1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 /* QLogic qed NIC Driver
3  * Copyright (c) 2015-2017  QLogic Corporation
4  * Copyright (c) 2019-2020 Marvell International Ltd.
5  */
6 
7 #include <linux/stddef.h>
8 #include <linux/pci.h>
9 #include <linux/kernel.h>
10 #include <linux/slab.h>
11 #include <linux/delay.h>
12 #include <asm/byteorder.h>
13 #include <linux/dma-mapping.h>
14 #include <linux/string.h>
15 #include <linux/module.h>
16 #include <linux/interrupt.h>
17 #include <linux/workqueue.h>
18 #include <linux/ethtool.h>
19 #include <linux/etherdevice.h>
20 #include <linux/vmalloc.h>
21 #include <linux/crash_dump.h>
22 #include <linux/crc32.h>
23 #include <linux/qed/qed_if.h>
24 #include <linux/qed/qed_ll2_if.h>
25 #include <net/devlink.h>
26 #include <linux/phylink.h>
27 
28 #include "qed.h"
29 #include "qed_sriov.h"
30 #include "qed_sp.h"
31 #include "qed_dev_api.h"
32 #include "qed_ll2.h"
33 #include "qed_fcoe.h"
34 #include "qed_iscsi.h"
35 
36 #include "qed_mcp.h"
37 #include "qed_reg_addr.h"
38 #include "qed_hw.h"
39 #include "qed_selftest.h"
40 #include "qed_debug.h"
41 #include "qed_devlink.h"
42 
43 #define QED_ROCE_QPS			(8192)
44 #define QED_ROCE_DPIS			(8)
45 #define QED_RDMA_SRQS                   QED_ROCE_QPS
46 #define QED_NVM_CFG_GET_FLAGS		0xA
47 #define QED_NVM_CFG_GET_PF_FLAGS	0x1A
48 #define QED_NVM_CFG_MAX_ATTRS		50
49 
50 static char version[] =
51 	"QLogic FastLinQ 4xxxx Core Module qed\n";
52 
53 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Core Module");
54 MODULE_LICENSE("GPL");
55 
56 #define FW_FILE_VERSION				\
57 	__stringify(FW_MAJOR_VERSION) "."	\
58 	__stringify(FW_MINOR_VERSION) "."	\
59 	__stringify(FW_REVISION_VERSION) "."	\
60 	__stringify(FW_ENGINEERING_VERSION)
61 
62 #define QED_FW_FILE_NAME	\
63 	"qed/qed_init_values_zipped-" FW_FILE_VERSION ".bin"
64 
65 MODULE_FIRMWARE(QED_FW_FILE_NAME);
66 
67 /* MFW speed capabilities maps */
68 
69 struct qed_mfw_speed_map {
70 	u32		mfw_val;
71 	__ETHTOOL_DECLARE_LINK_MODE_MASK(caps);
72 
73 	const u32	*cap_arr;
74 	u32		arr_size;
75 };
76 
77 #define QED_MFW_SPEED_MAP(type, arr)		\
78 {						\
79 	.mfw_val	= (type),		\
80 	.cap_arr	= (arr),		\
81 	.arr_size	= ARRAY_SIZE(arr),	\
82 }
83 
84 static const u32 qed_mfw_ext_1g[] __initconst = {
85 	ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
86 	ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
87 	ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
88 };
89 
90 static const u32 qed_mfw_ext_10g[] __initconst = {
91 	ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
92 	ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
93 	ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
94 	ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
95 	ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
96 	ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
97 	ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
98 	ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
99 };
100 
101 static const u32 qed_mfw_ext_25g[] __initconst = {
102 	ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
103 	ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
104 	ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
105 };
106 
107 static const u32 qed_mfw_ext_40g[] __initconst = {
108 	ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
109 	ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
110 	ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
111 	ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
112 };
113 
114 static const u32 qed_mfw_ext_50g_base_r[] __initconst = {
115 	ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
116 	ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
117 	ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
118 	ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
119 	ETHTOOL_LINK_MODE_50000baseDR_Full_BIT,
120 };
121 
122 static const u32 qed_mfw_ext_50g_base_r2[] __initconst = {
123 	ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
124 	ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
125 	ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
126 };
127 
128 static const u32 qed_mfw_ext_100g_base_r2[] __initconst = {
129 	ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
130 	ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
131 	ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
132 	ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT,
133 	ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT,
134 };
135 
136 static const u32 qed_mfw_ext_100g_base_r4[] __initconst = {
137 	ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
138 	ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
139 	ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
140 	ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
141 };
142 
143 static struct qed_mfw_speed_map qed_mfw_ext_maps[] __ro_after_init = {
144 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_1G, qed_mfw_ext_1g),
145 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_10G, qed_mfw_ext_10g),
146 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_25G, qed_mfw_ext_25g),
147 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_40G, qed_mfw_ext_40g),
148 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_50G_BASE_R,
149 			  qed_mfw_ext_50g_base_r),
150 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_50G_BASE_R2,
151 			  qed_mfw_ext_50g_base_r2),
152 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_100G_BASE_R2,
153 			  qed_mfw_ext_100g_base_r2),
154 	QED_MFW_SPEED_MAP(ETH_EXT_ADV_SPEED_100G_BASE_R4,
155 			  qed_mfw_ext_100g_base_r4),
156 };
157 
158 static const u32 qed_mfw_legacy_1g[] __initconst = {
159 	ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
160 	ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
161 	ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
162 };
163 
164 static const u32 qed_mfw_legacy_10g[] __initconst = {
165 	ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
166 	ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
167 	ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
168 	ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
169 	ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
170 	ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
171 	ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
172 	ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
173 };
174 
175 static const u32 qed_mfw_legacy_20g[] __initconst = {
176 	ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT,
177 };
178 
179 static const u32 qed_mfw_legacy_25g[] __initconst = {
180 	ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
181 	ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
182 	ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
183 };
184 
185 static const u32 qed_mfw_legacy_40g[] __initconst = {
186 	ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
187 	ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
188 	ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
189 	ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
190 };
191 
192 static const u32 qed_mfw_legacy_50g[] __initconst = {
193 	ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
194 	ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
195 	ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
196 };
197 
198 static const u32 qed_mfw_legacy_bb_100g[] __initconst = {
199 	ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
200 	ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
201 	ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
202 	ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
203 };
204 
205 static struct qed_mfw_speed_map qed_mfw_legacy_maps[] __ro_after_init = {
206 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G,
207 			  qed_mfw_legacy_1g),
208 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G,
209 			  qed_mfw_legacy_10g),
210 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G,
211 			  qed_mfw_legacy_20g),
212 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G,
213 			  qed_mfw_legacy_25g),
214 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G,
215 			  qed_mfw_legacy_40g),
216 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G,
217 			  qed_mfw_legacy_50g),
218 	QED_MFW_SPEED_MAP(NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G,
219 			  qed_mfw_legacy_bb_100g),
220 };
221 
qed_mfw_speed_map_populate(struct qed_mfw_speed_map * map)222 static void __init qed_mfw_speed_map_populate(struct qed_mfw_speed_map *map)
223 {
224 	linkmode_set_bit_array(map->cap_arr, map->arr_size, map->caps);
225 
226 	map->cap_arr = NULL;
227 	map->arr_size = 0;
228 }
229 
qed_mfw_speed_maps_init(void)230 static void __init qed_mfw_speed_maps_init(void)
231 {
232 	u32 i;
233 
234 	for (i = 0; i < ARRAY_SIZE(qed_mfw_ext_maps); i++)
235 		qed_mfw_speed_map_populate(qed_mfw_ext_maps + i);
236 
237 	for (i = 0; i < ARRAY_SIZE(qed_mfw_legacy_maps); i++)
238 		qed_mfw_speed_map_populate(qed_mfw_legacy_maps + i);
239 }
240 
qed_init(void)241 static int __init qed_init(void)
242 {
243 	pr_info("%s", version);
244 
245 	qed_mfw_speed_maps_init();
246 
247 	return 0;
248 }
249 module_init(qed_init);
250 
qed_exit(void)251 static void __exit qed_exit(void)
252 {
253 	/* To prevent marking this module as "permanent" */
254 }
255 module_exit(qed_exit);
256 
qed_free_pci(struct qed_dev * cdev)257 static void qed_free_pci(struct qed_dev *cdev)
258 {
259 	struct pci_dev *pdev = cdev->pdev;
260 
261 	if (cdev->doorbells && cdev->db_size)
262 		iounmap(cdev->doorbells);
263 	if (cdev->regview)
264 		iounmap(cdev->regview);
265 	if (atomic_read(&pdev->enable_cnt) == 1)
266 		pci_release_regions(pdev);
267 
268 	pci_disable_device(pdev);
269 }
270 
271 #define PCI_REVISION_ID_ERROR_VAL	0xff
272 
273 /* Performs PCI initializations as well as initializing PCI-related parameters
274  * in the device structrue. Returns 0 in case of success.
275  */
qed_init_pci(struct qed_dev * cdev,struct pci_dev * pdev)276 static int qed_init_pci(struct qed_dev *cdev, struct pci_dev *pdev)
277 {
278 	u8 rev_id;
279 	int rc;
280 
281 	cdev->pdev = pdev;
282 
283 	rc = pci_enable_device(pdev);
284 	if (rc) {
285 		DP_NOTICE(cdev, "Cannot enable PCI device\n");
286 		goto err0;
287 	}
288 
289 	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
290 		DP_NOTICE(cdev, "No memory region found in bar #0\n");
291 		rc = -EIO;
292 		goto err1;
293 	}
294 
295 	if (IS_PF(cdev) && !(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
296 		DP_NOTICE(cdev, "No memory region found in bar #2\n");
297 		rc = -EIO;
298 		goto err1;
299 	}
300 
301 	if (atomic_read(&pdev->enable_cnt) == 1) {
302 		rc = pci_request_regions(pdev, "qed");
303 		if (rc) {
304 			DP_NOTICE(cdev,
305 				  "Failed to request PCI memory resources\n");
306 			goto err1;
307 		}
308 		pci_set_master(pdev);
309 		pci_save_state(pdev);
310 	}
311 
312 	pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
313 	if (rev_id == PCI_REVISION_ID_ERROR_VAL) {
314 		DP_NOTICE(cdev,
315 			  "Detected PCI device error [rev_id 0x%x]. Probably due to prior indication. Aborting.\n",
316 			  rev_id);
317 		rc = -ENODEV;
318 		goto err2;
319 	}
320 	if (!pci_is_pcie(pdev)) {
321 		DP_NOTICE(cdev, "The bus is not PCI Express\n");
322 		rc = -EIO;
323 		goto err2;
324 	}
325 
326 	cdev->pci_params.pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
327 	if (IS_PF(cdev) && !cdev->pci_params.pm_cap)
328 		DP_NOTICE(cdev, "Cannot find power management capability\n");
329 
330 	rc = dma_set_mask_and_coherent(&cdev->pdev->dev, DMA_BIT_MASK(64));
331 	if (rc) {
332 		DP_NOTICE(cdev, "Can't request DMA addresses\n");
333 		rc = -EIO;
334 		goto err2;
335 	}
336 
337 	cdev->pci_params.mem_start = pci_resource_start(pdev, 0);
338 	cdev->pci_params.mem_end = pci_resource_end(pdev, 0);
339 	cdev->pci_params.irq = pdev->irq;
340 
341 	cdev->regview = pci_ioremap_bar(pdev, 0);
342 	if (!cdev->regview) {
343 		DP_NOTICE(cdev, "Cannot map register space, aborting\n");
344 		rc = -ENOMEM;
345 		goto err2;
346 	}
347 
348 	cdev->db_phys_addr = pci_resource_start(cdev->pdev, 2);
349 	cdev->db_size = pci_resource_len(cdev->pdev, 2);
350 	if (!cdev->db_size) {
351 		if (IS_PF(cdev)) {
352 			DP_NOTICE(cdev, "No Doorbell bar available\n");
353 			return -EINVAL;
354 		} else {
355 			return 0;
356 		}
357 	}
358 
359 	cdev->doorbells = ioremap_wc(cdev->db_phys_addr, cdev->db_size);
360 
361 	if (!cdev->doorbells) {
362 		DP_NOTICE(cdev, "Cannot map doorbell space\n");
363 		return -ENOMEM;
364 	}
365 
366 	return 0;
367 
368 err2:
369 	pci_release_regions(pdev);
370 err1:
371 	pci_disable_device(pdev);
372 err0:
373 	return rc;
374 }
375 
qed_fill_dev_info(struct qed_dev * cdev,struct qed_dev_info * dev_info)376 int qed_fill_dev_info(struct qed_dev *cdev,
377 		      struct qed_dev_info *dev_info)
378 {
379 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
380 	struct qed_hw_info *hw_info = &p_hwfn->hw_info;
381 	struct qed_tunnel_info *tun = &cdev->tunnel;
382 	struct qed_ptt  *ptt;
383 
384 	memset(dev_info, 0, sizeof(struct qed_dev_info));
385 
386 	if (tun->vxlan.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
387 	    tun->vxlan.b_mode_enabled)
388 		dev_info->vxlan_enable = true;
389 
390 	if (tun->l2_gre.b_mode_enabled && tun->ip_gre.b_mode_enabled &&
391 	    tun->l2_gre.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
392 	    tun->ip_gre.tun_cls == QED_TUNN_CLSS_MAC_VLAN)
393 		dev_info->gre_enable = true;
394 
395 	if (tun->l2_geneve.b_mode_enabled && tun->ip_geneve.b_mode_enabled &&
396 	    tun->l2_geneve.tun_cls == QED_TUNN_CLSS_MAC_VLAN &&
397 	    tun->ip_geneve.tun_cls == QED_TUNN_CLSS_MAC_VLAN)
398 		dev_info->geneve_enable = true;
399 
400 	dev_info->num_hwfns = cdev->num_hwfns;
401 	dev_info->pci_mem_start = cdev->pci_params.mem_start;
402 	dev_info->pci_mem_end = cdev->pci_params.mem_end;
403 	dev_info->pci_irq = cdev->pci_params.irq;
404 	dev_info->rdma_supported = QED_IS_RDMA_PERSONALITY(p_hwfn);
405 	dev_info->dev_type = cdev->type;
406 	ether_addr_copy(dev_info->hw_mac, hw_info->hw_mac_addr);
407 
408 	if (IS_PF(cdev)) {
409 		dev_info->fw_major = FW_MAJOR_VERSION;
410 		dev_info->fw_minor = FW_MINOR_VERSION;
411 		dev_info->fw_rev = FW_REVISION_VERSION;
412 		dev_info->fw_eng = FW_ENGINEERING_VERSION;
413 		dev_info->b_inter_pf_switch = test_bit(QED_MF_INTER_PF_SWITCH,
414 						       &cdev->mf_bits);
415 		if (!test_bit(QED_MF_DISABLE_ARFS, &cdev->mf_bits))
416 			dev_info->b_arfs_capable = true;
417 		dev_info->tx_switching = true;
418 
419 		if (hw_info->b_wol_support == QED_WOL_SUPPORT_PME)
420 			dev_info->wol_support = true;
421 
422 		dev_info->smart_an = qed_mcp_is_smart_an_supported(p_hwfn);
423 		dev_info->esl = qed_mcp_is_esl_supported(p_hwfn);
424 		dev_info->abs_pf_id = QED_LEADING_HWFN(cdev)->abs_pf_id;
425 	} else {
426 		qed_vf_get_fw_version(&cdev->hwfns[0], &dev_info->fw_major,
427 				      &dev_info->fw_minor, &dev_info->fw_rev,
428 				      &dev_info->fw_eng);
429 	}
430 
431 	if (IS_PF(cdev)) {
432 		ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
433 		if (ptt) {
434 			qed_mcp_get_mfw_ver(QED_LEADING_HWFN(cdev), ptt,
435 					    &dev_info->mfw_rev, NULL);
436 
437 			qed_mcp_get_mbi_ver(QED_LEADING_HWFN(cdev), ptt,
438 					    &dev_info->mbi_version);
439 
440 			qed_mcp_get_flash_size(QED_LEADING_HWFN(cdev), ptt,
441 					       &dev_info->flash_size);
442 
443 			qed_ptt_release(QED_LEADING_HWFN(cdev), ptt);
444 		}
445 	} else {
446 		qed_mcp_get_mfw_ver(QED_LEADING_HWFN(cdev), NULL,
447 				    &dev_info->mfw_rev, NULL);
448 	}
449 
450 	dev_info->mtu = hw_info->mtu;
451 	cdev->common_dev_info = *dev_info;
452 
453 	return 0;
454 }
455 
qed_free_cdev(struct qed_dev * cdev)456 static void qed_free_cdev(struct qed_dev *cdev)
457 {
458 	kfree((void *)cdev);
459 }
460 
qed_alloc_cdev(struct pci_dev * pdev)461 static struct qed_dev *qed_alloc_cdev(struct pci_dev *pdev)
462 {
463 	struct qed_dev *cdev;
464 
465 	cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
466 	if (!cdev)
467 		return cdev;
468 
469 	qed_init_struct(cdev);
470 
471 	return cdev;
472 }
473 
474 /* Sets the requested power state */
qed_set_power_state(struct qed_dev * cdev,pci_power_t state)475 static int qed_set_power_state(struct qed_dev *cdev, pci_power_t state)
476 {
477 	if (!cdev)
478 		return -ENODEV;
479 
480 	DP_VERBOSE(cdev, NETIF_MSG_DRV, "Omitting Power state change\n");
481 	return 0;
482 }
483 
484 /* probing */
qed_probe(struct pci_dev * pdev,struct qed_probe_params * params)485 static struct qed_dev *qed_probe(struct pci_dev *pdev,
486 				 struct qed_probe_params *params)
487 {
488 	struct qed_dev *cdev;
489 	int rc;
490 
491 	cdev = qed_alloc_cdev(pdev);
492 	if (!cdev)
493 		goto err0;
494 
495 	cdev->drv_type = DRV_ID_DRV_TYPE_LINUX;
496 	cdev->protocol = params->protocol;
497 
498 	if (params->is_vf)
499 		cdev->b_is_vf = true;
500 
501 	qed_init_dp(cdev, params->dp_module, params->dp_level);
502 
503 	cdev->recov_in_prog = params->recov_in_prog;
504 
505 	rc = qed_init_pci(cdev, pdev);
506 	if (rc) {
507 		DP_ERR(cdev, "init pci failed\n");
508 		goto err1;
509 	}
510 	DP_INFO(cdev, "PCI init completed successfully\n");
511 
512 	rc = qed_hw_prepare(cdev, QED_PCI_DEFAULT);
513 	if (rc) {
514 		DP_ERR(cdev, "hw prepare failed\n");
515 		goto err2;
516 	}
517 
518 	DP_INFO(cdev, "%s completed successfully\n", __func__);
519 
520 	return cdev;
521 
522 err2:
523 	qed_free_pci(cdev);
524 err1:
525 	qed_free_cdev(cdev);
526 err0:
527 	return NULL;
528 }
529 
qed_remove(struct qed_dev * cdev)530 static void qed_remove(struct qed_dev *cdev)
531 {
532 	if (!cdev)
533 		return;
534 
535 	qed_hw_remove(cdev);
536 
537 	qed_free_pci(cdev);
538 
539 	qed_set_power_state(cdev, PCI_D3hot);
540 
541 	qed_free_cdev(cdev);
542 }
543 
qed_disable_msix(struct qed_dev * cdev)544 static void qed_disable_msix(struct qed_dev *cdev)
545 {
546 	if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
547 		pci_disable_msix(cdev->pdev);
548 		kfree(cdev->int_params.msix_table);
549 	} else if (cdev->int_params.out.int_mode == QED_INT_MODE_MSI) {
550 		pci_disable_msi(cdev->pdev);
551 	}
552 
553 	memset(&cdev->int_params.out, 0, sizeof(struct qed_int_param));
554 }
555 
qed_enable_msix(struct qed_dev * cdev,struct qed_int_params * int_params)556 static int qed_enable_msix(struct qed_dev *cdev,
557 			   struct qed_int_params *int_params)
558 {
559 	int i, rc, cnt;
560 
561 	cnt = int_params->in.num_vectors;
562 
563 	for (i = 0; i < cnt; i++)
564 		int_params->msix_table[i].entry = i;
565 
566 	rc = pci_enable_msix_range(cdev->pdev, int_params->msix_table,
567 				   int_params->in.min_msix_cnt, cnt);
568 	if (rc < cnt && rc >= int_params->in.min_msix_cnt &&
569 	    (rc % cdev->num_hwfns)) {
570 		pci_disable_msix(cdev->pdev);
571 
572 		/* If fastpath is initialized, we need at least one interrupt
573 		 * per hwfn [and the slow path interrupts]. New requested number
574 		 * should be a multiple of the number of hwfns.
575 		 */
576 		cnt = (rc / cdev->num_hwfns) * cdev->num_hwfns;
577 		DP_NOTICE(cdev,
578 			  "Trying to enable MSI-X with less vectors (%d out of %d)\n",
579 			  cnt, int_params->in.num_vectors);
580 		rc = pci_enable_msix_exact(cdev->pdev, int_params->msix_table,
581 					   cnt);
582 		if (!rc)
583 			rc = cnt;
584 	}
585 
586 	/* For VFs, we should return with an error in case we didn't get the
587 	 * exact number of msix vectors as we requested.
588 	 * Not doing that will lead to a crash when starting queues for
589 	 * this VF.
590 	 */
591 	if ((IS_PF(cdev) && rc > 0) || (IS_VF(cdev) && rc == cnt)) {
592 		/* MSI-x configuration was achieved */
593 		int_params->out.int_mode = QED_INT_MODE_MSIX;
594 		int_params->out.num_vectors = rc;
595 		rc = 0;
596 	} else {
597 		DP_NOTICE(cdev,
598 			  "Failed to enable MSI-X [Requested %d vectors][rc %d]\n",
599 			  cnt, rc);
600 	}
601 
602 	return rc;
603 }
604 
605 /* This function outputs the int mode and the number of enabled msix vector */
qed_set_int_mode(struct qed_dev * cdev,bool force_mode)606 static int qed_set_int_mode(struct qed_dev *cdev, bool force_mode)
607 {
608 	struct qed_int_params *int_params = &cdev->int_params;
609 	struct msix_entry *tbl;
610 	int rc = 0, cnt;
611 
612 	switch (int_params->in.int_mode) {
613 	case QED_INT_MODE_MSIX:
614 		/* Allocate MSIX table */
615 		cnt = int_params->in.num_vectors;
616 		int_params->msix_table = kcalloc(cnt, sizeof(*tbl), GFP_KERNEL);
617 		if (!int_params->msix_table) {
618 			rc = -ENOMEM;
619 			goto out;
620 		}
621 
622 		/* Enable MSIX */
623 		rc = qed_enable_msix(cdev, int_params);
624 		if (!rc)
625 			goto out;
626 
627 		DP_NOTICE(cdev, "Failed to enable MSI-X\n");
628 		kfree(int_params->msix_table);
629 		if (force_mode)
630 			goto out;
631 		fallthrough;
632 
633 	case QED_INT_MODE_MSI:
634 		if (cdev->num_hwfns == 1) {
635 			rc = pci_enable_msi(cdev->pdev);
636 			if (!rc) {
637 				int_params->out.int_mode = QED_INT_MODE_MSI;
638 				goto out;
639 			}
640 
641 			DP_NOTICE(cdev, "Failed to enable MSI\n");
642 			if (force_mode)
643 				goto out;
644 		}
645 		fallthrough;
646 
647 	case QED_INT_MODE_INTA:
648 			int_params->out.int_mode = QED_INT_MODE_INTA;
649 			rc = 0;
650 			goto out;
651 	default:
652 		DP_NOTICE(cdev, "Unknown int_mode value %d\n",
653 			  int_params->in.int_mode);
654 		rc = -EINVAL;
655 	}
656 
657 out:
658 	if (!rc)
659 		DP_INFO(cdev, "Using %s interrupts\n",
660 			int_params->out.int_mode == QED_INT_MODE_INTA ?
661 			"INTa" : int_params->out.int_mode == QED_INT_MODE_MSI ?
662 			"MSI" : "MSIX");
663 	cdev->int_coalescing_mode = QED_COAL_MODE_ENABLE;
664 
665 	return rc;
666 }
667 
qed_simd_handler_config(struct qed_dev * cdev,void * token,int index,void (* handler)(void *))668 static void qed_simd_handler_config(struct qed_dev *cdev, void *token,
669 				    int index, void(*handler)(void *))
670 {
671 	struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
672 	int relative_idx = index / cdev->num_hwfns;
673 
674 	hwfn->simd_proto_handler[relative_idx].func = handler;
675 	hwfn->simd_proto_handler[relative_idx].token = token;
676 }
677 
qed_simd_handler_clean(struct qed_dev * cdev,int index)678 static void qed_simd_handler_clean(struct qed_dev *cdev, int index)
679 {
680 	struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
681 	int relative_idx = index / cdev->num_hwfns;
682 
683 	memset(&hwfn->simd_proto_handler[relative_idx], 0,
684 	       sizeof(struct qed_simd_fp_handler));
685 }
686 
qed_msix_sp_int(int irq,void * tasklet)687 static irqreturn_t qed_msix_sp_int(int irq, void *tasklet)
688 {
689 	tasklet_schedule((struct tasklet_struct *)tasklet);
690 	return IRQ_HANDLED;
691 }
692 
qed_single_int(int irq,void * dev_instance)693 static irqreturn_t qed_single_int(int irq, void *dev_instance)
694 {
695 	struct qed_dev *cdev = (struct qed_dev *)dev_instance;
696 	struct qed_hwfn *hwfn;
697 	irqreturn_t rc = IRQ_NONE;
698 	u64 status;
699 	int i, j;
700 
701 	for (i = 0; i < cdev->num_hwfns; i++) {
702 		status = qed_int_igu_read_sisr_reg(&cdev->hwfns[i]);
703 
704 		if (!status)
705 			continue;
706 
707 		hwfn = &cdev->hwfns[i];
708 
709 		/* Slowpath interrupt */
710 		if (unlikely(status & 0x1)) {
711 			tasklet_schedule(&hwfn->sp_dpc);
712 			status &= ~0x1;
713 			rc = IRQ_HANDLED;
714 		}
715 
716 		/* Fastpath interrupts */
717 		for (j = 0; j < 64; j++) {
718 			if ((0x2ULL << j) & status) {
719 				struct qed_simd_fp_handler *p_handler =
720 					&hwfn->simd_proto_handler[j];
721 
722 				if (p_handler->func)
723 					p_handler->func(p_handler->token);
724 				else
725 					DP_NOTICE(hwfn,
726 						  "Not calling fastpath handler as it is NULL [handler #%d, status 0x%llx]\n",
727 						  j, status);
728 
729 				status &= ~(0x2ULL << j);
730 				rc = IRQ_HANDLED;
731 			}
732 		}
733 
734 		if (unlikely(status))
735 			DP_VERBOSE(hwfn, NETIF_MSG_INTR,
736 				   "got an unknown interrupt status 0x%llx\n",
737 				   status);
738 	}
739 
740 	return rc;
741 }
742 
qed_slowpath_irq_req(struct qed_hwfn * hwfn)743 int qed_slowpath_irq_req(struct qed_hwfn *hwfn)
744 {
745 	struct qed_dev *cdev = hwfn->cdev;
746 	u32 int_mode;
747 	int rc = 0;
748 	u8 id;
749 
750 	int_mode = cdev->int_params.out.int_mode;
751 	if (int_mode == QED_INT_MODE_MSIX) {
752 		id = hwfn->my_id;
753 		snprintf(hwfn->name, NAME_SIZE, "sp-%d-%02x:%02x.%02x",
754 			 id, cdev->pdev->bus->number,
755 			 PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
756 		rc = request_irq(cdev->int_params.msix_table[id].vector,
757 				 qed_msix_sp_int, 0, hwfn->name, &hwfn->sp_dpc);
758 	} else {
759 		unsigned long flags = 0;
760 
761 		snprintf(cdev->name, NAME_SIZE, "%02x:%02x.%02x",
762 			 cdev->pdev->bus->number, PCI_SLOT(cdev->pdev->devfn),
763 			 PCI_FUNC(cdev->pdev->devfn));
764 
765 		if (cdev->int_params.out.int_mode == QED_INT_MODE_INTA)
766 			flags |= IRQF_SHARED;
767 
768 		rc = request_irq(cdev->pdev->irq, qed_single_int,
769 				 flags, cdev->name, cdev);
770 	}
771 
772 	if (rc)
773 		DP_NOTICE(cdev, "request_irq failed, rc = %d\n", rc);
774 	else
775 		DP_VERBOSE(hwfn, (NETIF_MSG_INTR | QED_MSG_SP),
776 			   "Requested slowpath %s\n",
777 			   (int_mode == QED_INT_MODE_MSIX) ? "MSI-X" : "IRQ");
778 
779 	return rc;
780 }
781 
qed_slowpath_tasklet_flush(struct qed_hwfn * p_hwfn)782 static void qed_slowpath_tasklet_flush(struct qed_hwfn *p_hwfn)
783 {
784 	/* Calling the disable function will make sure that any
785 	 * currently-running function is completed. The following call to the
786 	 * enable function makes this sequence a flush-like operation.
787 	 */
788 	if (p_hwfn->b_sp_dpc_enabled) {
789 		tasklet_disable(&p_hwfn->sp_dpc);
790 		tasklet_enable(&p_hwfn->sp_dpc);
791 	}
792 }
793 
qed_slowpath_irq_sync(struct qed_hwfn * p_hwfn)794 void qed_slowpath_irq_sync(struct qed_hwfn *p_hwfn)
795 {
796 	struct qed_dev *cdev = p_hwfn->cdev;
797 	u8 id = p_hwfn->my_id;
798 	u32 int_mode;
799 
800 	int_mode = cdev->int_params.out.int_mode;
801 	if (int_mode == QED_INT_MODE_MSIX)
802 		synchronize_irq(cdev->int_params.msix_table[id].vector);
803 	else
804 		synchronize_irq(cdev->pdev->irq);
805 
806 	qed_slowpath_tasklet_flush(p_hwfn);
807 }
808 
qed_slowpath_irq_free(struct qed_dev * cdev)809 static void qed_slowpath_irq_free(struct qed_dev *cdev)
810 {
811 	int i;
812 
813 	if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
814 		for_each_hwfn(cdev, i) {
815 			if (!cdev->hwfns[i].b_int_requested)
816 				break;
817 			free_irq(cdev->int_params.msix_table[i].vector,
818 				 &cdev->hwfns[i].sp_dpc);
819 		}
820 	} else {
821 		if (QED_LEADING_HWFN(cdev)->b_int_requested)
822 			free_irq(cdev->pdev->irq, cdev);
823 	}
824 	qed_int_disable_post_isr_release(cdev);
825 }
826 
qed_nic_stop(struct qed_dev * cdev)827 static int qed_nic_stop(struct qed_dev *cdev)
828 {
829 	int i, rc;
830 
831 	rc = qed_hw_stop(cdev);
832 
833 	for (i = 0; i < cdev->num_hwfns; i++) {
834 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
835 
836 		if (p_hwfn->b_sp_dpc_enabled) {
837 			tasklet_disable(&p_hwfn->sp_dpc);
838 			p_hwfn->b_sp_dpc_enabled = false;
839 			DP_VERBOSE(cdev, NETIF_MSG_IFDOWN,
840 				   "Disabled sp tasklet [hwfn %d] at %p\n",
841 				   i, &p_hwfn->sp_dpc);
842 		}
843 	}
844 
845 	qed_dbg_pf_exit(cdev);
846 
847 	return rc;
848 }
849 
qed_nic_setup(struct qed_dev * cdev)850 static int qed_nic_setup(struct qed_dev *cdev)
851 {
852 	int rc, i;
853 
854 	/* Determine if interface is going to require LL2 */
855 	if (QED_LEADING_HWFN(cdev)->hw_info.personality != QED_PCI_ETH) {
856 		for (i = 0; i < cdev->num_hwfns; i++) {
857 			struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
858 
859 			p_hwfn->using_ll2 = true;
860 		}
861 	}
862 
863 	rc = qed_resc_alloc(cdev);
864 	if (rc)
865 		return rc;
866 
867 	DP_INFO(cdev, "Allocated qed resources\n");
868 
869 	qed_resc_setup(cdev);
870 
871 	return rc;
872 }
873 
qed_set_int_fp(struct qed_dev * cdev,u16 cnt)874 static int qed_set_int_fp(struct qed_dev *cdev, u16 cnt)
875 {
876 	int limit = 0;
877 
878 	/* Mark the fastpath as free/used */
879 	cdev->int_params.fp_initialized = cnt ? true : false;
880 
881 	if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX)
882 		limit = cdev->num_hwfns * 63;
883 	else if (cdev->int_params.fp_msix_cnt)
884 		limit = cdev->int_params.fp_msix_cnt;
885 
886 	if (!limit)
887 		return -ENOMEM;
888 
889 	return min_t(int, cnt, limit);
890 }
891 
qed_get_int_fp(struct qed_dev * cdev,struct qed_int_info * info)892 static int qed_get_int_fp(struct qed_dev *cdev, struct qed_int_info *info)
893 {
894 	memset(info, 0, sizeof(struct qed_int_info));
895 
896 	if (!cdev->int_params.fp_initialized) {
897 		DP_INFO(cdev,
898 			"Protocol driver requested interrupt information, but its support is not yet configured\n");
899 		return -EINVAL;
900 	}
901 
902 	/* Need to expose only MSI-X information; Single IRQ is handled solely
903 	 * by qed.
904 	 */
905 	if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
906 		int msix_base = cdev->int_params.fp_msix_base;
907 
908 		info->msix_cnt = cdev->int_params.fp_msix_cnt;
909 		info->msix = &cdev->int_params.msix_table[msix_base];
910 	}
911 
912 	return 0;
913 }
914 
qed_slowpath_setup_int(struct qed_dev * cdev,enum qed_int_mode int_mode)915 static int qed_slowpath_setup_int(struct qed_dev *cdev,
916 				  enum qed_int_mode int_mode)
917 {
918 	struct qed_sb_cnt_info sb_cnt_info;
919 	int num_l2_queues = 0;
920 	int rc;
921 	int i;
922 
923 	if ((int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
924 		DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
925 		return -EINVAL;
926 	}
927 
928 	memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
929 	cdev->int_params.in.int_mode = int_mode;
930 	for_each_hwfn(cdev, i) {
931 		memset(&sb_cnt_info, 0, sizeof(sb_cnt_info));
932 		qed_int_get_num_sbs(&cdev->hwfns[i], &sb_cnt_info);
933 		cdev->int_params.in.num_vectors += sb_cnt_info.cnt;
934 		cdev->int_params.in.num_vectors++; /* slowpath */
935 	}
936 
937 	/* We want a minimum of one slowpath and one fastpath vector per hwfn */
938 	cdev->int_params.in.min_msix_cnt = cdev->num_hwfns * 2;
939 
940 	if (is_kdump_kernel()) {
941 		DP_INFO(cdev,
942 			"Kdump kernel: Limit the max number of requested MSI-X vectors to %hd\n",
943 			cdev->int_params.in.min_msix_cnt);
944 		cdev->int_params.in.num_vectors =
945 			cdev->int_params.in.min_msix_cnt;
946 	}
947 
948 	rc = qed_set_int_mode(cdev, false);
949 	if (rc)  {
950 		DP_ERR(cdev, "%s ERR\n", __func__);
951 		return rc;
952 	}
953 
954 	cdev->int_params.fp_msix_base = cdev->num_hwfns;
955 	cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors -
956 				       cdev->num_hwfns;
957 
958 	if (!IS_ENABLED(CONFIG_QED_RDMA) ||
959 	    !QED_IS_RDMA_PERSONALITY(QED_LEADING_HWFN(cdev)))
960 		return 0;
961 
962 	for_each_hwfn(cdev, i)
963 		num_l2_queues += FEAT_NUM(&cdev->hwfns[i], QED_PF_L2_QUE);
964 
965 	DP_VERBOSE(cdev, QED_MSG_RDMA,
966 		   "cdev->int_params.fp_msix_cnt=%d num_l2_queues=%d\n",
967 		   cdev->int_params.fp_msix_cnt, num_l2_queues);
968 
969 	if (cdev->int_params.fp_msix_cnt > num_l2_queues) {
970 		cdev->int_params.rdma_msix_cnt =
971 			(cdev->int_params.fp_msix_cnt - num_l2_queues)
972 			/ cdev->num_hwfns;
973 		cdev->int_params.rdma_msix_base =
974 			cdev->int_params.fp_msix_base + num_l2_queues;
975 		cdev->int_params.fp_msix_cnt = num_l2_queues;
976 	} else {
977 		cdev->int_params.rdma_msix_cnt = 0;
978 	}
979 
980 	DP_VERBOSE(cdev, QED_MSG_RDMA, "roce_msix_cnt=%d roce_msix_base=%d\n",
981 		   cdev->int_params.rdma_msix_cnt,
982 		   cdev->int_params.rdma_msix_base);
983 
984 	return 0;
985 }
986 
qed_slowpath_vf_setup_int(struct qed_dev * cdev)987 static int qed_slowpath_vf_setup_int(struct qed_dev *cdev)
988 {
989 	int rc;
990 
991 	memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
992 	cdev->int_params.in.int_mode = QED_INT_MODE_MSIX;
993 
994 	qed_vf_get_num_rxqs(QED_LEADING_HWFN(cdev),
995 			    &cdev->int_params.in.num_vectors);
996 	if (cdev->num_hwfns > 1) {
997 		u8 vectors = 0;
998 
999 		qed_vf_get_num_rxqs(&cdev->hwfns[1], &vectors);
1000 		cdev->int_params.in.num_vectors += vectors;
1001 	}
1002 
1003 	/* We want a minimum of one fastpath vector per vf hwfn */
1004 	cdev->int_params.in.min_msix_cnt = cdev->num_hwfns;
1005 
1006 	rc = qed_set_int_mode(cdev, true);
1007 	if (rc)
1008 		return rc;
1009 
1010 	cdev->int_params.fp_msix_base = 0;
1011 	cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors;
1012 
1013 	return 0;
1014 }
1015 
qed_unzip_data(struct qed_hwfn * p_hwfn,u32 input_len,u8 * input_buf,u32 max_size,u8 * unzip_buf)1016 u32 qed_unzip_data(struct qed_hwfn *p_hwfn, u32 input_len,
1017 		   u8 *input_buf, u32 max_size, u8 *unzip_buf)
1018 {
1019 	int rc;
1020 
1021 	p_hwfn->stream->next_in = input_buf;
1022 	p_hwfn->stream->avail_in = input_len;
1023 	p_hwfn->stream->next_out = unzip_buf;
1024 	p_hwfn->stream->avail_out = max_size;
1025 
1026 	rc = zlib_inflateInit2(p_hwfn->stream, MAX_WBITS);
1027 
1028 	if (rc != Z_OK) {
1029 		DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "zlib init failed, rc = %d\n",
1030 			   rc);
1031 		return 0;
1032 	}
1033 
1034 	rc = zlib_inflate(p_hwfn->stream, Z_FINISH);
1035 	zlib_inflateEnd(p_hwfn->stream);
1036 
1037 	if (rc != Z_OK && rc != Z_STREAM_END) {
1038 		DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "FW unzip error: %s, rc=%d\n",
1039 			   p_hwfn->stream->msg, rc);
1040 		return 0;
1041 	}
1042 
1043 	return p_hwfn->stream->total_out / 4;
1044 }
1045 
qed_alloc_stream_mem(struct qed_dev * cdev)1046 static int qed_alloc_stream_mem(struct qed_dev *cdev)
1047 {
1048 	int i;
1049 	void *workspace;
1050 
1051 	for_each_hwfn(cdev, i) {
1052 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1053 
1054 		p_hwfn->stream = kzalloc(sizeof(*p_hwfn->stream), GFP_KERNEL);
1055 		if (!p_hwfn->stream)
1056 			return -ENOMEM;
1057 
1058 		workspace = vzalloc(zlib_inflate_workspacesize());
1059 		if (!workspace)
1060 			return -ENOMEM;
1061 		p_hwfn->stream->workspace = workspace;
1062 	}
1063 
1064 	return 0;
1065 }
1066 
qed_free_stream_mem(struct qed_dev * cdev)1067 static void qed_free_stream_mem(struct qed_dev *cdev)
1068 {
1069 	int i;
1070 
1071 	for_each_hwfn(cdev, i) {
1072 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1073 
1074 		if (!p_hwfn->stream)
1075 			return;
1076 
1077 		vfree(p_hwfn->stream->workspace);
1078 		kfree(p_hwfn->stream);
1079 	}
1080 }
1081 
qed_update_pf_params(struct qed_dev * cdev,struct qed_pf_params * params)1082 static void qed_update_pf_params(struct qed_dev *cdev,
1083 				 struct qed_pf_params *params)
1084 {
1085 	int i;
1086 
1087 	if (IS_ENABLED(CONFIG_QED_RDMA)) {
1088 		params->rdma_pf_params.num_qps = QED_ROCE_QPS;
1089 		params->rdma_pf_params.min_dpis = QED_ROCE_DPIS;
1090 		params->rdma_pf_params.num_srqs = QED_RDMA_SRQS;
1091 		/* divide by 3 the MRs to avoid MF ILT overflow */
1092 		params->rdma_pf_params.gl_pi = QED_ROCE_PROTOCOL_INDEX;
1093 	}
1094 
1095 	if (cdev->num_hwfns > 1 || IS_VF(cdev))
1096 		params->eth_pf_params.num_arfs_filters = 0;
1097 
1098 	/* In case we might support RDMA, don't allow qede to be greedy
1099 	 * with the L2 contexts. Allow for 64 queues [rx, tx cos, xdp]
1100 	 * per hwfn.
1101 	 */
1102 	if (QED_IS_RDMA_PERSONALITY(QED_LEADING_HWFN(cdev))) {
1103 		u16 *num_cons;
1104 
1105 		num_cons = &params->eth_pf_params.num_cons;
1106 		*num_cons = min_t(u16, *num_cons, QED_MAX_L2_CONS);
1107 	}
1108 
1109 	for (i = 0; i < cdev->num_hwfns; i++) {
1110 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1111 
1112 		p_hwfn->pf_params = *params;
1113 	}
1114 }
1115 
1116 #define QED_PERIODIC_DB_REC_COUNT		10
1117 #define QED_PERIODIC_DB_REC_INTERVAL_MS		100
1118 #define QED_PERIODIC_DB_REC_INTERVAL \
1119 	msecs_to_jiffies(QED_PERIODIC_DB_REC_INTERVAL_MS)
1120 
qed_slowpath_delayed_work(struct qed_hwfn * hwfn,enum qed_slowpath_wq_flag wq_flag,unsigned long delay)1121 static int qed_slowpath_delayed_work(struct qed_hwfn *hwfn,
1122 				     enum qed_slowpath_wq_flag wq_flag,
1123 				     unsigned long delay)
1124 {
1125 	if (!hwfn->slowpath_wq_active)
1126 		return -EINVAL;
1127 
1128 	/* Memory barrier for setting atomic bit */
1129 	smp_mb__before_atomic();
1130 	set_bit(wq_flag, &hwfn->slowpath_task_flags);
1131 	/* Memory barrier after setting atomic bit */
1132 	smp_mb__after_atomic();
1133 	queue_delayed_work(hwfn->slowpath_wq, &hwfn->slowpath_task, delay);
1134 
1135 	return 0;
1136 }
1137 
qed_periodic_db_rec_start(struct qed_hwfn * p_hwfn)1138 void qed_periodic_db_rec_start(struct qed_hwfn *p_hwfn)
1139 {
1140 	/* Reset periodic Doorbell Recovery counter */
1141 	p_hwfn->periodic_db_rec_count = QED_PERIODIC_DB_REC_COUNT;
1142 
1143 	/* Don't schedule periodic Doorbell Recovery if already scheduled */
1144 	if (test_bit(QED_SLOWPATH_PERIODIC_DB_REC,
1145 		     &p_hwfn->slowpath_task_flags))
1146 		return;
1147 
1148 	qed_slowpath_delayed_work(p_hwfn, QED_SLOWPATH_PERIODIC_DB_REC,
1149 				  QED_PERIODIC_DB_REC_INTERVAL);
1150 }
1151 
qed_slowpath_wq_stop(struct qed_dev * cdev)1152 static void qed_slowpath_wq_stop(struct qed_dev *cdev)
1153 {
1154 	int i;
1155 
1156 	if (IS_VF(cdev))
1157 		return;
1158 
1159 	for_each_hwfn(cdev, i) {
1160 		if (!cdev->hwfns[i].slowpath_wq)
1161 			continue;
1162 
1163 		/* Stop queuing new delayed works */
1164 		cdev->hwfns[i].slowpath_wq_active = false;
1165 
1166 		cancel_delayed_work(&cdev->hwfns[i].slowpath_task);
1167 		destroy_workqueue(cdev->hwfns[i].slowpath_wq);
1168 	}
1169 }
1170 
qed_slowpath_task(struct work_struct * work)1171 static void qed_slowpath_task(struct work_struct *work)
1172 {
1173 	struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
1174 					     slowpath_task.work);
1175 	struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
1176 
1177 	if (!ptt) {
1178 		if (hwfn->slowpath_wq_active)
1179 			queue_delayed_work(hwfn->slowpath_wq,
1180 					   &hwfn->slowpath_task, 0);
1181 
1182 		return;
1183 	}
1184 
1185 	if (test_and_clear_bit(QED_SLOWPATH_MFW_TLV_REQ,
1186 			       &hwfn->slowpath_task_flags))
1187 		qed_mfw_process_tlv_req(hwfn, ptt);
1188 
1189 	if (test_and_clear_bit(QED_SLOWPATH_PERIODIC_DB_REC,
1190 			       &hwfn->slowpath_task_flags)) {
1191 		/* skip qed_db_rec_handler during recovery/unload */
1192 		if (hwfn->cdev->recov_in_prog || !hwfn->slowpath_wq_active)
1193 			goto out;
1194 
1195 		qed_db_rec_handler(hwfn, ptt);
1196 		if (hwfn->periodic_db_rec_count--)
1197 			qed_slowpath_delayed_work(hwfn,
1198 						  QED_SLOWPATH_PERIODIC_DB_REC,
1199 						  QED_PERIODIC_DB_REC_INTERVAL);
1200 	}
1201 
1202 out:
1203 	qed_ptt_release(hwfn, ptt);
1204 }
1205 
qed_slowpath_wq_start(struct qed_dev * cdev)1206 static int qed_slowpath_wq_start(struct qed_dev *cdev)
1207 {
1208 	struct qed_hwfn *hwfn;
1209 	char name[NAME_SIZE];
1210 	int i;
1211 
1212 	if (IS_VF(cdev))
1213 		return 0;
1214 
1215 	for_each_hwfn(cdev, i) {
1216 		hwfn = &cdev->hwfns[i];
1217 
1218 		snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x",
1219 			 cdev->pdev->bus->number,
1220 			 PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
1221 
1222 		hwfn->slowpath_wq = alloc_workqueue(name, 0, 0);
1223 		if (!hwfn->slowpath_wq) {
1224 			DP_NOTICE(hwfn, "Cannot create slowpath workqueue\n");
1225 			return -ENOMEM;
1226 		}
1227 
1228 		INIT_DELAYED_WORK(&hwfn->slowpath_task, qed_slowpath_task);
1229 		hwfn->slowpath_wq_active = true;
1230 	}
1231 
1232 	return 0;
1233 }
1234 
qed_slowpath_start(struct qed_dev * cdev,struct qed_slowpath_params * params)1235 static int qed_slowpath_start(struct qed_dev *cdev,
1236 			      struct qed_slowpath_params *params)
1237 {
1238 	struct qed_drv_load_params drv_load_params;
1239 	struct qed_hw_init_params hw_init_params;
1240 	struct qed_mcp_drv_version drv_version;
1241 	struct qed_tunnel_info tunn_info;
1242 	const u8 *data = NULL;
1243 	struct qed_hwfn *hwfn;
1244 	struct qed_ptt *p_ptt;
1245 	int rc = -EINVAL;
1246 
1247 	if (qed_iov_wq_start(cdev))
1248 		goto err;
1249 
1250 	if (qed_slowpath_wq_start(cdev))
1251 		goto err;
1252 
1253 	if (IS_PF(cdev)) {
1254 		rc = request_firmware(&cdev->firmware, QED_FW_FILE_NAME,
1255 				      &cdev->pdev->dev);
1256 		if (rc) {
1257 			DP_NOTICE(cdev,
1258 				  "Failed to find fw file - /lib/firmware/%s\n",
1259 				  QED_FW_FILE_NAME);
1260 			goto err;
1261 		}
1262 
1263 		if (cdev->num_hwfns == 1) {
1264 			p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
1265 			if (p_ptt) {
1266 				QED_LEADING_HWFN(cdev)->p_arfs_ptt = p_ptt;
1267 			} else {
1268 				DP_NOTICE(cdev,
1269 					  "Failed to acquire PTT for aRFS\n");
1270 				rc = -EINVAL;
1271 				goto err;
1272 			}
1273 		}
1274 	}
1275 
1276 	cdev->rx_coalesce_usecs = QED_DEFAULT_RX_USECS;
1277 	rc = qed_nic_setup(cdev);
1278 	if (rc)
1279 		goto err;
1280 
1281 	if (IS_PF(cdev))
1282 		rc = qed_slowpath_setup_int(cdev, params->int_mode);
1283 	else
1284 		rc = qed_slowpath_vf_setup_int(cdev);
1285 	if (rc)
1286 		goto err1;
1287 
1288 	if (IS_PF(cdev)) {
1289 		/* Allocate stream for unzipping */
1290 		rc = qed_alloc_stream_mem(cdev);
1291 		if (rc)
1292 			goto err2;
1293 
1294 		/* First Dword used to differentiate between various sources */
1295 		data = cdev->firmware->data + sizeof(u32);
1296 
1297 		qed_dbg_pf_init(cdev);
1298 	}
1299 
1300 	/* Start the slowpath */
1301 	memset(&hw_init_params, 0, sizeof(hw_init_params));
1302 	memset(&tunn_info, 0, sizeof(tunn_info));
1303 	tunn_info.vxlan.b_mode_enabled = true;
1304 	tunn_info.l2_gre.b_mode_enabled = true;
1305 	tunn_info.ip_gre.b_mode_enabled = true;
1306 	tunn_info.l2_geneve.b_mode_enabled = true;
1307 	tunn_info.ip_geneve.b_mode_enabled = true;
1308 	tunn_info.vxlan.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1309 	tunn_info.l2_gre.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1310 	tunn_info.ip_gre.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1311 	tunn_info.l2_geneve.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1312 	tunn_info.ip_geneve.tun_cls = QED_TUNN_CLSS_MAC_VLAN;
1313 	hw_init_params.p_tunn = &tunn_info;
1314 	hw_init_params.b_hw_start = true;
1315 	hw_init_params.int_mode = cdev->int_params.out.int_mode;
1316 	hw_init_params.allow_npar_tx_switch = true;
1317 	hw_init_params.bin_fw_data = data;
1318 
1319 	memset(&drv_load_params, 0, sizeof(drv_load_params));
1320 	drv_load_params.is_crash_kernel = is_kdump_kernel();
1321 	drv_load_params.mfw_timeout_val = QED_LOAD_REQ_LOCK_TO_DEFAULT;
1322 	drv_load_params.avoid_eng_reset = false;
1323 	drv_load_params.override_force_load = QED_OVERRIDE_FORCE_LOAD_NONE;
1324 	hw_init_params.p_drv_load_params = &drv_load_params;
1325 
1326 	rc = qed_hw_init(cdev, &hw_init_params);
1327 	if (rc)
1328 		goto err2;
1329 
1330 	DP_INFO(cdev,
1331 		"HW initialization and function start completed successfully\n");
1332 
1333 	if (IS_PF(cdev)) {
1334 		cdev->tunn_feature_mask = (BIT(QED_MODE_VXLAN_TUNN) |
1335 					   BIT(QED_MODE_L2GENEVE_TUNN) |
1336 					   BIT(QED_MODE_IPGENEVE_TUNN) |
1337 					   BIT(QED_MODE_L2GRE_TUNN) |
1338 					   BIT(QED_MODE_IPGRE_TUNN));
1339 	}
1340 
1341 	/* Allocate LL2 interface if needed */
1342 	if (QED_LEADING_HWFN(cdev)->using_ll2) {
1343 		rc = qed_ll2_alloc_if(cdev);
1344 		if (rc)
1345 			goto err3;
1346 	}
1347 	if (IS_PF(cdev)) {
1348 		hwfn = QED_LEADING_HWFN(cdev);
1349 		drv_version.version = (params->drv_major << 24) |
1350 				      (params->drv_minor << 16) |
1351 				      (params->drv_rev << 8) |
1352 				      (params->drv_eng);
1353 		strscpy(drv_version.name, params->name,
1354 			MCP_DRV_VER_STR_SIZE - 4);
1355 		rc = qed_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
1356 					      &drv_version);
1357 		if (rc) {
1358 			DP_NOTICE(cdev, "Failed sending drv version command\n");
1359 			goto err4;
1360 		}
1361 	}
1362 
1363 	qed_reset_vport_stats(cdev);
1364 
1365 	return 0;
1366 
1367 err4:
1368 	qed_ll2_dealloc_if(cdev);
1369 err3:
1370 	qed_hw_stop(cdev);
1371 err2:
1372 	qed_hw_timers_stop_all(cdev);
1373 	if (IS_PF(cdev))
1374 		qed_slowpath_irq_free(cdev);
1375 	qed_free_stream_mem(cdev);
1376 	qed_disable_msix(cdev);
1377 err1:
1378 	qed_resc_free(cdev);
1379 err:
1380 	if (IS_PF(cdev))
1381 		release_firmware(cdev->firmware);
1382 
1383 	if (IS_PF(cdev) && (cdev->num_hwfns == 1) &&
1384 	    QED_LEADING_HWFN(cdev)->p_arfs_ptt)
1385 		qed_ptt_release(QED_LEADING_HWFN(cdev),
1386 				QED_LEADING_HWFN(cdev)->p_arfs_ptt);
1387 
1388 	qed_iov_wq_stop(cdev, false);
1389 
1390 	qed_slowpath_wq_stop(cdev);
1391 
1392 	return rc;
1393 }
1394 
qed_slowpath_stop(struct qed_dev * cdev)1395 static int qed_slowpath_stop(struct qed_dev *cdev)
1396 {
1397 	if (!cdev)
1398 		return -ENODEV;
1399 
1400 	qed_slowpath_wq_stop(cdev);
1401 
1402 	qed_ll2_dealloc_if(cdev);
1403 
1404 	if (IS_PF(cdev)) {
1405 		if (cdev->num_hwfns == 1)
1406 			qed_ptt_release(QED_LEADING_HWFN(cdev),
1407 					QED_LEADING_HWFN(cdev)->p_arfs_ptt);
1408 		qed_free_stream_mem(cdev);
1409 		if (IS_QED_ETH_IF(cdev))
1410 			qed_sriov_disable(cdev, true);
1411 	}
1412 
1413 	qed_nic_stop(cdev);
1414 
1415 	if (IS_PF(cdev))
1416 		qed_slowpath_irq_free(cdev);
1417 
1418 	qed_disable_msix(cdev);
1419 
1420 	qed_resc_free(cdev);
1421 
1422 	qed_iov_wq_stop(cdev, true);
1423 
1424 	if (IS_PF(cdev))
1425 		release_firmware(cdev->firmware);
1426 
1427 	return 0;
1428 }
1429 
qed_set_name(struct qed_dev * cdev,char name[NAME_SIZE])1430 static void qed_set_name(struct qed_dev *cdev, char name[NAME_SIZE])
1431 {
1432 	int i;
1433 
1434 	memcpy(cdev->name, name, NAME_SIZE);
1435 	for_each_hwfn(cdev, i)
1436 		snprintf(cdev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
1437 }
1438 
qed_sb_init(struct qed_dev * cdev,struct qed_sb_info * sb_info,void * sb_virt_addr,dma_addr_t sb_phy_addr,u16 sb_id,enum qed_sb_type type)1439 static u32 qed_sb_init(struct qed_dev *cdev,
1440 		       struct qed_sb_info *sb_info,
1441 		       void *sb_virt_addr,
1442 		       dma_addr_t sb_phy_addr, u16 sb_id,
1443 		       enum qed_sb_type type)
1444 {
1445 	struct qed_hwfn *p_hwfn;
1446 	struct qed_ptt *p_ptt;
1447 	u16 rel_sb_id;
1448 	u32 rc;
1449 
1450 	/* RoCE/Storage use a single engine in CMT mode while L2 uses both */
1451 	if (type == QED_SB_TYPE_L2_QUEUE) {
1452 		p_hwfn = &cdev->hwfns[sb_id % cdev->num_hwfns];
1453 		rel_sb_id = sb_id / cdev->num_hwfns;
1454 	} else {
1455 		p_hwfn = QED_AFFIN_HWFN(cdev);
1456 		rel_sb_id = sb_id;
1457 	}
1458 
1459 	DP_VERBOSE(cdev, NETIF_MSG_INTR,
1460 		   "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
1461 		   IS_LEAD_HWFN(p_hwfn) ? 0 : 1, rel_sb_id, sb_id);
1462 
1463 	if (IS_PF(p_hwfn->cdev)) {
1464 		p_ptt = qed_ptt_acquire(p_hwfn);
1465 		if (!p_ptt)
1466 			return -EBUSY;
1467 
1468 		rc = qed_int_sb_init(p_hwfn, p_ptt, sb_info, sb_virt_addr,
1469 				     sb_phy_addr, rel_sb_id);
1470 		qed_ptt_release(p_hwfn, p_ptt);
1471 	} else {
1472 		rc = qed_int_sb_init(p_hwfn, NULL, sb_info, sb_virt_addr,
1473 				     sb_phy_addr, rel_sb_id);
1474 	}
1475 
1476 	return rc;
1477 }
1478 
qed_sb_release(struct qed_dev * cdev,struct qed_sb_info * sb_info,u16 sb_id,enum qed_sb_type type)1479 static u32 qed_sb_release(struct qed_dev *cdev,
1480 			  struct qed_sb_info *sb_info,
1481 			  u16 sb_id,
1482 			  enum qed_sb_type type)
1483 {
1484 	struct qed_hwfn *p_hwfn;
1485 	u16 rel_sb_id;
1486 	u32 rc;
1487 
1488 	/* RoCE/Storage use a single engine in CMT mode while L2 uses both */
1489 	if (type == QED_SB_TYPE_L2_QUEUE) {
1490 		p_hwfn = &cdev->hwfns[sb_id % cdev->num_hwfns];
1491 		rel_sb_id = sb_id / cdev->num_hwfns;
1492 	} else {
1493 		p_hwfn = QED_AFFIN_HWFN(cdev);
1494 		rel_sb_id = sb_id;
1495 	}
1496 
1497 	DP_VERBOSE(cdev, NETIF_MSG_INTR,
1498 		   "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
1499 		   IS_LEAD_HWFN(p_hwfn) ? 0 : 1, rel_sb_id, sb_id);
1500 
1501 	rc = qed_int_sb_release(p_hwfn, sb_info, rel_sb_id);
1502 
1503 	return rc;
1504 }
1505 
qed_can_link_change(struct qed_dev * cdev)1506 static bool qed_can_link_change(struct qed_dev *cdev)
1507 {
1508 	return true;
1509 }
1510 
qed_set_ext_speed_params(struct qed_mcp_link_params * link_params,const struct qed_link_params * params)1511 static void qed_set_ext_speed_params(struct qed_mcp_link_params *link_params,
1512 				     const struct qed_link_params *params)
1513 {
1514 	struct qed_mcp_link_speed_params *ext_speed = &link_params->ext_speed;
1515 	const struct qed_mfw_speed_map *map;
1516 	u32 i;
1517 
1518 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
1519 		ext_speed->autoneg = !!params->autoneg;
1520 
1521 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS) {
1522 		ext_speed->advertised_speeds = 0;
1523 
1524 		for (i = 0; i < ARRAY_SIZE(qed_mfw_ext_maps); i++) {
1525 			map = qed_mfw_ext_maps + i;
1526 
1527 			if (linkmode_intersects(params->adv_speeds, map->caps))
1528 				ext_speed->advertised_speeds |= map->mfw_val;
1529 		}
1530 	}
1531 
1532 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED) {
1533 		switch (params->forced_speed) {
1534 		case SPEED_1000:
1535 			ext_speed->forced_speed = QED_EXT_SPEED_1G;
1536 			break;
1537 		case SPEED_10000:
1538 			ext_speed->forced_speed = QED_EXT_SPEED_10G;
1539 			break;
1540 		case SPEED_20000:
1541 			ext_speed->forced_speed = QED_EXT_SPEED_20G;
1542 			break;
1543 		case SPEED_25000:
1544 			ext_speed->forced_speed = QED_EXT_SPEED_25G;
1545 			break;
1546 		case SPEED_40000:
1547 			ext_speed->forced_speed = QED_EXT_SPEED_40G;
1548 			break;
1549 		case SPEED_50000:
1550 			ext_speed->forced_speed = QED_EXT_SPEED_50G_R |
1551 						  QED_EXT_SPEED_50G_R2;
1552 			break;
1553 		case SPEED_100000:
1554 			ext_speed->forced_speed = QED_EXT_SPEED_100G_R2 |
1555 						  QED_EXT_SPEED_100G_R4 |
1556 						  QED_EXT_SPEED_100G_P4;
1557 			break;
1558 		default:
1559 			break;
1560 		}
1561 	}
1562 
1563 	if (!(params->override_flags & QED_LINK_OVERRIDE_FEC_CONFIG))
1564 		return;
1565 
1566 	switch (params->forced_speed) {
1567 	case SPEED_25000:
1568 		switch (params->fec) {
1569 		case FEC_FORCE_MODE_NONE:
1570 			link_params->ext_fec_mode = ETH_EXT_FEC_25G_NONE;
1571 			break;
1572 		case FEC_FORCE_MODE_FIRECODE:
1573 			link_params->ext_fec_mode = ETH_EXT_FEC_25G_BASE_R;
1574 			break;
1575 		case FEC_FORCE_MODE_RS:
1576 			link_params->ext_fec_mode = ETH_EXT_FEC_25G_RS528;
1577 			break;
1578 		case FEC_FORCE_MODE_AUTO:
1579 			link_params->ext_fec_mode = ETH_EXT_FEC_25G_RS528 |
1580 						    ETH_EXT_FEC_25G_BASE_R |
1581 						    ETH_EXT_FEC_25G_NONE;
1582 			break;
1583 		default:
1584 			break;
1585 		}
1586 
1587 		break;
1588 	case SPEED_40000:
1589 		switch (params->fec) {
1590 		case FEC_FORCE_MODE_NONE:
1591 			link_params->ext_fec_mode = ETH_EXT_FEC_40G_NONE;
1592 			break;
1593 		case FEC_FORCE_MODE_FIRECODE:
1594 			link_params->ext_fec_mode = ETH_EXT_FEC_40G_BASE_R;
1595 			break;
1596 		case FEC_FORCE_MODE_AUTO:
1597 			link_params->ext_fec_mode = ETH_EXT_FEC_40G_BASE_R |
1598 						    ETH_EXT_FEC_40G_NONE;
1599 			break;
1600 		default:
1601 			break;
1602 		}
1603 
1604 		break;
1605 	case SPEED_50000:
1606 		switch (params->fec) {
1607 		case FEC_FORCE_MODE_NONE:
1608 			link_params->ext_fec_mode = ETH_EXT_FEC_50G_NONE;
1609 			break;
1610 		case FEC_FORCE_MODE_FIRECODE:
1611 			link_params->ext_fec_mode = ETH_EXT_FEC_50G_BASE_R;
1612 			break;
1613 		case FEC_FORCE_MODE_RS:
1614 			link_params->ext_fec_mode = ETH_EXT_FEC_50G_RS528;
1615 			break;
1616 		case FEC_FORCE_MODE_AUTO:
1617 			link_params->ext_fec_mode = ETH_EXT_FEC_50G_RS528 |
1618 						    ETH_EXT_FEC_50G_BASE_R |
1619 						    ETH_EXT_FEC_50G_NONE;
1620 			break;
1621 		default:
1622 			break;
1623 		}
1624 
1625 		break;
1626 	case SPEED_100000:
1627 		switch (params->fec) {
1628 		case FEC_FORCE_MODE_NONE:
1629 			link_params->ext_fec_mode = ETH_EXT_FEC_100G_NONE;
1630 			break;
1631 		case FEC_FORCE_MODE_FIRECODE:
1632 			link_params->ext_fec_mode = ETH_EXT_FEC_100G_BASE_R;
1633 			break;
1634 		case FEC_FORCE_MODE_RS:
1635 			link_params->ext_fec_mode = ETH_EXT_FEC_100G_RS528;
1636 			break;
1637 		case FEC_FORCE_MODE_AUTO:
1638 			link_params->ext_fec_mode = ETH_EXT_FEC_100G_RS528 |
1639 						    ETH_EXT_FEC_100G_BASE_R |
1640 						    ETH_EXT_FEC_100G_NONE;
1641 			break;
1642 		default:
1643 			break;
1644 		}
1645 
1646 		break;
1647 	default:
1648 		break;
1649 	}
1650 }
1651 
qed_set_link(struct qed_dev * cdev,struct qed_link_params * params)1652 static int qed_set_link(struct qed_dev *cdev, struct qed_link_params *params)
1653 {
1654 	struct qed_mcp_link_params *link_params;
1655 	struct qed_mcp_link_speed_params *speed;
1656 	const struct qed_mfw_speed_map *map;
1657 	struct qed_hwfn *hwfn;
1658 	struct qed_ptt *ptt;
1659 	int rc;
1660 	u32 i;
1661 
1662 	if (!cdev)
1663 		return -ENODEV;
1664 
1665 	/* The link should be set only once per PF */
1666 	hwfn = &cdev->hwfns[0];
1667 
1668 	/* When VF wants to set link, force it to read the bulletin instead.
1669 	 * This mimics the PF behavior, where a noitification [both immediate
1670 	 * and possible later] would be generated when changing properties.
1671 	 */
1672 	if (IS_VF(cdev)) {
1673 		qed_schedule_iov(hwfn, QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG);
1674 		return 0;
1675 	}
1676 
1677 	ptt = qed_ptt_acquire(hwfn);
1678 	if (!ptt)
1679 		return -EBUSY;
1680 
1681 	link_params = qed_mcp_get_link_params(hwfn);
1682 	if (!link_params)
1683 		return -ENODATA;
1684 
1685 	speed = &link_params->speed;
1686 
1687 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
1688 		speed->autoneg = !!params->autoneg;
1689 
1690 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS) {
1691 		speed->advertised_speeds = 0;
1692 
1693 		for (i = 0; i < ARRAY_SIZE(qed_mfw_legacy_maps); i++) {
1694 			map = qed_mfw_legacy_maps + i;
1695 
1696 			if (linkmode_intersects(params->adv_speeds, map->caps))
1697 				speed->advertised_speeds |= map->mfw_val;
1698 		}
1699 	}
1700 
1701 	if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED)
1702 		speed->forced_speed = params->forced_speed;
1703 
1704 	if (qed_mcp_is_ext_speed_supported(hwfn))
1705 		qed_set_ext_speed_params(link_params, params);
1706 
1707 	if (params->override_flags & QED_LINK_OVERRIDE_PAUSE_CONFIG) {
1708 		if (params->pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
1709 			link_params->pause.autoneg = true;
1710 		else
1711 			link_params->pause.autoneg = false;
1712 		if (params->pause_config & QED_LINK_PAUSE_RX_ENABLE)
1713 			link_params->pause.forced_rx = true;
1714 		else
1715 			link_params->pause.forced_rx = false;
1716 		if (params->pause_config & QED_LINK_PAUSE_TX_ENABLE)
1717 			link_params->pause.forced_tx = true;
1718 		else
1719 			link_params->pause.forced_tx = false;
1720 	}
1721 
1722 	if (params->override_flags & QED_LINK_OVERRIDE_LOOPBACK_MODE) {
1723 		switch (params->loopback_mode) {
1724 		case QED_LINK_LOOPBACK_INT_PHY:
1725 			link_params->loopback_mode = ETH_LOOPBACK_INT_PHY;
1726 			break;
1727 		case QED_LINK_LOOPBACK_EXT_PHY:
1728 			link_params->loopback_mode = ETH_LOOPBACK_EXT_PHY;
1729 			break;
1730 		case QED_LINK_LOOPBACK_EXT:
1731 			link_params->loopback_mode = ETH_LOOPBACK_EXT;
1732 			break;
1733 		case QED_LINK_LOOPBACK_MAC:
1734 			link_params->loopback_mode = ETH_LOOPBACK_MAC;
1735 			break;
1736 		case QED_LINK_LOOPBACK_CNIG_AH_ONLY_0123:
1737 			link_params->loopback_mode =
1738 				ETH_LOOPBACK_CNIG_AH_ONLY_0123;
1739 			break;
1740 		case QED_LINK_LOOPBACK_CNIG_AH_ONLY_2301:
1741 			link_params->loopback_mode =
1742 				ETH_LOOPBACK_CNIG_AH_ONLY_2301;
1743 			break;
1744 		case QED_LINK_LOOPBACK_PCS_AH_ONLY:
1745 			link_params->loopback_mode = ETH_LOOPBACK_PCS_AH_ONLY;
1746 			break;
1747 		case QED_LINK_LOOPBACK_REVERSE_MAC_AH_ONLY:
1748 			link_params->loopback_mode =
1749 				ETH_LOOPBACK_REVERSE_MAC_AH_ONLY;
1750 			break;
1751 		case QED_LINK_LOOPBACK_INT_PHY_FEA_AH_ONLY:
1752 			link_params->loopback_mode =
1753 				ETH_LOOPBACK_INT_PHY_FEA_AH_ONLY;
1754 			break;
1755 		default:
1756 			link_params->loopback_mode = ETH_LOOPBACK_NONE;
1757 			break;
1758 		}
1759 	}
1760 
1761 	if (params->override_flags & QED_LINK_OVERRIDE_EEE_CONFIG)
1762 		memcpy(&link_params->eee, &params->eee,
1763 		       sizeof(link_params->eee));
1764 
1765 	if (params->override_flags & QED_LINK_OVERRIDE_FEC_CONFIG)
1766 		link_params->fec = params->fec;
1767 
1768 	rc = qed_mcp_set_link(hwfn, ptt, params->link_up);
1769 
1770 	qed_ptt_release(hwfn, ptt);
1771 
1772 	return rc;
1773 }
1774 
qed_get_port_type(u32 media_type)1775 static int qed_get_port_type(u32 media_type)
1776 {
1777 	int port_type;
1778 
1779 	switch (media_type) {
1780 	case MEDIA_SFPP_10G_FIBER:
1781 	case MEDIA_SFP_1G_FIBER:
1782 	case MEDIA_XFP_FIBER:
1783 	case MEDIA_MODULE_FIBER:
1784 		port_type = PORT_FIBRE;
1785 		break;
1786 	case MEDIA_DA_TWINAX:
1787 		port_type = PORT_DA;
1788 		break;
1789 	case MEDIA_BASE_T:
1790 		port_type = PORT_TP;
1791 		break;
1792 	case MEDIA_KR:
1793 	case MEDIA_NOT_PRESENT:
1794 		port_type = PORT_NONE;
1795 		break;
1796 	case MEDIA_UNSPECIFIED:
1797 	default:
1798 		port_type = PORT_OTHER;
1799 		break;
1800 	}
1801 	return port_type;
1802 }
1803 
qed_get_link_data(struct qed_hwfn * hwfn,struct qed_mcp_link_params * params,struct qed_mcp_link_state * link,struct qed_mcp_link_capabilities * link_caps)1804 static int qed_get_link_data(struct qed_hwfn *hwfn,
1805 			     struct qed_mcp_link_params *params,
1806 			     struct qed_mcp_link_state *link,
1807 			     struct qed_mcp_link_capabilities *link_caps)
1808 {
1809 	void *p;
1810 
1811 	if (!IS_PF(hwfn->cdev)) {
1812 		qed_vf_get_link_params(hwfn, params);
1813 		qed_vf_get_link_state(hwfn, link);
1814 		qed_vf_get_link_caps(hwfn, link_caps);
1815 
1816 		return 0;
1817 	}
1818 
1819 	p = qed_mcp_get_link_params(hwfn);
1820 	if (!p)
1821 		return -ENXIO;
1822 	memcpy(params, p, sizeof(*params));
1823 
1824 	p = qed_mcp_get_link_state(hwfn);
1825 	if (!p)
1826 		return -ENXIO;
1827 	memcpy(link, p, sizeof(*link));
1828 
1829 	p = qed_mcp_get_link_capabilities(hwfn);
1830 	if (!p)
1831 		return -ENXIO;
1832 	memcpy(link_caps, p, sizeof(*link_caps));
1833 
1834 	return 0;
1835 }
1836 
qed_fill_link_capability(struct qed_hwfn * hwfn,struct qed_ptt * ptt,u32 capability,unsigned long * if_caps)1837 static void qed_fill_link_capability(struct qed_hwfn *hwfn,
1838 				     struct qed_ptt *ptt, u32 capability,
1839 				     unsigned long *if_caps)
1840 {
1841 	u32 media_type, tcvr_state, tcvr_type;
1842 	u32 speed_mask, board_cfg;
1843 
1844 	if (qed_mcp_get_media_type(hwfn, ptt, &media_type))
1845 		media_type = MEDIA_UNSPECIFIED;
1846 
1847 	if (qed_mcp_get_transceiver_data(hwfn, ptt, &tcvr_state, &tcvr_type))
1848 		tcvr_type = ETH_TRANSCEIVER_STATE_UNPLUGGED;
1849 
1850 	if (qed_mcp_trans_speed_mask(hwfn, ptt, &speed_mask))
1851 		speed_mask = 0xFFFFFFFF;
1852 
1853 	if (qed_mcp_get_board_config(hwfn, ptt, &board_cfg))
1854 		board_cfg = NVM_CFG1_PORT_PORT_TYPE_UNDEFINED;
1855 
1856 	DP_VERBOSE(hwfn->cdev, NETIF_MSG_DRV,
1857 		   "Media_type = 0x%x tcvr_state = 0x%x tcvr_type = 0x%x speed_mask = 0x%x board_cfg = 0x%x\n",
1858 		   media_type, tcvr_state, tcvr_type, speed_mask, board_cfg);
1859 
1860 	switch (media_type) {
1861 	case MEDIA_DA_TWINAX:
1862 		phylink_set(if_caps, FIBRE);
1863 
1864 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
1865 			phylink_set(if_caps, 20000baseKR2_Full);
1866 
1867 		/* For DAC media multiple speed capabilities are supported */
1868 		capability |= speed_mask;
1869 
1870 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
1871 			phylink_set(if_caps, 1000baseKX_Full);
1872 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
1873 			phylink_set(if_caps, 10000baseCR_Full);
1874 
1875 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
1876 			switch (tcvr_type) {
1877 			case ETH_TRANSCEIVER_TYPE_40G_CR4:
1878 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_40G_CR:
1879 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_CR:
1880 				phylink_set(if_caps, 40000baseCR4_Full);
1881 				break;
1882 			default:
1883 				break;
1884 			}
1885 
1886 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G)
1887 			phylink_set(if_caps, 25000baseCR_Full);
1888 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
1889 			phylink_set(if_caps, 50000baseCR2_Full);
1890 
1891 		if (capability &
1892 		    NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G)
1893 			switch (tcvr_type) {
1894 			case ETH_TRANSCEIVER_TYPE_100G_CR4:
1895 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_CR:
1896 				phylink_set(if_caps, 100000baseCR4_Full);
1897 				break;
1898 			default:
1899 				break;
1900 			}
1901 
1902 		break;
1903 	case MEDIA_BASE_T:
1904 		phylink_set(if_caps, TP);
1905 
1906 		if (board_cfg & NVM_CFG1_PORT_PORT_TYPE_EXT_PHY) {
1907 			if (capability &
1908 			    NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
1909 				phylink_set(if_caps, 1000baseT_Full);
1910 			if (capability &
1911 			    NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
1912 				phylink_set(if_caps, 10000baseT_Full);
1913 		}
1914 
1915 		if (board_cfg & NVM_CFG1_PORT_PORT_TYPE_MODULE) {
1916 			phylink_set(if_caps, FIBRE);
1917 
1918 			switch (tcvr_type) {
1919 			case ETH_TRANSCEIVER_TYPE_1000BASET:
1920 				phylink_set(if_caps, 1000baseT_Full);
1921 				break;
1922 			case ETH_TRANSCEIVER_TYPE_10G_BASET:
1923 				phylink_set(if_caps, 10000baseT_Full);
1924 				break;
1925 			default:
1926 				break;
1927 			}
1928 		}
1929 
1930 		break;
1931 	case MEDIA_SFP_1G_FIBER:
1932 	case MEDIA_SFPP_10G_FIBER:
1933 	case MEDIA_XFP_FIBER:
1934 	case MEDIA_MODULE_FIBER:
1935 		phylink_set(if_caps, FIBRE);
1936 		capability |= speed_mask;
1937 
1938 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
1939 			switch (tcvr_type) {
1940 			case ETH_TRANSCEIVER_TYPE_1G_LX:
1941 			case ETH_TRANSCEIVER_TYPE_1G_SX:
1942 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_1G_10G_SR:
1943 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_1G_10G_LR:
1944 				phylink_set(if_caps, 1000baseKX_Full);
1945 				break;
1946 			default:
1947 				break;
1948 			}
1949 
1950 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
1951 			switch (tcvr_type) {
1952 			case ETH_TRANSCEIVER_TYPE_10G_SR:
1953 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_40G_SR:
1954 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_25G_SR:
1955 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_1G_10G_SR:
1956 				phylink_set(if_caps, 10000baseSR_Full);
1957 				break;
1958 			case ETH_TRANSCEIVER_TYPE_10G_LR:
1959 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_40G_LR:
1960 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_25G_LR:
1961 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_1G_10G_LR:
1962 				phylink_set(if_caps, 10000baseLR_Full);
1963 				break;
1964 			case ETH_TRANSCEIVER_TYPE_10G_LRM:
1965 				phylink_set(if_caps, 10000baseLRM_Full);
1966 				break;
1967 			case ETH_TRANSCEIVER_TYPE_10G_ER:
1968 				phylink_set(if_caps, 10000baseR_FEC);
1969 				break;
1970 			default:
1971 				break;
1972 			}
1973 
1974 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
1975 			phylink_set(if_caps, 20000baseKR2_Full);
1976 
1977 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G)
1978 			switch (tcvr_type) {
1979 			case ETH_TRANSCEIVER_TYPE_25G_SR:
1980 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_25G_SR:
1981 				phylink_set(if_caps, 25000baseSR_Full);
1982 				break;
1983 			default:
1984 				break;
1985 			}
1986 
1987 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
1988 			switch (tcvr_type) {
1989 			case ETH_TRANSCEIVER_TYPE_40G_LR4:
1990 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_40G_LR:
1991 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_LR:
1992 				phylink_set(if_caps, 40000baseLR4_Full);
1993 				break;
1994 			case ETH_TRANSCEIVER_TYPE_40G_SR4:
1995 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_SR:
1996 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_10G_40G_SR:
1997 				phylink_set(if_caps, 40000baseSR4_Full);
1998 				break;
1999 			default:
2000 				break;
2001 			}
2002 
2003 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
2004 			phylink_set(if_caps, 50000baseKR2_Full);
2005 
2006 		if (capability &
2007 		    NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G)
2008 			switch (tcvr_type) {
2009 			case ETH_TRANSCEIVER_TYPE_100G_SR4:
2010 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_SR:
2011 				phylink_set(if_caps, 100000baseSR4_Full);
2012 				break;
2013 			case ETH_TRANSCEIVER_TYPE_MULTI_RATE_40G_100G_LR:
2014 				phylink_set(if_caps, 100000baseLR4_ER4_Full);
2015 				break;
2016 			default:
2017 				break;
2018 			}
2019 
2020 		break;
2021 	case MEDIA_KR:
2022 		phylink_set(if_caps, Backplane);
2023 
2024 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G)
2025 			phylink_set(if_caps, 20000baseKR2_Full);
2026 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
2027 			phylink_set(if_caps, 1000baseKX_Full);
2028 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
2029 			phylink_set(if_caps, 10000baseKR_Full);
2030 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G)
2031 			phylink_set(if_caps, 25000baseKR_Full);
2032 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
2033 			phylink_set(if_caps, 40000baseKR4_Full);
2034 		if (capability & NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
2035 			phylink_set(if_caps, 50000baseKR2_Full);
2036 		if (capability &
2037 		    NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G)
2038 			phylink_set(if_caps, 100000baseKR4_Full);
2039 
2040 		break;
2041 	case MEDIA_UNSPECIFIED:
2042 	case MEDIA_NOT_PRESENT:
2043 	default:
2044 		DP_VERBOSE(hwfn->cdev, QED_MSG_DEBUG,
2045 			   "Unknown media and transceiver type;\n");
2046 		break;
2047 	}
2048 }
2049 
qed_lp_caps_to_speed_mask(u32 caps,u32 * speed_mask)2050 static void qed_lp_caps_to_speed_mask(u32 caps, u32 *speed_mask)
2051 {
2052 	*speed_mask = 0;
2053 
2054 	if (caps &
2055 	    (QED_LINK_PARTNER_SPEED_1G_FD | QED_LINK_PARTNER_SPEED_1G_HD))
2056 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G;
2057 	if (caps & QED_LINK_PARTNER_SPEED_10G)
2058 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G;
2059 	if (caps & QED_LINK_PARTNER_SPEED_20G)
2060 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_20G;
2061 	if (caps & QED_LINK_PARTNER_SPEED_25G)
2062 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_25G;
2063 	if (caps & QED_LINK_PARTNER_SPEED_40G)
2064 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G;
2065 	if (caps & QED_LINK_PARTNER_SPEED_50G)
2066 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G;
2067 	if (caps & QED_LINK_PARTNER_SPEED_100G)
2068 		*speed_mask |= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_BB_100G;
2069 }
2070 
qed_fill_link(struct qed_hwfn * hwfn,struct qed_ptt * ptt,struct qed_link_output * if_link)2071 static void qed_fill_link(struct qed_hwfn *hwfn,
2072 			  struct qed_ptt *ptt,
2073 			  struct qed_link_output *if_link)
2074 {
2075 	struct qed_mcp_link_capabilities link_caps;
2076 	struct qed_mcp_link_params params;
2077 	struct qed_mcp_link_state link;
2078 	u32 media_type, speed_mask;
2079 
2080 	memset(if_link, 0, sizeof(*if_link));
2081 
2082 	/* Prepare source inputs */
2083 	if (qed_get_link_data(hwfn, &params, &link, &link_caps)) {
2084 		dev_warn(&hwfn->cdev->pdev->dev, "no link data available\n");
2085 		return;
2086 	}
2087 
2088 	/* Set the link parameters to pass to protocol driver */
2089 	if (link.link_up)
2090 		if_link->link_up = true;
2091 
2092 	if (IS_PF(hwfn->cdev) && qed_mcp_is_ext_speed_supported(hwfn)) {
2093 		if (link_caps.default_ext_autoneg)
2094 			phylink_set(if_link->supported_caps, Autoneg);
2095 
2096 		linkmode_copy(if_link->advertised_caps, if_link->supported_caps);
2097 
2098 		if (params.ext_speed.autoneg)
2099 			phylink_set(if_link->advertised_caps, Autoneg);
2100 		else
2101 			phylink_clear(if_link->advertised_caps, Autoneg);
2102 
2103 		qed_fill_link_capability(hwfn, ptt,
2104 					 params.ext_speed.advertised_speeds,
2105 					 if_link->advertised_caps);
2106 	} else {
2107 		if (link_caps.default_speed_autoneg)
2108 			phylink_set(if_link->supported_caps, Autoneg);
2109 
2110 		linkmode_copy(if_link->advertised_caps, if_link->supported_caps);
2111 
2112 		if (params.speed.autoneg)
2113 			phylink_set(if_link->advertised_caps, Autoneg);
2114 		else
2115 			phylink_clear(if_link->advertised_caps, Autoneg);
2116 	}
2117 
2118 	if (params.pause.autoneg ||
2119 	    (params.pause.forced_rx && params.pause.forced_tx))
2120 		phylink_set(if_link->supported_caps, Asym_Pause);
2121 	if (params.pause.autoneg || params.pause.forced_rx ||
2122 	    params.pause.forced_tx)
2123 		phylink_set(if_link->supported_caps, Pause);
2124 
2125 	if_link->sup_fec = link_caps.fec_default;
2126 	if_link->active_fec = params.fec;
2127 
2128 	/* Fill link advertised capability */
2129 	qed_fill_link_capability(hwfn, ptt, params.speed.advertised_speeds,
2130 				 if_link->advertised_caps);
2131 
2132 	/* Fill link supported capability */
2133 	qed_fill_link_capability(hwfn, ptt, link_caps.speed_capabilities,
2134 				 if_link->supported_caps);
2135 
2136 	/* Fill partner advertised capability */
2137 	qed_lp_caps_to_speed_mask(link.partner_adv_speed, &speed_mask);
2138 	qed_fill_link_capability(hwfn, ptt, speed_mask, if_link->lp_caps);
2139 
2140 	if (link.link_up)
2141 		if_link->speed = link.speed;
2142 
2143 	/* TODO - fill duplex properly */
2144 	if_link->duplex = DUPLEX_FULL;
2145 	qed_mcp_get_media_type(hwfn, ptt, &media_type);
2146 	if_link->port = qed_get_port_type(media_type);
2147 
2148 	if_link->autoneg = params.speed.autoneg;
2149 
2150 	if (params.pause.autoneg)
2151 		if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
2152 	if (params.pause.forced_rx)
2153 		if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
2154 	if (params.pause.forced_tx)
2155 		if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
2156 
2157 	if (link.an_complete)
2158 		phylink_set(if_link->lp_caps, Autoneg);
2159 	if (link.partner_adv_pause)
2160 		phylink_set(if_link->lp_caps, Pause);
2161 	if (link.partner_adv_pause == QED_LINK_PARTNER_ASYMMETRIC_PAUSE ||
2162 	    link.partner_adv_pause == QED_LINK_PARTNER_BOTH_PAUSE)
2163 		phylink_set(if_link->lp_caps, Asym_Pause);
2164 
2165 	if (link_caps.default_eee == QED_MCP_EEE_UNSUPPORTED) {
2166 		if_link->eee_supported = false;
2167 	} else {
2168 		if_link->eee_supported = true;
2169 		if_link->eee_active = link.eee_active;
2170 		if_link->sup_caps = link_caps.eee_speed_caps;
2171 		/* MFW clears adv_caps on eee disable; use configured value */
2172 		if_link->eee.adv_caps = link.eee_adv_caps ? link.eee_adv_caps :
2173 					params.eee.adv_caps;
2174 		if_link->eee.lp_adv_caps = link.eee_lp_adv_caps;
2175 		if_link->eee.enable = params.eee.enable;
2176 		if_link->eee.tx_lpi_enable = params.eee.tx_lpi_enable;
2177 		if_link->eee.tx_lpi_timer = params.eee.tx_lpi_timer;
2178 	}
2179 }
2180 
qed_get_current_link(struct qed_dev * cdev,struct qed_link_output * if_link)2181 static void qed_get_current_link(struct qed_dev *cdev,
2182 				 struct qed_link_output *if_link)
2183 {
2184 	struct qed_hwfn *hwfn;
2185 	struct qed_ptt *ptt;
2186 	int i;
2187 
2188 	hwfn = &cdev->hwfns[0];
2189 	if (IS_PF(cdev)) {
2190 		ptt = qed_ptt_acquire(hwfn);
2191 		if (ptt) {
2192 			qed_fill_link(hwfn, ptt, if_link);
2193 			qed_ptt_release(hwfn, ptt);
2194 		} else {
2195 			DP_NOTICE(hwfn, "Failed to fill link; No PTT\n");
2196 		}
2197 	} else {
2198 		qed_fill_link(hwfn, NULL, if_link);
2199 	}
2200 
2201 	for_each_hwfn(cdev, i)
2202 		qed_inform_vf_link_state(&cdev->hwfns[i]);
2203 }
2204 
qed_link_update(struct qed_hwfn * hwfn,struct qed_ptt * ptt)2205 void qed_link_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt)
2206 {
2207 	void *cookie = hwfn->cdev->ops_cookie;
2208 	struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
2209 	struct qed_link_output if_link;
2210 
2211 	qed_fill_link(hwfn, ptt, &if_link);
2212 	qed_inform_vf_link_state(hwfn);
2213 
2214 	if (IS_LEAD_HWFN(hwfn) && cookie)
2215 		op->link_update(cookie, &if_link);
2216 }
2217 
qed_bw_update(struct qed_hwfn * hwfn,struct qed_ptt * ptt)2218 void qed_bw_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt)
2219 {
2220 	void *cookie = hwfn->cdev->ops_cookie;
2221 	struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
2222 
2223 	if (IS_LEAD_HWFN(hwfn) && cookie && op && op->bw_update)
2224 		op->bw_update(cookie);
2225 }
2226 
qed_drain(struct qed_dev * cdev)2227 static int qed_drain(struct qed_dev *cdev)
2228 {
2229 	struct qed_hwfn *hwfn;
2230 	struct qed_ptt *ptt;
2231 	int i, rc;
2232 
2233 	if (IS_VF(cdev))
2234 		return 0;
2235 
2236 	for_each_hwfn(cdev, i) {
2237 		hwfn = &cdev->hwfns[i];
2238 		ptt = qed_ptt_acquire(hwfn);
2239 		if (!ptt) {
2240 			DP_NOTICE(hwfn, "Failed to drain NIG; No PTT\n");
2241 			return -EBUSY;
2242 		}
2243 		rc = qed_mcp_drain(hwfn, ptt);
2244 		qed_ptt_release(hwfn, ptt);
2245 		if (rc)
2246 			return rc;
2247 	}
2248 
2249 	return 0;
2250 }
2251 
qed_nvm_flash_image_access_crc(struct qed_dev * cdev,struct qed_nvm_image_att * nvm_image,u32 * crc)2252 static u32 qed_nvm_flash_image_access_crc(struct qed_dev *cdev,
2253 					  struct qed_nvm_image_att *nvm_image,
2254 					  u32 *crc)
2255 {
2256 	u8 *buf = NULL;
2257 	int rc;
2258 
2259 	/* Allocate a buffer for holding the nvram image */
2260 	buf = kzalloc(nvm_image->length, GFP_KERNEL);
2261 	if (!buf)
2262 		return -ENOMEM;
2263 
2264 	/* Read image into buffer */
2265 	rc = qed_mcp_nvm_read(cdev, nvm_image->start_addr,
2266 			      buf, nvm_image->length);
2267 	if (rc) {
2268 		DP_ERR(cdev, "Failed reading image from nvm\n");
2269 		goto out;
2270 	}
2271 
2272 	/* Convert the buffer into big-endian format (excluding the
2273 	 * closing 4 bytes of CRC).
2274 	 */
2275 	cpu_to_be32_array((__force __be32 *)buf, (const u32 *)buf,
2276 			  DIV_ROUND_UP(nvm_image->length - 4, 4));
2277 
2278 	/* Calc CRC for the "actual" image buffer, i.e. not including
2279 	 * the last 4 CRC bytes.
2280 	 */
2281 	*crc = ~crc32(~0U, buf, nvm_image->length - 4);
2282 	*crc = (__force u32)cpu_to_be32p(crc);
2283 
2284 out:
2285 	kfree(buf);
2286 
2287 	return rc;
2288 }
2289 
2290 /* Binary file format -
2291  *     /----------------------------------------------------------------------\
2292  * 0B  |                       0x4 [command index]                            |
2293  * 4B  | image_type     | Options        |  Number of register settings       |
2294  * 8B  |                       Value                                          |
2295  * 12B |                       Mask                                           |
2296  * 16B |                       Offset                                         |
2297  *     \----------------------------------------------------------------------/
2298  * There can be several Value-Mask-Offset sets as specified by 'Number of...'.
2299  * Options - 0'b - Calculate & Update CRC for image
2300  */
qed_nvm_flash_image_access(struct qed_dev * cdev,const u8 ** data,bool * check_resp)2301 static int qed_nvm_flash_image_access(struct qed_dev *cdev, const u8 **data,
2302 				      bool *check_resp)
2303 {
2304 	struct qed_nvm_image_att nvm_image;
2305 	struct qed_hwfn *p_hwfn;
2306 	bool is_crc = false;
2307 	u32 image_type;
2308 	int rc = 0, i;
2309 	u16 len;
2310 
2311 	*data += 4;
2312 	image_type = **data;
2313 	p_hwfn = QED_LEADING_HWFN(cdev);
2314 	for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
2315 		if (image_type == p_hwfn->nvm_info.image_att[i].image_type)
2316 			break;
2317 	if (i == p_hwfn->nvm_info.num_images) {
2318 		DP_ERR(cdev, "Failed to find nvram image of type %08x\n",
2319 		       image_type);
2320 		return -ENOENT;
2321 	}
2322 
2323 	nvm_image.start_addr = p_hwfn->nvm_info.image_att[i].nvm_start_addr;
2324 	nvm_image.length = p_hwfn->nvm_info.image_att[i].len;
2325 
2326 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2327 		   "Read image %02x; type = %08x; NVM [%08x,...,%08x]\n",
2328 		   **data, image_type, nvm_image.start_addr,
2329 		   nvm_image.start_addr + nvm_image.length - 1);
2330 	(*data)++;
2331 	is_crc = !!(**data & BIT(0));
2332 	(*data)++;
2333 	len = *((u16 *)*data);
2334 	*data += 2;
2335 	if (is_crc) {
2336 		u32 crc = 0;
2337 
2338 		rc = qed_nvm_flash_image_access_crc(cdev, &nvm_image, &crc);
2339 		if (rc) {
2340 			DP_ERR(cdev, "Failed calculating CRC, rc = %d\n", rc);
2341 			goto exit;
2342 		}
2343 
2344 		rc = qed_mcp_nvm_write(cdev, QED_NVM_WRITE_NVRAM,
2345 				       (nvm_image.start_addr +
2346 					nvm_image.length - 4), (u8 *)&crc, 4);
2347 		if (rc)
2348 			DP_ERR(cdev, "Failed writing to %08x, rc = %d\n",
2349 			       nvm_image.start_addr + nvm_image.length - 4, rc);
2350 		goto exit;
2351 	}
2352 
2353 	/* Iterate over the values for setting */
2354 	while (len) {
2355 		u32 offset, mask, value, cur_value;
2356 		u8 buf[4];
2357 
2358 		value = *((u32 *)*data);
2359 		*data += 4;
2360 		mask = *((u32 *)*data);
2361 		*data += 4;
2362 		offset = *((u32 *)*data);
2363 		*data += 4;
2364 
2365 		rc = qed_mcp_nvm_read(cdev, nvm_image.start_addr + offset, buf,
2366 				      4);
2367 		if (rc) {
2368 			DP_ERR(cdev, "Failed reading from %08x\n",
2369 			       nvm_image.start_addr + offset);
2370 			goto exit;
2371 		}
2372 
2373 		cur_value = le32_to_cpu(*((__le32 *)buf));
2374 		DP_VERBOSE(cdev, NETIF_MSG_DRV,
2375 			   "NVM %08x: %08x -> %08x [Value %08x Mask %08x]\n",
2376 			   nvm_image.start_addr + offset, cur_value,
2377 			   (cur_value & ~mask) | (value & mask), value, mask);
2378 		value = (value & mask) | (cur_value & ~mask);
2379 		rc = qed_mcp_nvm_write(cdev, QED_NVM_WRITE_NVRAM,
2380 				       nvm_image.start_addr + offset,
2381 				       (u8 *)&value, 4);
2382 		if (rc) {
2383 			DP_ERR(cdev, "Failed writing to %08x\n",
2384 			       nvm_image.start_addr + offset);
2385 			goto exit;
2386 		}
2387 
2388 		len--;
2389 	}
2390 exit:
2391 	return rc;
2392 }
2393 
2394 /* Binary file format -
2395  *     /----------------------------------------------------------------------\
2396  * 0B  |                       0x3 [command index]                            |
2397  * 4B  | b'0: check_response?   | b'1-31  reserved                            |
2398  * 8B  | File-type |                   reserved                               |
2399  * 12B |                    Image length in bytes                             |
2400  *     \----------------------------------------------------------------------/
2401  *     Start a new file of the provided type
2402  */
qed_nvm_flash_image_file_start(struct qed_dev * cdev,const u8 ** data,bool * check_resp)2403 static int qed_nvm_flash_image_file_start(struct qed_dev *cdev,
2404 					  const u8 **data, bool *check_resp)
2405 {
2406 	u32 file_type, file_size = 0;
2407 	int rc;
2408 
2409 	*data += 4;
2410 	*check_resp = !!(**data & BIT(0));
2411 	*data += 4;
2412 	file_type = **data;
2413 
2414 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2415 		   "About to start a new file of type %02x\n", file_type);
2416 	if (file_type == DRV_MB_PARAM_NVM_PUT_FILE_BEGIN_MBI) {
2417 		*data += 4;
2418 		file_size = *((u32 *)(*data));
2419 	}
2420 
2421 	rc = qed_mcp_nvm_write(cdev, QED_PUT_FILE_BEGIN, file_type,
2422 			       (u8 *)(&file_size), 4);
2423 	*data += 4;
2424 
2425 	return rc;
2426 }
2427 
2428 /* Binary file format -
2429  *     /----------------------------------------------------------------------\
2430  * 0B  |                       0x2 [command index]                            |
2431  * 4B  |                       Length in bytes                                |
2432  * 8B  | b'0: check_response?   | b'1-31  reserved                            |
2433  * 12B |                       Offset in bytes                                |
2434  * 16B |                       Data ...                                       |
2435  *     \----------------------------------------------------------------------/
2436  *     Write data as part of a file that was previously started. Data should be
2437  *     of length equal to that provided in the message
2438  */
qed_nvm_flash_image_file_data(struct qed_dev * cdev,const u8 ** data,bool * check_resp)2439 static int qed_nvm_flash_image_file_data(struct qed_dev *cdev,
2440 					 const u8 **data, bool *check_resp)
2441 {
2442 	u32 offset, len;
2443 	int rc;
2444 
2445 	*data += 4;
2446 	len = *((u32 *)(*data));
2447 	*data += 4;
2448 	*check_resp = !!(**data & BIT(0));
2449 	*data += 4;
2450 	offset = *((u32 *)(*data));
2451 	*data += 4;
2452 
2453 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2454 		   "About to write File-data: %08x bytes to offset %08x\n",
2455 		   len, offset);
2456 
2457 	rc = qed_mcp_nvm_write(cdev, QED_PUT_FILE_DATA, offset,
2458 			       (char *)(*data), len);
2459 	*data += len;
2460 
2461 	return rc;
2462 }
2463 
2464 /* Binary file format [General header] -
2465  *     /----------------------------------------------------------------------\
2466  * 0B  |                       QED_NVM_SIGNATURE                              |
2467  * 4B  |                       Length in bytes                                |
2468  * 8B  | Highest command in this batchfile |          Reserved                |
2469  *     \----------------------------------------------------------------------/
2470  */
qed_nvm_flash_image_validate(struct qed_dev * cdev,const struct firmware * image,const u8 ** data)2471 static int qed_nvm_flash_image_validate(struct qed_dev *cdev,
2472 					const struct firmware *image,
2473 					const u8 **data)
2474 {
2475 	u32 signature, len;
2476 
2477 	/* Check minimum size */
2478 	if (image->size < 12) {
2479 		DP_ERR(cdev, "Image is too short [%08x]\n", (u32)image->size);
2480 		return -EINVAL;
2481 	}
2482 
2483 	/* Check signature */
2484 	signature = *((u32 *)(*data));
2485 	if (signature != QED_NVM_SIGNATURE) {
2486 		DP_ERR(cdev, "Wrong signature '%08x'\n", signature);
2487 		return -EINVAL;
2488 	}
2489 
2490 	*data += 4;
2491 	/* Validate internal size equals the image-size */
2492 	len = *((u32 *)(*data));
2493 	if (len != image->size) {
2494 		DP_ERR(cdev, "Size mismatch: internal = %08x image = %08x\n",
2495 		       len, (u32)image->size);
2496 		return -EINVAL;
2497 	}
2498 
2499 	*data += 4;
2500 	/* Make sure driver familiar with all commands necessary for this */
2501 	if (*((u16 *)(*data)) >= QED_NVM_FLASH_CMD_NVM_MAX) {
2502 		DP_ERR(cdev, "File contains unsupported commands [Need %04x]\n",
2503 		       *((u16 *)(*data)));
2504 		return -EINVAL;
2505 	}
2506 
2507 	*data += 4;
2508 
2509 	return 0;
2510 }
2511 
2512 /* Binary file format -
2513  *     /----------------------------------------------------------------------\
2514  * 0B  |                       0x5 [command index]                            |
2515  * 4B  | Number of config attributes     |          Reserved                  |
2516  * 4B  | Config ID                       | Entity ID      | Length            |
2517  * 4B  | Value                                                                |
2518  *     |                                                                      |
2519  *     \----------------------------------------------------------------------/
2520  * There can be several cfg_id-entity_id-Length-Value sets as specified by
2521  * 'Number of config attributes'.
2522  *
2523  * The API parses config attributes from the user provided buffer and flashes
2524  * them to the respective NVM path using Management FW inerface.
2525  */
qed_nvm_flash_cfg_write(struct qed_dev * cdev,const u8 ** data)2526 static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
2527 {
2528 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2529 	u8 entity_id, len, buf[32];
2530 	bool need_nvm_init = true;
2531 	struct qed_ptt *ptt;
2532 	u16 cfg_id, count;
2533 	int rc = 0, i;
2534 	u32 flags;
2535 
2536 	ptt = qed_ptt_acquire(hwfn);
2537 	if (!ptt)
2538 		return -EAGAIN;
2539 
2540 	/* NVM CFG ID attribute header */
2541 	*data += 4;
2542 	count = *((u16 *)*data);
2543 	*data += 4;
2544 
2545 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2546 		   "Read config ids: num_attrs = %0d\n", count);
2547 	/* NVM CFG ID attributes. Start loop index from 1 to avoid additional
2548 	 * arithmetic operations in the implementation.
2549 	 */
2550 	for (i = 1; i <= count; i++) {
2551 		cfg_id = *((u16 *)*data);
2552 		*data += 2;
2553 		entity_id = **data;
2554 		(*data)++;
2555 		len = **data;
2556 		(*data)++;
2557 		memcpy(buf, *data, len);
2558 		*data += len;
2559 
2560 		flags = 0;
2561 		if (need_nvm_init) {
2562 			flags |= QED_NVM_CFG_OPTION_INIT;
2563 			need_nvm_init = false;
2564 		}
2565 
2566 		/* Commit to flash and free the resources */
2567 		if (!(i % QED_NVM_CFG_MAX_ATTRS) || i == count) {
2568 			flags |= QED_NVM_CFG_OPTION_COMMIT |
2569 				 QED_NVM_CFG_OPTION_FREE;
2570 			need_nvm_init = true;
2571 		}
2572 
2573 		if (entity_id)
2574 			flags |= QED_NVM_CFG_OPTION_ENTITY_SEL;
2575 
2576 		DP_VERBOSE(cdev, NETIF_MSG_DRV,
2577 			   "cfg_id = %d entity = %d len = %d\n", cfg_id,
2578 			   entity_id, len);
2579 		rc = qed_mcp_nvm_set_cfg(hwfn, ptt, cfg_id, entity_id, flags,
2580 					 buf, len);
2581 		if (rc) {
2582 			DP_ERR(cdev, "Error %d configuring %d\n", rc, cfg_id);
2583 			break;
2584 		}
2585 	}
2586 
2587 	qed_ptt_release(hwfn, ptt);
2588 
2589 	return rc;
2590 }
2591 
2592 #define QED_MAX_NVM_BUF_LEN	32
qed_nvm_flash_cfg_len(struct qed_dev * cdev,u32 cmd)2593 static int qed_nvm_flash_cfg_len(struct qed_dev *cdev, u32 cmd)
2594 {
2595 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2596 	u8 buf[QED_MAX_NVM_BUF_LEN];
2597 	struct qed_ptt *ptt;
2598 	u32 len;
2599 	int rc;
2600 
2601 	ptt = qed_ptt_acquire(hwfn);
2602 	if (!ptt)
2603 		return QED_MAX_NVM_BUF_LEN;
2604 
2605 	rc = qed_mcp_nvm_get_cfg(hwfn, ptt, cmd, 0, QED_NVM_CFG_GET_FLAGS, buf,
2606 				 &len);
2607 	if (rc || !len) {
2608 		DP_ERR(cdev, "Error %d reading %d\n", rc, cmd);
2609 		len = QED_MAX_NVM_BUF_LEN;
2610 	}
2611 
2612 	qed_ptt_release(hwfn, ptt);
2613 
2614 	return len;
2615 }
2616 
qed_nvm_flash_cfg_read(struct qed_dev * cdev,u8 ** data,u32 cmd,u32 entity_id)2617 static int qed_nvm_flash_cfg_read(struct qed_dev *cdev, u8 **data,
2618 				  u32 cmd, u32 entity_id)
2619 {
2620 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2621 	struct qed_ptt *ptt;
2622 	u32 flags, len;
2623 	int rc = 0;
2624 
2625 	ptt = qed_ptt_acquire(hwfn);
2626 	if (!ptt)
2627 		return -EAGAIN;
2628 
2629 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2630 		   "Read config cmd = %d entity id %d\n", cmd, entity_id);
2631 	flags = entity_id ? QED_NVM_CFG_GET_PF_FLAGS : QED_NVM_CFG_GET_FLAGS;
2632 	rc = qed_mcp_nvm_get_cfg(hwfn, ptt, cmd, entity_id, flags, *data, &len);
2633 	if (rc)
2634 		DP_ERR(cdev, "Error %d reading %d\n", rc, cmd);
2635 
2636 	qed_ptt_release(hwfn, ptt);
2637 
2638 	return rc;
2639 }
2640 
qed_nvm_flash(struct qed_dev * cdev,const char * name)2641 static int qed_nvm_flash(struct qed_dev *cdev, const char *name)
2642 {
2643 	const struct firmware *image;
2644 	const u8 *data, *data_end;
2645 	u32 cmd_type;
2646 	int rc;
2647 
2648 	rc = request_firmware(&image, name, &cdev->pdev->dev);
2649 	if (rc) {
2650 		DP_ERR(cdev, "Failed to find '%s'\n", name);
2651 		return rc;
2652 	}
2653 
2654 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
2655 		   "Flashing '%s' - firmware's data at %p, size is %08x\n",
2656 		   name, image->data, (u32)image->size);
2657 	data = image->data;
2658 	data_end = data + image->size;
2659 
2660 	rc = qed_nvm_flash_image_validate(cdev, image, &data);
2661 	if (rc)
2662 		goto exit;
2663 
2664 	while (data < data_end) {
2665 		bool check_resp = false;
2666 
2667 		/* Parse the actual command */
2668 		cmd_type = *((u32 *)data);
2669 		switch (cmd_type) {
2670 		case QED_NVM_FLASH_CMD_FILE_DATA:
2671 			rc = qed_nvm_flash_image_file_data(cdev, &data,
2672 							   &check_resp);
2673 			break;
2674 		case QED_NVM_FLASH_CMD_FILE_START:
2675 			rc = qed_nvm_flash_image_file_start(cdev, &data,
2676 							    &check_resp);
2677 			break;
2678 		case QED_NVM_FLASH_CMD_NVM_CHANGE:
2679 			rc = qed_nvm_flash_image_access(cdev, &data,
2680 							&check_resp);
2681 			break;
2682 		case QED_NVM_FLASH_CMD_NVM_CFG_ID:
2683 			rc = qed_nvm_flash_cfg_write(cdev, &data);
2684 			break;
2685 		default:
2686 			DP_ERR(cdev, "Unknown command %08x\n", cmd_type);
2687 			rc = -EINVAL;
2688 			goto exit;
2689 		}
2690 
2691 		if (rc) {
2692 			DP_ERR(cdev, "Command %08x failed\n", cmd_type);
2693 			goto exit;
2694 		}
2695 
2696 		/* Check response if needed */
2697 		if (check_resp) {
2698 			u32 mcp_response = 0;
2699 
2700 			if (qed_mcp_nvm_resp(cdev, (u8 *)&mcp_response)) {
2701 				DP_ERR(cdev, "Failed getting MCP response\n");
2702 				rc = -EINVAL;
2703 				goto exit;
2704 			}
2705 
2706 			switch (mcp_response & FW_MSG_CODE_MASK) {
2707 			case FW_MSG_CODE_OK:
2708 			case FW_MSG_CODE_NVM_OK:
2709 			case FW_MSG_CODE_NVM_PUT_FILE_FINISH_OK:
2710 			case FW_MSG_CODE_PHY_OK:
2711 				break;
2712 			default:
2713 				DP_ERR(cdev, "MFW returns error: %08x\n",
2714 				       mcp_response);
2715 				rc = -EINVAL;
2716 				goto exit;
2717 			}
2718 		}
2719 	}
2720 
2721 exit:
2722 	release_firmware(image);
2723 
2724 	return rc;
2725 }
2726 
qed_nvm_get_image(struct qed_dev * cdev,enum qed_nvm_images type,u8 * buf,u16 len)2727 static int qed_nvm_get_image(struct qed_dev *cdev, enum qed_nvm_images type,
2728 			     u8 *buf, u16 len)
2729 {
2730 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2731 
2732 	return qed_mcp_get_nvm_image(hwfn, type, buf, len);
2733 }
2734 
qed_schedule_recovery_handler(struct qed_hwfn * p_hwfn)2735 void qed_schedule_recovery_handler(struct qed_hwfn *p_hwfn)
2736 {
2737 	struct qed_common_cb_ops *ops = p_hwfn->cdev->protocol_ops.common;
2738 	void *cookie = p_hwfn->cdev->ops_cookie;
2739 
2740 	if (ops && ops->schedule_recovery_handler)
2741 		ops->schedule_recovery_handler(cookie);
2742 }
2743 
2744 static const char * const qed_hw_err_type_descr[] = {
2745 	[QED_HW_ERR_FAN_FAIL]		= "Fan Failure",
2746 	[QED_HW_ERR_MFW_RESP_FAIL]	= "MFW Response Failure",
2747 	[QED_HW_ERR_HW_ATTN]		= "HW Attention",
2748 	[QED_HW_ERR_DMAE_FAIL]		= "DMAE Failure",
2749 	[QED_HW_ERR_RAMROD_FAIL]	= "Ramrod Failure",
2750 	[QED_HW_ERR_FW_ASSERT]		= "FW Assertion",
2751 	[QED_HW_ERR_LAST]		= "Unknown",
2752 };
2753 
qed_hw_error_occurred(struct qed_hwfn * p_hwfn,enum qed_hw_err_type err_type)2754 void qed_hw_error_occurred(struct qed_hwfn *p_hwfn,
2755 			   enum qed_hw_err_type err_type)
2756 {
2757 	struct qed_common_cb_ops *ops = p_hwfn->cdev->protocol_ops.common;
2758 	void *cookie = p_hwfn->cdev->ops_cookie;
2759 	const char *err_str;
2760 
2761 	if (err_type > QED_HW_ERR_LAST)
2762 		err_type = QED_HW_ERR_LAST;
2763 	err_str = qed_hw_err_type_descr[err_type];
2764 
2765 	DP_NOTICE(p_hwfn, "HW error occurred [%s]\n", err_str);
2766 
2767 	/* Call the HW error handler of the protocol driver.
2768 	 * If it is not available - perform a minimal handling of preventing
2769 	 * HW attentions from being reasserted.
2770 	 */
2771 	if (ops && ops->schedule_hw_err_handler)
2772 		ops->schedule_hw_err_handler(cookie, err_type);
2773 	else
2774 		qed_int_attn_clr_enable(p_hwfn->cdev, true);
2775 }
2776 
qed_set_coalesce(struct qed_dev * cdev,u16 rx_coal,u16 tx_coal,void * handle)2777 static int qed_set_coalesce(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
2778 			    void *handle)
2779 {
2780 		return qed_set_queue_coalesce(rx_coal, tx_coal, handle);
2781 }
2782 
qed_set_led(struct qed_dev * cdev,enum qed_led_mode mode)2783 static int qed_set_led(struct qed_dev *cdev, enum qed_led_mode mode)
2784 {
2785 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2786 	struct qed_ptt *ptt;
2787 	int status = 0;
2788 
2789 	ptt = qed_ptt_acquire(hwfn);
2790 	if (!ptt)
2791 		return -EAGAIN;
2792 
2793 	status = qed_mcp_set_led(hwfn, ptt, mode);
2794 
2795 	qed_ptt_release(hwfn, ptt);
2796 
2797 	return status;
2798 }
2799 
qed_recovery_process(struct qed_dev * cdev)2800 int qed_recovery_process(struct qed_dev *cdev)
2801 {
2802 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
2803 	struct qed_ptt *p_ptt;
2804 	int rc = 0;
2805 
2806 	p_ptt = qed_ptt_acquire(p_hwfn);
2807 	if (!p_ptt)
2808 		return -EAGAIN;
2809 
2810 	rc = qed_start_recovery_process(p_hwfn, p_ptt);
2811 
2812 	qed_ptt_release(p_hwfn, p_ptt);
2813 
2814 	return rc;
2815 }
2816 
qed_update_wol(struct qed_dev * cdev,bool enabled)2817 static int qed_update_wol(struct qed_dev *cdev, bool enabled)
2818 {
2819 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2820 	struct qed_ptt *ptt;
2821 	int rc = 0;
2822 
2823 	if (IS_VF(cdev))
2824 		return 0;
2825 
2826 	ptt = qed_ptt_acquire(hwfn);
2827 	if (!ptt)
2828 		return -EAGAIN;
2829 
2830 	rc = qed_mcp_ov_update_wol(hwfn, ptt, enabled ? QED_OV_WOL_ENABLED
2831 				   : QED_OV_WOL_DISABLED);
2832 	if (rc)
2833 		goto out;
2834 	rc = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2835 
2836 out:
2837 	qed_ptt_release(hwfn, ptt);
2838 	return rc;
2839 }
2840 
qed_update_drv_state(struct qed_dev * cdev,bool active)2841 static int qed_update_drv_state(struct qed_dev *cdev, bool active)
2842 {
2843 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2844 	struct qed_ptt *ptt;
2845 	int status = 0;
2846 
2847 	if (IS_VF(cdev))
2848 		return 0;
2849 
2850 	ptt = qed_ptt_acquire(hwfn);
2851 	if (!ptt)
2852 		return -EAGAIN;
2853 
2854 	status = qed_mcp_ov_update_driver_state(hwfn, ptt, active ?
2855 						QED_OV_DRIVER_STATE_ACTIVE :
2856 						QED_OV_DRIVER_STATE_DISABLED);
2857 
2858 	qed_ptt_release(hwfn, ptt);
2859 
2860 	return status;
2861 }
2862 
qed_update_mac(struct qed_dev * cdev,const u8 * mac)2863 static int qed_update_mac(struct qed_dev *cdev, const u8 *mac)
2864 {
2865 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2866 	struct qed_ptt *ptt;
2867 	int status = 0;
2868 
2869 	if (IS_VF(cdev))
2870 		return 0;
2871 
2872 	ptt = qed_ptt_acquire(hwfn);
2873 	if (!ptt)
2874 		return -EAGAIN;
2875 
2876 	status = qed_mcp_ov_update_mac(hwfn, ptt, mac);
2877 	if (status)
2878 		goto out;
2879 
2880 	status = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2881 
2882 out:
2883 	qed_ptt_release(hwfn, ptt);
2884 	return status;
2885 }
2886 
qed_update_mtu(struct qed_dev * cdev,u16 mtu)2887 static int qed_update_mtu(struct qed_dev *cdev, u16 mtu)
2888 {
2889 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2890 	struct qed_ptt *ptt;
2891 	int status = 0;
2892 
2893 	if (IS_VF(cdev))
2894 		return 0;
2895 
2896 	ptt = qed_ptt_acquire(hwfn);
2897 	if (!ptt)
2898 		return -EAGAIN;
2899 
2900 	status = qed_mcp_ov_update_mtu(hwfn, ptt, mtu);
2901 	if (status)
2902 		goto out;
2903 
2904 	status = qed_mcp_ov_update_current_config(hwfn, ptt, QED_OV_CLIENT_DRV);
2905 
2906 out:
2907 	qed_ptt_release(hwfn, ptt);
2908 	return status;
2909 }
2910 
2911 static int
qed_get_sb_info(struct qed_dev * cdev,struct qed_sb_info * sb,u16 qid,struct qed_sb_info_dbg * sb_dbg)2912 qed_get_sb_info(struct qed_dev *cdev, struct qed_sb_info *sb,
2913 		u16 qid, struct qed_sb_info_dbg *sb_dbg)
2914 {
2915 	struct qed_hwfn *hwfn = &cdev->hwfns[qid % cdev->num_hwfns];
2916 	struct qed_ptt *ptt;
2917 	int rc;
2918 
2919 	if (IS_VF(cdev))
2920 		return -EINVAL;
2921 
2922 	ptt = qed_ptt_acquire(hwfn);
2923 	if (!ptt) {
2924 		DP_NOTICE(hwfn, "Can't acquire PTT\n");
2925 		return -EAGAIN;
2926 	}
2927 
2928 	memset(sb_dbg, 0, sizeof(*sb_dbg));
2929 	rc = qed_int_get_sb_dbg(hwfn, ptt, sb, sb_dbg);
2930 
2931 	qed_ptt_release(hwfn, ptt);
2932 	return rc;
2933 }
2934 
qed_read_module_eeprom(struct qed_dev * cdev,char * buf,u8 dev_addr,u32 offset,u32 len)2935 static int qed_read_module_eeprom(struct qed_dev *cdev, char *buf,
2936 				  u8 dev_addr, u32 offset, u32 len)
2937 {
2938 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2939 	struct qed_ptt *ptt;
2940 	int rc = 0;
2941 
2942 	if (IS_VF(cdev))
2943 		return 0;
2944 
2945 	ptt = qed_ptt_acquire(hwfn);
2946 	if (!ptt)
2947 		return -EAGAIN;
2948 
2949 	rc = qed_mcp_phy_sfp_read(hwfn, ptt, MFW_PORT(hwfn), dev_addr,
2950 				  offset, len, buf);
2951 
2952 	qed_ptt_release(hwfn, ptt);
2953 
2954 	return rc;
2955 }
2956 
qed_set_grc_config(struct qed_dev * cdev,u32 cfg_id,u32 val)2957 static int qed_set_grc_config(struct qed_dev *cdev, u32 cfg_id, u32 val)
2958 {
2959 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2960 	struct qed_ptt *ptt;
2961 	int rc = 0;
2962 
2963 	if (IS_VF(cdev))
2964 		return 0;
2965 
2966 	ptt = qed_ptt_acquire(hwfn);
2967 	if (!ptt)
2968 		return -EAGAIN;
2969 
2970 	rc = qed_dbg_grc_config(hwfn, cfg_id, val);
2971 
2972 	qed_ptt_release(hwfn, ptt);
2973 
2974 	return rc;
2975 }
2976 
qed_mfw_report(struct qed_dev * cdev,char * fmt,...)2977 static __printf(2, 3) void qed_mfw_report(struct qed_dev *cdev, char *fmt, ...)
2978 {
2979 	char buf[QED_MFW_REPORT_STR_SIZE];
2980 	struct qed_hwfn *p_hwfn;
2981 	struct qed_ptt *p_ptt;
2982 	va_list vl;
2983 
2984 	va_start(vl, fmt);
2985 	vsnprintf(buf, QED_MFW_REPORT_STR_SIZE, fmt, vl);
2986 	va_end(vl);
2987 
2988 	if (IS_PF(cdev)) {
2989 		p_hwfn = QED_LEADING_HWFN(cdev);
2990 		p_ptt = qed_ptt_acquire(p_hwfn);
2991 		if (p_ptt) {
2992 			qed_mcp_send_raw_debug_data(p_hwfn, p_ptt, buf, strlen(buf));
2993 			qed_ptt_release(p_hwfn, p_ptt);
2994 		}
2995 	}
2996 }
2997 
qed_get_affin_hwfn_idx(struct qed_dev * cdev)2998 static u8 qed_get_affin_hwfn_idx(struct qed_dev *cdev)
2999 {
3000 	return QED_AFFIN_HWFN_IDX(cdev);
3001 }
3002 
qed_get_esl_status(struct qed_dev * cdev,bool * esl_active)3003 static int qed_get_esl_status(struct qed_dev *cdev, bool *esl_active)
3004 {
3005 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
3006 	struct qed_ptt *ptt;
3007 	int rc = 0;
3008 
3009 	*esl_active = false;
3010 
3011 	if (IS_VF(cdev))
3012 		return 0;
3013 
3014 	ptt = qed_ptt_acquire(hwfn);
3015 	if (!ptt)
3016 		return -EAGAIN;
3017 
3018 	rc = qed_mcp_get_esl_status(hwfn, ptt, esl_active);
3019 
3020 	qed_ptt_release(hwfn, ptt);
3021 
3022 	return rc;
3023 }
3024 
3025 static struct qed_selftest_ops qed_selftest_ops_pass = {
3026 	.selftest_memory = &qed_selftest_memory,
3027 	.selftest_interrupt = &qed_selftest_interrupt,
3028 	.selftest_register = &qed_selftest_register,
3029 	.selftest_clock = &qed_selftest_clock,
3030 	.selftest_nvram = &qed_selftest_nvram,
3031 };
3032 
3033 const struct qed_common_ops qed_common_ops_pass = {
3034 	.selftest = &qed_selftest_ops_pass,
3035 	.probe = &qed_probe,
3036 	.remove = &qed_remove,
3037 	.set_power_state = &qed_set_power_state,
3038 	.set_name = &qed_set_name,
3039 	.update_pf_params = &qed_update_pf_params,
3040 	.slowpath_start = &qed_slowpath_start,
3041 	.slowpath_stop = &qed_slowpath_stop,
3042 	.set_fp_int = &qed_set_int_fp,
3043 	.get_fp_int = &qed_get_int_fp,
3044 	.sb_init = &qed_sb_init,
3045 	.sb_release = &qed_sb_release,
3046 	.simd_handler_config = &qed_simd_handler_config,
3047 	.simd_handler_clean = &qed_simd_handler_clean,
3048 	.dbg_grc = &qed_dbg_grc,
3049 	.dbg_grc_size = &qed_dbg_grc_size,
3050 	.can_link_change = &qed_can_link_change,
3051 	.set_link = &qed_set_link,
3052 	.get_link = &qed_get_current_link,
3053 	.drain = &qed_drain,
3054 	.update_msglvl = &qed_init_dp,
3055 	.devlink_register = qed_devlink_register,
3056 	.devlink_unregister = qed_devlink_unregister,
3057 	.report_fatal_error = qed_report_fatal_error,
3058 	.dbg_all_data = &qed_dbg_all_data,
3059 	.dbg_all_data_size = &qed_dbg_all_data_size,
3060 	.chain_alloc = &qed_chain_alloc,
3061 	.chain_free = &qed_chain_free,
3062 	.nvm_flash = &qed_nvm_flash,
3063 	.nvm_get_image = &qed_nvm_get_image,
3064 	.set_coalesce = &qed_set_coalesce,
3065 	.set_led = &qed_set_led,
3066 	.recovery_process = &qed_recovery_process,
3067 	.recovery_prolog = &qed_recovery_prolog,
3068 	.attn_clr_enable = &qed_int_attn_clr_enable,
3069 	.update_drv_state = &qed_update_drv_state,
3070 	.update_mac = &qed_update_mac,
3071 	.update_mtu = &qed_update_mtu,
3072 	.update_wol = &qed_update_wol,
3073 	.db_recovery_add = &qed_db_recovery_add,
3074 	.db_recovery_del = &qed_db_recovery_del,
3075 	.read_module_eeprom = &qed_read_module_eeprom,
3076 	.get_affin_hwfn_idx = &qed_get_affin_hwfn_idx,
3077 	.read_nvm_cfg = &qed_nvm_flash_cfg_read,
3078 	.read_nvm_cfg_len = &qed_nvm_flash_cfg_len,
3079 	.set_grc_config = &qed_set_grc_config,
3080 	.mfw_report = &qed_mfw_report,
3081 	.get_sb_info = &qed_get_sb_info,
3082 	.get_esl_status = &qed_get_esl_status,
3083 };
3084 
qed_get_protocol_stats(struct qed_dev * cdev,enum qed_mcp_protocol_type type,union qed_mcp_protocol_stats * stats)3085 void qed_get_protocol_stats(struct qed_dev *cdev,
3086 			    enum qed_mcp_protocol_type type,
3087 			    union qed_mcp_protocol_stats *stats)
3088 {
3089 	struct qed_eth_stats eth_stats;
3090 
3091 	memset(stats, 0, sizeof(*stats));
3092 
3093 	switch (type) {
3094 	case QED_MCP_LAN_STATS:
3095 		qed_get_vport_stats_context(cdev, &eth_stats, true);
3096 		stats->lan_stats.ucast_rx_pkts =
3097 					eth_stats.common.rx_ucast_pkts;
3098 		stats->lan_stats.ucast_tx_pkts =
3099 					eth_stats.common.tx_ucast_pkts;
3100 		stats->lan_stats.fcs_err = -1;
3101 		break;
3102 	case QED_MCP_FCOE_STATS:
3103 		qed_get_protocol_stats_fcoe(cdev, &stats->fcoe_stats, true);
3104 		break;
3105 	case QED_MCP_ISCSI_STATS:
3106 		qed_get_protocol_stats_iscsi(cdev, &stats->iscsi_stats, true);
3107 		break;
3108 	default:
3109 		DP_VERBOSE(cdev, QED_MSG_SP,
3110 			   "Invalid protocol type = %d\n", type);
3111 		return;
3112 	}
3113 }
3114 
qed_mfw_tlv_req(struct qed_hwfn * hwfn)3115 int qed_mfw_tlv_req(struct qed_hwfn *hwfn)
3116 {
3117 	DP_VERBOSE(hwfn->cdev, NETIF_MSG_DRV,
3118 		   "Scheduling slowpath task [Flag: %d]\n",
3119 		   QED_SLOWPATH_MFW_TLV_REQ);
3120 	/* Memory barrier for setting atomic bit */
3121 	smp_mb__before_atomic();
3122 	set_bit(QED_SLOWPATH_MFW_TLV_REQ, &hwfn->slowpath_task_flags);
3123 	/* Memory barrier after setting atomic bit */
3124 	smp_mb__after_atomic();
3125 	queue_delayed_work(hwfn->slowpath_wq, &hwfn->slowpath_task, 0);
3126 
3127 	return 0;
3128 }
3129 
3130 static void
qed_fill_generic_tlv_data(struct qed_dev * cdev,struct qed_mfw_tlv_generic * tlv)3131 qed_fill_generic_tlv_data(struct qed_dev *cdev, struct qed_mfw_tlv_generic *tlv)
3132 {
3133 	struct qed_common_cb_ops *op = cdev->protocol_ops.common;
3134 	struct qed_eth_stats_common *p_common;
3135 	struct qed_generic_tlvs gen_tlvs;
3136 	struct qed_eth_stats stats;
3137 	int i;
3138 
3139 	memset(&gen_tlvs, 0, sizeof(gen_tlvs));
3140 	op->get_generic_tlv_data(cdev->ops_cookie, &gen_tlvs);
3141 
3142 	if (gen_tlvs.feat_flags & QED_TLV_IP_CSUM)
3143 		tlv->flags.ipv4_csum_offload = true;
3144 	if (gen_tlvs.feat_flags & QED_TLV_LSO)
3145 		tlv->flags.lso_supported = true;
3146 	tlv->flags.b_set = true;
3147 
3148 	for (i = 0; i < QED_TLV_MAC_COUNT; i++) {
3149 		if (is_valid_ether_addr(gen_tlvs.mac[i])) {
3150 			ether_addr_copy(tlv->mac[i], gen_tlvs.mac[i]);
3151 			tlv->mac_set[i] = true;
3152 		}
3153 	}
3154 
3155 	qed_get_vport_stats(cdev, &stats);
3156 	p_common = &stats.common;
3157 	tlv->rx_frames = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
3158 			 p_common->rx_bcast_pkts;
3159 	tlv->rx_frames_set = true;
3160 	tlv->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
3161 			p_common->rx_bcast_bytes;
3162 	tlv->rx_bytes_set = true;
3163 	tlv->tx_frames = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
3164 			 p_common->tx_bcast_pkts;
3165 	tlv->tx_frames_set = true;
3166 	tlv->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
3167 			p_common->tx_bcast_bytes;
3168 	tlv->rx_bytes_set = true;
3169 }
3170 
qed_mfw_fill_tlv_data(struct qed_hwfn * hwfn,enum qed_mfw_tlv_type type,union qed_mfw_tlv_data * tlv_buf)3171 int qed_mfw_fill_tlv_data(struct qed_hwfn *hwfn, enum qed_mfw_tlv_type type,
3172 			  union qed_mfw_tlv_data *tlv_buf)
3173 {
3174 	struct qed_dev *cdev = hwfn->cdev;
3175 	struct qed_common_cb_ops *ops;
3176 
3177 	ops = cdev->protocol_ops.common;
3178 	if (!ops || !ops->get_protocol_tlv_data || !ops->get_generic_tlv_data) {
3179 		DP_NOTICE(hwfn, "Can't collect TLV management info\n");
3180 		return -EINVAL;
3181 	}
3182 
3183 	switch (type) {
3184 	case QED_MFW_TLV_GENERIC:
3185 		qed_fill_generic_tlv_data(hwfn->cdev, &tlv_buf->generic);
3186 		break;
3187 	case QED_MFW_TLV_ETH:
3188 		ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->eth);
3189 		break;
3190 	case QED_MFW_TLV_FCOE:
3191 		ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->fcoe);
3192 		break;
3193 	case QED_MFW_TLV_ISCSI:
3194 		ops->get_protocol_tlv_data(cdev->ops_cookie, &tlv_buf->iscsi);
3195 		break;
3196 	default:
3197 		break;
3198 	}
3199 
3200 	return 0;
3201 }
3202 
qed_get_epoch_time(void)3203 unsigned long qed_get_epoch_time(void)
3204 {
3205 	return ktime_get_real_seconds();
3206 }
3207