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 <vlib/unix/unix.h>
20 #include <vlib/pci/pci.h>
21 #include <vnet/ethernet/ethernet.h>
25 #define AVF_MBOX_LEN 64
26 #define AVF_MBOX_BUF_SZ 512
27 #define AVF_RXQ_SZ 512
28 #define AVF_TXQ_SZ 512
29 #define AVF_ITR_INT 8160
31 #define PCI_VENDOR_ID_INTEL 0x8086
32 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
33 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
34 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
38 static pci_device_id_t avf_pci_device_ids[] = {
39 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
40 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
41 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
46 avf_irq_0_disable (avf_device_t * ad)
48 u32 dyn_ctl0 = 0, icr0_ena = 0;
50 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
52 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
53 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
58 avf_irq_0_enable (avf_device_t * ad)
60 u32 dyn_ctl0 = 0, icr0_ena = 0;
62 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
64 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
65 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
66 //dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
67 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
69 avf_irq_0_disable (ad);
70 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
71 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
76 avf_irq_n_disable (avf_device_t * ad, u8 line)
80 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
85 avf_irq_n_enable (avf_device_t * ad, u8 line)
89 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
90 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
91 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
93 avf_irq_n_disable (ad, line);
94 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
100 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
103 avf_main_t *am = &avf_main;
104 clib_error_t *err = 0;
105 avf_aq_desc_t *d, dc;
108 d = &ad->atq[ad->atq_next_slot];
109 clib_memcpy (d, dt, sizeof (avf_aq_desc_t));
110 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
116 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
117 d->addr_hi = (u32) (pa >> 32);
118 d->addr_lo = (u32) pa;
119 clib_memcpy (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ, data,
121 d->flags |= AVF_AQ_F_BUF;
124 if (ad->flags & AVF_DEVICE_F_ELOG)
125 clib_memcpy (&dc, d, sizeof (avf_aq_desc_t));
127 CLIB_MEMORY_BARRIER ();
128 vlib_log_debug (am->log_class, "%U", format_hexdump, data, len);
129 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
130 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
134 vlib_process_suspend (vm, 10e-6);
136 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
140 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
147 clib_memcpy (dt, d, sizeof (avf_aq_desc_t));
148 if (d->flags & AVF_AQ_F_ERR)
149 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
150 "%d]", d->opcode, d->retval);
153 if (ad->flags & AVF_DEVICE_F_ELOG)
156 ELOG_TYPE_DECLARE (el) =
158 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
159 "datalen %d retval %d",
160 .format_args = "i4i2i2i2i2i2",
171 ed = ELOG_DATA (&vm->elog_main, el);
172 ed->dev_instance = ad->dev_instance;
173 ed->s_flags = dc.flags;
174 ed->r_flags = d->flags;
175 ed->opcode = dc.opcode;
176 ed->datalen = dc.datalen;
177 ed->retval = d->retval;
185 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
189 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
190 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
192 if (ad->flags & AVF_DEVICE_F_ELOG)
195 ELOG_TYPE_DECLARE (el) =
197 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
198 .format_args = "i4i4i4",
206 ed = ELOG_DATA (&vm->elog_main, el);
207 ed->dev_instance = ad->dev_instance;
216 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
218 avf_main_t *am = &avf_main;
220 clib_error_t *error = 0;
223 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
224 rxq = vec_elt_at_index (ad->rxqs, qid);
225 rxq->size = rxq_size;
227 rxq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
228 rxq->size * sizeof (avf_rx_desc_t),
229 2 * CLIB_CACHE_LINE_BYTES);
230 memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
231 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
232 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
234 n_alloc = vlib_buffer_alloc (vm, rxq->bufs, rxq->size - 8);
237 return clib_error_return (0, "buffer allocation error");
239 rxq->n_enqueued = n_alloc;
240 avf_rx_desc_t *d = rxq->descs;
241 for (i = 0; i < n_alloc; i++)
243 if (ad->flags & AVF_DEVICE_F_IOVA)
245 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
246 d->qword[0] = pointer_to_uword (b->data);
250 vlib_get_buffer_data_physical_address (vm, rxq->bufs[i]);
257 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
259 avf_main_t *am = &avf_main;
261 clib_error_t *error = 0;
263 if (qid >= ad->num_queue_pairs)
265 qid = qid % ad->num_queue_pairs;
266 txq = vec_elt_at_index (ad->txqs, qid);
268 clib_spinlock_init (&txq->lock);
269 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
273 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
274 txq = vec_elt_at_index (ad->txqs, qid);
275 txq->size = txq_size;
277 txq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
278 txq->size * sizeof (avf_tx_desc_t),
279 2 * CLIB_CACHE_LINE_BYTES);
280 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
281 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
289 } virtchnl_promisc_info_t;
292 avf_arq_slot_init (avf_device_t * ad, u16 slot)
295 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
297 memset (d, 0, sizeof (avf_aq_desc_t));
298 d->flags = AVF_AQ_F_BUF;
299 d->datalen = AVF_MBOX_BUF_SZ;
300 d->addr_hi = (u32) (pa >> 32);
301 d->addr_lo = (u32) pa;
305 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
307 avf_main_t *am = &avf_main;
308 return (ad->flags & AVF_DEVICE_F_IOVA) ?
309 pointer_to_uword (p) :
310 vlib_physmem_virtual_to_physical (vm, am->physmem_region, p);
314 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
319 /* VF MailBox Transmit */
320 memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
321 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
323 pa = avf_dma_addr (vm, ad, ad->atq);
324 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
325 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
326 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
327 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
328 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
330 /* VF MailBox Receive */
331 memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
332 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
334 for (i = 0; i < AVF_MBOX_LEN; i++)
335 avf_arq_slot_init (ad, i);
337 pa = avf_dma_addr (vm, ad, ad->arq);
339 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
340 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
341 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
342 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
343 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
344 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
346 ad->atq_next_slot = 0;
347 ad->arq_next_slot = 0;
351 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
352 void *in, int in_len, void *out, int out_len)
355 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
360 /* supppres interrupt in the next adminq receive slot
361 as we are going to wait for response
362 we only need interrupts when event is received */
363 d = &ad->arq[ad->arq_next_slot];
364 d->flags |= AVF_AQ_F_SI;
366 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
370 head = avf_get_u32 (ad->bar0, AVF_ARQH);
372 if (ad->arq_next_slot == head)
375 return clib_error_return (0, "timeout");
376 vlib_process_suspend (vm, 10e-3);
380 d = &ad->arq[ad->arq_next_slot];
382 if (d->v_opcode == VIRTCHNL_OP_EVENT)
384 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
385 virtchnl_pf_event_t *e;
387 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
388 ((d->flags & AVF_AQ_F_BUF) == 0))
389 return clib_error_return (0, "event message error");
391 vec_add2 (ad->events, e, 1);
392 clib_memcpy (e, buf, sizeof (virtchnl_pf_event_t));
393 avf_arq_slot_init (ad, ad->arq_next_slot);
399 if (d->v_opcode != op)
402 clib_error_return (0,
403 "unexpected message receiver [v_opcode = %u, "
404 "expected %u, v_retval %d]", d->v_opcode, op,
411 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
412 d->v_opcode, d->v_retval);
416 if (d->flags & AVF_AQ_F_BUF)
418 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
419 clib_memcpy (out, buf, out_len);
422 avf_arq_slot_init (ad, ad->arq_next_slot);
423 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
425 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
429 if (ad->flags & AVF_DEVICE_F_ELOG)
432 ELOG_TYPE_DECLARE (el) =
434 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
435 .format_args = "i4t4i4i4",
436 .n_enum_strings = VIRTCHNL_N_OPS,
438 #define _(v, n) [v] = #n,
450 ed = ELOG_DATA (&vm->elog_main, el);
451 ed->dev_instance = ad->dev_instance;
453 ed->v_opcode_val = op;
454 ed->v_retval = d->v_retval;
461 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
462 virtchnl_version_info_t * ver)
464 clib_error_t *err = 0;
465 virtchnl_version_info_t myver = {
466 .major = VIRTCHNL_VERSION_MAJOR,
467 .minor = VIRTCHNL_VERSION_MINOR,
470 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
471 sizeof (virtchnl_version_info_t), ver,
472 sizeof (virtchnl_version_info_t));
481 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
482 virtchnl_vf_resource_t * res)
484 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
485 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
486 VIRTCHNL_VF_OFFLOAD_RX_POLLING);
488 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
489 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
493 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
495 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
497 virtchnl_rss_lut_t *rl;
499 memset (msg, 0, msg_len);
500 rl = (virtchnl_rss_lut_t *) msg;
501 rl->vsi_id = ad->vsi_id;
502 rl->lut_entries = ad->rss_lut_size;
504 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
509 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
511 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
516 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
518 virtchnl_promisc_info_t pi = { 0 };
520 pi.vsi_id = ad->vsi_id;
522 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
523 sizeof (virtchnl_promisc_info_t), 0, 0);
528 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
531 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
532 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
533 sizeof (virtchnl_queue_pair_info_t);
535 virtchnl_vsi_queue_config_info_t *ci;
537 memset (msg, 0, msg_len);
538 ci = (virtchnl_vsi_queue_config_info_t *) msg;
539 ci->vsi_id = ad->vsi_id;
540 ci->num_queue_pairs = n_qp;
542 for (i = 0; i < n_qp; i++)
544 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
545 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
547 rxq->vsi_id = ad->vsi_id;
549 rxq->max_pkt_size = 1518;
550 if (i < vec_len (ad->rxqs))
552 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
553 rxq->ring_len = q->size;
554 rxq->databuffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
555 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
556 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
559 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
560 txq->vsi_id = ad->vsi_id;
561 if (i < vec_len (ad->txqs))
564 txq->ring_len = q->size;
565 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
569 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
574 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
577 int msg_len = sizeof (virtchnl_irq_map_info_t) +
578 count * sizeof (virtchnl_vector_map_t);
580 virtchnl_irq_map_info_t *imi;
582 memset (msg, 0, msg_len);
583 imi = (virtchnl_irq_map_info_t *) msg;
584 imi->num_vectors = count;
586 imi->vecmap[0].vector_id = 1;
587 imi->vecmap[0].vsi_id = ad->vsi_id;
588 imi->vecmap[0].rxq_map = 1;
589 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
594 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
597 sizeof (virtchnl_ether_addr_list_t) +
598 count * sizeof (virtchnl_ether_addr_t);
600 virtchnl_ether_addr_list_t *al;
603 memset (msg, 0, msg_len);
604 al = (virtchnl_ether_addr_list_t *) msg;
605 al->vsi_id = ad->vsi_id;
606 al->num_elements = count;
607 for (i = 0; i < count; i++)
608 clib_memcpy (&al->list[i].addr, macs + i * 6, 6);
609 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
614 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
616 virtchnl_queue_select_t qs = { 0 };
617 qs.vsi_id = ad->vsi_id;
620 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, 0);
621 avf_reg_write (ad, AVF_QRX_TAIL (0), rxq->n_enqueued);
622 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
623 sizeof (virtchnl_queue_select_t), 0, 0);
627 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
628 virtchnl_eth_stats_t * es)
630 virtchnl_queue_select_t qs = { 0 };
631 qs.vsi_id = ad->vsi_id;
632 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
633 &qs, sizeof (virtchnl_queue_select_t),
634 es, sizeof (virtchnl_eth_stats_t));
638 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
640 avf_aq_desc_t d = { 0 };
646 d.v_opcode = VIRTCHNL_OP_RESET_VF;
647 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
651 vlib_process_suspend (vm, 10e-3);
652 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
654 if (rstat == 2 || rstat == 3)
658 return clib_error_return (0, "reset failed (timeout)");
664 avf_device_init (vlib_main_t * vm, avf_device_t * ad,
665 avf_create_if_args_t * args)
667 virtchnl_version_info_t ver = { 0 };
668 virtchnl_vf_resource_t res = { 0 };
670 vlib_thread_main_t *tm = vlib_get_thread_main ();
673 avf_adminq_init (vm, ad);
675 if ((error = avf_device_reset (vm, ad)))
678 avf_adminq_init (vm, ad);
683 if ((error = avf_op_version (vm, ad, &ver)))
686 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
687 ver.minor != VIRTCHNL_VERSION_MINOR)
688 return clib_error_return (0, "incompatible protocol version "
689 "(remote %d.%d)", ver.major, ver.minor);
694 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
697 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
698 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
700 ad->vsi_id = res.vsi_res[0].vsi_id;
701 ad->feature_bitmap = res.vf_offload_flags;
702 ad->num_queue_pairs = res.num_queue_pairs;
703 ad->max_vectors = res.max_vectors;
704 ad->max_mtu = res.max_mtu;
705 ad->rss_key_size = res.rss_key_size;
706 ad->rss_lut_size = res.rss_lut_size;
708 clib_memcpy (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
711 * Disable VLAN stripping
713 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
716 if ((error = avf_config_promisc_mode (vm, ad)))
719 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
720 (error = avf_op_config_rss_lut (vm, ad)))
726 if ((error = avf_rxq_init (vm, ad, 0, args->rxq_size)))
729 for (i = 0; i < tm->n_vlib_mains; i++)
730 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
733 if ((error = avf_op_config_vsi_queues (vm, ad)))
736 if ((error = avf_op_config_irq_map (vm, ad)))
739 avf_irq_0_enable (ad);
740 avf_irq_n_enable (ad, 0);
742 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
745 if ((error = avf_op_enable_queues (vm, ad, 1, 0)))
748 if ((error = avf_op_enable_queues (vm, ad, 0, 1)))
751 ad->flags |= AVF_DEVICE_F_INITIALIZED;
756 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
758 avf_main_t *am = &avf_main;
759 vnet_main_t *vnm = vnet_get_main ();
760 virtchnl_pf_event_t *e;
763 if (ad->flags & AVF_DEVICE_F_ERROR)
766 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
769 ASSERT (ad->error == 0);
771 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
772 if ((r & 0xf0000000) != (1ULL << 31))
774 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
778 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
779 if ((r & 0xf0000000) != (1ULL << 31))
781 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
786 avf_op_get_stats (vm, ad, &ad->eth_stats);
789 vec_foreach (e, ad->events)
791 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
793 int link_up = e->event_data.link_event.link_status;
794 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
797 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
799 ad->flags |= AVF_DEVICE_F_LINK_UP;
800 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
801 VNET_HW_INTERFACE_FLAG_LINK_UP);
802 if (speed == VIRTCHNL_LINK_SPEED_40GB)
803 flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
804 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
805 flags |= VNET_HW_INTERFACE_FLAG_SPEED_25G;
806 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
807 flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
808 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
809 flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
810 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
811 flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
812 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
813 ad->link_speed = speed;
815 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
817 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
821 if (ad->flags & AVF_DEVICE_F_ELOG)
823 ELOG_TYPE_DECLARE (el) =
825 .format = "avf[%d] link change: link_status %d "
827 .format_args = "i4i1i1",
835 ed = ELOG_DATA (&vm->elog_main, el);
836 ed->dev_instance = ad->dev_instance;
837 ed->link_status = link_up;
838 ed->link_speed = speed;
843 if (ad->flags & AVF_DEVICE_F_ELOG)
845 ELOG_TYPE_DECLARE (el) =
847 .format = "avf[%d] unknown event: event %d severity %d",
848 .format_args = "i4i4i1i1",
856 ed = ELOG_DATA (&vm->elog_main, el);
857 ed->dev_instance = ad->dev_instance;
858 ed->event = e->event;
859 ed->severity = e->severity;
864 vec_reset_length (ad->events);
869 ad->flags |= AVF_DEVICE_F_ERROR;
870 ASSERT (ad->error != 0);
871 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
875 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
877 avf_main_t *am = &avf_main;
878 vlib_log_warn (am->log_class, "TODO");
883 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
885 avf_main_t *am = &avf_main;
887 uword *event_data = 0, event_type;
888 int enabled = 0, irq;
889 f64 last_run_duration = 0;
890 f64 last_periodic_time = 0;
895 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
897 vlib_process_wait_for_event (vm);
899 event_type = vlib_process_get_events (vm, &event_data);
900 vec_reset_length (event_data);
906 last_periodic_time = vlib_time_now (vm);
908 case AVF_PROCESS_EVENT_START:
911 case AVF_PROCESS_EVENT_STOP:
914 case AVF_PROCESS_EVENT_AQ_INT:
922 pool_foreach (ad, am->devices,
924 avf_process_one_device (vm, ad, irq);
927 last_run_duration = vlib_time_now (vm) - last_periodic_time;
933 VLIB_REGISTER_NODE (avf_process_node, static) = {
934 .function = avf_process,
935 .type = VLIB_NODE_TYPE_PROCESS,
936 .name = "avf-process",
941 avf_irq_0_handler (vlib_pci_dev_handle_t h, u16 line)
943 vlib_main_t *vm = vlib_get_main ();
944 avf_main_t *am = &avf_main;
945 uword pd = vlib_pci_get_private_data (h);
946 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
949 icr0 = avf_reg_read (ad, AVFINT_ICR0);
951 if (ad->flags & AVF_DEVICE_F_ELOG)
954 ELOG_TYPE_DECLARE (el) =
956 .format = "avf[%d] irq 0: icr0 0x%x",
957 .format_args = "i4i4",
966 ed = ELOG_DATA (&vm->elog_main, el);
967 ed->dev_instance = ad->dev_instance;
971 avf_irq_0_enable (ad);
973 /* bit 30 - Send/Receive Admin queue interrupt indication */
974 if (icr0 & (1 << 30))
975 vlib_process_signal_event (vm, avf_process_node.index,
976 AVF_PROCESS_EVENT_AQ_INT, 0);
980 avf_irq_n_handler (vlib_pci_dev_handle_t h, u16 line)
982 vnet_main_t *vnm = vnet_get_main ();
983 vlib_main_t *vm = vlib_get_main ();
984 avf_main_t *am = &avf_main;
985 uword pd = vlib_pci_get_private_data (h);
986 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
988 if (ad->flags & AVF_DEVICE_F_ELOG)
991 ELOG_TYPE_DECLARE (el) =
993 .format = "avf[%d] irq %d: received",
994 .format_args = "i4i2",
1003 ed = ELOG_DATA (&vm->elog_main, el);
1004 ed->dev_instance = ad->dev_instance;
1008 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, 0);
1009 avf_irq_n_enable (ad, 0);
1013 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1015 vnet_main_t *vnm = vnet_get_main ();
1016 avf_main_t *am = &avf_main;
1019 if (ad->hw_if_index)
1021 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1022 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1023 ethernet_delete_interface (vnm, ad->hw_if_index);
1026 vlib_pci_device_close (ad->pci_dev_handle);
1028 vlib_physmem_free (vm, am->physmem_region, ad->atq);
1029 vlib_physmem_free (vm, am->physmem_region, ad->arq);
1030 vlib_physmem_free (vm, am->physmem_region, ad->atq_bufs);
1031 vlib_physmem_free (vm, am->physmem_region, ad->arq_bufs);
1034 vec_foreach_index (i, ad->rxqs)
1036 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1037 vlib_physmem_free (vm, am->physmem_region, (void *) rxq->descs);
1038 if (rxq->n_enqueued)
1039 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1041 vec_free (rxq->bufs);
1044 vec_free (ad->rxqs);
1047 vec_foreach_index (i, ad->txqs)
1049 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1050 vlib_physmem_free (vm, am->physmem_region, (void *) txq->descs);
1051 if (txq->n_enqueued)
1053 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1054 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1057 vec_free (txq->bufs);
1060 vec_free (ad->txqs);
1062 clib_error_free (ad->error);
1063 memset (ad, 0, sizeof (*ad));
1064 pool_put (am->devices, ad);
1068 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1070 vnet_main_t *vnm = vnet_get_main ();
1071 avf_main_t *am = &avf_main;
1073 vlib_pci_dev_handle_t h;
1074 clib_error_t *error = 0;
1076 /* check input args */
1077 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1078 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1080 if ((args->rxq_size & (args->rxq_size - 1))
1081 || (args->txq_size & (args->txq_size - 1)))
1083 args->rv = VNET_API_ERROR_INVALID_VALUE;
1085 clib_error_return (error, "queue size must be a power of two");
1089 pool_get (am->devices, ad);
1090 ad->dev_instance = ad - am->devices;
1091 ad->per_interface_next_index = ~0;
1093 if (args->enable_elog)
1094 ad->flags |= AVF_DEVICE_F_ELOG;
1096 if ((error = vlib_pci_device_open (&args->addr, avf_pci_device_ids, &h)))
1098 pool_put (am->devices, ad);
1099 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1101 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1105 ad->pci_dev_handle = h;
1107 vlib_pci_set_private_data (h, ad->dev_instance);
1109 if ((error = vlib_pci_bus_master_enable (h)))
1112 if ((error = vlib_pci_map_region (h, 0, &ad->bar0)))
1115 if ((error = vlib_pci_register_msix_handler (h, 0, 1, &avf_irq_0_handler)))
1118 if ((error = vlib_pci_register_msix_handler (h, 1, 1, &avf_irq_n_handler)))
1121 if ((error = vlib_pci_enable_msix_irq (h, 0, 2)))
1124 if (am->physmem_region_alloc == 0)
1126 u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
1127 error = vlib_physmem_region_alloc (vm, "avf descriptors", 4 << 20, 0,
1128 flags, &am->physmem_region);
1131 am->physmem_region_alloc = 1;
1133 ad->atq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1134 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1139 ad->arq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1140 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1145 ad->atq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1146 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1151 ad->arq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1152 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1157 if ((error = vlib_pci_intr_enable (h)))
1161 ad->flags |= AVF_DEVICE_F_IOVA;
1163 if ((error = avf_device_init (vm, ad, args)))
1166 /* create interface */
1167 error = ethernet_register_interface (vnm, avf_device_class.index,
1168 ad->dev_instance, ad->hwaddr,
1169 &ad->hw_if_index, avf_flag_change);
1174 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1175 ad->sw_if_index = sw->sw_if_index;
1177 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1178 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1179 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1180 avf_input_node.index);
1182 if (pool_elts (am->devices) == 1)
1183 vlib_process_signal_event (vm, avf_process_node.index,
1184 AVF_PROCESS_EVENT_START, 0);
1189 avf_delete_if (vm, ad);
1190 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1191 args->error = clib_error_return (error, "pci-addr %U",
1192 format_vlib_pci_addr, &args->addr);
1193 vlib_log_err (am->log_class, "%U", format_clib_error, args->error);
1196 static clib_error_t *
1197 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1199 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1200 avf_main_t *am = &avf_main;
1201 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1202 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1204 if (ad->flags & AVF_DEVICE_F_ERROR)
1205 return clib_error_return (0, "device is in error state");
1209 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1210 VNET_HW_INTERFACE_FLAG_LINK_UP);
1211 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1212 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, 0, ~0);
1216 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1217 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1223 VNET_DEVICE_CLASS (avf_device_class,) =
1225 .name = "Adaptive Virtual Function (AVF) interface",
1226 .tx_function = avf_interface_tx,
1227 .format_device = format_avf_device,
1228 .format_device_name = format_avf_device_name,
1229 .admin_up_down_function = avf_interface_admin_up_down,
1234 avf_init (vlib_main_t * vm)
1236 avf_main_t *am = &avf_main;
1237 clib_error_t *error;
1238 vlib_thread_main_t *tm = vlib_get_thread_main ();
1241 if ((error = vlib_call_init_function (vm, pci_bus_init)))
1244 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1245 CLIB_CACHE_LINE_BYTES);
1247 /* initialize ptype based loopup table */
1248 vec_validate_aligned (am->ptypes, 255, CLIB_CACHE_LINE_BYTES);
1251 vec_foreach_index (i, am->ptypes)
1253 avf_ptype_t *p = vec_elt_at_index (am->ptypes, i);
1254 if ((i >= 22) && (i <= 87))
1256 p->next_node = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
1257 p->flags = VNET_BUFFER_F_IS_IP4;
1259 else if ((i >= 88) && (i <= 153))
1261 p->next_node = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
1262 p->flags = VNET_BUFFER_F_IS_IP6;
1265 p->next_node = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
1266 p->buffer_advance = device_input_next_node_advance[p->next_node];
1267 p->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
1271 am->log_class = vlib_log_register_class ("avf_plugin", 0);
1272 vlib_log_debug (am->log_class, "initialized");
1277 VLIB_INIT_FUNCTION (avf_init);
1280 * fd.io coding-style-patch-verification: ON
1283 * eval: (c-set-style "gnu")