xref: /dpdk/drivers/net/qede/qede_main.c (revision a49342abbb5d68fafab1d2ba4c669c0e76e32c65)
1 /*
2  * Copyright (c) 2016 QLogic Corporation.
3  * All rights reserved.
4  * www.qlogic.com
5  *
6  * See LICENSE.qede_pmd for copyright and licensing details.
7  */
8 
9 #include <limits.h>
10 #include <time.h>
11 #include <rte_alarm.h>
12 
13 #include "qede_ethdev.h"
14 
15 static uint8_t npar_tx_switching = 1;
16 
17 /* Alarm timeout. */
18 #define QEDE_ALARM_TIMEOUT_US 100000
19 
20 /* Global variable to hold absolute path of fw file */
21 char fw_file[PATH_MAX];
22 
23 const char *QEDE_DEFAULT_FIRMWARE =
24 	"/lib/firmware/qed/qed_init_values-8.10.9.0.bin";
25 
26 static void
27 qed_update_pf_params(struct ecore_dev *edev, struct ecore_pf_params *params)
28 {
29 	int i;
30 
31 	for (i = 0; i < edev->num_hwfns; i++) {
32 		struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
33 		p_hwfn->pf_params = *params;
34 	}
35 }
36 
37 static void qed_init_pci(struct ecore_dev *edev, struct rte_pci_device *pci_dev)
38 {
39 	edev->regview = pci_dev->mem_resource[0].addr;
40 	edev->doorbells = pci_dev->mem_resource[2].addr;
41 }
42 
43 static int
44 qed_probe(struct ecore_dev *edev, struct rte_pci_device *pci_dev,
45 	  enum qed_protocol protocol, uint32_t dp_module,
46 	  uint8_t dp_level, bool is_vf)
47 {
48 	struct ecore_hw_prepare_params hw_prepare_params;
49 	struct qede_dev *qdev = (struct qede_dev *)edev;
50 	int rc;
51 
52 	ecore_init_struct(edev);
53 	qdev->protocol = protocol;
54 	if (is_vf) {
55 		edev->b_is_vf = true;
56 		edev->b_hw_channel = true; /* @DPDK */
57 	}
58 	ecore_init_dp(edev, dp_module, dp_level, NULL);
59 	qed_init_pci(edev, pci_dev);
60 
61 	memset(&hw_prepare_params, 0, sizeof(hw_prepare_params));
62 	hw_prepare_params.personality = ECORE_PCI_ETH;
63 	hw_prepare_params.drv_resc_alloc = false;
64 	hw_prepare_params.chk_reg_fifo = false;
65 	rc = ecore_hw_prepare(edev, &hw_prepare_params);
66 	if (rc) {
67 		DP_ERR(edev, "hw prepare failed\n");
68 		return rc;
69 	}
70 
71 	return rc;
72 }
73 
74 static int qed_nic_setup(struct ecore_dev *edev)
75 {
76 	int rc, i;
77 
78 	rc = ecore_resc_alloc(edev);
79 	if (rc)
80 		return rc;
81 
82 	DP_INFO(edev, "Allocated qed resources\n");
83 	ecore_resc_setup(edev);
84 
85 	return rc;
86 }
87 
88 #ifdef CONFIG_ECORE_ZIPPED_FW
89 static int qed_alloc_stream_mem(struct ecore_dev *edev)
90 {
91 	int i;
92 
93 	for_each_hwfn(edev, i) {
94 		struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
95 
96 		p_hwfn->stream = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
97 					     sizeof(*p_hwfn->stream));
98 		if (!p_hwfn->stream)
99 			return -ENOMEM;
100 	}
101 
102 	return 0;
103 }
104 
105 static void qed_free_stream_mem(struct ecore_dev *edev)
106 {
107 	int i;
108 
109 	for_each_hwfn(edev, i) {
110 		struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
111 
112 		if (!p_hwfn->stream)
113 			return;
114 
115 		OSAL_FREE(p_hwfn->p_dev, p_hwfn->stream);
116 	}
117 }
118 #endif
119 
120 #ifdef CONFIG_ECORE_BINARY_FW
121 static int qed_load_firmware_data(struct ecore_dev *edev)
122 {
123 	int fd;
124 	struct stat st;
125 	const char *fw = RTE_LIBRTE_QEDE_FW;
126 
127 	if (strcmp(fw, "") == 0)
128 		strcpy(fw_file, QEDE_DEFAULT_FIRMWARE);
129 	else
130 		strcpy(fw_file, fw);
131 
132 	fd = open(fw_file, O_RDONLY);
133 	if (fd < 0) {
134 		DP_NOTICE(edev, false, "Can't open firmware file\n");
135 		return -ENOENT;
136 	}
137 
138 	if (fstat(fd, &st) < 0) {
139 		DP_NOTICE(edev, false, "Can't stat firmware file\n");
140 		return -1;
141 	}
142 
143 	edev->firmware = rte_zmalloc("qede_fw", st.st_size,
144 				    RTE_CACHE_LINE_SIZE);
145 	if (!edev->firmware) {
146 		DP_NOTICE(edev, false, "Can't allocate memory for firmware\n");
147 		close(fd);
148 		return -ENOMEM;
149 	}
150 
151 	if (read(fd, edev->firmware, st.st_size) != st.st_size) {
152 		DP_NOTICE(edev, false, "Can't read firmware data\n");
153 		close(fd);
154 		return -1;
155 	}
156 
157 	edev->fw_len = st.st_size;
158 	if (edev->fw_len < 104) {
159 		DP_NOTICE(edev, false, "Invalid fw size: %" PRIu64 "\n",
160 			  edev->fw_len);
161 		return -EINVAL;
162 	}
163 
164 	return 0;
165 }
166 #endif
167 
168 static void qed_handle_bulletin_change(struct ecore_hwfn *hwfn)
169 {
170 	uint8_t mac[ETH_ALEN], is_mac_exist, is_mac_forced;
171 
172 	is_mac_exist = ecore_vf_bulletin_get_forced_mac(hwfn, mac,
173 						      &is_mac_forced);
174 	if (is_mac_exist && is_mac_forced)
175 		rte_memcpy(hwfn->hw_info.hw_mac_addr, mac, ETH_ALEN);
176 
177 	/* Always update link configuration according to bulletin */
178 	qed_link_update(hwfn);
179 }
180 
181 static void qede_vf_task(void *arg)
182 {
183 	struct ecore_hwfn *p_hwfn = arg;
184 	uint8_t change = 0;
185 
186 	/* Read the bulletin board, and re-schedule the task */
187 	ecore_vf_read_bulletin(p_hwfn, &change);
188 	if (change)
189 		qed_handle_bulletin_change(p_hwfn);
190 
191 	rte_eal_alarm_set(QEDE_ALARM_TIMEOUT_US, qede_vf_task, p_hwfn);
192 }
193 
194 static void qed_start_iov_task(struct ecore_dev *edev)
195 {
196 	struct ecore_hwfn *p_hwfn;
197 	int i;
198 
199 	for_each_hwfn(edev, i) {
200 		p_hwfn = &edev->hwfns[i];
201 		if (!IS_PF(edev))
202 			rte_eal_alarm_set(QEDE_ALARM_TIMEOUT_US, qede_vf_task,
203 					  p_hwfn);
204 	}
205 }
206 
207 static void qed_stop_iov_task(struct ecore_dev *edev)
208 {
209 	struct ecore_hwfn *p_hwfn;
210 	int i;
211 
212 	for_each_hwfn(edev, i) {
213 		p_hwfn = &edev->hwfns[i];
214 		if (!IS_PF(edev))
215 			rte_eal_alarm_cancel(qede_vf_task, p_hwfn);
216 	}
217 }
218 static int qed_slowpath_start(struct ecore_dev *edev,
219 			      struct qed_slowpath_params *params)
220 {
221 	bool allow_npar_tx_switching;
222 	const uint8_t *data = NULL;
223 	struct ecore_hwfn *hwfn;
224 	struct ecore_mcp_drv_version drv_version;
225 	struct ecore_hw_init_params hw_init_params;
226 	struct qede_dev *qdev = (struct qede_dev *)edev;
227 	int rc;
228 #ifdef QED_ENC_SUPPORTED
229 	struct ecore_tunn_start_params tunn_info;
230 #endif
231 
232 #ifdef CONFIG_ECORE_BINARY_FW
233 	if (IS_PF(edev)) {
234 		rc = qed_load_firmware_data(edev);
235 		if (rc) {
236 			DP_NOTICE(edev, true,
237 				  "Failed to find fw file %s\n", fw_file);
238 			goto err;
239 		}
240 	}
241 #endif
242 
243 	rc = qed_nic_setup(edev);
244 	if (rc)
245 		goto err;
246 
247 	/* set int_coalescing_mode */
248 	edev->int_coalescing_mode = ECORE_COAL_MODE_ENABLE;
249 
250 #ifdef CONFIG_ECORE_ZIPPED_FW
251 	if (IS_PF(edev)) {
252 		/* Allocate stream for unzipping */
253 		rc = qed_alloc_stream_mem(edev);
254 		if (rc) {
255 			DP_NOTICE(edev, true,
256 			"Failed to allocate stream memory\n");
257 			goto err2;
258 		}
259 	}
260 
261 	qed_start_iov_task(edev);
262 #endif
263 
264 #ifdef CONFIG_ECORE_BINARY_FW
265 	if (IS_PF(edev))
266 		data = (const uint8_t *)edev->firmware + sizeof(u32);
267 #endif
268 
269 	allow_npar_tx_switching = npar_tx_switching ? true : false;
270 
271 	/* Start the slowpath */
272 	memset(&hw_init_params, 0, sizeof(hw_init_params));
273 #ifdef QED_ENC_SUPPORTED
274 	memset(&tunn_info, 0, sizeof(tunn_info));
275 	tunn_info.tunn_mode |= 1 << QED_MODE_VXLAN_TUNN |
276 	    1 << QED_MODE_L2GRE_TUNN |
277 	    1 << QED_MODE_IPGRE_TUNN |
278 	    1 << QED_MODE_L2GENEVE_TUNN | 1 << QED_MODE_IPGENEVE_TUNN;
279 	tunn_info.tunn_clss_vxlan = QED_TUNN_CLSS_MAC_VLAN;
280 	tunn_info.tunn_clss_l2gre = QED_TUNN_CLSS_MAC_VLAN;
281 	tunn_info.tunn_clss_ipgre = QED_TUNN_CLSS_MAC_VLAN;
282 	hw_init_params.p_tunn = &tunn_info;
283 #endif
284 	hw_init_params.b_hw_start = true;
285 	hw_init_params.int_mode = ECORE_INT_MODE_MSIX;
286 	hw_init_params.allow_npar_tx_switch = allow_npar_tx_switching;
287 	hw_init_params.bin_fw_data = data;
288 	hw_init_params.epoch = (u32)time(NULL);
289 	rc = ecore_hw_init(edev, &hw_init_params);
290 	if (rc) {
291 		DP_ERR(edev, "ecore_hw_init failed\n");
292 		goto err2;
293 	}
294 
295 	DP_INFO(edev, "HW inited and function started\n");
296 
297 	if (IS_PF(edev)) {
298 		hwfn = ECORE_LEADING_HWFN(edev);
299 		drv_version.version = (params->drv_major << 24) |
300 		    (params->drv_minor << 16) |
301 		    (params->drv_rev << 8) | (params->drv_eng);
302 		/* TBD: strlcpy() */
303 		strncpy((char *)drv_version.name, (const char *)params->name,
304 			MCP_DRV_VER_STR_SIZE - 4);
305 		rc = ecore_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
306 						&drv_version);
307 		if (rc) {
308 			DP_NOTICE(edev, true,
309 				  "Failed sending drv version command\n");
310 			return rc;
311 		}
312 	}
313 
314 	ecore_reset_vport_stats(edev);
315 
316 	return 0;
317 
318 	ecore_hw_stop(edev);
319 err2:
320 	ecore_resc_free(edev);
321 err:
322 #ifdef CONFIG_ECORE_BINARY_FW
323 	if (IS_PF(edev)) {
324 		if (edev->firmware)
325 			rte_free(edev->firmware);
326 		edev->firmware = NULL;
327 	}
328 #endif
329 	qed_stop_iov_task(edev);
330 
331 	return rc;
332 }
333 
334 static int
335 qed_fill_dev_info(struct ecore_dev *edev, struct qed_dev_info *dev_info)
336 {
337 	struct ecore_ptt *ptt = NULL;
338 
339 	memset(dev_info, 0, sizeof(struct qed_dev_info));
340 	dev_info->num_hwfns = edev->num_hwfns;
341 	dev_info->is_mf_default = IS_MF_DEFAULT(&edev->hwfns[0]);
342 	rte_memcpy(&dev_info->hw_mac, &edev->hwfns[0].hw_info.hw_mac_addr,
343 	       ETHER_ADDR_LEN);
344 
345 	if (IS_PF(edev)) {
346 		dev_info->fw_major = FW_MAJOR_VERSION;
347 		dev_info->fw_minor = FW_MINOR_VERSION;
348 		dev_info->fw_rev = FW_REVISION_VERSION;
349 		dev_info->fw_eng = FW_ENGINEERING_VERSION;
350 		dev_info->mf_mode = edev->mf_mode;
351 		dev_info->tx_switching = false;
352 	} else {
353 		ecore_vf_get_fw_version(&edev->hwfns[0], &dev_info->fw_major,
354 					&dev_info->fw_minor, &dev_info->fw_rev,
355 					&dev_info->fw_eng);
356 	}
357 
358 	if (IS_PF(edev)) {
359 		ptt = ecore_ptt_acquire(ECORE_LEADING_HWFN(edev));
360 		if (ptt) {
361 			ecore_mcp_get_mfw_ver(ECORE_LEADING_HWFN(edev), ptt,
362 					      &dev_info->mfw_rev, NULL);
363 
364 			ecore_mcp_get_flash_size(ECORE_LEADING_HWFN(edev), ptt,
365 						 &dev_info->flash_size);
366 
367 			/* Workaround to allow PHY-read commands for
368 			 * B0 bringup.
369 			 */
370 			if (ECORE_IS_BB_B0(edev))
371 				dev_info->flash_size = 0xffffffff;
372 
373 			ecore_ptt_release(ECORE_LEADING_HWFN(edev), ptt);
374 		}
375 	} else {
376 		ecore_mcp_get_mfw_ver(ECORE_LEADING_HWFN(edev), ptt,
377 				      &dev_info->mfw_rev, NULL);
378 	}
379 
380 	return 0;
381 }
382 
383 int
384 qed_fill_eth_dev_info(struct ecore_dev *edev, struct qed_dev_eth_info *info)
385 {
386 	struct qede_dev *qdev = (struct qede_dev *)edev;
387 	uint8_t queues = 0;
388 	int i;
389 
390 	memset(info, 0, sizeof(*info));
391 
392 	info->num_tc = 1 /* @@@TBD aelior MULTI_COS */;
393 
394 	if (IS_PF(edev)) {
395 		int max_vf_vlan_filters = 0;
396 
397 		info->num_queues = 0;
398 		for_each_hwfn(edev, i)
399 			info->num_queues +=
400 			FEAT_NUM(&edev->hwfns[i], ECORE_PF_L2_QUE);
401 
402 		if (edev->p_iov_info)
403 			max_vf_vlan_filters = edev->p_iov_info->total_vfs *
404 					      ECORE_ETH_VF_NUM_VLAN_FILTERS;
405 		info->num_vlan_filters = RESC_NUM(&edev->hwfns[0], ECORE_VLAN) -
406 					 max_vf_vlan_filters;
407 
408 		rte_memcpy(&info->port_mac, &edev->hwfns[0].hw_info.hw_mac_addr,
409 			   ETHER_ADDR_LEN);
410 	} else {
411 		ecore_vf_get_num_rxqs(ECORE_LEADING_HWFN(edev),
412 				      &info->num_queues);
413 		if (edev->num_hwfns > 1) {
414 			ecore_vf_get_num_rxqs(&edev->hwfns[1], &queues);
415 			info->num_queues += queues;
416 			/* Restrict 100G VF to advertise 16 queues till the
417 			 * required support is available to go beyond 16.
418 			 */
419 			info->num_queues = RTE_MIN(info->num_queues,
420 						   ECORE_MAX_VF_CHAINS_PER_PF);
421 		}
422 
423 		ecore_vf_get_num_vlan_filters(&edev->hwfns[0],
424 					      (u8 *)&info->num_vlan_filters);
425 
426 		ecore_vf_get_port_mac(&edev->hwfns[0],
427 				      (uint8_t *)&info->port_mac);
428 	}
429 
430 	qed_fill_dev_info(edev, &info->common);
431 
432 	if (IS_VF(edev))
433 		memset(&info->common.hw_mac, 0, ETHER_ADDR_LEN);
434 
435 	return 0;
436 }
437 
438 static void
439 qed_set_id(struct ecore_dev *edev, char name[NAME_SIZE],
440 	   const char ver_str[NAME_SIZE])
441 {
442 	int i;
443 
444 	rte_memcpy(edev->name, name, NAME_SIZE);
445 	for_each_hwfn(edev, i) {
446 		snprintf(edev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
447 	}
448 	memcpy(edev->ver_str, ver_str, NAME_SIZE);
449 	edev->drv_type = DRV_ID_DRV_TYPE_LINUX;
450 }
451 
452 static uint32_t
453 qed_sb_init(struct ecore_dev *edev, struct ecore_sb_info *sb_info,
454 	    void *sb_virt_addr, dma_addr_t sb_phy_addr,
455 	    uint16_t sb_id, enum qed_sb_type type)
456 {
457 	struct ecore_hwfn *p_hwfn;
458 	int hwfn_index;
459 	uint16_t rel_sb_id;
460 	uint8_t n_hwfns;
461 	uint32_t rc;
462 
463 	/* RoCE uses single engine and CMT uses two engines. When using both
464 	 * we force only a single engine. Storage uses only engine 0 too.
465 	 */
466 	if (type == QED_SB_TYPE_L2_QUEUE)
467 		n_hwfns = edev->num_hwfns;
468 	else
469 		n_hwfns = 1;
470 
471 	hwfn_index = sb_id % n_hwfns;
472 	p_hwfn = &edev->hwfns[hwfn_index];
473 	rel_sb_id = sb_id / n_hwfns;
474 
475 	DP_INFO(edev, "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
476 		hwfn_index, rel_sb_id, sb_id);
477 
478 	rc = ecore_int_sb_init(p_hwfn, p_hwfn->p_main_ptt, sb_info,
479 			       sb_virt_addr, sb_phy_addr, rel_sb_id);
480 
481 	return rc;
482 }
483 
484 static void qed_fill_link(struct ecore_hwfn *hwfn,
485 			  struct qed_link_output *if_link)
486 {
487 	struct ecore_mcp_link_params params;
488 	struct ecore_mcp_link_state link;
489 	struct ecore_mcp_link_capabilities link_caps;
490 	uint32_t media_type;
491 	uint32_t adv_speed;
492 	uint8_t change = 0;
493 
494 	memset(if_link, 0, sizeof(*if_link));
495 
496 	/* Prepare source inputs */
497 	if (IS_PF(hwfn->p_dev)) {
498 		rte_memcpy(&params, ecore_mcp_get_link_params(hwfn),
499 		       sizeof(params));
500 		rte_memcpy(&link, ecore_mcp_get_link_state(hwfn), sizeof(link));
501 		rte_memcpy(&link_caps, ecore_mcp_get_link_capabilities(hwfn),
502 		       sizeof(link_caps));
503 	} else {
504 		ecore_vf_read_bulletin(hwfn, &change);
505 		ecore_vf_get_link_params(hwfn, &params);
506 		ecore_vf_get_link_state(hwfn, &link);
507 		ecore_vf_get_link_caps(hwfn, &link_caps);
508 	}
509 
510 	/* Set the link parameters to pass to protocol driver */
511 	if (link.link_up)
512 		if_link->link_up = true;
513 
514 	if (link.link_up)
515 		if_link->speed = link.speed;
516 
517 	if_link->duplex = QEDE_DUPLEX_FULL;
518 
519 	/* Fill up the native advertised speed */
520 	switch (params.speed.advertised_speeds) {
521 	case NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G:
522 		adv_speed = 10000;
523 	break;
524 	case NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G:
525 		adv_speed = 25000;
526 	break;
527 	case NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G:
528 		adv_speed = 40000;
529 	break;
530 	case NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G:
531 		adv_speed = 50000;
532 	break;
533 	case NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G:
534 		adv_speed = 100000;
535 	break;
536 	default:
537 		DP_NOTICE(hwfn, false, "Unknown speed\n");
538 		adv_speed = 0;
539 	}
540 	if_link->adv_speed = adv_speed;
541 
542 	if (params.speed.autoneg)
543 		if_link->supported_caps |= QEDE_SUPPORTED_AUTONEG;
544 
545 	if (params.pause.autoneg || params.pause.forced_rx ||
546 	    params.pause.forced_tx)
547 		if_link->supported_caps |= QEDE_SUPPORTED_PAUSE;
548 
549 	if (params.pause.autoneg)
550 		if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
551 
552 	if (params.pause.forced_rx)
553 		if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
554 
555 	if (params.pause.forced_tx)
556 		if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
557 }
558 
559 static void
560 qed_get_current_link(struct ecore_dev *edev, struct qed_link_output *if_link)
561 {
562 	qed_fill_link(&edev->hwfns[0], if_link);
563 
564 #ifdef CONFIG_QED_SRIOV
565 	for_each_hwfn(cdev, i)
566 		qed_inform_vf_link_state(&cdev->hwfns[i]);
567 #endif
568 }
569 
570 static int qed_set_link(struct ecore_dev *edev, struct qed_link_params *params)
571 {
572 	struct ecore_hwfn *hwfn;
573 	struct ecore_ptt *ptt;
574 	struct ecore_mcp_link_params *link_params;
575 	int rc;
576 
577 	if (IS_VF(edev))
578 		return 0;
579 
580 	/* The link should be set only once per PF */
581 	hwfn = &edev->hwfns[0];
582 
583 	ptt = ecore_ptt_acquire(hwfn);
584 	if (!ptt)
585 		return -EBUSY;
586 
587 	link_params = ecore_mcp_get_link_params(hwfn);
588 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
589 		link_params->speed.autoneg = params->autoneg;
590 
591 	if (params->override_flags & QED_LINK_OVERRIDE_PAUSE_CONFIG) {
592 		if (params->pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
593 			link_params->pause.autoneg = true;
594 		else
595 			link_params->pause.autoneg = false;
596 		if (params->pause_config & QED_LINK_PAUSE_RX_ENABLE)
597 			link_params->pause.forced_rx = true;
598 		else
599 			link_params->pause.forced_rx = false;
600 		if (params->pause_config & QED_LINK_PAUSE_TX_ENABLE)
601 			link_params->pause.forced_tx = true;
602 		else
603 			link_params->pause.forced_tx = false;
604 	}
605 
606 	rc = ecore_mcp_set_link(hwfn, ptt, params->link_up);
607 
608 	ecore_ptt_release(hwfn, ptt);
609 
610 	return rc;
611 }
612 
613 void qed_link_update(struct ecore_hwfn *hwfn)
614 {
615 	struct qed_link_output if_link;
616 
617 	qed_fill_link(hwfn, &if_link);
618 }
619 
620 static int qed_drain(struct ecore_dev *edev)
621 {
622 	struct ecore_hwfn *hwfn;
623 	struct ecore_ptt *ptt;
624 	int i, rc;
625 
626 	if (IS_VF(edev))
627 		return 0;
628 
629 	for_each_hwfn(edev, i) {
630 		hwfn = &edev->hwfns[i];
631 		ptt = ecore_ptt_acquire(hwfn);
632 		if (!ptt) {
633 			DP_NOTICE(hwfn, true, "Failed to drain NIG; No PTT\n");
634 			return -EBUSY;
635 		}
636 		rc = ecore_mcp_drain(hwfn, ptt);
637 		if (rc)
638 			return rc;
639 		ecore_ptt_release(hwfn, ptt);
640 	}
641 
642 	return 0;
643 }
644 
645 static int qed_nic_stop(struct ecore_dev *edev)
646 {
647 	int i, rc;
648 
649 	rc = ecore_hw_stop(edev);
650 	for (i = 0; i < edev->num_hwfns; i++) {
651 		struct ecore_hwfn *p_hwfn = &edev->hwfns[i];
652 
653 		if (p_hwfn->b_sp_dpc_enabled)
654 			p_hwfn->b_sp_dpc_enabled = false;
655 	}
656 	return rc;
657 }
658 
659 static int qed_nic_reset(struct ecore_dev *edev)
660 {
661 	int rc;
662 
663 	rc = ecore_hw_reset(edev);
664 	if (rc)
665 		return rc;
666 
667 	ecore_resc_free(edev);
668 
669 	return 0;
670 }
671 
672 static int qed_slowpath_stop(struct ecore_dev *edev)
673 {
674 #ifdef CONFIG_QED_SRIOV
675 	int i;
676 #endif
677 
678 	if (!edev)
679 		return -ENODEV;
680 
681 	if (IS_PF(edev)) {
682 #ifdef CONFIG_ECORE_ZIPPED_FW
683 		qed_free_stream_mem(edev);
684 #endif
685 
686 #ifdef CONFIG_QED_SRIOV
687 		if (IS_QED_ETH_IF(edev))
688 			qed_sriov_disable(edev, true);
689 #endif
690 		qed_nic_stop(edev);
691 	}
692 
693 	qed_nic_reset(edev);
694 	qed_stop_iov_task(edev);
695 
696 	return 0;
697 }
698 
699 static void qed_remove(struct ecore_dev *edev)
700 {
701 	if (!edev)
702 		return;
703 
704 	ecore_hw_remove(edev);
705 }
706 
707 const struct qed_common_ops qed_common_ops_pass = {
708 	INIT_STRUCT_FIELD(probe, &qed_probe),
709 	INIT_STRUCT_FIELD(update_pf_params, &qed_update_pf_params),
710 	INIT_STRUCT_FIELD(slowpath_start, &qed_slowpath_start),
711 	INIT_STRUCT_FIELD(set_id, &qed_set_id),
712 	INIT_STRUCT_FIELD(chain_alloc, &ecore_chain_alloc),
713 	INIT_STRUCT_FIELD(chain_free, &ecore_chain_free),
714 	INIT_STRUCT_FIELD(sb_init, &qed_sb_init),
715 	INIT_STRUCT_FIELD(get_link, &qed_get_current_link),
716 	INIT_STRUCT_FIELD(set_link, &qed_set_link),
717 	INIT_STRUCT_FIELD(drain, &qed_drain),
718 	INIT_STRUCT_FIELD(slowpath_stop, &qed_slowpath_stop),
719 	INIT_STRUCT_FIELD(remove, &qed_remove),
720 };
721