2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
18 #include <vlib/vlib.h>
19 #include <vppinfra/ring.h>
20 #include <vlib/unix/unix.h>
21 #include <vlib/pci/pci.h>
22 #include <vnet/ethernet/ethernet.h>
26 #define AVF_MBOX_LEN 64
27 #define AVF_MBOX_BUF_SZ 512
28 #define AVF_RXQ_SZ 512
29 #define AVF_TXQ_SZ 512
30 #define AVF_ITR_INT 32
32 #define PCI_VENDOR_ID_INTEL 0x8086
33 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
34 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
35 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
39 static pci_device_id_t avf_pci_device_ids[] = {
40 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
41 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
42 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
46 const static char *virtchnl_event_names[] = {
47 #define _(v, n) [v] = #n,
48 foreach_virtchnl_event_code
52 const static char *virtchnl_link_speed_str[] = {
53 #define _(v, n, s) [v] = s,
54 foreach_virtchnl_link_speed
59 avf_irq_0_disable (avf_device_t * ad)
61 u32 dyn_ctl0 = 0, icr0_ena = 0;
63 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
65 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
66 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
71 avf_irq_0_enable (avf_device_t * ad)
73 u32 dyn_ctl0 = 0, icr0_ena = 0;
75 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
77 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
78 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
79 //dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
80 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
82 avf_irq_0_disable (ad);
83 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
84 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
89 avf_irq_n_disable (avf_device_t * ad, u8 line)
93 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
98 avf_irq_n_enable (avf_device_t * ad, u8 line)
102 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
103 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
104 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
106 avf_irq_n_disable (ad, line);
107 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
113 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
116 clib_error_t *err = 0;
117 avf_aq_desc_t *d, dc;
118 f64 t0, wait_time, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
120 d = &ad->atq[ad->atq_next_slot];
121 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
122 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
128 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
129 d->addr_hi = (u32) (pa >> 32);
130 d->addr_lo = (u32) pa;
131 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
133 d->flags |= AVF_AQ_F_BUF;
136 if (ad->flags & AVF_DEVICE_F_ELOG)
137 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
139 CLIB_MEMORY_BARRIER ();
140 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
141 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
144 t0 = vlib_time_now (vm);
146 vlib_process_suspend (vm, suspend_time);
147 wait_time = vlib_time_now (vm) - t0;
149 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
151 if (wait_time > AVF_AQ_ENQ_MAX_WAIT_TIME)
153 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
161 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
162 if (d->flags & AVF_AQ_F_ERR)
163 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
164 "%d]", d->opcode, d->retval);
167 if (ad->flags & AVF_DEVICE_F_ELOG)
170 ELOG_TYPE_DECLARE (el) =
172 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
173 "datalen %d retval %d",
174 .format_args = "i4i2i2i2i2i2",
185 ed = ELOG_DATA (&vm->elog_main, el);
186 ed->dev_instance = ad->dev_instance;
187 ed->s_flags = dc.flags;
188 ed->r_flags = d->flags;
189 ed->opcode = dc.opcode;
190 ed->datalen = dc.datalen;
191 ed->retval = d->retval;
199 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
203 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
204 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
206 if (ad->flags & AVF_DEVICE_F_ELOG)
209 ELOG_TYPE_DECLARE (el) =
211 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
212 .format_args = "i4i4i4",
220 ed = ELOG_DATA (&vm->elog_main, el);
221 ed->dev_instance = ad->dev_instance;
230 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
236 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
237 rxq = vec_elt_at_index (ad->rxqs, qid);
238 rxq->size = rxq_size;
240 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
241 sizeof (avf_rx_desc_t),
242 2 * CLIB_CACHE_LINE_BYTES,
245 rxq->buffer_pool_index =
246 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
249 return vlib_physmem_last_error (vm);
251 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
254 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
255 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
256 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
258 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
259 rxq->buffer_pool_index);
262 return clib_error_return (0, "buffer allocation error");
264 rxq->n_enqueued = n_alloc;
265 avf_rx_desc_t *d = rxq->descs;
266 for (i = 0; i < n_alloc; i++)
268 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
269 if (ad->flags & AVF_DEVICE_F_VA_DMA)
270 d->qword[0] = vlib_buffer_get_va (b);
272 d->qword[0] = vlib_buffer_get_pa (vm, b);
276 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
281 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
286 if (qid >= ad->num_queue_pairs)
288 qid = qid % ad->num_queue_pairs;
289 txq = vec_elt_at_index (ad->txqs, qid);
291 clib_spinlock_init (&txq->lock);
292 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
296 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
297 txq = vec_elt_at_index (ad->txqs, qid);
298 txq->size = txq_size;
300 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
301 sizeof (avf_tx_desc_t),
302 2 * CLIB_CACHE_LINE_BYTES,
305 return vlib_physmem_last_error (vm);
307 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
310 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
311 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
313 /* initialize ring of pending RS slots */
314 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
316 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
324 } virtchnl_promisc_info_t;
327 avf_arq_slot_init (avf_device_t * ad, u16 slot)
330 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
332 clib_memset (d, 0, sizeof (avf_aq_desc_t));
333 d->flags = AVF_AQ_F_BUF;
334 d->datalen = AVF_MBOX_BUF_SZ;
335 d->addr_hi = (u32) (pa >> 32);
336 d->addr_lo = (u32) pa;
340 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
342 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
343 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
347 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
352 /* VF MailBox Transmit */
353 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
354 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
356 pa = avf_dma_addr (vm, ad, ad->atq);
357 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
358 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
359 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
360 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
361 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
363 /* VF MailBox Receive */
364 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
365 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
367 for (i = 0; i < AVF_MBOX_LEN; i++)
368 avf_arq_slot_init (ad, i);
370 pa = avf_dma_addr (vm, ad, ad->arq);
372 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
373 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
374 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
375 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
376 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
377 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
379 ad->atq_next_slot = 0;
380 ad->arq_next_slot = 0;
384 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
385 void *in, int in_len, void *out, int out_len)
388 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
393 /* suppress interrupt in the next adminq receive slot
394 as we are going to wait for response
395 we only need interrupts when event is received */
396 d = &ad->arq[ad->arq_next_slot];
397 d->flags |= AVF_AQ_F_SI;
399 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
403 head = avf_get_u32 (ad->bar0, AVF_ARQH);
405 if (ad->arq_next_slot == head)
408 return clib_error_return (0, "timeout");
409 vlib_process_suspend (vm, 10e-3);
413 d = &ad->arq[ad->arq_next_slot];
415 if (d->v_opcode == VIRTCHNL_OP_EVENT)
417 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
418 virtchnl_pf_event_t *e;
420 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
421 ((d->flags & AVF_AQ_F_BUF) == 0))
422 return clib_error_return (0, "event message error");
424 vec_add2 (ad->events, e, 1);
425 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
426 avf_arq_slot_init (ad, ad->arq_next_slot);
432 if (d->v_opcode != op)
435 clib_error_return (0,
436 "unexpected message receiver [v_opcode = %u, "
437 "expected %u, v_retval %d]", d->v_opcode, op,
444 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
445 d->v_opcode, d->v_retval);
449 if (d->flags & AVF_AQ_F_BUF)
451 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
452 clib_memcpy_fast (out, buf, out_len);
455 avf_arq_slot_init (ad, ad->arq_next_slot);
456 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
458 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
462 if (ad->flags & AVF_DEVICE_F_ELOG)
465 ELOG_TYPE_DECLARE (el) =
467 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
468 .format_args = "i4t4i4i4",
469 .n_enum_strings = VIRTCHNL_N_OPS,
471 #define _(v, n) [v] = #n,
483 ed = ELOG_DATA (&vm->elog_main, el);
484 ed->dev_instance = ad->dev_instance;
486 ed->v_opcode_val = op;
487 ed->v_retval = d->v_retval;
494 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
495 virtchnl_version_info_t * ver)
497 clib_error_t *err = 0;
498 virtchnl_version_info_t myver = {
499 .major = VIRTCHNL_VERSION_MAJOR,
500 .minor = VIRTCHNL_VERSION_MINOR,
503 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
505 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
506 sizeof (virtchnl_version_info_t), ver,
507 sizeof (virtchnl_version_info_t));
516 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
517 virtchnl_vf_resource_t * res)
519 clib_error_t *err = 0;
520 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
521 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
522 VIRTCHNL_VF_OFFLOAD_RX_POLLING);
524 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
525 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
526 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
531 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
532 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
533 "rss_key_size %u rss_lut_size %u",
534 res->num_vsis, res->num_queue_pairs, res->max_vectors,
535 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
537 for (i = 0; i < res->num_vsis; i++)
538 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
539 "num_queue_pairs %u vsi_type %u qset_handle %u "
540 "default_mac_addr %U", i,
541 res->vsi_res[i].vsi_id,
542 res->vsi_res[i].num_queue_pairs,
543 res->vsi_res[i].vsi_type,
544 res->vsi_res[i].qset_handle,
545 format_ethernet_address,
546 res->vsi_res[i].default_mac_addr);
553 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
555 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
558 virtchnl_rss_lut_t *rl;
560 clib_memset (msg, 0, msg_len);
561 rl = (virtchnl_rss_lut_t *) msg;
562 rl->vsi_id = ad->vsi_id;
563 rl->lut_entries = ad->rss_lut_size;
564 for (i = 0; i < ad->rss_lut_size; i++)
565 rl->lut[i] = i % ad->n_rx_queues;
567 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
568 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
569 rl->lut, rl->lut_entries);
571 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
576 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
578 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
581 virtchnl_rss_key_t *rk;
583 clib_memset (msg, 0, msg_len);
584 rk = (virtchnl_rss_key_t *) msg;
585 rk->vsi_id = ad->vsi_id;
586 rk->key_len = ad->rss_key_size;
587 u32 seed = random_default_seed ();
588 for (i = 0; i < ad->rss_key_size; i++)
589 rk->key[i] = (u8) random_u32 (&seed);
591 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
592 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
595 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
600 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
602 avf_log_debug (ad, "disable_vlan_stripping");
604 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
609 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
611 virtchnl_promisc_info_t pi = { 0 };
613 pi.vsi_id = ad->vsi_id;
614 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
616 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
617 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
618 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
620 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
621 sizeof (virtchnl_promisc_info_t), 0, 0);
626 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
629 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
630 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
631 sizeof (virtchnl_queue_pair_info_t);
633 virtchnl_vsi_queue_config_info_t *ci;
635 clib_memset (msg, 0, msg_len);
636 ci = (virtchnl_vsi_queue_config_info_t *) msg;
637 ci->vsi_id = ad->vsi_id;
638 ci->num_queue_pairs = n_qp;
640 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
641 ad->vsi_id, ci->num_queue_pairs);
643 for (i = 0; i < n_qp; i++)
645 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
646 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
648 rxq->vsi_id = ad->vsi_id;
650 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
651 if (i < vec_len (ad->rxqs))
653 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
654 rxq->ring_len = q->size;
655 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
656 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
657 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
659 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
660 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
661 i, rxq->max_pkt_size, rxq->ring_len,
662 rxq->databuffer_size, rxq->dma_ring_addr);
664 txq->vsi_id = ad->vsi_id;
666 if (i < vec_len (ad->txqs))
668 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
669 txq->ring_len = q->size;
670 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
672 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
673 "dma_ring_addr 0x%llx", i, txq->ring_len,
677 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
682 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
685 int msg_len = sizeof (virtchnl_irq_map_info_t) +
686 count * sizeof (virtchnl_vector_map_t);
688 virtchnl_irq_map_info_t *imi;
690 clib_memset (msg, 0, msg_len);
691 imi = (virtchnl_irq_map_info_t *) msg;
692 imi->num_vectors = count;
694 imi->vecmap[0].vector_id = 1;
695 imi->vecmap[0].vsi_id = ad->vsi_id;
696 imi->vecmap[0].rxq_map = (1 << ad->n_rx_queues) - 1;
697 imi->vecmap[0].txq_map = (1 << ad->n_tx_queues) - 1;
699 avf_log_debug (ad, "config_irq_map: vsi_id %u vector_id %u rxq_map %u",
700 ad->vsi_id, imi->vecmap[0].vector_id,
701 imi->vecmap[0].rxq_map);
703 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
708 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
711 sizeof (virtchnl_ether_addr_list_t) +
712 count * sizeof (virtchnl_ether_addr_t);
714 virtchnl_ether_addr_list_t *al;
717 clib_memset (msg, 0, msg_len);
718 al = (virtchnl_ether_addr_list_t *) msg;
719 al->vsi_id = ad->vsi_id;
720 al->num_elements = count;
722 avf_log_debug (ad, "add_eth_addr: vsi_id %u num_elements %u",
723 ad->vsi_id, al->num_elements);
725 for (i = 0; i < count; i++)
727 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
728 avf_log_debug (ad, "add_eth_addr[%u]: %U", i,
729 format_ethernet_address, &al->list[i].addr);
731 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
736 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
738 virtchnl_queue_select_t qs = { 0 };
740 qs.vsi_id = ad->vsi_id;
744 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
745 ad->vsi_id, qs.rx_queues, qs.tx_queues);
751 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
752 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
757 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
758 sizeof (virtchnl_queue_select_t), 0, 0);
762 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
763 virtchnl_eth_stats_t * es)
765 virtchnl_queue_select_t qs = { 0 };
766 qs.vsi_id = ad->vsi_id;
768 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
770 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
771 &qs, sizeof (virtchnl_queue_select_t),
772 es, sizeof (virtchnl_eth_stats_t));
776 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
778 avf_aq_desc_t d = { 0 };
783 avf_log_debug (ad, "reset");
786 d.v_opcode = VIRTCHNL_OP_RESET_VF;
787 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
791 vlib_process_suspend (vm, 10e-3);
792 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
794 if (rstat == 2 || rstat == 3)
799 avf_log_err (ad, "reset failed");
800 return clib_error_return (0, "reset failed (timeout)");
807 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
809 virtchnl_vf_res_request_t res_req = { 0 };
814 res_req.num_queue_pairs = num_queue_pairs;
816 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
818 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
819 sizeof (virtchnl_vf_res_request_t), &res_req,
820 sizeof (virtchnl_vf_res_request_t));
823 * if PF responds, the request failed
824 * else PF initializes restart and avf_send_to_pf returns an error
828 return clib_error_return (0, "requested more than %u queue pairs",
829 res_req.num_queue_pairs);
833 vlib_process_suspend (vm, 10e-3);
834 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
836 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
840 return clib_error_return (0, "reset failed (timeout)");
849 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
850 avf_create_if_args_t * args)
852 virtchnl_version_info_t ver = { 0 };
853 virtchnl_vf_resource_t res = { 0 };
855 vlib_thread_main_t *tm = vlib_get_thread_main ();
858 avf_adminq_init (vm, ad);
860 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
863 /* we failed to get more queues, but still we want to proceed */
864 clib_error_free (error);
866 if ((error = avf_device_reset (vm, ad)))
870 avf_adminq_init (vm, ad);
875 if ((error = avf_op_version (vm, ad, &ver)))
878 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
879 ver.minor != VIRTCHNL_VERSION_MINOR)
880 return clib_error_return (0, "incompatible protocol version "
881 "(remote %d.%d)", ver.major, ver.minor);
884 * OP_GET_VF_RESOURCES
886 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
889 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
890 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
892 ad->vsi_id = res.vsi_res[0].vsi_id;
893 ad->feature_bitmap = res.vf_offload_flags;
894 ad->num_queue_pairs = res.num_queue_pairs;
895 ad->max_vectors = res.max_vectors;
896 ad->max_mtu = res.max_mtu;
897 ad->rss_key_size = res.rss_key_size;
898 ad->rss_lut_size = res.rss_lut_size;
900 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
903 * Disable VLAN stripping
905 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
908 if ((error = avf_config_promisc_mode (vm, ad)))
914 if (args->rxq_num == 0)
918 else if (args->rxq_num > ad->num_queue_pairs)
920 args->rxq_num = ad->num_queue_pairs;
921 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
922 "Using %u rx queues.", args->rxq_num);
925 for (i = 0; i < args->rxq_num; i++)
926 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
929 for (i = 0; i < tm->n_vlib_mains; i++)
930 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
933 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
934 (error = avf_op_config_rss_lut (vm, ad)))
937 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
938 (error = avf_op_config_rss_key (vm, ad)))
941 if ((error = avf_op_config_vsi_queues (vm, ad)))
944 if ((error = avf_op_config_irq_map (vm, ad)))
947 avf_irq_0_enable (ad);
948 for (i = 0; i < ad->n_rx_queues; i++)
949 avf_irq_n_enable (ad, i);
951 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
954 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
955 pow2_mask (ad->n_tx_queues))))
958 ad->flags |= AVF_DEVICE_F_INITIALIZED;
963 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
965 avf_main_t *am = &avf_main;
966 vnet_main_t *vnm = vnet_get_main ();
967 virtchnl_pf_event_t *e;
970 if (ad->flags & AVF_DEVICE_F_ERROR)
973 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
976 ASSERT (ad->error == 0);
978 /* do not process device in reset state */
979 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
980 if (r != VIRTCHNL_VFR_VFACTIVE)
983 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
984 if ((r & 0xf0000000) != (1ULL << 31))
986 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
987 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
991 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
992 if ((r & 0xf0000000) != (1ULL << 31))
994 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
995 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1000 avf_op_get_stats (vm, ad, &ad->eth_stats);
1003 vec_foreach (e, ad->events)
1005 avf_log_debug (ad, "event: %s (%u) sev %d",
1006 virtchnl_event_names[e->event], e->event, e->severity);
1007 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1009 int link_up = e->event_data.link_event.link_status;
1010 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1014 avf_log_debug (ad, "event_link_change: status %d speed '%s' (%d)",
1016 speed < ARRAY_LEN (virtchnl_link_speed_str) ?
1017 virtchnl_link_speed_str[speed] : "unknown", speed);
1019 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1021 ad->flags |= AVF_DEVICE_F_LINK_UP;
1022 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1023 VNET_HW_INTERFACE_FLAG_LINK_UP);
1024 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1026 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1028 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1030 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1032 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1034 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1036 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1038 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1039 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index, kbps);
1040 ad->link_speed = speed;
1042 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1044 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1048 if (ad->flags & AVF_DEVICE_F_ELOG)
1050 ELOG_TYPE_DECLARE (el) =
1052 .format = "avf[%d] link change: link_status %d "
1054 .format_args = "i4i1i1",
1062 ed = ELOG_DATA (&vm->elog_main, el);
1063 ed->dev_instance = ad->dev_instance;
1064 ed->link_status = link_up;
1065 ed->link_speed = speed;
1070 if (ad->flags & AVF_DEVICE_F_ELOG)
1072 ELOG_TYPE_DECLARE (el) =
1074 .format = "avf[%d] unknown event: event %d severity %d",
1075 .format_args = "i4i4i1i1",
1083 ed = ELOG_DATA (&vm->elog_main, el);
1084 ed->dev_instance = ad->dev_instance;
1085 ed->event = e->event;
1086 ed->severity = e->severity;
1091 vec_reset_length (ad->events);
1096 ad->flags |= AVF_DEVICE_F_ERROR;
1097 ASSERT (ad->error != 0);
1098 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
1102 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1104 avf_main_t *am = &avf_main;
1105 vlib_log_warn (am->log_class, "TODO");
1110 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1112 avf_main_t *am = &avf_main;
1114 uword *event_data = 0, event_type;
1115 int enabled = 0, irq;
1116 f64 last_run_duration = 0;
1117 f64 last_periodic_time = 0;
1122 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1124 vlib_process_wait_for_event (vm);
1126 event_type = vlib_process_get_events (vm, &event_data);
1127 vec_reset_length (event_data);
1133 last_periodic_time = vlib_time_now (vm);
1135 case AVF_PROCESS_EVENT_START:
1138 case AVF_PROCESS_EVENT_STOP:
1141 case AVF_PROCESS_EVENT_AQ_INT:
1149 pool_foreach (ad, am->devices,
1151 avf_process_one_device (vm, ad, irq);
1154 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1160 VLIB_REGISTER_NODE (avf_process_node, static) = {
1161 .function = avf_process,
1162 .type = VLIB_NODE_TYPE_PROCESS,
1163 .name = "avf-process",
1168 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1170 avf_main_t *am = &avf_main;
1171 uword pd = vlib_pci_get_private_data (vm, h);
1172 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1175 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1177 if (ad->flags & AVF_DEVICE_F_ELOG)
1180 ELOG_TYPE_DECLARE (el) =
1182 .format = "avf[%d] irq 0: icr0 0x%x",
1183 .format_args = "i4i4",
1192 ed = ELOG_DATA (&vm->elog_main, el);
1193 ed->dev_instance = ad->dev_instance;
1197 avf_irq_0_enable (ad);
1199 /* bit 30 - Send/Receive Admin queue interrupt indication */
1200 if (icr0 & (1 << 30))
1201 vlib_process_signal_event (vm, avf_process_node.index,
1202 AVF_PROCESS_EVENT_AQ_INT, 0);
1206 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1208 vnet_main_t *vnm = vnet_get_main ();
1209 avf_main_t *am = &avf_main;
1210 uword pd = vlib_pci_get_private_data (vm, h);
1211 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1215 if (ad->flags & AVF_DEVICE_F_ELOG)
1218 ELOG_TYPE_DECLARE (el) =
1220 .format = "avf[%d] irq %d: received",
1221 .format_args = "i4i2",
1230 ed = ELOG_DATA (&vm->elog_main, el);
1231 ed->dev_instance = ad->dev_instance;
1236 if (vec_len (ad->rxqs) > qid && ad->rxqs[qid].int_mode != 0)
1237 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, qid);
1238 for (i = 0; i < vec_len (ad->rxqs); i++)
1239 avf_irq_n_enable (ad, i);
1243 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1245 vnet_main_t *vnm = vnet_get_main ();
1246 avf_main_t *am = &avf_main;
1249 if (ad->hw_if_index)
1251 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1252 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1253 ethernet_delete_interface (vnm, ad->hw_if_index);
1256 vlib_pci_device_close (vm, ad->pci_dev_handle);
1258 vlib_physmem_free (vm, ad->atq);
1259 vlib_physmem_free (vm, ad->arq);
1260 vlib_physmem_free (vm, ad->atq_bufs);
1261 vlib_physmem_free (vm, ad->arq_bufs);
1264 vec_foreach_index (i, ad->rxqs)
1266 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1267 vlib_physmem_free (vm, (void *) rxq->descs);
1268 if (rxq->n_enqueued)
1269 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1271 vec_free (rxq->bufs);
1274 vec_free (ad->rxqs);
1277 vec_foreach_index (i, ad->txqs)
1279 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1280 vlib_physmem_free (vm, (void *) txq->descs);
1281 if (txq->n_enqueued)
1283 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1284 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1287 vec_free (txq->bufs);
1288 clib_ring_free (txq->rs_slots);
1291 vec_free (ad->txqs);
1292 vec_free (ad->name);
1294 clib_error_free (ad->error);
1295 clib_memset (ad, 0, sizeof (*ad));
1296 pool_put (am->devices, ad);
1300 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1302 vnet_main_t *vnm = vnet_get_main ();
1303 avf_main_t *am = &avf_main;
1305 vlib_pci_dev_handle_t h;
1306 clib_error_t *error = 0;
1309 /* check input args */
1310 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1311 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1313 if ((args->rxq_size & (args->rxq_size - 1))
1314 || (args->txq_size & (args->txq_size - 1)))
1316 args->rv = VNET_API_ERROR_INVALID_VALUE;
1318 clib_error_return (error, "queue size must be a power of two");
1322 pool_get (am->devices, ad);
1323 ad->dev_instance = ad - am->devices;
1324 ad->per_interface_next_index = ~0;
1325 ad->name = vec_dup (args->name);
1327 if (args->enable_elog)
1328 ad->flags |= AVF_DEVICE_F_ELOG;
1330 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1333 pool_put (am->devices, ad);
1334 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1336 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1340 ad->pci_dev_handle = h;
1341 ad->pci_addr = args->addr;
1342 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1344 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1346 if ((error = vlib_pci_bus_master_enable (vm, h)))
1349 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1352 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1353 &avf_irq_0_handler)))
1356 if ((error = vlib_pci_register_msix_handler (vm, h, 1, 1,
1357 &avf_irq_n_handler)))
1360 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
1363 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1365 CLIB_CACHE_LINE_BYTES,
1369 error = vlib_physmem_last_error (vm);
1373 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1376 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1378 CLIB_CACHE_LINE_BYTES,
1382 error = vlib_physmem_last_error (vm);
1386 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1389 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1391 CLIB_CACHE_LINE_BYTES,
1393 if (ad->atq_bufs == 0)
1395 error = vlib_physmem_last_error (vm);
1399 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1402 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1404 CLIB_CACHE_LINE_BYTES,
1406 if (ad->arq_bufs == 0)
1408 error = vlib_physmem_last_error (vm);
1412 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1415 if ((error = vlib_pci_intr_enable (vm, h)))
1418 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1419 ad->flags |= AVF_DEVICE_F_VA_DMA;
1421 if ((error = avf_device_init (vm, am, ad, args)))
1424 /* create interface */
1425 error = ethernet_register_interface (vnm, avf_device_class.index,
1426 ad->dev_instance, ad->hwaddr,
1427 &ad->hw_if_index, avf_flag_change);
1432 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1433 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1435 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1436 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1437 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1438 avf_input_node.index);
1440 for (i = 0; i < ad->n_rx_queues; i++)
1441 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1443 if (pool_elts (am->devices) == 1)
1444 vlib_process_signal_event (vm, avf_process_node.index,
1445 AVF_PROCESS_EVENT_START, 0);
1450 avf_delete_if (vm, ad);
1451 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1452 args->error = clib_error_return (error, "pci-addr %U",
1453 format_vlib_pci_addr, &args->addr);
1454 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1457 static clib_error_t *
1458 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1460 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1461 avf_main_t *am = &avf_main;
1462 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1463 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1465 if (ad->flags & AVF_DEVICE_F_ERROR)
1466 return clib_error_return (0, "device is in error state");
1470 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1471 VNET_HW_INTERFACE_FLAG_LINK_UP);
1472 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1476 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1477 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1482 static clib_error_t *
1483 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1484 vnet_hw_interface_rx_mode mode)
1486 avf_main_t *am = &avf_main;
1487 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1488 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1489 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1491 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1500 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1503 avf_main_t *am = &avf_main;
1504 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1505 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1507 /* Shut off redirection */
1508 if (node_index == ~0)
1510 ad->per_interface_next_index = node_index;
1514 ad->per_interface_next_index =
1515 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1518 static char *avf_tx_func_error_strings[] = {
1520 foreach_avf_tx_func_error
1525 avf_clear_hw_interface_counters (u32 instance)
1527 avf_main_t *am = &avf_main;
1528 avf_device_t *ad = vec_elt_at_index (am->devices, instance);
1529 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1530 &ad->eth_stats, sizeof (ad->eth_stats));
1534 VNET_DEVICE_CLASS (avf_device_class,) =
1536 .name = "Adaptive Virtual Function (AVF) interface",
1537 .clear_counters = avf_clear_hw_interface_counters,
1538 .format_device = format_avf_device,
1539 .format_device_name = format_avf_device_name,
1540 .admin_up_down_function = avf_interface_admin_up_down,
1541 .rx_mode_change_function = avf_interface_rx_mode_change,
1542 .rx_redirect_to_node = avf_set_interface_next_node,
1543 .tx_function_n_errors = AVF_TX_N_ERROR,
1544 .tx_function_error_strings = avf_tx_func_error_strings,
1549 avf_init (vlib_main_t * vm)
1551 avf_main_t *am = &avf_main;
1552 vlib_thread_main_t *tm = vlib_get_thread_main ();
1554 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1555 CLIB_CACHE_LINE_BYTES);
1557 am->log_class = vlib_log_register_class ("avf", 0);
1558 vlib_log_debug (am->log_class, "initialized");
1564 VLIB_INIT_FUNCTION (avf_init) =
1566 .runs_after = VLIB_INITS ("pci_bus_init"),
1571 * fd.io coding-style-patch-verification: ON
1574 * eval: (c-set-style "gnu")