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 */
bnx2x_add_tlv(struct bnx2x * bp,void * tlvs_list,u16 offset,u16 type,u16 length)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 */
bnx2x_vfpf_prep(struct bnx2x * bp,struct vfpf_first_tlv * first_tlv,u16 type,u16 length)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 */
bnx2x_vfpf_finalize(struct bnx2x * bp,struct vfpf_first_tlv * first_tlv)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 */
bnx2x_search_tlv_list(struct bnx2x * bp,void * tlvs_list,enum channel_tlvs req_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 */
bnx2x_dp_tlv_list(struct bnx2x * bp,void * tlvs_list)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 */
bnx2x_tlv_supported(u16 tlvtype)124 bool bnx2x_tlv_supported(u16 tlvtype)
125 {
126 	return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
127 }
128 
bnx2x_pfvf_status_codes(int rc)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 
bnx2x_send_msg2pf(struct bnx2x * bp,u8 * done,dma_addr_t msg_mapping)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_relaxed(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 
bnx2x_get_vf_id(struct bnx2x * bp,u32 * vf_id)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 
bnx2x_vfpf_acquire(struct bnx2x * bp,u8 tx_count,u8 rx_count)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 	strscpy(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 		eth_hw_addr_set(bp->dev,
388 				bp->acquire_resp.resc.current_mac_addr);
389 
390 out:
391 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
392 	return rc;
393 }
394 
bnx2x_vfpf_release(struct bnx2x * bp)395 int bnx2x_vfpf_release(struct bnx2x *bp)
396 {
397 	struct vfpf_release_tlv *req = &bp->vf2pf_mbox->req.release;
398 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
399 	u32 rc, vf_id;
400 
401 	/* clear mailbox and prep first tlv */
402 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_RELEASE, sizeof(*req));
403 
404 	if (bnx2x_get_vf_id(bp, &vf_id)) {
405 		rc = -EAGAIN;
406 		goto out;
407 	}
408 
409 	req->vf_id = vf_id;
410 
411 	/* add list termination tlv */
412 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
413 		      sizeof(struct channel_list_end_tlv));
414 
415 	/* output tlvs list */
416 	bnx2x_dp_tlv_list(bp, req);
417 
418 	/* send release request */
419 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
420 
421 	if (rc)
422 		/* PF timeout */
423 		goto out;
424 
425 	if (resp->hdr.status == PFVF_STATUS_SUCCESS) {
426 		/* PF released us */
427 		DP(BNX2X_MSG_SP, "vf released\n");
428 	} else {
429 		/* PF reports error */
430 		BNX2X_ERR("PF failed our release request - are we out of sync? Response status: %d\n",
431 			  resp->hdr.status);
432 		rc = -EAGAIN;
433 		goto out;
434 	}
435 out:
436 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
437 
438 	return rc;
439 }
440 
441 /* Tell PF about SB addresses */
bnx2x_vfpf_init(struct bnx2x * bp)442 int bnx2x_vfpf_init(struct bnx2x *bp)
443 {
444 	struct vfpf_init_tlv *req = &bp->vf2pf_mbox->req.init;
445 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
446 	int rc, i;
447 
448 	/* clear mailbox and prep first tlv */
449 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_INIT, sizeof(*req));
450 
451 	/* status blocks */
452 	for_each_eth_queue(bp, i)
453 		req->sb_addr[i] = (dma_addr_t)bnx2x_fp(bp, i,
454 						       status_blk_mapping);
455 
456 	/* statistics - requests only supports single queue for now */
457 	req->stats_addr = bp->fw_stats_data_mapping +
458 			  offsetof(struct bnx2x_fw_stats_data, queue_stats);
459 
460 	req->stats_stride = sizeof(struct per_queue_stats);
461 
462 	/* add list termination tlv */
463 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
464 		      sizeof(struct channel_list_end_tlv));
465 
466 	/* output tlvs list */
467 	bnx2x_dp_tlv_list(bp, req);
468 
469 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
470 	if (rc)
471 		goto out;
472 
473 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
474 		BNX2X_ERR("INIT VF failed: %d. Breaking...\n",
475 			  resp->hdr.status);
476 		rc = -EAGAIN;
477 		goto out;
478 	}
479 
480 	DP(BNX2X_MSG_SP, "INIT VF Succeeded\n");
481 out:
482 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
483 
484 	return rc;
485 }
486 
487 /* CLOSE VF - opposite to INIT_VF */
bnx2x_vfpf_close_vf(struct bnx2x * bp)488 void bnx2x_vfpf_close_vf(struct bnx2x *bp)
489 {
490 	struct vfpf_close_tlv *req = &bp->vf2pf_mbox->req.close;
491 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
492 	int i, rc;
493 	u32 vf_id;
494 
495 	/* If we haven't got a valid VF id, there is no sense to
496 	 * continue with sending messages
497 	 */
498 	if (bnx2x_get_vf_id(bp, &vf_id))
499 		goto free_irq;
500 
501 	/* Close the queues */
502 	for_each_queue(bp, i)
503 		bnx2x_vfpf_teardown_queue(bp, i);
504 
505 	/* remove mac */
506 	bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index, false);
507 
508 	/* clear mailbox and prep first tlv */
509 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_CLOSE, sizeof(*req));
510 
511 	req->vf_id = vf_id;
512 
513 	/* add list termination tlv */
514 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
515 		      sizeof(struct channel_list_end_tlv));
516 
517 	/* output tlvs list */
518 	bnx2x_dp_tlv_list(bp, req);
519 
520 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
521 
522 	if (rc)
523 		BNX2X_ERR("Sending CLOSE failed. rc was: %d\n", rc);
524 
525 	else if (resp->hdr.status != PFVF_STATUS_SUCCESS)
526 		BNX2X_ERR("Sending CLOSE failed: pf response was %d\n",
527 			  resp->hdr.status);
528 
529 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
530 
531 free_irq:
532 	/* Disable HW interrupts, NAPI */
533 	bnx2x_netif_stop(bp, 0);
534 	/* Delete all NAPI objects */
535 	bnx2x_del_all_napi(bp);
536 
537 	/* Release IRQs */
538 	bnx2x_free_irq(bp);
539 }
540 
bnx2x_leading_vfq_init(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_queue * q)541 static void bnx2x_leading_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
542 				   struct bnx2x_vf_queue *q)
543 {
544 	u8 cl_id = vfq_cl_id(vf, q);
545 	u8 func_id = FW_VF_HANDLE(vf->abs_vfid);
546 
547 	/* mac */
548 	bnx2x_init_mac_obj(bp, &q->mac_obj,
549 			   cl_id, q->cid, func_id,
550 			   bnx2x_vf_sp(bp, vf, mac_rdata),
551 			   bnx2x_vf_sp_map(bp, vf, mac_rdata),
552 			   BNX2X_FILTER_MAC_PENDING,
553 			   &vf->filter_state,
554 			   BNX2X_OBJ_TYPE_RX_TX,
555 			   &vf->vf_macs_pool);
556 	/* vlan */
557 	bnx2x_init_vlan_obj(bp, &q->vlan_obj,
558 			    cl_id, q->cid, func_id,
559 			    bnx2x_vf_sp(bp, vf, vlan_rdata),
560 			    bnx2x_vf_sp_map(bp, vf, vlan_rdata),
561 			    BNX2X_FILTER_VLAN_PENDING,
562 			    &vf->filter_state,
563 			    BNX2X_OBJ_TYPE_RX_TX,
564 			    &vf->vf_vlans_pool);
565 	/* vlan-mac */
566 	bnx2x_init_vlan_mac_obj(bp, &q->vlan_mac_obj,
567 				cl_id, q->cid, func_id,
568 				bnx2x_vf_sp(bp, vf, vlan_mac_rdata),
569 				bnx2x_vf_sp_map(bp, vf, vlan_mac_rdata),
570 				BNX2X_FILTER_VLAN_MAC_PENDING,
571 				&vf->filter_state,
572 				BNX2X_OBJ_TYPE_RX_TX,
573 				&vf->vf_macs_pool,
574 				&vf->vf_vlans_pool);
575 	/* mcast */
576 	bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id,
577 			     q->cid, func_id, func_id,
578 			     bnx2x_vf_sp(bp, vf, mcast_rdata),
579 			     bnx2x_vf_sp_map(bp, vf, mcast_rdata),
580 			     BNX2X_FILTER_MCAST_PENDING,
581 			     &vf->filter_state,
582 			     BNX2X_OBJ_TYPE_RX_TX);
583 
584 	/* rss */
585 	bnx2x_init_rss_config_obj(bp, &vf->rss_conf_obj, cl_id, q->cid,
586 				  func_id, func_id,
587 				  bnx2x_vf_sp(bp, vf, rss_rdata),
588 				  bnx2x_vf_sp_map(bp, vf, rss_rdata),
589 				  BNX2X_FILTER_RSS_CONF_PENDING,
590 				  &vf->filter_state,
591 				  BNX2X_OBJ_TYPE_RX_TX);
592 
593 	vf->leading_rss = cl_id;
594 	q->is_leading = true;
595 	q->sp_initialized = true;
596 }
597 
598 /* ask the pf to open a queue for the vf */
bnx2x_vfpf_setup_q(struct bnx2x * bp,struct bnx2x_fastpath * fp,bool is_leading)599 int bnx2x_vfpf_setup_q(struct bnx2x *bp, struct bnx2x_fastpath *fp,
600 		       bool is_leading)
601 {
602 	struct vfpf_setup_q_tlv *req = &bp->vf2pf_mbox->req.setup_q;
603 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
604 	u8 fp_idx = fp->index;
605 	u16 tpa_agg_size = 0, flags = 0;
606 	int rc;
607 
608 	/* clear mailbox and prep first tlv */
609 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SETUP_Q, sizeof(*req));
610 
611 	/* select tpa mode to request */
612 	if (fp->mode != TPA_MODE_DISABLED) {
613 		flags |= VFPF_QUEUE_FLG_TPA;
614 		flags |= VFPF_QUEUE_FLG_TPA_IPV6;
615 		if (fp->mode == TPA_MODE_GRO)
616 			flags |= VFPF_QUEUE_FLG_TPA_GRO;
617 		tpa_agg_size = TPA_AGG_SIZE;
618 	}
619 
620 	if (is_leading)
621 		flags |= VFPF_QUEUE_FLG_LEADING_RSS;
622 
623 	/* calculate queue flags */
624 	flags |= VFPF_QUEUE_FLG_STATS;
625 	flags |= VFPF_QUEUE_FLG_CACHE_ALIGN;
626 	flags |= VFPF_QUEUE_FLG_VLAN;
627 
628 	/* Common */
629 	req->vf_qid = fp_idx;
630 	req->param_valid = VFPF_RXQ_VALID | VFPF_TXQ_VALID;
631 
632 	/* Rx */
633 	req->rxq.rcq_addr = fp->rx_comp_mapping;
634 	req->rxq.rcq_np_addr = fp->rx_comp_mapping + BCM_PAGE_SIZE;
635 	req->rxq.rxq_addr = fp->rx_desc_mapping;
636 	req->rxq.sge_addr = fp->rx_sge_mapping;
637 	req->rxq.vf_sb = fp_idx;
638 	req->rxq.sb_index = HC_INDEX_ETH_RX_CQ_CONS;
639 	req->rxq.hc_rate = bp->rx_ticks ? 1000000/bp->rx_ticks : 0;
640 	req->rxq.mtu = bp->dev->mtu;
641 	req->rxq.buf_sz = fp->rx_buf_size;
642 	req->rxq.sge_buf_sz = BCM_PAGE_SIZE * PAGES_PER_SGE;
643 	req->rxq.tpa_agg_sz = tpa_agg_size;
644 	req->rxq.max_sge_pkt = SGE_PAGE_ALIGN(bp->dev->mtu) >> SGE_PAGE_SHIFT;
645 	req->rxq.max_sge_pkt = ((req->rxq.max_sge_pkt + PAGES_PER_SGE - 1) &
646 			  (~(PAGES_PER_SGE-1))) >> PAGES_PER_SGE_SHIFT;
647 	req->rxq.flags = flags;
648 	req->rxq.drop_flags = 0;
649 	req->rxq.cache_line_log = BNX2X_RX_ALIGN_SHIFT;
650 	req->rxq.stat_id = -1; /* No stats at the moment */
651 
652 	/* Tx */
653 	req->txq.txq_addr = fp->txdata_ptr[FIRST_TX_COS_INDEX]->tx_desc_mapping;
654 	req->txq.vf_sb = fp_idx;
655 	req->txq.sb_index = HC_INDEX_ETH_TX_CQ_CONS_COS0;
656 	req->txq.hc_rate = bp->tx_ticks ? 1000000/bp->tx_ticks : 0;
657 	req->txq.flags = flags;
658 	req->txq.traffic_type = LLFC_TRAFFIC_TYPE_NW;
659 
660 	/* add list termination tlv */
661 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
662 		      sizeof(struct channel_list_end_tlv));
663 
664 	/* output tlvs list */
665 	bnx2x_dp_tlv_list(bp, req);
666 
667 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
668 	if (rc)
669 		BNX2X_ERR("Sending SETUP_Q message for queue[%d] failed!\n",
670 			  fp_idx);
671 
672 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
673 		BNX2X_ERR("Status of SETUP_Q for queue[%d] is %d\n",
674 			  fp_idx, resp->hdr.status);
675 		rc = -EINVAL;
676 	}
677 
678 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
679 
680 	return rc;
681 }
682 
bnx2x_vfpf_teardown_queue(struct bnx2x * bp,int qidx)683 static int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx)
684 {
685 	struct vfpf_q_op_tlv *req = &bp->vf2pf_mbox->req.q_op;
686 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
687 	int rc;
688 
689 	/* clear mailbox and prep first tlv */
690 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_TEARDOWN_Q,
691 			sizeof(*req));
692 
693 	req->vf_qid = qidx;
694 
695 	/* add list termination tlv */
696 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
697 		      sizeof(struct channel_list_end_tlv));
698 
699 	/* output tlvs list */
700 	bnx2x_dp_tlv_list(bp, req);
701 
702 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
703 
704 	if (rc) {
705 		BNX2X_ERR("Sending TEARDOWN for queue %d failed: %d\n", qidx,
706 			  rc);
707 		goto out;
708 	}
709 
710 	/* PF failed the transaction */
711 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
712 		BNX2X_ERR("TEARDOWN for queue %d failed: %d\n", qidx,
713 			  resp->hdr.status);
714 		rc = -EINVAL;
715 	}
716 
717 out:
718 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
719 
720 	return rc;
721 }
722 
723 /* request pf to add a mac for the vf */
bnx2x_vfpf_config_mac(struct bnx2x * bp,const u8 * addr,u8 vf_qid,bool set)724 int bnx2x_vfpf_config_mac(struct bnx2x *bp, const u8 *addr, u8 vf_qid, bool set)
725 {
726 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
727 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
728 	struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content;
729 	int rc = 0;
730 
731 	/* clear mailbox and prep first tlv */
732 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
733 			sizeof(*req));
734 
735 	req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
736 	req->vf_qid = vf_qid;
737 	req->n_mac_vlan_filters = 1;
738 
739 	req->filters[0].flags = VFPF_Q_FILTER_DEST_MAC_VALID;
740 	if (set)
741 		req->filters[0].flags |= VFPF_Q_FILTER_SET;
742 
743 	/* sample bulletin board for new mac */
744 	bnx2x_sample_bulletin(bp);
745 
746 	/* copy mac from device to request */
747 	memcpy(req->filters[0].mac, addr, ETH_ALEN);
748 
749 	/* add list termination tlv */
750 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
751 		      sizeof(struct channel_list_end_tlv));
752 
753 	/* output tlvs list */
754 	bnx2x_dp_tlv_list(bp, req);
755 
756 	/* send message to pf */
757 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
758 	if (rc) {
759 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
760 		goto out;
761 	}
762 
763 	/* failure may mean PF was configured with a new mac for us */
764 	while (resp->hdr.status == PFVF_STATUS_FAILURE) {
765 		DP(BNX2X_MSG_IOV,
766 		   "vfpf SET MAC failed. Check bulletin board for new posts\n");
767 
768 		/* copy mac from bulletin to device */
769 		eth_hw_addr_set(bp->dev, bulletin.mac);
770 
771 		/* check if bulletin board was updated */
772 		if (bnx2x_sample_bulletin(bp) == PFVF_BULLETIN_UPDATED) {
773 			/* copy mac from device to request */
774 			memcpy(req->filters[0].mac, bp->dev->dev_addr,
775 			       ETH_ALEN);
776 
777 			/* send message to pf */
778 			rc = bnx2x_send_msg2pf(bp, &resp->hdr.status,
779 					       bp->vf2pf_mbox_mapping);
780 		} else {
781 			/* no new info in bulletin */
782 			break;
783 		}
784 	}
785 
786 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
787 		BNX2X_ERR("vfpf SET MAC failed: %d\n", resp->hdr.status);
788 		rc = -EINVAL;
789 	}
790 out:
791 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
792 
793 	return rc;
794 }
795 
796 /* request pf to config rss table for vf queues*/
bnx2x_vfpf_config_rss(struct bnx2x * bp,struct bnx2x_config_rss_params * params)797 int bnx2x_vfpf_config_rss(struct bnx2x *bp,
798 			  struct bnx2x_config_rss_params *params)
799 {
800 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
801 	struct vfpf_rss_tlv *req = &bp->vf2pf_mbox->req.update_rss;
802 	int rc = 0;
803 
804 	/* clear mailbox and prep first tlv */
805 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_UPDATE_RSS,
806 			sizeof(*req));
807 
808 	/* add list termination tlv */
809 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
810 		      sizeof(struct channel_list_end_tlv));
811 
812 	memcpy(req->ind_table, params->ind_table, T_ETH_INDIRECTION_TABLE_SIZE);
813 	memcpy(req->rss_key, params->rss_key, sizeof(params->rss_key));
814 	req->ind_table_size = T_ETH_INDIRECTION_TABLE_SIZE;
815 	req->rss_key_size = T_ETH_RSS_KEY;
816 	req->rss_result_mask = params->rss_result_mask;
817 
818 	/* flags handled individually for backward/forward compatibility */
819 	if (params->rss_flags & (1 << BNX2X_RSS_MODE_DISABLED))
820 		req->rss_flags |= VFPF_RSS_MODE_DISABLED;
821 	if (params->rss_flags & (1 << BNX2X_RSS_MODE_REGULAR))
822 		req->rss_flags |= VFPF_RSS_MODE_REGULAR;
823 	if (params->rss_flags & (1 << BNX2X_RSS_SET_SRCH))
824 		req->rss_flags |= VFPF_RSS_SET_SRCH;
825 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4))
826 		req->rss_flags |= VFPF_RSS_IPV4;
827 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4_TCP))
828 		req->rss_flags |= VFPF_RSS_IPV4_TCP;
829 	if (params->rss_flags & (1 << BNX2X_RSS_IPV4_UDP))
830 		req->rss_flags |= VFPF_RSS_IPV4_UDP;
831 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6))
832 		req->rss_flags |= VFPF_RSS_IPV6;
833 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6_TCP))
834 		req->rss_flags |= VFPF_RSS_IPV6_TCP;
835 	if (params->rss_flags & (1 << BNX2X_RSS_IPV6_UDP))
836 		req->rss_flags |= VFPF_RSS_IPV6_UDP;
837 
838 	DP(BNX2X_MSG_IOV, "rss flags %x\n", req->rss_flags);
839 
840 	/* output tlvs list */
841 	bnx2x_dp_tlv_list(bp, req);
842 
843 	/* send message to pf */
844 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
845 	if (rc) {
846 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
847 		goto out;
848 	}
849 
850 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
851 		/* Since older drivers don't support this feature (and VF has
852 		 * no way of knowing other than failing this), don't propagate
853 		 * an error in this case.
854 		 */
855 		DP(BNX2X_MSG_IOV,
856 		   "Failed to send rss message to PF over VF-PF channel [%d]\n",
857 		   resp->hdr.status);
858 	}
859 out:
860 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
861 
862 	return rc;
863 }
864 
bnx2x_vfpf_set_mcast(struct net_device * dev)865 int bnx2x_vfpf_set_mcast(struct net_device *dev)
866 {
867 	struct bnx2x *bp = netdev_priv(dev);
868 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
869 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
870 	int rc = 0, i = 0;
871 	struct netdev_hw_addr *ha;
872 
873 	if (bp->state != BNX2X_STATE_OPEN) {
874 		DP(NETIF_MSG_IFUP, "state is %x, returning\n", bp->state);
875 		return -EINVAL;
876 	}
877 
878 	/* clear mailbox and prep first tlv */
879 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
880 			sizeof(*req));
881 
882 	/* Get Rx mode requested */
883 	DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags);
884 
885 	/* We support PFVF_MAX_MULTICAST_PER_VF mcast addresses tops */
886 	if (netdev_mc_count(dev) > PFVF_MAX_MULTICAST_PER_VF) {
887 		DP(NETIF_MSG_IFUP,
888 		   "VF supports not more than %d multicast MAC addresses\n",
889 		   PFVF_MAX_MULTICAST_PER_VF);
890 		rc = -EINVAL;
891 		goto out;
892 	}
893 
894 	netdev_for_each_mc_addr(ha, dev) {
895 		DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n",
896 		   bnx2x_mc_addr(ha));
897 		memcpy(req->multicast[i], bnx2x_mc_addr(ha), ETH_ALEN);
898 		i++;
899 	}
900 
901 	req->n_multicast = i;
902 	req->flags |= VFPF_SET_Q_FILTERS_MULTICAST_CHANGED;
903 	req->vf_qid = 0;
904 
905 	/* add list termination tlv */
906 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
907 		      sizeof(struct channel_list_end_tlv));
908 
909 	/* output tlvs list */
910 	bnx2x_dp_tlv_list(bp, req);
911 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
912 	if (rc) {
913 		BNX2X_ERR("Sending a message failed: %d\n", rc);
914 		goto out;
915 	}
916 
917 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
918 		BNX2X_ERR("Set Rx mode/multicast failed: %d\n",
919 			  resp->hdr.status);
920 		rc = -EINVAL;
921 	}
922 out:
923 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
924 
925 	return rc;
926 }
927 
928 /* request pf to add a vlan for the vf */
bnx2x_vfpf_update_vlan(struct bnx2x * bp,u16 vid,u8 vf_qid,bool add)929 int bnx2x_vfpf_update_vlan(struct bnx2x *bp, u16 vid, u8 vf_qid, bool add)
930 {
931 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
932 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
933 	int rc = 0;
934 
935 	if (!(bp->acquire_resp.pfdev_info.pf_cap & PFVF_CAP_VLAN_FILTER)) {
936 		DP(BNX2X_MSG_IOV, "HV does not support vlan filtering\n");
937 		return 0;
938 	}
939 
940 	/* clear mailbox and prep first tlv */
941 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
942 			sizeof(*req));
943 
944 	req->flags = VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED;
945 	req->vf_qid = vf_qid;
946 	req->n_mac_vlan_filters = 1;
947 
948 	req->filters[0].flags = VFPF_Q_FILTER_VLAN_TAG_VALID;
949 
950 	if (add)
951 		req->filters[0].flags |= VFPF_Q_FILTER_SET;
952 
953 	/* sample bulletin board for hypervisor vlan */
954 	bnx2x_sample_bulletin(bp);
955 
956 	if (bp->shadow_bulletin.content.valid_bitmap & 1 << VLAN_VALID) {
957 		BNX2X_ERR("Hypervisor will decline the request, avoiding\n");
958 		rc = -EINVAL;
959 		goto out;
960 	}
961 
962 	req->filters[0].vlan_tag = vid;
963 
964 	/* add list termination tlv */
965 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
966 		      sizeof(struct channel_list_end_tlv));
967 
968 	/* output tlvs list */
969 	bnx2x_dp_tlv_list(bp, req);
970 
971 	/* send message to pf */
972 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
973 	if (rc) {
974 		BNX2X_ERR("failed to send message to pf. rc was %d\n", rc);
975 		goto out;
976 	}
977 
978 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
979 		BNX2X_ERR("vfpf %s VLAN %d failed\n", add ? "add" : "del",
980 			  vid);
981 		rc = -EINVAL;
982 	}
983 out:
984 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
985 
986 	return rc;
987 }
988 
bnx2x_vfpf_storm_rx_mode(struct bnx2x * bp)989 int bnx2x_vfpf_storm_rx_mode(struct bnx2x *bp)
990 {
991 	int mode = bp->rx_mode;
992 	struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters;
993 	struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp;
994 	int rc;
995 
996 	/* clear mailbox and prep first tlv */
997 	bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_SET_Q_FILTERS,
998 			sizeof(*req));
999 
1000 	DP(NETIF_MSG_IFUP, "Rx mode is %d\n", mode);
1001 
1002 	/* Ignore everything accept MODE_NONE */
1003 	if (mode  == BNX2X_RX_MODE_NONE) {
1004 		req->rx_mask = VFPF_RX_MASK_ACCEPT_NONE;
1005 	} else {
1006 		/* Current PF driver will not look at the specific flags,
1007 		 * but they are required when working with older drivers on hv.
1008 		 */
1009 		req->rx_mask = VFPF_RX_MASK_ACCEPT_MATCHED_MULTICAST;
1010 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST;
1011 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_BROADCAST;
1012 		if (mode == BNX2X_RX_MODE_PROMISC)
1013 			req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
1014 	}
1015 
1016 	if (bp->accept_any_vlan)
1017 		req->rx_mask |= VFPF_RX_MASK_ACCEPT_ANY_VLAN;
1018 
1019 	req->flags |= VFPF_SET_Q_FILTERS_RX_MASK_CHANGED;
1020 	req->vf_qid = 0;
1021 
1022 	/* add list termination tlv */
1023 	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
1024 		      sizeof(struct channel_list_end_tlv));
1025 
1026 	/* output tlvs list */
1027 	bnx2x_dp_tlv_list(bp, req);
1028 
1029 	rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping);
1030 	if (rc)
1031 		BNX2X_ERR("Sending a message failed: %d\n", rc);
1032 
1033 	if (resp->hdr.status != PFVF_STATUS_SUCCESS) {
1034 		BNX2X_ERR("Set Rx mode failed: %d\n", resp->hdr.status);
1035 		rc = -EINVAL;
1036 	}
1037 
1038 	bnx2x_vfpf_finalize(bp, &req->first_tlv);
1039 
1040 	return rc;
1041 }
1042 
1043 /* General service functions */
storm_memset_vf_mbx_ack(struct bnx2x * bp,u16 abs_fid)1044 static void storm_memset_vf_mbx_ack(struct bnx2x *bp, u16 abs_fid)
1045 {
1046 	u32 addr = BAR_CSTRORM_INTMEM +
1047 		   CSTORM_VF_PF_CHANNEL_STATE_OFFSET(abs_fid);
1048 
1049 	REG_WR8(bp, addr, VF_PF_CHANNEL_STATE_READY);
1050 }
1051 
storm_memset_vf_mbx_valid(struct bnx2x * bp,u16 abs_fid)1052 static void storm_memset_vf_mbx_valid(struct bnx2x *bp, u16 abs_fid)
1053 {
1054 	u32 addr = BAR_CSTRORM_INTMEM +
1055 		   CSTORM_VF_PF_CHANNEL_VALID_OFFSET(abs_fid);
1056 
1057 	REG_WR8(bp, addr, 1);
1058 }
1059 
1060 /* enable vf_pf mailbox (aka vf-pf-channel) */
bnx2x_vf_enable_mbx(struct bnx2x * bp,u8 abs_vfid)1061 void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid)
1062 {
1063 	bnx2x_vf_flr_clnup_epilog(bp, abs_vfid);
1064 
1065 	/* enable the mailbox in the FW */
1066 	storm_memset_vf_mbx_ack(bp, abs_vfid);
1067 	storm_memset_vf_mbx_valid(bp, abs_vfid);
1068 
1069 	/* enable the VF access to the mailbox */
1070 	bnx2x_vf_enable_access(bp, abs_vfid);
1071 }
1072 
1073 /* this works only on !E1h */
bnx2x_copy32_vf_dmae(struct bnx2x * bp,u8 from_vf,dma_addr_t pf_addr,u8 vfid,u32 vf_addr_hi,u32 vf_addr_lo,u32 len32)1074 static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf,
1075 				dma_addr_t pf_addr, u8 vfid, u32 vf_addr_hi,
1076 				u32 vf_addr_lo, u32 len32)
1077 {
1078 	struct dmae_command dmae;
1079 
1080 	if (CHIP_IS_E1x(bp)) {
1081 		BNX2X_ERR("Chip revision does not support VFs\n");
1082 		return DMAE_NOT_RDY;
1083 	}
1084 
1085 	if (!bp->dmae_ready) {
1086 		BNX2X_ERR("DMAE is not ready, can not copy\n");
1087 		return DMAE_NOT_RDY;
1088 	}
1089 
1090 	/* set opcode and fixed command fields */
1091 	bnx2x_prep_dmae_with_comp(bp, &dmae, DMAE_SRC_PCI, DMAE_DST_PCI);
1092 
1093 	if (from_vf) {
1094 		dmae.opcode_iov = (vfid << DMAE_COMMAND_SRC_VFID_SHIFT) |
1095 			(DMAE_SRC_VF << DMAE_COMMAND_SRC_VFPF_SHIFT) |
1096 			(DMAE_DST_PF << DMAE_COMMAND_DST_VFPF_SHIFT);
1097 
1098 		dmae.opcode |= (DMAE_C_DST << DMAE_COMMAND_C_FUNC_SHIFT);
1099 
1100 		dmae.src_addr_lo = vf_addr_lo;
1101 		dmae.src_addr_hi = vf_addr_hi;
1102 		dmae.dst_addr_lo = U64_LO(pf_addr);
1103 		dmae.dst_addr_hi = U64_HI(pf_addr);
1104 	} else {
1105 		dmae.opcode_iov = (vfid << DMAE_COMMAND_DST_VFID_SHIFT) |
1106 			(DMAE_DST_VF << DMAE_COMMAND_DST_VFPF_SHIFT) |
1107 			(DMAE_SRC_PF << DMAE_COMMAND_SRC_VFPF_SHIFT);
1108 
1109 		dmae.opcode |= (DMAE_C_SRC << DMAE_COMMAND_C_FUNC_SHIFT);
1110 
1111 		dmae.src_addr_lo = U64_LO(pf_addr);
1112 		dmae.src_addr_hi = U64_HI(pf_addr);
1113 		dmae.dst_addr_lo = vf_addr_lo;
1114 		dmae.dst_addr_hi = vf_addr_hi;
1115 	}
1116 	dmae.len = len32;
1117 
1118 	/* issue the command and wait for completion */
1119 	return bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
1120 }
1121 
bnx2x_vf_mbx_resp_single_tlv(struct bnx2x * bp,struct bnx2x_virtf * vf)1122 static void bnx2x_vf_mbx_resp_single_tlv(struct bnx2x *bp,
1123 					 struct bnx2x_virtf *vf)
1124 {
1125 	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
1126 	u16 length, type;
1127 
1128 	/* prepare response */
1129 	type = mbx->first_tlv.tl.type;
1130 	length = type == CHANNEL_TLV_ACQUIRE ?
1131 		sizeof(struct pfvf_acquire_resp_tlv) :
1132 		sizeof(struct pfvf_general_resp_tlv);
1133 	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, type, length);
1134 	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
1135 		      sizeof(struct channel_list_end_tlv));
1136 }
1137 
bnx2x_vf_mbx_resp_send_msg(struct bnx2x * bp,struct bnx2x_virtf * vf,int vf_rc)1138 static void bnx2x_vf_mbx_resp_send_msg(struct bnx2x *bp,
1139 				       struct bnx2x_virtf *vf,
1140 				       int vf_rc)
1141 {
1142 	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
1143 	struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
1144 	dma_addr_t pf_addr;
1145 	u64 vf_addr;
1146 	int rc;
1147 
1148 	bnx2x_dp_tlv_list(bp, resp);
1149 	DP(BNX2X_MSG_IOV, "mailbox vf address hi 0x%x, lo 0x%x, offset 0x%x\n",
1150 	   mbx->vf_addr_hi, mbx->vf_addr_lo, mbx->first_tlv.resp_msg_offset);
1151 
1152 	resp->hdr.status = bnx2x_pfvf_status_codes(vf_rc);
1153 
1154 	/* send response */
1155 	vf_addr = HILO_U64(mbx->vf_addr_hi, mbx->vf_addr_lo) +
1156 		  mbx->first_tlv.resp_msg_offset;
1157 	pf_addr = mbx->msg_mapping +
1158 		  offsetof(struct bnx2x_vf_mbx_msg, resp);
1159 
1160 	/* Copy the response buffer. The first u64 is written afterwards, as
1161 	 * the vf is sensitive to the header being written
1162 	 */
1163 	vf_addr += sizeof(u64);
1164 	pf_addr += sizeof(u64);
1165 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
1166 				  U64_HI(vf_addr),
1167 				  U64_LO(vf_addr),
1168 				  (sizeof(union pfvf_tlvs) - sizeof(u64))/4);
1169 	if (rc) {
1170 		BNX2X_ERR("Failed to copy response body to VF %d\n",
1171 			  vf->abs_vfid);
1172 		goto mbx_error;
1173 	}
1174 	vf_addr -= sizeof(u64);
1175 	pf_addr -= sizeof(u64);
1176 
1177 	/* ack the FW */
1178 	storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
1179 
1180 	/* copy the response header including status-done field,
1181 	 * must be last dmae, must be after FW is acked
1182 	 */
1183 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
1184 				  U64_HI(vf_addr),
1185 				  U64_LO(vf_addr),
1186 				  sizeof(u64)/4);
1187 
1188 	/* unlock channel mutex */
1189 	bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
1190 
1191 	if (rc) {
1192 		BNX2X_ERR("Failed to copy response status to VF %d\n",
1193 			  vf->abs_vfid);
1194 		goto mbx_error;
1195 	}
1196 	return;
1197 
1198 mbx_error:
1199 	bnx2x_vf_release(bp, vf);
1200 }
1201 
bnx2x_vf_mbx_resp(struct bnx2x * bp,struct bnx2x_virtf * vf,int rc)1202 static void bnx2x_vf_mbx_resp(struct bnx2x *bp,
1203 			      struct bnx2x_virtf *vf,
1204 			      int rc)
1205 {
1206 	bnx2x_vf_mbx_resp_single_tlv(bp, vf);
1207 	bnx2x_vf_mbx_resp_send_msg(bp, vf, rc);
1208 }
1209 
bnx2x_vf_mbx_resp_phys_port(struct bnx2x * bp,struct bnx2x_virtf * vf,void * buffer,u16 * offset)1210 static void bnx2x_vf_mbx_resp_phys_port(struct bnx2x *bp,
1211 					struct bnx2x_virtf *vf,
1212 					void *buffer,
1213 					u16 *offset)
1214 {
1215 	struct vfpf_port_phys_id_resp_tlv *port_id;
1216 
1217 	if (!(bp->flags & HAS_PHYS_PORT_ID))
1218 		return;
1219 
1220 	bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_PHYS_PORT_ID,
1221 		      sizeof(struct vfpf_port_phys_id_resp_tlv));
1222 
1223 	port_id = (struct vfpf_port_phys_id_resp_tlv *)
1224 		  (((u8 *)buffer) + *offset);
1225 	memcpy(port_id->id, bp->phys_port_id, ETH_ALEN);
1226 
1227 	/* Offset should continue representing the offset to the tail
1228 	 * of TLV data (outside this function scope)
1229 	 */
1230 	*offset += sizeof(struct vfpf_port_phys_id_resp_tlv);
1231 }
1232 
bnx2x_vf_mbx_resp_fp_hsi_ver(struct bnx2x * bp,struct bnx2x_virtf * vf,void * buffer,u16 * offset)1233 static void bnx2x_vf_mbx_resp_fp_hsi_ver(struct bnx2x *bp,
1234 					 struct bnx2x_virtf *vf,
1235 					 void *buffer,
1236 					 u16 *offset)
1237 {
1238 	struct vfpf_fp_hsi_resp_tlv *fp_hsi;
1239 
1240 	bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_FP_HSI_SUPPORT,
1241 		      sizeof(struct vfpf_fp_hsi_resp_tlv));
1242 
1243 	fp_hsi = (struct vfpf_fp_hsi_resp_tlv *)
1244 		 (((u8 *)buffer) + *offset);
1245 	fp_hsi->is_supported = (vf->fp_hsi > ETH_FP_HSI_VERSION) ? 0 : 1;
1246 
1247 	/* Offset should continue representing the offset to the tail
1248 	 * of TLV data (outside this function scope)
1249 	 */
1250 	*offset += sizeof(struct vfpf_fp_hsi_resp_tlv);
1251 }
1252 
bnx2x_vf_mbx_acquire_resp(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx,int vfop_status)1253 static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
1254 				      struct bnx2x_vf_mbx *mbx, int vfop_status)
1255 {
1256 	int i;
1257 	struct pfvf_acquire_resp_tlv *resp = &mbx->msg->resp.acquire_resp;
1258 	struct pf_vf_resc *resc = &resp->resc;
1259 	u8 status = bnx2x_pfvf_status_codes(vfop_status);
1260 	u16 length;
1261 
1262 	memset(resp, 0, sizeof(*resp));
1263 
1264 	/* fill in pfdev info */
1265 	resp->pfdev_info.chip_num = bp->common.chip_id;
1266 	resp->pfdev_info.db_size = bp->db_size;
1267 	resp->pfdev_info.indices_per_sb = HC_SB_MAX_INDICES_E2;
1268 	resp->pfdev_info.pf_cap = (PFVF_CAP_RSS |
1269 				   PFVF_CAP_TPA |
1270 				   PFVF_CAP_TPA_UPDATE |
1271 				   PFVF_CAP_VLAN_FILTER);
1272 	bnx2x_fill_fw_str(bp, resp->pfdev_info.fw_ver,
1273 			  sizeof(resp->pfdev_info.fw_ver));
1274 
1275 	if (status == PFVF_STATUS_NO_RESOURCE ||
1276 	    status == PFVF_STATUS_SUCCESS) {
1277 		/* set resources numbers, if status equals NO_RESOURCE these
1278 		 * are max possible numbers
1279 		 */
1280 		resc->num_rxqs = vf_rxq_count(vf) ? :
1281 			bnx2x_vf_max_queue_cnt(bp, vf);
1282 		resc->num_txqs = vf_txq_count(vf) ? :
1283 			bnx2x_vf_max_queue_cnt(bp, vf);
1284 		resc->num_sbs = vf_sb_count(vf);
1285 		resc->num_mac_filters = vf_mac_rules_cnt(vf);
1286 		resc->num_vlan_filters = vf_vlan_rules_cnt(vf);
1287 		resc->num_mc_filters = 0;
1288 
1289 		if (status == PFVF_STATUS_SUCCESS) {
1290 			/* fill in the allocated resources */
1291 			struct pf_vf_bulletin_content *bulletin =
1292 				BP_VF_BULLETIN(bp, vf->index);
1293 
1294 			for_each_vfq(vf, i)
1295 				resc->hw_qid[i] =
1296 					vfq_qzone_id(vf, vfq_get(vf, i));
1297 
1298 			for_each_vf_sb(vf, i) {
1299 				resc->hw_sbs[i].hw_sb_id = vf_igu_sb(vf, i);
1300 				resc->hw_sbs[i].sb_qid = vf_hc_qzone(vf, i);
1301 			}
1302 
1303 			/* if a mac has been set for this vf, supply it */
1304 			if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
1305 				memcpy(resc->current_mac_addr, bulletin->mac,
1306 				       ETH_ALEN);
1307 			}
1308 		}
1309 	}
1310 
1311 	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"
1312 	   "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d, n_mcs-%d, fw_ver: '%s'\n",
1313 	   vf->abs_vfid,
1314 	   resp->pfdev_info.chip_num,
1315 	   resp->pfdev_info.db_size,
1316 	   resp->pfdev_info.indices_per_sb,
1317 	   resp->pfdev_info.pf_cap,
1318 	   resc->num_rxqs,
1319 	   resc->num_txqs,
1320 	   resc->num_sbs,
1321 	   resc->num_mac_filters,
1322 	   resc->num_vlan_filters,
1323 	   resc->num_mc_filters,
1324 	   resp->pfdev_info.fw_ver);
1325 
1326 	DP_CONT(BNX2X_MSG_IOV, "hw_qids- [ ");
1327 	for (i = 0; i < vf_rxq_count(vf); i++)
1328 		DP_CONT(BNX2X_MSG_IOV, "%d ", resc->hw_qid[i]);
1329 	DP_CONT(BNX2X_MSG_IOV, "], sb_info- [ ");
1330 	for (i = 0; i < vf_sb_count(vf); i++)
1331 		DP_CONT(BNX2X_MSG_IOV, "%d:%d ",
1332 			resc->hw_sbs[i].hw_sb_id,
1333 			resc->hw_sbs[i].sb_qid);
1334 	DP_CONT(BNX2X_MSG_IOV, "]\n");
1335 
1336 	/* prepare response */
1337 	length = sizeof(struct pfvf_acquire_resp_tlv);
1338 	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, CHANNEL_TLV_ACQUIRE, length);
1339 
1340 	/* Handle possible VF requests for physical port identifiers.
1341 	 * 'length' should continue to indicate the offset of the first empty
1342 	 * place in the buffer (i.e., where next TLV should be inserted)
1343 	 */
1344 	if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
1345 				  CHANNEL_TLV_PHYS_PORT_ID))
1346 		bnx2x_vf_mbx_resp_phys_port(bp, vf, &mbx->msg->resp, &length);
1347 
1348 	/* `New' vfs will want to know if fastpath HSI is supported, since
1349 	 * if that's not the case they could print into system log the fact
1350 	 * the driver version must be updated.
1351 	 */
1352 	bnx2x_vf_mbx_resp_fp_hsi_ver(bp, vf, &mbx->msg->resp, &length);
1353 
1354 	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
1355 		      sizeof(struct channel_list_end_tlv));
1356 
1357 	/* send the response */
1358 	bnx2x_vf_mbx_resp_send_msg(bp, vf, vfop_status);
1359 }
1360 
bnx2x_vf_mbx_is_windows_vm(struct bnx2x * bp,struct vfpf_acquire_tlv * acquire)1361 static bool bnx2x_vf_mbx_is_windows_vm(struct bnx2x *bp,
1362 				       struct vfpf_acquire_tlv *acquire)
1363 {
1364 	/* Windows driver does one of three things:
1365 	 * 1. Old driver doesn't have bulletin board address set.
1366 	 * 2. 'Middle' driver sends mc_num == 32.
1367 	 * 3. New driver sets the OS field.
1368 	 */
1369 	if (!acquire->bulletin_addr ||
1370 	    acquire->resc_request.num_mc_filters == 32 ||
1371 	    ((acquire->vfdev_info.vf_os & VF_OS_MASK) ==
1372 	     VF_OS_WINDOWS))
1373 		return true;
1374 
1375 	return false;
1376 }
1377 
bnx2x_vf_mbx_acquire_chk_dorq(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1378 static int bnx2x_vf_mbx_acquire_chk_dorq(struct bnx2x *bp,
1379 					 struct bnx2x_virtf *vf,
1380 					 struct bnx2x_vf_mbx *mbx)
1381 {
1382 	/* Linux drivers which correctly set the doorbell size also
1383 	 * send a physical port request
1384 	 */
1385 	if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
1386 				  CHANNEL_TLV_PHYS_PORT_ID))
1387 		return 0;
1388 
1389 	/* Issue does not exist in windows VMs */
1390 	if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
1391 		return 0;
1392 
1393 	return -EOPNOTSUPP;
1394 }
1395 
bnx2x_vf_mbx_acquire(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1396 static void bnx2x_vf_mbx_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
1397 				 struct bnx2x_vf_mbx *mbx)
1398 {
1399 	int rc;
1400 	struct vfpf_acquire_tlv *acquire = &mbx->msg->req.acquire;
1401 
1402 	/* log vfdef info */
1403 	DP(BNX2X_MSG_IOV,
1404 	   "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",
1405 	   vf->abs_vfid, acquire->vfdev_info.vf_id, acquire->vfdev_info.vf_os,
1406 	   acquire->resc_request.num_rxqs, acquire->resc_request.num_txqs,
1407 	   acquire->resc_request.num_sbs, acquire->resc_request.num_mac_filters,
1408 	   acquire->resc_request.num_vlan_filters,
1409 	   acquire->resc_request.num_mc_filters);
1410 
1411 	/* Prevent VFs with old drivers from loading, since they calculate
1412 	 * CIDs incorrectly requiring a VF-flr [VM reboot] in order to recover
1413 	 * while being upgraded.
1414 	 */
1415 	rc = bnx2x_vf_mbx_acquire_chk_dorq(bp, vf, mbx);
1416 	if (rc) {
1417 		DP(BNX2X_MSG_IOV,
1418 		   "VF [%d] - Can't support acquire request due to doorbell mismatch. Please update VM driver\n",
1419 		   vf->abs_vfid);
1420 		goto out;
1421 	}
1422 
1423 	/* Verify the VF fastpath HSI can be supported by the loaded FW.
1424 	 * Linux vfs should be oblivious to changes between v0 and v2.
1425 	 */
1426 	if (bnx2x_vf_mbx_is_windows_vm(bp, &mbx->msg->req.acquire))
1427 		vf->fp_hsi = acquire->vfdev_info.fp_hsi_ver;
1428 	else
1429 		vf->fp_hsi = max_t(u8, acquire->vfdev_info.fp_hsi_ver,
1430 				   ETH_FP_HSI_VER_2);
1431 	if (vf->fp_hsi > ETH_FP_HSI_VERSION) {
1432 		DP(BNX2X_MSG_IOV,
1433 		   "VF [%d] - Can't support acquire request since VF requests a FW version which is too new [%02x > %02x]\n",
1434 		   vf->abs_vfid, acquire->vfdev_info.fp_hsi_ver,
1435 		   ETH_FP_HSI_VERSION);
1436 		rc = -EINVAL;
1437 		goto out;
1438 	}
1439 
1440 	/* acquire the resources */
1441 	rc = bnx2x_vf_acquire(bp, vf, &acquire->resc_request);
1442 
1443 	/* store address of vf's bulletin board */
1444 	vf->bulletin_map = acquire->bulletin_addr;
1445 	if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_EXT_BULLETIN) {
1446 		DP(BNX2X_MSG_IOV, "VF[%d] supports long bulletin boards\n",
1447 		   vf->abs_vfid);
1448 		vf->cfg_flags |= VF_CFG_EXT_BULLETIN;
1449 	} else {
1450 		vf->cfg_flags &= ~VF_CFG_EXT_BULLETIN;
1451 	}
1452 
1453 	if (acquire->vfdev_info.caps & VF_CAP_SUPPORT_VLAN_FILTER) {
1454 		DP(BNX2X_MSG_IOV, "VF[%d] supports vlan filtering\n",
1455 		   vf->abs_vfid);
1456 		vf->cfg_flags |= VF_CFG_VLAN_FILTER;
1457 	} else {
1458 		vf->cfg_flags &= ~VF_CFG_VLAN_FILTER;
1459 	}
1460 
1461 out:
1462 	/* response */
1463 	bnx2x_vf_mbx_acquire_resp(bp, vf, mbx, rc);
1464 }
1465 
bnx2x_vf_mbx_init_vf(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1466 static void bnx2x_vf_mbx_init_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1467 			      struct bnx2x_vf_mbx *mbx)
1468 {
1469 	struct vfpf_init_tlv *init = &mbx->msg->req.init;
1470 	int rc;
1471 
1472 	/* record ghost addresses from vf message */
1473 	vf->fw_stat_map = init->stats_addr;
1474 	vf->stats_stride = init->stats_stride;
1475 	rc = bnx2x_vf_init(bp, vf, (dma_addr_t *)init->sb_addr);
1476 
1477 	/* set VF multiqueue statistics collection mode */
1478 	if (init->flags & VFPF_INIT_FLG_STATS_COALESCE)
1479 		vf->cfg_flags |= VF_CFG_STATS_COALESCE;
1480 
1481 	/* Update VF's view of link state */
1482 	if (vf->cfg_flags & VF_CFG_EXT_BULLETIN)
1483 		bnx2x_iov_link_update_vf(bp, vf->index);
1484 
1485 	/* response */
1486 	bnx2x_vf_mbx_resp(bp, vf, rc);
1487 }
1488 
1489 /* convert MBX queue-flags to standard SP queue-flags */
bnx2x_vf_mbx_set_q_flags(struct bnx2x * bp,u32 mbx_q_flags,unsigned long * sp_q_flags)1490 static void bnx2x_vf_mbx_set_q_flags(struct bnx2x *bp, u32 mbx_q_flags,
1491 				     unsigned long *sp_q_flags)
1492 {
1493 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA)
1494 		__set_bit(BNX2X_Q_FLG_TPA, sp_q_flags);
1495 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_IPV6)
1496 		__set_bit(BNX2X_Q_FLG_TPA_IPV6, sp_q_flags);
1497 	if (mbx_q_flags & VFPF_QUEUE_FLG_TPA_GRO)
1498 		__set_bit(BNX2X_Q_FLG_TPA_GRO, sp_q_flags);
1499 	if (mbx_q_flags & VFPF_QUEUE_FLG_STATS)
1500 		__set_bit(BNX2X_Q_FLG_STATS, sp_q_flags);
1501 	if (mbx_q_flags & VFPF_QUEUE_FLG_VLAN)
1502 		__set_bit(BNX2X_Q_FLG_VLAN, sp_q_flags);
1503 	if (mbx_q_flags & VFPF_QUEUE_FLG_COS)
1504 		__set_bit(BNX2X_Q_FLG_COS, sp_q_flags);
1505 	if (mbx_q_flags & VFPF_QUEUE_FLG_HC)
1506 		__set_bit(BNX2X_Q_FLG_HC, sp_q_flags);
1507 	if (mbx_q_flags & VFPF_QUEUE_FLG_DHC)
1508 		__set_bit(BNX2X_Q_FLG_DHC, sp_q_flags);
1509 	if (mbx_q_flags & VFPF_QUEUE_FLG_LEADING_RSS)
1510 		__set_bit(BNX2X_Q_FLG_LEADING_RSS, sp_q_flags);
1511 
1512 	/* outer vlan removal is set according to PF's multi function mode */
1513 	if (IS_MF_SD(bp))
1514 		__set_bit(BNX2X_Q_FLG_OV, sp_q_flags);
1515 }
1516 
bnx2x_vf_mbx_setup_q(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1517 static void bnx2x_vf_mbx_setup_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
1518 				 struct bnx2x_vf_mbx *mbx)
1519 {
1520 	struct vfpf_setup_q_tlv *setup_q = &mbx->msg->req.setup_q;
1521 	struct bnx2x_vf_queue_construct_params qctor;
1522 	int rc = 0;
1523 
1524 	/* verify vf_qid */
1525 	if (setup_q->vf_qid >= vf_rxq_count(vf)) {
1526 		BNX2X_ERR("vf_qid %d invalid, max queue count is %d\n",
1527 			  setup_q->vf_qid, vf_rxq_count(vf));
1528 		rc = -EINVAL;
1529 		goto response;
1530 	}
1531 
1532 	/* tx queues must be setup alongside rx queues thus if the rx queue
1533 	 * is not marked as valid there's nothing to do.
1534 	 */
1535 	if (setup_q->param_valid & (VFPF_RXQ_VALID|VFPF_TXQ_VALID)) {
1536 		struct bnx2x_vf_queue *q = vfq_get(vf, setup_q->vf_qid);
1537 		unsigned long q_type = 0;
1538 
1539 		struct bnx2x_queue_init_params *init_p;
1540 		struct bnx2x_queue_setup_params *setup_p;
1541 
1542 		if (bnx2x_vfq_is_leading(q))
1543 			bnx2x_leading_vfq_init(bp, vf, q);
1544 
1545 		/* re-init the VF operation context */
1546 		memset(&qctor, 0 ,
1547 		       sizeof(struct bnx2x_vf_queue_construct_params));
1548 		setup_p = &qctor.prep_qsetup;
1549 		init_p =  &qctor.qstate.params.init;
1550 
1551 		/* activate immediately */
1552 		__set_bit(BNX2X_Q_FLG_ACTIVE, &setup_p->flags);
1553 
1554 		if (setup_q->param_valid & VFPF_TXQ_VALID) {
1555 			struct bnx2x_txq_setup_params *txq_params =
1556 				&setup_p->txq_params;
1557 
1558 			__set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
1559 
1560 			/* save sb resource index */
1561 			q->sb_idx = setup_q->txq.vf_sb;
1562 
1563 			/* tx init */
1564 			init_p->tx.hc_rate = setup_q->txq.hc_rate;
1565 			init_p->tx.sb_cq_index = setup_q->txq.sb_index;
1566 
1567 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
1568 						 &init_p->tx.flags);
1569 
1570 			/* tx setup - flags */
1571 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->txq.flags,
1572 						 &setup_p->flags);
1573 
1574 			/* tx setup - general, nothing */
1575 
1576 			/* tx setup - tx */
1577 			txq_params->dscr_map = setup_q->txq.txq_addr;
1578 			txq_params->sb_cq_index = setup_q->txq.sb_index;
1579 			txq_params->traffic_type = setup_q->txq.traffic_type;
1580 
1581 			bnx2x_vfop_qctor_dump_tx(bp, vf, init_p, setup_p,
1582 						 q->index, q->sb_idx);
1583 		}
1584 
1585 		if (setup_q->param_valid & VFPF_RXQ_VALID) {
1586 			struct bnx2x_rxq_setup_params *rxq_params =
1587 							&setup_p->rxq_params;
1588 
1589 			__set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
1590 
1591 			/* Note: there is no support for different SBs
1592 			 * for TX and RX
1593 			 */
1594 			q->sb_idx = setup_q->rxq.vf_sb;
1595 
1596 			/* rx init */
1597 			init_p->rx.hc_rate = setup_q->rxq.hc_rate;
1598 			init_p->rx.sb_cq_index = setup_q->rxq.sb_index;
1599 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
1600 						 &init_p->rx.flags);
1601 
1602 			/* rx setup - flags */
1603 			bnx2x_vf_mbx_set_q_flags(bp, setup_q->rxq.flags,
1604 						 &setup_p->flags);
1605 
1606 			/* rx setup - general */
1607 			setup_p->gen_params.mtu = setup_q->rxq.mtu;
1608 
1609 			/* rx setup - rx */
1610 			rxq_params->drop_flags = setup_q->rxq.drop_flags;
1611 			rxq_params->dscr_map = setup_q->rxq.rxq_addr;
1612 			rxq_params->sge_map = setup_q->rxq.sge_addr;
1613 			rxq_params->rcq_map = setup_q->rxq.rcq_addr;
1614 			rxq_params->rcq_np_map = setup_q->rxq.rcq_np_addr;
1615 			rxq_params->buf_sz = setup_q->rxq.buf_sz;
1616 			rxq_params->tpa_agg_sz = setup_q->rxq.tpa_agg_sz;
1617 			rxq_params->max_sges_pkt = setup_q->rxq.max_sge_pkt;
1618 			rxq_params->sge_buf_sz = setup_q->rxq.sge_buf_sz;
1619 			rxq_params->cache_line_log =
1620 				setup_q->rxq.cache_line_log;
1621 			rxq_params->sb_cq_index = setup_q->rxq.sb_index;
1622 
1623 			/* rx setup - multicast engine */
1624 			if (bnx2x_vfq_is_leading(q)) {
1625 				u8 mcast_id = FW_VF_HANDLE(vf->abs_vfid);
1626 
1627 				rxq_params->mcast_engine_id = mcast_id;
1628 				__set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags);
1629 			}
1630 
1631 			bnx2x_vfop_qctor_dump_rx(bp, vf, init_p, setup_p,
1632 						 q->index, q->sb_idx);
1633 		}
1634 		/* complete the preparations */
1635 		bnx2x_vfop_qctor_prep(bp, vf, q, &qctor, q_type);
1636 
1637 		rc = bnx2x_vf_queue_setup(bp, vf, q->index, &qctor);
1638 		if (rc)
1639 			goto response;
1640 	}
1641 response:
1642 	bnx2x_vf_mbx_resp(bp, vf, rc);
1643 }
1644 
bnx2x_vf_mbx_macvlan_list(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vfpf_set_q_filters_tlv * tlv,struct bnx2x_vf_mac_vlan_filters ** pfl,u32 type_flag)1645 static int bnx2x_vf_mbx_macvlan_list(struct bnx2x *bp,
1646 				     struct bnx2x_virtf *vf,
1647 				     struct vfpf_set_q_filters_tlv *tlv,
1648 				     struct bnx2x_vf_mac_vlan_filters **pfl,
1649 				     u32 type_flag)
1650 {
1651 	int i, j;
1652 	struct bnx2x_vf_mac_vlan_filters *fl = NULL;
1653 
1654 	fl = kzalloc(struct_size(fl, filters, tlv->n_mac_vlan_filters),
1655 		     GFP_KERNEL);
1656 	if (!fl)
1657 		return -ENOMEM;
1658 
1659 	for (i = 0, j = 0; i < tlv->n_mac_vlan_filters; i++) {
1660 		struct vfpf_q_mac_vlan_filter *msg_filter = &tlv->filters[i];
1661 
1662 		if ((msg_filter->flags & type_flag) != type_flag)
1663 			continue;
1664 		memset(&fl->filters[j], 0, sizeof(fl->filters[j]));
1665 		if (type_flag & VFPF_Q_FILTER_DEST_MAC_VALID) {
1666 			fl->filters[j].mac = msg_filter->mac;
1667 			fl->filters[j].type |= BNX2X_VF_FILTER_MAC;
1668 		}
1669 		if (type_flag & VFPF_Q_FILTER_VLAN_TAG_VALID) {
1670 			fl->filters[j].vid = msg_filter->vlan_tag;
1671 			fl->filters[j].type |= BNX2X_VF_FILTER_VLAN;
1672 		}
1673 		fl->filters[j].add = !!(msg_filter->flags & VFPF_Q_FILTER_SET);
1674 		fl->count++;
1675 		j++;
1676 	}
1677 	if (!fl->count)
1678 		kfree(fl);
1679 	else
1680 		*pfl = fl;
1681 
1682 	return 0;
1683 }
1684 
bnx2x_vf_filters_contain(struct vfpf_set_q_filters_tlv * filters,u32 flags)1685 static int bnx2x_vf_filters_contain(struct vfpf_set_q_filters_tlv *filters,
1686 				    u32 flags)
1687 {
1688 	int i, cnt = 0;
1689 
1690 	for (i = 0; i < filters->n_mac_vlan_filters; i++)
1691 		if  ((filters->filters[i].flags & flags) == flags)
1692 			cnt++;
1693 
1694 	return cnt;
1695 }
1696 
bnx2x_vf_mbx_dp_q_filter(struct bnx2x * bp,int msglvl,int idx,struct vfpf_q_mac_vlan_filter * filter)1697 static void bnx2x_vf_mbx_dp_q_filter(struct bnx2x *bp, int msglvl, int idx,
1698 				       struct vfpf_q_mac_vlan_filter *filter)
1699 {
1700 	DP(msglvl, "MAC-VLAN[%d] -- flags=0x%x\n", idx, filter->flags);
1701 	if (filter->flags & VFPF_Q_FILTER_VLAN_TAG_VALID)
1702 		DP_CONT(msglvl, ", vlan=%d", filter->vlan_tag);
1703 	if (filter->flags & VFPF_Q_FILTER_DEST_MAC_VALID)
1704 		DP_CONT(msglvl, ", MAC=%pM", filter->mac);
1705 	DP_CONT(msglvl, "\n");
1706 }
1707 
bnx2x_vf_mbx_dp_q_filters(struct bnx2x * bp,int msglvl,struct vfpf_set_q_filters_tlv * filters)1708 static void bnx2x_vf_mbx_dp_q_filters(struct bnx2x *bp, int msglvl,
1709 				       struct vfpf_set_q_filters_tlv *filters)
1710 {
1711 	int i;
1712 
1713 	if (filters->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED)
1714 		for (i = 0; i < filters->n_mac_vlan_filters; i++)
1715 			bnx2x_vf_mbx_dp_q_filter(bp, msglvl, i,
1716 						 &filters->filters[i]);
1717 
1718 	if (filters->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED)
1719 		DP(msglvl, "RX-MASK=0x%x\n", filters->rx_mask);
1720 
1721 	if (filters->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED)
1722 		for (i = 0; i < filters->n_multicast; i++)
1723 			DP(msglvl, "MULTICAST=%pM\n", filters->multicast[i]);
1724 }
1725 
1726 #define VFPF_MAC_FILTER		VFPF_Q_FILTER_DEST_MAC_VALID
1727 #define VFPF_VLAN_FILTER	VFPF_Q_FILTER_VLAN_TAG_VALID
1728 #define VFPF_VLAN_MAC_FILTER	(VFPF_VLAN_FILTER | VFPF_MAC_FILTER)
1729 
bnx2x_vf_mbx_qfilters(struct bnx2x * bp,struct bnx2x_virtf * vf)1730 static int bnx2x_vf_mbx_qfilters(struct bnx2x *bp, struct bnx2x_virtf *vf)
1731 {
1732 	int rc = 0;
1733 
1734 	struct vfpf_set_q_filters_tlv *msg =
1735 		&BP_VF_MBX(bp, vf->index)->msg->req.set_q_filters;
1736 
1737 	/* check for any mac/vlan changes */
1738 	if (msg->flags & VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED) {
1739 		struct bnx2x_vf_mac_vlan_filters *fl = NULL;
1740 
1741 		/* build vlan-mac list */
1742 		rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
1743 					       VFPF_VLAN_MAC_FILTER);
1744 		if (rc)
1745 			goto op_err;
1746 
1747 		if (fl) {
1748 
1749 			/* set vlan-mac list */
1750 			rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
1751 							   msg->vf_qid,
1752 							   false);
1753 			if (rc)
1754 				goto op_err;
1755 		}
1756 
1757 		/* build mac list */
1758 		fl = NULL;
1759 
1760 		rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
1761 					       VFPF_MAC_FILTER);
1762 		if (rc)
1763 			goto op_err;
1764 
1765 		if (fl) {
1766 			/* set mac list */
1767 			rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
1768 							   msg->vf_qid,
1769 							   false);
1770 			if (rc)
1771 				goto op_err;
1772 		}
1773 
1774 		/* build vlan list */
1775 		fl = NULL;
1776 
1777 		rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl,
1778 					       VFPF_VLAN_FILTER);
1779 		if (rc)
1780 			goto op_err;
1781 
1782 		if (fl) {
1783 			/* set vlan list */
1784 			rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl,
1785 							   msg->vf_qid,
1786 							   false);
1787 			if (rc)
1788 				goto op_err;
1789 		}
1790 
1791 	}
1792 
1793 	if (msg->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED) {
1794 		unsigned long accept = 0;
1795 		struct pf_vf_bulletin_content *bulletin =
1796 					BP_VF_BULLETIN(bp, vf->index);
1797 
1798 		/* Ignore VF requested mode; instead set a regular mode */
1799 		if (msg->rx_mask !=  VFPF_RX_MASK_ACCEPT_NONE) {
1800 			__set_bit(BNX2X_ACCEPT_UNICAST, &accept);
1801 			__set_bit(BNX2X_ACCEPT_MULTICAST, &accept);
1802 			__set_bit(BNX2X_ACCEPT_BROADCAST, &accept);
1803 		}
1804 
1805 		/* any_vlan is not configured if HV is forcing VLAN
1806 		 * any_vlan is configured if
1807 		 *   1. VF does not support vlan filtering
1808 		 *   OR
1809 		 *   2. VF supports vlan filtering and explicitly requested it
1810 		 */
1811 		if (!(bulletin->valid_bitmap & (1 << VLAN_VALID)) &&
1812 		    (!(vf->cfg_flags & VF_CFG_VLAN_FILTER) ||
1813 		     msg->rx_mask & VFPF_RX_MASK_ACCEPT_ANY_VLAN))
1814 			__set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept);
1815 
1816 		/* set rx-mode */
1817 		rc = bnx2x_vf_rxmode(bp, vf, msg->vf_qid, accept);
1818 		if (rc)
1819 			goto op_err;
1820 	}
1821 
1822 	if (msg->flags & VFPF_SET_Q_FILTERS_MULTICAST_CHANGED) {
1823 		/* set mcasts */
1824 		rc = bnx2x_vf_mcast(bp, vf, msg->multicast,
1825 				    msg->n_multicast, false);
1826 		if (rc)
1827 			goto op_err;
1828 	}
1829 op_err:
1830 	if (rc)
1831 		BNX2X_ERR("QFILTERS[%d:%d] error: rc %d\n",
1832 			  vf->abs_vfid, msg->vf_qid, rc);
1833 	return rc;
1834 }
1835 
bnx2x_filters_validate_mac(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vfpf_set_q_filters_tlv * filters)1836 static int bnx2x_filters_validate_mac(struct bnx2x *bp,
1837 				      struct bnx2x_virtf *vf,
1838 				      struct vfpf_set_q_filters_tlv *filters)
1839 {
1840 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
1841 	int rc = 0;
1842 
1843 	/* if a mac was already set for this VF via the set vf mac ndo, we only
1844 	 * accept mac configurations of that mac. Why accept them at all?
1845 	 * because PF may have been unable to configure the mac at the time
1846 	 * since queue was not set up.
1847 	 */
1848 	if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID) {
1849 		struct vfpf_q_mac_vlan_filter *filter = NULL;
1850 		int i;
1851 
1852 		for (i = 0; i < filters->n_mac_vlan_filters; i++) {
1853 			if (!(filters->filters[i].flags &
1854 			      VFPF_Q_FILTER_DEST_MAC_VALID))
1855 				continue;
1856 
1857 			/* once a mac was set by ndo can only accept
1858 			 * a single mac...
1859 			 */
1860 			if (filter) {
1861 				BNX2X_ERR("VF[%d] requested the addition of multiple macs after set_vf_mac ndo was called [%d filters]\n",
1862 					  vf->abs_vfid,
1863 					  filters->n_mac_vlan_filters);
1864 				rc = -EPERM;
1865 				goto response;
1866 			}
1867 
1868 			filter = &filters->filters[i];
1869 		}
1870 
1871 		/* ...and only the mac set by the ndo */
1872 		if (filter &&
1873 		    !ether_addr_equal(filter->mac, bulletin->mac)) {
1874 			BNX2X_ERR("VF[%d] requested the addition of a mac address not matching the one configured by set_vf_mac ndo\n",
1875 				  vf->abs_vfid);
1876 
1877 			rc = -EPERM;
1878 			goto response;
1879 		}
1880 	}
1881 
1882 response:
1883 	return rc;
1884 }
1885 
bnx2x_filters_validate_vlan(struct bnx2x * bp,struct bnx2x_virtf * vf,struct vfpf_set_q_filters_tlv * filters)1886 static int bnx2x_filters_validate_vlan(struct bnx2x *bp,
1887 				       struct bnx2x_virtf *vf,
1888 				       struct vfpf_set_q_filters_tlv *filters)
1889 {
1890 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf->index);
1891 	int rc = 0;
1892 
1893 	/* if vlan was set by hypervisor we don't allow guest to config vlan */
1894 	if (bulletin->valid_bitmap & 1 << VLAN_VALID) {
1895 		/* search for vlan filters */
1896 
1897 		if (bnx2x_vf_filters_contain(filters,
1898 					     VFPF_Q_FILTER_VLAN_TAG_VALID)) {
1899 			BNX2X_ERR("VF[%d] attempted to configure vlan but one was already set by Hypervisor. Aborting request\n",
1900 				  vf->abs_vfid);
1901 			rc = -EPERM;
1902 			goto response;
1903 		}
1904 	}
1905 
1906 	/* verify vf_qid */
1907 	if (filters->vf_qid > vf_rxq_count(vf)) {
1908 		rc = -EPERM;
1909 		goto response;
1910 	}
1911 
1912 response:
1913 	return rc;
1914 }
1915 
bnx2x_vf_mbx_set_q_filters(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1916 static void bnx2x_vf_mbx_set_q_filters(struct bnx2x *bp,
1917 				       struct bnx2x_virtf *vf,
1918 				       struct bnx2x_vf_mbx *mbx)
1919 {
1920 	struct vfpf_set_q_filters_tlv *filters = &mbx->msg->req.set_q_filters;
1921 	int rc;
1922 
1923 	rc = bnx2x_filters_validate_mac(bp, vf, filters);
1924 	if (rc)
1925 		goto response;
1926 
1927 	rc = bnx2x_filters_validate_vlan(bp, vf, filters);
1928 	if (rc)
1929 		goto response;
1930 
1931 	DP(BNX2X_MSG_IOV, "VF[%d] Q_FILTERS: queue[%d]\n",
1932 	   vf->abs_vfid,
1933 	   filters->vf_qid);
1934 
1935 	/* print q_filter message */
1936 	bnx2x_vf_mbx_dp_q_filters(bp, BNX2X_MSG_IOV, filters);
1937 
1938 	rc = bnx2x_vf_mbx_qfilters(bp, vf);
1939 response:
1940 	bnx2x_vf_mbx_resp(bp, vf, rc);
1941 }
1942 
bnx2x_vf_mbx_teardown_q(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1943 static void bnx2x_vf_mbx_teardown_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
1944 				    struct bnx2x_vf_mbx *mbx)
1945 {
1946 	int qid = mbx->msg->req.q_op.vf_qid;
1947 	int rc;
1948 
1949 	DP(BNX2X_MSG_IOV, "VF[%d] Q_TEARDOWN: vf_qid=%d\n",
1950 	   vf->abs_vfid, qid);
1951 
1952 	rc = bnx2x_vf_queue_teardown(bp, vf, qid);
1953 	bnx2x_vf_mbx_resp(bp, vf, rc);
1954 }
1955 
bnx2x_vf_mbx_close_vf(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1956 static void bnx2x_vf_mbx_close_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1957 				  struct bnx2x_vf_mbx *mbx)
1958 {
1959 	int rc;
1960 
1961 	DP(BNX2X_MSG_IOV, "VF[%d] VF_CLOSE\n", vf->abs_vfid);
1962 
1963 	rc = bnx2x_vf_close(bp, vf);
1964 	bnx2x_vf_mbx_resp(bp, vf, rc);
1965 }
1966 
bnx2x_vf_mbx_release_vf(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1967 static void bnx2x_vf_mbx_release_vf(struct bnx2x *bp, struct bnx2x_virtf *vf,
1968 				    struct bnx2x_vf_mbx *mbx)
1969 {
1970 	int rc;
1971 
1972 	DP(BNX2X_MSG_IOV, "VF[%d] VF_RELEASE\n", vf->abs_vfid);
1973 
1974 	rc = bnx2x_vf_free(bp, vf);
1975 	bnx2x_vf_mbx_resp(bp, vf, rc);
1976 }
1977 
bnx2x_vf_mbx_update_rss(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)1978 static void bnx2x_vf_mbx_update_rss(struct bnx2x *bp, struct bnx2x_virtf *vf,
1979 				    struct bnx2x_vf_mbx *mbx)
1980 {
1981 	struct bnx2x_config_rss_params rss;
1982 	struct vfpf_rss_tlv *rss_tlv = &mbx->msg->req.update_rss;
1983 	int rc = 0;
1984 
1985 	if (rss_tlv->ind_table_size != T_ETH_INDIRECTION_TABLE_SIZE ||
1986 	    rss_tlv->rss_key_size != T_ETH_RSS_KEY) {
1987 		BNX2X_ERR("failing rss configuration of vf %d due to size mismatch\n",
1988 			  vf->index);
1989 		rc = -EINVAL;
1990 		goto mbx_resp;
1991 	}
1992 
1993 	memset(&rss, 0, sizeof(struct bnx2x_config_rss_params));
1994 
1995 	/* set vfop params according to rss tlv */
1996 	memcpy(rss.ind_table, rss_tlv->ind_table,
1997 	       T_ETH_INDIRECTION_TABLE_SIZE);
1998 	memcpy(rss.rss_key, rss_tlv->rss_key, sizeof(rss_tlv->rss_key));
1999 	rss.rss_obj = &vf->rss_conf_obj;
2000 	rss.rss_result_mask = rss_tlv->rss_result_mask;
2001 
2002 	/* flags handled individually for backward/forward compatibility */
2003 	rss.rss_flags = 0;
2004 	rss.ramrod_flags = 0;
2005 
2006 	if (rss_tlv->rss_flags & VFPF_RSS_MODE_DISABLED)
2007 		__set_bit(BNX2X_RSS_MODE_DISABLED, &rss.rss_flags);
2008 	if (rss_tlv->rss_flags & VFPF_RSS_MODE_REGULAR)
2009 		__set_bit(BNX2X_RSS_MODE_REGULAR, &rss.rss_flags);
2010 	if (rss_tlv->rss_flags & VFPF_RSS_SET_SRCH)
2011 		__set_bit(BNX2X_RSS_SET_SRCH, &rss.rss_flags);
2012 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4)
2013 		__set_bit(BNX2X_RSS_IPV4, &rss.rss_flags);
2014 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP)
2015 		__set_bit(BNX2X_RSS_IPV4_TCP, &rss.rss_flags);
2016 	if (rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP)
2017 		__set_bit(BNX2X_RSS_IPV4_UDP, &rss.rss_flags);
2018 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6)
2019 		__set_bit(BNX2X_RSS_IPV6, &rss.rss_flags);
2020 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP)
2021 		__set_bit(BNX2X_RSS_IPV6_TCP, &rss.rss_flags);
2022 	if (rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)
2023 		__set_bit(BNX2X_RSS_IPV6_UDP, &rss.rss_flags);
2024 
2025 	if ((!(rss_tlv->rss_flags & VFPF_RSS_IPV4_TCP) &&
2026 	     rss_tlv->rss_flags & VFPF_RSS_IPV4_UDP) ||
2027 	    (!(rss_tlv->rss_flags & VFPF_RSS_IPV6_TCP) &&
2028 	     rss_tlv->rss_flags & VFPF_RSS_IPV6_UDP)) {
2029 		BNX2X_ERR("about to hit a FW assert. aborting...\n");
2030 		rc = -EINVAL;
2031 		goto mbx_resp;
2032 	}
2033 
2034 	rc = bnx2x_vf_rss_update(bp, vf, &rss);
2035 mbx_resp:
2036 	bnx2x_vf_mbx_resp(bp, vf, rc);
2037 }
2038 
bnx2x_validate_tpa_params(struct bnx2x * bp,struct vfpf_tpa_tlv * tpa_tlv)2039 static int bnx2x_validate_tpa_params(struct bnx2x *bp,
2040 				       struct vfpf_tpa_tlv *tpa_tlv)
2041 {
2042 	int rc = 0;
2043 
2044 	if (tpa_tlv->tpa_client_info.max_sges_for_packet >
2045 	    U_ETH_MAX_SGES_FOR_PACKET) {
2046 		rc = -EINVAL;
2047 		BNX2X_ERR("TPA update: max_sges received %d, max is %d\n",
2048 			  tpa_tlv->tpa_client_info.max_sges_for_packet,
2049 			  U_ETH_MAX_SGES_FOR_PACKET);
2050 	}
2051 
2052 	if (tpa_tlv->tpa_client_info.max_tpa_queues > MAX_AGG_QS(bp)) {
2053 		rc = -EINVAL;
2054 		BNX2X_ERR("TPA update: max_tpa_queues received %d, max is %d\n",
2055 			  tpa_tlv->tpa_client_info.max_tpa_queues,
2056 			  MAX_AGG_QS(bp));
2057 	}
2058 
2059 	return rc;
2060 }
2061 
bnx2x_vf_mbx_update_tpa(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)2062 static void bnx2x_vf_mbx_update_tpa(struct bnx2x *bp, struct bnx2x_virtf *vf,
2063 				    struct bnx2x_vf_mbx *mbx)
2064 {
2065 	struct bnx2x_queue_update_tpa_params vf_op_params;
2066 	struct vfpf_tpa_tlv *tpa_tlv = &mbx->msg->req.update_tpa;
2067 	int rc = 0;
2068 
2069 	memset(&vf_op_params, 0, sizeof(vf_op_params));
2070 
2071 	if (bnx2x_validate_tpa_params(bp, tpa_tlv))
2072 		goto mbx_resp;
2073 
2074 	vf_op_params.complete_on_both_clients =
2075 		tpa_tlv->tpa_client_info.complete_on_both_clients;
2076 	vf_op_params.dont_verify_thr =
2077 		tpa_tlv->tpa_client_info.dont_verify_thr;
2078 	vf_op_params.max_agg_sz =
2079 		tpa_tlv->tpa_client_info.max_agg_size;
2080 	vf_op_params.max_sges_pkt =
2081 		tpa_tlv->tpa_client_info.max_sges_for_packet;
2082 	vf_op_params.max_tpa_queues =
2083 		tpa_tlv->tpa_client_info.max_tpa_queues;
2084 	vf_op_params.sge_buff_sz =
2085 		tpa_tlv->tpa_client_info.sge_buff_size;
2086 	vf_op_params.sge_pause_thr_high =
2087 		tpa_tlv->tpa_client_info.sge_pause_thr_high;
2088 	vf_op_params.sge_pause_thr_low =
2089 		tpa_tlv->tpa_client_info.sge_pause_thr_low;
2090 	vf_op_params.tpa_mode =
2091 		tpa_tlv->tpa_client_info.tpa_mode;
2092 	vf_op_params.update_ipv4 =
2093 		tpa_tlv->tpa_client_info.update_ipv4;
2094 	vf_op_params.update_ipv6 =
2095 		tpa_tlv->tpa_client_info.update_ipv6;
2096 
2097 	rc = bnx2x_vf_tpa_update(bp, vf, tpa_tlv, &vf_op_params);
2098 
2099 mbx_resp:
2100 	bnx2x_vf_mbx_resp(bp, vf, rc);
2101 }
2102 
2103 /* dispatch request */
bnx2x_vf_mbx_request(struct bnx2x * bp,struct bnx2x_virtf * vf,struct bnx2x_vf_mbx * mbx)2104 static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
2105 				  struct bnx2x_vf_mbx *mbx)
2106 {
2107 	int i;
2108 
2109 	if (vf->state == VF_LOST) {
2110 		/* Just ack the FW and return if VFs are lost
2111 		 * in case of parity error. VFs are supposed to be timedout
2112 		 * on waiting for PF response.
2113 		 */
2114 		DP(BNX2X_MSG_IOV,
2115 		   "VF 0x%x lost, not handling the request\n", vf->abs_vfid);
2116 
2117 		storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
2118 		return;
2119 	}
2120 
2121 	/* check if tlv type is known */
2122 	if (bnx2x_tlv_supported(mbx->first_tlv.tl.type)) {
2123 		/* Lock the per vf op mutex and note the locker's identity.
2124 		 * The unlock will take place in mbx response.
2125 		 */
2126 		bnx2x_lock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
2127 
2128 		/* switch on the opcode */
2129 		switch (mbx->first_tlv.tl.type) {
2130 		case CHANNEL_TLV_ACQUIRE:
2131 			bnx2x_vf_mbx_acquire(bp, vf, mbx);
2132 			return;
2133 		case CHANNEL_TLV_INIT:
2134 			bnx2x_vf_mbx_init_vf(bp, vf, mbx);
2135 			return;
2136 		case CHANNEL_TLV_SETUP_Q:
2137 			bnx2x_vf_mbx_setup_q(bp, vf, mbx);
2138 			return;
2139 		case CHANNEL_TLV_SET_Q_FILTERS:
2140 			bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
2141 			return;
2142 		case CHANNEL_TLV_TEARDOWN_Q:
2143 			bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
2144 			return;
2145 		case CHANNEL_TLV_CLOSE:
2146 			bnx2x_vf_mbx_close_vf(bp, vf, mbx);
2147 			return;
2148 		case CHANNEL_TLV_RELEASE:
2149 			bnx2x_vf_mbx_release_vf(bp, vf, mbx);
2150 			return;
2151 		case CHANNEL_TLV_UPDATE_RSS:
2152 			bnx2x_vf_mbx_update_rss(bp, vf, mbx);
2153 			return;
2154 		case CHANNEL_TLV_UPDATE_TPA:
2155 			bnx2x_vf_mbx_update_tpa(bp, vf, mbx);
2156 			return;
2157 		}
2158 
2159 	} else {
2160 		/* unknown TLV - this may belong to a VF driver from the future
2161 		 * - a version written after this PF driver was written, which
2162 		 * supports features unknown as of yet. Too bad since we don't
2163 		 * support them. Or this may be because someone wrote a crappy
2164 		 * VF driver and is sending garbage over the channel.
2165 		 */
2166 		BNX2X_ERR("unknown TLV. type %d length %d vf->state was %d. first 20 bytes of mailbox buffer:\n",
2167 			  mbx->first_tlv.tl.type, mbx->first_tlv.tl.length,
2168 			  vf->state);
2169 		for (i = 0; i < 20; i++)
2170 			DP_CONT(BNX2X_MSG_IOV, "%x ",
2171 				mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
2172 	}
2173 
2174 	/* can we respond to VF (do we have an address for it?) */
2175 	if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
2176 		/* notify the VF that we do not support this request */
2177 		bnx2x_vf_mbx_resp(bp, vf, PFVF_STATUS_NOT_SUPPORTED);
2178 	} else {
2179 		/* can't send a response since this VF is unknown to us
2180 		 * just ack the FW to release the mailbox and unlock
2181 		 * the channel.
2182 		 */
2183 		storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
2184 		/* Firmware ack should be written before unlocking channel */
2185 		bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
2186 	}
2187 }
2188 
bnx2x_vf_mbx_schedule(struct bnx2x * bp,struct vf_pf_event_data * vfpf_event)2189 void bnx2x_vf_mbx_schedule(struct bnx2x *bp,
2190 			   struct vf_pf_event_data *vfpf_event)
2191 {
2192 	u8 vf_idx;
2193 
2194 	DP(BNX2X_MSG_IOV,
2195 	   "vf pf event received: vfid %d, address_hi %x, address lo %x",
2196 	   vfpf_event->vf_id, vfpf_event->msg_addr_hi, vfpf_event->msg_addr_lo);
2197 	/* Sanity checks consider removing later */
2198 
2199 	/* check if the vf_id is valid */
2200 	if (vfpf_event->vf_id - BP_VFDB(bp)->sriov.first_vf_in_pf >
2201 	    BNX2X_NR_VIRTFN(bp)) {
2202 		BNX2X_ERR("Illegal vf_id %d max allowed: %d\n",
2203 			  vfpf_event->vf_id, BNX2X_NR_VIRTFN(bp));
2204 		return;
2205 	}
2206 
2207 	vf_idx = bnx2x_vf_idx_by_abs_fid(bp, vfpf_event->vf_id);
2208 
2209 	/* Update VFDB with current message and schedule its handling */
2210 	mutex_lock(&BP_VFDB(bp)->event_mutex);
2211 	BP_VF_MBX(bp, vf_idx)->vf_addr_hi =
2212 		le32_to_cpu(vfpf_event->msg_addr_hi);
2213 	BP_VF_MBX(bp, vf_idx)->vf_addr_lo =
2214 		le32_to_cpu(vfpf_event->msg_addr_lo);
2215 	BP_VFDB(bp)->event_occur |= (1ULL << vf_idx);
2216 	mutex_unlock(&BP_VFDB(bp)->event_mutex);
2217 
2218 	bnx2x_schedule_iov_task(bp, BNX2X_IOV_HANDLE_VF_MSG);
2219 }
2220 
2221 /* handle new vf-pf messages */
bnx2x_vf_mbx(struct bnx2x * bp)2222 void bnx2x_vf_mbx(struct bnx2x *bp)
2223 {
2224 	struct bnx2x_vfdb *vfdb = BP_VFDB(bp);
2225 	u64 events;
2226 	u8 vf_idx;
2227 	int rc;
2228 
2229 	if (!vfdb)
2230 		return;
2231 
2232 	mutex_lock(&vfdb->event_mutex);
2233 	events = vfdb->event_occur;
2234 	vfdb->event_occur = 0;
2235 	mutex_unlock(&vfdb->event_mutex);
2236 
2237 	for_each_vf(bp, vf_idx) {
2238 		struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf_idx);
2239 		struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
2240 
2241 		/* Handle VFs which have pending events */
2242 		if (!(events & (1ULL << vf_idx)))
2243 			continue;
2244 
2245 		DP(BNX2X_MSG_IOV,
2246 		   "Handling vf pf event vfid %d, address: [%x:%x], resp_offset 0x%x\n",
2247 		   vf_idx, mbx->vf_addr_hi, mbx->vf_addr_lo,
2248 		   mbx->first_tlv.resp_msg_offset);
2249 
2250 		/* dmae to get the VF request */
2251 		rc = bnx2x_copy32_vf_dmae(bp, true, mbx->msg_mapping,
2252 					  vf->abs_vfid, mbx->vf_addr_hi,
2253 					  mbx->vf_addr_lo,
2254 					  sizeof(union vfpf_tlvs)/4);
2255 		if (rc) {
2256 			BNX2X_ERR("Failed to copy request VF %d\n",
2257 				  vf->abs_vfid);
2258 			bnx2x_vf_release(bp, vf);
2259 			return;
2260 		}
2261 
2262 		/* process the VF message header */
2263 		mbx->first_tlv = mbx->msg->req.first_tlv;
2264 
2265 		/* Clean response buffer to refrain from falsely
2266 		 * seeing chains.
2267 		 */
2268 		memset(&mbx->msg->resp, 0, sizeof(union pfvf_tlvs));
2269 
2270 		/* dispatch the request (will prepare the response) */
2271 		bnx2x_vf_mbx_request(bp, vf, mbx);
2272 	}
2273 }
2274 
bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content * bulletin,bool support_long)2275 void bnx2x_vf_bulletin_finalize(struct pf_vf_bulletin_content *bulletin,
2276 				bool support_long)
2277 {
2278 	/* Older VFs contain a bug where they can't check CRC for bulletin
2279 	 * boards of length greater than legacy size.
2280 	 */
2281 	bulletin->length = support_long ? BULLETIN_CONTENT_SIZE :
2282 					  BULLETIN_CONTENT_LEGACY_SIZE;
2283 	bulletin->crc = bnx2x_crc_vf_bulletin(bulletin);
2284 }
2285 
2286 /* propagate local bulletin board to vf */
bnx2x_post_vf_bulletin(struct bnx2x * bp,int vf)2287 int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf)
2288 {
2289 	struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vf);
2290 	dma_addr_t pf_addr = BP_VF_BULLETIN_DMA(bp)->mapping +
2291 		vf * BULLETIN_CONTENT_SIZE;
2292 	dma_addr_t vf_addr = bnx2x_vf(bp, vf, bulletin_map);
2293 	int rc;
2294 
2295 	/* can only update vf after init took place */
2296 	if (bnx2x_vf(bp, vf, state) != VF_ENABLED &&
2297 	    bnx2x_vf(bp, vf, state) != VF_ACQUIRED)
2298 		return 0;
2299 
2300 	/* increment bulletin board version and compute crc */
2301 	bulletin->version++;
2302 	bnx2x_vf_bulletin_finalize(bulletin,
2303 				   (bnx2x_vf(bp, vf, cfg_flags) &
2304 				    VF_CFG_EXT_BULLETIN) ? true : false);
2305 
2306 	/* propagate bulletin board via dmae to vm memory */
2307 	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr,
2308 				  bnx2x_vf(bp, vf, abs_vfid), U64_HI(vf_addr),
2309 				  U64_LO(vf_addr), bulletin->length / 4);
2310 	return rc;
2311 }
2312