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bnx2x: fix receive of VF->PF mailbox messages by the PF on big-endian
[deliverable/linux.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_vfpf.c
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 }
Linux kernel - Deliverables
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