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/crc32.h>
8 #include <linux/etherdevice.h>
9 #include "qed.h"
10 #include "qed_sriov.h"
11 #include "qed_vf.h"
12 
qed_vf_pf_prep(struct qed_hwfn * p_hwfn,u16 type,u16 length)13 static void *qed_vf_pf_prep(struct qed_hwfn *p_hwfn, u16 type, u16 length)
14 {
15 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
16 	void *p_tlv;
17 
18 	/* This lock is released when we receive PF's response
19 	 * in qed_send_msg2pf().
20 	 * So, qed_vf_pf_prep() and qed_send_msg2pf()
21 	 * must come in sequence.
22 	 */
23 	mutex_lock(&(p_iov->mutex));
24 
25 	DP_VERBOSE(p_hwfn,
26 		   QED_MSG_IOV,
27 		   "preparing to send 0x%04x tlv over vf pf channel\n",
28 		   type);
29 
30 	/* Reset Request offset */
31 	p_iov->offset = (u8 *)p_iov->vf2pf_request;
32 
33 	/* Clear mailbox - both request and reply */
34 	memset(p_iov->vf2pf_request, 0, sizeof(union vfpf_tlvs));
35 	memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
36 
37 	/* Init type and length */
38 	p_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, type, length);
39 
40 	/* Init first tlv header */
41 	((struct vfpf_first_tlv *)p_tlv)->reply_address =
42 	    (u64)p_iov->pf2vf_reply_phys;
43 
44 	return p_tlv;
45 }
46 
qed_vf_pf_req_end(struct qed_hwfn * p_hwfn,int req_status)47 static void qed_vf_pf_req_end(struct qed_hwfn *p_hwfn, int req_status)
48 {
49 	union pfvf_tlvs *resp = p_hwfn->vf_iov_info->pf2vf_reply;
50 
51 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
52 		   "VF request status = 0x%x, PF reply status = 0x%x\n",
53 		   req_status, resp->default_resp.hdr.status);
54 
55 	mutex_unlock(&(p_hwfn->vf_iov_info->mutex));
56 }
57 
58 #define QED_VF_CHANNEL_USLEEP_ITERATIONS	90
59 #define QED_VF_CHANNEL_USLEEP_DELAY		100
60 #define QED_VF_CHANNEL_MSLEEP_ITERATIONS	10
61 #define QED_VF_CHANNEL_MSLEEP_DELAY		25
62 
qed_send_msg2pf(struct qed_hwfn * p_hwfn,u8 * done,u32 resp_size)63 static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size)
64 {
65 	union vfpf_tlvs *p_req = p_hwfn->vf_iov_info->vf2pf_request;
66 	struct ustorm_trigger_vf_zone trigger;
67 	struct ustorm_vf_zone *zone_data;
68 	int iter, rc = 0;
69 
70 	zone_data = (struct ustorm_vf_zone *)PXP_VF_BAR0_START_USDM_ZONE_B;
71 
72 	/* output tlvs list */
73 	qed_dp_tlv_list(p_hwfn, p_req);
74 
75 	/* need to add the END TLV to the message size */
76 	resp_size += sizeof(struct channel_list_end_tlv);
77 
78 	/* Send TLVs over HW channel */
79 	memset(&trigger, 0, sizeof(struct ustorm_trigger_vf_zone));
80 	trigger.vf_pf_msg_valid = 1;
81 
82 	DP_VERBOSE(p_hwfn,
83 		   QED_MSG_IOV,
84 		   "VF -> PF [%02x] message: [%08x, %08x] --> %p, %08x --> %p\n",
85 		   GET_FIELD(p_hwfn->hw_info.concrete_fid,
86 			     PXP_CONCRETE_FID_PFID),
87 		   upper_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys),
88 		   lower_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys),
89 		   &zone_data->non_trigger.vf_pf_msg_addr,
90 		   *((u32 *)&trigger), &zone_data->trigger);
91 
92 	REG_WR(p_hwfn,
93 	       (uintptr_t)&zone_data->non_trigger.vf_pf_msg_addr.lo,
94 	       lower_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys));
95 
96 	REG_WR(p_hwfn,
97 	       (uintptr_t)&zone_data->non_trigger.vf_pf_msg_addr.hi,
98 	       upper_32_bits(p_hwfn->vf_iov_info->vf2pf_request_phys));
99 
100 	/* The message data must be written first, to prevent trigger before
101 	 * data is written.
102 	 */
103 	wmb();
104 
105 	REG_WR(p_hwfn, (uintptr_t)&zone_data->trigger, *((u32 *)&trigger));
106 
107 	/* When PF would be done with the response, it would write back to the
108 	 * `done' address from a coherent DMA zone. Poll until then.
109 	 */
110 
111 	iter = QED_VF_CHANNEL_USLEEP_ITERATIONS;
112 	while (!*done && iter--) {
113 		udelay(QED_VF_CHANNEL_USLEEP_DELAY);
114 		dma_rmb();
115 	}
116 
117 	iter = QED_VF_CHANNEL_MSLEEP_ITERATIONS;
118 	while (!*done && iter--) {
119 		msleep(QED_VF_CHANNEL_MSLEEP_DELAY);
120 		dma_rmb();
121 	}
122 
123 	if (!*done) {
124 		DP_NOTICE(p_hwfn,
125 			  "VF <-- PF Timeout [Type %d]\n",
126 			  p_req->first_tlv.tl.type);
127 		rc = -EBUSY;
128 	} else {
129 		if ((*done != PFVF_STATUS_SUCCESS) &&
130 		    (*done != PFVF_STATUS_NO_RESOURCE))
131 			DP_NOTICE(p_hwfn,
132 				  "PF response: %d [Type %d]\n",
133 				  *done, p_req->first_tlv.tl.type);
134 		else
135 			DP_VERBOSE(p_hwfn, QED_MSG_IOV,
136 				   "PF response: %d [Type %d]\n",
137 				   *done, p_req->first_tlv.tl.type);
138 	}
139 
140 	return rc;
141 }
142 
qed_vf_pf_add_qid(struct qed_hwfn * p_hwfn,struct qed_queue_cid * p_cid)143 static void qed_vf_pf_add_qid(struct qed_hwfn *p_hwfn,
144 			      struct qed_queue_cid *p_cid)
145 {
146 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
147 	struct vfpf_qid_tlv *p_qid_tlv;
148 
149 	/* Only add QIDs for the queue if it was negotiated with PF */
150 	if (!(p_iov->acquire_resp.pfdev_info.capabilities &
151 	      PFVF_ACQUIRE_CAP_QUEUE_QIDS))
152 		return;
153 
154 	p_qid_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
155 				CHANNEL_TLV_QID, sizeof(*p_qid_tlv));
156 	p_qid_tlv->qid = p_cid->qid_usage_idx;
157 }
158 
_qed_vf_pf_release(struct qed_hwfn * p_hwfn,bool b_final)159 static int _qed_vf_pf_release(struct qed_hwfn *p_hwfn, bool b_final)
160 {
161 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
162 	struct pfvf_def_resp_tlv *resp;
163 	struct vfpf_first_tlv *req;
164 	u32 size;
165 	int rc;
166 
167 	/* clear mailbox and prep first tlv */
168 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_RELEASE, sizeof(*req));
169 
170 	/* add list termination tlv */
171 	qed_add_tlv(p_hwfn, &p_iov->offset,
172 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
173 
174 	resp = &p_iov->pf2vf_reply->default_resp;
175 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
176 
177 	if (!rc && resp->hdr.status != PFVF_STATUS_SUCCESS)
178 		rc = -EAGAIN;
179 
180 	qed_vf_pf_req_end(p_hwfn, rc);
181 	if (!b_final)
182 		return rc;
183 
184 	p_hwfn->b_int_enabled = 0;
185 
186 	if (p_iov->vf2pf_request)
187 		dma_free_coherent(&p_hwfn->cdev->pdev->dev,
188 				  sizeof(union vfpf_tlvs),
189 				  p_iov->vf2pf_request,
190 				  p_iov->vf2pf_request_phys);
191 	if (p_iov->pf2vf_reply)
192 		dma_free_coherent(&p_hwfn->cdev->pdev->dev,
193 				  sizeof(union pfvf_tlvs),
194 				  p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
195 
196 	if (p_iov->bulletin.p_virt) {
197 		size = sizeof(struct qed_bulletin_content);
198 		dma_free_coherent(&p_hwfn->cdev->pdev->dev,
199 				  size,
200 				  p_iov->bulletin.p_virt, p_iov->bulletin.phys);
201 	}
202 
203 	kfree(p_hwfn->vf_iov_info);
204 	p_hwfn->vf_iov_info = NULL;
205 
206 	return rc;
207 }
208 
qed_vf_pf_release(struct qed_hwfn * p_hwfn)209 int qed_vf_pf_release(struct qed_hwfn *p_hwfn)
210 {
211 	return _qed_vf_pf_release(p_hwfn, true);
212 }
213 
214 #define VF_ACQUIRE_THRESH 3
qed_vf_pf_acquire_reduce_resc(struct qed_hwfn * p_hwfn,struct vf_pf_resc_request * p_req,struct pf_vf_resc * p_resp)215 static void qed_vf_pf_acquire_reduce_resc(struct qed_hwfn *p_hwfn,
216 					  struct vf_pf_resc_request *p_req,
217 					  struct pf_vf_resc *p_resp)
218 {
219 	DP_VERBOSE(p_hwfn,
220 		   QED_MSG_IOV,
221 		   "PF unwilling to fulfill resource request: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x] cids [%02x/%02x]. Try PF recommended amount\n",
222 		   p_req->num_rxqs,
223 		   p_resp->num_rxqs,
224 		   p_req->num_rxqs,
225 		   p_resp->num_txqs,
226 		   p_req->num_sbs,
227 		   p_resp->num_sbs,
228 		   p_req->num_mac_filters,
229 		   p_resp->num_mac_filters,
230 		   p_req->num_vlan_filters,
231 		   p_resp->num_vlan_filters,
232 		   p_req->num_mc_filters,
233 		   p_resp->num_mc_filters, p_req->num_cids, p_resp->num_cids);
234 
235 	/* humble our request */
236 	p_req->num_txqs = p_resp->num_txqs;
237 	p_req->num_rxqs = p_resp->num_rxqs;
238 	p_req->num_sbs = p_resp->num_sbs;
239 	p_req->num_mac_filters = p_resp->num_mac_filters;
240 	p_req->num_vlan_filters = p_resp->num_vlan_filters;
241 	p_req->num_mc_filters = p_resp->num_mc_filters;
242 	p_req->num_cids = p_resp->num_cids;
243 }
244 
qed_vf_pf_acquire(struct qed_hwfn * p_hwfn)245 static int qed_vf_pf_acquire(struct qed_hwfn *p_hwfn)
246 {
247 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
248 	struct pfvf_acquire_resp_tlv *resp = &p_iov->pf2vf_reply->acquire_resp;
249 	struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
250 	struct vf_pf_resc_request *p_resc;
251 	u8 retry_cnt = VF_ACQUIRE_THRESH;
252 	bool resources_acquired = false;
253 	struct vfpf_acquire_tlv *req;
254 	int rc = 0, attempts = 0;
255 
256 	/* clear mailbox and prep first tlv */
257 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_ACQUIRE, sizeof(*req));
258 	p_resc = &req->resc_request;
259 
260 	/* starting filling the request */
261 	req->vfdev_info.opaque_fid = p_hwfn->hw_info.opaque_fid;
262 
263 	p_resc->num_rxqs = QED_MAX_VF_CHAINS_PER_PF;
264 	p_resc->num_txqs = QED_MAX_VF_CHAINS_PER_PF;
265 	p_resc->num_sbs = QED_MAX_VF_CHAINS_PER_PF;
266 	p_resc->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
267 	p_resc->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
268 	p_resc->num_cids = QED_ETH_VF_DEFAULT_NUM_CIDS;
269 
270 	req->vfdev_info.os_type = VFPF_ACQUIRE_OS_LINUX;
271 	req->vfdev_info.fw_major = FW_MAJOR_VERSION;
272 	req->vfdev_info.fw_minor = FW_MINOR_VERSION;
273 	req->vfdev_info.fw_revision = FW_REVISION_VERSION;
274 	req->vfdev_info.fw_engineering = FW_ENGINEERING_VERSION;
275 	req->vfdev_info.eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
276 	req->vfdev_info.eth_fp_hsi_minor = ETH_HSI_VER_MINOR;
277 
278 	/* Fill capability field with any non-deprecated config we support */
279 	req->vfdev_info.capabilities |= VFPF_ACQUIRE_CAP_100G;
280 
281 	/* If we've mapped the doorbell bar, try using queue qids */
282 	if (p_iov->b_doorbell_bar) {
283 		req->vfdev_info.capabilities |= VFPF_ACQUIRE_CAP_PHYSICAL_BAR |
284 						VFPF_ACQUIRE_CAP_QUEUE_QIDS;
285 		p_resc->num_cids = QED_ETH_VF_MAX_NUM_CIDS;
286 	}
287 
288 	/* pf 2 vf bulletin board address */
289 	req->bulletin_addr = p_iov->bulletin.phys;
290 	req->bulletin_size = p_iov->bulletin.size;
291 
292 	/* add list termination tlv */
293 	qed_add_tlv(p_hwfn, &p_iov->offset,
294 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
295 
296 	while (!resources_acquired) {
297 		DP_VERBOSE(p_hwfn,
298 			   QED_MSG_IOV, "attempting to acquire resources\n");
299 
300 		/* Clear response buffer, as this might be a re-send */
301 		memset(p_iov->pf2vf_reply, 0, sizeof(union pfvf_tlvs));
302 
303 		/* send acquire request */
304 		rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
305 
306 		/* Re-try acquire in case of vf-pf hw channel timeout */
307 		if (retry_cnt && rc == -EBUSY) {
308 			DP_VERBOSE(p_hwfn, QED_MSG_IOV,
309 				   "VF retrying to acquire due to VPC timeout\n");
310 			retry_cnt--;
311 			continue;
312 		}
313 
314 		if (rc)
315 			goto exit;
316 
317 		/* copy acquire response from buffer to p_hwfn */
318 		memcpy(&p_iov->acquire_resp, resp, sizeof(p_iov->acquire_resp));
319 
320 		attempts++;
321 
322 		if (resp->hdr.status == PFVF_STATUS_SUCCESS) {
323 			/* PF agrees to allocate our resources */
324 			if (!(resp->pfdev_info.capabilities &
325 			      PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE)) {
326 				/* It's possible legacy PF mistakenly accepted;
327 				 * but we don't care - simply mark it as
328 				 * legacy and continue.
329 				 */
330 				req->vfdev_info.capabilities |=
331 				    VFPF_ACQUIRE_CAP_PRE_FP_HSI;
332 			}
333 			DP_VERBOSE(p_hwfn, QED_MSG_IOV, "resources acquired\n");
334 			resources_acquired = true;
335 		} else if (resp->hdr.status == PFVF_STATUS_NO_RESOURCE &&
336 			   attempts < VF_ACQUIRE_THRESH) {
337 			qed_vf_pf_acquire_reduce_resc(p_hwfn, p_resc,
338 						      &resp->resc);
339 		} else if (resp->hdr.status == PFVF_STATUS_NOT_SUPPORTED) {
340 			if (pfdev_info->major_fp_hsi &&
341 			    (pfdev_info->major_fp_hsi != ETH_HSI_VER_MAJOR)) {
342 				DP_NOTICE(p_hwfn,
343 					  "PF uses an incompatible fastpath HSI %02x.%02x [VF requires %02x.%02x]. Please change to a VF driver using %02x.xx.\n",
344 					  pfdev_info->major_fp_hsi,
345 					  pfdev_info->minor_fp_hsi,
346 					  ETH_HSI_VER_MAJOR,
347 					  ETH_HSI_VER_MINOR,
348 					  pfdev_info->major_fp_hsi);
349 				rc = -EINVAL;
350 				goto exit;
351 			}
352 
353 			if (!pfdev_info->major_fp_hsi) {
354 				if (req->vfdev_info.capabilities &
355 				    VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
356 					DP_NOTICE(p_hwfn,
357 						  "PF uses very old drivers. Please change to a VF driver using no later than 8.8.x.x.\n");
358 					rc = -EINVAL;
359 					goto exit;
360 				} else {
361 					DP_INFO(p_hwfn,
362 						"PF is old - try re-acquire to see if it supports FW-version override\n");
363 					req->vfdev_info.capabilities |=
364 					    VFPF_ACQUIRE_CAP_PRE_FP_HSI;
365 					continue;
366 				}
367 			}
368 
369 			/* If PF/VF are using same Major, PF must have had
370 			 * it's reasons. Simply fail.
371 			 */
372 			DP_NOTICE(p_hwfn, "PF rejected acquisition by VF\n");
373 			rc = -EINVAL;
374 			goto exit;
375 		} else {
376 			DP_ERR(p_hwfn,
377 			       "PF returned error %d to VF acquisition request\n",
378 			       resp->hdr.status);
379 			rc = -EAGAIN;
380 			goto exit;
381 		}
382 	}
383 
384 	/* Mark the PF as legacy, if needed */
385 	if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_PRE_FP_HSI)
386 		p_iov->b_pre_fp_hsi = true;
387 
388 	/* In case PF doesn't support multi-queue Tx, update the number of
389 	 * CIDs to reflect the number of queues [older PFs didn't fill that
390 	 * field].
391 	 */
392 	if (!(resp->pfdev_info.capabilities & PFVF_ACQUIRE_CAP_QUEUE_QIDS))
393 		resp->resc.num_cids = resp->resc.num_rxqs + resp->resc.num_txqs;
394 
395 	/* Update bulletin board size with response from PF */
396 	p_iov->bulletin.size = resp->bulletin_size;
397 
398 	/* get HW info */
399 	p_hwfn->cdev->type = resp->pfdev_info.dev_type;
400 	p_hwfn->cdev->chip_rev = resp->pfdev_info.chip_rev;
401 
402 	p_hwfn->cdev->chip_num = pfdev_info->chip_num & 0xffff;
403 
404 	/* Learn of the possibility of CMT */
405 	if (IS_LEAD_HWFN(p_hwfn)) {
406 		if (resp->pfdev_info.capabilities & PFVF_ACQUIRE_CAP_100G) {
407 			DP_NOTICE(p_hwfn, "100g VF\n");
408 			p_hwfn->cdev->num_hwfns = 2;
409 		}
410 	}
411 
412 	if (!p_iov->b_pre_fp_hsi &&
413 	    (resp->pfdev_info.minor_fp_hsi < ETH_HSI_VER_MINOR)) {
414 		DP_INFO(p_hwfn,
415 			"PF is using older fastpath HSI; %02x.%02x is configured\n",
416 			ETH_HSI_VER_MAJOR, resp->pfdev_info.minor_fp_hsi);
417 	}
418 
419 exit:
420 	qed_vf_pf_req_end(p_hwfn, rc);
421 
422 	return rc;
423 }
424 
qed_vf_hw_bar_size(struct qed_hwfn * p_hwfn,enum BAR_ID bar_id)425 u32 qed_vf_hw_bar_size(struct qed_hwfn *p_hwfn, enum BAR_ID bar_id)
426 {
427 	u32 bar_size;
428 
429 	/* Regview size is fixed */
430 	if (bar_id == BAR_ID_0)
431 		return 1 << 17;
432 
433 	/* Doorbell is received from PF */
434 	bar_size = p_hwfn->vf_iov_info->acquire_resp.pfdev_info.bar_size;
435 	if (bar_size)
436 		return 1 << bar_size;
437 	return 0;
438 }
439 
qed_vf_hw_prepare(struct qed_hwfn * p_hwfn)440 int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
441 {
442 	struct qed_hwfn *p_lead = QED_LEADING_HWFN(p_hwfn->cdev);
443 	struct qed_vf_iov *p_iov;
444 	u32 reg;
445 	int rc;
446 
447 	/* Set number of hwfns - might be overridden once leading hwfn learns
448 	 * actual configuration from PF.
449 	 */
450 	if (IS_LEAD_HWFN(p_hwfn))
451 		p_hwfn->cdev->num_hwfns = 1;
452 
453 	reg = PXP_VF_BAR0_ME_OPAQUE_ADDRESS;
454 	p_hwfn->hw_info.opaque_fid = (u16)REG_RD(p_hwfn, reg);
455 
456 	reg = PXP_VF_BAR0_ME_CONCRETE_ADDRESS;
457 	p_hwfn->hw_info.concrete_fid = REG_RD(p_hwfn, reg);
458 
459 	/* Allocate vf sriov info */
460 	p_iov = kzalloc(sizeof(*p_iov), GFP_KERNEL);
461 	if (!p_iov)
462 		return -ENOMEM;
463 
464 	/* Doorbells are tricky; Upper-layer has alreday set the hwfn doorbell
465 	 * value, but there are several incompatibily scenarios where that
466 	 * would be incorrect and we'd need to override it.
467 	 */
468 	if (!p_hwfn->doorbells) {
469 		p_hwfn->doorbells = (u8 __iomem *)p_hwfn->regview +
470 						  PXP_VF_BAR0_START_DQ;
471 	} else if (p_hwfn == p_lead) {
472 		/* For leading hw-function, value is always correct, but need
473 		 * to handle scenario where legacy PF would not support 100g
474 		 * mapped bars later.
475 		 */
476 		p_iov->b_doorbell_bar = true;
477 	} else {
478 		/* here, value would be correct ONLY if the leading hwfn
479 		 * received indication that mapped-bars are supported.
480 		 */
481 		if (p_lead->vf_iov_info->b_doorbell_bar)
482 			p_iov->b_doorbell_bar = true;
483 		else
484 			p_hwfn->doorbells = (u8 __iomem *)
485 			    p_hwfn->regview + PXP_VF_BAR0_START_DQ;
486 	}
487 
488 	/* Allocate vf2pf msg */
489 	p_iov->vf2pf_request = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
490 						  sizeof(union vfpf_tlvs),
491 						  &p_iov->vf2pf_request_phys,
492 						  GFP_KERNEL);
493 	if (!p_iov->vf2pf_request)
494 		goto free_p_iov;
495 
496 	p_iov->pf2vf_reply = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
497 						sizeof(union pfvf_tlvs),
498 						&p_iov->pf2vf_reply_phys,
499 						GFP_KERNEL);
500 	if (!p_iov->pf2vf_reply)
501 		goto free_vf2pf_request;
502 
503 	DP_VERBOSE(p_hwfn,
504 		   QED_MSG_IOV,
505 		   "VF's Request mailbox [%p virt 0x%llx phys], Response mailbox [%p virt 0x%llx phys]\n",
506 		   p_iov->vf2pf_request,
507 		   (u64)p_iov->vf2pf_request_phys,
508 		   p_iov->pf2vf_reply, (u64)p_iov->pf2vf_reply_phys);
509 
510 	/* Allocate Bulletin board */
511 	p_iov->bulletin.size = sizeof(struct qed_bulletin_content);
512 	p_iov->bulletin.p_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
513 						    p_iov->bulletin.size,
514 						    &p_iov->bulletin.phys,
515 						    GFP_KERNEL);
516 	if (!p_iov->bulletin.p_virt)
517 		goto free_pf2vf_reply;
518 
519 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
520 		   "VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
521 		   p_iov->bulletin.p_virt,
522 		   (u64)p_iov->bulletin.phys, p_iov->bulletin.size);
523 
524 	mutex_init(&p_iov->mutex);
525 
526 	p_hwfn->vf_iov_info = p_iov;
527 
528 	p_hwfn->hw_info.personality = QED_PCI_ETH;
529 
530 	rc = qed_vf_pf_acquire(p_hwfn);
531 
532 	/* If VF is 100g using a mapped bar and PF is too old to support that,
533 	 * acquisition would succeed - but the VF would have no way knowing
534 	 * the size of the doorbell bar configured in HW and thus will not
535 	 * know how to split it for 2nd hw-function.
536 	 * In this case we re-try without the indication of the mapped
537 	 * doorbell.
538 	 */
539 	if (!rc && p_iov->b_doorbell_bar &&
540 	    !qed_vf_hw_bar_size(p_hwfn, BAR_ID_1) &&
541 	    (p_hwfn->cdev->num_hwfns > 1)) {
542 		rc = _qed_vf_pf_release(p_hwfn, false);
543 		if (rc)
544 			return rc;
545 
546 		p_iov->b_doorbell_bar = false;
547 		p_hwfn->doorbells = (u8 __iomem *)p_hwfn->regview +
548 						  PXP_VF_BAR0_START_DQ;
549 		rc = qed_vf_pf_acquire(p_hwfn);
550 	}
551 
552 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
553 		   "Regview [%p], Doorbell [%p], Device-doorbell [%p]\n",
554 		   p_hwfn->regview, p_hwfn->doorbells, p_hwfn->cdev->doorbells);
555 
556 	return rc;
557 
558 free_pf2vf_reply:
559 	dma_free_coherent(&p_hwfn->cdev->pdev->dev,
560 			  sizeof(union pfvf_tlvs),
561 			  p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
562 free_vf2pf_request:
563 	dma_free_coherent(&p_hwfn->cdev->pdev->dev,
564 			  sizeof(union vfpf_tlvs),
565 			  p_iov->vf2pf_request, p_iov->vf2pf_request_phys);
566 free_p_iov:
567 	kfree(p_iov);
568 
569 	return -ENOMEM;
570 }
571 
572 #define TSTORM_QZONE_START   PXP_VF_BAR0_START_SDM_ZONE_A
573 #define MSTORM_QZONE_START(dev)   (TSTORM_QZONE_START +	\
574 				   (TSTORM_QZONE_SIZE * NUM_OF_L2_QUEUES(dev)))
575 
576 static void
__qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv * p_req,struct qed_tunn_update_type * p_src,enum qed_tunn_mode mask,u8 * p_cls)577 __qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv *p_req,
578 			   struct qed_tunn_update_type *p_src,
579 			   enum qed_tunn_mode mask, u8 *p_cls)
580 {
581 	if (p_src->b_update_mode) {
582 		p_req->tun_mode_update_mask |= BIT(mask);
583 
584 		if (p_src->b_mode_enabled)
585 			p_req->tunn_mode |= BIT(mask);
586 	}
587 
588 	*p_cls = p_src->tun_cls;
589 }
590 
591 static void
qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv * p_req,struct qed_tunn_update_type * p_src,enum qed_tunn_mode mask,u8 * p_cls,struct qed_tunn_update_udp_port * p_port,u8 * p_update_port,u16 * p_udp_port)592 qed_vf_prep_tunn_req_tlv(struct vfpf_update_tunn_param_tlv *p_req,
593 			 struct qed_tunn_update_type *p_src,
594 			 enum qed_tunn_mode mask,
595 			 u8 *p_cls, struct qed_tunn_update_udp_port *p_port,
596 			 u8 *p_update_port, u16 *p_udp_port)
597 {
598 	if (p_port->b_update_port) {
599 		*p_update_port = 1;
600 		*p_udp_port = p_port->port;
601 	}
602 
603 	__qed_vf_prep_tunn_req_tlv(p_req, p_src, mask, p_cls);
604 }
605 
qed_vf_set_vf_start_tunn_update_param(struct qed_tunnel_info * p_tun)606 void qed_vf_set_vf_start_tunn_update_param(struct qed_tunnel_info *p_tun)
607 {
608 	if (p_tun->vxlan.b_mode_enabled)
609 		p_tun->vxlan.b_update_mode = true;
610 	if (p_tun->l2_geneve.b_mode_enabled)
611 		p_tun->l2_geneve.b_update_mode = true;
612 	if (p_tun->ip_geneve.b_mode_enabled)
613 		p_tun->ip_geneve.b_update_mode = true;
614 	if (p_tun->l2_gre.b_mode_enabled)
615 		p_tun->l2_gre.b_update_mode = true;
616 	if (p_tun->ip_gre.b_mode_enabled)
617 		p_tun->ip_gre.b_update_mode = true;
618 
619 	p_tun->b_update_rx_cls = true;
620 	p_tun->b_update_tx_cls = true;
621 }
622 
623 static void
__qed_vf_update_tunn_param(struct qed_tunn_update_type * p_tun,u16 feature_mask,u8 tunn_mode,u8 tunn_cls,enum qed_tunn_mode val)624 __qed_vf_update_tunn_param(struct qed_tunn_update_type *p_tun,
625 			   u16 feature_mask, u8 tunn_mode,
626 			   u8 tunn_cls, enum qed_tunn_mode val)
627 {
628 	if (feature_mask & BIT(val)) {
629 		p_tun->b_mode_enabled = tunn_mode;
630 		p_tun->tun_cls = tunn_cls;
631 	} else {
632 		p_tun->b_mode_enabled = false;
633 	}
634 }
635 
qed_vf_update_tunn_param(struct qed_hwfn * p_hwfn,struct qed_tunnel_info * p_tun,struct pfvf_update_tunn_param_tlv * p_resp)636 static void qed_vf_update_tunn_param(struct qed_hwfn *p_hwfn,
637 				     struct qed_tunnel_info *p_tun,
638 				     struct pfvf_update_tunn_param_tlv *p_resp)
639 {
640 	/* Update mode and classes provided by PF */
641 	u16 feat_mask = p_resp->tunn_feature_mask;
642 
643 	__qed_vf_update_tunn_param(&p_tun->vxlan, feat_mask,
644 				   p_resp->vxlan_mode, p_resp->vxlan_clss,
645 				   QED_MODE_VXLAN_TUNN);
646 	__qed_vf_update_tunn_param(&p_tun->l2_geneve, feat_mask,
647 				   p_resp->l2geneve_mode,
648 				   p_resp->l2geneve_clss,
649 				   QED_MODE_L2GENEVE_TUNN);
650 	__qed_vf_update_tunn_param(&p_tun->ip_geneve, feat_mask,
651 				   p_resp->ipgeneve_mode,
652 				   p_resp->ipgeneve_clss,
653 				   QED_MODE_IPGENEVE_TUNN);
654 	__qed_vf_update_tunn_param(&p_tun->l2_gre, feat_mask,
655 				   p_resp->l2gre_mode, p_resp->l2gre_clss,
656 				   QED_MODE_L2GRE_TUNN);
657 	__qed_vf_update_tunn_param(&p_tun->ip_gre, feat_mask,
658 				   p_resp->ipgre_mode, p_resp->ipgre_clss,
659 				   QED_MODE_IPGRE_TUNN);
660 	p_tun->geneve_port.port = p_resp->geneve_udp_port;
661 	p_tun->vxlan_port.port = p_resp->vxlan_udp_port;
662 
663 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
664 		   "tunn mode: vxlan=0x%x, l2geneve=0x%x, ipgeneve=0x%x, l2gre=0x%x, ipgre=0x%x",
665 		   p_tun->vxlan.b_mode_enabled, p_tun->l2_geneve.b_mode_enabled,
666 		   p_tun->ip_geneve.b_mode_enabled,
667 		   p_tun->l2_gre.b_mode_enabled, p_tun->ip_gre.b_mode_enabled);
668 }
669 
qed_vf_pf_tunnel_param_update(struct qed_hwfn * p_hwfn,struct qed_tunnel_info * p_src)670 int qed_vf_pf_tunnel_param_update(struct qed_hwfn *p_hwfn,
671 				  struct qed_tunnel_info *p_src)
672 {
673 	struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
674 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
675 	struct pfvf_update_tunn_param_tlv *p_resp;
676 	struct vfpf_update_tunn_param_tlv *p_req;
677 	int rc;
678 
679 	p_req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_UPDATE_TUNN_PARAM,
680 			       sizeof(*p_req));
681 
682 	if (p_src->b_update_rx_cls && p_src->b_update_tx_cls)
683 		p_req->update_tun_cls = 1;
684 
685 	qed_vf_prep_tunn_req_tlv(p_req, &p_src->vxlan, QED_MODE_VXLAN_TUNN,
686 				 &p_req->vxlan_clss, &p_src->vxlan_port,
687 				 &p_req->update_vxlan_port,
688 				 &p_req->vxlan_port);
689 	qed_vf_prep_tunn_req_tlv(p_req, &p_src->l2_geneve,
690 				 QED_MODE_L2GENEVE_TUNN,
691 				 &p_req->l2geneve_clss, &p_src->geneve_port,
692 				 &p_req->update_geneve_port,
693 				 &p_req->geneve_port);
694 	__qed_vf_prep_tunn_req_tlv(p_req, &p_src->ip_geneve,
695 				   QED_MODE_IPGENEVE_TUNN,
696 				   &p_req->ipgeneve_clss);
697 	__qed_vf_prep_tunn_req_tlv(p_req, &p_src->l2_gre,
698 				   QED_MODE_L2GRE_TUNN, &p_req->l2gre_clss);
699 	__qed_vf_prep_tunn_req_tlv(p_req, &p_src->ip_gre,
700 				   QED_MODE_IPGRE_TUNN, &p_req->ipgre_clss);
701 
702 	/* add list termination tlv */
703 	qed_add_tlv(p_hwfn, &p_iov->offset,
704 		    CHANNEL_TLV_LIST_END,
705 		    sizeof(struct channel_list_end_tlv));
706 
707 	p_resp = &p_iov->pf2vf_reply->tunn_param_resp;
708 	rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status, sizeof(*p_resp));
709 
710 	if (rc)
711 		goto exit;
712 
713 	if (p_resp->hdr.status != PFVF_STATUS_SUCCESS) {
714 		DP_VERBOSE(p_hwfn, QED_MSG_IOV,
715 			   "Failed to update tunnel parameters\n");
716 		rc = -EINVAL;
717 	}
718 
719 	qed_vf_update_tunn_param(p_hwfn, p_tun, p_resp);
720 exit:
721 	qed_vf_pf_req_end(p_hwfn, rc);
722 	return rc;
723 }
724 
725 int
qed_vf_pf_rxq_start(struct qed_hwfn * p_hwfn,struct qed_queue_cid * p_cid,u16 bd_max_bytes,dma_addr_t bd_chain_phys_addr,dma_addr_t cqe_pbl_addr,u16 cqe_pbl_size,void __iomem ** pp_prod)726 qed_vf_pf_rxq_start(struct qed_hwfn *p_hwfn,
727 		    struct qed_queue_cid *p_cid,
728 		    u16 bd_max_bytes,
729 		    dma_addr_t bd_chain_phys_addr,
730 		    dma_addr_t cqe_pbl_addr,
731 		    u16 cqe_pbl_size, void __iomem **pp_prod)
732 {
733 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
734 	struct pfvf_start_queue_resp_tlv *resp;
735 	struct vfpf_start_rxq_tlv *req;
736 	u8 rx_qid = p_cid->rel.queue_id;
737 	int rc;
738 
739 	/* clear mailbox and prep first tlv */
740 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_START_RXQ, sizeof(*req));
741 
742 	req->rx_qid = rx_qid;
743 	req->cqe_pbl_addr = cqe_pbl_addr;
744 	req->cqe_pbl_size = cqe_pbl_size;
745 	req->rxq_addr = bd_chain_phys_addr;
746 	req->hw_sb = p_cid->sb_igu_id;
747 	req->sb_index = p_cid->sb_idx;
748 	req->bd_max_bytes = bd_max_bytes;
749 	req->stat_id = -1;
750 
751 	/* If PF is legacy, we'll need to calculate producers ourselves
752 	 * as well as clean them.
753 	 */
754 	if (p_iov->b_pre_fp_hsi) {
755 		u8 hw_qid = p_iov->acquire_resp.resc.hw_qid[rx_qid];
756 		u32 init_prod_val = 0;
757 
758 		*pp_prod = (u8 __iomem *)
759 		    p_hwfn->regview +
760 		    MSTORM_QZONE_START(p_hwfn->cdev) +
761 		    hw_qid * MSTORM_QZONE_SIZE;
762 
763 		/* Init the rcq, rx bd and rx sge (if valid) producers to 0 */
764 		__internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
765 				  (u32 *)(&init_prod_val));
766 	}
767 
768 	qed_vf_pf_add_qid(p_hwfn, p_cid);
769 
770 	/* add list termination tlv */
771 	qed_add_tlv(p_hwfn, &p_iov->offset,
772 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
773 
774 	resp = &p_iov->pf2vf_reply->queue_start;
775 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
776 	if (rc)
777 		goto exit;
778 
779 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
780 		rc = -EINVAL;
781 		goto exit;
782 	}
783 
784 	/* Learn the address of the producer from the response */
785 	if (!p_iov->b_pre_fp_hsi) {
786 		u32 init_prod_val = 0;
787 
788 		*pp_prod = (u8 __iomem *)p_hwfn->regview + resp->offset;
789 		DP_VERBOSE(p_hwfn, QED_MSG_IOV,
790 			   "Rxq[0x%02x]: producer at %p [offset 0x%08x]\n",
791 			   rx_qid, *pp_prod, resp->offset);
792 
793 		/* Init the rcq, rx bd and rx sge (if valid) producers to 0 */
794 		__internal_ram_wr(p_hwfn, *pp_prod, sizeof(u32),
795 				  (u32 *)&init_prod_val);
796 	}
797 exit:
798 	qed_vf_pf_req_end(p_hwfn, rc);
799 
800 	return rc;
801 }
802 
qed_vf_pf_rxq_stop(struct qed_hwfn * p_hwfn,struct qed_queue_cid * p_cid,bool cqe_completion)803 int qed_vf_pf_rxq_stop(struct qed_hwfn *p_hwfn,
804 		       struct qed_queue_cid *p_cid, bool cqe_completion)
805 {
806 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
807 	struct vfpf_stop_rxqs_tlv *req;
808 	struct pfvf_def_resp_tlv *resp;
809 	int rc;
810 
811 	/* clear mailbox and prep first tlv */
812 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_STOP_RXQS, sizeof(*req));
813 
814 	req->rx_qid = p_cid->rel.queue_id;
815 	req->num_rxqs = 1;
816 	req->cqe_completion = cqe_completion;
817 
818 	qed_vf_pf_add_qid(p_hwfn, p_cid);
819 
820 	/* add list termination tlv */
821 	qed_add_tlv(p_hwfn, &p_iov->offset,
822 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
823 
824 	resp = &p_iov->pf2vf_reply->default_resp;
825 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
826 	if (rc)
827 		goto exit;
828 
829 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
830 		rc = -EINVAL;
831 		goto exit;
832 	}
833 
834 exit:
835 	qed_vf_pf_req_end(p_hwfn, rc);
836 
837 	return rc;
838 }
839 
840 int
qed_vf_pf_txq_start(struct qed_hwfn * p_hwfn,struct qed_queue_cid * p_cid,dma_addr_t pbl_addr,u16 pbl_size,void __iomem ** pp_doorbell)841 qed_vf_pf_txq_start(struct qed_hwfn *p_hwfn,
842 		    struct qed_queue_cid *p_cid,
843 		    dma_addr_t pbl_addr,
844 		    u16 pbl_size, void __iomem **pp_doorbell)
845 {
846 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
847 	struct pfvf_start_queue_resp_tlv *resp;
848 	struct vfpf_start_txq_tlv *req;
849 	u16 qid = p_cid->rel.queue_id;
850 	int rc;
851 
852 	/* clear mailbox and prep first tlv */
853 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_START_TXQ, sizeof(*req));
854 
855 	req->tx_qid = qid;
856 
857 	/* Tx */
858 	req->pbl_addr = pbl_addr;
859 	req->pbl_size = pbl_size;
860 	req->hw_sb = p_cid->sb_igu_id;
861 	req->sb_index = p_cid->sb_idx;
862 
863 	qed_vf_pf_add_qid(p_hwfn, p_cid);
864 
865 	/* add list termination tlv */
866 	qed_add_tlv(p_hwfn, &p_iov->offset,
867 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
868 
869 	resp = &p_iov->pf2vf_reply->queue_start;
870 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
871 	if (rc)
872 		goto exit;
873 
874 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
875 		rc = -EINVAL;
876 		goto exit;
877 	}
878 
879 	/* Modern PFs provide the actual offsets, while legacy
880 	 * provided only the queue id.
881 	 */
882 	if (!p_iov->b_pre_fp_hsi) {
883 		*pp_doorbell = (u8 __iomem *)p_hwfn->doorbells + resp->offset;
884 	} else {
885 		u8 cid = p_iov->acquire_resp.resc.cid[qid];
886 
887 		*pp_doorbell = (u8 __iomem *)p_hwfn->doorbells +
888 					     qed_db_addr_vf(cid,
889 							    DQ_DEMS_LEGACY);
890 	}
891 
892 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
893 		   "Txq[0x%02x.%02x]: doorbell at %p [offset 0x%08x]\n",
894 		   qid, p_cid->qid_usage_idx, *pp_doorbell, resp->offset);
895 exit:
896 	qed_vf_pf_req_end(p_hwfn, rc);
897 
898 	return rc;
899 }
900 
qed_vf_pf_txq_stop(struct qed_hwfn * p_hwfn,struct qed_queue_cid * p_cid)901 int qed_vf_pf_txq_stop(struct qed_hwfn *p_hwfn, struct qed_queue_cid *p_cid)
902 {
903 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
904 	struct vfpf_stop_txqs_tlv *req;
905 	struct pfvf_def_resp_tlv *resp;
906 	int rc;
907 
908 	/* clear mailbox and prep first tlv */
909 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_STOP_TXQS, sizeof(*req));
910 
911 	req->tx_qid = p_cid->rel.queue_id;
912 	req->num_txqs = 1;
913 
914 	qed_vf_pf_add_qid(p_hwfn, p_cid);
915 
916 	/* add list termination tlv */
917 	qed_add_tlv(p_hwfn, &p_iov->offset,
918 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
919 
920 	resp = &p_iov->pf2vf_reply->default_resp;
921 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
922 	if (rc)
923 		goto exit;
924 
925 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
926 		rc = -EINVAL;
927 		goto exit;
928 	}
929 
930 exit:
931 	qed_vf_pf_req_end(p_hwfn, rc);
932 
933 	return rc;
934 }
935 
qed_vf_pf_vport_start(struct qed_hwfn * p_hwfn,u8 vport_id,u16 mtu,u8 inner_vlan_removal,enum qed_tpa_mode tpa_mode,u8 max_buffers_per_cqe,u8 only_untagged)936 int qed_vf_pf_vport_start(struct qed_hwfn *p_hwfn,
937 			  u8 vport_id,
938 			  u16 mtu,
939 			  u8 inner_vlan_removal,
940 			  enum qed_tpa_mode tpa_mode,
941 			  u8 max_buffers_per_cqe, u8 only_untagged)
942 {
943 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
944 	struct vfpf_vport_start_tlv *req;
945 	struct pfvf_def_resp_tlv *resp;
946 	int rc, i;
947 
948 	/* clear mailbox and prep first tlv */
949 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_START, sizeof(*req));
950 
951 	req->mtu = mtu;
952 	req->vport_id = vport_id;
953 	req->inner_vlan_removal = inner_vlan_removal;
954 	req->tpa_mode = tpa_mode;
955 	req->max_buffers_per_cqe = max_buffers_per_cqe;
956 	req->only_untagged = only_untagged;
957 
958 	/* status blocks */
959 	for (i = 0; i < p_hwfn->vf_iov_info->acquire_resp.resc.num_sbs; i++) {
960 		struct qed_sb_info *p_sb = p_hwfn->vf_iov_info->sbs_info[i];
961 
962 		if (p_sb)
963 			req->sb_addr[i] = p_sb->sb_phys;
964 	}
965 
966 	/* add list termination tlv */
967 	qed_add_tlv(p_hwfn, &p_iov->offset,
968 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
969 
970 	resp = &p_iov->pf2vf_reply->default_resp;
971 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
972 	if (rc)
973 		goto exit;
974 
975 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
976 		rc = -EINVAL;
977 		goto exit;
978 	}
979 
980 exit:
981 	qed_vf_pf_req_end(p_hwfn, rc);
982 
983 	return rc;
984 }
985 
qed_vf_pf_vport_stop(struct qed_hwfn * p_hwfn)986 int qed_vf_pf_vport_stop(struct qed_hwfn *p_hwfn)
987 {
988 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
989 	struct pfvf_def_resp_tlv *resp = &p_iov->pf2vf_reply->default_resp;
990 	int rc;
991 
992 	/* clear mailbox and prep first tlv */
993 	qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_TEARDOWN,
994 		       sizeof(struct vfpf_first_tlv));
995 
996 	/* add list termination tlv */
997 	qed_add_tlv(p_hwfn, &p_iov->offset,
998 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
999 
1000 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1001 	if (rc)
1002 		goto exit;
1003 
1004 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1005 		rc = -EINVAL;
1006 		goto exit;
1007 	}
1008 
1009 exit:
1010 	qed_vf_pf_req_end(p_hwfn, rc);
1011 
1012 	return rc;
1013 }
1014 
1015 static bool
qed_vf_handle_vp_update_is_needed(struct qed_hwfn * p_hwfn,struct qed_sp_vport_update_params * p_data,u16 tlv)1016 qed_vf_handle_vp_update_is_needed(struct qed_hwfn *p_hwfn,
1017 				  struct qed_sp_vport_update_params *p_data,
1018 				  u16 tlv)
1019 {
1020 	switch (tlv) {
1021 	case CHANNEL_TLV_VPORT_UPDATE_ACTIVATE:
1022 		return !!(p_data->update_vport_active_rx_flg ||
1023 			  p_data->update_vport_active_tx_flg);
1024 	case CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH:
1025 		return !!p_data->update_tx_switching_flg;
1026 	case CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP:
1027 		return !!p_data->update_inner_vlan_removal_flg;
1028 	case CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN:
1029 		return !!p_data->update_accept_any_vlan_flg;
1030 	case CHANNEL_TLV_VPORT_UPDATE_MCAST:
1031 		return !!p_data->update_approx_mcast_flg;
1032 	case CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM:
1033 		return !!(p_data->accept_flags.update_rx_mode_config ||
1034 			  p_data->accept_flags.update_tx_mode_config);
1035 	case CHANNEL_TLV_VPORT_UPDATE_RSS:
1036 		return !!p_data->rss_params;
1037 	case CHANNEL_TLV_VPORT_UPDATE_SGE_TPA:
1038 		return !!p_data->sge_tpa_params;
1039 	default:
1040 		DP_INFO(p_hwfn, "Unexpected vport-update TLV[%d]\n",
1041 			tlv);
1042 		return false;
1043 	}
1044 }
1045 
1046 static void
qed_vf_handle_vp_update_tlvs_resp(struct qed_hwfn * p_hwfn,struct qed_sp_vport_update_params * p_data)1047 qed_vf_handle_vp_update_tlvs_resp(struct qed_hwfn *p_hwfn,
1048 				  struct qed_sp_vport_update_params *p_data)
1049 {
1050 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1051 	struct pfvf_def_resp_tlv *p_resp;
1052 	u16 tlv;
1053 
1054 	for (tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
1055 	     tlv < CHANNEL_TLV_VPORT_UPDATE_MAX; tlv++) {
1056 		if (!qed_vf_handle_vp_update_is_needed(p_hwfn, p_data, tlv))
1057 			continue;
1058 
1059 		p_resp = (struct pfvf_def_resp_tlv *)
1060 			 qed_iov_search_list_tlvs(p_hwfn, p_iov->pf2vf_reply,
1061 						  tlv);
1062 		if (p_resp && p_resp->hdr.status)
1063 			DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1064 				   "TLV[%d] Configuration %s\n",
1065 				   tlv,
1066 				   (p_resp && p_resp->hdr.status) ? "succeeded"
1067 								  : "failed");
1068 	}
1069 }
1070 
qed_vf_pf_vport_update(struct qed_hwfn * p_hwfn,struct qed_sp_vport_update_params * p_params)1071 int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
1072 			   struct qed_sp_vport_update_params *p_params)
1073 {
1074 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1075 	struct vfpf_vport_update_tlv *req;
1076 	struct pfvf_def_resp_tlv *resp;
1077 	u8 update_rx, update_tx;
1078 	u32 resp_size = 0;
1079 	u16 size, tlv;
1080 	int rc;
1081 
1082 	resp = &p_iov->pf2vf_reply->default_resp;
1083 	resp_size = sizeof(*resp);
1084 
1085 	update_rx = p_params->update_vport_active_rx_flg;
1086 	update_tx = p_params->update_vport_active_tx_flg;
1087 
1088 	/* clear mailbox and prep header tlv */
1089 	qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_VPORT_UPDATE, sizeof(*req));
1090 
1091 	/* Prepare extended tlvs */
1092 	if (update_rx || update_tx) {
1093 		struct vfpf_vport_update_activate_tlv *p_act_tlv;
1094 
1095 		size = sizeof(struct vfpf_vport_update_activate_tlv);
1096 		p_act_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
1097 					CHANNEL_TLV_VPORT_UPDATE_ACTIVATE,
1098 					size);
1099 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1100 
1101 		if (update_rx) {
1102 			p_act_tlv->update_rx = update_rx;
1103 			p_act_tlv->active_rx = p_params->vport_active_rx_flg;
1104 		}
1105 
1106 		if (update_tx) {
1107 			p_act_tlv->update_tx = update_tx;
1108 			p_act_tlv->active_tx = p_params->vport_active_tx_flg;
1109 		}
1110 	}
1111 
1112 	if (p_params->update_tx_switching_flg) {
1113 		struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
1114 
1115 		size = sizeof(struct vfpf_vport_update_tx_switch_tlv);
1116 		tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
1117 		p_tx_switch_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
1118 					      tlv, size);
1119 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1120 
1121 		p_tx_switch_tlv->tx_switching = p_params->tx_switching_flg;
1122 	}
1123 
1124 	if (p_params->update_approx_mcast_flg) {
1125 		struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
1126 
1127 		size = sizeof(struct vfpf_vport_update_mcast_bin_tlv);
1128 		p_mcast_tlv = qed_add_tlv(p_hwfn, &p_iov->offset,
1129 					  CHANNEL_TLV_VPORT_UPDATE_MCAST, size);
1130 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1131 
1132 		memcpy(p_mcast_tlv->bins, p_params->bins,
1133 		       sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
1134 	}
1135 
1136 	update_rx = p_params->accept_flags.update_rx_mode_config;
1137 	update_tx = p_params->accept_flags.update_tx_mode_config;
1138 
1139 	if (update_rx || update_tx) {
1140 		struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
1141 
1142 		tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
1143 		size = sizeof(struct vfpf_vport_update_accept_param_tlv);
1144 		p_accept_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
1145 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1146 
1147 		if (update_rx) {
1148 			p_accept_tlv->update_rx_mode = update_rx;
1149 			p_accept_tlv->rx_accept_filter =
1150 			    p_params->accept_flags.rx_accept_filter;
1151 		}
1152 
1153 		if (update_tx) {
1154 			p_accept_tlv->update_tx_mode = update_tx;
1155 			p_accept_tlv->tx_accept_filter =
1156 			    p_params->accept_flags.tx_accept_filter;
1157 		}
1158 	}
1159 
1160 	if (p_params->rss_params) {
1161 		struct qed_rss_params *rss_params = p_params->rss_params;
1162 		struct vfpf_vport_update_rss_tlv *p_rss_tlv;
1163 		int i, table_size;
1164 
1165 		size = sizeof(struct vfpf_vport_update_rss_tlv);
1166 		p_rss_tlv = qed_add_tlv(p_hwfn,
1167 					&p_iov->offset,
1168 					CHANNEL_TLV_VPORT_UPDATE_RSS, size);
1169 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1170 
1171 		if (rss_params->update_rss_config)
1172 			p_rss_tlv->update_rss_flags |=
1173 			    VFPF_UPDATE_RSS_CONFIG_FLAG;
1174 		if (rss_params->update_rss_capabilities)
1175 			p_rss_tlv->update_rss_flags |=
1176 			    VFPF_UPDATE_RSS_CAPS_FLAG;
1177 		if (rss_params->update_rss_ind_table)
1178 			p_rss_tlv->update_rss_flags |=
1179 			    VFPF_UPDATE_RSS_IND_TABLE_FLAG;
1180 		if (rss_params->update_rss_key)
1181 			p_rss_tlv->update_rss_flags |= VFPF_UPDATE_RSS_KEY_FLAG;
1182 
1183 		p_rss_tlv->rss_enable = rss_params->rss_enable;
1184 		p_rss_tlv->rss_caps = rss_params->rss_caps;
1185 		p_rss_tlv->rss_table_size_log = rss_params->rss_table_size_log;
1186 
1187 		table_size = min_t(int, T_ETH_INDIRECTION_TABLE_SIZE,
1188 				   1 << p_rss_tlv->rss_table_size_log);
1189 		for (i = 0; i < table_size; i++) {
1190 			struct qed_queue_cid *p_queue;
1191 
1192 			p_queue = rss_params->rss_ind_table[i];
1193 			p_rss_tlv->rss_ind_table[i] = p_queue->rel.queue_id;
1194 		}
1195 		memcpy(p_rss_tlv->rss_key, rss_params->rss_key,
1196 		       sizeof(rss_params->rss_key));
1197 	}
1198 
1199 	if (p_params->update_accept_any_vlan_flg) {
1200 		struct vfpf_vport_update_accept_any_vlan_tlv *p_any_vlan_tlv;
1201 
1202 		size = sizeof(struct vfpf_vport_update_accept_any_vlan_tlv);
1203 		tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
1204 		p_any_vlan_tlv = qed_add_tlv(p_hwfn, &p_iov->offset, tlv, size);
1205 
1206 		resp_size += sizeof(struct pfvf_def_resp_tlv);
1207 		p_any_vlan_tlv->accept_any_vlan = p_params->accept_any_vlan;
1208 		p_any_vlan_tlv->update_accept_any_vlan_flg =
1209 		    p_params->update_accept_any_vlan_flg;
1210 	}
1211 
1212 	/* add list termination tlv */
1213 	qed_add_tlv(p_hwfn, &p_iov->offset,
1214 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1215 
1216 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, resp_size);
1217 	if (rc)
1218 		goto exit;
1219 
1220 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1221 		rc = -EINVAL;
1222 		goto exit;
1223 	}
1224 
1225 	qed_vf_handle_vp_update_tlvs_resp(p_hwfn, p_params);
1226 
1227 exit:
1228 	qed_vf_pf_req_end(p_hwfn, rc);
1229 
1230 	return rc;
1231 }
1232 
qed_vf_pf_reset(struct qed_hwfn * p_hwfn)1233 int qed_vf_pf_reset(struct qed_hwfn *p_hwfn)
1234 {
1235 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1236 	struct pfvf_def_resp_tlv *resp;
1237 	struct vfpf_first_tlv *req;
1238 	int rc;
1239 
1240 	/* clear mailbox and prep first tlv */
1241 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_CLOSE, sizeof(*req));
1242 
1243 	/* add list termination tlv */
1244 	qed_add_tlv(p_hwfn, &p_iov->offset,
1245 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1246 
1247 	resp = &p_iov->pf2vf_reply->default_resp;
1248 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1249 	if (rc)
1250 		goto exit;
1251 
1252 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1253 		rc = -EAGAIN;
1254 		goto exit;
1255 	}
1256 
1257 	p_hwfn->b_int_enabled = 0;
1258 
1259 exit:
1260 	qed_vf_pf_req_end(p_hwfn, rc);
1261 
1262 	return rc;
1263 }
1264 
qed_vf_pf_filter_mcast(struct qed_hwfn * p_hwfn,struct qed_filter_mcast * p_filter_cmd)1265 void qed_vf_pf_filter_mcast(struct qed_hwfn *p_hwfn,
1266 			    struct qed_filter_mcast *p_filter_cmd)
1267 {
1268 	struct qed_sp_vport_update_params sp_params;
1269 	int i;
1270 
1271 	memset(&sp_params, 0, sizeof(sp_params));
1272 	sp_params.update_approx_mcast_flg = 1;
1273 
1274 	if (p_filter_cmd->opcode == QED_FILTER_ADD) {
1275 		for (i = 0; i < p_filter_cmd->num_mc_addrs; i++) {
1276 			u32 bit;
1277 
1278 			bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
1279 			sp_params.bins[bit / 32] |= 1 << (bit % 32);
1280 		}
1281 	}
1282 
1283 	qed_vf_pf_vport_update(p_hwfn, &sp_params);
1284 }
1285 
qed_vf_pf_filter_ucast(struct qed_hwfn * p_hwfn,struct qed_filter_ucast * p_ucast)1286 int qed_vf_pf_filter_ucast(struct qed_hwfn *p_hwfn,
1287 			   struct qed_filter_ucast *p_ucast)
1288 {
1289 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1290 	struct vfpf_ucast_filter_tlv *req;
1291 	struct pfvf_def_resp_tlv *resp;
1292 	int rc;
1293 
1294 	/* clear mailbox and prep first tlv */
1295 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_UCAST_FILTER, sizeof(*req));
1296 	req->opcode = (u8)p_ucast->opcode;
1297 	req->type = (u8)p_ucast->type;
1298 	memcpy(req->mac, p_ucast->mac, ETH_ALEN);
1299 	req->vlan = p_ucast->vlan;
1300 
1301 	/* add list termination tlv */
1302 	qed_add_tlv(p_hwfn, &p_iov->offset,
1303 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1304 
1305 	resp = &p_iov->pf2vf_reply->default_resp;
1306 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1307 	if (rc)
1308 		goto exit;
1309 
1310 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1311 		rc = -EAGAIN;
1312 		goto exit;
1313 	}
1314 
1315 exit:
1316 	qed_vf_pf_req_end(p_hwfn, rc);
1317 
1318 	return rc;
1319 }
1320 
qed_vf_pf_int_cleanup(struct qed_hwfn * p_hwfn)1321 int qed_vf_pf_int_cleanup(struct qed_hwfn *p_hwfn)
1322 {
1323 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1324 	struct pfvf_def_resp_tlv *resp = &p_iov->pf2vf_reply->default_resp;
1325 	int rc;
1326 
1327 	/* clear mailbox and prep first tlv */
1328 	qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_INT_CLEANUP,
1329 		       sizeof(struct vfpf_first_tlv));
1330 
1331 	/* add list termination tlv */
1332 	qed_add_tlv(p_hwfn, &p_iov->offset,
1333 		    CHANNEL_TLV_LIST_END, sizeof(struct channel_list_end_tlv));
1334 
1335 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1336 	if (rc)
1337 		goto exit;
1338 
1339 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1340 		rc = -EINVAL;
1341 		goto exit;
1342 	}
1343 
1344 exit:
1345 	qed_vf_pf_req_end(p_hwfn, rc);
1346 
1347 	return rc;
1348 }
1349 
qed_vf_pf_get_coalesce(struct qed_hwfn * p_hwfn,u16 * p_coal,struct qed_queue_cid * p_cid)1350 int qed_vf_pf_get_coalesce(struct qed_hwfn *p_hwfn,
1351 			   u16 *p_coal, struct qed_queue_cid *p_cid)
1352 {
1353 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1354 	struct pfvf_read_coal_resp_tlv *resp;
1355 	struct vfpf_read_coal_req_tlv *req;
1356 	int rc;
1357 
1358 	/* clear mailbox and prep header tlv */
1359 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_COALESCE_READ, sizeof(*req));
1360 	req->qid = p_cid->rel.queue_id;
1361 	req->is_rx = p_cid->b_is_rx ? 1 : 0;
1362 
1363 	qed_add_tlv(p_hwfn, &p_iov->offset, CHANNEL_TLV_LIST_END,
1364 		    sizeof(struct channel_list_end_tlv));
1365 	resp = &p_iov->pf2vf_reply->read_coal_resp;
1366 
1367 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1368 	if (rc)
1369 		goto exit;
1370 
1371 	if (resp->hdr.status != PFVF_STATUS_SUCCESS)
1372 		goto exit;
1373 
1374 	*p_coal = resp->coal;
1375 exit:
1376 	qed_vf_pf_req_end(p_hwfn, rc);
1377 
1378 	return rc;
1379 }
1380 
1381 int
qed_vf_pf_bulletin_update_mac(struct qed_hwfn * p_hwfn,const u8 * p_mac)1382 qed_vf_pf_bulletin_update_mac(struct qed_hwfn *p_hwfn,
1383 			      const u8 *p_mac)
1384 {
1385 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1386 	struct vfpf_bulletin_update_mac_tlv *p_req;
1387 	struct pfvf_def_resp_tlv *p_resp;
1388 	int rc;
1389 
1390 	if (!p_mac)
1391 		return -EINVAL;
1392 
1393 	/* clear mailbox and prep header tlv */
1394 	p_req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_BULLETIN_UPDATE_MAC,
1395 			       sizeof(*p_req));
1396 	ether_addr_copy(p_req->mac, p_mac);
1397 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1398 		   "Requesting bulletin update for MAC[%pM]\n", p_mac);
1399 
1400 	/* add list termination tlv */
1401 	qed_add_tlv(p_hwfn, &p_iov->offset, CHANNEL_TLV_LIST_END,
1402 		    sizeof(struct channel_list_end_tlv));
1403 
1404 	p_resp = &p_iov->pf2vf_reply->default_resp;
1405 	rc = qed_send_msg2pf(p_hwfn, &p_resp->hdr.status, sizeof(*p_resp));
1406 	qed_vf_pf_req_end(p_hwfn, rc);
1407 	return rc;
1408 }
1409 
1410 int
qed_vf_pf_set_coalesce(struct qed_hwfn * p_hwfn,u16 rx_coal,u16 tx_coal,struct qed_queue_cid * p_cid)1411 qed_vf_pf_set_coalesce(struct qed_hwfn *p_hwfn,
1412 		       u16 rx_coal, u16 tx_coal, struct qed_queue_cid *p_cid)
1413 {
1414 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1415 	struct vfpf_update_coalesce *req;
1416 	struct pfvf_def_resp_tlv *resp;
1417 	int rc;
1418 
1419 	/* clear mailbox and prep header tlv */
1420 	req = qed_vf_pf_prep(p_hwfn, CHANNEL_TLV_COALESCE_UPDATE, sizeof(*req));
1421 
1422 	req->rx_coal = rx_coal;
1423 	req->tx_coal = tx_coal;
1424 	req->qid = p_cid->rel.queue_id;
1425 
1426 	DP_VERBOSE(p_hwfn,
1427 		   QED_MSG_IOV,
1428 		   "Setting coalesce rx_coal = %d, tx_coal = %d at queue = %d\n",
1429 		   rx_coal, tx_coal, req->qid);
1430 
1431 	/* add list termination tlv */
1432 	qed_add_tlv(p_hwfn, &p_iov->offset, CHANNEL_TLV_LIST_END,
1433 		    sizeof(struct channel_list_end_tlv));
1434 
1435 	resp = &p_iov->pf2vf_reply->default_resp;
1436 	rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
1437 	if (rc)
1438 		goto exit;
1439 
1440 	if (resp->hdr.status != PFVF_STATUS_SUCCESS)
1441 		goto exit;
1442 
1443 	if (rx_coal)
1444 		p_hwfn->cdev->rx_coalesce_usecs = rx_coal;
1445 
1446 	if (tx_coal)
1447 		p_hwfn->cdev->tx_coalesce_usecs = tx_coal;
1448 
1449 exit:
1450 	qed_vf_pf_req_end(p_hwfn, rc);
1451 	return rc;
1452 }
1453 
qed_vf_get_igu_sb_id(struct qed_hwfn * p_hwfn,u16 sb_id)1454 u16 qed_vf_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id)
1455 {
1456 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1457 
1458 	if (!p_iov) {
1459 		DP_NOTICE(p_hwfn, "vf_sriov_info isn't initialized\n");
1460 		return 0;
1461 	}
1462 
1463 	return p_iov->acquire_resp.resc.hw_sbs[sb_id].hw_sb_id;
1464 }
1465 
qed_vf_set_sb_info(struct qed_hwfn * p_hwfn,u16 sb_id,struct qed_sb_info * p_sb)1466 void qed_vf_set_sb_info(struct qed_hwfn *p_hwfn,
1467 			u16 sb_id, struct qed_sb_info *p_sb)
1468 {
1469 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1470 
1471 	if (!p_iov) {
1472 		DP_NOTICE(p_hwfn, "vf_sriov_info isn't initialized\n");
1473 		return;
1474 	}
1475 
1476 	if (sb_id >= PFVF_MAX_SBS_PER_VF) {
1477 		DP_NOTICE(p_hwfn, "Can't configure SB %04x\n", sb_id);
1478 		return;
1479 	}
1480 
1481 	p_iov->sbs_info[sb_id] = p_sb;
1482 }
1483 
qed_vf_read_bulletin(struct qed_hwfn * p_hwfn,u8 * p_change)1484 int qed_vf_read_bulletin(struct qed_hwfn *p_hwfn, u8 *p_change)
1485 {
1486 	struct qed_vf_iov *p_iov = p_hwfn->vf_iov_info;
1487 	struct qed_bulletin_content shadow;
1488 	u32 crc, crc_size;
1489 
1490 	crc_size = sizeof(p_iov->bulletin.p_virt->crc);
1491 	*p_change = 0;
1492 
1493 	/* Need to guarantee PF is not in the middle of writing it */
1494 	memcpy(&shadow, p_iov->bulletin.p_virt, p_iov->bulletin.size);
1495 
1496 	/* If version did not update, no need to do anything */
1497 	if (shadow.version == p_iov->bulletin_shadow.version)
1498 		return 0;
1499 
1500 	/* Verify the bulletin we see is valid */
1501 	crc = crc32(0, (u8 *)&shadow + crc_size,
1502 		    p_iov->bulletin.size - crc_size);
1503 	if (crc != shadow.crc)
1504 		return -EAGAIN;
1505 
1506 	/* Set the shadow bulletin and process it */
1507 	memcpy(&p_iov->bulletin_shadow, &shadow, p_iov->bulletin.size);
1508 
1509 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1510 		   "Read a bulletin update %08x\n", shadow.version);
1511 
1512 	*p_change = 1;
1513 
1514 	return 0;
1515 }
1516 
__qed_vf_get_link_params(struct qed_hwfn * p_hwfn,struct qed_mcp_link_params * p_params,struct qed_bulletin_content * p_bulletin)1517 void __qed_vf_get_link_params(struct qed_hwfn *p_hwfn,
1518 			      struct qed_mcp_link_params *p_params,
1519 			      struct qed_bulletin_content *p_bulletin)
1520 {
1521 	memset(p_params, 0, sizeof(*p_params));
1522 
1523 	p_params->speed.autoneg = p_bulletin->req_autoneg;
1524 	p_params->speed.advertised_speeds = p_bulletin->req_adv_speed;
1525 	p_params->speed.forced_speed = p_bulletin->req_forced_speed;
1526 	p_params->pause.autoneg = p_bulletin->req_autoneg_pause;
1527 	p_params->pause.forced_rx = p_bulletin->req_forced_rx;
1528 	p_params->pause.forced_tx = p_bulletin->req_forced_tx;
1529 	p_params->loopback_mode = p_bulletin->req_loopback;
1530 }
1531 
qed_vf_get_link_params(struct qed_hwfn * p_hwfn,struct qed_mcp_link_params * params)1532 void qed_vf_get_link_params(struct qed_hwfn *p_hwfn,
1533 			    struct qed_mcp_link_params *params)
1534 {
1535 	__qed_vf_get_link_params(p_hwfn, params,
1536 				 &(p_hwfn->vf_iov_info->bulletin_shadow));
1537 }
1538 
__qed_vf_get_link_state(struct qed_hwfn * p_hwfn,struct qed_mcp_link_state * p_link,struct qed_bulletin_content * p_bulletin)1539 void __qed_vf_get_link_state(struct qed_hwfn *p_hwfn,
1540 			     struct qed_mcp_link_state *p_link,
1541 			     struct qed_bulletin_content *p_bulletin)
1542 {
1543 	memset(p_link, 0, sizeof(*p_link));
1544 
1545 	p_link->link_up = p_bulletin->link_up;
1546 	p_link->speed = p_bulletin->speed;
1547 	p_link->full_duplex = p_bulletin->full_duplex;
1548 	p_link->an = p_bulletin->autoneg;
1549 	p_link->an_complete = p_bulletin->autoneg_complete;
1550 	p_link->parallel_detection = p_bulletin->parallel_detection;
1551 	p_link->pfc_enabled = p_bulletin->pfc_enabled;
1552 	p_link->partner_adv_speed = p_bulletin->partner_adv_speed;
1553 	p_link->partner_tx_flow_ctrl_en = p_bulletin->partner_tx_flow_ctrl_en;
1554 	p_link->partner_rx_flow_ctrl_en = p_bulletin->partner_rx_flow_ctrl_en;
1555 	p_link->partner_adv_pause = p_bulletin->partner_adv_pause;
1556 	p_link->sfp_tx_fault = p_bulletin->sfp_tx_fault;
1557 }
1558 
qed_vf_get_link_state(struct qed_hwfn * p_hwfn,struct qed_mcp_link_state * link)1559 void qed_vf_get_link_state(struct qed_hwfn *p_hwfn,
1560 			   struct qed_mcp_link_state *link)
1561 {
1562 	__qed_vf_get_link_state(p_hwfn, link,
1563 				&(p_hwfn->vf_iov_info->bulletin_shadow));
1564 }
1565 
__qed_vf_get_link_caps(struct qed_hwfn * p_hwfn,struct qed_mcp_link_capabilities * p_link_caps,struct qed_bulletin_content * p_bulletin)1566 void __qed_vf_get_link_caps(struct qed_hwfn *p_hwfn,
1567 			    struct qed_mcp_link_capabilities *p_link_caps,
1568 			    struct qed_bulletin_content *p_bulletin)
1569 {
1570 	memset(p_link_caps, 0, sizeof(*p_link_caps));
1571 	p_link_caps->speed_capabilities = p_bulletin->capability_speed;
1572 }
1573 
qed_vf_get_link_caps(struct qed_hwfn * p_hwfn,struct qed_mcp_link_capabilities * p_link_caps)1574 void qed_vf_get_link_caps(struct qed_hwfn *p_hwfn,
1575 			  struct qed_mcp_link_capabilities *p_link_caps)
1576 {
1577 	__qed_vf_get_link_caps(p_hwfn, p_link_caps,
1578 			       &(p_hwfn->vf_iov_info->bulletin_shadow));
1579 }
1580 
qed_vf_get_num_rxqs(struct qed_hwfn * p_hwfn,u8 * num_rxqs)1581 void qed_vf_get_num_rxqs(struct qed_hwfn *p_hwfn, u8 *num_rxqs)
1582 {
1583 	*num_rxqs = p_hwfn->vf_iov_info->acquire_resp.resc.num_rxqs;
1584 }
1585 
qed_vf_get_num_txqs(struct qed_hwfn * p_hwfn,u8 * num_txqs)1586 void qed_vf_get_num_txqs(struct qed_hwfn *p_hwfn, u8 *num_txqs)
1587 {
1588 	*num_txqs = p_hwfn->vf_iov_info->acquire_resp.resc.num_txqs;
1589 }
1590 
qed_vf_get_num_cids(struct qed_hwfn * p_hwfn,u8 * num_cids)1591 void qed_vf_get_num_cids(struct qed_hwfn *p_hwfn, u8 *num_cids)
1592 {
1593 	*num_cids = p_hwfn->vf_iov_info->acquire_resp.resc.num_cids;
1594 }
1595 
qed_vf_get_port_mac(struct qed_hwfn * p_hwfn,u8 * port_mac)1596 void qed_vf_get_port_mac(struct qed_hwfn *p_hwfn, u8 *port_mac)
1597 {
1598 	memcpy(port_mac,
1599 	       p_hwfn->vf_iov_info->acquire_resp.pfdev_info.port_mac, ETH_ALEN);
1600 }
1601 
qed_vf_get_num_vlan_filters(struct qed_hwfn * p_hwfn,u8 * num_vlan_filters)1602 void qed_vf_get_num_vlan_filters(struct qed_hwfn *p_hwfn, u8 *num_vlan_filters)
1603 {
1604 	struct qed_vf_iov *p_vf;
1605 
1606 	p_vf = p_hwfn->vf_iov_info;
1607 	*num_vlan_filters = p_vf->acquire_resp.resc.num_vlan_filters;
1608 }
1609 
qed_vf_get_num_mac_filters(struct qed_hwfn * p_hwfn,u8 * num_mac_filters)1610 void qed_vf_get_num_mac_filters(struct qed_hwfn *p_hwfn, u8 *num_mac_filters)
1611 {
1612 	struct qed_vf_iov *p_vf = p_hwfn->vf_iov_info;
1613 
1614 	*num_mac_filters = p_vf->acquire_resp.resc.num_mac_filters;
1615 }
1616 
qed_vf_check_mac(struct qed_hwfn * p_hwfn,u8 * mac)1617 bool qed_vf_check_mac(struct qed_hwfn *p_hwfn, u8 *mac)
1618 {
1619 	struct qed_bulletin_content *bulletin;
1620 
1621 	bulletin = &p_hwfn->vf_iov_info->bulletin_shadow;
1622 	if (!(bulletin->valid_bitmap & (1 << MAC_ADDR_FORCED)))
1623 		return true;
1624 
1625 	/* Forbid VF from changing a MAC enforced by PF */
1626 	if (ether_addr_equal(bulletin->mac, mac))
1627 		return false;
1628 
1629 	return false;
1630 }
1631 
qed_vf_bulletin_get_forced_mac(struct qed_hwfn * hwfn,u8 * dst_mac,u8 * p_is_forced)1632 static bool qed_vf_bulletin_get_forced_mac(struct qed_hwfn *hwfn,
1633 					   u8 *dst_mac, u8 *p_is_forced)
1634 {
1635 	struct qed_bulletin_content *bulletin;
1636 
1637 	bulletin = &hwfn->vf_iov_info->bulletin_shadow;
1638 
1639 	if (bulletin->valid_bitmap & (1 << MAC_ADDR_FORCED)) {
1640 		if (p_is_forced)
1641 			*p_is_forced = 1;
1642 	} else if (bulletin->valid_bitmap & (1 << VFPF_BULLETIN_MAC_ADDR)) {
1643 		if (p_is_forced)
1644 			*p_is_forced = 0;
1645 	} else {
1646 		return false;
1647 	}
1648 
1649 	ether_addr_copy(dst_mac, bulletin->mac);
1650 
1651 	return true;
1652 }
1653 
1654 static void
qed_vf_bulletin_get_udp_ports(struct qed_hwfn * p_hwfn,u16 * p_vxlan_port,u16 * p_geneve_port)1655 qed_vf_bulletin_get_udp_ports(struct qed_hwfn *p_hwfn,
1656 			      u16 *p_vxlan_port, u16 *p_geneve_port)
1657 {
1658 	struct qed_bulletin_content *p_bulletin;
1659 
1660 	p_bulletin = &p_hwfn->vf_iov_info->bulletin_shadow;
1661 
1662 	*p_vxlan_port = p_bulletin->vxlan_udp_port;
1663 	*p_geneve_port = p_bulletin->geneve_udp_port;
1664 }
1665 
qed_vf_get_fw_version(struct qed_hwfn * p_hwfn,u16 * fw_major,u16 * fw_minor,u16 * fw_rev,u16 * fw_eng)1666 void qed_vf_get_fw_version(struct qed_hwfn *p_hwfn,
1667 			   u16 *fw_major, u16 *fw_minor,
1668 			   u16 *fw_rev, u16 *fw_eng)
1669 {
1670 	struct pf_vf_pfdev_info *info;
1671 
1672 	info = &p_hwfn->vf_iov_info->acquire_resp.pfdev_info;
1673 
1674 	*fw_major = info->fw_major;
1675 	*fw_minor = info->fw_minor;
1676 	*fw_rev = info->fw_rev;
1677 	*fw_eng = info->fw_eng;
1678 }
1679 
qed_handle_bulletin_change(struct qed_hwfn * hwfn)1680 static void qed_handle_bulletin_change(struct qed_hwfn *hwfn)
1681 {
1682 	struct qed_eth_cb_ops *ops = hwfn->cdev->protocol_ops.eth;
1683 	u8 mac[ETH_ALEN], is_mac_exist, is_mac_forced;
1684 	void *cookie = hwfn->cdev->ops_cookie;
1685 	u16 vxlan_port, geneve_port;
1686 
1687 	qed_vf_bulletin_get_udp_ports(hwfn, &vxlan_port, &geneve_port);
1688 	is_mac_exist = qed_vf_bulletin_get_forced_mac(hwfn, mac,
1689 						      &is_mac_forced);
1690 	if (is_mac_exist && cookie)
1691 		ops->force_mac(cookie, mac, !!is_mac_forced);
1692 
1693 	ops->ports_update(cookie, vxlan_port, geneve_port);
1694 
1695 	/* Always update link configuration according to bulletin */
1696 	qed_link_update(hwfn, NULL);
1697 }
1698 
qed_iov_vf_task(struct work_struct * work)1699 void qed_iov_vf_task(struct work_struct *work)
1700 {
1701 	struct qed_hwfn *hwfn = container_of(work, struct qed_hwfn,
1702 					     iov_task.work);
1703 	u8 change = 0;
1704 
1705 	if (test_and_clear_bit(QED_IOV_WQ_STOP_WQ_FLAG, &hwfn->iov_task_flags))
1706 		return;
1707 
1708 	/* Handle bulletin board changes */
1709 	qed_vf_read_bulletin(hwfn, &change);
1710 	if (test_and_clear_bit(QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,
1711 			       &hwfn->iov_task_flags))
1712 		change = 1;
1713 	if (change)
1714 		qed_handle_bulletin_change(hwfn);
1715 
1716 	/* As VF is polling bulletin board, need to constantly re-schedule */
1717 	queue_delayed_work(hwfn->iov_wq, &hwfn->iov_task, HZ);
1718 }
1719