1 /* bnx2x_vfpf.c: QLogic Everest network driver.
2  *
3  * Copyright 2009-2013 Broadcom Corporation
4  * Copyright 2014 QLogic Corporation
5  * All rights reserved
6  *
7  * Unless you and QLogic execute a separate written software license
8  * agreement governing use of this software, this software is licensed to you
9  * under the terms of the GNU General Public License version 2, available
10  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
11  *
12  * Notwithstanding the above, under no circumstances may you combine this
13  * software in any way with any other QLogic software provided under a
14  * license other than the GPL, without QLogic's express prior written
15  * consent.
16  *
17  * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
18  * Written by: Shmulik Ravid
19  *	       Ariel Elior <ariel.elior@qlogic.com>
20  */
21 
22 #include "bnx2x.h"
23 #include "bnx2x_cmn.h"
24 #include <linux/crc32.h>
25 
26 static int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx);
27 
28 /* place a given tlv on the tlv buffer at a given offset */
29 static void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list,
30 			  u16 offset, u16 type, u16 length)
31 {
32 	struct channel_tlv *tl =
33 		(struct channel_tlv *)(tlvs_list + offset);
34 
35 	tl->type = type;
36 	tl->length = length;
37 }
38 
39 /* Clear the mailbox and init the header of the first tlv */
40 static void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv,
41 			    u16 type, u16 length)
42 {
43 	mutex_lock(&bp->vf2pf_mutex);
44 
45 	DP(BNX2X_MSG_IOV, "preparing to send %d tlv over vf pf channel\n",
46 	   type);
47 
48 	/* Clear mailbox */
49 	memset(bp->vf2pf_mbox, 0, sizeof(struct bnx2x_vf_mbx_msg));
50 
51 	/* init type and length */
52 	bnx2x_add_tlv(bp, &first_tlv->tl, 0, type, length);
53 
54 	/* init first tlv header */
55 	first_tlv->resp_msg_offset = sizeof(bp->vf2pf_mbox->req);
56 }
57 
58 /* releases the mailbox */
59 static void bnx2x_vfpf_finalize(struct bnx2x *bp,
60 				struct vfpf_first_tlv *first_tlv)
61 {
62 	DP(BNX2X_MSG_IOV, "done sending [%d] tlv over vf pf channel\n",
63 	   first_tlv->tl.type);
64 
65 	mutex_unlock(&bp->vf2pf_mutex);
66 }
67 
68 /* Finds a TLV by type in a TLV buffer; If found, returns pointer to the TLV */
69 static void *bnx2x_search_tlv_list(struct bnx2x *bp, void *tlvs_list,
70 				   enum channel_tlvs req_tlv)
71 {
72 	struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list;
73 
74 	do {
75 		if (tlv->type == req_tlv)
76 			return tlv;
77 
78 		if (!tlv->length) {
79 			BNX2X_ERR("Found TLV with length 0\n");
80 			return NULL;
81 		}
82 
83 		tlvs_list += tlv->length;
84 		tlv = (struct channel_tlv *)tlvs_list;
85 	} while (tlv->type != CHANNEL_TLV_LIST_END);
86 
87 	DP(BNX2X_MSG_IOV, "TLV list does not contain %d TLV\n", req_tlv);
88 
89 	return NULL;
90 }
91 
92 /* list the types and lengths of the tlvs on the buffer */
93 static void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list)
94 {
95 	int i = 1;
96 	struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list;
97 
98 	while (tlv->type != CHANNEL_TLV_LIST_END) {
99 		/* output tlv */
100 		DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i,
101 		   tlv->type, tlv->length);
102 
103 		/* advance to next tlv */
104 		tlvs_list += tlv->length;
105 
106 		/* cast general tlv list pointer to channel tlv header*/
107 		tlv = (struct channel_tlv *)tlvs_list;
108 
109 		i++;
110 
111 		/* break condition for this loop */
112 		if (i > MAX_TLVS_IN_LIST) {
113 			WARN(true, "corrupt tlvs");
114 			return;
115 		}
116 	}
117 
118 	/* output last tlv */
119 	DP(BNX2X_MSG_IOV, "TLV number %d: type %d, length %d\n", i,
120 	   tlv->type, tlv->length);
121 }
122 
123 /* test whether we support a tlv type */
124 bool bnx2x_tlv_supported(u16 tlvtype)
125 {
126 	return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
127 }
128 
129 static inline int bnx2x_pfvf_status_codes(int rc)
130 {
131 	switch (rc) {
132 	case 0:
133 		return PFVF_STATUS_SUCCESS;
134 	case -ENOMEM:
135 		return PFVF_STATUS_NO_RESOURCE;
136 	default:
137 		return PFVF_STATUS_FAILURE;
138 	}
139 }
140 
141 static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
142 {
143 	struct cstorm_vf_zone_data __iomem *zone_data =
144 		REG_ADDR(bp, PXP_VF_ADDR_CSDM_GLOBAL_START);
145 	int tout = 100, interval = 100; /* wait for 10 seconds */
146 
147 	if (*done) {
148 		BNX2X_ERR("done was non zero before message to pf was sent\n");
149 		WARN_ON(true);
150 		return -EINVAL;
151 	}
152 
153 	/* if PF indicated channel is down avoid sending message. Return success
154 	 * so calling flow can continue
155 	 */
156 	bnx2x_sample_bulletin(bp);
157 	if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
158 		DP(BNX2X_MSG_IOV, "detecting channel down. Aborting message\n");
159 		*done = PFVF_STATUS_SUCCESS;
160 		return -EINVAL;
161 	}
162 
163 	/* Write message address */
164 	writel(U64_LO(msg_mapping),
165 	       &zone_data->non_trigger.vf_pf_channel.msg_addr_lo);
166 	writel(U64_HI(msg_mapping),
167 	       &zone_data->non_trigger.vf_pf_channel.msg_addr_hi);
168 
169 	/* make sure the address is written before FW accesses it */
170 	wmb();
171 
172 	/* Trigger the PF FW */
173 	writeb(1, &zone_data->trigger.vf_pf_channel.addr_valid);
174 
175 	/* Wait for PF to complete */
176 	while ((tout >= 0) && (!*done)) {
177 		msleep(interval);
178 		tout -= 1;
179 
180 		/* progress indicator - HV can take its own sweet time in
181 		 * answering VFs...
182 		 */
183 		DP_CONT(BNX2X_MSG_IOV, ".");
184 	}
185 
186 	if (!*done) {
187 		BNX2X_ERR("PF response has timed out\n");
188 		return -EAGAIN;
189 	}
190 	DP(BNX2X_MSG_SP, "Got a response from PF\n");
191 	return 0;
192 }
193 
194 static int bnx2x_get_vf_id(struct bnx2x *bp, u32 *vf_id)
195 {
196 	u32 me_reg;
197 	int tout = 10, interval = 100; /* Wait for 1 sec */
198 
199 	do {
200 		/* pxp traps vf read of doorbells and returns me reg value */
201 		me_reg = readl(bp->doorbells);
202 		if (GOOD_ME_REG(me_reg))
203 			break;
204 
205 		msleep(interval);
206 
207 		BNX2X_ERR("Invalid ME register value: 0x%08x\n. Is pf driver up?",
208 			  me_reg);
209 	} while (tout-- > 0);
210 
211 	if (!GOOD_ME_REG(me_reg)) {
212 		BNX2X_ERR("Invalid ME register value: 0x%08x\n", me_reg);
213 		return -EINVAL;
214 	}
215 
216 	DP(BNX2X_MSG_IOV, "valid ME register value: 0x%08x\n", me_reg);
217 
218 	*vf_id = (me_reg & ME_REG_VF_NUM_MASK) >> ME_REG_VF_NUM_SHIFT;
219 
220 	return 0;
221 }
222 
223 int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
224 {
225 	int rc = 0, attempts = 0;
226 	struct vfpf_acquire_tlv *req = &bp->vf2pf_mbox->req.acquire;
227 	struct pfvf_acquire_resp_tlv *resp = &bp->vf2pf_mbox->resp.acquire_resp;
228 	struct vfpf_port_phys_id_resp_tlv *phys_port_resp;
229 	struct vfpf_fp_hsi_resp_tlv *fp_hsi_resp;
230 	u32 vf_id;
231 	bool resources_acquired = false;
232 
233 	/* clear mailbox and prep first tlv */
234 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_ACQUIRE, sizeof(*req));
235 
236 	if (bnx2x_get_vf_id(bp, &vf_id)) {
237 		rc = -EAGAIN;
238 		goto out;
239 	}
240 
241 	req->vfdev_info.vf_id = vf_id;
242 	req->vfdev_info.vf_os = 0;
243 	req->vfdev_info.fp_hsi_ver = ETH_FP_HSI_VERSION;
244 
245 	req->resc_request.num_rxqs = rx_count;
246 	req->resc_request.num_txqs = tx_count;
247 	req->resc_request.num_sbs = bp->igu_sb_cnt;
248 	req->resc_request.num_mac_filters = VF_ACQUIRE_MAC_FILTERS;
249 	req->resc_request.num_mc_filters = VF_ACQUIRE_MC_FILTERS;
250 	req->resc_request.num_vlan_filters = VF_ACQUIRE_VLAN_FILTERS;
251 
252 	/* pf 2 vf bulletin board address */
253 	req->bulletin_addr = bp->pf2vf_bulletin_mapping;
254 
255 	/* Request physical port identifier */
256 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length,
257 		      CHANNEL_TLV_PHYS_PORT_ID, sizeof(struct channel_tlv));
258 
259 	/* Bulletin support for bulletin board with length > legacy length */
260 	req->vfdev_info.caps |= VF_CAP_SUPPORT_EXT_BULLETIN;
261 	/* vlan filtering is supported */
262 	req->vfdev_info.caps |= VF_CAP_SUPPORT_VLAN_FILTER;
263 
264 	/* add list termination tlv */
265 	bnx2x_add_tlv(bp, req,
266 		      req->first_tlv.tl.length + sizeof(struct channel_tlv),
267 		      CHANNEL_TLV_LIST_END,
268 		      sizeof(struct channel_list_end_tlv));
269 
270 	/* output tlvs list */
271 	bnx2x_dp_tlv_list(bp, req);
272 
273 	while (!resources_acquired) {
274 		DP(BNX2X_MSG_SP, "attempting to acquire resources\n");
275 
276 		/* send acquire request */
277 		rc = bnx2x_send_msg2pf(bp,
278 				       &resp->hdr.status,
279 				       bp->vf2pf_mbox_mapping);
280 
281 		/* PF timeout */
282 		if (rc)
283 			goto out;
284 
285 		/* copy acquire response from buffer to bp */
286 		memcpy(&bp->acquire_resp, resp, sizeof(bp->acquire_resp));
287 
288 		attempts++;
289 
290 		/* test whether the PF accepted our request. If not, humble
291 		 * the request and try again.
292 		 */
293 		if (bp->acquire_resp.hdr.status == PFVF_STATUS_SUCCESS) {
294 			DP(BNX2X_MSG_SP, "resources acquired\n");
295 			resources_acquired = true;
296 		} else if (bp->acquire_resp.hdr.status ==
297 			   PFVF_STATUS_NO_RESOURCE &&
298 			   attempts < VF_ACQUIRE_THRESH) {
299 			DP(BNX2X_MSG_SP,
300 			   "PF unwilling to fulfill resource request. Try PF recommended amount\n");
301 
302 			/* humble our request */
303 			req->resc_request.num_txqs =
304 				min(req->resc_request.num_txqs,
305 				    bp->acquire_resp.resc.num_txqs);
306 			req->resc_request.num_rxqs =
307 				min(req->resc_request.num_rxqs,
308 				    bp->acquire_resp.resc.num_rxqs);
309 			req->resc_request.num_sbs =
310 				min(req->resc_request.num_sbs,
311 				    bp->acquire_resp.resc.num_sbs);
312 			req->resc_request.num_mac_filters =
313 				min(req->resc_request.num_mac_filters,
314 				    bp->acquire_resp.resc.num_mac_filters);
315 			req->resc_request.num_vlan_filters =
316 				min(req->resc_request.num_vlan_filters,
317 				    bp->acquire_resp.resc.num_vlan_filters);
318 			req->resc_request.num_mc_filters =
319 				min(req->resc_request.num_mc_filters,
320 				    bp->acquire_resp.resc.num_mc_filters);
321 
322 			/* Clear response buffer */
323 			memset(&bp->vf2pf_mbox->resp, 0,
324 			       sizeof(union pfvf_tlvs));
325 		} else {
326 			/* Determine reason of PF failure of acquire process */
327 			fp_hsi_resp = bnx2x_search_tlv_list(bp, resp,
328 							    CHANNEL_TLV_FP_HSI_SUPPORT);
329 			if (fp_hsi_resp && !fp_hsi_resp->is_supported)
330 				BNX2X_ERR("Old hypervisor - doesn't support current fastpath HSI version; Need to downgrade VF driver [or upgrade hypervisor]\n");
331 			else
332 				BNX2X_ERR("Failed to get the requested amount of resources: %d. Breaking...\n",
333 					  bp->acquire_resp.hdr.status);
334 			rc = -EAGAIN;
335 			goto out;
336 		}
337 	}
338 
339 	/* Retrieve physical port id (if possible) */
340 	phys_port_resp = (struct vfpf_port_phys_id_resp_tlv *)
341 			 bnx2x_search_tlv_list(bp, resp,
342 					       CHANNEL_TLV_PHYS_PORT_ID);
343 	if (phys_port_resp) {
344 		memcpy(bp->phys_port_id, phys_port_resp->id, ETH_ALEN);
345 		bp->flags |= HAS_PHYS_PORT_ID;
346 	}
347 
348 	/* Old Hypevisors might not even support the FP_HSI_SUPPORT TLV.
349 	 * If that's the case, we need to make certain required FW was
350 	 * supported by such a hypervisor [i.e., v0-v2].
351 	 */
352 	fp_hsi_resp = bnx2x_search_tlv_list(bp, resp,
353 					    CHANNEL_TLV_FP_HSI_SUPPORT);
354 	if (!fp_hsi_resp && (ETH_FP_HSI_VERSION > ETH_FP_HSI_VER_2)) {
355 		BNX2X_ERR("Old hypervisor - need to downgrade VF's driver\n");
356 
357 		/* Since acquire succeeded on the PF side, we need to send a
358 		 * release message in order to allow future probes.
359 		 */
360 		bnx2x_vfpf_finalize(bp, &req->first_tlv);
361 		bnx2x_vfpf_release(bp);
362 
363 		rc = -EINVAL;
364 		goto out;
365 	}
366 
367 	/* get HW info */
368 	bp->common.chip_id |= (bp->acquire_resp.pfdev_info.chip_num & 0xffff);
369 	bp->link_params.chip_id = bp->common.chip_id;
370 	bp->db_size = bp->acquire_resp.pfdev_info.db_size;
371 	bp->common.int_block = INT_BLOCK_IGU;
372 	bp->common.chip_port_mode = CHIP_2_PORT_MODE;
373 	bp->igu_dsb_id = -1;
374 	bp->mf_ov = 0;
375 	bp->mf_mode = 0;
376 	bp->common.flash_size = 0;
377 	bp->flags |=
378 		NO_WOL_FLAG | NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG | NO_FCOE_FLAG;
379 	bp->igu_sb_cnt = bp->acquire_resp.resc.num_sbs;
380 	bp->igu_base_sb = bp->acquire_resp.resc.hw_sbs[0].hw_sb_id;
381 	bp->vlan_credit = bp->acquire_resp.resc.num_vlan_filters;
382 
383 	strlcpy(bp->fw_ver, bp->acquire_resp.pfdev_info.fw_ver,
384 		sizeof(bp->fw_ver));
385 
386 	if (is_valid_ether_addr(bp->acquire_resp.resc.current_mac_addr))
387 		memcpy(bp->dev->dev_addr,
388 		       bp->acquire_resp.resc.current_mac_addr,
389 		       ETH_ALEN);
390 
391 out:
392 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
393 	return rc;
394 }
395 
396 int bnx2x_vfpf_release(struct bnx2x *bp)
397 {
398 	struct vfpf_release_tlv *req = &bp->vf2pf_mbox->req.release;
399 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
400 	u32 rc, vf_id;
401 
402 	/* clear mailbox and prep first tlv */
403 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_RELEASE, sizeof(*req));
404 
405 	if (bnx2x_get_vf_id(bp, &vf_id)) {
406 		rc = -EAGAIN;
407 		goto out;
408 	}
409 
410 	req->vf_id = vf_id;
411 
412 	/* add list termination tlv */
413 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
414 		      sizeof(struct channel_list_end_tlv));
415 
416 	/* output tlvs list */
417 	bnx2x_dp_tlv_list(bp, req);
418 
419 	/* send release request */
420 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
421 
422 	if (rc)
423 		/* PF timeout */
424 		goto out;
425 
426 	if (resp->hdr.status == PFVF_STATUS_SUCCESS) {
427 		/* PF released us */
428 		DP(BNX2X_MSG_SP, "vf released\n");
429 	} else {
430 		/* PF reports error */
431 		BNX2X_ERR("PF failed our release request - are we out of sync? Response status: %d\n",
432 			  resp->hdr.status);
433 		rc = -EAGAIN;
434 		goto out;
435 	}
436 out:
437 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
438 
439 	return rc;
440 }
441 
442 /* Tell PF about SB addresses */
443 int bnx2x_vfpf_init(struct bnx2x *bp)
444 {
445 	struct vfpf_init_tlv *req = &bp->vf2pf_mbox->req.init;
446 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
447 	int rc, i;
448 
449 	/* clear mailbox and prep first tlv */
450 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_INIT, sizeof(*req));
451 
452 	/* status blocks */
453 	for_each_eth_queue(bp, i)
454 		req->sb_addr[i] = (dma_addr_t)bnx2x_fp(bp, i,
455 						       status_blk_mapping);
456 
457 	/* statistics - requests only supports single queue for now */
458 	req->stats_addr = bp->fw_stats_data_mapping +
459 			  offsetof(struct bnx2x_fw_stats_data, queue_stats);
460 
461 	req->stats_stride = sizeof(struct per_queue_stats);
462 
463 	/* add list termination tlv */
464 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
465 		      sizeof(struct channel_list_end_tlv));
466 
467 	/* output tlvs list */
468 	bnx2x_dp_tlv_list(bp, req);
469 
470 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
471 	if (rc)
472 		goto out;
473 
474 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
475 		BNX2X_ERR("INIT VF failed: %d. Breaking...\n",
476 			  resp->hdr.status);
477 		rc = -EAGAIN;
478 		goto out;
479 	}
480 
481 	DP(BNX2X_MSG_SP, "INIT VF Succeeded\n");
482 out:
483 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
484 
485 	return rc;
486 }
487 
488 /* CLOSE VF - opposite to INIT_VF */
489 void bnx2x_vfpf_close_vf(struct bnx2x *bp)
490 {
491 	struct vfpf_close_tlv *req = &bp->vf2pf_mbox->req.close;
492 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
493 	int i, rc;
494 	u32 vf_id;
495 
496 	/* If we haven't got a valid VF id, there is no sense to
497 	 * continue with sending messages
498 	 */
499 	if (bnx2x_get_vf_id(bp, &vf_id))
500 		goto free_irq;
501 
502 	/* Close the queues */
503 	for_each_queue(bp, i)
504 		bnx2x_vfpf_teardown_queue(bp, i);
505 
506 	/* remove mac */
507 	bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, false);
508 
509 	/* clear mailbox and prep first tlv */
510 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_CLOSE, sizeof(*req));
511 
512 	req->vf_id = vf_id;
513 
514 	/* add list termination tlv */
515 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
516 		      sizeof(struct channel_list_end_tlv));
517 
518 	/* output tlvs list */
519 	bnx2x_dp_tlv_list(bp, req);
520 
521 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
522 
523 	if (rc)
524 		BNX2X_ERR("Sending CLOSE failed. rc was: %d\n", rc);
525 
526 	else if (resp->hdr.status != PFVF_STATUS_SUCCESS)
527 		BNX2X_ERR("Sending CLOSE failed: pf response was %d\n",
528 			  resp->hdr.status);
529 
530 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
531 
532 free_irq:
533 	/* Disable HW interrupts, NAPI */
534 	bnx2x_netif_stop(bp, 0);
535 	/* Delete all NAPI objects */
536 	bnx2x_del_all_napi(bp);
537 
538 	/* Release IRQs */
539 	bnx2x_free_irq(bp);
540 }
541 
542 static void bnx2x_leading_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
543 				   struct bnx2x_vf_queue *q)
544 {
545 	u8 cl_id = vfq_cl_id(vf, q);
546 	u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
547 
548 	/* mac */
549 	bnx2x_init_mac_obj(bp, &q->mac_obj,
550 			   cl_id, q->cid, func_id,
551 			   bnx2x_vf_sp(bp, vf, mac_rdata),
552 			   bnx2x_vf_sp_map(bp, vf, mac_rdata),
553 			   BNX2X_FILTER_MAC_PENDING,
554 			   &vf->filter_state,
555 			   BNX2X_OBJ_TYPE_RX_TX,
556 			   &vf->vf_macs_pool);
557 	/* vlan */
558 	bnx2x_init_vlan_obj(bp, &q->vlan_obj,
559 			    cl_id, q->cid, func_id,
560 			    bnx2x_vf_sp(bp, vf, vlan_rdata),
561 			    bnx2x_vf_sp_map(bp, vf, vlan_rdata),
562 			    BNX2X_FILTER_VLAN_PENDING,
563 			    &vf->filter_state,
564 			    BNX2X_OBJ_TYPE_RX_TX,
565 			    &vf->vf_vlans_pool);
566 	/* vlan-mac */
567 	bnx2x_init_vlan_mac_obj(bp, &q->vlan_mac_obj,
568 				cl_id, q->cid, func_id,
569 				bnx2x_vf_sp(bp, vf, vlan_mac_rdata),
570 				bnx2x_vf_sp_map(bp, vf, vlan_mac_rdata),
571 				BNX2X_FILTER_VLAN_MAC_PENDING,
572 				&vf->filter_state,
573 				BNX2X_OBJ_TYPE_RX_TX,
574 				&vf->vf_macs_pool,
575 				&vf->vf_vlans_pool);
576 	/* mcast */
577 	bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id,
578 			     q->cid, func_id, func_id,
579 			     bnx2x_vf_sp(bp, vf, mcast_rdata),
580 			     bnx2x_vf_sp_map(bp, vf, mcast_rdata),
581 			     BNX2X_FILTER_MCAST_PENDING,
582 			     &vf->filter_state,
583 			     BNX2X_OBJ_TYPE_RX_TX);
584 
585 	/* rss */
586 	bnx2x_init_rss_config_obj(bp, &vf->rss_conf_obj, cl_id, q->cid,
587 				  func_id, func_id,
588 				  bnx2x_vf_sp(bp, vf, rss_rdata),
589 				  bnx2x_vf_sp_map(bp, vf, rss_rdata),
590 				  BNX2X_FILTER_RSS_CONF_PENDING,
591 				  &vf->filter_state,
592 				  BNX2X_OBJ_TYPE_RX_TX);
593 
594 	vf->leading_rss = cl_id;
595 	q->is_leading = true;
596 	q->sp_initialized = true;
597 }
598 
599 /* ask the pf to open a queue for the vf */
600 int bnx2x_vfpf_setup_q(struct bnx2x *bp, struct bnx2x_fastpath *fp,
601 		       bool is_leading)
602 {
603 	struct vfpf_setup_q_tlv *req = &bp->vf2pf_mbox->req.setup_q;
604 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
605 	u8 fp_idx = fp->index;
606 	u16 tpa_agg_size = 0, flags = 0;
607 	int rc;
608 
609 	/* clear mailbox and prep first tlv */
610 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SETUP_Q, sizeof(*req));
611 
612 	/* select tpa mode to request */
613 	if (fp->mode != TPA_MODE_DISABLED) {
614 		flags |= VFPF_QUEUE_FLG_TPA;
615 		flags |= VFPF_QUEUE_FLG_TPA_IPV6;
616 		if (fp->mode == TPA_MODE_GRO)
617 			flags |= VFPF_QUEUE_FLG_TPA_GRO;
618 		tpa_agg_size = TPA_AGG_SIZE;
619 	}
620 
621 	if (is_leading)
622 		flags |= VFPF_QUEUE_FLG_LEADING_RSS;
623 
624 	/* calculate queue flags */
625 	flags |= VFPF_QUEUE_FLG_STATS;
626 	flags |= VFPF_QUEUE_FLG_CACHE_ALIGN;
627 	flags |= VFPF_QUEUE_FLG_VLAN;
628 
629 	/* Common */
630 	req->vf_qid = fp_idx;
631 	req->param_valid = VFPF_RXQ_VALID | VFPF_TXQ_VALID;
632 
633 	/* Rx */
634 	req->rxq.rcq_addr = fp->rx_comp_mapping;
635 	req->rxq.rcq_np_addr = fp->rx_comp_mapping + BCM_PAGE_SIZE;
636 	req->rxq.rxq_addr = fp->rx_desc_mapping;
637 	req->rxq.sge_addr = fp->rx_sge_mapping;
638 	req->rxq.vf_sb = fp_idx;
639 	req->rxq.sb_index = HC_INDEX_ETH_RX_CQ_CONS;
640 	req->rxq.hc_rate = bp->rx_ticks ? 1000000/bp->rx_ticks : 0;
641 	req->rxq.mtu = bp->dev->mtu;
642 	req->rxq.buf_sz = fp->rx_buf_size;
643 	req->rxq.sge_buf_sz = BCM_PAGE_SIZE * PAGES_PER_SGE;
644 	req->rxq.tpa_agg_sz = tpa_agg_size;
645 	req->rxq.max_sge_pkt = SGE_PAGE_ALIGN(bp->dev->mtu) >> SGE_PAGE_SHIFT;
646 	req->rxq.max_sge_pkt = ((req->rxq.max_sge_pkt + PAGES_PER_SGE - 1) &
647 			  (~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
648 	req->rxq.flags = flags;
649 	req->rxq.drop_flags = 0;
650 	req->rxq.cache_line_log = BNX2X_RX_ALIGN_SHIFT;
651 	req->rxq.stat_id = -1; /* No stats at the moment */
652 
653 	/* Tx */
654 	req->txq.txq_addr = fp->txdata_ptr[FIRST_TX_COS_INDEX]->tx_desc_mapping;
655 	req->txq.vf_sb = fp_idx;
656 	req->txq.sb_index = HC_INDEX_ETH_TX_CQ_CONS_COS0;
657 	req->txq.hc_rate = bp->tx_ticks ? 1000000/bp->tx_ticks : 0;
658 	req->txq.flags = flags;
659 	req->txq.traffic_type = LLFC_TRAFFIC_TYPE_NW;
660 
661 	/* add list termination tlv */
662 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
663 		      sizeof(struct channel_list_end_tlv));
664 
665 	/* output tlvs list */
666 	bnx2x_dp_tlv_list(bp, req);
667 
668 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
669 	if (rc)
670 		BNX2X_ERR("Sending SETUP_Q message for queue[%d] failed!\n",
671 			  fp_idx);
672 
673 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
674 		BNX2X_ERR("Status of SETUP_Q for queue[%d] is %d\n",
675 			  fp_idx, resp->hdr.status);
676 		rc = -EINVAL;
677 	}
678 
679 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
680 
681 	return rc;
682 }
683 
684 static int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx)
685 {
686 	struct vfpf_q_op_tlv *req = &bp->vf2pf_mbox->req.q_op;
687 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
688 	int rc;
689 
690 	/* clear mailbox and prep first tlv */
691 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_TEARDOWN_Q,
692 			sizeof(*req));
693 
694 	req->vf_qid = qidx;
695 
696 	/* add list termination tlv */
697 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
698 		      sizeof(struct channel_list_end_tlv));
699 
700 	/* output tlvs list */
701 	bnx2x_dp_tlv_list(bp, req);
702 
703 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
704 
705 	if (rc) {
706 		BNX2X_ERR("Sending TEARDOWN for queue %d failed: %d\n", qidx,
707 			  rc);
708 		goto out;
709 	}
710 
711 	/* PF failed the transaction */
712 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
713 		BNX2X_ERR("TEARDOWN for queue %d failed: %d\n", qidx,
714 			  resp->hdr.status);
715 		rc = -EINVAL;
716 	}
717 
718 out:
719 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
720 
721 	return rc;
722 }
723 
724 /* request pf to add a mac for the vf */
725 int bnx2x_vfpf_config_mac(struct bnx2x *bp, u8 *addr, u8 vf_qid, bool set)
726 {
727 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
728 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
729 	struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
730 	int rc = 0;
731 
732 	/* clear mailbox and prep first tlv */
733 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
734 			sizeof(*req));
735 
736 	req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
737 	req->vf_qid = vf_qid;
738 	req->n_mac_vlan_filters = 1;
739 
740 	req->filters[0].flags = VFPF_Q_FILTER_DEST_MAC_VALID;
741 	if (set)
742 		req->filters[0].flags |= VFPF_Q_FILTER_SET;
743 
744 	/* sample bulletin board for new mac */
745 	bnx2x_sample_bulletin(bp);
746 
747 	/* copy mac from device to request */
748 	memcpy(req->filters[0].mac, addr, ETH_ALEN);
749 
750 	/* add list termination tlv */
751 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
752 		      sizeof(struct channel_list_end_tlv));
753 
754 	/* output tlvs list */
755 	bnx2x_dp_tlv_list(bp, req);
756 
757 	/* send message to pf */
758 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
759 	if (rc) {
760 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
761 		goto out;
762 	}
763 
764 	/* failure may mean PF was configured with a new mac for us */
765 	while (resp->hdr.status == PFVF_STATUS_FAILURE) {
766 		DP(BNX2X_MSG_IOV,
767 		   "vfpf SET MAC failed. Check bulletin board for new posts\n");
768 
769 		/* copy mac from bulletin to device */
770 		memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
771 
772 		/* check if bulletin board was updated */
773 		if (bnx2x_sample_bulletin(bp) == PFVF_BULLETIN_UPDATED) {
774 			/* copy mac from device to request */
775 			memcpy(req->filters[0].mac, bp->dev->dev_addr,
776 			       ETH_ALEN);
777 
778 			/* send message to pf */
779 			rc = bnx2x_send_msg2pf(bp, &resp->hdr.status,
780 					       bp->vf2pf_mbox_mapping);
781 		} else {
782 			/* no new info in bulletin */
783 			break;
784 		}
785 	}
786 
787 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
788 		BNX2X_ERR("vfpf SET MAC failed: %d\n", resp->hdr.status);
789 		rc = -EINVAL;
790 	}
791 out:
792 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
793 
794 	return rc;
795 }
796 
797 /* request pf to config rss table for vf queues*/
798 int bnx2x_vfpf_config_rss(struct bnx2x *bp,
799 			  struct bnx2x_config_rss_params *params)
800 {
801 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
802 	struct vfpf_rss_tlv *req = &bp->vf2pf_mbox->req.update_rss;
803 	int rc = 0;
804 
805 	/* clear mailbox and prep first tlv */
806 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_UPDATE_RSS,
807 			sizeof(*req));
808 
809 	/* add list termination tlv */
810 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
811 		      sizeof(struct channel_list_end_tlv));
812 
813 	memcpy(req->ind_table, params->ind_table, T_ETH_INDIRECTION_TABLE_SIZE);
814 	memcpy(req->rss_key, params->rss_key, sizeof(params->rss_key));
815 	req->ind_table_size = T_ETH_INDIRECTION_TABLE_SIZE;
816 	req->rss_key_size = T_ETH_RSS_KEY;
817 	req->rss_result_mask = params->rss_result_mask;
818 
819 	/* flags handled individually for backward/forward compatibility */
820 	if (params->rss_flags & (1 << BNX2X_RSS_MODE_DISABLED))
821 		req->rss_flags |= VFPF_RSS_MODE_DISABLED;
822 	if (params->rss_flags & (1 << BNX2X_RSS_MODE_REGULAR))
823 		req->rss_flags |= VFPF_RSS_MODE_REGULAR;
824 	if (params->rss_flags & (1 << BNX2X_RSS_SET_SRCH))
825 		req->rss_flags |= VFPF_RSS_SET_SRCH;
826 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4))
827 		req->rss_flags |= VFPF_RSS_IPV4;
828 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4_TCP))
829 		req->rss_flags |= VFPF_RSS_IPV4_TCP;
830 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4_UDP))
831 		req->rss_flags |= VFPF_RSS_IPV4_UDP;
832 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6))
833 		req->rss_flags |= VFPF_RSS_IPV6;
834 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6_TCP))
835 		req->rss_flags |= VFPF_RSS_IPV6_TCP;
836 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6_UDP))
837 		req->rss_flags |= VFPF_RSS_IPV6_UDP;
838 
839 	DP(BNX2X_MSG_IOV, "rss flags %x\n", req->rss_flags);
840 
841 	/* output tlvs list */
842 	bnx2x_dp_tlv_list(bp, req);
843 
844 	/* send message to pf */
845 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
846 	if (rc) {
847 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
848 		goto out;
849 	}
850 
851 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
852 		/* Since older drivers don't support this feature (and VF has
853 		 * no way of knowing other than failing this), don't propagate
854 		 * an error in this case.
855 		 */
856 		DP(BNX2X_MSG_IOV,
857 		   "Failed to send rss message to PF over VF-PF channel [%d]\n",
858 		   resp->hdr.status);
859 	}
860 out:
861 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
862 
863 	return rc;
864 }
865 
866 int bnx2x_vfpf_set_mcast(struct net_device *dev)
867 {
868 	struct bnx2x *bp = netdev_priv(dev);
869 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
870 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
871 	int rc, i = 0;
872 	struct netdev_hw_addr *ha;
873 
874 	if (bp->state != BNX2X_STATE_OPEN) {
875 		DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
876 		return -EINVAL;
877 	}
878 
879 	/* clear mailbox and prep first tlv */
880 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
881 			sizeof(*req));
882 
883 	/* Get Rx mode requested */
884 	DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags);
885 
886 	netdev_for_each_mc_addr(ha, dev) {
887 		DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n",
888 		   bnx2x_mc_addr(ha));
889 		memcpy(req->multicast[i], bnx2x_mc_addr(ha), ETH_ALEN);
890 		i++;
891 	}
892 
893 	/* We support four PFVF_MAX_MULTICAST_PER_VF mcast
894 	  * addresses tops
895 	  */
896 	if (i >= PFVF_MAX_MULTICAST_PER_VF) {
897 		DP(NETIF_MSG_IFUP,
898 		   "VF supports not more than %d multicast MAC addresses\n",
899 		   PFVF_MAX_MULTICAST_PER_VF);
900 		return -EINVAL;
901 	}
902 
903 	req->n_multicast = i;
904 	req->flags |= VFPF_SET_Q_FILTERS_MULTICAST_CHANGED;
905 	req->vf_qid = 0;
906 
907 	/* add list termination tlv */
908 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
909 		      sizeof(struct channel_list_end_tlv));
910 
911 	/* output tlvs list */
912 	bnx2x_dp_tlv_list(bp, req);
913 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
914 	if (rc) {
915 		BNX2X_ERR("Sending a message failed: %d\n", rc);
916 		goto out;
917 	}
918 
919 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
920 		BNX2X_ERR("Set Rx mode/multicast failed: %d\n",
921 			  resp->hdr.status);
922 		rc = -EINVAL;
923 	}
924 out:
925 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
926 
927 	return 0;
928 }
929 
930 /* request pf to add a vlan for the vf */
931 int bnx2x_vfpf_update_vlan(struct bnx2x *bp, u16 vid, u8 vf_qid, bool add)
932 {
933 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
934 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
935 	int rc = 0;
936 
937 	if (!(bp->acquire_resp.pfdev_info.pf_cap & PFVF_CAP_VLAN_FILTER)) {
938 		DP(BNX2X_MSG_IOV, "HV does not support vlan filtering\n");
939 		return 0;
940 	}
941 
942 	/* clear mailbox and prep first tlv */
943 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
944 			sizeof(*req));
945 
946 	req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
947 	req->vf_qid = vf_qid;
948 	req->n_mac_vlan_filters = 1;
949 
950 	req->filters[0].flags = VFPF_Q_FILTER_VLAN_TAG_VALID;
951 
952 	if (add)
953 		req->filters[0].flags |= VFPF_Q_FILTER_SET;
954 
955 	/* sample bulletin board for hypervisor vlan */
956 	bnx2x_sample_bulletin(bp);
957 
958 	if (bp->shadow_bulletin.content.valid_bitmap & 1 << VLAN_VALID) {
959 		BNX2X_ERR("Hypervisor will dicline the request, avoiding\n");
960 		rc = -EINVAL;
961 		goto out;
962 	}
963 
964 	req->filters[0].vlan_tag = vid;
965 
966 	/* add list termination tlv */
967 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
968 		      sizeof(struct channel_list_end_tlv));
969 
970 	/* output tlvs list */
971 	bnx2x_dp_tlv_list(bp, req);
972 
973 	/* send message to pf */
974 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
975 	if (rc) {
976 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
977 		goto out;
978 	}
979 
980 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
981 		BNX2X_ERR("vfpf %s VLAN %d failed\n", add ? "add" : "del",
982 			  vid);
983 		rc = -EINVAL;
984 	}
985 out:
986 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
987 
988 	return rc;
989 }
990 
991 int bnx2x_vfpf_storm_rx_mode(struct bnx2x *bp)
992 {
993 	int mode = bp->rx_mode;
994 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
995 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
996 	int rc;
997 
998 	/* clear mailbox and prep first tlv */
999 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
1000 			sizeof(*req));
1001 
1002 	DP(NETIF_MSG_IFUP, "Rx mode is %d\n", mode);
1003 
1004 	/* Ignore everything accept MODE_NONE */
1005 	if (mode  == BNX2X_RX_MODE_NONE) {
1006 		req->rx_mask = VFPF_RX_MASK_ACCEPT_NONE;
1007 	} else {
1008 		/* Current PF driver will not look at the specific flags,
1009 		 * but they are required when working with older drivers on hv.
1010 		 */
1011 		req->rx_mask = VFPF_RX_MASK_ACCEPT_MATCHED_MULTICAST;
1012 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST;
1013 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_BROADCAST;
1014 		if (mode == BNX2X_RX_MODE_PROMISC)
1015 			req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
1016 	}
1017 
1018 	if (bp->accept_any_vlan)
1019 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
1020 
1021 	req->flags |= VFPF_SET_Q_FILTERS_RX_MASK_CHANGED;
1022 	req->vf_qid = 0;
1023 
1024 	/* add list termination tlv */
1025 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
1026 		      sizeof(struct channel_list_end_tlv));
1027 
1028 	/* output tlvs list */
1029 	bnx2x_dp_tlv_list(bp, req);
1030 
1031 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
1032 	if (rc)
1033 		BNX2X_ERR("Sending a message failed: %d\n", rc);
1034 
1035 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1036 		BNX2X_ERR("Set Rx mode failed: %d\n", resp->hdr.status);
1037 		rc = -EINVAL;
1038 	}
1039 
1040 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
1041 
1042 	return rc;
1043 }
1044 
1045 /* General service functions */
1046 static void storm_memset_vf_mbx_ack(struct bnx2x *bp, u16 abs_fid)
1047 {
1048 	u32 addr = BAR_CSTRORM_INTMEM +
1049 		   CSTORM_VF_PF_CHANNEL_STATE_OFFSET(abs_fid);
1050 
1051 	REG_WR8(bp, addr, VF_PF_CHANNEL_STATE_READY);
1052 }
1053 
1054 static void storm_memset_vf_mbx_valid(struct bnx2x *bp, u16 abs_fid)
1055 {
1056 	u32 addr = BAR_CSTRORM_INTMEM +
1057 		   CSTORM_VF_PF_CHANNEL_VALID_OFFSET(abs_fid);
1058 
1059 	REG_WR8(bp, addr, 1);
1060 }
1061 
1062 /* enable vf_pf mailbox (aka vf-pf-channel) */
1063 void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid)
1064 {
1065 	bnx2x_vf_flr_clnup_epilog(bp, abs_vfid);
1066 
1067 	/* enable the mailbox in the FW */
1068 	storm_memset_vf_mbx_ack(bp, abs_vfid);
1069 	storm_memset_vf_mbx_valid(bp, abs_vfid);
1070 
1071 	/* enable the VF access to the mailbox */
1072 	bnx2x_vf_enable_access(bp, abs_vfid);
1073 }
1074 
1075 /* this works only on !E1h */
1076 static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf,
1077 				dma_addr_t pf_addr, u8 vfid, u32 vf_addr_hi,
1078 				u32 vf_addr_lo, u32 len32)
1079 {
1080 	struct dmae_command dmae;
1081 
1082 	if (CHIP_IS_E1x(bp)) {
1083 		BNX2X_ERR("Chip revision does not support VFs\n");
1084 		return DMAE_NOT_RDY;
1085 	}
1086 
1087 	if (!bp->dmae_ready) {
1088 		BNX2X_ERR("DMAE is not ready, can not copy\n");
1089 		return DMAE_NOT_RDY;
1090 	}
1091 
1092 	/* set opcode and fixed command fields */
1093 	bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_PCI);
1094 
1095 	if (from_vf) {
1096 		dmae.opcode_iov = (vfid << DMAE_COMMAND_SRC_VFID_SHIFT) |
1097 			(DMAE_SRC_VF << DMAE_COMMAND_SRC_VFPF_SHIFT) |
1098 			(DMAE_DST_PF << DMAE_COMMAND_DST_VFPF_SHIFT);
1099 
1100 		dmae.opcode |= (DMAE_C_DST << DMAE_COMMAND_C_FUNC_SHIFT);
1101 
1102 		dmae.src_addr_lo = vf_addr_lo;
1103 		dmae.src_addr_hi = vf_addr_hi;
1104 		dmae.dst_addr_lo = U64_LO(pf_addr);
1105 		dmae.dst_addr_hi = U64_HI(pf_addr);
1106 	} else {
1107 		dmae.opcode_iov = (vfid << DMAE_COMMAND_DST_VFID_SHIFT) |
1108 			(DMAE_DST_VF << DMAE_COMMAND_DST_VFPF_SHIFT) |
1109 			(DMAE_SRC_PF << DMAE_COMMAND_SRC_VFPF_SHIFT);
1110 
1111 		dmae.opcode |= (DMAE_C_SRC << DMAE_COMMAND_C_FUNC_SHIFT);
1112 
1113 		dmae.src_addr_lo = U64_LO(pf_addr);
1114 		dmae.src_addr_hi = U64_HI(pf_addr);
1115 		dmae.dst_addr_lo = vf_addr_lo;
1116 		dmae.dst_addr_hi = vf_addr_hi;
1117 	}
1118 	dmae.len = len32;
1119 
1120 	/* issue the command and wait for completion */
1121 	return bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
1122 }
1123 
1124 static void bnx2x_vf_mbx_resp_single_tlv(struct bnx2x *bp,
1125 					 struct bnx2x_virtf *vf)
1126 {
1127 	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
1128 	u16 length, type;
1129 
1130 	/* prepare response */
1131 	type = mbx->first_tlv.tl.type;
1132 	length = type == CHANNEL_TLV_ACQUIRE ?
1133 		sizeof(struct pfvf_acquire_resp_tlv) :
1134 		sizeof(struct pfvf_general_resp_tlv);
1135 	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, type, length);
1136 	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
1137 		      sizeof(struct channel_list_end_tlv));
1138 }
1139 
1140 static void bnx2x_vf_mbx_resp_send_msg(struct bnx2x *bp,
1141 				       struct bnx2x_virtf *vf,
1142 				       int vf_rc)
1143 {
1144 	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
1145 	struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
1146 	dma_addr_t pf_addr;
1147 	u64 vf_addr;
1148 	int rc;
1149 
1150 	bnx2x_dp_tlv_list(bp, resp);
1151 	DP(BNX2X_MSG_IOV, "mailbox vf address hi 0x%x, lo 0x%x, offset 0x%x\n",
1152 	   mbx->vf_addr_hi, mbx->vf_addr_lo, mbx->first_tlv.resp_msg_offset);
1153 
1154 	resp->hdr.status = bnx2x_pfvf_status_codes(vf_rc);
1155 
1156 	/* send response */
1157 	vf_addr = HILO_U64(mbx->vf_addr_hi, mbx->vf_addr_lo) +
1158 		  mbx->first_tlv.resp_msg_offset;
1159 	pf_addr = mbx->msg_mapping +
1160 		  offsetof(struct bnx2x_vf_mbx_msg, resp);
1161 
1162 	/* Copy the response buffer. The first u64 is written afterwards, as
1163 	 * the vf is sensitive to the header being written
1164 	 */
1165 	vf_addr += sizeof(u64);
1166 	pf_addr += sizeof(u64);
1167 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
1168 				  U64_HI(vf_addr),
1169 				  U64_LO(vf_addr),
1170 				  (sizeof(union pfvf_tlvs) - sizeof(u64))/4);
1171 	if (rc) {
1172 		BNX2X_ERR("Failed to copy response body to VF %d\n",
1173 			  vf->abs_vfid);
1174 		goto mbx_error;
1175 	}
1176 	vf_addr -= sizeof(u64);
1177 	pf_addr -= sizeof(u64);
1178 
1179 	/* ack the FW */
1180 	storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
1181 	mmiowb();
1182 
1183 	/* copy the response header including status-done field,
1184 	 * must be last dmae, must be after FW is acked
1185 	 */
1186 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
1187 				  U64_HI(vf_addr),
1188 				  U64_LO(vf_addr),
1189 				  sizeof(u64)/4);
1190 
1191 	/* unlock channel mutex */
1192 	bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
1193 
1194 	if (rc) {
1195 		BNX2X_ERR("Failed to copy response status to VF %d\n",
1196 			  vf->abs_vfid);
1197 		goto mbx_error;
1198 	}
1199 	return;
1200 
1201 mbx_error:
1202 	bnx2x_vf_release(bp, vf);
1203 }
1204 
1205 static void bnx2x_vf_mbx_resp(struct bnx2x *bp,
1206 			      struct bnx2x_virtf *vf,
1207 			      int rc)
1208 {
1209 	bnx2x_vf_mbx_resp_single_tlv(bp, vf);
1210 	bnx2x_vf_mbx_resp_send_msg(bp, vf, rc);
1211 }
1212 
1213 static void bnx2x_vf_mbx_resp_phys_port(struct bnx2x *bp,
1214 					struct bnx2x_virtf *vf,
1215 					void *buffer,
1216 					u16 *offset)
1217 {
1218 	struct vfpf_port_phys_id_resp_tlv *port_id;
1219 
1220 	if (!(bp->flags & HAS_PHYS_PORT_ID))
1221 		return;
1222 
1223 	bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_PHYS_PORT_ID,
1224 		      sizeof(struct vfpf_port_phys_id_resp_tlv));
1225 
1226 	port_id = (struct vfpf_port_phys_id_resp_tlv *)
1227 		  (((u8 *)buffer) + *offset);
1228 	memcpy(port_id->id, bp->phys_port_id, ETH_ALEN);
1229 
1230 	/* Offset should continue representing the offset to the tail
1231 	 * of TLV data (outside this function scope)
1232 	 */
1233 	*offset += sizeof(struct vfpf_port_phys_id_resp_tlv);
1234 }
1235 
1236 static void bnx2x_vf_mbx_resp_fp_hsi_ver(struct bnx2x *bp,
1237 					 struct bnx2x_virtf *vf,
1238 					 void *buffer,
1239 					 u16 *offset)
1240 {
1241 	struct vfpf_fp_hsi_resp_tlv *fp_hsi;
1242 
1243 	bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_FP_HSI_SUPPORT,
1244 		      sizeof(struct vfpf_fp_hsi_resp_tlv));
1245 
1246 	fp_hsi = (struct vfpf_fp_hsi_resp_tlv *)
1247 		 (((u8 *)buffer) + *offset);
1248 	fp_hsi->is_supported = (vf->fp_hsi > ETH_FP_HSI_VERSION) ? 0 : 1;
1249 
1250 	/* Offset should continue representing the offset to the tail
1251 	 * of TLV data (outside this function scope)
1252 	 */
1253 	*offset += sizeof(struct vfpf_fp_hsi_resp_tlv);
1254 }
1255 
1256 static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
1257 				      struct bnx2x_vf_mbx *mbx, int vfop_status)
1258 {
1259 	int i;
1260 	struct pfvf_acquire_resp_tlv *resp = &mbx->msg->resp.acquire_resp;
1261 	struct pf_vf_resc *resc = &resp->resc;
1262 	u8 status = bnx2x_pfvf_status_codes(vfop_status);
1263 	u16 length;
1264 
1265 	memset(resp, 0, sizeof(*resp));
1266 
1267 	/* fill in pfdev info */
1268 	resp->pfdev_info.chip_num = bp->common.chip_id;
1269 	resp->pfdev_info.db_size = bp->db_size;
1270 	resp->pfdev_info.indices_per_sb = HC_SB_MAX_INDICES_E2;
1271 	resp->pfdev_info.pf_cap = (PFVF_CAP_RSS |
1272 				   PFVF_CAP_TPA |
1273 				   PFVF_CAP_TPA_UPDATE |
1274 				   PFVF_CAP_VLAN_FILTER);
1275 	bnx2x_fill_fw_str(bp, resp->pfdev_info.fw_ver,
1276 			  sizeof(resp->pfdev_info.fw_ver));
1277 
1278 	if (status == PFVF_STATUS_NO_RESOURCE ||
1279 	    status == PFVF_STATUS_SUCCESS) {
1280 		/* set resources numbers, if status equals NO_RESOURCE these
1281 		 * are max possible numbers
1282 		 */
1283 		resc->num_rxqs = vf_rxq_count(vf) ? :
1284 			bnx2x_vf_max_queue_cnt(bp, vf);
1285 		resc->num_txqs = vf_txq_count(vf) ? :
1286 			bnx2x_vf_max_queue_cnt(bp, vf);
1287 		resc->num_sbs = vf_sb_count(vf);
1288 		resc->num_mac_filters = vf_mac_rules_cnt(vf);
1289 		resc->num_vlan_filters = vf_vlan_rules_cnt(vf);
1290 		resc->num_mc_filters = 0;
1291 
1292 		if (status == PFVF_STATUS_SUCCESS) {
1293 			/* fill in the allocated resources */
1294 			struct pf_vf_bulletin_content *bulletin =
1295 				BP_VF_BULLETIN(bp, vf->index);
1296 
1297 			for_each_vfq(vf, i)
1298 				resc->hw_qid[i] =
1299 					vfq_qzone_id(vf, vfq_get(vf, i));
1300 
1301 			for_each_vf_sb(vf, i) {
1302 				resc->hw_sbs[i].hw_sb_id = vf_igu_sb(vf, i);
1303 				resc->hw_sbs[i].sb_qid = vf_hc_qzone(vf, i);
1304 			}
1305 
1306 			/* if a mac has been set for this vf, supply it */
1307 			if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
1308 				memcpy(resc->current_mac_addr, bulletin->mac,
1309 				       ETH_ALEN);
1310 			}
1311 		}
1312 	}
1313 
1314 	DP(BNX2X_MSG_IOV, "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%x\n"
1315 	   "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d, n_mcs-%d, fw_ver: '%s'\n",
1316 	   vf->abs_vfid,
1317 	   resp->pfdev_info.chip_num,
1318 	   resp->pfdev_info.db_size,
1319 	   resp->pfdev_info.indices_per_sb,
1320 	   resp->pfdev_info.pf_cap,
1321 	   resc->num_rxqs,
1322 	   resc->num_txqs,
1323 	   resc->num_sbs,
1324 	   resc->num_mac_filters,
1325 	   resc->num_vlan_filters,
1326 	   resc->num_mc_filters,
1327 	   resp->pfdev_info.fw_ver);
1328 
1329 	DP_CONT(BNX2X_MSG_IOV, "hw_qids- [ ");
1330 	for (i = 0; i < vf_rxq_count(vf); i++)
1331 		DP_CONT(BNX2X_MSG_IOV, "%d ", resc->hw_qid[i]);
1332 	DP_CONT(BNX2X_MSG_IOV, "], sb_info- [ ");
1333 	for (i = 0; i < vf_sb_count(vf); i++)
1334 		DP_CONT(BNX2X_MSG_IOV, "%d:%d ",
1335 			resc->hw_sbs[i].hw_sb_id,
1336 			resc->hw_sbs[i].sb_qid);
1337 	DP_CONT(BNX2X_MSG_IOV, "]\n");
1338 
1339 	/* prepare response */
1340 	length = sizeof(struct pfvf_acquire_resp_tlv);
1341 	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, CHANNEL_TLV_ACQUIRE, length);
1342 
1343 	/* Handle possible VF requests for physical port identifiers.
1344 	 * 'length' should continue to indicate the offset of the first empty
1345 	 * place in the buffer (i.e., where next TLV should be inserted)
1346 	 */
1347 	if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
1348 				  CHANNEL_TLV_PHYS_PORT_ID))
1349 		bnx2x_vf_mbx_resp_phys_port(bp, vf, &mbx->msg->resp, &length);
1350 
1351 	/* `New' vfs will want to know if fastpath HSI is supported, since
1352 	 * if that's not the case they could print into system log the fact
1353 	 * the driver version must be updated.
1354 	 */
1355 	bnx2x_vf_mbx_resp_fp_hsi_ver(bp, vf, &mbx->msg->resp, &length);
1356 
1357 	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
1358 		      sizeof(struct channel_list_end_tlv));
1359 
1360 	/* send the response */
1361 	bnx2x_vf_mbx_resp_send_msg(bp, vf, vfop_status);
1362 }
1363 
1364 static bool bnx2x_vf_mbx_is_windows_vm(struct bnx2x *bp,
1365 				       struct vfpf_acquire_tlv *acquire)
1366 {
1367 	/* Windows driver does one of three things:
1368 	 * 1. Old driver doesn't have bulletin board address set.
1369 	 * 2. 'Middle' driver sends mc_num == 32.
1370 	 * 3. New driver sets the OS field.
1371 	 */
1372 	if (!acquire->bulletin_addr ||
1373 	    acquire->resc_request.num_mc_filters == 32 ||
1374 	    ((acquire->vfdev_info.vf_os & VF_OS_MASK) ==
1375 	     VF_OS_WINDOWS))
1376 		return true;
1377 
1378 	return false;
1379 }
1380 
1381 static int bnx2x_vf_mbx_acquire_chk_dorq(struct bnx2x *bp,
1382 					 struct bnx2x_virtf *vf,
1383 					 struct bnx2x_vf_mbx *mbx)
1384 {
1385 	/* Linux drivers which correctly set the doorbell size also
1386 	 * send a physical port request
1387 	 */
1388 	if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
1389 				  CHANNEL_TLV_PHYS_PORT_ID))
1390 		return 0;
1391 
1392 	/* Issue does not exist in windows VMs */
1393 	if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
1394 		return 0;
1395 
1396 	return -EOPNOTSUPP;
1397 }
1398 
1399 static void bnx2x_vf_mbx_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
1400 				 struct bnx2x_vf_mbx *mbx)
1401 {
1402 	int rc;
1403 	struct vfpf_acquire_tlv *acquire = &mbx->msg->req.acquire;
1404 
1405 	/* log vfdef info */
1406 	DP(BNX2X_MSG_IOV,
1407 	   "VF[%d] ACQUIRE: vfdev_info- vf_id %d, vf_os %d resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d, n_mcs-%d\n",
1408 	   vf->abs_vfid, acquire->vfdev_info.vf_id, acquire->vfdev_info.vf_os,
1409 	   acquire->resc_request.num_rxqs, acquire->resc_request.num_txqs,
1410 	   acquire->resc_request.num_sbs, acquire->resc_request.num_mac_filters,
1411 	   acquire->resc_request.num_vlan_filters,
1412 	   acquire->resc_request.num_mc_filters);
1413 
1414 	/* Prevent VFs with old drivers from loading, since they calculate
1415 	 * CIDs incorrectly requiring a VF-flr [VM reboot] in order to recover
1416 	 * while being upgraded.
1417 	 */
1418 	rc = bnx2x_vf_mbx_acquire_chk_dorq(bp, vf, mbx);
1419 	if (rc) {
1420 		DP(BNX2X_MSG_IOV,
1421 		   "VF [%d] - Can't support acquire request due to doorbell mismatch. Please update VM driver\n",
1422 		   vf->abs_vfid);
1423 		goto out;
1424 	}
1425 
1426 	/* Verify the VF fastpath HSI can be supported by the loaded FW.
1427 	 * Linux vfs should be oblivious to changes between v0 and v2.
1428 	 */
1429 	if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
1430 		vf->fp_hsi = acquire->vfdev_info.fp_hsi_ver;
1431 	else
1432 		vf->fp_hsi = max_t(u8, acquire->vfdev_info.fp_hsi_ver,
1433 				   ETH_FP_HSI_VER_2);
1434 	if (vf->fp_hsi > ETH_FP_HSI_VERSION) {
1435 		DP(BNX2X_MSG_IOV,
1436 		   "VF [%d] - Can't support acquire request since VF requests a FW version which is too new [%02x > %02x]\n",
1437 		   vf->abs_vfid, acquire->vfdev_info.fp_hsi_ver,
1438 		   ETH_FP_HSI_VERSION);
1439 		rc = -EINVAL;
1440 		goto out;
1441 	}
1442 
1443 	/* acquire the resources */
1444 	rc = bnx2x_vf_acquire(bp, vf, &acquire->resc_request);
1445 
1446 	/* store address of vf's bulletin board */
1447 	vf->bulletin_map = acquire->bulletin_addr;
1448 	if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_EXT_BULLETIN) {
1449 		DP(BNX2X_MSG_IOV, "VF[%d] supports long bulletin boards\n",
1450 		   vf->abs_vfid);
1451 		vf->cfg_flags |= VF_CFG_EXT_BULLETIN;
1452 	} else {
1453 		vf->cfg_flags &= ~VF_CFG_EXT_BULLETIN;
1454 	}
1455 
1456 	if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_VLAN_FILTER) {
1457 		DP(BNX2X_MSG_IOV, "VF[%d] supports vlan filtering\n",
1458 		   vf->abs_vfid);
1459 		vf->cfg_flags |= VF_CFG_VLAN_FILTER;
1460 	} else {
1461 		vf->cfg_flags &= ~VF_CFG_VLAN_FILTER;
1462 	}
1463 
1464 out:
1465 	/* response */
1466 	bnx2x_vf_mbx_acquire_resp(bp, vf, mbx, rc);
1467 }
1468 
1469 static void bnx2x_vf_mbx_init_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1470 			      struct bnx2x_vf_mbx *mbx)
1471 {
1472 	struct vfpf_init_tlv *init = &mbx->msg->req.init;
1473 	int rc;
1474 
1475 	/* record ghost addresses from vf message */
1476 	vf->fw_stat_map = init->stats_addr;
1477 	vf->stats_stride = init->stats_stride;
1478 	rc = bnx2x_vf_init(bp, vf, (dma_addr_t *)init->sb_addr);
1479 
1480 	/* set VF multiqueue statistics collection mode */
1481 	if (init->flags & VFPF_INIT_FLG_STATS_COALESCE)
1482 		vf->cfg_flags |= VF_CFG_STATS_COALESCE;
1483 
1484 	/* Update VF's view of link state */
1485 	if (vf->cfg_flags & VF_CFG_EXT_BULLETIN)
1486 		bnx2x_iov_link_update_vf(bp, vf->index);
1487 
1488 	/* response */
1489 	bnx2x_vf_mbx_resp(bp, vf, rc);
1490 }
1491 
1492 /* convert MBX queue-flags to standard SP queue-flags */
1493 static void bnx2x_vf_mbx_set_q_flags(struct bnx2x *bp, u32 mbx_q_flags,
1494 				     unsigned long *sp_q_flags)
1495 {
1496 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA)
1497 		__set_bit(BNX2X_Q_FLG_TPA, sp_q_flags);
1498 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_IPV6)
1499 		__set_bit(BNX2X_Q_FLG_TPA_IPV6, sp_q_flags);
1500 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_GRO)
1501 		__set_bit(BNX2X_Q_FLG_TPA_GRO, sp_q_flags);
1502 	if (mbx_q_flags & VFPF_QUEUE_FLG_STATS)
1503 		__set_bit(BNX2X_Q_FLG_STATS, sp_q_flags);
1504 	if (mbx_q_flags & VFPF_QUEUE_FLG_VLAN)
1505 		__set_bit(BNX2X_Q_FLG_VLAN, sp_q_flags);
1506 	if (mbx_q_flags & VFPF_QUEUE_FLG_COS)
1507 		__set_bit(BNX2X_Q_FLG_COS, sp_q_flags);
1508 	if (mbx_q_flags & VFPF_QUEUE_FLG_HC)
1509 		__set_bit(BNX2X_Q_FLG_HC, sp_q_flags);
1510 	if (mbx_q_flags & VFPF_QUEUE_FLG_DHC)
1511 		__set_bit(BNX2X_Q_FLG_DHC, sp_q_flags);
1512 	if (mbx_q_flags & VFPF_QUEUE_FLG_LEADING_RSS)
1513 		__set_bit(BNX2X_Q_FLG_LEADING_RSS, sp_q_flags);
1514 
1515 	/* outer vlan removal is set according to PF's multi function mode */
1516 	if (IS_MF_SD(bp))
1517 		__set_bit(BNX2X_Q_FLG_OV, sp_q_flags);
1518 }
1519 
1520 static void bnx2x_vf_mbx_setup_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
1521 				 struct bnx2x_vf_mbx *mbx)
1522 {
1523 	struct vfpf_setup_q_tlv *setup_q = &mbx->msg->req.setup_q;
1524 	struct bnx2x_vf_queue_construct_params qctor;
1525 	int rc = 0;
1526 
1527 	/* verify vf_qid */
1528 	if (setup_q->vf_qid >= vf_rxq_count(vf)) {
1529 		BNX2X_ERR("vf_qid %d invalid, max queue count is %d\n",
1530 			  setup_q->vf_qid, vf_rxq_count(vf));
1531 		rc = -EINVAL;
1532 		goto response;
1533 	}
1534 
1535 	/* tx queues must be setup alongside rx queues thus if the rx queue
1536 	 * is not marked as valid there's nothing to do.
1537 	 */
1538 	if (setup_q->param_valid & (VFPF_RXQ_VALID|VFPF_TXQ_VALID)) {
1539 		struct bnx2x_vf_queue *q = vfq_get(vf, setup_q->vf_qid);
1540 		unsigned long q_type = 0;
1541 
1542 		struct bnx2x_queue_init_params *init_p;
1543 		struct bnx2x_queue_setup_params *setup_p;
1544 
1545 		if (bnx2x_vfq_is_leading(q))
1546 			bnx2x_leading_vfq_init(bp, vf, q);
1547 
1548 		/* re-init the VF operation context */
1549 		memset(&qctor, 0 ,
1550 		       sizeof(struct bnx2x_vf_queue_construct_params));
1551 		setup_p = &qctor.prep_qsetup;
1552 		init_p =  &qctor.qstate.params.init;
1553 
1554 		/* activate immediately */
1555 		__set_bit(BNX2X_Q_FLG_ACTIVE, &setup_p->flags);
1556 
1557 		if (setup_q->param_valid & VFPF_TXQ_VALID) {
1558 			struct bnx2x_txq_setup_params *txq_params =
1559 				&setup_p->txq_params;
1560 
1561 			__set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
1562 
1563 			/* save sb resource index */
1564 			q->sb_idx = setup_q->txq.vf_sb;
1565 
1566 			/* tx init */
1567 			init_p->tx.hc_rate = setup_q->txq.hc_rate;
1568 			init_p->tx.sb_cq_index = setup_q->txq.sb_index;
1569 
1570 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
1571 						 &init_p->tx.flags);
1572 
1573 			/* tx setup - flags */
1574 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
1575 						 &setup_p->flags);
1576 
1577 			/* tx setup - general, nothing */
1578 
1579 			/* tx setup - tx */
1580 			txq_params->dscr_map = setup_q->txq.txq_addr;
1581 			txq_params->sb_cq_index = setup_q->txq.sb_index;
1582 			txq_params->traffic_type = setup_q->txq.traffic_type;
1583 
1584 			bnx2x_vfop_qctor_dump_tx(bp, vf, init_p, setup_p,
1585 						 q->index, q->sb_idx);
1586 		}
1587 
1588 		if (setup_q->param_valid & VFPF_RXQ_VALID) {
1589 			struct bnx2x_rxq_setup_params *rxq_params =
1590 							&setup_p->rxq_params;
1591 
1592 			__set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
1593 
1594 			/* Note: there is no support for different SBs
1595 			 * for TX and RX
1596 			 */
1597 			q->sb_idx = setup_q->rxq.vf_sb;
1598 
1599 			/* rx init */
1600 			init_p->rx.hc_rate = setup_q->rxq.hc_rate;
1601 			init_p->rx.sb_cq_index = setup_q->rxq.sb_index;
1602 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
1603 						 &init_p->rx.flags);
1604 
1605 			/* rx setup - flags */
1606 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
1607 						 &setup_p->flags);
1608 
1609 			/* rx setup - general */
1610 			setup_p->gen_params.mtu = setup_q->rxq.mtu;
1611 
1612 			/* rx setup - rx */
1613 			rxq_params->drop_flags = setup_q->rxq.drop_flags;
1614 			rxq_params->dscr_map = setup_q->rxq.rxq_addr;
1615 			rxq_params->sge_map = setup_q->rxq.sge_addr;
1616 			rxq_params->rcq_map = setup_q->rxq.rcq_addr;
1617 			rxq_params->rcq_np_map = setup_q->rxq.rcq_np_addr;
1618 			rxq_params->buf_sz = setup_q->rxq.buf_sz;
1619 			rxq_params->tpa_agg_sz = setup_q->rxq.tpa_agg_sz;
1620 			rxq_params->max_sges_pkt = setup_q->rxq.max_sge_pkt;
1621 			rxq_params->sge_buf_sz = setup_q->rxq.sge_buf_sz;
1622 			rxq_params->cache_line_log =
1623 				setup_q->rxq.cache_line_log;
1624 			rxq_params->sb_cq_index = setup_q->rxq.sb_index;
1625 
1626 			/* rx setup - multicast engine */
1627 			if (bnx2x_vfq_is_leading(q)) {
1628 				u8 mcast_id = FW_VF_HANDLE(vf->abs_vfid);
1629 
1630 				rxq_params->mcast_engine_id = mcast_id;
1631 				__set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags);
1632 			}
1633 
1634 			bnx2x_vfop_qctor_dump_rx(bp, vf, init_p, setup_p,
1635 						 q->index, q->sb_idx);
1636 		}
1637 		/* complete the preparations */
1638 		bnx2x_vfop_qctor_prep(bp, vf, q, &qctor, q_type);
1639 
1640 		rc = bnx2x_vf_queue_setup(bp, vf, q->index, &qctor);
1641 		if (rc)
1642 			goto response;
1643 	}
1644 response:
1645 	bnx2x_vf_mbx_resp(bp, vf, rc);
1646 }
1647 
1648 static int bnx2x_vf_mbx_macvlan_list(struct bnx2x *bp,
1649 				     struct bnx2x_virtf *vf,
1650 				     struct vfpf_set_q_filters_tlv *tlv,
1651 				     struct bnx2x_vf_mac_vlan_filters **pfl,
1652 				     u32 type_flag)
1653 {
1654 	int i, j;
1655 	struct bnx2x_vf_mac_vlan_filters *fl = NULL;
1656 	size_t fsz;
1657 
1658 	fsz = tlv->n_mac_vlan_filters *
1659 	      sizeof(struct bnx2x_vf_mac_vlan_filter) +
1660 	      sizeof(struct bnx2x_vf_mac_vlan_filters);
1661 
1662 	fl = kzalloc(fsz, GFP_KERNEL);
1663 	if (!fl)
1664 		return -ENOMEM;
1665 
1666 	for (i = 0, j = 0; i < tlv->n_mac_vlan_filters; i++) {
1667 		struct vfpf_q_mac_vlan_filter *msg_filter = &tlv->filters[i];
1668 
1669 		if ((msg_filter->flags & type_flag) != type_flag)
1670 			continue;
1671 		memset(&fl->filters[j], 0, sizeof(fl->filters[j]));
1672 		if (type_flag & VFPF_Q_FILTER_DEST_MAC_VALID) {
1673 			fl->filters[j].mac = msg_filter->mac;
1674 			fl->filters[j].type |= BNX2X_VF_FILTER_MAC;
1675 		}
1676 		if (type_flag & VFPF_Q_FILTER_VLAN_TAG_VALID) {
1677 			fl->filters[j].vid = msg_filter->vlan_tag;
1678 			fl->filters[j].type |= BNX2X_VF_FILTER_VLAN;
1679 		}
1680 		fl->filters[j].add = !!(msg_filter->flags & VFPF_Q_FILTER_SET);
1681 		fl->count++;
1682 		j++;
1683 	}
1684 	if (!fl->count)
1685 		kfree(fl);
1686 	else
1687 		*pfl = fl;
1688 
1689 	return 0;
1690 }
1691 
1692 static int bnx2x_vf_filters_contain(struct vfpf_set_q_filters_tlv *filters,
1693 				    u32 flags)
1694 {
1695 	int i, cnt = 0;
1696 
1697 	for (i = 0; i < filters->n_mac_vlan_filters; i++)
1698 		if  ((filters->filters[i].flags & flags) == flags)
1699 			cnt++;
1700 
1701 	return cnt;
1702 }
1703 
1704 static void bnx2x_vf_mbx_dp_q_filter(struct bnx2x *bp, int msglvl, int idx,
1705 				       struct vfpf_q_mac_vlan_filter *filter)
1706 {
1707 	DP(msglvl, "MAC-VLAN[%d] -- flags=0x%x\n", idx, filter->flags);
1708 	if (filter->flags & VFPF_Q_FILTER_VLAN_TAG_VALID)
1709 		DP_CONT(msglvl, ", vlan=%d", filter->vlan_tag);
1710 	if (filter->flags & VFPF_Q_FILTER_DEST_MAC_VALID)
1711 		DP_CONT(msglvl, ", MAC=%pM", filter->mac);
1712 	DP_CONT(msglvl, "\n");
1713 }
1714 
1715 static void bnx2x_vf_mbx_dp_q_filters(struct bnx2x *bp, int msglvl,
1716 				       struct vfpf_set_q_filters_tlv *filters)
1717 {
1718 	int i;
1719 
1720 	if (filters->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED)
1721 		for (i = 0; i < filters->n_mac_vlan_filters; i++)
1722 			bnx2x_vf_mbx_dp_q_filter(bp, msglvl, i,
1723 						 &filters->filters[i]);
1724 
1725 	if (filters->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED)
1726 		DP(msglvl, "RX-MASK=0x%x\n", filters->rx_mask);
1727 
1728 	if (filters->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED)
1729 		for (i = 0; i < filters->n_multicast; i++)
1730 			DP(msglvl, "MULTICAST=%pM\n", filters->multicast[i]);
1731 }
1732 
1733 #define VFPF_MAC_FILTER		VFPF_Q_FILTER_DEST_MAC_VALID
1734 #define VFPF_VLAN_FILTER	VFPF_Q_FILTER_VLAN_TAG_VALID
1735 #define VFPF_VLAN_MAC_FILTER	(VFPF_VLAN_FILTER | VFPF_MAC_FILTER)
1736 
1737 static int bnx2x_vf_mbx_qfilters(struct bnx2x *bp, struct bnx2x_virtf *vf)
1738 {
1739 	int rc = 0;
1740 
1741 	struct vfpf_set_q_filters_tlv *msg =
1742 		&BP_VF_MBX(bp, vf->index)->msg->req.set_q_filters;
1743 
1744 	/* check for any mac/vlan changes */
1745 	if (msg->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED) {
1746 		struct bnx2x_vf_mac_vlan_filters *fl = NULL;
1747 
1748 		/* build vlan-mac list */
1749 		rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
1750 					       VFPF_VLAN_MAC_FILTER);
1751 		if (rc)
1752 			goto op_err;
1753 
1754 		if (fl) {
1755 
1756 			/* set vlan-mac list */
1757 			rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
1758 							   msg->vf_qid,
1759 							   false);
1760 			if (rc)
1761 				goto op_err;
1762 		}
1763 
1764 		/* build mac list */
1765 		fl = NULL;
1766 
1767 		rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
1768 					       VFPF_MAC_FILTER);
1769 		if (rc)
1770 			goto op_err;
1771 
1772 		if (fl) {
1773 			/* set mac list */
1774 			rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
1775 							   msg->vf_qid,
1776 							   false);
1777 			if (rc)
1778 				goto op_err;
1779 		}
1780 
1781 	}
1782 
1783 	if (msg->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED) {
1784 		unsigned long accept = 0;
1785 		struct pf_vf_bulletin_content *bulletin =
1786 					BP_VF_BULLETIN(bp, vf->index);
1787 
1788 		/* Ignore VF requested mode; instead set a regular mode */
1789 		if (msg->rx_mask !=  VFPF_RX_MASK_ACCEPT_NONE) {
1790 			__set_bit(BNX2X_ACCEPT_UNICAST, &accept);
1791 			__set_bit(BNX2X_ACCEPT_MULTICAST, &accept);
1792 			__set_bit(BNX2X_ACCEPT_BROADCAST, &accept);
1793 		}
1794 
1795 		/* any_vlan is not configured if HV is forcing VLAN
1796 		 * any_vlan is configured if
1797 		 *   1. VF does not support vlan filtering
1798 		 *   OR
1799 		 *   2. VF supports vlan filtering and explicitly requested it
1800 		 */
1801 		if (!(bulletin->valid_bitmap & (1 << VLAN_VALID)) &&
1802 		    (!(vf->cfg_flags & VF_CFG_VLAN_FILTER) ||
1803 		     msg->rx_mask & VFPF_RX_MASK_ACCEPT_ANY_VLAN))
1804 			__set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept);
1805 
1806 		/* set rx-mode */
1807 		rc = bnx2x_vf_rxmode(bp, vf, msg->vf_qid, accept);
1808 		if (rc)
1809 			goto op_err;
1810 	}
1811 
1812 	if (msg->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED) {
1813 		/* set mcasts */
1814 		rc = bnx2x_vf_mcast(bp, vf, msg->multicast,
1815 				    msg->n_multicast, false);
1816 		if (rc)
1817 			goto op_err;
1818 	}
1819 op_err:
1820 	if (rc)
1821 		BNX2X_ERR("QFILTERS[%d:%d] error: rc %d\n",
1822 			  vf->abs_vfid, msg->vf_qid, rc);
1823 	return rc;
1824 }
1825 
1826 static int bnx2x_filters_validate_mac(struct bnx2x *bp,
1827 				      struct bnx2x_virtf *vf,
1828 				      struct vfpf_set_q_filters_tlv *filters)
1829 {
1830 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
1831 	int rc = 0;
1832 
1833 	/* if a mac was already set for this VF via the set vf mac ndo, we only
1834 	 * accept mac configurations of that mac. Why accept them at all?
1835 	 * because PF may have been unable to configure the mac at the time
1836 	 * since queue was not set up.
1837 	 */
1838 	if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
1839 		struct vfpf_q_mac_vlan_filter *filter = NULL;
1840 		int i;
1841 
1842 		for (i = 0; i < filters->n_mac_vlan_filters; i++) {
1843 			if (!(filters->filters[i].flags &
1844 			      VFPF_Q_FILTER_DEST_MAC_VALID))
1845 				continue;
1846 
1847 			/* once a mac was set by ndo can only accept
1848 			 * a single mac...
1849 			 */
1850 			if (filter) {
1851 				BNX2X_ERR("VF[%d] requested the addition of multiple macs after set_vf_mac ndo was called [%d filters]\n",
1852 					  vf->abs_vfid,
1853 					  filters->n_mac_vlan_filters);
1854 				rc = -EPERM;
1855 				goto response;
1856 			}
1857 
1858 			filter = &filters->filters[i];
1859 		}
1860 
1861 		/* ...and only the mac set by the ndo */
1862 		if (filter &&
1863 		    !ether_addr_equal(filter->mac, bulletin->mac)) {
1864 			BNX2X_ERR("VF[%d] requested the addition of a mac address not matching the one configured by set_vf_mac ndo\n",
1865 				  vf->abs_vfid);
1866 
1867 			rc = -EPERM;
1868 			goto response;
1869 		}
1870 	}
1871 
1872 response:
1873 	return rc;
1874 }
1875 
1876 static int bnx2x_filters_validate_vlan(struct bnx2x *bp,
1877 				       struct bnx2x_virtf *vf,
1878 				       struct vfpf_set_q_filters_tlv *filters)
1879 {
1880 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
1881 	int rc = 0;
1882 
1883 	/* if vlan was set by hypervisor we don't allow guest to config vlan */
1884 	if (bulletin->valid_bitmap & 1 << VLAN_VALID) {
1885 		/* search for vlan filters */
1886 
1887 		if (bnx2x_vf_filters_contain(filters,
1888 					     VFPF_Q_FILTER_VLAN_TAG_VALID)) {
1889 			BNX2X_ERR("VF[%d] attempted to configure vlan but one was already set by Hypervisor. Aborting request\n",
1890 				  vf->abs_vfid);
1891 			rc = -EPERM;
1892 			goto response;
1893 		}
1894 	}
1895 
1896 	/* verify vf_qid */
1897 	if (filters->vf_qid > vf_rxq_count(vf)) {
1898 		rc = -EPERM;
1899 		goto response;
1900 	}
1901 
1902 response:
1903 	return rc;
1904 }
1905 
1906 static void bnx2x_vf_mbx_set_q_filters(struct bnx2x *bp,
1907 				       struct bnx2x_virtf *vf,
1908 				       struct bnx2x_vf_mbx *mbx)
1909 {
1910 	struct vfpf_set_q_filters_tlv *filters = &mbx->msg->req.set_q_filters;
1911 	int rc;
1912 
1913 	rc = bnx2x_filters_validate_mac(bp, vf, filters);
1914 	if (rc)
1915 		goto response;
1916 
1917 	rc = bnx2x_filters_validate_vlan(bp, vf, filters);
1918 	if (rc)
1919 		goto response;
1920 
1921 	DP(BNX2X_MSG_IOV, "VF[%d] Q_FILTERS: queue[%d]\n",
1922 	   vf->abs_vfid,
1923 	   filters->vf_qid);
1924 
1925 	/* print q_filter message */
1926 	bnx2x_vf_mbx_dp_q_filters(bp, BNX2X_MSG_IOV, filters);
1927 
1928 	rc = bnx2x_vf_mbx_qfilters(bp, vf);
1929 response:
1930 	bnx2x_vf_mbx_resp(bp, vf, rc);
1931 }
1932 
1933 static void bnx2x_vf_mbx_teardown_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
1934 				    struct bnx2x_vf_mbx *mbx)
1935 {
1936 	int qid = mbx->msg->req.q_op.vf_qid;
1937 	int rc;
1938 
1939 	DP(BNX2X_MSG_IOV, "VF[%d] Q_TEARDOWN: vf_qid=%d\n",
1940 	   vf->abs_vfid, qid);
1941 
1942 	rc = bnx2x_vf_queue_teardown(bp, vf, qid);
1943 	bnx2x_vf_mbx_resp(bp, vf, rc);
1944 }
1945 
1946 static void bnx2x_vf_mbx_close_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1947 				  struct bnx2x_vf_mbx *mbx)
1948 {
1949 	int rc;
1950 
1951 	DP(BNX2X_MSG_IOV, "VF[%d] VF_CLOSE\n", vf->abs_vfid);
1952 
1953 	rc = bnx2x_vf_close(bp, vf);
1954 	bnx2x_vf_mbx_resp(bp, vf, rc);
1955 }
1956 
1957 static void bnx2x_vf_mbx_release_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1958 				    struct bnx2x_vf_mbx *mbx)
1959 {
1960 	int rc;
1961 
1962 	DP(BNX2X_MSG_IOV, "VF[%d] VF_RELEASE\n", vf->abs_vfid);
1963 
1964 	rc = bnx2x_vf_free(bp, vf);
1965 	bnx2x_vf_mbx_resp(bp, vf, rc);
1966 }
1967 
1968 static void bnx2x_vf_mbx_update_rss(struct bnx2x *bp, struct bnx2x_virtf *vf,
1969 				    struct bnx2x_vf_mbx *mbx)
1970 {
1971 	struct bnx2x_config_rss_params rss;
1972 	struct vfpf_rss_tlv *rss_tlv = &mbx->msg->req.update_rss;
1973 	int rc = 0;
1974 
1975 	if (rss_tlv->ind_table_size != T_ETH_INDIRECTION_TABLE_SIZE ||
1976 	    rss_tlv->rss_key_size != T_ETH_RSS_KEY) {
1977 		BNX2X_ERR("failing rss configuration of vf %d due to size mismatch\n",
1978 			  vf->index);
1979 		rc = -EINVAL;
1980 		goto mbx_resp;
1981 	}
1982 
1983 	memset(&rss, 0, sizeof(struct bnx2x_config_rss_params));
1984 
1985 	/* set vfop params according to rss tlv */
1986 	memcpy(rss.ind_table, rss_tlv->ind_table,
1987 	       T_ETH_INDIRECTION_TABLE_SIZE);
1988 	memcpy(rss.rss_key, rss_tlv->rss_key, sizeof(rss_tlv->rss_key));
1989 	rss.rss_obj = &vf->rss_conf_obj;
1990 	rss.rss_result_mask = rss_tlv->rss_result_mask;
1991 
1992 	/* flags handled individually for backward/forward compatibility */
1993 	rss.rss_flags = 0;
1994 	rss.ramrod_flags = 0;
1995 
1996 	if (rss_tlv->rss_flags & VFPF_RSS_MODE_DISABLED)
1997 		__set_bit(BNX2X_RSS_MODE_DISABLED, &rss.rss_flags);
1998 	if (rss_tlv->rss_flags & VFPF_RSS_MODE_REGULAR)
1999 		__set_bit(BNX2X_RSS_MODE_REGULAR, &rss.rss_flags);
2000 	if (rss_tlv->rss_flags & VFPF_RSS_SET_SRCH)
2001 		__set_bit(BNX2X_RSS_SET_SRCH, &rss.rss_flags);
2002 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4)
2003 		__set_bit(BNX2X_RSS_IPV4, &rss.rss_flags);
2004 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP)
2005 		__set_bit(BNX2X_RSS_IPV4_TCP, &rss.rss_flags);
2006 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP)
2007 		__set_bit(BNX2X_RSS_IPV4_UDP, &rss.rss_flags);
2008 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6)
2009 		__set_bit(BNX2X_RSS_IPV6, &rss.rss_flags);
2010 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP)
2011 		__set_bit(BNX2X_RSS_IPV6_TCP, &rss.rss_flags);
2012 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)
2013 		__set_bit(BNX2X_RSS_IPV6_UDP, &rss.rss_flags);
2014 
2015 	if ((!(rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP) &&
2016 	     rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP) ||
2017 	    (!(rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP) &&
2018 	     rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)) {
2019 		BNX2X_ERR("about to hit a FW assert. aborting...\n");
2020 		rc = -EINVAL;
2021 		goto mbx_resp;
2022 	}
2023 
2024 	rc = bnx2x_vf_rss_update(bp, vf, &rss);
2025 mbx_resp:
2026 	bnx2x_vf_mbx_resp(bp, vf, rc);
2027 }
2028 
2029 static int bnx2x_validate_tpa_params(struct bnx2x *bp,
2030 				       struct vfpf_tpa_tlv *tpa_tlv)
2031 {
2032 	int rc = 0;
2033 
2034 	if (tpa_tlv->tpa_client_info.max_sges_for_packet >
2035 	    U_ETH_MAX_SGES_FOR_PACKET) {
2036 		rc = -EINVAL;
2037 		BNX2X_ERR("TPA update: max_sges received %d, max is %d\n",
2038 			  tpa_tlv->tpa_client_info.max_sges_for_packet,
2039 			  U_ETH_MAX_SGES_FOR_PACKET);
2040 	}
2041 
2042 	if (tpa_tlv->tpa_client_info.max_tpa_queues > MAX_AGG_QS(bp)) {
2043 		rc = -EINVAL;
2044 		BNX2X_ERR("TPA update: max_tpa_queues received %d, max is %d\n",
2045 			  tpa_tlv->tpa_client_info.max_tpa_queues,
2046 			  MAX_AGG_QS(bp));
2047 	}
2048 
2049 	return rc;
2050 }
2051 
2052 static void bnx2x_vf_mbx_update_tpa(struct bnx2x *bp, struct bnx2x_virtf *vf,
2053 				    struct bnx2x_vf_mbx *mbx)
2054 {
2055 	struct bnx2x_queue_update_tpa_params vf_op_params;
2056 	struct vfpf_tpa_tlv *tpa_tlv = &mbx->msg->req.update_tpa;
2057 	int rc = 0;
2058 
2059 	memset(&vf_op_params, 0, sizeof(vf_op_params));
2060 
2061 	if (bnx2x_validate_tpa_params(bp, tpa_tlv))
2062 		goto mbx_resp;
2063 
2064 	vf_op_params.complete_on_both_clients =
2065 		tpa_tlv->tpa_client_info.complete_on_both_clients;
2066 	vf_op_params.dont_verify_thr =
2067 		tpa_tlv->tpa_client_info.dont_verify_thr;
2068 	vf_op_params.max_agg_sz =
2069 		tpa_tlv->tpa_client_info.max_agg_size;
2070 	vf_op_params.max_sges_pkt =
2071 		tpa_tlv->tpa_client_info.max_sges_for_packet;
2072 	vf_op_params.max_tpa_queues =
2073 		tpa_tlv->tpa_client_info.max_tpa_queues;
2074 	vf_op_params.sge_buff_sz =
2075 		tpa_tlv->tpa_client_info.sge_buff_size;
2076 	vf_op_params.sge_pause_thr_high =
2077 		tpa_tlv->tpa_client_info.sge_pause_thr_high;
2078 	vf_op_params.sge_pause_thr_low =
2079 		tpa_tlv->tpa_client_info.sge_pause_thr_low;
2080 	vf_op_params.tpa_mode =
2081 		tpa_tlv->tpa_client_info.tpa_mode;
2082 	vf_op_params.update_ipv4 =
2083 		tpa_tlv->tpa_client_info.update_ipv4;
2084 	vf_op_params.update_ipv6 =
2085 		tpa_tlv->tpa_client_info.update_ipv6;
2086 
2087 	rc = bnx2x_vf_tpa_update(bp, vf, tpa_tlv, &vf_op_params);
2088 
2089 mbx_resp:
2090 	bnx2x_vf_mbx_resp(bp, vf, rc);
2091 }
2092 
2093 /* dispatch request */
2094 static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
2095 				  struct bnx2x_vf_mbx *mbx)
2096 {
2097 	int i;
2098 
2099 	/* check if tlv type is known */
2100 	if (bnx2x_tlv_supported(mbx->first_tlv.tl.type)) {
2101 		/* Lock the per vf op mutex and note the locker's identity.
2102 		 * The unlock will take place in mbx response.
2103 		 */
2104 		bnx2x_lock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
2105 
2106 		/* switch on the opcode */
2107 		switch (mbx->first_tlv.tl.type) {
2108 		case CHANNEL_TLV_ACQUIRE:
2109 			bnx2x_vf_mbx_acquire(bp, vf, mbx);
2110 			return;
2111 		case CHANNEL_TLV_INIT:
2112 			bnx2x_vf_mbx_init_vf(bp, vf, mbx);
2113 			return;
2114 		case CHANNEL_TLV_SETUP_Q:
2115 			bnx2x_vf_mbx_setup_q(bp, vf, mbx);
2116 			return;
2117 		case CHANNEL_TLV_SET_Q_FILTERS:
2118 			bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
2119 			return;
2120 		case CHANNEL_TLV_TEARDOWN_Q:
2121 			bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
2122 			return;
2123 		case CHANNEL_TLV_CLOSE:
2124 			bnx2x_vf_mbx_close_vf(bp, vf, mbx);
2125 			return;
2126 		case CHANNEL_TLV_RELEASE:
2127 			bnx2x_vf_mbx_release_vf(bp, vf, mbx);
2128 			return;
2129 		case CHANNEL_TLV_UPDATE_RSS:
2130 			bnx2x_vf_mbx_update_rss(bp, vf, mbx);
2131 			return;
2132 		case CHANNEL_TLV_UPDATE_TPA:
2133 			bnx2x_vf_mbx_update_tpa(bp, vf, mbx);
2134 			return;
2135 		}
2136 
2137 	} else {
2138 		/* unknown TLV - this may belong to a VF driver from the future
2139 		 * - a version written after this PF driver was written, which
2140 		 * supports features unknown as of yet. Too bad since we don't
2141 		 * support them. Or this may be because someone wrote a crappy
2142 		 * VF driver and is sending garbage over the channel.
2143 		 */
2144 		BNX2X_ERR("unknown TLV. type %d length %d vf->state was %d. first 20 bytes of mailbox buffer:\n",
2145 			  mbx->first_tlv.tl.type, mbx->first_tlv.tl.length,
2146 			  vf->state);
2147 		for (i = 0; i < 20; i++)
2148 			DP_CONT(BNX2X_MSG_IOV, "%x ",
2149 				mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
2150 	}
2151 
2152 	/* can we respond to VF (do we have an address for it?) */
2153 	if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
2154 		/* notify the VF that we do not support this request */
2155 		bnx2x_vf_mbx_resp(bp, vf, PFVF_STATUS_NOT_SUPPORTED);
2156 	} else {
2157 		/* can't send a response since this VF is unknown to us
2158 		 * just ack the FW to release the mailbox and unlock
2159 		 * the channel.
2160 		 */
2161 		storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
2162 		/* Firmware ack should be written before unlocking channel */
2163 		mmiowb();
2164 		bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
2165 	}
2166 }
2167 
2168 void bnx2x_vf_mbx_schedule(struct bnx2x *bp,
2169 			   struct vf_pf_event_data *vfpf_event)
2170 {
2171 	u8 vf_idx;
2172 
2173 	DP(BNX2X_MSG_IOV,
2174 	   "vf pf event received: vfid %d, address_hi %x, address lo %x",
2175 	   vfpf_event->vf_id, vfpf_event->msg_addr_hi, vfpf_event->msg_addr_lo);
2176 	/* Sanity checks consider removing later */
2177 
2178 	/* check if the vf_id is valid */
2179 	if (vfpf_event->vf_id - BP_VFDB(bp)->sriov.first_vf_in_pf >
2180 	    BNX2X_NR_VIRTFN(bp)) {
2181 		BNX2X_ERR("Illegal vf_id %d max allowed: %d\n",
2182 			  vfpf_event->vf_id, BNX2X_NR_VIRTFN(bp));
2183 		return;
2184 	}
2185 
2186 	vf_idx = bnx2x_vf_idx_by_abs_fid(bp, vfpf_event->vf_id);
2187 
2188 	/* Update VFDB with current message and schedule its handling */
2189 	mutex_lock(&BP_VFDB(bp)->event_mutex);
2190 	BP_VF_MBX(bp, vf_idx)->vf_addr_hi =
2191 		le32_to_cpu(vfpf_event->msg_addr_hi);
2192 	BP_VF_MBX(bp, vf_idx)->vf_addr_lo =
2193 		le32_to_cpu(vfpf_event->msg_addr_lo);
2194 	BP_VFDB(bp)->event_occur |= (1ULL << vf_idx);
2195 	mutex_unlock(&BP_VFDB(bp)->event_mutex);
2196 
2197 	bnx2x_schedule_iov_task(bp, BNX2X_IOV_HANDLE_VF_MSG);
2198 }
2199 
2200 /* handle new vf-pf messages */
2201 void bnx2x_vf_mbx(struct bnx2x *bp)
2202 {
2203 	struct bnx2x_vfdb *vfdb = BP_VFDB(bp);
2204 	u64 events;
2205 	u8 vf_idx;
2206 	int rc;
2207 
2208 	if (!vfdb)
2209 		return;
2210 
2211 	mutex_lock(&vfdb->event_mutex);
2212 	events = vfdb->event_occur;
2213 	vfdb->event_occur = 0;
2214 	mutex_unlock(&vfdb->event_mutex);
2215 
2216 	for_each_vf(bp, vf_idx) {
2217 		struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf_idx);
2218 		struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
2219 
2220 		/* Handle VFs which have pending events */
2221 		if (!(events & (1ULL << vf_idx)))
2222 			continue;
2223 
2224 		DP(BNX2X_MSG_IOV,
2225 		   "Handling vf pf event vfid %d, address: [%x:%x], resp_offset 0x%x\n",
2226 		   vf_idx, mbx->vf_addr_hi, mbx->vf_addr_lo,
2227 		   mbx->first_tlv.resp_msg_offset);
2228 
2229 		/* dmae to get the VF request */
2230 		rc = bnx2x_copy32_vf_dmae(bp, true, mbx->msg_mapping,
2231 					  vf->abs_vfid, mbx->vf_addr_hi,
2232 					  mbx->vf_addr_lo,
2233 					  sizeof(union vfpf_tlvs)/4);
2234 		if (rc) {
2235 			BNX2X_ERR("Failed to copy request VF %d\n",
2236 				  vf->abs_vfid);
2237 			bnx2x_vf_release(bp, vf);
2238 			return;
2239 		}
2240 
2241 		/* process the VF message header */
2242 		mbx->first_tlv = mbx->msg->req.first_tlv;
2243 
2244 		/* Clean response buffer to refrain from falsely
2245 		 * seeing chains.
2246 		 */
2247 		memset(&mbx->msg->resp, 0, sizeof(union pfvf_tlvs));
2248 
2249 		/* dispatch the request (will prepare the response) */
2250 		bnx2x_vf_mbx_request(bp, vf, mbx);
2251 	}
2252 }
2253 
2254 void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
2255 				bool support_long)
2256 {
2257 	/* Older VFs contain a bug where they can't check CRC for bulletin
2258 	 * boards of length greater than legacy size.
2259 	 */
2260 	bulletin->length = support_long ? BULLETIN_CONTENT_SIZE :
2261 					  BULLETIN_CONTENT_LEGACY_SIZE;
2262 	bulletin->crc = bnx2x_crc_vf_bulletin(bulletin);
2263 }
2264 
2265 /* propagate local bulletin board to vf */
2266 int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf)
2267 {
2268 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf);
2269 	dma_addr_t pf_addr = BP_VF_BULLETIN_DMA(bp)->mapping +
2270 		vf * BULLETIN_CONTENT_SIZE;
2271 	dma_addr_t vf_addr = bnx2x_vf(bp, vf, bulletin_map);
2272 	int rc;
2273 
2274 	/* can only update vf after init took place */
2275 	if (bnx2x_vf(bp, vf, state) != VF_ENABLED &&
2276 	    bnx2x_vf(bp, vf, state) != VF_ACQUIRED)
2277 		return 0;
2278 
2279 	/* increment bulletin board version and compute crc */
2280 	bulletin->version++;
2281 	bnx2x_vf_bulletin_finalize(bulletin,
2282 				   (bnx2x_vf(bp, vf, cfg_flags) &
2283 				    VF_CFG_EXT_BULLETIN) ? true : false);
2284 
2285 	/* propagate bulletin board via dmae to vm memory */
2286 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr,
2287 				  bnx2x_vf(bp, vf, abs_vfid), U64_HI(vf_addr),
2288 				  U64_LO(vf_addr), bulletin->length / 4);
2289 	return rc;
2290 }
2291