ioctl)); | |
1390 | } | |
1391 | } else if (ioctl->data.fwrw.img_type == FW_IMG_FS_API) { | |
1392 | err = esas2r_write_fs(a, | |
1393 | (char *)ioctl->data.fwrw.image, | |
1394 | 0, | |
1395 | sizeof(struct | |
1396 | atto_express_ioctl)); | |
1397 | ||
1398 | if (err >= 0) { | |
1399 | err = esas2r_read_fs(a, | |
1400 | (char *)ioctl->data.fwrw. | |
1401 | image, | |
1402 | 0, | |
1403 | sizeof(struct | |
1404 | atto_express_ioctl)); | |
1405 | } | |
1406 | } else { | |
1407 | ioctl->header.return_code = IOCTL_BAD_FLASH_IMGTYPE; | |
1408 | } | |
1409 | ||
1410 | break; | |
1411 | ||
1412 | case EXPRESS_IOCTL_READ_PARAMS: | |
1413 | ||
1414 | memcpy(ioctl->data.prw.data_buffer, a->nvram, | |
1415 | sizeof(struct esas2r_sas_nvram)); | |
1416 | ioctl->data.prw.code = 1; | |
1417 | break; | |
1418 | ||
1419 | case EXPRESS_IOCTL_WRITE_PARAMS: | |
1420 | ||
1421 | rq = esas2r_alloc_request(a); | |
1422 | if (rq == NULL) { | |
1423 | up(&a->nvram_semaphore); | |
1424 | ioctl->data.prw.code = 0; | |
1425 | break; | |
1426 | } | |
1427 | ||
1428 | code = esas2r_write_params(a, rq, | |
1429 | (struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer); | |
1430 | ioctl->data.prw.code = code; | |
1431 | ||
1432 | esas2r_free_request(a, rq); | |
1433 | ||
1434 | break; | |
1435 | ||
1436 | case EXPRESS_IOCTL_DEFAULT_PARAMS: | |
1437 | ||
1438 | esas2r_nvram_get_defaults(a, | |
1439 | (struct esas2r_sas_nvram *)ioctl->data.prw.data_buffer); | |
1440 | ioctl->data.prw.code = 1; | |
1441 | break; | |
1442 | ||
1443 | case EXPRESS_IOCTL_CHAN_INFO: | |
1444 | ||
1445 | ioctl->data.chaninfo.major_rev = ESAS2R_MAJOR_REV; | |
1446 | ioctl->data.chaninfo.minor_rev = ESAS2R_MINOR_REV; | |
1447 | ioctl->data.chaninfo.IRQ = a->pcid->irq; | |
1448 | ioctl->data.chaninfo.device_id = a->pcid->device; | |
1449 | ioctl->data.chaninfo.vendor_id = a->pcid->vendor; | |
1450 | ioctl->data.chaninfo.ven_dev_id = a->pcid->subsystem_device; | |
1451 | ioctl->data.chaninfo.revision_id = a->pcid->revision; | |
1452 | ioctl->data.chaninfo.pci_bus = a->pcid->bus->number; | |
1453 | ioctl->data.chaninfo.pci_dev_func = a->pcid->devfn; | |
1454 | ioctl->data.chaninfo.core_rev = 0; | |
1455 | ioctl->data.chaninfo.host_no = a->host->host_no; | |
1456 | ioctl->data.chaninfo.hbaapi_rev = 0; | |
1457 | break; | |
1458 | ||
1459 | case EXPRESS_IOCTL_SMP: | |
1460 | ioctl->header.return_code = handle_smp_ioctl(a, | |
1461 | &ioctl->data. | |
1462 | ioctl_smp); | |
1463 | break; | |
1464 | ||
1465 | case EXPRESS_CSMI: | |
1466 | ioctl->header.return_code = | |
1467 | handle_csmi_ioctl(a, &ioctl->data.csmi); | |
1468 | break; | |
1469 | ||
1470 | case EXPRESS_IOCTL_HBA: | |
1471 | ioctl->header.return_code = handle_hba_ioctl(a, | |
1472 | &ioctl->data. | |
1473 | ioctl_hba); | |
1474 | break; | |
1475 | ||
1476 | case EXPRESS_IOCTL_VDA: | |
1477 | err = esas2r_write_vda(a, | |
1478 | (char *)&ioctl->data.ioctl_vda, | |
1479 | 0, | |
1480 | sizeof(struct atto_ioctl_vda) + | |
1481 | ioctl->data.ioctl_vda.data_length); | |
1482 | ||
1483 | if (err >= 0) { | |
1484 | err = esas2r_read_vda(a, | |
1485 | (char *)&ioctl->data.ioctl_vda, | |
1486 | 0, | |
1487 | sizeof(struct atto_ioctl_vda) + | |
1488 | ioctl->data.ioctl_vda.data_length); | |
1489 | } | |
1490 | ||
1491 | ||
1492 | ||
1493 | ||
1494 | break; | |
1495 | ||
1496 | case EXPRESS_IOCTL_GET_MOD_INFO: | |
1497 | ||
1498 | ioctl->data.modinfo.adapter = a; | |
1499 | ioctl->data.modinfo.pci_dev = a->pcid; | |
1500 | ioctl->data.modinfo.scsi_host = a->host; | |
1501 | ioctl->data.modinfo.host_no = a->host->host_no; | |
1502 | ||
1503 | break; | |
1504 | ||
1505 | default: | |
1506 | esas2r_debug("esas2r_ioctl invalid cmd %p!", cmd); | |
1507 | ioctl->header.return_code = IOCTL_ERR_INVCMD; | |
1508 | } | |
1509 | ||
1510 | ioctl_done: | |
1511 | ||
1512 | if (err < 0) { | |
1513 | esas2r_log(ESAS2R_LOG_WARN, "err %d on ioctl cmd %d", err, | |
1514 | cmd); | |
1515 | ||
1516 | switch (err) { | |
1517 | case -ENOMEM: | |
1518 | case -EBUSY: | |
1519 | ioctl->header.return_code = IOCTL_OUT_OF_RESOURCES; | |
1520 | break; | |
1521 | ||
1522 | case -ENOSYS: | |
1523 | case -EINVAL: | |
1524 | ioctl->header.return_code = IOCTL_INVALID_PARAM; | |
1525 | break; | |
1526 | } | |
1527 | ||
1528 | ioctl->header.return_code = IOCTL_GENERAL_ERROR; | |
1529 | } | |
1530 | ||
1531 | /* Always copy the buffer back, if only to pick up the status */ | |
1532 | err = __copy_to_user(arg, ioctl, sizeof(struct atto_express_ioctl)); | |
1533 | if (err != 0) { | |
1534 | esas2r_log(ESAS2R_LOG_WARN, | |
1535 | "ioctl_handler copy_to_user didn't copy " | |
1536 | "everything (err %d, cmd %d)", err, | |
1537 | cmd); | |
1538 | kfree(ioctl); | |
1539 | ||
1540 | return -EFAULT; | |
1541 | } | |
1542 | ||
1543 | kfree(ioctl); | |
1544 | ||
1545 | return 0; | |
1546 | } | |
1547 | ||
1548 | int esas2r_ioctl(struct scsi_device *sd, int cmd, void __user *arg) | |
1549 | { | |
1550 | return esas2r_ioctl_handler(sd->host->hostdata, cmd, arg); | |
1551 | } | |
1552 | ||
1553 | static void free_fw_buffers(struct esas2r_adapter *a) | |
1554 | { | |
1555 | if (a->firmware.data) { | |
1556 | dma_free_coherent(&a->pcid->dev, | |
1557 | (size_t)a->firmware.orig_len, | |
1558 | a->firmware.data, | |
1559 | (dma_addr_t)a->firmware.phys); | |
1560 | ||
1561 | a->firmware.data = NULL; | |
1562 | } | |
1563 | } | |
1564 | ||
1565 | static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length) | |
1566 | { | |
1567 | free_fw_buffers(a); | |
1568 | ||
1569 | a->firmware.orig_len = length; | |
1570 | ||
1571 | a->firmware.data = (u8 *)dma_alloc_coherent(&a->pcid->dev, | |
1572 | (size_t)length, | |
1573 | (dma_addr_t *)&a->firmware. | |
1574 | phys, | |
1575 | GFP_KERNEL); | |
1576 | ||
1577 | if (!a->firmware.data) { | |
1578 | esas2r_debug("buffer alloc failed!"); | |
1579 | return 0; | |
1580 | } | |
1581 | ||
1582 | return 1; | |
1583 | } | |
1584 | ||
1585 | /* Handle a call to read firmware. */ | |
1586 | int esas2r_read_fw(struct esas2r_adapter *a, char *buf, long off, int count) | |
1587 | { | |
1588 | esas2r_trace_enter(); | |
1589 | /* if the cached header is a status, simply copy it over and return. */ | |
1590 | if (a->firmware.state == FW_STATUS_ST) { | |
1591 | int size = min_t(int, count, sizeof(a->firmware.header)); | |
1592 | esas2r_trace_exit(); | |
1593 | memcpy(buf, &a->firmware.header, size); | |
1594 | esas2r_debug("esas2r_read_fw: STATUS size %d", size); | |
1595 | return size; | |
1596 | } | |
1597 | ||
1598 | /* | |
1599 | * if the cached header is a command, do it if at | |
1600 | * offset 0, otherwise copy the pieces. | |
1601 | */ | |
1602 | ||
1603 | if (a->firmware.state == FW_COMMAND_ST) { | |
1604 | u32 length = a->firmware.header.length; | |
1605 | esas2r_trace_exit(); | |
1606 | ||
1607 | esas2r_debug("esas2r_read_fw: COMMAND length %d off %d", | |
1608 | length, | |
1609 | off); | |
1610 | ||
1611 | if (off == 0) { | |
1612 | if (a->firmware.header.action == FI_ACT_UP) { | |
1613 | if (!allocate_fw_buffers(a, length)) | |
1614 | return -ENOMEM; | |
1615 | ||
1616 | ||
1617 | /* copy header over */ | |
1618 | ||
1619 | memcpy(a->firmware.data, | |
1620 | &a->firmware.header, | |
1621 | sizeof(a->firmware.header)); | |
1622 | ||
1623 | do_fm_api(a, | |
1624 | (struct esas2r_flash_img *)a->firmware.data); | |
1625 | } else if (a->firmware.header.action == FI_ACT_UPSZ) { | |
1626 | int size = | |
1627 | min((int)count, | |
1628 | (int)sizeof(a->firmware.header)); | |
1629 | do_fm_api(a, &a->firmware.header); | |
1630 | memcpy(buf, &a->firmware.header, size); | |
1631 | esas2r_debug("FI_ACT_UPSZ size %d", size); | |
1632 | return size; | |
1633 | } else { | |
1634 | esas2r_debug("invalid action %d", | |
1635 | a->firmware.header.action); | |
1636 | return -ENOSYS; | |
1637 | } | |
1638 | } | |
1639 | ||
1640 | if (count + off > length) | |
1641 | count = length - off; | |
1642 | ||
1643 | if (count < 0) | |
1644 | return 0; | |
1645 | ||
1646 | if (!a->firmware.data) { | |
1647 | esas2r_debug( | |
1648 | "read: nonzero offset but no buffer available!"); | |
1649 | return -ENOMEM; | |
1650 | } | |
1651 | ||
1652 | esas2r_debug("esas2r_read_fw: off %d count %d length %d ", off, | |
1653 | count, | |
1654 | length); | |
1655 | ||
1656 | memcpy(buf, &a->firmware.data[off], count); | |
1657 | ||
1658 | /* when done, release the buffer */ | |
1659 | ||
1660 | if (length <= off + count) { | |
1661 | esas2r_debug("esas2r_read_fw: freeing buffer!"); | |
1662 | ||
1663 | free_fw_buffers(a); | |
1664 | } | |
1665 | ||
1666 | return count; | |
1667 | } | |
1668 | ||
1669 | esas2r_trace_exit(); | |
1670 | esas2r_debug("esas2r_read_fw: invalid firmware state %d", | |
1671 | a->firmware.state); | |
1672 | ||
1673 | return -EINVAL; | |
1674 | } | |
1675 | ||
1676 | /* Handle a call to write firmware. */ | |
1677 | int esas2r_write_fw(struct esas2r_adapter *a, const char *buf, long off, | |
1678 | int count) | |
1679 | { | |
1680 | u32 length; | |
1681 | ||
1682 | if (off == 0) { | |
1683 | struct esas2r_flash_img *header = | |
1684 | (struct esas2r_flash_img *)buf; | |
1685 | ||
1686 | /* assume version 0 flash image */ | |
1687 | ||
1688 | int min_size = sizeof(struct esas2r_flash_img_v0); | |
1689 | ||
1690 | a->firmware.state = FW_INVALID_ST; | |
1691 | ||
1692 | /* validate the version field first */ | |
1693 | ||
1694 | if (count < 4 | |
1695 | || header->fi_version > FI_VERSION_1) { | |
1696 | esas2r_debug( | |
1697 | "esas2r_write_fw: short header or invalid version"); | |
1698 | return -EINVAL; | |
1699 | } | |
1700 | ||
1701 | /* See if its a version 1 flash image */ | |
1702 | ||
1703 | if (header->fi_version == FI_VERSION_1) | |
1704 | min_size = sizeof(struct esas2r_flash_img); | |
1705 | ||
1706 | /* If this is the start, the header must be full and valid. */ | |
1707 | if (count < min_size) { | |
1708 | esas2r_debug("esas2r_write_fw: short header, aborting"); | |
1709 | return -EINVAL; | |
1710 | } | |
1711 | ||
1712 | /* Make sure the size is reasonable. */ | |
1713 | length = header->length; | |
1714 | ||
1715 | if (length > 1024 * 1024) { | |
1716 | esas2r_debug( | |
1717 | "esas2r_write_fw: hosed, length %d fi_version %d", | |
1718 | length, header->fi_version); | |
1719 | return -EINVAL; | |
1720 | } | |
1721 | ||
1722 | /* | |
1723 | * If this is a write command, allocate memory because | |
1724 | * we have to cache everything. otherwise, just cache | |
1725 | * the header, because the read op will do the command. | |
1726 | */ | |
1727 | ||
1728 | if (header->action == FI_ACT_DOWN) { | |
1729 | if (!allocate_fw_buffers(a, length)) | |
1730 | return -ENOMEM; | |
1731 | ||
1732 | /* | |
1733 | * Store the command, so there is context on subsequent | |
1734 | * calls. | |
1735 | */ | |
1736 | memcpy(&a->firmware.header, | |
1737 | buf, | |
1738 | sizeof(*header)); | |
1739 | } else if (header->action == FI_ACT_UP | |
1740 | || header->action == FI_ACT_UPSZ) { | |
1741 | /* Save the command, result will be picked up on read */ | |
1742 | memcpy(&a->firmware.header, | |
1743 | buf, | |
1744 | sizeof(*header)); | |
1745 | ||
1746 | a->firmware.state = FW_COMMAND_ST; | |
1747 | ||
1748 | esas2r_debug( | |
1749 | "esas2r_write_fw: COMMAND, count %d, action %d ", | |
1750 | count, header->action); | |
1751 | ||
1752 | /* | |
1753 | * Pretend we took the whole buffer, | |
1754 | * so we don't get bothered again. | |
1755 | */ | |
1756 | ||
1757 | return count; | |
1758 | } else { | |
1759 | esas2r_debug("esas2r_write_fw: invalid action %d ", | |
1760 | a->firmware.header.action); | |
1761 | return -ENOSYS; | |
1762 | } | |
1763 | } else { | |
1764 | length = a->firmware.header.length; | |
1765 | } | |
1766 | ||
1767 | /* | |
1768 | * We only get here on a download command, regardless of offset. | |
1769 | * the chunks written by the system need to be cached, and when | |
1770 | * the final one arrives, issue the fmapi command. | |
1771 | */ | |
1772 | ||
1773 | if (off + count > length) | |
1774 | count = length - off; | |
1775 | ||
1776 | if (count > 0) { | |
1777 | esas2r_debug("esas2r_write_fw: off %d count %d length %d", off, | |
1778 | count, | |
1779 | length); | |
1780 | ||
1781 | /* | |
1782 | * On a full upload, the system tries sending the whole buffer. | |
1783 | * there's nothing to do with it, so just drop it here, before | |
1784 | * trying to copy over into unallocated memory! | |
1785 | */ | |
1786 | if (a->firmware.header.action == FI_ACT_UP) | |
1787 | return count; | |
1788 | ||
1789 | if (!a->firmware.data) { | |
1790 | esas2r_debug( | |
1791 | "write: nonzero offset but no buffer available!"); | |
1792 | return -ENOMEM; | |
1793 | } | |
1794 | ||
1795 | memcpy(&a->firmware.data[off], buf, count); | |
1796 | ||
1797 | if (length == off + count) { | |
1798 | do_fm_api(a, | |
1799 | (struct esas2r_flash_img *)a->firmware.data); | |
1800 | ||
1801 | /* | |
1802 | * Now copy the header result to be picked up by the | |
1803 | * next read | |
1804 | */ | |
1805 | memcpy(&a->firmware.header, | |
1806 | a->firmware.data, | |
1807 | sizeof(a->firmware.header)); | |
1808 | ||
1809 | a->firmware.state = FW_STATUS_ST; | |
1810 | ||
1811 | esas2r_debug("write completed"); | |
1812 | ||
1813 | /* | |
1814 | * Since the system has the data buffered, the only way | |
1815 | * this can leak is if a root user writes a program | |
1816 | * that writes a shorter buffer than it claims, and the | |
1817 | * copyin fails. | |
1818 | */ | |
1819 | free_fw_buffers(a); | |
1820 | } | |
1821 | } | |
1822 | ||
1823 | return count; | |
1824 | } | |
1825 | ||
1826 | /* Callback for the completion of a VDA request. */ | |
1827 | static void vda_complete_req(struct esas2r_adapter *a, | |
1828 | struct esas2r_request *rq) | |
1829 | { | |
1830 | a->vda_command_done = 1; | |
1831 | wake_up_interruptible(&a->vda_waiter); | |
1832 | } | |
1833 | ||
1834 | /* Scatter/gather callback for VDA requests */ | |
1835 | static u32 get_physaddr_vda(struct esas2r_sg_context *sgc, u64 *addr) | |
1836 | { | |
1837 | struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter; | |
1838 | int offset = (u8 *)sgc->cur_offset - (u8 *)a->vda_buffer; | |
1839 | ||
1840 | (*addr) = a->ppvda_buffer + offset; | |
1841 | return VDA_MAX_BUFFER_SIZE - offset; | |
1842 | } | |
1843 | ||
1844 | /* Handle a call to read a VDA command. */ | |
1845 | int esas2r_read_vda(struct esas2r_adapter *a, char *buf, long off, int count) | |
1846 | { | |
1847 | if (!a->vda_buffer) | |
1848 | return -ENOMEM; | |
1849 | ||
1850 | if (off == 0) { | |
1851 | struct esas2r_request *rq; | |
1852 | struct atto_ioctl_vda *vi = | |
1853 | (struct atto_ioctl_vda *)a->vda_buffer; | |
1854 | struct esas2r_sg_context sgc; | |
1855 | bool wait_for_completion; | |
1856 | ||
1857 | /* | |
1858 | * Presumeably, someone has already written to the vda_buffer, | |
1859 | * and now they are reading the node the response, so now we | |
1860 | * will actually issue the request to the chip and reply. | |
1861 | */ | |
1862 | ||
1863 | /* allocate a request */ | |
1864 | rq = esas2r_alloc_request(a); | |
1865 | if (rq == NULL) { | |
1866 | esas2r_debug("esas2r_read_vda: out of requestss"); | |
1867 | return -EBUSY; | |
1868 | } | |
1869 | ||
1870 | rq->comp_cb = vda_complete_req; | |
1871 | ||
1872 | sgc.first_req = rq; | |
1873 | sgc.adapter = a; | |
1874 | sgc.cur_offset = a->vda_buffer + VDA_BUFFER_HEADER_SZ; | |
1875 | sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_vda; | |
1876 | ||
1877 | a->vda_command_done = 0; | |
1878 | ||
1879 | wait_for_completion = | |
1880 | esas2r_process_vda_ioctl(a, vi, rq, &sgc); | |
1881 | ||
1882 | if (wait_for_completion) { | |
1883 | /* now wait around for it to complete. */ | |
1884 | ||
1885 | while (!a->vda_command_done) | |
1886 | wait_event_interruptible(a->vda_waiter, | |
1887 | a->vda_command_done); | |
1888 | } | |
1889 | ||
1890 | esas2r_free_request(a, (struct esas2r_request *)rq); | |
1891 | } | |
1892 | ||
1893 | if (off > VDA_MAX_BUFFER_SIZE) | |
1894 | return 0; | |
1895 | ||
1896 | if (count + off > VDA_MAX_BUFFER_SIZE) | |
1897 | count = VDA_MAX_BUFFER_SIZE - off; | |
1898 | ||
1899 | if (count < 0) | |
1900 | return 0; | |
1901 | ||
1902 | memcpy(buf, a->vda_buffer + off, count); | |
1903 | ||
1904 | return count; | |
1905 | } | |
1906 | ||
1907 | /* Handle a call to write a VDA command. */ | |
1908 | int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off, | |
1909 | int count) | |
1910 | { | |
1911 | /* | |
1912 | * allocate memory for it, if not already done. once allocated, | |
1913 | * we will keep it around until the driver is unloaded. | |
1914 | */ | |
1915 | ||
1916 | if (!a->vda_buffer) { | |
1917 | dma_addr_t dma_addr; | |
1918 | a->vda_buffer = (u8 *)dma_alloc_coherent(&a->pcid->dev, | |
1919 | (size_t) | |
1920 | VDA_MAX_BUFFER_SIZE, | |
1921 | &dma_addr, | |
1922 | GFP_KERNEL); | |
1923 | ||
1924 | a->ppvda_buffer = dma_addr; | |
1925 | } | |
1926 | ||
1927 | if (!a->vda_buffer) | |
1928 | return -ENOMEM; | |
1929 | ||
1930 | if (off > VDA_MAX_BUFFER_SIZE) | |
1931 | return 0; | |
1932 | ||
1933 | if (count + off > VDA_MAX_BUFFER_SIZE) | |
1934 | count = VDA_MAX_BUFFER_SIZE - off; | |
1935 | ||
1936 | if (count < 1) | |
1937 | return 0; | |
1938 | ||
1939 | memcpy(a->vda_buffer + off, buf, count); | |
1940 | ||
1941 | return count; | |
1942 | } | |
1943 | ||
1944 | /* Callback for the completion of an FS_API request.*/ | |
1945 | static void fs_api_complete_req(struct esas2r_adapter *a, | |
1946 | struct esas2r_request *rq) | |
1947 | { | |
1948 | a->fs_api_command_done = 1; | |
1949 | ||
1950 | wake_up_interruptible(&a->fs_api_waiter); | |
1951 | } | |
1952 | ||
1953 | /* Scatter/gather callback for VDA requests */ | |
1954 | static u32 get_physaddr_fs_api(struct esas2r_sg_context *sgc, u64 *addr) | |
1955 | { | |
1956 | struct esas2r_adapter *a = (struct esas2r_adapter *)sgc->adapter; | |
1957 | struct esas2r_ioctl_fs *fs = | |
1958 | (struct esas2r_ioctl_fs *)a->fs_api_buffer; | |
1959 | u32 offset = (u8 *)sgc->cur_offset - (u8 *)fs; | |
1960 | ||
1961 | (*addr) = a->ppfs_api_buffer + offset; | |
1962 | ||
1963 | return a->fs_api_buffer_size - offset; | |
1964 | } | |
1965 | ||
1966 | /* Handle a call to read firmware via FS_API. */ | |
1967 | int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count) | |
1968 | { | |
1969 | if (!a->fs_api_buffer) | |
1970 | return -ENOMEM; | |
1971 | ||
1972 | if (off == 0) { | |
1973 | struct esas2r_request *rq; | |
1974 | struct esas2r_sg_context sgc; | |
1975 | struct esas2r_ioctl_fs *fs = | |
1976 | (struct esas2r_ioctl_fs *)a->fs_api_buffer; | |
1977 | ||
1978 | /* If another flash request is already in progress, return. */ | |
1979 | if (down_interruptible(&a->fs_api_semaphore)) { | |
1980 | busy: | |
1981 | fs->status = ATTO_STS_OUT_OF_RSRC; | |
1982 | return -EBUSY; | |
1983 | } | |
1984 | ||
1985 | /* | |
1986 | * Presumeably, someone has already written to the | |
1987 | * fs_api_buffer, and now they are reading the node the | |
1988 | * response, so now we will actually issue the request to the | |
1989 | * chip and reply. Allocate a request | |
1990 | */ | |
1991 | ||
1992 | rq = esas2r_alloc_request(a); | |
1993 | if (rq == NULL) { | |
1994 | esas2r_debug("esas2r_read_fs: out of requests"); | |
1995 | up(&a->fs_api_semaphore); | |
1996 | goto busy; | |
1997 | } | |
1998 | ||
1999 | rq->comp_cb = fs_api_complete_req; | |
2000 | ||
2001 | /* Set up the SGCONTEXT for to build the s/g table */ | |
2002 | ||
2003 | sgc.cur_offset = fs->data; | |
2004 | sgc.get_phys_addr = (PGETPHYSADDR)get_physaddr_fs_api; | |
2005 | ||
2006 | a->fs_api_command_done = 0; | |
2007 | ||
2008 | if (!esas2r_process_fs_ioctl(a, fs, rq, &sgc)) { | |
2009 | if (fs->status == ATTO_STS_OUT_OF_RSRC) | |
2010 | count = -EBUSY; | |
2011 | ||
2012 | goto dont_wait; | |
2013 | } | |
2014 | ||
2015 | /* Now wait around for it to complete. */ | |
2016 | ||
2017 | while (!a->fs_api_command_done) | |
2018 | wait_event_interruptible(a->fs_api_waiter, | |
2019 | a->fs_api_command_done); | |
2020 | ; | |
2021 | dont_wait: | |
2022 | /* Free the request and keep going */ | |
2023 | up(&a->fs_api_semaphore); | |
2024 | esas2r_free_request(a, (struct esas2r_request *)rq); | |
2025 | ||
2026 | /* Pick up possible error code from above */ | |
2027 | if (count < 0) | |
2028 | return count; | |
2029 | } | |
2030 | ||
2031 | if (off > a->fs_api_buffer_size) | |
2032 | return 0; | |
2033 | ||
2034 | if (count + off > a->fs_api_buffer_size) | |
2035 | count = a->fs_api_buffer_size - off; | |
2036 | ||
2037 | if (count < 0) | |
2038 | return 0; | |
2039 | ||
2040 | memcpy(buf, a->fs_api_buffer + off, count); | |
2041 | ||
2042 | return count; | |
2043 | } | |
2044 | ||
2045 | /* Handle a call to write firmware via FS_API. */ | |
2046 | int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off, | |
2047 | int count) | |
2048 | { | |
2049 | if (off == 0) { | |
2050 | struct esas2r_ioctl_fs *fs = (struct esas2r_ioctl_fs *)buf; | |
2051 | u32 length = fs->command.length + offsetof( | |
2052 | struct esas2r_ioctl_fs, | |
2053 | data); | |
2054 | ||
2055 | /* | |
2056 | * Special case, for BEGIN commands, the length field | |
2057 | * is lying to us, so just get enough for the header. | |
2058 | */ | |
2059 | ||
2060 | if (fs->command.command == ESAS2R_FS_CMD_BEGINW) | |
2061 | length = offsetof(struct esas2r_ioctl_fs, data); | |
2062 | ||
2063 | /* | |
2064 | * Beginning a command. We assume we'll get at least | |
2065 | * enough in the first write so we can look at the | |
2066 | * header and see how much we need to alloc. | |
2067 | */ | |
2068 | ||
2069 | if (count < offsetof(struct esas2r_ioctl_fs, data)) | |
2070 | return -EINVAL; | |
2071 | ||
2072 | /* Allocate a buffer or use the existing buffer. */ | |
2073 | if (a->fs_api_buffer) { | |
2074 | if (a->fs_api_buffer_size < length) { | |
2075 | /* Free too-small buffer and get a new one */ | |
2076 | dma_free_coherent(&a->pcid->dev, | |
2077 | (size_t)a->fs_api_buffer_size, | |
2078 | a->fs_api_buffer, | |
2079 | (dma_addr_t)a->ppfs_api_buffer); | |
2080 | ||
2081 | goto re_allocate_buffer; | |
2082 | } | |
2083 | } else { | |
2084 | re_allocate_buffer: | |
2085 | a->fs_api_buffer_size = length; | |
2086 | ||
2087 | a->fs_api_buffer = (u8 *)dma_alloc_coherent( | |
2088 | &a->pcid->dev, | |
2089 | (size_t)a->fs_api_buffer_size, | |
2090 | (dma_addr_t *)&a->ppfs_api_buffer, | |
2091 | GFP_KERNEL); | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | if (!a->fs_api_buffer) | |
2096 | return -ENOMEM; | |
2097 | ||
2098 | if (off > a->fs_api_buffer_size) | |
2099 | return 0; | |
2100 | ||
2101 | if (count + off > a->fs_api_buffer_size) | |
2102 | count = a->fs_api_buffer_size - off; | |
2103 | ||
2104 | if (count < 1) | |
2105 | return 0; | |
2106 | ||
2107 | memcpy(a->fs_api_buffer + off, buf, count); | |
2108 | ||
2109 | return count; | |
2110 | } |