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},
45 avf_irq_0_disable (avf_device_t * ad)
47 u32 dyn_ctl0 = 0, icr0_ena = 0;
49 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
51 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
52 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
57 avf_irq_0_enable (avf_device_t * ad)
59 u32 dyn_ctl0 = 0, icr0_ena = 0;
61 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
63 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
64 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
65 //dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
66 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
68 avf_irq_0_disable (ad);
69 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
70 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
75 avf_irq_n_disable (avf_device_t * ad, u8 line)
79 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
84 avf_irq_n_enable (avf_device_t * ad, u8 line)
88 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
89 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
90 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
92 avf_irq_n_disable (ad, line);
93 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
99 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
102 avf_main_t *am = &avf_main;
103 clib_error_t *err = 0;
104 avf_aq_desc_t *d, dc;
107 d = &ad->atq[ad->atq_next_slot];
108 clib_memcpy (d, dt, sizeof (avf_aq_desc_t));
109 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
115 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
116 d->addr_hi = (u32) (pa >> 32);
117 d->addr_lo = (u32) pa;
118 clib_memcpy (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ, data,
120 d->flags |= AVF_AQ_F_BUF;
123 if (ad->flags & AVF_DEVICE_F_ELOG)
124 clib_memcpy (&dc, d, sizeof (avf_aq_desc_t));
126 CLIB_MEMORY_BARRIER ();
127 vlib_log_debug (am->log_class, "%U", format_hexdump, data, len);
128 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
129 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
133 vlib_process_suspend (vm, 10e-6);
135 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
139 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
146 clib_memcpy (dt, d, sizeof (avf_aq_desc_t));
147 if (d->flags & AVF_AQ_F_ERR)
148 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
149 "%d]", d->opcode, d->retval);
152 if (ad->flags & AVF_DEVICE_F_ELOG)
155 ELOG_TYPE_DECLARE (el) =
157 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
158 "datalen %d retval %d",
159 .format_args = "i4i2i2i2i2i2",
170 ed = ELOG_DATA (&vm->elog_main, el);
171 ed->dev_instance = ad->dev_instance;
172 ed->s_flags = dc.flags;
173 ed->r_flags = d->flags;
174 ed->opcode = dc.opcode;
175 ed->datalen = dc.datalen;
176 ed->retval = d->retval;
184 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
188 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
189 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
191 if (ad->flags & AVF_DEVICE_F_ELOG)
194 ELOG_TYPE_DECLARE (el) =
196 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
197 .format_args = "i4i4i4",
205 ed = ELOG_DATA (&vm->elog_main, el);
206 ed->dev_instance = ad->dev_instance;
215 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid)
217 avf_main_t *am = &avf_main;
219 clib_error_t *error = 0;
222 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
223 rxq = vec_elt_at_index (ad->rxqs, qid);
224 rxq->size = AVF_RXQ_SZ;
226 rxq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
227 rxq->size * sizeof (avf_rx_desc_t),
228 2 * CLIB_CACHE_LINE_BYTES);
229 memset (rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
230 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
231 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
233 n_alloc = vlib_buffer_alloc (vm, rxq->bufs, rxq->size - 8);
236 return clib_error_return (0, "buffer allocation error");
238 rxq->n_bufs = n_alloc;
239 avf_rx_desc_t *d = rxq->descs;
240 for (i = 0; i < n_alloc; i++)
242 if (ad->flags & AVF_DEVICE_F_IOVA)
244 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
245 d->qword[0] = pointer_to_uword (b->data);
249 vlib_get_buffer_data_physical_address (vm, rxq->bufs[i]);
256 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid)
258 avf_main_t *am = &avf_main;
260 clib_error_t *error = 0;
262 if (qid >= ad->num_queue_pairs)
264 qid = qid % ad->num_queue_pairs;
265 txq = vec_elt_at_index (ad->txqs, qid);
267 clib_spinlock_init (&txq->lock);
268 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
272 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
273 txq = vec_elt_at_index (ad->txqs, qid);
274 txq->size = AVF_TXQ_SZ;
276 txq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
277 txq->size * sizeof (avf_tx_desc_t),
278 2 * CLIB_CACHE_LINE_BYTES);
279 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
280 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
288 } virtchnl_promisc_info_t;
291 avf_arq_slot_init (avf_device_t * ad, u16 slot)
294 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
296 memset (d, 0, sizeof (avf_aq_desc_t));
297 d->flags = AVF_AQ_F_BUF;
298 d->datalen = AVF_MBOX_BUF_SZ;
299 d->addr_hi = (u32) (pa >> 32);
300 d->addr_lo = (u32) pa;
304 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
306 avf_main_t *am = &avf_main;
307 return (ad->flags & AVF_DEVICE_F_IOVA) ?
308 pointer_to_uword (p) :
309 vlib_physmem_virtual_to_physical (vm, am->physmem_region, p);
313 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
318 /* VF MailBox Transmit */
319 memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
320 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
322 pa = avf_dma_addr (vm, ad, ad->atq);
323 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
324 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
325 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1 << 31)); /* len & ena */
326 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
327 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
329 /* VF MailBox Receive */
330 memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
331 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
333 for (i = 0; i < AVF_MBOX_LEN; i++)
334 avf_arq_slot_init (ad, i);
336 pa = avf_dma_addr (vm, ad, ad->arq);
338 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
339 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
340 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1 << 31)); /* len & ena */
341 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
342 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
343 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
345 ad->atq_next_slot = 0;
346 ad->arq_next_slot = 0;
350 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
351 void *in, int in_len, void *out, int out_len)
354 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
359 /* supppres interrupt in the next adminq receive slot
360 as we are going to wait for response
361 we only need interrupts when event is received */
362 d = &ad->arq[ad->arq_next_slot];
363 d->flags |= AVF_AQ_F_SI;
365 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
369 head = avf_get_u32 (ad->bar0, AVF_ARQH);
371 if (ad->arq_next_slot == head)
374 return clib_error_return (0, "timeout");
375 vlib_process_suspend (vm, 10e-3);
379 d = &ad->arq[ad->arq_next_slot];
381 if (d->v_opcode == VIRTCHNL_OP_EVENT)
383 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
384 virtchnl_pf_event_t *e;
386 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
387 ((d->flags & AVF_AQ_F_BUF) == 0))
388 return clib_error_return (0, "event message error");
390 vec_add2 (ad->events, e, 1);
391 clib_memcpy (e, buf, sizeof (virtchnl_pf_event_t));
392 avf_arq_slot_init (ad, ad->arq_next_slot);
398 if (d->v_opcode != op)
400 err = clib_error_return (0, "unexpected message receiver [v_opcode = %u"
401 "expected %u]", d->v_opcode, op);
407 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
408 d->v_opcode, d->v_retval);
412 if (d->flags & AVF_AQ_F_BUF)
414 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
415 clib_memcpy (out, buf, out_len);
418 avf_arq_slot_init (ad, ad->arq_next_slot);
419 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
421 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
425 if (ad->flags & AVF_DEVICE_F_ELOG)
428 ELOG_TYPE_DECLARE (el) =
430 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
431 .format_args = "i4t4i4i4",
432 .n_enum_strings = VIRTCHNL_N_OPS,
434 #define _(v, n) [v] = #n,
446 ed = ELOG_DATA (&vm->elog_main, el);
447 ed->dev_instance = ad->dev_instance;
449 ed->v_opcode_val = op;
450 ed->v_retval = d->v_retval;
457 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
458 virtchnl_version_info_t * ver)
460 clib_error_t *err = 0;
461 virtchnl_version_info_t myver = {
462 .major = VIRTCHNL_VERSION_MAJOR,
463 .minor = VIRTCHNL_VERSION_MINOR,
466 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
467 sizeof (virtchnl_version_info_t), ver,
468 sizeof (virtchnl_version_info_t));
477 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
478 virtchnl_vf_resource_t * res)
480 clib_error_t *err = 0;
481 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_AQ |
482 VIRTCHNL_VF_OFFLOAD_RSS_REG | VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
483 VIRTCHNL_VF_OFFLOAD_VLAN | VIRTCHNL_VF_OFFLOAD_RX_POLLING);
485 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
486 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
495 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
497 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
502 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
504 virtchnl_promisc_info_t pi = { 0 };
506 pi.vsi_id = ad->vsi_id;
508 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
509 sizeof (virtchnl_promisc_info_t), 0, 0);
514 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
517 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
518 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
519 sizeof (virtchnl_queue_pair_info_t);
521 virtchnl_vsi_queue_config_info_t *ci;
523 memset (msg, 0, msg_len);
524 ci = (virtchnl_vsi_queue_config_info_t *) msg;
525 ci->vsi_id = ad->vsi_id;
526 ci->num_queue_pairs = n_qp;
528 for (i = 0; i < n_qp; i++)
530 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
531 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
533 rxq->vsi_id = ad->vsi_id;
535 rxq->max_pkt_size = 1518;
536 if (i < vec_len (ad->rxqs))
538 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
539 rxq->ring_len = q->size;
540 rxq->databuffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
541 rxq->dma_ring_addr = avf_dma_addr (vm, ad, q->descs);
542 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
545 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
546 txq->vsi_id = ad->vsi_id;
547 if (i < vec_len (ad->txqs))
550 txq->ring_len = q->size;
551 txq->dma_ring_addr = avf_dma_addr (vm, ad, q->descs);
555 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
560 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
563 int msg_len = sizeof (virtchnl_irq_map_info_t) +
564 count * sizeof (virtchnl_vector_map_t);
566 virtchnl_irq_map_info_t *imi;
568 memset (msg, 0, msg_len);
569 imi = (virtchnl_irq_map_info_t *) msg;
570 imi->num_vectors = count;
572 imi->vecmap[0].vector_id = 1;
573 imi->vecmap[0].vsi_id = ad->vsi_id;
574 imi->vecmap[0].rxq_map = 1;
575 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
580 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
583 sizeof (virtchnl_ether_addr_list_t) +
584 count * sizeof (virtchnl_ether_addr_t);
586 virtchnl_ether_addr_list_t *al;
589 memset (msg, 0, msg_len);
590 al = (virtchnl_ether_addr_list_t *) msg;
591 al->vsi_id = ad->vsi_id;
592 al->num_elements = count;
593 for (i = 0; i < count; i++)
594 clib_memcpy (&al->list[i].addr, macs + i * 6, 6);
595 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
600 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
602 virtchnl_queue_select_t qs = { 0 };
603 qs.vsi_id = ad->vsi_id;
606 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, 0);
607 avf_reg_write (ad, AVF_QRX_TAIL (0), rxq->n_bufs);
608 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
609 sizeof (virtchnl_queue_select_t), 0, 0);
613 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
614 virtchnl_eth_stats_t * es)
616 virtchnl_queue_select_t qs = { 0 };
617 qs.vsi_id = ad->vsi_id;
618 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
619 &qs, sizeof (virtchnl_queue_select_t),
620 es, sizeof (virtchnl_eth_stats_t));
624 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
626 avf_aq_desc_t d = { 0 };
632 d.v_opcode = VIRTCHNL_OP_RESET_VF;
633 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
637 vlib_process_suspend (vm, 10e-3);
638 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
640 if (rstat == 2 || rstat == 3)
644 return clib_error_return (0, "reset failed (timeout)");
650 avf_device_init (vlib_main_t * vm, avf_device_t * ad)
652 virtchnl_version_info_t ver = { 0 };
653 virtchnl_vf_resource_t res = { 0 };
655 vlib_thread_main_t *tm = vlib_get_thread_main ();
658 avf_adminq_init (vm, ad);
660 if ((error = avf_device_reset (vm, ad)))
663 avf_adminq_init (vm, ad);
668 if ((error = avf_op_version (vm, ad, &ver)))
671 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
672 ver.minor != VIRTCHNL_VERSION_MINOR)
673 return clib_error_return (0, "incompatible protocol version "
674 "(remote %d.%d)", ver.major, ver.minor);
679 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
682 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
683 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
685 ad->vsi_id = res.vsi_res[0].vsi_id;
686 ad->feature_bitmap = res.vf_offload_flags;
687 ad->num_queue_pairs = res.num_queue_pairs;
688 ad->max_vectors = res.max_vectors;
689 ad->max_mtu = res.max_mtu;
690 ad->rss_key_size = res.rss_key_size;
691 ad->rss_lut_size = res.rss_lut_size;
693 clib_memcpy (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
696 * Disable VLAN stripping
698 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
701 if ((error = avf_config_promisc_mode (vm, ad)))
704 if ((error = avf_cmd_rx_ctl_reg_write (vm, ad, 0xc400, 0)))
707 if ((error = avf_cmd_rx_ctl_reg_write (vm, ad, 0xc404, 0)))
713 if ((error = avf_rxq_init (vm, ad, 0)))
716 for (i = 0; i < tm->n_vlib_mains; i++)
717 if ((error = avf_txq_init (vm, ad, i)))
720 if ((error = avf_op_config_vsi_queues (vm, ad)))
723 if ((error = avf_op_config_irq_map (vm, ad)))
726 avf_irq_0_enable (ad);
727 avf_irq_n_enable (ad, 0);
729 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
732 if ((error = avf_op_enable_queues (vm, ad, 1, 0)))
735 if ((error = avf_op_enable_queues (vm, ad, 0, 1)))
738 ad->flags |= AVF_DEVICE_F_INITIALIZED;
743 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
745 avf_main_t *am = &avf_main;
746 vnet_main_t *vnm = vnet_get_main ();
747 virtchnl_pf_event_t *e;
750 if (ad->flags & AVF_DEVICE_F_ERROR)
753 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
756 ASSERT (ad->error == 0);
758 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
759 if ((r & 0xf0000000) != (1 << 31))
761 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
765 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
766 if ((r & 0xf0000000) != (1 << 31))
768 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
773 avf_op_get_stats (vm, ad, &ad->eth_stats);
776 vec_foreach (e, ad->events)
778 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
780 int link_up = e->event_data.link_event.link_status;
781 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
784 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
786 ad->flags |= AVF_DEVICE_F_LINK_UP;
787 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
788 VNET_HW_INTERFACE_FLAG_LINK_UP);
789 if (speed == VIRTCHNL_LINK_SPEED_40GB)
790 flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
791 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
792 flags |= VNET_HW_INTERFACE_FLAG_SPEED_25G;
793 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
794 flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
795 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
796 flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
797 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
798 flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
799 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
800 ad->link_speed = speed;
802 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
804 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
808 if (ad->flags & AVF_DEVICE_F_ELOG)
810 ELOG_TYPE_DECLARE (el) =
812 .format = "avf[%d] link change: link_status %d "
814 .format_args = "i4i1i1",
822 ed = ELOG_DATA (&vm->elog_main, el);
823 ed->dev_instance = ad->dev_instance;
824 ed->link_status = link_up;
825 ed->link_speed = speed;
830 if (ad->flags & AVF_DEVICE_F_ELOG)
832 ELOG_TYPE_DECLARE (el) =
834 .format = "avf[%d] unknown event: event %d severity %d",
835 .format_args = "i4i4i1i1",
843 ed = ELOG_DATA (&vm->elog_main, el);
844 ed->dev_instance = ad->dev_instance;
845 ed->event = e->event;
846 ed->severity = e->severity;
851 vec_reset_length (ad->events);
856 ad->flags |= AVF_DEVICE_F_ERROR;
857 ASSERT (ad->error != 0);
858 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
862 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
864 avf_main_t *am = &avf_main;
865 vlib_log_warn (am->log_class, "TODO");
870 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
872 avf_main_t *am = &avf_main;
874 uword *event_data = 0, event_type;
875 int enabled = 0, irq;
876 f64 last_run_duration = 0;
877 f64 last_periodic_time = 0;
882 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
884 vlib_process_wait_for_event (vm);
886 event_type = vlib_process_get_events (vm, &event_data);
887 vec_reset_length (event_data);
893 last_periodic_time = vlib_time_now (vm);
895 case AVF_PROCESS_EVENT_START:
898 case AVF_PROCESS_EVENT_STOP:
901 case AVF_PROCESS_EVENT_AQ_INT:
909 pool_foreach (ad, am->devices,
911 avf_process_one_device (vm, ad, irq);
914 last_run_duration = vlib_time_now (vm) - last_periodic_time;
920 VLIB_REGISTER_NODE (avf_process_node, static) = {
921 .function = avf_process,
922 .type = VLIB_NODE_TYPE_PROCESS,
923 .name = "avf-process",
928 avf_irq_0_handler (vlib_pci_dev_handle_t h, u16 line)
930 vlib_main_t *vm = vlib_get_main ();
931 avf_main_t *am = &avf_main;
932 uword pd = vlib_pci_get_private_data (h);
933 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
936 icr0 = avf_reg_read (ad, AVFINT_ICR0);
938 if (ad->flags & AVF_DEVICE_F_ELOG)
941 ELOG_TYPE_DECLARE (el) =
943 .format = "avf[%d] irq 0: icr0 0x%x",
944 .format_args = "i4i4",
953 ed = ELOG_DATA (&vm->elog_main, el);
954 ed->dev_instance = ad->dev_instance;
958 avf_irq_0_enable (ad);
960 /* bit 30 - Send/Receive Admin queue interrupt indication */
961 if (icr0 & (1 << 30))
962 vlib_process_signal_event (vm, avf_process_node.index,
963 AVF_PROCESS_EVENT_AQ_INT, 0);
967 avf_irq_n_handler (vlib_pci_dev_handle_t h, u16 line)
969 vlib_main_t *vm = vlib_get_main ();
970 avf_main_t *am = &avf_main;
971 uword pd = vlib_pci_get_private_data (h);
972 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
974 if (ad->flags & AVF_DEVICE_F_ELOG)
977 ELOG_TYPE_DECLARE (el) =
979 .format = "avf[%d] irq %d: received",
980 .format_args = "i4i2",
989 ed = ELOG_DATA (&vm->elog_main, el);
990 ed->dev_instance = ad->dev_instance;
994 avf_irq_n_enable (ad, 0);
998 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1000 vnet_main_t *vnm = vnet_get_main ();
1001 avf_main_t *am = &avf_main;
1004 if (ad->hw_if_index)
1006 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1007 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1008 ethernet_delete_interface (vnm, ad->hw_if_index);
1011 vlib_pci_device_close (ad->pci_dev_handle);
1013 vlib_physmem_free (vm, am->physmem_region, ad->atq);
1014 vlib_physmem_free (vm, am->physmem_region, ad->arq);
1015 vlib_physmem_free (vm, am->physmem_region, ad->atq_bufs);
1016 vlib_physmem_free (vm, am->physmem_region, ad->arq_bufs);
1019 vec_foreach_index (i, ad->rxqs)
1021 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1022 vlib_physmem_free (vm, am->physmem_region, rxq->descs);
1024 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1026 vec_free (rxq->bufs);
1029 vec_free (ad->rxqs);
1032 vec_foreach_index (i, ad->txqs)
1034 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1035 vlib_physmem_free (vm, am->physmem_region, txq->descs);
1038 u16 first = (txq->next - txq->n_bufs) & (txq->size -1);
1039 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1042 vec_free (txq->bufs);
1045 vec_free (ad->txqs);
1047 clib_error_free (ad->error);
1048 memset (ad, 0, sizeof (*ad));
1049 pool_put (am->devices, ad);
1053 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1055 vnet_main_t *vnm = vnet_get_main ();
1056 avf_main_t *am = &avf_main;
1058 vlib_pci_dev_handle_t h;
1059 clib_error_t *error = 0;
1061 pool_get (am->devices, ad);
1062 ad->dev_instance = ad - am->devices;
1063 ad->per_interface_next_index = ~0;
1065 if (args->enable_elog)
1066 ad->flags |= AVF_DEVICE_F_ELOG;
1068 if ((error = vlib_pci_device_open (&args->addr, avf_pci_device_ids, &h)))
1070 ad->pci_dev_handle = h;
1072 vlib_pci_set_private_data (h, ad->dev_instance);
1074 if ((error = vlib_pci_bus_master_enable (h)))
1077 if ((error = vlib_pci_map_region (h, 0, &ad->bar0)))
1080 if ((error = vlib_pci_register_msix_handler (h, 0, 1, &avf_irq_0_handler)))
1083 if ((error = vlib_pci_register_msix_handler (h, 1, 1, &avf_irq_n_handler)))
1086 if ((error = vlib_pci_enable_msix_irq (h, 0, 2)))
1089 if (am->physmem_region_alloc == 0)
1091 u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
1092 error = vlib_physmem_region_alloc (vm, "avf descriptors", 4 << 20, 0,
1093 flags, &am->physmem_region);
1096 am->physmem_region_alloc = 1;
1098 ad->atq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1099 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1104 ad->arq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1105 sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
1110 ad->atq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1111 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1116 ad->arq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
1117 AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
1122 if ((error = vlib_pci_intr_enable (h)))
1126 ad->flags |= AVF_DEVICE_F_IOVA;
1128 if ((error = avf_device_init (vm, ad)))
1131 /* create interface */
1132 error = ethernet_register_interface (vnm, avf_device_class.index,
1133 ad->dev_instance, ad->hwaddr,
1134 &ad->hw_if_index, avf_flag_change);
1139 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1140 ad->sw_if_index = sw->sw_if_index;
1142 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1143 avf_input_node.index);
1145 if (pool_elts (am->devices) == 1)
1146 vlib_process_signal_event (vm, avf_process_node.index,
1147 AVF_PROCESS_EVENT_START, 0);
1152 avf_delete_if (vm, ad);
1153 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1154 args->error = clib_error_return (error, "pci-addr %U",
1155 format_vlib_pci_addr, &args->addr);
1156 vlib_log_err (am->log_class, "%U", format_clib_error, args->error);
1159 static clib_error_t *
1160 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1162 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1163 avf_main_t *am = &avf_main;
1164 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1165 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1167 if (ad->flags & AVF_DEVICE_F_ERROR)
1168 return clib_error_return (0, "device is in error state");
1172 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1173 VNET_HW_INTERFACE_FLAG_LINK_UP);
1174 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1175 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, 0, ~0);
1179 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1180 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1186 VNET_DEVICE_CLASS (avf_device_class,) =
1188 .name = "Adaptive Virtual Function (AVF) interface",
1189 .tx_function = avf_interface_tx,
1190 .format_device = format_avf_device,
1191 .format_device_name = format_avf_device_name,
1192 .admin_up_down_function = avf_interface_admin_up_down,
1197 avf_init (vlib_main_t * vm)
1199 avf_main_t *am = &avf_main;
1200 clib_error_t *error;
1201 vlib_thread_main_t *tm = vlib_get_thread_main ();
1204 if ((error = vlib_call_init_function (vm, pci_bus_init)))
1207 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1208 CLIB_CACHE_LINE_BYTES);
1210 /* initialize ptype based loopup table */
1211 vec_validate_aligned (am->ptypes, 255, CLIB_CACHE_LINE_BYTES);
1214 vec_foreach_index (i, am->ptypes)
1216 avf_ptype_t *p = vec_elt_at_index (am->ptypes, i);
1217 if ((i >= 22) && (i <= 87))
1219 p->next_node = VNET_DEVICE_INPUT_NEXT_IP4_NCS_INPUT;
1220 p->flags = VNET_BUFFER_F_IS_IP4;
1222 else if ((i >= 88) && (i <= 153))
1224 p->next_node = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
1225 p->flags = VNET_BUFFER_F_IS_IP6;
1228 p->next_node = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
1229 p->buffer_advance = device_input_next_node_advance[p->next_node];
1230 p->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
1234 am->log_class = vlib_log_register_class ("avf_plugin", 0);
1235 vlib_log_debug (am->log_class, "initialized");
1240 VLIB_INIT_FUNCTION (avf_init);
1243 * fd.io coding-style-patch-verification: ON
1246 * eval: (c-set-style "gnu")