xref: /freebsd/sys/dev/ocs_fc/ocs_ioctl.c (revision e1e636193db45630c7881246d25902e57c43d24e)
1 /*-
2  * Copyright (c) 2017 Broadcom. All rights reserved.
3  * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  *    this list of conditions and the following disclaimer in the documentation
13  *    and/or other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include "ocs.h"
33 #include "ocs_utils.h"
34 
35 #include <sys/conf.h>
36 #include <sys/sysctl.h>
37 #include <sys/ioccom.h>
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/linker.h>
41 #include <sys/firmware.h>
42 
43 static d_open_t		ocs_open;
44 static d_close_t	ocs_close;
45 static d_ioctl_t	ocs_ioctl;
46 
47 static struct cdevsw ocs_cdevsw = {
48 	.d_version =	D_VERSION,
49 	.d_open =	ocs_open,
50 	.d_close =	ocs_close,
51 	.d_ioctl =	ocs_ioctl,
52 	.d_name =	"ocs_fc"
53 };
54 
55 int
56 ocs_firmware_write(ocs_t *ocs, const uint8_t *buf, size_t buf_len, uint8_t *change_status);
57 
58 static int
59 ocs_open(struct cdev *cdev, int flags, int fmt, struct thread *td)
60 {
61 	return 0;
62 }
63 
64 static int
65 ocs_close(struct cdev *cdev, int flag, int fmt, struct thread *td)
66 {
67 	return 0;
68 }
69 
70 static int32_t
71 __ocs_ioctl_mbox_cb(ocs_hw_t *hw, int32_t status, uint8_t *mqe, void *arg)
72 {
73 	struct ocs_softc *ocs = arg;
74 
75 	/* wait for the ioctl to sleep before calling wakeup */
76 	mtx_lock(&ocs->dbg_lock);
77 
78 	mtx_unlock(&ocs->dbg_lock);
79 
80 	wakeup(arg);
81 
82 	return 0;
83 }
84 
85 static int
86 ocs_process_sli_config (ocs_t *ocs, ocs_ioctl_elxu_mbox_t *mcmd, ocs_dma_t *dma)
87 {
88 	sli4_cmd_sli_config_t *sli_config = (sli4_cmd_sli_config_t *)mcmd->payload;
89 	int error;
90 
91 	if (sli_config->emb) {
92 		sli4_req_hdr_t	*req = (sli4_req_hdr_t *)sli_config->payload.embed;
93 
94 		switch (req->opcode) {
95 		case SLI4_OPC_COMMON_READ_OBJECT:
96 			if (mcmd->out_bytes) {
97 				sli4_req_common_read_object_t *rdobj =
98 					(sli4_req_common_read_object_t *)sli_config->payload.embed;
99 
100 				if (ocs_dma_alloc(ocs, dma, mcmd->out_bytes, 4096)) {
101 					device_printf(ocs->dev, "%s: COMMON_READ_OBJECT - %lld allocation failed\n",
102 							__func__, (unsigned long long)mcmd->out_bytes);
103 					return ENXIO;
104 				}
105 
106 				memset(dma->virt, 0, mcmd->out_bytes);
107 
108 				rdobj->host_buffer_descriptor[0].bde_type = SLI4_BDE_TYPE_BDE_64;
109 				rdobj->host_buffer_descriptor[0].buffer_length = mcmd->out_bytes;
110 				rdobj->host_buffer_descriptor[0].u.data.buffer_address_low = ocs_addr32_lo(dma->phys);
111 				rdobj->host_buffer_descriptor[0].u.data.buffer_address_high = ocs_addr32_hi(dma->phys);
112 			}
113 			break;
114 		case SLI4_OPC_COMMON_WRITE_OBJECT:
115 		{
116 			sli4_req_common_write_object_t *wrobj =
117 				(sli4_req_common_write_object_t *)sli_config->payload.embed;
118 
119 			if (ocs_dma_alloc(ocs, dma, wrobj->desired_write_length, 4096)) {
120 				device_printf(ocs->dev, "%s: COMMON_WRITE_OBJECT - %d allocation failed\n",
121 						__func__, wrobj->desired_write_length);
122 				return ENXIO;
123 			}
124 			/* setup the descriptor */
125 			wrobj->host_buffer_descriptor[0].bde_type = SLI4_BDE_TYPE_BDE_64;
126 			wrobj->host_buffer_descriptor[0].buffer_length = wrobj->desired_write_length;
127 			wrobj->host_buffer_descriptor[0].u.data.buffer_address_low = ocs_addr32_lo(dma->phys);
128 			wrobj->host_buffer_descriptor[0].u.data.buffer_address_high = ocs_addr32_hi(dma->phys);
129 
130 			/* copy the data into the DMA buffer */
131 			error = copyin((void *)(uintptr_t)mcmd->in_addr, dma->virt, mcmd->in_bytes);
132 			if (error != 0) {
133 				device_printf(ocs->dev, "%s: COMMON_WRITE_OBJECT - copyin failed: %d\n",
134 						__func__, error);
135 				ocs_dma_free(ocs, dma);
136 				return error;
137 			}
138 		}
139 			break;
140 		case SLI4_OPC_COMMON_DELETE_OBJECT:
141 			break;
142 		case SLI4_OPC_COMMON_READ_OBJECT_LIST:
143 			if (mcmd->out_bytes) {
144 				sli4_req_common_read_object_list_t *rdobj =
145 					(sli4_req_common_read_object_list_t *)sli_config->payload.embed;
146 
147 				if (ocs_dma_alloc(ocs, dma, mcmd->out_bytes, 4096)) {
148 					device_printf(ocs->dev, "%s: COMMON_READ_OBJECT_LIST - %lld allocation failed\n",
149 							__func__,(unsigned long long) mcmd->out_bytes);
150 					return ENXIO;
151 				}
152 
153 				memset(dma->virt, 0, mcmd->out_bytes);
154 
155 				rdobj->host_buffer_descriptor[0].bde_type = SLI4_BDE_TYPE_BDE_64;
156 				rdobj->host_buffer_descriptor[0].buffer_length = mcmd->out_bytes;
157 				rdobj->host_buffer_descriptor[0].u.data.buffer_address_low = ocs_addr32_lo(dma->phys);
158 				rdobj->host_buffer_descriptor[0].u.data.buffer_address_high = ocs_addr32_hi(dma->phys);
159 			}
160 			break;
161 		case SLI4_OPC_COMMON_READ_TRANSCEIVER_DATA:
162 			break;
163 		default:
164 			device_printf(ocs->dev, "%s: in=%p (%lld) out=%p (%lld)\n", __func__,
165 					(void *)(uintptr_t)mcmd->in_addr, (unsigned long long)mcmd->in_bytes,
166 					(void *)(uintptr_t)mcmd->out_addr, (unsigned long long)mcmd->out_bytes);
167 			device_printf(ocs->dev, "%s: unknown (opc=%#x)\n", __func__,
168 					req->opcode);
169 			hexdump(mcmd, mcmd->size, NULL, 0);
170 			break;
171 		}
172 	} else {
173 		uint32_t max_bytes = max(mcmd->in_bytes, mcmd->out_bytes);
174 		if (ocs_dma_alloc(ocs, dma, max_bytes, 4096)) {
175 			device_printf(ocs->dev, "%s: non-embedded - %u allocation failed\n",
176 					__func__, max_bytes);
177 			return ENXIO;
178 		}
179 
180 		error = copyin((void *)(uintptr_t)mcmd->in_addr, dma->virt, mcmd->in_bytes);
181 		if (error != 0) {
182 			device_printf(ocs->dev, "%s: non-embedded - copyin failed: %d\n",
183 					__func__, error);
184 			ocs_dma_free(ocs, dma);
185 			return error;
186 		}
187 
188 		sli_config->payload.mem.address_low  = ocs_addr32_lo(dma->phys);
189 		sli_config->payload.mem.address_high = ocs_addr32_hi(dma->phys);
190 		sli_config->payload.mem.length       = max_bytes;
191 	}
192 
193 	return 0;
194 }
195 
196 static int
197 ocs_process_mbx_ioctl(ocs_t *ocs, ocs_ioctl_elxu_mbox_t *mcmd)
198 {
199 	ocs_dma_t	dma = { 0 };
200 	int error;
201 
202 	error = 0;
203 
204 	if ((ELXU_BSD_MAGIC != mcmd->magic) ||
205 			(sizeof(ocs_ioctl_elxu_mbox_t) != mcmd->size)) {
206 		device_printf(ocs->dev, "%s: malformed command m=%08x s=%08x\n",
207 				__func__, mcmd->magic, mcmd->size);
208 		return EINVAL;
209 	}
210 
211 	switch(((sli4_mbox_command_header_t *)mcmd->payload)->command) {
212 	case SLI4_MBOX_COMMAND_SLI_CONFIG:
213 		if (ENXIO == ocs_process_sli_config(ocs, mcmd, &dma))
214 			return ENXIO;
215 		break;
216 
217 	case SLI4_MBOX_COMMAND_READ_REV:
218 	case SLI4_MBOX_COMMAND_READ_STATUS:
219 	case SLI4_MBOX_COMMAND_READ_LNK_STAT:
220 		break;
221 
222 	default:
223 		device_printf(ocs->dev, "command %d\n",((sli4_mbox_command_header_t *)mcmd->payload)->command);
224 		device_printf(ocs->dev, "%s, command not support\n", __func__);
225 		goto no_support;
226 		break;
227 	}
228 
229 	/*
230 	 * The dbg_lock usage here insures the command completion code
231 	 * (__ocs_ioctl_mbox_cb), which calls wakeup(), does not run until
232 	 * after first calling msleep()
233 	 *
234 	 *  1. ioctl grabs dbg_lock
235 	 *  2. ioctl issues command
236 	 *       if the command completes before msleep(), the
237 	 *       command completion code (__ocs_ioctl_mbox_cb) will spin
238 	 *       on dbg_lock before calling wakeup()
239 	 *  3. ioctl calls msleep which releases dbg_lock before sleeping
240 	 *     and reacquires it before waking
241 	 *  4. command completion handler acquires the dbg_lock, immediately
242 	 *     releases it, and calls wakeup
243 	 *  5. msleep returns, re-acquiring the lock
244 	 *  6. ioctl code releases the lock
245 	 */
246 	mtx_lock(&ocs->dbg_lock);
247 	if (ocs_hw_command(&ocs->hw, mcmd->payload, OCS_CMD_NOWAIT,
248 			__ocs_ioctl_mbox_cb, ocs)) {
249 		device_printf(ocs->dev, "%s: command- %x failed\n", __func__,
250 			((sli4_mbox_command_header_t *)mcmd->payload)->command);
251 	}
252 	msleep(ocs, &ocs->dbg_lock, 0, "ocsmbx", 0);
253 	mtx_unlock(&ocs->dbg_lock);
254 
255 	if( SLI4_MBOX_COMMAND_SLI_CONFIG == ((sli4_mbox_command_header_t *)mcmd->payload)->command
256 	  		&& mcmd->out_bytes && dma.virt) {
257 		error = copyout(dma.virt, (void *)(uintptr_t)mcmd->out_addr, mcmd->out_bytes);
258 	}
259 
260 no_support:
261 	ocs_dma_free(ocs, &dma);
262 
263 	return error;
264 }
265 
266 /**
267  * @brief perform requested Elx CoreDump helper function
268  *
269  * The Elx CoreDump facility used for BE3 diagnostics uses the OCS_IOCTL_CMD_ECD_HELPER
270  * ioctl function to execute requested "help" functions
271  *
272  * @param ocs pointer to ocs structure
273  * @param req pointer to helper function request
274  *
275  * @return returns 0 for success, a negative error code value for failure.
276  */
277 
278 static int
279 ocs_process_ecd_helper (ocs_t *ocs, ocs_ioctl_ecd_helper_t *req)
280 {
281 	int32_t rc = 0;
282 	uint8_t v8;
283 	uint16_t v16;
284 	uint32_t v32;
285 
286 	/* Check the BAR read/write commands for valid bar */
287 	switch(req->cmd) {
288 	case OCS_ECD_HELPER_BAR_READ8:
289 	case OCS_ECD_HELPER_BAR_READ16:
290 	case OCS_ECD_HELPER_BAR_READ32:
291 	case OCS_ECD_HELPER_BAR_WRITE8:
292 	case OCS_ECD_HELPER_BAR_WRITE16:
293 	case OCS_ECD_HELPER_BAR_WRITE32:
294 		if (req->bar >= PCI_MAX_BAR) {
295 			device_printf(ocs->dev, "Error: bar %d out of range\n", req->bar);
296 			return -EFAULT;
297 		}
298 		if (ocs->reg[req->bar].res == NULL) {
299 			device_printf(ocs->dev, "Error: bar %d not defined\n", req->bar);
300 			return -EFAULT;
301 		}
302 		break;
303 	default:
304 		break;
305 	}
306 
307 	switch(req->cmd) {
308 	case OCS_ECD_HELPER_CFG_READ8:
309 		v8 = ocs_config_read8(ocs, req->offset);
310 		req->data = v8;
311 		break;
312 	case OCS_ECD_HELPER_CFG_READ16:
313 		v16 = ocs_config_read16(ocs, req->offset);
314 		req->data = v16;
315 		break;
316 	case OCS_ECD_HELPER_CFG_READ32:
317 		v32 = ocs_config_read32(ocs, req->offset);
318 		req->data = v32;
319 		break;
320 	case OCS_ECD_HELPER_CFG_WRITE8:
321 		ocs_config_write8(ocs, req->offset, req->data);
322 		break;
323 	case OCS_ECD_HELPER_CFG_WRITE16:
324 		ocs_config_write16(ocs, req->offset, req->data);
325 		break;
326 	case OCS_ECD_HELPER_CFG_WRITE32:
327 		ocs_config_write32(ocs, req->offset, req->data);
328 		break;
329 	case OCS_ECD_HELPER_BAR_READ8:
330 		req->data = ocs_reg_read8(ocs, req->bar, req->offset);
331 		break;
332 	case OCS_ECD_HELPER_BAR_READ16:
333 		req->data = ocs_reg_read16(ocs, req->bar, req->offset);
334 		break;
335 	case OCS_ECD_HELPER_BAR_READ32:
336 		req->data = ocs_reg_read32(ocs, req->bar, req->offset);
337 		break;
338 	case OCS_ECD_HELPER_BAR_WRITE8:
339 		ocs_reg_write8(ocs, req->bar, req->offset, req->data);
340 		break;
341 	case OCS_ECD_HELPER_BAR_WRITE16:
342 		ocs_reg_write16(ocs, req->bar, req->offset, req->data);
343 		break;
344 	case OCS_ECD_HELPER_BAR_WRITE32:
345 		ocs_reg_write32(ocs, req->bar, req->offset, req->data);
346 		break;
347 	default:
348 		device_printf(ocs->dev, "Invalid helper command=%d\n", req->cmd);
349 		break;
350 	}
351 
352 	return rc;
353 }
354 
355 static int
356 ocs_ioctl(struct cdev *cdev, u_long cmd, caddr_t addr, int flag, struct thread *td)
357 {
358 	int status = 0;
359 	struct ocs_softc *ocs = cdev->si_drv1;
360 	device_t dev = ocs->dev;
361 
362 	switch (cmd) {
363 	case OCS_IOCTL_CMD_ELXU_MBOX: {
364 		/* "copyin" done by kernel; thus, just dereference addr */
365 		ocs_ioctl_elxu_mbox_t *mcmd = (void *)addr;
366 		status = ocs_process_mbx_ioctl(ocs, mcmd);
367 		break;
368 	}
369 	case OCS_IOCTL_CMD_ECD_HELPER: {
370 		/* "copyin" done by kernel; thus, just dereference addr */
371 		ocs_ioctl_ecd_helper_t *req = (void *)addr;
372 		status = ocs_process_ecd_helper(ocs, req);
373 		break;
374 	}
375 
376 	case OCS_IOCTL_CMD_VPORT: {
377 		int32_t rc = 0;
378 		ocs_ioctl_vport_t *req = (ocs_ioctl_vport_t*) addr;
379 		ocs_domain_t *domain;
380 
381 		domain = ocs_domain_get_instance(ocs, req->domain_index);
382 		if (domain == NULL) {
383 			device_printf(ocs->dev, "domain [%d] nod found\n",
384 							req->domain_index);
385 			return -EFAULT;
386 		}
387 
388 		if (req->req_create) {
389 			rc = ocs_sport_vport_new(domain, req->wwpn, req->wwnn,
390 						UINT32_MAX, req->enable_ini,
391 					req->enable_tgt, NULL, NULL, TRUE);
392 		} else {
393 			rc = ocs_sport_vport_del(ocs, domain, req->wwpn, req->wwnn);
394 		}
395 
396 		return rc;
397 	}
398 
399 	case OCS_IOCTL_CMD_GET_DDUMP: {
400 		ocs_ioctl_ddump_t *req = (ocs_ioctl_ddump_t*) addr;
401 		ocs_textbuf_t textbuf;
402 		int x;
403 
404 		/* Build a text buffer */
405 		if (ocs_textbuf_alloc(ocs, &textbuf, req->user_buffer_len)) {
406 			device_printf(ocs->dev, "Error: ocs_textbuf_alloc failed\n");
407 			return -EFAULT;
408 		}
409 
410 		switch (req->args.action) {
411 		case OCS_IOCTL_DDUMP_GET:
412 		case OCS_IOCTL_DDUMP_GET_SAVED: {
413 			uint32_t remaining;
414 			uint32_t written;
415 			uint32_t idx;
416 			int32_t n;
417 			ocs_textbuf_t *ptbuf = NULL;
418 			uint32_t flags = 0;
419 
420 			if (req->args.action == OCS_IOCTL_DDUMP_GET_SAVED) {
421 				if (ocs_textbuf_initialized(&ocs->ddump_saved)) {
422 					ptbuf = &ocs->ddump_saved;
423 				}
424 			} else {
425 				if (ocs_textbuf_alloc(ocs, &textbuf, req->user_buffer_len)) {
426 					ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
427 					return -EFAULT;
428 				}
429 
430 				/* translate IOCTL ddump flags to ddump flags */
431 				if (req->args.flags & OCS_IOCTL_DDUMP_FLAGS_WQES) {
432 					flags |= OCS_DDUMP_FLAGS_WQES;
433 				}
434 				if (req->args.flags & OCS_IOCTL_DDUMP_FLAGS_CQES) {
435 					flags |= OCS_DDUMP_FLAGS_CQES;
436 				}
437 				if (req->args.flags & OCS_IOCTL_DDUMP_FLAGS_MQES) {
438 					flags |= OCS_DDUMP_FLAGS_MQES;
439 				}
440 				if (req->args.flags & OCS_IOCTL_DDUMP_FLAGS_RQES) {
441 					flags |= OCS_DDUMP_FLAGS_RQES;
442 				}
443 				if (req->args.flags & OCS_IOCTL_DDUMP_FLAGS_EQES) {
444 					flags |= OCS_DDUMP_FLAGS_EQES;
445 				}
446 
447 				/* Try 3 times to get the dump */
448 				for(x=0; x<3; x++) {
449 					if (ocs_ddump(ocs, &textbuf, flags, req->args.q_entries) != 0) {
450 						ocs_textbuf_reset(&textbuf);
451 					} else {
452 						/* Success */
453 						x = 0;
454 						break;
455 					}
456 				}
457 				if (x != 0 ) {
458 					/* Retries failed */
459 					ocs_log_test(ocs, "ocs_ddump failed\n");
460 				} else {
461 					ptbuf = &textbuf;
462 				}
463 			}
464 			written = 0;
465 			if (ptbuf != NULL) {
466 				/* Process each textbuf segment */
467 				remaining = req->user_buffer_len;
468 				for (idx = 0; remaining; idx++) {
469 					n = ocs_textbuf_ext_get_written(ptbuf, idx);
470 					if (n < 0) {
471 						break;
472 					}
473 					if ((uint32_t)n >= remaining) {
474 						n = (int32_t)remaining;
475 					}
476 					if (ocs_copy_to_user(req->user_buffer + written,
477 						ocs_textbuf_ext_get_buffer(ptbuf, idx), n)) {
478 						ocs_log_test(ocs, "Error: (%d) ocs_copy_to_user failed\n", __LINE__);
479 					}
480 					written += n;
481 					remaining -= (uint32_t)n;
482 				}
483 			}
484 			req->bytes_written = written;
485 			if (ptbuf == &textbuf) {
486 				ocs_textbuf_free(ocs, &textbuf);
487 			}
488 
489 			break;
490 		}
491 		case OCS_IOCTL_DDUMP_CLR_SAVED:
492 			ocs_clear_saved_ddump(ocs);
493 			break;
494 		default:
495 			ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
496 			break;
497 		}
498 		break;
499 	}
500 	case OCS_IOCTL_CMD_DRIVER_INFO: {
501 		ocs_ioctl_driver_info_t *req = (ocs_ioctl_driver_info_t*)addr;
502 
503 		ocs_memset(req, 0, sizeof(*req));
504 
505 		req->pci_vendor = ocs->pci_vendor;
506 		req->pci_device = ocs->pci_device;
507 		ocs_strncpy(req->businfo, ocs->businfo, sizeof(req->businfo));
508 
509 		req->sli_intf = ocs_config_read32(ocs, SLI4_INTF_REG);
510 		ocs_strncpy(req->desc, device_get_desc(dev), sizeof(req->desc));
511 		ocs_strncpy(req->fw_rev, ocs->fwrev, sizeof(req->fw_rev));
512 		if (ocs->domain && ocs->domain->sport) {
513 			*((uint64_t*)req->hw_addr.fc.wwnn) = ocs_htobe64(ocs->domain->sport->wwnn);
514 			*((uint64_t*)req->hw_addr.fc.wwpn) = ocs_htobe64(ocs->domain->sport->wwpn);
515 		}
516 		ocs_strncpy(req->serialnum, ocs->serialnum, sizeof(req->serialnum));
517 		break;
518 	}
519 
520 	case OCS_IOCTL_CMD_MGMT_LIST: {
521 		ocs_ioctl_mgmt_buffer_t* req = (ocs_ioctl_mgmt_buffer_t *)addr;
522 		ocs_textbuf_t textbuf;
523 
524 		/* Build a text buffer */
525 		if (ocs_textbuf_alloc(ocs, &textbuf, req->user_buffer_len)) {
526 			ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
527 			return -EFAULT;
528 		}
529 
530 		ocs_mgmt_get_list(ocs, &textbuf);
531 
532 		if (ocs_textbuf_get_written(&textbuf)) {
533 			if (ocs_copy_to_user(req->user_buffer,
534 				ocs_textbuf_get_buffer(&textbuf),
535 				ocs_textbuf_get_written(&textbuf))) {
536 				ocs_log_test(ocs, "Error: (%d) ocs_copy_to_user failed\n", __LINE__);
537 			}
538 		}
539 		req->bytes_written = ocs_textbuf_get_written(&textbuf);
540 
541 		ocs_textbuf_free(ocs, &textbuf);
542 
543 		break;
544 	}
545 
546 	case OCS_IOCTL_CMD_MGMT_GET_ALL: {
547 		ocs_ioctl_mgmt_buffer_t* req = (ocs_ioctl_mgmt_buffer_t *)addr;
548 		ocs_textbuf_t textbuf;
549 		int32_t n;
550 		uint32_t idx;
551 		uint32_t copied = 0;
552 
553 		/* Build a text buffer */
554 		if (ocs_textbuf_alloc(ocs, &textbuf, req->user_buffer_len)) {
555 			ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
556 			return -EFAULT;
557 		}
558 
559 		ocs_mgmt_get_all(ocs, &textbuf);
560 
561 		for (idx = 0; (n = ocs_textbuf_ext_get_written(&textbuf, idx)) > 0; idx++) {
562 			if(ocs_copy_to_user(req->user_buffer + copied,
563 					ocs_textbuf_ext_get_buffer(&textbuf, idx),
564 					ocs_textbuf_ext_get_written(&textbuf, idx))) {
565 					ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
566 			}
567 			copied += n;
568 		}
569 		req->bytes_written = copied;
570 
571 		ocs_textbuf_free(ocs, &textbuf);
572 
573 		break;
574 	}
575 
576 	case OCS_IOCTL_CMD_MGMT_GET: {
577 		ocs_ioctl_cmd_get_t* req = (ocs_ioctl_cmd_get_t*)addr;
578 		ocs_textbuf_t textbuf;
579 		char name[OCS_MGMT_MAX_NAME];
580 
581 		/* Copy the name value in from user space */
582 		if (ocs_copy_from_user(name, req->name, OCS_MGMT_MAX_NAME)) {
583 			ocs_log_test(ocs, "ocs_copy_from_user failed\n");
584 			ocs_ioctl_free(ocs, req, sizeof(ocs_ioctl_cmd_get_t));
585 			return -EFAULT;
586 		}
587 
588 		/* Build a text buffer */
589 		if (ocs_textbuf_alloc(ocs, &textbuf, req->value_length)) {
590 			ocs_log_err(ocs, "Error: ocs_textbuf_alloc failed\n");
591 			return -EFAULT;
592 		}
593 
594 		ocs_mgmt_get(ocs, name, &textbuf);
595 
596 		if (ocs_textbuf_get_written(&textbuf)) {
597 			if (ocs_copy_to_user(req->value,
598 				ocs_textbuf_get_buffer(&textbuf),
599 				ocs_textbuf_get_written(&textbuf))) {
600 				ocs_log_test(ocs, "Error: (%d) ocs_copy_to_user failed\n", __LINE__);
601 		}
602 		}
603 		req->value_length = ocs_textbuf_get_written(&textbuf);
604 
605 		ocs_textbuf_free(ocs, &textbuf);
606 
607 		break;
608 	}
609 
610 	case OCS_IOCTL_CMD_MGMT_SET: {
611 		char name[OCS_MGMT_MAX_NAME];
612 		char value[OCS_MGMT_MAX_VALUE];
613 		ocs_ioctl_cmd_set_t* req = (ocs_ioctl_cmd_set_t*)addr;
614 
615 		// Copy the name  in from user space
616 		if (ocs_copy_from_user(name, req->name, OCS_MGMT_MAX_NAME)) {
617 			ocs_log_test(ocs, "Error: copy from user failed\n");
618 			ocs_ioctl_free(ocs, req, sizeof(*req));
619 			return -EFAULT;
620 		}
621 
622 		// Copy the  value in from user space
623 		if (ocs_copy_from_user(value, req->value, OCS_MGMT_MAX_VALUE)) {
624 			ocs_log_test(ocs, "Error: copy from user failed\n");
625 			ocs_ioctl_free(ocs, req, sizeof(*req));
626 			return -EFAULT;
627 		}
628 
629 		req->result = ocs_mgmt_set(ocs, name, value);
630 
631 		break;
632 	}
633 
634 	case OCS_IOCTL_CMD_MGMT_EXEC: {
635 		ocs_ioctl_action_t* req = (ocs_ioctl_action_t*) addr;
636 		char action_name[OCS_MGMT_MAX_NAME];
637 
638 		if (ocs_copy_from_user(action_name, req->name, sizeof(action_name))) {
639 			ocs_log_test(ocs, "Error: copy req.name from user failed\n");
640 			ocs_ioctl_free(ocs, req, sizeof(*req));
641 			return -EFAULT;
642 		}
643 
644 		req->result = ocs_mgmt_exec(ocs, action_name, req->arg_in, req->arg_in_length,
645 				req->arg_out, req->arg_out_length);
646 
647 		break;
648 	}
649 
650 	default:
651 		ocs_log_test(ocs, "Error: unknown cmd %#lx\n", cmd);
652 		status = -ENOTTY;
653 		break;
654 	}
655 	return status;
656 }
657 
658 static void
659 ocs_fw_write_cb(int32_t status, uint32_t actual_write_length,
660 					uint32_t change_status, void *arg)
661 {
662         ocs_mgmt_fw_write_result_t *result = arg;
663 
664         result->status = status;
665         result->actual_xfer = actual_write_length;
666         result->change_status = change_status;
667 
668         ocs_sem_v(&(result->semaphore));
669 }
670 
671 int
672 ocs_firmware_write(ocs_t *ocs, const uint8_t *buf, size_t buf_len,
673 						uint8_t *change_status)
674 {
675         int rc = 0;
676         uint32_t bytes_left;
677         uint32_t xfer_size;
678         uint32_t offset;
679         ocs_dma_t dma;
680         int last = 0;
681         ocs_mgmt_fw_write_result_t result;
682 
683         ocs_sem_init(&(result.semaphore), 0, "fw_write");
684 
685         bytes_left = buf_len;
686         offset = 0;
687 
688         if (ocs_dma_alloc(ocs, &dma, FW_WRITE_BUFSIZE, 4096)) {
689                 ocs_log_err(ocs, "ocs_firmware_write: malloc failed\n");
690                 return -ENOMEM;
691         }
692 
693         while (bytes_left > 0) {
694                 if (bytes_left > FW_WRITE_BUFSIZE) {
695                         xfer_size = FW_WRITE_BUFSIZE;
696                 } else {
697                         xfer_size = bytes_left;
698                 }
699 
700                 ocs_memcpy(dma.virt, buf + offset, xfer_size);
701 
702                 if (bytes_left == xfer_size) {
703                         last = 1;
704                 }
705 
706                 ocs_hw_firmware_write(&ocs->hw, &dma, xfer_size, offset,
707 						last, ocs_fw_write_cb, &result);
708 
709                 if (ocs_sem_p(&(result.semaphore), OCS_SEM_FOREVER) != 0) {
710                         rc = -ENXIO;
711                         break;
712                 }
713 
714                 if (result.actual_xfer == 0 || result.status != 0) {
715                         rc = -EFAULT;
716                         break;
717                 }
718 
719                 if (last) {
720                         *change_status = result.change_status;
721                 }
722 
723                 bytes_left -= result.actual_xfer;
724                 offset += result.actual_xfer;
725         }
726 
727         ocs_dma_free(ocs, &dma);
728         return rc;
729 }
730 
731 static int
732 ocs_sys_fwupgrade(SYSCTL_HANDLER_ARGS)
733 {
734 	char file_name[256] = {0};
735 	char fw_change_status;
736 	uint32_t rc = 1;
737         ocs_t *ocs  = (ocs_t *)arg1;
738         const struct firmware *fw;
739 	const struct ocs_hw_grp_hdr *fw_image;
740 
741         rc = sysctl_handle_string(oidp, file_name, sizeof(file_name), req);
742         if (rc || !req->newptr)
743                 return rc;
744 
745         fw = firmware_get(file_name);
746         if (fw == NULL) {
747                 device_printf(ocs->dev, "Unable to get Firmware. "
748                         "Make sure %s is copied to /boot/modules\n", file_name);
749                 return ENOENT;
750         }
751 
752 	fw_image = (const struct ocs_hw_grp_hdr *)fw->data;
753 
754         /* Check if firmware provided is compatible with this particular
755          * Adapter of not*/
756         if ((ocs_be32toh(fw_image->magic_number) != OCS_HW_OBJECT_G5) &&
757                 (ocs_be32toh(fw_image->magic_number) != OCS_HW_OBJECT_G6)) {
758                 device_printf(ocs->dev,
759                         "Invalid FW image found Magic: 0x%x Size: %zu \n",
760                         ocs_be32toh(fw_image->magic_number), fw->datasize);
761                 rc = -1;
762                 goto exit;
763         }
764 
765         if (!strncmp(ocs->fw_version, fw_image->revision,
766 					strnlen(fw_image->revision, 16))) {
767                 device_printf(ocs->dev, "No update req. "
768 				"Firmware is already up to date. \n");
769                 rc = 0;
770                 goto exit;
771         }
772 
773 	device_printf(ocs->dev, "Upgrading Firmware from %s to %s \n",
774 				ocs->fw_version, fw_image->revision);
775 
776 	rc = ocs_firmware_write(ocs, fw->data, fw->datasize, &fw_change_status);
777         if (rc) {
778                 ocs_log_err(ocs, "Firmware update failed with status = %d\n", rc);
779         } else {
780                 ocs_log_info(ocs, "Firmware updated successfully\n");
781                 switch (fw_change_status) {
782                         case 0x00:
783                                 device_printf(ocs->dev,
784 				"No reset needed, new firmware is active.\n");
785                                 break;
786                         case 0x01:
787                                 device_printf(ocs->dev,
788 				"A physical device reset (host reboot) is "
789 				"needed to activate the new firmware\n");
790                                 break;
791                         case 0x02:
792                         case 0x03:
793                                 device_printf(ocs->dev,
794 				"firmware is resetting to activate the new "
795 				"firmware, Host reboot is needed \n");
796                                 break;
797                         default:
798                                 ocs_log_warn(ocs,
799                                         "Unexected value change_status: %d\n",
800                                         fw_change_status);
801                                 break;
802                 }
803         }
804 
805 exit:
806         /* Release Firmware*/
807         firmware_put(fw, FIRMWARE_UNLOAD);
808 
809         return rc;
810 
811 }
812 
813 static int
814 ocs_sysctl_wwnn(SYSCTL_HANDLER_ARGS)
815 {
816 	uint32_t rc = 1;
817 	ocs_t *ocs = oidp->oid_arg1;
818 	char old[64];
819 	char new[64];
820 	uint64_t *wwnn = NULL;
821 	ocs_xport_t *xport = ocs->xport;
822 
823 	if (xport->req_wwnn) {
824 		wwnn = &xport->req_wwnn;
825 		memset(old, 0, sizeof(old));
826 		snprintf(old, sizeof(old), "0x%llx" , (unsigned long long) *wwnn);
827 
828 	} else {
829 		wwnn = ocs_hw_get_ptr(&ocs->hw, OCS_HW_WWN_NODE);
830 
831 		memset(old, 0, sizeof(old));
832 		snprintf(old, sizeof(old), "0x%llx" , (unsigned long long) ocs_htobe64(*wwnn));
833 	}
834 
835 	/*Read wwnn*/
836 	if (!req->newptr) {
837 		return (sysctl_handle_string(oidp, old, sizeof(old), req));
838 	}
839 
840 	/*Configure port wwn*/
841 	rc = sysctl_handle_string(oidp, new, sizeof(new), req);
842 	if (rc)
843 		return (rc);
844 
845 	if (strncmp(old, new, strlen(old)) == 0) {
846 		return 0;
847 	}
848 
849 	return (set_req_wwnn(ocs, NULL, new));
850 }
851 
852 static int
853 ocs_sysctl_wwpn(SYSCTL_HANDLER_ARGS)
854 {
855 	uint32_t rc = 1;
856 	ocs_t *ocs = oidp->oid_arg1;
857 	char old[64];
858 	char new[64];
859 	uint64_t *wwpn = NULL;
860 	ocs_xport_t *xport = ocs->xport;
861 
862 	if (xport->req_wwpn) {
863 		wwpn = &xport->req_wwpn;
864 		memset(old, 0, sizeof(old));
865 		snprintf(old, sizeof(old), "0x%llx",(unsigned long long) *wwpn);
866 	} else {
867 		wwpn = ocs_hw_get_ptr(&ocs->hw, OCS_HW_WWN_PORT);
868 		memset(old, 0, sizeof(old));
869 		snprintf(old, sizeof(old), "0x%llx",(unsigned long long) ocs_htobe64(*wwpn));
870 	}
871 
872 	/*Read wwpn*/
873 	if (!req->newptr) {
874 		return (sysctl_handle_string(oidp, old, sizeof(old), req));
875 	}
876 
877 	/*Configure port wwn*/
878 	rc = sysctl_handle_string(oidp, new, sizeof(new), req);
879 	if (rc)
880 		return (rc);
881 
882 	if (strncmp(old, new, strlen(old)) == 0) {
883 		return 0;
884 	}
885 
886 	return (set_req_wwpn(ocs, NULL, new));
887 }
888 
889 static int
890 ocs_sysctl_current_topology(SYSCTL_HANDLER_ARGS)
891 {
892 	ocs_t *ocs = oidp->oid_arg1;
893 	uint32_t value;
894 
895 	ocs_hw_get(&ocs->hw, OCS_HW_TOPOLOGY, &value);
896 
897 	return (sysctl_handle_int(oidp, &value, 0, req));
898 }
899 
900 static int
901 ocs_sysctl_current_speed(SYSCTL_HANDLER_ARGS)
902 {
903 	ocs_t *ocs = oidp->oid_arg1;
904 	uint32_t value;
905 
906 	ocs_hw_get(&ocs->hw, OCS_HW_LINK_SPEED, &value);
907 
908 	return (sysctl_handle_int(oidp, &value, 0, req));
909 }
910 
911 static int
912 ocs_sysctl_config_topology(SYSCTL_HANDLER_ARGS)
913 {
914 	uint32_t rc = 1;
915 	ocs_t *ocs = oidp->oid_arg1;
916 	uint32_t old_value;
917 	uint32_t new_value;
918 	char buf[64];
919 
920 	ocs_hw_get(&ocs->hw, OCS_HW_CONFIG_TOPOLOGY, &old_value);
921 
922 	/*Read topo*/
923 	if (!req->newptr) {
924 		return (sysctl_handle_int(oidp, &old_value, 0, req));
925 	}
926 
927 	/*Configure port wwn*/
928 	rc = sysctl_handle_int(oidp, &new_value, 0, req);
929 	if (rc)
930 		return (rc);
931 
932 	if (new_value == old_value) {
933 		return 0;
934 	}
935 
936 	snprintf(buf, sizeof(buf), "%d",new_value);
937 	rc = set_configured_topology(ocs, NULL, buf);
938 	return rc;
939 }
940 
941 static int
942 ocs_sysctl_config_speed(SYSCTL_HANDLER_ARGS)
943 {
944 	uint32_t rc = 1;
945 	ocs_t *ocs = oidp->oid_arg1;
946 	uint32_t old_value;
947 	uint32_t new_value;
948 	char buf[64];
949 
950 	ocs_hw_get(&ocs->hw, OCS_HW_LINK_CONFIG_SPEED, &old_value);
951 
952 	/*Read topo*/
953 	if (!req->newptr) {
954 		return (sysctl_handle_int(oidp, &old_value, 0, req));
955 	}
956 
957 	/*Configure port wwn*/
958 	rc = sysctl_handle_int(oidp, &new_value, 0, req);
959 	if (rc)
960 		return (rc);
961 
962 	if (new_value == old_value) {
963 		return 0;
964 	}
965 
966 	snprintf(buf, sizeof(buf), "%d",new_value);
967 	rc = set_configured_speed(ocs, NULL,buf);
968 	return rc;
969 }
970 
971 static int
972 ocs_sysctl_fcid(SYSCTL_HANDLER_ARGS)
973 {
974 	ocs_t *ocs = oidp->oid_arg1;
975 	char buf[64];
976 
977 	memset(buf, 0, sizeof(buf));
978 	if (ocs->domain && ocs->domain->attached) {
979 		snprintf(buf, sizeof(buf), "0x%06x",
980 			ocs->domain->sport->fc_id);
981 	}
982 
983 	return (sysctl_handle_string(oidp, buf, sizeof(buf), req));
984 }
985 
986 static int
987 ocs_sysctl_port_state(SYSCTL_HANDLER_ARGS)
988 {
989 
990 	char new[256] = {0};
991 	uint32_t rc = 1;
992 	ocs_xport_stats_t old;
993 	ocs_t *ocs  = (ocs_t *)arg1;
994 
995 	ocs_xport_status(ocs->xport, OCS_XPORT_CONFIG_PORT_STATUS, &old);
996 
997 	/*Read port state */
998 	if (!req->newptr) {
999 		snprintf(new, sizeof(new), "%s",
1000 			(old.value == OCS_XPORT_PORT_OFFLINE) ?
1001 					 "offline" : "online");
1002 		return (sysctl_handle_string(oidp, new, sizeof(new), req));
1003         }
1004 
1005 	/*Configure port state*/
1006 	rc = sysctl_handle_string(oidp, new, sizeof(new), req);
1007 	if (rc)
1008 		return (rc);
1009 
1010 	if (ocs_strcasecmp(new, "offline") == 0) {
1011 		if (old.value == OCS_XPORT_PORT_OFFLINE) {
1012 			return (0);
1013 		}
1014 		ocs_log_debug(ocs, "Setting port to %s\n", new);
1015 		rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_OFFLINE);
1016 		if (rc != 0) {
1017 			ocs_log_err(ocs, "Setting port to offline failed\n");
1018 		}
1019 	} else if (ocs_strcasecmp(new, "online") == 0) {
1020 		if (old.value == OCS_XPORT_PORT_ONLINE) {
1021 			return (0);
1022 		}
1023 		ocs_log_debug(ocs, "Setting port to %s\n", new);
1024 		rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_ONLINE);
1025 		if (rc != 0) {
1026 			ocs_log_err(ocs, "Setting port to online failed\n");
1027 		}
1028 	} else {
1029 		ocs_log_err(ocs, "Unsupported link state %s\n", new);
1030 		rc = 1;
1031 	}
1032 
1033 	return (rc);
1034 
1035 }
1036 
1037 static int
1038 ocs_sysctl_vport_wwpn(SYSCTL_HANDLER_ARGS)
1039 {
1040 	ocs_fcport *fcp = oidp->oid_arg1;
1041 	char str_wwpn[64];
1042 
1043 	memset(str_wwpn, 0, sizeof(str_wwpn));
1044 	snprintf(str_wwpn, sizeof(str_wwpn), "0x%llx", (unsigned long long)fcp->vport->wwpn);
1045 
1046 	return (sysctl_handle_string(oidp, str_wwpn, sizeof(str_wwpn), req));
1047 }
1048 
1049 static int
1050 ocs_sysctl_vport_wwnn(SYSCTL_HANDLER_ARGS)
1051 {
1052 	ocs_fcport *fcp = oidp->oid_arg1;
1053 	char str_wwnn[64];
1054 
1055 	memset(str_wwnn, 0, sizeof(str_wwnn));
1056 	snprintf(str_wwnn, sizeof(str_wwnn), "0x%llx", (unsigned long long)fcp->vport->wwnn);
1057 
1058 	return (sysctl_handle_string(oidp, str_wwnn, sizeof(str_wwnn), req));
1059 }
1060 
1061 /**
1062  * @brief Initialize sysctl
1063  *
1064  * Initialize sysctl so elxsdkutil can query device information.
1065  *
1066  * @param ocs pointer to ocs
1067  * @return void
1068  */
1069 static void
1070 ocs_sysctl_init(ocs_t *ocs)
1071 {
1072 	struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(ocs->dev);
1073 	struct sysctl_oid *tree = device_get_sysctl_tree(ocs->dev);
1074 	struct sysctl_oid *vtree;
1075 	const char *str = NULL;
1076 	char name[16];
1077 	uint32_t rev, if_type, family, i;
1078 	ocs_fcport *fcp = NULL;
1079 
1080 	SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1081 			"devid", CTLFLAG_RD, NULL,
1082 			pci_get_devid(ocs->dev), "Device ID");
1083 
1084 	memset(ocs->modeldesc, 0, sizeof(ocs->modeldesc));
1085 	if (0 == pci_get_vpd_ident(ocs->dev, &str)) {
1086 		snprintf(ocs->modeldesc, sizeof(ocs->modeldesc), "%s", str);
1087 	}
1088 	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1089 			"modeldesc", CTLFLAG_RD,
1090 			ocs->modeldesc,
1091 			0, "Model Description");
1092 
1093 	memset(ocs->serialnum, 0, sizeof(ocs->serialnum));
1094 	if (0 == pci_get_vpd_readonly(ocs->dev, "SN", &str)) {
1095 		snprintf(ocs->serialnum, sizeof(ocs->serialnum), "%s", str);
1096 	}
1097 	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1098 			"sn", CTLFLAG_RD,
1099 			ocs->serialnum,
1100 			0, "Serial Number");
1101 
1102 	ocs_hw_get(&ocs->hw, OCS_HW_SLI_REV, &rev);
1103 	ocs_hw_get(&ocs->hw, OCS_HW_IF_TYPE, &if_type);
1104 	ocs_hw_get(&ocs->hw, OCS_HW_SLI_FAMILY, &family);
1105 
1106 	memset(ocs->fwrev, 0, sizeof(ocs->fwrev));
1107 	snprintf(ocs->fwrev, sizeof(ocs->fwrev), "%s, sli-%d:%d:%x",
1108 			(char *)ocs_hw_get_ptr(&ocs->hw, OCS_HW_FW_REV),
1109 			rev, if_type, family);
1110 	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1111 			"fwrev", CTLFLAG_RD,
1112 			ocs->fwrev,
1113 			0, "Firmware Revision");
1114 
1115 	memset(ocs->sli_intf, 0, sizeof(ocs->sli_intf));
1116 	snprintf(ocs->sli_intf, sizeof(ocs->sli_intf), "%08x",
1117 		 ocs_config_read32(ocs, SLI4_INTF_REG));
1118 	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1119 			  "sli_intf", CTLFLAG_RD,
1120 			  ocs->sli_intf,
1121 			  0, "SLI Interface");
1122 
1123         SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "fw_upgrade",
1124             CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, (void *)ocs, 0,
1125 	    ocs_sys_fwupgrade, "A", "Firmware grp file");
1126 
1127 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1128 	    "wwnn", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE,
1129 	    ocs, 0, ocs_sysctl_wwnn, "A",
1130 	    "World Wide Node Name, wwnn should be in the format 0x<XXXXXXXXXXXXXXXX>");
1131 
1132 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1133 	    "wwpn", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE,
1134 	    ocs, 0, ocs_sysctl_wwpn, "A",
1135 	    "World Wide Port Name, wwpn should be in the format 0x<XXXXXXXXXXXXXXXX>");
1136 
1137 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1138 	    "current_topology", CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE,
1139 	    ocs, 0, ocs_sysctl_current_topology, "IU",
1140 	    "Current Topology, 1-NPort; 2-Loop; 3-None");
1141 
1142 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1143 	    "current_speed", CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE,
1144 	    ocs, 0, ocs_sysctl_current_speed, "IU",
1145 	    "Current Speed");
1146 
1147 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1148 	    "configured_topology", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE,
1149 	    ocs, 0, ocs_sysctl_config_topology, "IU",
1150 	    "Configured Topology, 0-Auto; 1-NPort; 2-Loop");
1151 
1152 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1153 	    "configured_speed", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE,
1154 	    ocs, 0, ocs_sysctl_config_speed, "IU",
1155 	    "Configured Speed, 0-Auto, 2000, 4000, 8000, 16000, 32000");
1156 
1157 	SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1158 	    "businfo", CTLFLAG_RD, ocs->businfo, 0, "Bus Info");
1159 
1160 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1161 	    "fcid", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
1162 	    ocs, 0, ocs_sysctl_fcid, "A", "Port FC ID");
1163 
1164 	SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
1165 	    "port_state", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE,
1166 	    ocs, 0, ocs_sysctl_port_state, "A", "configured port state");
1167 
1168 	for (i	= 0; i < ocs->num_vports; i++) {
1169 		fcp = FCPORT(ocs, i+1);
1170 
1171 		memset(name, 0, sizeof(name));
1172 		snprintf(name, sizeof(name), "vport%d", i);
1173 		vtree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
1174 		    OID_AUTO, name, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
1175 		    "Virtual port");
1176 
1177 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(vtree), OID_AUTO,
1178 		    "wwnn", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE,
1179 		    fcp, 0, ocs_sysctl_vport_wwnn, "A",
1180 		    "World Wide Node Name");
1181 
1182 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(vtree), OID_AUTO,
1183 		    "wwpn", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE,
1184 		    fcp, 0, ocs_sysctl_vport_wwpn, "A", "World Wide Port Name");
1185 	}
1186 
1187 }
1188 
1189 /**
1190  * @brief Initialize the debug module
1191  *
1192  * Parse device hints (similar to Linux module parameters) here. To use,
1193  * run the command
1194  *    kenv hint.ocs.U.P=V
1195  * from the command line replacing U with the unit # (0,1,...),
1196  * P with the parameter name (debug_mask), and V with the value
1197  */
1198 void
1199 ocs_debug_attach(void *os)
1200 {
1201 	struct ocs_softc *ocs = os;
1202 	int error = 0;
1203 	char *resname = NULL;
1204 	int32_t	unit = INT32_MAX;
1205 	uint32_t ocs_debug_mask = 0;
1206 
1207 	resname = "debug_mask";
1208 	if (0 == (error = resource_int_value(device_get_name(ocs->dev), device_get_unit(ocs->dev),
1209 				resname, &ocs_debug_mask))) {
1210 		device_printf(ocs->dev, "setting %s to %010x\n", resname, ocs_debug_mask);
1211 		ocs_debug_enable(ocs_debug_mask);
1212 	}
1213 
1214 	unit = device_get_unit(ocs->dev);
1215 	ocs->cdev = make_dev(&ocs_cdevsw, unit, UID_ROOT, GID_OPERATOR, 0640,
1216 			"ocs%d", unit);
1217 	if (ocs->cdev) {
1218 		ocs->cdev->si_drv1 = ocs;
1219 	}
1220 
1221 	/* initialize sysctl interface */
1222 	ocs_sysctl_init(ocs);
1223 	mtx_init(&ocs->dbg_lock, "ocs_dbg_lock", NULL, MTX_DEF);
1224 }
1225 
1226 /**
1227  * @brief Free the debug module
1228  */
1229 void
1230 ocs_debug_detach(void *os)
1231 {
1232 	struct ocs_softc *ocs = os;
1233 
1234 	mtx_destroy(&ocs->dbg_lock);
1235 
1236 	if (ocs->cdev) {
1237 		ocs->cdev->si_drv1 = NULL;
1238 		destroy_dev(ocs->cdev);
1239 	}
1240 }
1241