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, 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);
148 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
150 f64 t = vlib_time_now (vm) - t0;
151 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
153 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
154 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
162 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
163 if (d->flags & AVF_AQ_F_ERR)
164 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
165 "%d]", d->opcode, d->retval);
168 if (ad->flags & AVF_DEVICE_F_ELOG)
171 ELOG_TYPE_DECLARE (el) =
173 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
174 "datalen %d retval %d",
175 .format_args = "i4i2i2i2i2i2",
186 ed = ELOG_DATA (&vm->elog_main, el);
187 ed->dev_instance = ad->dev_instance;
188 ed->s_flags = dc.flags;
189 ed->r_flags = d->flags;
190 ed->opcode = dc.opcode;
191 ed->datalen = dc.datalen;
192 ed->retval = d->retval;
200 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
204 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
205 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
207 if (ad->flags & AVF_DEVICE_F_ELOG)
210 ELOG_TYPE_DECLARE (el) =
212 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
213 .format_args = "i4i4i4",
221 ed = ELOG_DATA (&vm->elog_main, el);
222 ed->dev_instance = ad->dev_instance;
231 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
237 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
238 rxq = vec_elt_at_index (ad->rxqs, qid);
239 rxq->size = rxq_size;
241 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
242 sizeof (avf_rx_desc_t),
243 2 * CLIB_CACHE_LINE_BYTES,
246 rxq->buffer_pool_index =
247 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
250 return vlib_physmem_last_error (vm);
252 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
255 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
256 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
257 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
259 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
260 rxq->buffer_pool_index);
263 return clib_error_return (0, "buffer allocation error");
265 rxq->n_enqueued = n_alloc;
266 avf_rx_desc_t *d = rxq->descs;
267 for (i = 0; i < n_alloc; i++)
269 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
270 if (ad->flags & AVF_DEVICE_F_VA_DMA)
271 d->qword[0] = vlib_buffer_get_va (b);
273 d->qword[0] = vlib_buffer_get_pa (vm, b);
277 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
282 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
287 if (qid >= ad->num_queue_pairs)
289 qid = qid % ad->num_queue_pairs;
290 txq = vec_elt_at_index (ad->txqs, qid);
292 clib_spinlock_init (&txq->lock);
293 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
297 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
298 txq = vec_elt_at_index (ad->txqs, qid);
299 txq->size = txq_size;
301 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
302 sizeof (avf_tx_desc_t),
303 2 * CLIB_CACHE_LINE_BYTES,
306 return vlib_physmem_last_error (vm);
308 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
311 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
312 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
314 /* initialize ring of pending RS slots */
315 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
317 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
325 } virtchnl_promisc_info_t;
328 avf_arq_slot_init (avf_device_t * ad, u16 slot)
331 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
333 clib_memset (d, 0, sizeof (avf_aq_desc_t));
334 d->flags = AVF_AQ_F_BUF;
335 d->datalen = AVF_MBOX_BUF_SZ;
336 d->addr_hi = (u32) (pa >> 32);
337 d->addr_lo = (u32) pa;
341 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
343 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
344 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
348 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
353 /* VF MailBox Transmit */
354 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
355 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
357 pa = avf_dma_addr (vm, ad, ad->atq);
358 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
359 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
360 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
361 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
362 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
364 /* VF MailBox Receive */
365 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
366 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
368 for (i = 0; i < AVF_MBOX_LEN; i++)
369 avf_arq_slot_init (ad, i);
371 pa = avf_dma_addr (vm, ad, ad->arq);
373 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
374 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
375 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
376 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
377 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
378 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
380 ad->atq_next_slot = 0;
381 ad->arq_next_slot = 0;
385 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
386 void *in, int in_len, void *out, int out_len)
389 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
391 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
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)))
402 t0 = vlib_time_now (vm);
404 head = avf_get_u32 (ad->bar0, AVF_ARQH);
406 if (ad->arq_next_slot == head)
408 f64 t = vlib_time_now (vm) - t0;
409 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
411 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
412 return clib_error_return (0, "timeout");
414 vlib_process_suspend (vm, suspend_time);
419 d = &ad->arq[ad->arq_next_slot];
421 if (d->v_opcode == VIRTCHNL_OP_EVENT)
423 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
424 virtchnl_pf_event_t *e;
426 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
427 ((d->flags & AVF_AQ_F_BUF) == 0))
428 return clib_error_return (0, "event message error");
430 vec_add2 (ad->events, e, 1);
431 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
432 avf_arq_slot_init (ad, ad->arq_next_slot);
435 t0 = vlib_time_now (vm);
436 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
440 if (d->v_opcode != op)
443 clib_error_return (0,
444 "unexpected message receiver [v_opcode = %u, "
445 "expected %u, v_retval %d]", d->v_opcode, op,
452 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
453 d->v_opcode, d->v_retval);
457 if (d->flags & AVF_AQ_F_BUF)
459 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
460 clib_memcpy_fast (out, buf, out_len);
463 avf_arq_slot_init (ad, ad->arq_next_slot);
464 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
466 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
470 if (ad->flags & AVF_DEVICE_F_ELOG)
473 ELOG_TYPE_DECLARE (el) =
475 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
476 .format_args = "i4t4i4i4",
477 .n_enum_strings = VIRTCHNL_N_OPS,
479 #define _(v, n) [v] = #n,
491 ed = ELOG_DATA (&vm->elog_main, el);
492 ed->dev_instance = ad->dev_instance;
494 ed->v_opcode_val = op;
495 ed->v_retval = d->v_retval;
502 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
503 virtchnl_version_info_t * ver)
505 clib_error_t *err = 0;
506 virtchnl_version_info_t myver = {
507 .major = VIRTCHNL_VERSION_MAJOR,
508 .minor = VIRTCHNL_VERSION_MINOR,
511 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
513 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
514 sizeof (virtchnl_version_info_t), ver,
515 sizeof (virtchnl_version_info_t));
524 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
525 virtchnl_vf_resource_t * res)
527 clib_error_t *err = 0;
528 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
529 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
530 VIRTCHNL_VF_OFFLOAD_RX_POLLING);
532 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
533 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
534 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
539 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
540 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
541 "rss_key_size %u rss_lut_size %u",
542 res->num_vsis, res->num_queue_pairs, res->max_vectors,
543 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
545 for (i = 0; i < res->num_vsis; i++)
546 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
547 "num_queue_pairs %u vsi_type %u qset_handle %u "
548 "default_mac_addr %U", i,
549 res->vsi_res[i].vsi_id,
550 res->vsi_res[i].num_queue_pairs,
551 res->vsi_res[i].vsi_type,
552 res->vsi_res[i].qset_handle,
553 format_ethernet_address,
554 res->vsi_res[i].default_mac_addr);
561 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
563 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
566 virtchnl_rss_lut_t *rl;
568 clib_memset (msg, 0, msg_len);
569 rl = (virtchnl_rss_lut_t *) msg;
570 rl->vsi_id = ad->vsi_id;
571 rl->lut_entries = ad->rss_lut_size;
572 for (i = 0; i < ad->rss_lut_size; i++)
573 rl->lut[i] = i % ad->n_rx_queues;
575 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
576 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
577 rl->lut, rl->lut_entries);
579 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
584 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
586 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
589 virtchnl_rss_key_t *rk;
591 clib_memset (msg, 0, msg_len);
592 rk = (virtchnl_rss_key_t *) msg;
593 rk->vsi_id = ad->vsi_id;
594 rk->key_len = ad->rss_key_size;
595 u32 seed = random_default_seed ();
596 for (i = 0; i < ad->rss_key_size; i++)
597 rk->key[i] = (u8) random_u32 (&seed);
599 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
600 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
603 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
608 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
610 avf_log_debug (ad, "disable_vlan_stripping");
612 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
617 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad, int is_enable)
619 virtchnl_promisc_info_t pi = { 0 };
621 pi.vsi_id = ad->vsi_id;
624 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
626 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
627 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
628 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
630 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
631 sizeof (virtchnl_promisc_info_t), 0, 0);
636 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
639 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
640 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
641 sizeof (virtchnl_queue_pair_info_t);
643 virtchnl_vsi_queue_config_info_t *ci;
645 clib_memset (msg, 0, msg_len);
646 ci = (virtchnl_vsi_queue_config_info_t *) msg;
647 ci->vsi_id = ad->vsi_id;
648 ci->num_queue_pairs = n_qp;
650 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
651 ad->vsi_id, ci->num_queue_pairs);
653 for (i = 0; i < n_qp; i++)
655 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
656 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
658 rxq->vsi_id = ad->vsi_id;
660 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
661 if (i < vec_len (ad->rxqs))
663 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
664 rxq->ring_len = q->size;
665 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
666 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
667 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
669 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
670 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
671 i, rxq->max_pkt_size, rxq->ring_len,
672 rxq->databuffer_size, rxq->dma_ring_addr);
674 txq->vsi_id = ad->vsi_id;
676 if (i < vec_len (ad->txqs))
678 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
679 txq->ring_len = q->size;
680 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
682 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
683 "dma_ring_addr 0x%llx", i, txq->ring_len,
687 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
692 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
695 int msg_len = sizeof (virtchnl_irq_map_info_t) +
696 count * sizeof (virtchnl_vector_map_t);
698 virtchnl_irq_map_info_t *imi;
700 clib_memset (msg, 0, msg_len);
701 imi = (virtchnl_irq_map_info_t *) msg;
702 imi->num_vectors = count;
704 imi->vecmap[0].vector_id = 1;
705 imi->vecmap[0].vsi_id = ad->vsi_id;
706 imi->vecmap[0].rxq_map = (1 << ad->n_rx_queues) - 1;
707 imi->vecmap[0].txq_map = (1 << ad->n_tx_queues) - 1;
709 avf_log_debug (ad, "config_irq_map: vsi_id %u vector_id %u rxq_map %u",
710 ad->vsi_id, imi->vecmap[0].vector_id,
711 imi->vecmap[0].rxq_map);
713 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
718 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
721 sizeof (virtchnl_ether_addr_list_t) +
722 count * sizeof (virtchnl_ether_addr_t);
724 virtchnl_ether_addr_list_t *al;
727 clib_memset (msg, 0, msg_len);
728 al = (virtchnl_ether_addr_list_t *) msg;
729 al->vsi_id = ad->vsi_id;
730 al->num_elements = count;
732 avf_log_debug (ad, "add_eth_addr: vsi_id %u num_elements %u",
733 ad->vsi_id, al->num_elements);
735 for (i = 0; i < count; i++)
737 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
738 avf_log_debug (ad, "add_eth_addr[%u]: %U", i,
739 format_ethernet_address, &al->list[i].addr);
741 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
746 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
748 virtchnl_queue_select_t qs = { 0 };
750 qs.vsi_id = ad->vsi_id;
754 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
755 ad->vsi_id, qs.rx_queues, qs.tx_queues);
761 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
762 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
767 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
768 sizeof (virtchnl_queue_select_t), 0, 0);
772 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
773 virtchnl_eth_stats_t * es)
775 virtchnl_queue_select_t qs = { 0 };
776 qs.vsi_id = ad->vsi_id;
778 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
780 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
781 &qs, sizeof (virtchnl_queue_select_t),
782 es, sizeof (virtchnl_eth_stats_t));
786 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
788 avf_aq_desc_t d = { 0 };
791 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
793 avf_log_debug (ad, "reset");
796 d.v_opcode = VIRTCHNL_OP_RESET_VF;
797 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
800 t0 = vlib_time_now (vm);
802 vlib_process_suspend (vm, suspend_time);
804 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
806 if (rstat == 2 || rstat == 3)
808 avf_log_debug (ad, "reset completed in %.3fs", t);
812 t = vlib_time_now (vm) - t0;
813 if (t > AVF_RESET_MAX_WAIT_TIME)
815 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
816 return clib_error_return (0, "reset failed (timeout)");
824 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
826 virtchnl_vf_res_request_t res_req = { 0 };
829 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
831 res_req.num_queue_pairs = num_queue_pairs;
833 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
835 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
836 sizeof (virtchnl_vf_res_request_t), &res_req,
837 sizeof (virtchnl_vf_res_request_t));
840 * if PF responds, the request failed
841 * else PF initializes restart and avf_send_to_pf returns an error
845 return clib_error_return (0, "requested more than %u queue pairs",
846 res_req.num_queue_pairs);
849 t0 = vlib_time_now (vm);
851 vlib_process_suspend (vm, suspend_time);
852 t = vlib_time_now (vm) - t0;
854 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
856 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
859 if (t > AVF_RESET_MAX_WAIT_TIME)
861 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
862 return clib_error_return (0, "request queues failed (timeout)");
873 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
874 avf_create_if_args_t * args)
876 virtchnl_version_info_t ver = { 0 };
877 virtchnl_vf_resource_t res = { 0 };
879 vlib_thread_main_t *tm = vlib_get_thread_main ();
882 avf_adminq_init (vm, ad);
884 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
887 /* we failed to get more queues, but still we want to proceed */
888 clib_error_free (error);
890 if ((error = avf_device_reset (vm, ad)))
894 avf_adminq_init (vm, ad);
899 if ((error = avf_op_version (vm, ad, &ver)))
902 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
903 ver.minor != VIRTCHNL_VERSION_MINOR)
904 return clib_error_return (0, "incompatible protocol version "
905 "(remote %d.%d)", ver.major, ver.minor);
908 * OP_GET_VF_RESOURCES
910 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
913 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
914 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
916 ad->vsi_id = res.vsi_res[0].vsi_id;
917 ad->feature_bitmap = res.vf_offload_flags;
918 ad->num_queue_pairs = res.num_queue_pairs;
919 ad->max_vectors = res.max_vectors;
920 ad->max_mtu = res.max_mtu;
921 ad->rss_key_size = res.rss_key_size;
922 ad->rss_lut_size = res.rss_lut_size;
924 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
927 * Disable VLAN stripping
929 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
935 if (args->rxq_num == 0)
939 else if (args->rxq_num > ad->num_queue_pairs)
941 args->rxq_num = ad->num_queue_pairs;
942 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
943 "Using %u rx queues.", args->rxq_num);
946 for (i = 0; i < args->rxq_num; i++)
947 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
950 for (i = 0; i < tm->n_vlib_mains; i++)
951 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
954 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
955 (error = avf_op_config_rss_lut (vm, ad)))
958 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
959 (error = avf_op_config_rss_key (vm, ad)))
962 if ((error = avf_op_config_vsi_queues (vm, ad)))
965 if ((error = avf_op_config_irq_map (vm, ad)))
968 avf_irq_0_enable (ad);
969 for (i = 0; i < ad->n_rx_queues; i++)
970 avf_irq_n_enable (ad, i);
972 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
975 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
976 pow2_mask (ad->n_tx_queues))))
979 ad->flags |= AVF_DEVICE_F_INITIALIZED;
984 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
986 avf_main_t *am = &avf_main;
987 vnet_main_t *vnm = vnet_get_main ();
988 virtchnl_pf_event_t *e;
991 if (ad->flags & AVF_DEVICE_F_ERROR)
994 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
997 ASSERT (ad->error == 0);
999 /* do not process device in reset state */
1000 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1001 if (r != VIRTCHNL_VFR_VFACTIVE)
1004 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1005 if ((r & 0xf0000000) != (1ULL << 31))
1007 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1008 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1012 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1013 if ((r & 0xf0000000) != (1ULL << 31))
1015 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1016 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1021 avf_op_get_stats (vm, ad, &ad->eth_stats);
1024 vec_foreach (e, ad->events)
1026 avf_log_debug (ad, "event: %s (%u) sev %d",
1027 virtchnl_event_names[e->event], e->event, e->severity);
1028 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1030 int link_up = e->event_data.link_event.link_status;
1031 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1035 avf_log_debug (ad, "event_link_change: status %d speed '%s' (%d)",
1037 speed < ARRAY_LEN (virtchnl_link_speed_str) ?
1038 virtchnl_link_speed_str[speed] : "unknown", speed);
1040 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1042 ad->flags |= AVF_DEVICE_F_LINK_UP;
1043 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1044 VNET_HW_INTERFACE_FLAG_LINK_UP);
1045 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1047 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1049 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1051 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1053 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1055 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1057 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1059 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1060 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index, kbps);
1061 ad->link_speed = speed;
1063 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1065 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1069 if (ad->flags & AVF_DEVICE_F_ELOG)
1071 ELOG_TYPE_DECLARE (el) =
1073 .format = "avf[%d] link change: link_status %d "
1075 .format_args = "i4i1i1",
1083 ed = ELOG_DATA (&vm->elog_main, el);
1084 ed->dev_instance = ad->dev_instance;
1085 ed->link_status = link_up;
1086 ed->link_speed = speed;
1091 if (ad->flags & AVF_DEVICE_F_ELOG)
1093 ELOG_TYPE_DECLARE (el) =
1095 .format = "avf[%d] unknown event: event %d severity %d",
1096 .format_args = "i4i4i1i1",
1104 ed = ELOG_DATA (&vm->elog_main, el);
1105 ed->dev_instance = ad->dev_instance;
1106 ed->event = e->event;
1107 ed->severity = e->severity;
1112 vec_reset_length (ad->events);
1117 ad->flags |= AVF_DEVICE_F_ERROR;
1118 ASSERT (ad->error != 0);
1119 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
1123 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1125 vlib_main_t *vm = vlib_get_main ();
1126 avf_main_t *am = &avf_main;
1127 avf_device_t *ad = vec_elt_at_index (am->devices, hw->dev_instance);
1128 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
1130 clib_error_t *error;
1131 int promisc_enabled = (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) != 0;
1132 u32 new_flags = promisc_enabled ?
1133 ad->flags | AVF_DEVICE_F_PROMISC : ad->flags & ~AVF_DEVICE_F_PROMISC;
1135 if (new_flags == ad->flags)
1138 if ((error = avf_config_promisc_mode (vm, ad, promisc_enabled)))
1140 avf_log_err (ad, "%s: %U", format_clib_error, error);
1141 clib_error_free (error);
1145 ad->flags = new_flags;
1151 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1153 avf_main_t *am = &avf_main;
1155 uword *event_data = 0, event_type;
1156 int enabled = 0, irq;
1157 f64 last_run_duration = 0;
1158 f64 last_periodic_time = 0;
1163 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1165 vlib_process_wait_for_event (vm);
1167 event_type = vlib_process_get_events (vm, &event_data);
1168 vec_reset_length (event_data);
1174 last_periodic_time = vlib_time_now (vm);
1176 case AVF_PROCESS_EVENT_START:
1179 case AVF_PROCESS_EVENT_STOP:
1182 case AVF_PROCESS_EVENT_AQ_INT:
1190 pool_foreach (ad, am->devices,
1192 avf_process_one_device (vm, ad, irq);
1195 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1201 VLIB_REGISTER_NODE (avf_process_node, static) = {
1202 .function = avf_process,
1203 .type = VLIB_NODE_TYPE_PROCESS,
1204 .name = "avf-process",
1209 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1211 avf_main_t *am = &avf_main;
1212 uword pd = vlib_pci_get_private_data (vm, h);
1213 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1216 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1218 if (ad->flags & AVF_DEVICE_F_ELOG)
1221 ELOG_TYPE_DECLARE (el) =
1223 .format = "avf[%d] irq 0: icr0 0x%x",
1224 .format_args = "i4i4",
1233 ed = ELOG_DATA (&vm->elog_main, el);
1234 ed->dev_instance = ad->dev_instance;
1238 avf_irq_0_enable (ad);
1240 /* bit 30 - Send/Receive Admin queue interrupt indication */
1241 if (icr0 & (1 << 30))
1242 vlib_process_signal_event (vm, avf_process_node.index,
1243 AVF_PROCESS_EVENT_AQ_INT, 0);
1247 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1249 vnet_main_t *vnm = vnet_get_main ();
1250 avf_main_t *am = &avf_main;
1251 uword pd = vlib_pci_get_private_data (vm, h);
1252 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1256 if (ad->flags & AVF_DEVICE_F_ELOG)
1259 ELOG_TYPE_DECLARE (el) =
1261 .format = "avf[%d] irq %d: received",
1262 .format_args = "i4i2",
1271 ed = ELOG_DATA (&vm->elog_main, el);
1272 ed->dev_instance = ad->dev_instance;
1277 if (vec_len (ad->rxqs) > qid && ad->rxqs[qid].int_mode != 0)
1278 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, qid);
1279 for (i = 0; i < vec_len (ad->rxqs); i++)
1280 avf_irq_n_enable (ad, i);
1284 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1286 vnet_main_t *vnm = vnet_get_main ();
1287 avf_main_t *am = &avf_main;
1290 if (ad->hw_if_index)
1292 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1293 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1294 ethernet_delete_interface (vnm, ad->hw_if_index);
1297 vlib_pci_device_close (vm, ad->pci_dev_handle);
1299 vlib_physmem_free (vm, ad->atq);
1300 vlib_physmem_free (vm, ad->arq);
1301 vlib_physmem_free (vm, ad->atq_bufs);
1302 vlib_physmem_free (vm, ad->arq_bufs);
1305 vec_foreach_index (i, ad->rxqs)
1307 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1308 vlib_physmem_free (vm, (void *) rxq->descs);
1309 if (rxq->n_enqueued)
1310 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1312 vec_free (rxq->bufs);
1315 vec_free (ad->rxqs);
1318 vec_foreach_index (i, ad->txqs)
1320 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1321 vlib_physmem_free (vm, (void *) txq->descs);
1322 if (txq->n_enqueued)
1324 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1325 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1328 vec_free (txq->bufs);
1329 clib_ring_free (txq->rs_slots);
1332 vec_free (ad->txqs);
1333 vec_free (ad->name);
1335 clib_error_free (ad->error);
1336 clib_memset (ad, 0, sizeof (*ad));
1337 pool_put (am->devices, ad);
1341 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1343 vnet_main_t *vnm = vnet_get_main ();
1344 avf_main_t *am = &avf_main;
1346 vlib_pci_dev_handle_t h;
1347 clib_error_t *error = 0;
1350 /* check input args */
1351 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1352 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1354 if ((args->rxq_size & (args->rxq_size - 1))
1355 || (args->txq_size & (args->txq_size - 1)))
1357 args->rv = VNET_API_ERROR_INVALID_VALUE;
1359 clib_error_return (error, "queue size must be a power of two");
1363 pool_get (am->devices, ad);
1364 ad->dev_instance = ad - am->devices;
1365 ad->per_interface_next_index = ~0;
1366 ad->name = vec_dup (args->name);
1368 if (args->enable_elog)
1369 ad->flags |= AVF_DEVICE_F_ELOG;
1371 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1374 pool_put (am->devices, ad);
1375 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1377 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1381 ad->pci_dev_handle = h;
1382 ad->pci_addr = args->addr;
1383 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1385 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1387 if ((error = vlib_pci_bus_master_enable (vm, h)))
1390 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1393 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1394 &avf_irq_0_handler)))
1397 if ((error = vlib_pci_register_msix_handler (vm, h, 1, 1,
1398 &avf_irq_n_handler)))
1401 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
1404 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1406 CLIB_CACHE_LINE_BYTES,
1410 error = vlib_physmem_last_error (vm);
1414 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1417 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1419 CLIB_CACHE_LINE_BYTES,
1423 error = vlib_physmem_last_error (vm);
1427 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1430 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1432 CLIB_CACHE_LINE_BYTES,
1434 if (ad->atq_bufs == 0)
1436 error = vlib_physmem_last_error (vm);
1440 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1443 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1445 CLIB_CACHE_LINE_BYTES,
1447 if (ad->arq_bufs == 0)
1449 error = vlib_physmem_last_error (vm);
1453 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1456 if ((error = vlib_pci_intr_enable (vm, h)))
1459 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1460 ad->flags |= AVF_DEVICE_F_VA_DMA;
1462 if ((error = avf_device_init (vm, am, ad, args)))
1465 /* create interface */
1466 error = ethernet_register_interface (vnm, avf_device_class.index,
1467 ad->dev_instance, ad->hwaddr,
1468 &ad->hw_if_index, avf_flag_change);
1473 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1474 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1476 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1477 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1478 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1479 avf_input_node.index);
1481 for (i = 0; i < ad->n_rx_queues; i++)
1482 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1484 if (pool_elts (am->devices) == 1)
1485 vlib_process_signal_event (vm, avf_process_node.index,
1486 AVF_PROCESS_EVENT_START, 0);
1491 avf_delete_if (vm, ad);
1492 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1493 args->error = clib_error_return (error, "pci-addr %U",
1494 format_vlib_pci_addr, &args->addr);
1495 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1498 static clib_error_t *
1499 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1501 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1502 avf_main_t *am = &avf_main;
1503 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1504 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1506 if (ad->flags & AVF_DEVICE_F_ERROR)
1507 return clib_error_return (0, "device is in error state");
1511 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1512 VNET_HW_INTERFACE_FLAG_LINK_UP);
1513 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1517 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1518 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1523 static clib_error_t *
1524 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1525 vnet_hw_interface_rx_mode mode)
1527 avf_main_t *am = &avf_main;
1528 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1529 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1530 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1532 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1541 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1544 avf_main_t *am = &avf_main;
1545 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1546 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1548 /* Shut off redirection */
1549 if (node_index == ~0)
1551 ad->per_interface_next_index = node_index;
1555 ad->per_interface_next_index =
1556 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1559 static char *avf_tx_func_error_strings[] = {
1561 foreach_avf_tx_func_error
1566 avf_clear_hw_interface_counters (u32 instance)
1568 avf_main_t *am = &avf_main;
1569 avf_device_t *ad = vec_elt_at_index (am->devices, instance);
1570 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1571 &ad->eth_stats, sizeof (ad->eth_stats));
1575 VNET_DEVICE_CLASS (avf_device_class,) =
1577 .name = "Adaptive Virtual Function (AVF) interface",
1578 .clear_counters = avf_clear_hw_interface_counters,
1579 .format_device = format_avf_device,
1580 .format_device_name = format_avf_device_name,
1581 .admin_up_down_function = avf_interface_admin_up_down,
1582 .rx_mode_change_function = avf_interface_rx_mode_change,
1583 .rx_redirect_to_node = avf_set_interface_next_node,
1584 .tx_function_n_errors = AVF_TX_N_ERROR,
1585 .tx_function_error_strings = avf_tx_func_error_strings,
1590 avf_init (vlib_main_t * vm)
1592 avf_main_t *am = &avf_main;
1593 vlib_thread_main_t *tm = vlib_get_thread_main ();
1595 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1596 CLIB_CACHE_LINE_BYTES);
1598 am->log_class = vlib_log_register_class ("avf", 0);
1599 vlib_log_debug (am->log_class, "initialized");
1605 VLIB_INIT_FUNCTION (avf_init) =
1607 .runs_after = VLIB_INITS ("pci_bus_init"),
1612 * fd.io coding-style-patch-verification: ON
1615 * eval: (c-set-style "gnu")