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   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4#include "iavf.h"
   5#include "iavf_prototype.h"
   6#include "iavf_client.h"
   7
   8/* busy wait delay in msec */
   9#define IAVF_BUSY_WAIT_DELAY 10
  10#define IAVF_BUSY_WAIT_COUNT 50
  11
  12/**
  13 * iavf_send_pf_msg
  14 * @adapter: adapter structure
  15 * @op: virtual channel opcode
  16 * @msg: pointer to message buffer
  17 * @len: message length
  18 *
  19 * Send message to PF and print status if failure.
  20 **/
  21static int iavf_send_pf_msg(struct iavf_adapter *adapter,
  22			    enum virtchnl_ops op, u8 *msg, u16 len)
  23{
  24	struct iavf_hw *hw = &adapter->hw;
  25	enum iavf_status err;
  26
  27	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
  28		return 0; /* nothing to see here, move along */
  29
  30	err = iavf_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
  31	if (err)
  32		dev_dbg(&adapter->pdev->dev, "Unable to send opcode %d to PF, err %s, aq_err %s\n",
  33			op, iavf_stat_str(hw, err),
  34			iavf_aq_str(hw, hw->aq.asq_last_status));
  35	return err;
  36}
  37
  38/**
  39 * iavf_send_api_ver
  40 * @adapter: adapter structure
  41 *
  42 * Send API version admin queue message to the PF. The reply is not checked
  43 * in this function. Returns 0 if the message was successfully
  44 * sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
  45 **/
  46int iavf_send_api_ver(struct iavf_adapter *adapter)
  47{
  48	struct virtchnl_version_info vvi;
  49
  50	vvi.major = VIRTCHNL_VERSION_MAJOR;
  51	vvi.minor = VIRTCHNL_VERSION_MINOR;
  52
  53	return iavf_send_pf_msg(adapter, VIRTCHNL_OP_VERSION, (u8 *)&vvi,
  54				sizeof(vvi));
  55}
  56
  57/**
  58 * iavf_verify_api_ver
  59 * @adapter: adapter structure
  60 *
  61 * Compare API versions with the PF. Must be called after admin queue is
  62 * initialized. Returns 0 if API versions match, -EIO if they do not,
  63 * IAVF_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
  64 * from the firmware are propagated.
  65 **/
  66int iavf_verify_api_ver(struct iavf_adapter *adapter)
  67{
  68	struct virtchnl_version_info *pf_vvi;
  69	struct iavf_hw *hw = &adapter->hw;
  70	struct iavf_arq_event_info event;
  71	enum virtchnl_ops op;
  72	enum iavf_status err;
  73
  74	event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
  75	event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
  76	if (!event.msg_buf) {
  77		err = -ENOMEM;
  78		goto out;
  79	}
  80
  81	while (1) {
  82		err = iavf_clean_arq_element(hw, &event, NULL);
  83		/* When the AQ is empty, iavf_clean_arq_element will return
  84		 * nonzero and this loop will terminate.
  85		 */
  86		if (err)
  87			goto out_alloc;
  88		op =
  89		    (enum virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
  90		if (op == VIRTCHNL_OP_VERSION)
  91			break;
  92	}
  93
  94
  95	err = (enum iavf_status)le32_to_cpu(event.desc.cookie_low);
  96	if (err)
  97		goto out_alloc;
  98
  99	if (op != VIRTCHNL_OP_VERSION) {
 100		dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
 101			op);
 102		err = -EIO;
 103		goto out_alloc;
 104	}
 105
 106	pf_vvi = (struct virtchnl_version_info *)event.msg_buf;
 107	adapter->pf_version = *pf_vvi;
 108
 109	if ((pf_vvi->major > VIRTCHNL_VERSION_MAJOR) ||
 110	    ((pf_vvi->major == VIRTCHNL_VERSION_MAJOR) &&
 111	     (pf_vvi->minor > VIRTCHNL_VERSION_MINOR)))
 112		err = -EIO;
 113
 114out_alloc:
 115	kfree(event.msg_buf);
 116out:
 117	return err;
 118}
 119
 120/**
 121 * iavf_send_vf_config_msg
 122 * @adapter: adapter structure
 123 *
 124 * Send VF configuration request admin queue message to the PF. The reply
 125 * is not checked in this function. Returns 0 if the message was
 126 * successfully sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
 127 **/
 128int iavf_send_vf_config_msg(struct iavf_adapter *adapter)
 129{
 130	u32 caps;
 131
 132	caps = VIRTCHNL_VF_OFFLOAD_L2 |
 133	       VIRTCHNL_VF_OFFLOAD_RSS_PF |
 134	       VIRTCHNL_VF_OFFLOAD_RSS_AQ |
 135	       VIRTCHNL_VF_OFFLOAD_RSS_REG |
 136	       VIRTCHNL_VF_OFFLOAD_VLAN |
 137	       VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
 138	       VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 |
 139	       VIRTCHNL_VF_OFFLOAD_ENCAP |
 140	       VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM |
 141	       VIRTCHNL_VF_OFFLOAD_REQ_QUEUES |
 142	       VIRTCHNL_VF_OFFLOAD_ADQ |
 143	       VIRTCHNL_VF_OFFLOAD_USO |
 144	       VIRTCHNL_VF_OFFLOAD_FDIR_PF |
 145	       VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF |
 146	       VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
 147
 148	adapter->current_op = VIRTCHNL_OP_GET_VF_RESOURCES;
 149	adapter->aq_required &= ~IAVF_FLAG_AQ_GET_CONFIG;
 150	if (PF_IS_V11(adapter))
 151		return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
 152					(u8 *)&caps, sizeof(caps));
 153	else
 154		return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
 155					NULL, 0);
 156}
 157
 158/**
 159 * iavf_validate_num_queues
 160 * @adapter: adapter structure
 161 *
 162 * Validate that the number of queues the PF has sent in
 163 * VIRTCHNL_OP_GET_VF_RESOURCES is not larger than the VF can handle.
 164 **/
 165static void iavf_validate_num_queues(struct iavf_adapter *adapter)
 166{
 167	if (adapter->vf_res->num_queue_pairs > IAVF_MAX_REQ_QUEUES) {
 168		struct virtchnl_vsi_resource *vsi_res;
 169		int i;
 170
 171		dev_info(&adapter->pdev->dev, "Received %d queues, but can only have a max of %d\n",
 172			 adapter->vf_res->num_queue_pairs,
 173			 IAVF_MAX_REQ_QUEUES);
 174		dev_info(&adapter->pdev->dev, "Fixing by reducing queues to %d\n",
 175			 IAVF_MAX_REQ_QUEUES);
 176		adapter->vf_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
 177		for (i = 0; i < adapter->vf_res->num_vsis; i++) {
 178			vsi_res = &adapter->vf_res->vsi_res[i];
 179			vsi_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
 180		}
 181	}
 182}
 183
 184/**
 185 * iavf_get_vf_config
 186 * @adapter: private adapter structure
 187 *
 188 * Get VF configuration from PF and populate hw structure. Must be called after
 189 * admin queue is initialized. Busy waits until response is received from PF,
 190 * with maximum timeout. Response from PF is returned in the buffer for further
 191 * processing by the caller.
 192 **/
 193int iavf_get_vf_config(struct iavf_adapter *adapter)
 194{
 195	struct iavf_hw *hw = &adapter->hw;
 196	struct iavf_arq_event_info event;
 197	enum virtchnl_ops op;
 198	enum iavf_status err;
 199	u16 len;
 200
 201	len =  sizeof(struct virtchnl_vf_resource) +
 202		IAVF_MAX_VF_VSI * sizeof(struct virtchnl_vsi_resource);
 203	event.buf_len = len;
 204	event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
 205	if (!event.msg_buf) {
 206		err = -ENOMEM;
 207		goto out;
 208	}
 209
 210	while (1) {
 211		/* When the AQ is empty, iavf_clean_arq_element will return
 212		 * nonzero and this loop will terminate.
 213		 */
 214		err = iavf_clean_arq_element(hw, &event, NULL);
 215		if (err)
 216			goto out_alloc;
 217		op =
 218		    (enum virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
 219		if (op == VIRTCHNL_OP_GET_VF_RESOURCES)
 220			break;
 221	}
 222
 223	err = (enum iavf_status)le32_to_cpu(event.desc.cookie_low);
 224	memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
 225
 226	/* some PFs send more queues than we should have so validate that
 227	 * we aren't getting too many queues
 228	 */
 229	if (!err)
 230		iavf_validate_num_queues(adapter);
 231	iavf_vf_parse_hw_config(hw, adapter->vf_res);
 232out_alloc:
 233	kfree(event.msg_buf);
 234out:
 235	return err;
 236}
 237
 238/**
 239 * iavf_configure_queues
 240 * @adapter: adapter structure
 241 *
 242 * Request that the PF set up our (previously allocated) queues.
 243 **/
 244void iavf_configure_queues(struct iavf_adapter *adapter)
 245{
 246	struct virtchnl_vsi_queue_config_info *vqci;
 247	struct virtchnl_queue_pair_info *vqpi;
 248	int pairs = adapter->num_active_queues;
 249	int i, max_frame = IAVF_MAX_RXBUFFER;
 250	size_t len;
 251
 252	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 253		/* bail because we already have a command pending */
 254		dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
 255			adapter->current_op);
 256		return;
 257	}
 258	adapter->current_op = VIRTCHNL_OP_CONFIG_VSI_QUEUES;
 259	len = struct_size(vqci, qpair, pairs);
 260	vqci = kzalloc(len, GFP_KERNEL);
 261	if (!vqci)
 262		return;
 263
 264	/* Limit maximum frame size when jumbo frames is not enabled */
 265	if (!(adapter->flags & IAVF_FLAG_LEGACY_RX) &&
 266	    (adapter->netdev->mtu <= ETH_DATA_LEN))
 267		max_frame = IAVF_RXBUFFER_1536 - NET_IP_ALIGN;
 268
 269	vqci->vsi_id = adapter->vsi_res->vsi_id;
 270	vqci->num_queue_pairs = pairs;
 271	vqpi = vqci->qpair;
 272	/* Size check is not needed here - HW max is 16 queue pairs, and we
 273	 * can fit info for 31 of them into the AQ buffer before it overflows.
 274	 */
 275	for (i = 0; i < pairs; i++) {
 276		vqpi->txq.vsi_id = vqci->vsi_id;
 277		vqpi->txq.queue_id = i;
 278		vqpi->txq.ring_len = adapter->tx_rings[i].count;
 279		vqpi->txq.dma_ring_addr = adapter->tx_rings[i].dma;
 280		vqpi->rxq.vsi_id = vqci->vsi_id;
 281		vqpi->rxq.queue_id = i;
 282		vqpi->rxq.ring_len = adapter->rx_rings[i].count;
 283		vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma;
 284		vqpi->rxq.max_pkt_size = max_frame;
 285		vqpi->rxq.databuffer_size =
 286			ALIGN(adapter->rx_rings[i].rx_buf_len,
 287			      BIT_ULL(IAVF_RXQ_CTX_DBUFF_SHIFT));
 288		vqpi++;
 289	}
 290
 291	adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_QUEUES;
 292	iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
 293			 (u8 *)vqci, len);
 294	kfree(vqci);
 295}
 296
 297/**
 298 * iavf_enable_queues
 299 * @adapter: adapter structure
 300 *
 301 * Request that the PF enable all of our queues.
 302 **/
 303void iavf_enable_queues(struct iavf_adapter *adapter)
 304{
 305	struct virtchnl_queue_select vqs;
 306
 307	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 308		/* bail because we already have a command pending */
 309		dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
 310			adapter->current_op);
 311		return;
 312	}
 313	adapter->current_op = VIRTCHNL_OP_ENABLE_QUEUES;
 314	vqs.vsi_id = adapter->vsi_res->vsi_id;
 315	vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
 316	vqs.rx_queues = vqs.tx_queues;
 317	adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_QUEUES;
 318	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_QUEUES,
 319			 (u8 *)&vqs, sizeof(vqs));
 320}
 321
 322/**
 323 * iavf_disable_queues
 324 * @adapter: adapter structure
 325 *
 326 * Request that the PF disable all of our queues.
 327 **/
 328void iavf_disable_queues(struct iavf_adapter *adapter)
 329{
 330	struct virtchnl_queue_select vqs;
 331
 332	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 333		/* bail because we already have a command pending */
 334		dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
 335			adapter->current_op);
 336		return;
 337	}
 338	adapter->current_op = VIRTCHNL_OP_DISABLE_QUEUES;
 339	vqs.vsi_id = adapter->vsi_res->vsi_id;
 340	vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
 341	vqs.rx_queues = vqs.tx_queues;
 342	adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_QUEUES;
 343	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_QUEUES,
 344			 (u8 *)&vqs, sizeof(vqs));
 345}
 346
 347/**
 348 * iavf_map_queues
 349 * @adapter: adapter structure
 350 *
 351 * Request that the PF map queues to interrupt vectors. Misc causes, including
 352 * admin queue, are always mapped to vector 0.
 353 **/
 354void iavf_map_queues(struct iavf_adapter *adapter)
 355{
 356	struct virtchnl_irq_map_info *vimi;
 357	struct virtchnl_vector_map *vecmap;
 358	struct iavf_q_vector *q_vector;
 359	int v_idx, q_vectors;
 360	size_t len;
 361
 362	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 363		/* bail because we already have a command pending */
 364		dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
 365			adapter->current_op);
 366		return;
 367	}
 368	adapter->current_op = VIRTCHNL_OP_CONFIG_IRQ_MAP;
 369
 370	q_vectors = adapter->num_msix_vectors - NONQ_VECS;
 371
 372	len = struct_size(vimi, vecmap, adapter->num_msix_vectors);
 373	vimi = kzalloc(len, GFP_KERNEL);
 374	if (!vimi)
 375		return;
 376
 377	vimi->num_vectors = adapter->num_msix_vectors;
 378	/* Queue vectors first */
 379	for (v_idx = 0; v_idx < q_vectors; v_idx++) {
 380		q_vector = &adapter->q_vectors[v_idx];
 381		vecmap = &vimi->vecmap[v_idx];
 382
 383		vecmap->vsi_id = adapter->vsi_res->vsi_id;
 384		vecmap->vector_id = v_idx + NONQ_VECS;
 385		vecmap->txq_map = q_vector->ring_mask;
 386		vecmap->rxq_map = q_vector->ring_mask;
 387		vecmap->rxitr_idx = IAVF_RX_ITR;
 388		vecmap->txitr_idx = IAVF_TX_ITR;
 389	}
 390	/* Misc vector last - this is only for AdminQ messages */
 391	vecmap = &vimi->vecmap[v_idx];
 392	vecmap->vsi_id = adapter->vsi_res->vsi_id;
 393	vecmap->vector_id = 0;
 394	vecmap->txq_map = 0;
 395	vecmap->rxq_map = 0;
 396
 397	adapter->aq_required &= ~IAVF_FLAG_AQ_MAP_VECTORS;
 398	iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_IRQ_MAP,
 399			 (u8 *)vimi, len);
 400	kfree(vimi);
 401}
 402
 403/**
 404 * iavf_add_ether_addrs
 405 * @adapter: adapter structure
 406 *
 407 * Request that the PF add one or more addresses to our filters.
 408 **/
 409void iavf_add_ether_addrs(struct iavf_adapter *adapter)
 410{
 411	struct virtchnl_ether_addr_list *veal;
 412	struct iavf_mac_filter *f;
 413	int i = 0, count = 0;
 414	bool more = false;
 415	size_t len;
 416
 417	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 418		/* bail because we already have a command pending */
 419		dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
 420			adapter->current_op);
 421		return;
 422	}
 423
 424	spin_lock_bh(&adapter->mac_vlan_list_lock);
 425
 426	list_for_each_entry(f, &adapter->mac_filter_list, list) {
 427		if (f->add)
 428			count++;
 429	}
 430	if (!count) {
 431		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
 432		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 433		return;
 434	}
 435	adapter->current_op = VIRTCHNL_OP_ADD_ETH_ADDR;
 436
 437	len = struct_size(veal, list, count);
 438	if (len > IAVF_MAX_AQ_BUF_SIZE) {
 439		dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
 440		count = (IAVF_MAX_AQ_BUF_SIZE -
 441			 sizeof(struct virtchnl_ether_addr_list)) /
 442			sizeof(struct virtchnl_ether_addr);
 443		len = struct_size(veal, list, count);
 444		more = true;
 445	}
 446
 447	veal = kzalloc(len, GFP_ATOMIC);
 448	if (!veal) {
 449		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 450		return;
 451	}
 452
 453	veal->vsi_id = adapter->vsi_res->vsi_id;
 454	veal->num_elements = count;
 455	list_for_each_entry(f, &adapter->mac_filter_list, list) {
 456		if (f->add) {
 457			ether_addr_copy(veal->list[i].addr, f->macaddr);
 458			i++;
 459			f->add = false;
 460			if (i == count)
 461				break;
 462		}
 463	}
 464	if (!more)
 465		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
 466
 467	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 468
 469	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_ETH_ADDR, (u8 *)veal, len);
 470	kfree(veal);
 471}
 472
 473/**
 474 * iavf_del_ether_addrs
 475 * @adapter: adapter structure
 476 *
 477 * Request that the PF remove one or more addresses from our filters.
 478 **/
 479void iavf_del_ether_addrs(struct iavf_adapter *adapter)
 480{
 481	struct virtchnl_ether_addr_list *veal;
 482	struct iavf_mac_filter *f, *ftmp;
 483	int i = 0, count = 0;
 484	bool more = false;
 485	size_t len;
 486
 487	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 488		/* bail because we already have a command pending */
 489		dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
 490			adapter->current_op);
 491		return;
 492	}
 493
 494	spin_lock_bh(&adapter->mac_vlan_list_lock);
 495
 496	list_for_each_entry(f, &adapter->mac_filter_list, list) {
 497		if (f->remove)
 498			count++;
 499	}
 500	if (!count) {
 501		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
 502		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 503		return;
 504	}
 505	adapter->current_op = VIRTCHNL_OP_DEL_ETH_ADDR;
 506
 507	len = struct_size(veal, list, count);
 508	if (len > IAVF_MAX_AQ_BUF_SIZE) {
 509		dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
 510		count = (IAVF_MAX_AQ_BUF_SIZE -
 511			 sizeof(struct virtchnl_ether_addr_list)) /
 512			sizeof(struct virtchnl_ether_addr);
 513		len = struct_size(veal, list, count);
 514		more = true;
 515	}
 516	veal = kzalloc(len, GFP_ATOMIC);
 517	if (!veal) {
 518		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 519		return;
 520	}
 521
 522	veal->vsi_id = adapter->vsi_res->vsi_id;
 523	veal->num_elements = count;
 524	list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
 525		if (f->remove) {
 526			ether_addr_copy(veal->list[i].addr, f->macaddr);
 527			i++;
 528			list_del(&f->list);
 529			kfree(f);
 530			if (i == count)
 531				break;
 532		}
 533	}
 534	if (!more)
 535		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
 536
 537	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 538
 539	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_ETH_ADDR, (u8 *)veal, len);
 540	kfree(veal);
 541}
 542
 543/**
 544 * iavf_mac_add_ok
 545 * @adapter: adapter structure
 546 *
 547 * Submit list of filters based on PF response.
 548 **/
 549static void iavf_mac_add_ok(struct iavf_adapter *adapter)
 550{
 551	struct iavf_mac_filter *f, *ftmp;
 552
 553	spin_lock_bh(&adapter->mac_vlan_list_lock);
 554	list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
 555		f->is_new_mac = false;
 556	}
 557	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 558}
 559
 560/**
 561 * iavf_mac_add_reject
 562 * @adapter: adapter structure
 563 *
 564 * Remove filters from list based on PF response.
 565 **/
 566static void iavf_mac_add_reject(struct iavf_adapter *adapter)
 567{
 568	struct net_device *netdev = adapter->netdev;
 569	struct iavf_mac_filter *f, *ftmp;
 570
 571	spin_lock_bh(&adapter->mac_vlan_list_lock);
 572	list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
 573		if (f->remove && ether_addr_equal(f->macaddr, netdev->dev_addr))
 574			f->remove = false;
 575
 576		if (f->is_new_mac) {
 577			list_del(&f->list);
 578			kfree(f);
 579		}
 580	}
 581	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 582}
 583
 584/**
 585 * iavf_add_vlans
 586 * @adapter: adapter structure
 587 *
 588 * Request that the PF add one or more VLAN filters to our VSI.
 589 **/
 590void iavf_add_vlans(struct iavf_adapter *adapter)
 591{
 592	struct virtchnl_vlan_filter_list *vvfl;
 593	int len, i = 0, count = 0;
 594	struct iavf_vlan_filter *f;
 595	bool more = false;
 596
 597	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 598		/* bail because we already have a command pending */
 599		dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
 600			adapter->current_op);
 601		return;
 602	}
 603
 604	spin_lock_bh(&adapter->mac_vlan_list_lock);
 605
 606	list_for_each_entry(f, &adapter->vlan_filter_list, list) {
 607		if (f->add)
 608			count++;
 609	}
 610	if (!count) {
 611		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
 612		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 613		return;
 614	}
 615	adapter->current_op = VIRTCHNL_OP_ADD_VLAN;
 616
 617	len = sizeof(struct virtchnl_vlan_filter_list) +
 618	      (count * sizeof(u16));
 619	if (len > IAVF_MAX_AQ_BUF_SIZE) {
 620		dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
 621		count = (IAVF_MAX_AQ_BUF_SIZE -
 622			 sizeof(struct virtchnl_vlan_filter_list)) /
 623			sizeof(u16);
 624		len = sizeof(struct virtchnl_vlan_filter_list) +
 625		      (count * sizeof(u16));
 626		more = true;
 627	}
 628	vvfl = kzalloc(len, GFP_ATOMIC);
 629	if (!vvfl) {
 630		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 631		return;
 632	}
 633
 634	vvfl->vsi_id = adapter->vsi_res->vsi_id;
 635	vvfl->num_elements = count;
 636	list_for_each_entry(f, &adapter->vlan_filter_list, list) {
 637		if (f->add) {
 638			vvfl->vlan_id[i] = f->vlan;
 639			i++;
 640			f->add = false;
 641			if (i == count)
 642				break;
 643		}
 644	}
 645	if (!more)
 646		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
 647
 648	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 649
 650	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
 651	kfree(vvfl);
 652}
 653
 654/**
 655 * iavf_del_vlans
 656 * @adapter: adapter structure
 657 *
 658 * Request that the PF remove one or more VLAN filters from our VSI.
 659 **/
 660void iavf_del_vlans(struct iavf_adapter *adapter)
 661{
 662	struct virtchnl_vlan_filter_list *vvfl;
 663	struct iavf_vlan_filter *f, *ftmp;
 664	int len, i = 0, count = 0;
 665	bool more = false;
 666
 667	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 668		/* bail because we already have a command pending */
 669		dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
 670			adapter->current_op);
 671		return;
 672	}
 673
 674	spin_lock_bh(&adapter->mac_vlan_list_lock);
 675
 676	list_for_each_entry(f, &adapter->vlan_filter_list, list) {
 677		if (f->remove)
 678			count++;
 679	}
 680	if (!count) {
 681		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
 682		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 683		return;
 684	}
 685	adapter->current_op = VIRTCHNL_OP_DEL_VLAN;
 686
 687	len = sizeof(struct virtchnl_vlan_filter_list) +
 688	      (count * sizeof(u16));
 689	if (len > IAVF_MAX_AQ_BUF_SIZE) {
 690		dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
 691		count = (IAVF_MAX_AQ_BUF_SIZE -
 692			 sizeof(struct virtchnl_vlan_filter_list)) /
 693			sizeof(u16);
 694		len = sizeof(struct virtchnl_vlan_filter_list) +
 695		      (count * sizeof(u16));
 696		more = true;
 697	}
 698	vvfl = kzalloc(len, GFP_ATOMIC);
 699	if (!vvfl) {
 700		spin_unlock_bh(&adapter->mac_vlan_list_lock);
 701		return;
 702	}
 703
 704	vvfl->vsi_id = adapter->vsi_res->vsi_id;
 705	vvfl->num_elements = count;
 706	list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
 707		if (f->remove) {
 708			vvfl->vlan_id[i] = f->vlan;
 709			i++;
 710			list_del(&f->list);
 711			kfree(f);
 712			if (i == count)
 713				break;
 714		}
 715	}
 716	if (!more)
 717		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
 718
 719	spin_unlock_bh(&adapter->mac_vlan_list_lock);
 720
 721	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
 722	kfree(vvfl);
 723}
 724
 725/**
 726 * iavf_set_promiscuous
 727 * @adapter: adapter structure
 728 * @flags: bitmask to control unicast/multicast promiscuous.
 729 *
 730 * Request that the PF enable promiscuous mode for our VSI.
 731 **/
 732void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags)
 733{
 734	struct virtchnl_promisc_info vpi;
 735	int promisc_all;
 736
 737	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 738		/* bail because we already have a command pending */
 739		dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
 740			adapter->current_op);
 741		return;
 742	}
 743
 744	promisc_all = FLAG_VF_UNICAST_PROMISC |
 745		      FLAG_VF_MULTICAST_PROMISC;
 746	if ((flags & promisc_all) == promisc_all) {
 747		adapter->flags |= IAVF_FLAG_PROMISC_ON;
 748		adapter->aq_required &= ~IAVF_FLAG_AQ_REQUEST_PROMISC;
 749		dev_info(&adapter->pdev->dev, "Entering promiscuous mode\n");
 750	}
 751
 752	if (flags & FLAG_VF_MULTICAST_PROMISC) {
 753		adapter->flags |= IAVF_FLAG_ALLMULTI_ON;
 754		adapter->aq_required &= ~IAVF_FLAG_AQ_REQUEST_ALLMULTI;
 755		dev_info(&adapter->pdev->dev, "Entering multicast promiscuous mode\n");
 756	}
 757
 758	if (!flags) {
 759		adapter->flags &= ~(IAVF_FLAG_PROMISC_ON |
 760				    IAVF_FLAG_ALLMULTI_ON);
 761		adapter->aq_required &= ~(IAVF_FLAG_AQ_RELEASE_PROMISC |
 762					  IAVF_FLAG_AQ_RELEASE_ALLMULTI);
 763		dev_info(&adapter->pdev->dev, "Leaving promiscuous mode\n");
 764	}
 765
 766	adapter->current_op = VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
 767	vpi.vsi_id = adapter->vsi_res->vsi_id;
 768	vpi.flags = flags;
 769	iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
 770			 (u8 *)&vpi, sizeof(vpi));
 771}
 772
 773/**
 774 * iavf_request_stats
 775 * @adapter: adapter structure
 776 *
 777 * Request VSI statistics from PF.
 778 **/
 779void iavf_request_stats(struct iavf_adapter *adapter)
 780{
 781	struct virtchnl_queue_select vqs;
 782
 783	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 784		/* no error message, this isn't crucial */
 785		return;
 786	}
 787	adapter->current_op = VIRTCHNL_OP_GET_STATS;
 788	vqs.vsi_id = adapter->vsi_res->vsi_id;
 789	/* queue maps are ignored for this message - only the vsi is used */
 790	if (iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_STATS, (u8 *)&vqs,
 791			     sizeof(vqs)))
 792		/* if the request failed, don't lock out others */
 793		adapter->current_op = VIRTCHNL_OP_UNKNOWN;
 794}
 795
 796/**
 797 * iavf_get_hena
 798 * @adapter: adapter structure
 799 *
 800 * Request hash enable capabilities from PF
 801 **/
 802void iavf_get_hena(struct iavf_adapter *adapter)
 803{
 804	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 805		/* bail because we already have a command pending */
 806		dev_err(&adapter->pdev->dev, "Cannot get RSS hash capabilities, command %d pending\n",
 807			adapter->current_op);
 808		return;
 809	}
 810	adapter->current_op = VIRTCHNL_OP_GET_RSS_HENA_CAPS;
 811	adapter->aq_required &= ~IAVF_FLAG_AQ_GET_HENA;
 812	iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_RSS_HENA_CAPS, NULL, 0);
 813}
 814
 815/**
 816 * iavf_set_hena
 817 * @adapter: adapter structure
 818 *
 819 * Request the PF to set our RSS hash capabilities
 820 **/
 821void iavf_set_hena(struct iavf_adapter *adapter)
 822{
 823	struct virtchnl_rss_hena vrh;
 824
 825	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 826		/* bail because we already have a command pending */
 827		dev_err(&adapter->pdev->dev, "Cannot set RSS hash enable, command %d pending\n",
 828			adapter->current_op);
 829		return;
 830	}
 831	vrh.hena = adapter->hena;
 832	adapter->current_op = VIRTCHNL_OP_SET_RSS_HENA;
 833	adapter->aq_required &= ~IAVF_FLAG_AQ_SET_HENA;
 834	iavf_send_pf_msg(adapter, VIRTCHNL_OP_SET_RSS_HENA, (u8 *)&vrh,
 835			 sizeof(vrh));
 836}
 837
 838/**
 839 * iavf_set_rss_key
 840 * @adapter: adapter structure
 841 *
 842 * Request the PF to set our RSS hash key
 843 **/
 844void iavf_set_rss_key(struct iavf_adapter *adapter)
 845{
 846	struct virtchnl_rss_key *vrk;
 847	int len;
 848
 849	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 850		/* bail because we already have a command pending */
 851		dev_err(&adapter->pdev->dev, "Cannot set RSS key, command %d pending\n",
 852			adapter->current_op);
 853		return;
 854	}
 855	len = sizeof(struct virtchnl_rss_key) +
 856	      (adapter->rss_key_size * sizeof(u8)) - 1;
 857	vrk = kzalloc(len, GFP_KERNEL);
 858	if (!vrk)
 859		return;
 860	vrk->vsi_id = adapter->vsi.id;
 861	vrk->key_len = adapter->rss_key_size;
 862	memcpy(vrk->key, adapter->rss_key, adapter->rss_key_size);
 863
 864	adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_KEY;
 865	adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_KEY;
 866	iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_KEY, (u8 *)vrk, len);
 867	kfree(vrk);
 868}
 869
 870/**
 871 * iavf_set_rss_lut
 872 * @adapter: adapter structure
 873 *
 874 * Request the PF to set our RSS lookup table
 875 **/
 876void iavf_set_rss_lut(struct iavf_adapter *adapter)
 877{
 878	struct virtchnl_rss_lut *vrl;
 879	int len;
 880
 881	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 882		/* bail because we already have a command pending */
 883		dev_err(&adapter->pdev->dev, "Cannot set RSS LUT, command %d pending\n",
 884			adapter->current_op);
 885		return;
 886	}
 887	len = sizeof(struct virtchnl_rss_lut) +
 888	      (adapter->rss_lut_size * sizeof(u8)) - 1;
 889	vrl = kzalloc(len, GFP_KERNEL);
 890	if (!vrl)
 891		return;
 892	vrl->vsi_id = adapter->vsi.id;
 893	vrl->lut_entries = adapter->rss_lut_size;
 894	memcpy(vrl->lut, adapter->rss_lut, adapter->rss_lut_size);
 895	adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_LUT;
 896	adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_LUT;
 897	iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_LUT, (u8 *)vrl, len);
 898	kfree(vrl);
 899}
 900
 901/**
 902 * iavf_enable_vlan_stripping
 903 * @adapter: adapter structure
 904 *
 905 * Request VLAN header stripping to be enabled
 906 **/
 907void iavf_enable_vlan_stripping(struct iavf_adapter *adapter)
 908{
 909	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 910		/* bail because we already have a command pending */
 911		dev_err(&adapter->pdev->dev, "Cannot enable stripping, command %d pending\n",
 912			adapter->current_op);
 913		return;
 914	}
 915	adapter->current_op = VIRTCHNL_OP_ENABLE_VLAN_STRIPPING;
 916	adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING;
 917	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, NULL, 0);
 918}
 919
 920/**
 921 * iavf_disable_vlan_stripping
 922 * @adapter: adapter structure
 923 *
 924 * Request VLAN header stripping to be disabled
 925 **/
 926void iavf_disable_vlan_stripping(struct iavf_adapter *adapter)
 927{
 928	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
 929		/* bail because we already have a command pending */
 930		dev_err(&adapter->pdev->dev, "Cannot disable stripping, command %d pending\n",
 931			adapter->current_op);
 932		return;
 933	}
 934	adapter->current_op = VIRTCHNL_OP_DISABLE_VLAN_STRIPPING;
 935	adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING;
 936	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, NULL, 0);
 937}
 938
 939#define IAVF_MAX_SPEED_STRLEN	13
 940
 941/**
 942 * iavf_print_link_message - print link up or down
 943 * @adapter: adapter structure
 944 *
 945 * Log a message telling the world of our wonderous link status
 946 */
 947static void iavf_print_link_message(struct iavf_adapter *adapter)
 948{
 949	struct net_device *netdev = adapter->netdev;
 950	int link_speed_mbps;
 951	char *speed;
 952
 953	if (!adapter->link_up) {
 954		netdev_info(netdev, "NIC Link is Down\n");
 955		return;
 956	}
 957
 958	speed = kzalloc(IAVF_MAX_SPEED_STRLEN, GFP_KERNEL);
 959	if (!speed)
 960		return;
 961
 962	if (ADV_LINK_SUPPORT(adapter)) {
 963		link_speed_mbps = adapter->link_speed_mbps;
 964		goto print_link_msg;
 965	}
 966
 967	switch (adapter->link_speed) {
 968	case VIRTCHNL_LINK_SPEED_40GB:
 969		link_speed_mbps = SPEED_40000;
 970		break;
 971	case VIRTCHNL_LINK_SPEED_25GB:
 972		link_speed_mbps = SPEED_25000;
 973		break;
 974	case VIRTCHNL_LINK_SPEED_20GB:
 975		link_speed_mbps = SPEED_20000;
 976		break;
 977	case VIRTCHNL_LINK_SPEED_10GB:
 978		link_speed_mbps = SPEED_10000;
 979		break;
 980	case VIRTCHNL_LINK_SPEED_5GB:
 981		link_speed_mbps = SPEED_5000;
 982		break;
 983	case VIRTCHNL_LINK_SPEED_2_5GB:
 984		link_speed_mbps = SPEED_2500;
 985		break;
 986	case VIRTCHNL_LINK_SPEED_1GB:
 987		link_speed_mbps = SPEED_1000;
 988		break;
 989	case VIRTCHNL_LINK_SPEED_100MB:
 990		link_speed_mbps = SPEED_100;
 991		break;
 992	default:
 993		link_speed_mbps = SPEED_UNKNOWN;
 994		break;
 995	}
 996
 997print_link_msg:
 998	if (link_speed_mbps > SPEED_1000) {
 999		if (link_speed_mbps == SPEED_2500)
1000			snprintf(speed, IAVF_MAX_SPEED_STRLEN, "2.5 Gbps");
1001		else
1002			/* convert to Gbps inline */
1003			snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%d %s",
1004				 link_speed_mbps / 1000, "Gbps");
1005	} else if (link_speed_mbps == SPEED_UNKNOWN) {
1006		snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%s", "Unknown Mbps");
1007	} else {
1008		snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%u %s",
1009			 link_speed_mbps, "Mbps");
1010	}
1011
1012	netdev_info(netdev, "NIC Link is Up Speed is %s Full Duplex\n", speed);
1013	kfree(speed);
1014}
1015
1016/**
1017 * iavf_get_vpe_link_status
1018 * @adapter: adapter structure
1019 * @vpe: virtchnl_pf_event structure
1020 *
1021 * Helper function for determining the link status
1022 **/
1023static bool
1024iavf_get_vpe_link_status(struct iavf_adapter *adapter,
1025			 struct virtchnl_pf_event *vpe)
1026{
1027	if (ADV_LINK_SUPPORT(adapter))
1028		return vpe->event_data.link_event_adv.link_status;
1029	else
1030		return vpe->event_data.link_event.link_status;
1031}
1032
1033/**
1034 * iavf_set_adapter_link_speed_from_vpe
1035 * @adapter: adapter structure for which we are setting the link speed
1036 * @vpe: virtchnl_pf_event structure that contains the link speed we are setting
1037 *
1038 * Helper function for setting iavf_adapter link speed
1039 **/
1040static void
1041iavf_set_adapter_link_speed_from_vpe(struct iavf_adapter *adapter,
1042				     struct virtchnl_pf_event *vpe)
1043{
1044	if (ADV_LINK_SUPPORT(adapter))
1045		adapter->link_speed_mbps =
1046			vpe->event_data.link_event_adv.link_speed;
1047	else
1048		adapter->link_speed = vpe->event_data.link_event.link_speed;
1049}
1050
1051/**
1052 * iavf_enable_channels
1053 * @adapter: adapter structure
1054 *
1055 * Request that the PF enable channels as specified by
1056 * the user via tc tool.
1057 **/
1058void iavf_enable_channels(struct iavf_adapter *adapter)
1059{
1060	struct virtchnl_tc_info *vti = NULL;
1061	size_t len;
1062	int i;
1063
1064	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1065		/* bail because we already have a command pending */
1066		dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1067			adapter->current_op);
1068		return;
1069	}
1070
1071	len = struct_size(vti, list, adapter->num_tc - 1);
1072	vti = kzalloc(len, GFP_KERNEL);
1073	if (!vti)
1074		return;
1075	vti->num_tc = adapter->num_tc;
1076	for (i = 0; i < vti->num_tc; i++) {
1077		vti->list[i].count = adapter->ch_config.ch_info[i].count;
1078		vti->list[i].offset = adapter->ch_config.ch_info[i].offset;
1079		vti->list[i].pad = 0;
1080		vti->list[i].max_tx_rate =
1081				adapter->ch_config.ch_info[i].max_tx_rate;
1082	}
1083
1084	adapter->ch_config.state = __IAVF_TC_RUNNING;
1085	adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1086	adapter->current_op = VIRTCHNL_OP_ENABLE_CHANNELS;
1087	adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_CHANNELS;
1088	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_CHANNELS, (u8 *)vti, len);
1089	kfree(vti);
1090}
1091
1092/**
1093 * iavf_disable_channels
1094 * @adapter: adapter structure
1095 *
1096 * Request that the PF disable channels that are configured
1097 **/
1098void iavf_disable_channels(struct iavf_adapter *adapter)
1099{
1100	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1101		/* bail because we already have a command pending */
1102		dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1103			adapter->current_op);
1104		return;
1105	}
1106
1107	adapter->ch_config.state = __IAVF_TC_INVALID;
1108	adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1109	adapter->current_op = VIRTCHNL_OP_DISABLE_CHANNELS;
1110	adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_CHANNELS;
1111	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_CHANNELS, NULL, 0);
1112}
1113
1114/**
1115 * iavf_print_cloud_filter
1116 * @adapter: adapter structure
1117 * @f: cloud filter to print
1118 *
1119 * Print the cloud filter
1120 **/
1121static void iavf_print_cloud_filter(struct iavf_adapter *adapter,
1122				    struct virtchnl_filter *f)
1123{
1124	switch (f->flow_type) {
1125	case VIRTCHNL_TCP_V4_FLOW:
1126		dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI4 src_ip %pI4 dst_port %hu src_port %hu\n",
1127			 &f->data.tcp_spec.dst_mac,
1128			 &f->data.tcp_spec.src_mac,
1129			 ntohs(f->data.tcp_spec.vlan_id),
1130			 &f->data.tcp_spec.dst_ip[0],
1131			 &f->data.tcp_spec.src_ip[0],
1132			 ntohs(f->data.tcp_spec.dst_port),
1133			 ntohs(f->data.tcp_spec.src_port));
1134		break;
1135	case VIRTCHNL_TCP_V6_FLOW:
1136		dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI6 src_ip %pI6 dst_port %hu src_port %hu\n",
1137			 &f->data.tcp_spec.dst_mac,
1138			 &f->data.tcp_spec.src_mac,
1139			 ntohs(f->data.tcp_spec.vlan_id),
1140			 &f->data.tcp_spec.dst_ip,
1141			 &f->data.tcp_spec.src_ip,
1142			 ntohs(f->data.tcp_spec.dst_port),
1143			 ntohs(f->data.tcp_spec.src_port));
1144		break;
1145	}
1146}
1147
1148/**
1149 * iavf_add_cloud_filter
1150 * @adapter: adapter structure
1151 *
1152 * Request that the PF add cloud filters as specified
1153 * by the user via tc tool.
1154 **/
1155void iavf_add_cloud_filter(struct iavf_adapter *adapter)
1156{
1157	struct iavf_cloud_filter *cf;
1158	struct virtchnl_filter *f;
1159	int len = 0, count = 0;
1160
1161	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1162		/* bail because we already have a command pending */
1163		dev_err(&adapter->pdev->dev, "Cannot add cloud filter, command %d pending\n",
1164			adapter->current_op);
1165		return;
1166	}
1167	list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1168		if (cf->add) {
1169			count++;
1170			break;
1171		}
1172	}
1173	if (!count) {
1174		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_CLOUD_FILTER;
1175		return;
1176	}
1177	adapter->current_op = VIRTCHNL_OP_ADD_CLOUD_FILTER;
1178
1179	len = sizeof(struct virtchnl_filter);
1180	f = kzalloc(len, GFP_KERNEL);
1181	if (!f)
1182		return;
1183
1184	list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1185		if (cf->add) {
1186			memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1187			cf->add = false;
1188			cf->state = __IAVF_CF_ADD_PENDING;
1189			iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_CLOUD_FILTER,
1190					 (u8 *)f, len);
1191		}
1192	}
1193	kfree(f);
1194}
1195
1196/**
1197 * iavf_del_cloud_filter
1198 * @adapter: adapter structure
1199 *
1200 * Request that the PF delete cloud filters as specified
1201 * by the user via tc tool.
1202 **/
1203void iavf_del_cloud_filter(struct iavf_adapter *adapter)
1204{
1205	struct iavf_cloud_filter *cf, *cftmp;
1206	struct virtchnl_filter *f;
1207	int len = 0, count = 0;
1208
1209	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1210		/* bail because we already have a command pending */
1211		dev_err(&adapter->pdev->dev, "Cannot remove cloud filter, command %d pending\n",
1212			adapter->current_op);
1213		return;
1214	}
1215	list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1216		if (cf->del) {
1217			count++;
1218			break;
1219		}
1220	}
1221	if (!count) {
1222		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
1223		return;
1224	}
1225	adapter->current_op = VIRTCHNL_OP_DEL_CLOUD_FILTER;
1226
1227	len = sizeof(struct virtchnl_filter);
1228	f = kzalloc(len, GFP_KERNEL);
1229	if (!f)
1230		return;
1231
1232	list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list, list) {
1233		if (cf->del) {
1234			memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1235			cf->del = false;
1236			cf->state = __IAVF_CF_DEL_PENDING;
1237			iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_CLOUD_FILTER,
1238					 (u8 *)f, len);
1239		}
1240	}
1241	kfree(f);
1242}
1243
1244/**
1245 * iavf_add_fdir_filter
1246 * @adapter: the VF adapter structure
1247 *
1248 * Request that the PF add Flow Director filters as specified
1249 * by the user via ethtool.
1250 **/
1251void iavf_add_fdir_filter(struct iavf_adapter *adapter)
1252{
1253	struct iavf_fdir_fltr *fdir;
1254	struct virtchnl_fdir_add *f;
1255	bool process_fltr = false;
1256	int len;
1257
1258	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1259		/* bail because we already have a command pending */
1260		dev_err(&adapter->pdev->dev, "Cannot add Flow Director filter, command %d pending\n",
1261			adapter->current_op);
1262		return;
1263	}
1264
1265	len = sizeof(struct virtchnl_fdir_add);
1266	f = kzalloc(len, GFP_KERNEL);
1267	if (!f)
1268		return;
1269
1270	spin_lock_bh(&adapter->fdir_fltr_lock);
1271	list_for_each_entry(fdir, &adapter->fdir_list_head, list) {
1272		if (fdir->state == IAVF_FDIR_FLTR_ADD_REQUEST) {
1273			process_fltr = true;
1274			fdir->state = IAVF_FDIR_FLTR_ADD_PENDING;
1275			memcpy(f, &fdir->vc_add_msg, len);
1276			break;
1277		}
1278	}
1279	spin_unlock_bh(&adapter->fdir_fltr_lock);
1280
1281	if (!process_fltr) {
1282		/* prevent iavf_add_fdir_filter() from being called when there
1283		 * are no filters to add
1284		 */
1285		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_FDIR_FILTER;
1286		kfree(f);
1287		return;
1288	}
1289	adapter->current_op = VIRTCHNL_OP_ADD_FDIR_FILTER;
1290	iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_FDIR_FILTER, (u8 *)f, len);
1291	kfree(f);
1292}
1293
1294/**
1295 * iavf_del_fdir_filter
1296 * @adapter: the VF adapter structure
1297 *
1298 * Request that the PF delete Flow Director filters as specified
1299 * by the user via ethtool.
1300 **/
1301void iavf_del_fdir_filter(struct iavf_adapter *adapter)
1302{
1303	struct iavf_fdir_fltr *fdir;
1304	struct virtchnl_fdir_del f;
1305	bool process_fltr = false;
1306	int len;
1307
1308	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1309		/* bail because we already have a command pending */
1310		dev_err(&adapter->pdev->dev, "Cannot remove Flow Director filter, command %d pending\n",
1311			adapter->current_op);
1312		return;
1313	}
1314
1315	len = sizeof(struct virtchnl_fdir_del);
1316
1317	spin_lock_bh(&adapter->fdir_fltr_lock);
1318	list_for_each_entry(fdir, &adapter->fdir_list_head, list) {
1319		if (fdir->state == IAVF_FDIR_FLTR_DEL_REQUEST) {
1320			process_fltr = true;
1321			memset(&f, 0, len);
1322			f.vsi_id = fdir->vc_add_msg.vsi_id;
1323			f.flow_id = fdir->flow_id;
1324			fdir->state = IAVF_FDIR_FLTR_DEL_PENDING;
1325			break;
1326		}
1327	}
1328	spin_unlock_bh(&adapter->fdir_fltr_lock);
1329
1330	if (!process_fltr) {
1331		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_FDIR_FILTER;
1332		return;
1333	}
1334
1335	adapter->current_op = VIRTCHNL_OP_DEL_FDIR_FILTER;
1336	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_FDIR_FILTER, (u8 *)&f, len);
1337}
1338
1339/**
1340 * iavf_add_adv_rss_cfg
1341 * @adapter: the VF adapter structure
1342 *
1343 * Request that the PF add RSS configuration as specified
1344 * by the user via ethtool.
1345 **/
1346void iavf_add_adv_rss_cfg(struct iavf_adapter *adapter)
1347{
1348	struct virtchnl_rss_cfg *rss_cfg;
1349	struct iavf_adv_rss *rss;
1350	bool process_rss = false;
1351	int len;
1352
1353	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1354		/* bail because we already have a command pending */
1355		dev_err(&adapter->pdev->dev, "Cannot add RSS configuration, command %d pending\n",
1356			adapter->current_op);
1357		return;
1358	}
1359
1360	len = sizeof(struct virtchnl_rss_cfg);
1361	rss_cfg = kzalloc(len, GFP_KERNEL);
1362	if (!rss_cfg)
1363		return;
1364
1365	spin_lock_bh(&adapter->adv_rss_lock);
1366	list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
1367		if (rss->state == IAVF_ADV_RSS_ADD_REQUEST) {
1368			process_rss = true;
1369			rss->state = IAVF_ADV_RSS_ADD_PENDING;
1370			memcpy(rss_cfg, &rss->cfg_msg, len);
1371			iavf_print_adv_rss_cfg(adapter, rss,
1372					       "Input set change for",
1373					       "is pending");
1374			break;
1375		}
1376	}
1377	spin_unlock_bh(&adapter->adv_rss_lock);
1378
1379	if (process_rss) {
1380		adapter->current_op = VIRTCHNL_OP_ADD_RSS_CFG;
1381		iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_RSS_CFG,
1382				 (u8 *)rss_cfg, len);
1383	} else {
1384		adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_ADV_RSS_CFG;
1385	}
1386
1387	kfree(rss_cfg);
1388}
1389
1390/**
1391 * iavf_del_adv_rss_cfg
1392 * @adapter: the VF adapter structure
1393 *
1394 * Request that the PF delete RSS configuration as specified
1395 * by the user via ethtool.
1396 **/
1397void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter)
1398{
1399	struct virtchnl_rss_cfg *rss_cfg;
1400	struct iavf_adv_rss *rss;
1401	bool process_rss = false;
1402	int len;
1403
1404	if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1405		/* bail because we already have a command pending */
1406		dev_err(&adapter->pdev->dev, "Cannot remove RSS configuration, command %d pending\n",
1407			adapter->current_op);
1408		return;
1409	}
1410
1411	len = sizeof(struct virtchnl_rss_cfg);
1412	rss_cfg = kzalloc(len, GFP_KERNEL);
1413	if (!rss_cfg)
1414		return;
1415
1416	spin_lock_bh(&adapter->adv_rss_lock);
1417	list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
1418		if (rss->state == IAVF_ADV_RSS_DEL_REQUEST) {
1419			process_rss = true;
1420			rss->state = IAVF_ADV_RSS_DEL_PENDING;
1421			memcpy(rss_cfg, &rss->cfg_msg, len);
1422			break;
1423		}
1424	}
1425	spin_unlock_bh(&adapter->adv_rss_lock);
1426
1427	if (process_rss) {
1428		adapter->current_op = VIRTCHNL_OP_DEL_RSS_CFG;
1429		iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_RSS_CFG,
1430				 (u8 *)rss_cfg, len);
1431	} else {
1432		adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_ADV_RSS_CFG;
1433	}
1434
1435	kfree(rss_cfg);
1436}
1437
1438/**
1439 * iavf_request_reset
1440 * @adapter: adapter structure
1441 *
1442 * Request that the PF reset this VF. No response is expected.
1443 **/
1444void iavf_request_reset(struct iavf_adapter *adapter)
1445{
1446	/* Don't check CURRENT_OP - this is always higher priority */
1447	iavf_send_pf_msg(adapter, VIRTCHNL_OP_RESET_VF, NULL, 0);
1448	adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1449}
1450
1451/**
1452 * iavf_virtchnl_completion
1453 * @adapter: adapter structure
1454 * @v_opcode: opcode sent by PF
1455 * @v_retval: retval sent by PF
1456 * @msg: message sent by PF
1457 * @msglen: message length
1458 *
1459 * Asynchronous completion function for admin queue messages. Rather than busy
1460 * wait, we fire off our requests and assume that no errors will be returned.
1461 * This function handles the reply messages.
1462 **/
1463void iavf_virtchnl_completion(struct iavf_adapter *adapter,
1464			      enum virtchnl_ops v_opcode,
1465			      enum iavf_status v_retval, u8 *msg, u16 msglen)
1466{
1467	struct net_device *netdev = adapter->netdev;
1468
1469	if (v_opcode == VIRTCHNL_OP_EVENT) {
1470		struct virtchnl_pf_event *vpe =
1471			(struct virtchnl_pf_event *)msg;
1472		bool link_up = iavf_get_vpe_link_status(adapter, vpe);
1473
1474		switch (vpe->event) {
1475		case VIRTCHNL_EVENT_LINK_CHANGE:
1476			iavf_set_adapter_link_speed_from_vpe(adapter, vpe);
1477
1478			/* we've already got the right link status, bail */
1479			if (adapter->link_up == link_up)
1480				break;
1481
1482			if (link_up) {
1483				/* If we get link up message and start queues
1484				 * before our queues are configured it will
1485				 * trigger a TX hang. In that case, just ignore
1486				 * the link status message,we'll get another one
1487				 * after we enable queues and actually prepared
1488				 * to send traffic.
1489				 */
1490				if (adapter->state != __IAVF_RUNNING)
1491					break;
1492
1493				/* For ADq enabled VF, we reconfigure VSIs and
1494				 * re-allocate queues. Hence wait till all
1495				 * queues are enabled.
1496				 */
1497				if (adapter->flags &
1498				    IAVF_FLAG_QUEUES_DISABLED)
1499					break;
1500			}
1501
1502			adapter->link_up = link_up;
1503			if (link_up) {
1504				netif_tx_start_all_queues(netdev);
1505				netif_carrier_on(netdev);
1506			} else {
1507				netif_tx_stop_all_queues(netdev);
1508				netif_carrier_off(netdev);
1509			}
1510			iavf_print_link_message(adapter);
1511			break;
1512		case VIRTCHNL_EVENT_RESET_IMPENDING:
1513			dev_info(&adapter->pdev->dev, "Reset warning received from the PF\n");
1514			if (!(adapter->flags & IAVF_FLAG_RESET_PENDING)) {
1515				adapter->flags |= IAVF_FLAG_RESET_PENDING;
1516				dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
1517				queue_work(iavf_wq, &adapter->reset_task);
1518			}
1519			break;
1520		default:
1521			dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
1522				vpe->event);
1523			break;
1524		}
1525		return;
1526	}
1527	if (v_retval) {
1528		switch (v_opcode) {
1529		case VIRTCHNL_OP_ADD_VLAN:
1530			dev_err(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
1531				iavf_stat_str(&adapter->hw, v_retval));
1532			break;
1533		case VIRTCHNL_OP_ADD_ETH_ADDR:
1534			dev_err(&adapter->pdev->dev, "Failed to add MAC filter, error %s\n",
1535				iavf_stat_str(&adapter->hw, v_retval));
1536			iavf_mac_add_reject(adapter);
1537			/* restore administratively set MAC address */
1538			ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
1539			break;
1540		case VIRTCHNL_OP_DEL_VLAN:
1541			dev_err(&adapter->pdev->dev, "Failed to delete VLAN filter, error %s\n",
1542				iavf_stat_str(&adapter->hw, v_retval));
1543			break;
1544		case VIRTCHNL_OP_DEL_ETH_ADDR:
1545			dev_err(&adapter->pdev->dev, "Failed to delete MAC filter, error %s\n",
1546				iavf_stat_str(&adapter->hw, v_retval));
1547			break;
1548		case VIRTCHNL_OP_ENABLE_CHANNELS:
1549			dev_err(&adapter->pdev->dev, "Failed to configure queue channels, error %s\n",
1550				iavf_stat_str(&adapter->hw, v_retval));
1551			adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1552			adapter->ch_config.state = __IAVF_TC_INVALID;
1553			netdev_reset_tc(netdev);
1554			netif_tx_start_all_queues(netdev);
1555			break;
1556		case VIRTCHNL_OP_DISABLE_CHANNELS:
1557			dev_err(&adapter->pdev->dev, "Failed to disable queue channels, error %s\n",
1558				iavf_stat_str(&adapter->hw, v_retval));
1559			adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1560			adapter->ch_config.state = __IAVF_TC_RUNNING;
1561			netif_tx_start_all_queues(netdev);
1562			break;
1563		case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
1564			struct iavf_cloud_filter *cf, *cftmp;
1565
1566			list_for_each_entry_safe(cf, cftmp,
1567						 &adapter->cloud_filter_list,
1568						 list) {
1569				if (cf->state == __IAVF_CF_ADD_PENDING) {
1570					cf->state = __IAVF_CF_INVALID;
1571					dev_info(&adapter->pdev->dev, "Failed to add cloud filter, error %s\n",
1572						 iavf_stat_str(&adapter->hw,
1573							       v_retval));
1574					iavf_print_cloud_filter(adapter,
1575								&cf->f);
1576					list_del(&cf->list);
1577					kfree(cf);
1578					adapter->num_cloud_filters--;
1579				}
1580			}
1581			}
1582			break;
1583		case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
1584			struct iavf_cloud_filter *cf;
1585
1586			list_for_each_entry(cf, &adapter->cloud_filter_list,
1587					    list) {
1588				if (cf->state == __IAVF_CF_DEL_PENDING) {
1589					cf->state = __IAVF_CF_ACTIVE;
1590					dev_info(&adapter->pdev->dev, "Failed to del cloud filter, error %s\n",
1591						 iavf_stat_str(&adapter->hw,
1592							       v_retval));
1593					iavf_print_cloud_filter(adapter,
1594								&cf->f);
1595				}
1596			}
1597			}
1598			break;
1599		case VIRTCHNL_OP_ADD_FDIR_FILTER: {
1600			struct iavf_fdir_fltr *fdir, *fdir_tmp;
1601
1602			spin_lock_bh(&adapter->fdir_fltr_lock);
1603			list_for_each_entry_safe(fdir, fdir_tmp,
1604						 &adapter->fdir_list_head,
1605						 list) {
1606				if (fdir->state == IAVF_FDIR_FLTR_ADD_PENDING) {
1607					dev_info(&adapter->pdev->dev, "Failed to add Flow Director filter, error %s\n",
1608						 iavf_stat_str(&adapter->hw,
1609							       v_retval));
1610					iavf_print_fdir_fltr(adapter, fdir);
1611					if (msglen)
1612						dev_err(&adapter->pdev->dev,
1613							"%s\n", msg);
1614					list_del(&fdir->list);
1615					kfree(fdir);
1616					adapter->fdir_active_fltr--;
1617				}
1618			}
1619			spin_unlock_bh(&adapter->fdir_fltr_lock);
1620			}
1621			break;
1622		case VIRTCHNL_OP_DEL_FDIR_FILTER: {
1623			struct iavf_fdir_fltr *fdir;
1624
1625			spin_lock_bh(&adapter->fdir_fltr_lock);
1626			list_for_each_entry(fdir, &adapter->fdir_list_head,
1627					    list) {
1628				if (fdir->state == IAVF_FDIR_FLTR_DEL_PENDING) {
1629					fdir->state = IAVF_FDIR_FLTR_ACTIVE;
1630					dev_info(&adapter->pdev->dev, "Failed to del Flow Director filter, error %s\n",
1631						 iavf_stat_str(&adapter->hw,
1632							       v_retval));
1633					iavf_print_fdir_fltr(adapter, fdir);
1634				}
1635			}
1636			spin_unlock_bh(&adapter->fdir_fltr_lock);
1637			}
1638			break;
1639		case VIRTCHNL_OP_ADD_RSS_CFG: {
1640			struct iavf_adv_rss *rss, *rss_tmp;
1641
1642			spin_lock_bh(&adapter->adv_rss_lock);
1643			list_for_each_entry_safe(rss, rss_tmp,
1644						 &adapter->adv_rss_list_head,
1645						 list) {
1646				if (rss->state == IAVF_ADV_RSS_ADD_PENDING) {
1647					iavf_print_adv_rss_cfg(adapter, rss,
1648							       "Failed to change the input set for",
1649							       NULL);
1650					list_del(&rss->list);
1651					kfree(rss);
1652				}
1653			}
1654			spin_unlock_bh(&adapter->adv_rss_lock);
1655			}
1656			break;
1657		case VIRTCHNL_OP_DEL_RSS_CFG: {
1658			struct iavf_adv_rss *rss;
1659
1660			spin_lock_bh(&adapter->adv_rss_lock);
1661			list_for_each_entry(rss, &adapter->adv_rss_list_head,
1662					    list) {
1663				if (rss->state == IAVF_ADV_RSS_DEL_PENDING) {
1664					rss->state = IAVF_ADV_RSS_ACTIVE;
1665					dev_err(&adapter->pdev->dev, "Failed to delete RSS configuration, error %s\n",
1666						iavf_stat_str(&adapter->hw,
1667							      v_retval));
1668				}
1669			}
1670			spin_unlock_bh(&adapter->adv_rss_lock);
1671			}
1672			break;
1673		case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
1674		case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
1675			dev_warn(&adapter->pdev->dev, "Changing VLAN Stripping is not allowed when Port VLAN is configured\n");
1676			break;
1677		default:
1678			dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
1679				v_retval, iavf_stat_str(&adapter->hw, v_retval),
1680				v_opcode);
1681		}
1682	}
1683	switch (v_opcode) {
1684	case VIRTCHNL_OP_ADD_ETH_ADDR:
1685		if (!v_retval)
1686			iavf_mac_add_ok(adapter);
1687		if (!ether_addr_equal(netdev->dev_addr, adapter->hw.mac.addr))
1688			ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
1689		break;
1690	case VIRTCHNL_OP_GET_STATS: {
1691		struct iavf_eth_stats *stats =
1692			(struct iavf_eth_stats *)msg;
1693		netdev->stats.rx_packets = stats->rx_unicast +
1694					   stats->rx_multicast +
1695					   stats->rx_broadcast;
1696		netdev->stats.tx_packets = stats->tx_unicast +
1697					   stats->tx_multicast +
1698					   stats->tx_broadcast;
1699		netdev->stats.rx_bytes = stats->rx_bytes;
1700		netdev->stats.tx_bytes = stats->tx_bytes;
1701		netdev->stats.tx_errors = stats->tx_errors;
1702		netdev->stats.rx_dropped = stats->rx_discards;
1703		netdev->stats.tx_dropped = stats->tx_discards;
1704		adapter->current_stats = *stats;
1705		}
1706		break;
1707	case VIRTCHNL_OP_GET_VF_RESOURCES: {
1708		u16 len = sizeof(struct virtchnl_vf_resource) +
1709			  IAVF_MAX_VF_VSI *
1710			  sizeof(struct virtchnl_vsi_resource);
1711		memcpy(adapter->vf_res, msg, min(msglen, len));
1712		iavf_validate_num_queues(adapter);
1713		iavf_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
1714		if (is_zero_ether_addr(adapter->hw.mac.addr)) {
1715			/* restore current mac address */
1716			ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
1717		} else {
1718			/* refresh current mac address if changed */
1719			ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
1720			ether_addr_copy(netdev->perm_addr,
1721					adapter->hw.mac.addr);
1722		}
1723		spin_lock_bh(&adapter->mac_vlan_list_lock);
1724		iavf_add_filter(adapter, adapter->hw.mac.addr);
1725		spin_unlock_bh(&adapter->mac_vlan_list_lock);
1726		iavf_process_config(adapter);
1727		}
1728		break;
1729	case VIRTCHNL_OP_ENABLE_QUEUES:
1730		/* enable transmits */
1731		iavf_irq_enable(adapter, true);
1732		adapter->flags &= ~IAVF_FLAG_QUEUES_DISABLED;
1733		break;
1734	case VIRTCHNL_OP_DISABLE_QUEUES:
1735		iavf_free_all_tx_resources(adapter);
1736		iavf_free_all_rx_resources(adapter);
1737		if (adapter->state == __IAVF_DOWN_PENDING) {
1738			adapter->state = __IAVF_DOWN;
1739			wake_up(&adapter->down_waitqueue);
1740		}
1741		break;
1742	case VIRTCHNL_OP_VERSION:
1743	case VIRTCHNL_OP_CONFIG_IRQ_MAP:
1744		/* Don't display an error if we get these out of sequence.
1745		 * If the firmware needed to get kicked, we'll get these and
1746		 * it's no problem.
1747		 */
1748		if (v_opcode != adapter->current_op)
1749			return;
1750		break;
1751	case VIRTCHNL_OP_IWARP:
1752		/* Gobble zero-length replies from the PF. They indicate that
1753		 * a previous message was received OK, and the client doesn't
1754		 * care about that.
1755		 */
1756		if (msglen && CLIENT_ENABLED(adapter))
1757			iavf_notify_client_message(&adapter->vsi, msg, msglen);
1758		break;
1759
1760	case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
1761		adapter->client_pending &=
1762				~(BIT(VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP));
1763		break;
1764	case VIRTCHNL_OP_GET_RSS_HENA_CAPS: {
1765		struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg;
1766
1767		if (msglen == sizeof(*vrh))
1768			adapter->hena = vrh->hena;
1769		else
1770			dev_warn(&adapter->pdev->dev,
1771				 "Invalid message %d from PF\n", v_opcode);
1772		}
1773		break;
1774	case VIRTCHNL_OP_REQUEST_QUEUES: {
1775		struct virtchnl_vf_res_request *vfres =
1776			(struct virtchnl_vf_res_request *)msg;
1777
1778		if (vfres->num_queue_pairs != adapter->num_req_queues) {
1779			dev_info(&adapter->pdev->dev,
1780				 "Requested %d queues, PF can support %d\n",
1781				 adapter->num_req_queues,
1782				 vfres->num_queue_pairs);
1783			adapter->num_req_queues = 0;
1784			adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1785		}
1786		}
1787		break;
1788	case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
1789		struct iavf_cloud_filter *cf;
1790
1791		list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1792			if (cf->state == __IAVF_CF_ADD_PENDING)
1793				cf->state = __IAVF_CF_ACTIVE;
1794		}
1795		}
1796		break;
1797	case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
1798		struct iavf_cloud_filter *cf, *cftmp;
1799
1800		list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list,
1801					 list) {
1802			if (cf->state == __IAVF_CF_DEL_PENDING) {
1803				cf->state = __IAVF_CF_INVALID;
1804				list_del(&cf->list);
1805				kfree(cf);
1806				adapter->num_cloud_filters--;
1807			}
1808		}
1809		}
1810		break;
1811	case VIRTCHNL_OP_ADD_FDIR_FILTER: {
1812		struct virtchnl_fdir_add *add_fltr = (struct virtchnl_fdir_add *)msg;
1813		struct iavf_fdir_fltr *fdir, *fdir_tmp;
1814
1815		spin_lock_bh(&adapter->fdir_fltr_lock);
1816		list_for_each_entry_safe(fdir, fdir_tmp,
1817					 &adapter->fdir_list_head,
1818					 list) {
1819			if (fdir->state == IAVF_FDIR_FLTR_ADD_PENDING) {
1820				if (add_fltr->status == VIRTCHNL_FDIR_SUCCESS) {
1821					dev_info(&adapter->pdev->dev, "Flow Director filter with location %u is added\n",
1822						 fdir->loc);
1823					fdir->state = IAVF_FDIR_FLTR_ACTIVE;
1824					fdir->flow_id = add_fltr->flow_id;
1825				} else {
1826					dev_info(&adapter->pdev->dev, "Failed to add Flow Director filter with status: %d\n",
1827						 add_fltr->status);
1828					iavf_print_fdir_fltr(adapter, fdir);
1829					list_del(&fdir->list);
1830					kfree(fdir);
1831					adapter->fdir_active_fltr--;
1832				}
1833			}
1834		}
1835		spin_unlock_bh(&adapter->fdir_fltr_lock);
1836		}
1837		break;
1838	case VIRTCHNL_OP_DEL_FDIR_FILTER: {
1839		struct virtchnl_fdir_del *del_fltr = (struct virtchnl_fdir_del *)msg;
1840		struct iavf_fdir_fltr *fdir, *fdir_tmp;
1841
1842		spin_lock_bh(&adapter->fdir_fltr_lock);
1843		list_for_each_entry_safe(fdir, fdir_tmp, &adapter->fdir_list_head,
1844					 list) {
1845			if (fdir->state == IAVF_FDIR_FLTR_DEL_PENDING) {
1846				if (del_fltr->status == VIRTCHNL_FDIR_SUCCESS) {
1847					dev_info(&adapter->pdev->dev, "Flow Director filter with location %u is deleted\n",
1848						 fdir->loc);
1849					list_del(&fdir->list);
1850					kfree(fdir);
1851					adapter->fdir_active_fltr--;
1852				} else {
1853					fdir->state = IAVF_FDIR_FLTR_ACTIVE;
1854					dev_info(&adapter->pdev->dev, "Failed to delete Flow Director filter with status: %d\n",
1855						 del_fltr->status);
1856					iavf_print_fdir_fltr(adapter, fdir);
1857				}
1858			}
1859		}
1860		spin_unlock_bh(&adapter->fdir_fltr_lock);
1861		}
1862		break;
1863	case VIRTCHNL_OP_ADD_RSS_CFG: {
1864		struct iavf_adv_rss *rss;
1865
1866		spin_lock_bh(&adapter->adv_rss_lock);
1867		list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
1868			if (rss->state == IAVF_ADV_RSS_ADD_PENDING) {
1869				iavf_print_adv_rss_cfg(adapter, rss,
1870						       "Input set change for",
1871						       "successful");
1872				rss->state = IAVF_ADV_RSS_ACTIVE;
1873			}
1874		}
1875		spin_unlock_bh(&adapter->adv_rss_lock);
1876		}
1877		break;
1878	case VIRTCHNL_OP_DEL_RSS_CFG: {
1879		struct iavf_adv_rss *rss, *rss_tmp;
1880
1881		spin_lock_bh(&adapter->adv_rss_lock);
1882		list_for_each_entry_safe(rss, rss_tmp,
1883					 &adapter->adv_rss_list_head, list) {
1884			if (rss->state == IAVF_ADV_RSS_DEL_PENDING) {
1885				list_del(&rss->list);
1886				kfree(rss);
1887			}
1888		}
1889		spin_unlock_bh(&adapter->adv_rss_lock);
1890		}
1891		break;
1892	default:
1893		if (adapter->current_op && (v_opcode != adapter->current_op))
1894			dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
1895				 adapter->current_op, v_opcode);
1896		break;
1897	} /* switch v_opcode */
1898	adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1899}