1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2018 Intel Corporation. */ 3 4#include <linux/bpf_trace.h> 5#include <net/xdp_sock_drv.h> 6#include <net/xdp.h> 7 8#include "i40e.h" 9#include "i40e_txrx_common.h" 10#include "i40e_xsk.h" 11 12void i40e_clear_rx_bi_zc(struct i40e_ring *rx_ring) 13{ 14 memset(rx_ring->rx_bi_zc, 0, 15 sizeof(*rx_ring->rx_bi_zc) * rx_ring->count); 16} 17 18static struct xdp_buff **i40e_rx_bi(struct i40e_ring *rx_ring, u32 idx) 19{ 20 return &rx_ring->rx_bi_zc[idx]; 21} 22 23/** 24 * i40e_realloc_rx_xdp_bi - reallocate SW ring for either XSK or normal buffer 25 * @rx_ring: Current rx ring 26 * @pool_present: is pool for XSK present 27 * 28 * Try allocating memory and return ENOMEM, if failed to allocate. 29 * If allocation was successful, substitute buffer with allocated one. 30 * Returns 0 on success, negative on failure 31 */ 32static int i40e_realloc_rx_xdp_bi(struct i40e_ring *rx_ring, bool pool_present) 33{ 34 size_t elem_size = pool_present ? sizeof(*rx_ring->rx_bi_zc) : 35 sizeof(*rx_ring->rx_bi); 36 void *sw_ring = kcalloc(rx_ring->count, elem_size, GFP_KERNEL); 37 38 if (!sw_ring) 39 return -ENOMEM; 40 41 if (pool_present) { 42 kfree(rx_ring->rx_bi); 43 rx_ring->rx_bi = NULL; 44 rx_ring->rx_bi_zc = sw_ring; 45 } else { 46 kfree(rx_ring->rx_bi_zc); 47 rx_ring->rx_bi_zc = NULL; 48 rx_ring->rx_bi = sw_ring; 49 } 50 return 0; 51} 52 53/** 54 * i40e_realloc_rx_bi_zc - reallocate rx SW rings 55 * @vsi: Current VSI 56 * @zc: is zero copy set 57 * 58 * Reallocate buffer for rx_rings that might be used by XSK. 59 * XDP requires more memory, than rx_buf provides. 60 * Returns 0 on success, negative on failure 61 */ 62int i40e_realloc_rx_bi_zc(struct i40e_vsi *vsi, bool zc) 63{ 64 struct i40e_ring *rx_ring; 65 unsigned long q; 66 67 for_each_set_bit(q, vsi->af_xdp_zc_qps, vsi->alloc_queue_pairs) { 68 rx_ring = vsi->rx_rings[q]; 69 if (i40e_realloc_rx_xdp_bi(rx_ring, zc)) 70 return -ENOMEM; 71 } 72 return 0; 73} 74 75/** 76 * i40e_xsk_pool_enable - Enable/associate an AF_XDP buffer pool to a 77 * certain ring/qid 78 * @vsi: Current VSI 79 * @pool: buffer pool 80 * @qid: Rx ring to associate buffer pool with 81 * 82 * Returns 0 on success, <0 on failure 83 **/ 84static int i40e_xsk_pool_enable(struct i40e_vsi *vsi, 85 struct xsk_buff_pool *pool, 86 u16 qid) 87{ 88 struct net_device *netdev = vsi->netdev; 89 bool if_running; 90 int err; 91 92 if (vsi->type != I40E_VSI_MAIN) 93 return -EINVAL; 94 95 if (qid >= vsi->num_queue_pairs) 96 return -EINVAL; 97 98 if (qid >= netdev->real_num_rx_queues || 99 qid >= netdev->real_num_tx_queues) 100 return -EINVAL; 101 102 err = xsk_pool_dma_map(pool, &vsi->back->pdev->dev, I40E_RX_DMA_ATTR); 103 if (err) 104 return err; 105 106 set_bit(qid, vsi->af_xdp_zc_qps); 107 108 if_running = netif_running(vsi->netdev) && i40e_enabled_xdp_vsi(vsi); 109 110 if (if_running) { 111 err = i40e_queue_pair_disable(vsi, qid); 112 if (err) 113 return err; 114 115 err = i40e_realloc_rx_xdp_bi(vsi->rx_rings[qid], true); 116 if (err) 117 return err; 118 119 err = i40e_queue_pair_enable(vsi, qid); 120 if (err) 121 return err; 122 123 /* Kick start the NAPI context so that receiving will start */ 124 err = i40e_xsk_wakeup(vsi->netdev, qid, XDP_WAKEUP_RX); 125 if (err) 126 return err; 127 } 128 129 return 0; 130} 131 132/** 133 * i40e_xsk_pool_disable - Disassociate an AF_XDP buffer pool from a 134 * certain ring/qid 135 * @vsi: Current VSI 136 * @qid: Rx ring to associate buffer pool with 137 * 138 * Returns 0 on success, <0 on failure 139 **/ 140static int i40e_xsk_pool_disable(struct i40e_vsi *vsi, u16 qid) 141{ 142 struct net_device *netdev = vsi->netdev; 143 struct xsk_buff_pool *pool; 144 bool if_running; 145 int err; 146 147 pool = xsk_get_pool_from_qid(netdev, qid); 148 if (!pool) 149 return -EINVAL; 150 151 if_running = netif_running(vsi->netdev) && i40e_enabled_xdp_vsi(vsi); 152 153 if (if_running) { 154 err = i40e_queue_pair_disable(vsi, qid); 155 if (err) 156 return err; 157 } 158 159 clear_bit(qid, vsi->af_xdp_zc_qps); 160 xsk_pool_dma_unmap(pool, I40E_RX_DMA_ATTR); 161 162 if (if_running) { 163 err = i40e_realloc_rx_xdp_bi(vsi->rx_rings[qid], false); 164 if (err) 165 return err; 166 err = i40e_queue_pair_enable(vsi, qid); 167 if (err) 168 return err; 169 } 170 171 return 0; 172} 173 174/** 175 * i40e_xsk_pool_setup - Enable/disassociate an AF_XDP buffer pool to/from 176 * a ring/qid 177 * @vsi: Current VSI 178 * @pool: Buffer pool to enable/associate to a ring, or NULL to disable 179 * @qid: Rx ring to (dis)associate buffer pool (from)to 180 * 181 * This function enables or disables a buffer pool to a certain ring. 182 * 183 * Returns 0 on success, <0 on failure 184 **/ 185int i40e_xsk_pool_setup(struct i40e_vsi *vsi, struct xsk_buff_pool *pool, 186 u16 qid) 187{ 188 return pool ? i40e_xsk_pool_enable(vsi, pool, qid) : 189 i40e_xsk_pool_disable(vsi, qid); 190} 191 192/** 193 * i40e_run_xdp_zc - Executes an XDP program on an xdp_buff 194 * @rx_ring: Rx ring 195 * @xdp: xdp_buff used as input to the XDP program 196 * 197 * Returns any of I40E_XDP_{PASS, CONSUMED, TX, REDIR} 198 **/ 199static int i40e_run_xdp_zc(struct i40e_ring *rx_ring, struct xdp_buff *xdp) 200{ 201 int err, result = I40E_XDP_PASS; 202 struct i40e_ring *xdp_ring; 203 struct bpf_prog *xdp_prog; 204 u32 act; 205 206 rcu_read_lock(); 207 /* NB! xdp_prog will always be !NULL, due to the fact that 208 * this path is enabled by setting an XDP program. 209 */ 210 xdp_prog = READ_ONCE(rx_ring->xdp_prog); 211 act = bpf_prog_run_xdp(xdp_prog, xdp); 212 213 if (likely(act == XDP_REDIRECT)) { 214 err = xdp_do_redirect(rx_ring->netdev, xdp, xdp_prog); 215 if (err) 216 goto out_failure; 217 rcu_read_unlock(); 218 return I40E_XDP_REDIR; 219 } 220 221 switch (act) { 222 case XDP_PASS: 223 break; 224 case XDP_TX: 225 xdp_ring = rx_ring->vsi->xdp_rings[rx_ring->queue_index]; 226 result = i40e_xmit_xdp_tx_ring(xdp, xdp_ring); 227 if (result == I40E_XDP_CONSUMED) 228 goto out_failure; 229 break; 230 default: 231 bpf_warn_invalid_xdp_action(act); 232 fallthrough; 233 case XDP_ABORTED: 234out_failure: 235 trace_xdp_exception(rx_ring->netdev, xdp_prog, act); 236 fallthrough; /* handle aborts by dropping packet */ 237 case XDP_DROP: 238 result = I40E_XDP_CONSUMED; 239 break; 240 } 241 rcu_read_unlock(); 242 return result; 243} 244 245bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 count) 246{ 247 u16 ntu = rx_ring->next_to_use; 248 union i40e_rx_desc *rx_desc; 249 struct xdp_buff **bi, *xdp; 250 dma_addr_t dma; 251 bool ok = true; 252 253 rx_desc = I40E_RX_DESC(rx_ring, ntu); 254 bi = i40e_rx_bi(rx_ring, ntu); 255 do { 256 xdp = xsk_buff_alloc(rx_ring->xsk_pool); 257 if (!xdp) { 258 ok = false; 259 goto no_buffers; 260 } 261 *bi = xdp; 262 dma = xsk_buff_xdp_get_dma(xdp); 263 rx_desc->read.pkt_addr = cpu_to_le64(dma); 264 rx_desc->read.hdr_addr = 0; 265 266 rx_desc++; 267 bi++; 268 ntu++; 269 270 if (unlikely(ntu == rx_ring->count)) { 271 rx_desc = I40E_RX_DESC(rx_ring, 0); 272 bi = i40e_rx_bi(rx_ring, 0); 273 ntu = 0; 274 } 275 276 count--; 277 } while (count); 278 279no_buffers: 280 if (rx_ring->next_to_use != ntu) { 281 /* clear the status bits for the next_to_use descriptor */ 282 rx_desc->wb.qword1.status_error_len = 0; 283 i40e_release_rx_desc(rx_ring, ntu); 284 } 285 286 return ok; 287} 288 289/** 290 * i40e_construct_skb_zc - Create skbuff from zero-copy Rx buffer 291 * @rx_ring: Rx ring 292 * @xdp: xdp_buff 293 * 294 * This functions allocates a new skb from a zero-copy Rx buffer. 295 * 296 * Returns the skb, or NULL on failure. 297 **/ 298static struct sk_buff *i40e_construct_skb_zc(struct i40e_ring *rx_ring, 299 struct xdp_buff *xdp) 300{ 301 unsigned int totalsize = xdp->data_end - xdp->data_meta; 302 unsigned int metasize = xdp->data - xdp->data_meta; 303 struct sk_buff *skb; 304 305 net_prefetch(xdp->data_meta); 306 307 /* allocate a skb to store the frags */ 308 skb = __napi_alloc_skb(&rx_ring->q_vector->napi, totalsize, 309 GFP_ATOMIC | __GFP_NOWARN); 310 if (unlikely(!skb)) 311 return NULL; 312 313 memcpy(__skb_put(skb, totalsize), xdp->data_meta, 314 ALIGN(totalsize, sizeof(long))); 315 316 if (metasize) { 317 skb_metadata_set(skb, metasize); 318 __skb_pull(skb, metasize); 319 } 320 321 xsk_buff_free(xdp); 322 return skb; 323} 324 325/** 326 * i40e_inc_ntc: Advance the next_to_clean index 327 * @rx_ring: Rx ring 328 **/ 329static void i40e_inc_ntc(struct i40e_ring *rx_ring) 330{ 331 u32 ntc = rx_ring->next_to_clean + 1; 332 333 ntc = (ntc < rx_ring->count) ? ntc : 0; 334 rx_ring->next_to_clean = ntc; 335} 336 337/** 338 * i40e_clean_rx_irq_zc - Consumes Rx packets from the hardware ring 339 * @rx_ring: Rx ring 340 * @budget: NAPI budget 341 * 342 * Returns amount of work completed 343 **/ 344int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget) 345{ 346 unsigned int total_rx_bytes = 0, total_rx_packets = 0; 347 u16 cleaned_count = I40E_DESC_UNUSED(rx_ring); 348 unsigned int xdp_res, xdp_xmit = 0; 349 bool failure = false; 350 struct sk_buff *skb; 351 352 while (likely(total_rx_packets < (unsigned int)budget)) { 353 union i40e_rx_desc *rx_desc; 354 struct xdp_buff **bi; 355 unsigned int size; 356 u64 qword; 357 358 rx_desc = I40E_RX_DESC(rx_ring, rx_ring->next_to_clean); 359 qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len); 360 361 /* This memory barrier is needed to keep us from reading 362 * any other fields out of the rx_desc until we have 363 * verified the descriptor has been written back. 364 */ 365 dma_rmb(); 366 367 if (i40e_rx_is_programming_status(qword)) { 368 i40e_clean_programming_status(rx_ring, 369 rx_desc->raw.qword[0], 370 qword); 371 bi = i40e_rx_bi(rx_ring, rx_ring->next_to_clean); 372 xsk_buff_free(*bi); 373 *bi = NULL; 374 cleaned_count++; 375 i40e_inc_ntc(rx_ring); 376 continue; 377 } 378 379 bi = i40e_rx_bi(rx_ring, rx_ring->next_to_clean); 380 size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >> 381 I40E_RXD_QW1_LENGTH_PBUF_SHIFT; 382 if (!size) 383 break; 384 385 bi = i40e_rx_bi(rx_ring, rx_ring->next_to_clean); 386 (*bi)->data_end = (*bi)->data + size; 387 xsk_buff_dma_sync_for_cpu(*bi, rx_ring->xsk_pool); 388 389 xdp_res = i40e_run_xdp_zc(rx_ring, *bi); 390 if (xdp_res) { 391 if (xdp_res & (I40E_XDP_TX | I40E_XDP_REDIR)) 392 xdp_xmit |= xdp_res; 393 else 394 xsk_buff_free(*bi); 395 396 *bi = NULL; 397 total_rx_bytes += size; 398 total_rx_packets++; 399 400 cleaned_count++; 401 i40e_inc_ntc(rx_ring); 402 continue; 403 } 404 405 /* XDP_PASS path */ 406 407 /* NB! We are not checking for errors using 408 * i40e_test_staterr with 409 * BIT(I40E_RXD_QW1_ERROR_SHIFT). This is due to that 410 * SBP is *not* set in PRT_SBPVSI (default not set). 411 */ 412 skb = i40e_construct_skb_zc(rx_ring, *bi); 413 if (!skb) { 414 rx_ring->rx_stats.alloc_buff_failed++; 415 break; 416 } 417 418 *bi = NULL; 419 cleaned_count++; 420 i40e_inc_ntc(rx_ring); 421 422 if (eth_skb_pad(skb)) 423 continue; 424 425 total_rx_bytes += skb->len; 426 total_rx_packets++; 427 428 i40e_process_skb_fields(rx_ring, rx_desc, skb); 429 napi_gro_receive(&rx_ring->q_vector->napi, skb); 430 } 431 432 if (cleaned_count >= I40E_RX_BUFFER_WRITE) 433 failure = !i40e_alloc_rx_buffers_zc(rx_ring, cleaned_count); 434 435 i40e_finalize_xdp_rx(rx_ring, xdp_xmit); 436 i40e_update_rx_stats(rx_ring, total_rx_bytes, total_rx_packets); 437 438 if (xsk_uses_need_wakeup(rx_ring->xsk_pool)) { 439 if (failure || rx_ring->next_to_clean == rx_ring->next_to_use) 440 xsk_set_rx_need_wakeup(rx_ring->xsk_pool); 441 else 442 xsk_clear_rx_need_wakeup(rx_ring->xsk_pool); 443 444 return (int)total_rx_packets; 445 } 446 return failure ? budget : (int)total_rx_packets; 447} 448 449/** 450 * i40e_xmit_zc - Performs zero-copy Tx AF_XDP 451 * @xdp_ring: XDP Tx ring 452 * @budget: NAPI budget 453 * 454 * Returns true if the work is finished. 455 **/ 456static bool i40e_xmit_zc(struct i40e_ring *xdp_ring, unsigned int budget) 457{ 458 unsigned int sent_frames = 0, total_bytes = 0; 459 struct i40e_tx_desc *tx_desc = NULL; 460 struct i40e_tx_buffer *tx_bi; 461 struct xdp_desc desc; 462 dma_addr_t dma; 463 464 while (budget-- > 0) { 465 if (!xsk_tx_peek_desc(xdp_ring->xsk_pool, &desc)) 466 break; 467 468 dma = xsk_buff_raw_get_dma(xdp_ring->xsk_pool, desc.addr); 469 xsk_buff_raw_dma_sync_for_device(xdp_ring->xsk_pool, dma, 470 desc.len); 471 472 tx_bi = &xdp_ring->tx_bi[xdp_ring->next_to_use]; 473 tx_bi->bytecount = desc.len; 474 475 tx_desc = I40E_TX_DESC(xdp_ring, xdp_ring->next_to_use); 476 tx_desc->buffer_addr = cpu_to_le64(dma); 477 tx_desc->cmd_type_offset_bsz = 478 build_ctob(I40E_TX_DESC_CMD_ICRC 479 | I40E_TX_DESC_CMD_EOP, 480 0, desc.len, 0); 481 482 sent_frames++; 483 total_bytes += tx_bi->bytecount; 484 485 xdp_ring->next_to_use++; 486 if (xdp_ring->next_to_use == xdp_ring->count) 487 xdp_ring->next_to_use = 0; 488 } 489 490 if (tx_desc) { 491 /* Request an interrupt for the last frame and bump tail ptr. */ 492 tx_desc->cmd_type_offset_bsz |= (I40E_TX_DESC_CMD_RS << 493 I40E_TXD_QW1_CMD_SHIFT); 494 i40e_xdp_ring_update_tail(xdp_ring); 495 496 xsk_tx_release(xdp_ring->xsk_pool); 497 i40e_update_tx_stats(xdp_ring, sent_frames, total_bytes); 498 } 499 500 return !!budget; 501} 502 503/** 504 * i40e_clean_xdp_tx_buffer - Frees and unmaps an XDP Tx entry 505 * @tx_ring: XDP Tx ring 506 * @tx_bi: Tx buffer info to clean 507 **/ 508static void i40e_clean_xdp_tx_buffer(struct i40e_ring *tx_ring, 509 struct i40e_tx_buffer *tx_bi) 510{ 511 xdp_return_frame(tx_bi->xdpf); 512 tx_ring->xdp_tx_active--; 513 dma_unmap_single(tx_ring->dev, 514 dma_unmap_addr(tx_bi, dma), 515 dma_unmap_len(tx_bi, len), DMA_TO_DEVICE); 516 dma_unmap_len_set(tx_bi, len, 0); 517} 518 519/** 520 * i40e_clean_xdp_tx_irq - Completes AF_XDP entries, and cleans XDP entries 521 * @vsi: Current VSI 522 * @tx_ring: XDP Tx ring 523 * 524 * Returns true if cleanup/tranmission is done. 525 **/ 526bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring) 527{ 528 struct xsk_buff_pool *bp = tx_ring->xsk_pool; 529 u32 i, completed_frames, xsk_frames = 0; 530 u32 head_idx = i40e_get_head(tx_ring); 531 struct i40e_tx_buffer *tx_bi; 532 unsigned int ntc; 533 534 if (head_idx < tx_ring->next_to_clean) 535 head_idx += tx_ring->count; 536 completed_frames = head_idx - tx_ring->next_to_clean; 537 538 if (completed_frames == 0) 539 goto out_xmit; 540 541 if (likely(!tx_ring->xdp_tx_active)) { 542 xsk_frames = completed_frames; 543 goto skip; 544 } 545 546 ntc = tx_ring->next_to_clean; 547 548 for (i = 0; i < completed_frames; i++) { 549 tx_bi = &tx_ring->tx_bi[ntc]; 550 551 if (tx_bi->xdpf) { 552 i40e_clean_xdp_tx_buffer(tx_ring, tx_bi); 553 tx_bi->xdpf = NULL; 554 } else { 555 xsk_frames++; 556 } 557 558 if (++ntc >= tx_ring->count) 559 ntc = 0; 560 } 561 562skip: 563 tx_ring->next_to_clean += completed_frames; 564 if (unlikely(tx_ring->next_to_clean >= tx_ring->count)) 565 tx_ring->next_to_clean -= tx_ring->count; 566 567 if (xsk_frames) 568 xsk_tx_completed(bp, xsk_frames); 569 570 i40e_arm_wb(tx_ring, vsi, completed_frames); 571 572out_xmit: 573 if (xsk_uses_need_wakeup(tx_ring->xsk_pool)) 574 xsk_set_tx_need_wakeup(tx_ring->xsk_pool); 575 576 return i40e_xmit_zc(tx_ring, I40E_DESC_UNUSED(tx_ring)); 577} 578 579/** 580 * i40e_xsk_wakeup - Implements the ndo_xsk_wakeup 581 * @dev: the netdevice 582 * @queue_id: queue id to wake up 583 * @flags: ignored in our case since we have Rx and Tx in the same NAPI. 584 * 585 * Returns <0 for errors, 0 otherwise. 586 **/ 587int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags) 588{ 589 struct i40e_netdev_priv *np = netdev_priv(dev); 590 struct i40e_vsi *vsi = np->vsi; 591 struct i40e_pf *pf = vsi->back; 592 struct i40e_ring *ring; 593 594 if (test_bit(__I40E_CONFIG_BUSY, pf->state)) 595 return -EAGAIN; 596 597 if (test_bit(__I40E_VSI_DOWN, vsi->state)) 598 return -ENETDOWN; 599 600 if (!i40e_enabled_xdp_vsi(vsi)) 601 return -ENXIO; 602 603 if (queue_id >= vsi->num_queue_pairs) 604 return -ENXIO; 605 606 if (!vsi->xdp_rings[queue_id]->xsk_pool) 607 return -ENXIO; 608 609 ring = vsi->xdp_rings[queue_id]; 610 611 /* The idea here is that if NAPI is running, mark a miss, so 612 * it will run again. If not, trigger an interrupt and 613 * schedule the NAPI from interrupt context. If NAPI would be 614 * scheduled here, the interrupt affinity would not be 615 * honored. 616 */ 617 if (!napi_if_scheduled_mark_missed(&ring->q_vector->napi)) 618 i40e_force_wb(vsi, ring->q_vector); 619 620 return 0; 621} 622 623void i40e_xsk_clean_rx_ring(struct i40e_ring *rx_ring) 624{ 625 u16 i; 626 627 for (i = 0; i < rx_ring->count; i++) { 628 struct xdp_buff *rx_bi = *i40e_rx_bi(rx_ring, i); 629 630 if (!rx_bi) 631 continue; 632 633 xsk_buff_free(rx_bi); 634 rx_bi = NULL; 635 } 636} 637 638/** 639 * i40e_xsk_clean_xdp_ring - Clean the XDP Tx ring on shutdown 640 * @tx_ring: XDP Tx ring 641 **/ 642void i40e_xsk_clean_tx_ring(struct i40e_ring *tx_ring) 643{ 644 u16 ntc = tx_ring->next_to_clean, ntu = tx_ring->next_to_use; 645 struct xsk_buff_pool *bp = tx_ring->xsk_pool; 646 struct i40e_tx_buffer *tx_bi; 647 u32 xsk_frames = 0; 648 649 while (ntc != ntu) { 650 tx_bi = &tx_ring->tx_bi[ntc]; 651 652 if (tx_bi->xdpf) 653 i40e_clean_xdp_tx_buffer(tx_ring, tx_bi); 654 else 655 xsk_frames++; 656 657 tx_bi->xdpf = NULL; 658 659 ntc++; 660 if (ntc >= tx_ring->count) 661 ntc = 0; 662 } 663 664 if (xsk_frames) 665 xsk_tx_completed(bp, xsk_frames); 666} 667 668/** 669 * i40e_xsk_any_rx_ring_enabled - Checks if Rx rings have an AF_XDP 670 * buffer pool attached 671 * @vsi: vsi 672 * 673 * Returns true if any of the Rx rings has an AF_XDP buffer pool attached 674 **/ 675bool i40e_xsk_any_rx_ring_enabled(struct i40e_vsi *vsi) 676{ 677 struct net_device *netdev = vsi->netdev; 678 int i; 679 680 for (i = 0; i < vsi->num_queue_pairs; i++) { 681 if (xsk_get_pool_from_qid(netdev, i)) 682 return true; 683 } 684 685 return false; 686} 687