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 8160
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},
47 avf_irq_0_disable (avf_device_t * ad)
49 u32 dyn_ctl0 = 0, icr0_ena = 0;
51 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
53 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
54 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
59 avf_irq_0_enable (avf_device_t * ad)
61 u32 dyn_ctl0 = 0, icr0_ena = 0;
63 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
65 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
66 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
67 //dyn_ctl0 |= (3 << 3); /* [4:3] ITR Index, 11b = No ITR update */
68 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
70 avf_irq_0_disable (ad);
71 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
72 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
77 avf_irq_n_disable (avf_device_t * ad, u8 line)
81 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
86 avf_irq_n_enable (avf_device_t * ad, u8 line)
90 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
91 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
92 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
94 avf_irq_n_disable (ad, line);
95 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
101 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
104 avf_main_t *am = &avf_main;
105 clib_error_t *err = 0;
106 avf_aq_desc_t *d, dc;
109 d = &ad->atq[ad->atq_next_slot];
110 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
111 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
117 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
118 d->addr_hi = (u32) (pa >> 32);
119 d->addr_lo = (u32) pa;
120 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
122 d->flags |= AVF_AQ_F_BUF;
125 if (ad->flags & AVF_DEVICE_F_ELOG)
126 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
128 CLIB_MEMORY_BARRIER ();
129 vlib_log_debug (am->log_class, "%U", format_hexdump, data, len);
130 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
131 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
135 vlib_process_suspend (vm, 10e-6);
137 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
141 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
148 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
149 if (d->flags & AVF_AQ_F_ERR)
150 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
151 "%d]", d->opcode, d->retval);
154 if (ad->flags & AVF_DEVICE_F_ELOG)
157 ELOG_TYPE_DECLARE (el) =
159 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
160 "datalen %d retval %d",
161 .format_args = "i4i2i2i2i2i2",
172 ed = ELOG_DATA (&vm->elog_main, el);
173 ed->dev_instance = ad->dev_instance;
174 ed->s_flags = dc.flags;
175 ed->r_flags = d->flags;
176 ed->opcode = dc.opcode;
177 ed->datalen = dc.datalen;
178 ed->retval = d->retval;
186 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
190 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
191 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
193 if (ad->flags & AVF_DEVICE_F_ELOG)
196 ELOG_TYPE_DECLARE (el) =
198 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
199 .format_args = "i4i4i4",
207 ed = ELOG_DATA (&vm->elog_main, el);
208 ed->dev_instance = ad->dev_instance;
217 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
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_on_numa (vm, rxq->size *
228 sizeof (avf_rx_desc_t),
229 2 * CLIB_CACHE_LINE_BYTES,
232 rxq->buffer_pool_index =
233 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
236 return vlib_physmem_last_error (vm);
238 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
241 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
242 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
243 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
245 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
246 rxq->buffer_pool_index);
249 return clib_error_return (0, "buffer allocation error");
251 rxq->n_enqueued = n_alloc;
252 avf_rx_desc_t *d = rxq->descs;
253 for (i = 0; i < n_alloc; i++)
255 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
256 if (ad->flags & AVF_DEVICE_F_VA_DMA)
257 d->qword[0] = vlib_buffer_get_va (b);
259 d->qword[0] = vlib_buffer_get_pa (vm, b);
263 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
268 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
273 if (qid >= ad->num_queue_pairs)
275 qid = qid % ad->num_queue_pairs;
276 txq = vec_elt_at_index (ad->txqs, qid);
278 clib_spinlock_init (&txq->lock);
279 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
283 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
284 txq = vec_elt_at_index (ad->txqs, qid);
285 txq->size = txq_size;
287 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
288 sizeof (avf_tx_desc_t),
289 2 * CLIB_CACHE_LINE_BYTES,
292 return vlib_physmem_last_error (vm);
294 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
297 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
298 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
300 /* initialize ring of pending RS slots */
301 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
303 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
311 } virtchnl_promisc_info_t;
314 avf_arq_slot_init (avf_device_t * ad, u16 slot)
317 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
319 clib_memset (d, 0, sizeof (avf_aq_desc_t));
320 d->flags = AVF_AQ_F_BUF;
321 d->datalen = AVF_MBOX_BUF_SZ;
322 d->addr_hi = (u32) (pa >> 32);
323 d->addr_lo = (u32) pa;
327 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
329 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
330 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
334 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
339 /* VF MailBox Transmit */
340 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
341 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
343 pa = avf_dma_addr (vm, ad, ad->atq);
344 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
345 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
346 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
347 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
348 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
350 /* VF MailBox Receive */
351 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
352 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
354 for (i = 0; i < AVF_MBOX_LEN; i++)
355 avf_arq_slot_init (ad, i);
357 pa = avf_dma_addr (vm, ad, ad->arq);
359 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
360 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
361 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
362 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
363 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
364 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
366 ad->atq_next_slot = 0;
367 ad->arq_next_slot = 0;
371 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
372 void *in, int in_len, void *out, int out_len)
375 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
380 /* suppress interrupt in the next adminq receive slot
381 as we are going to wait for response
382 we only need interrupts when event is received */
383 d = &ad->arq[ad->arq_next_slot];
384 d->flags |= AVF_AQ_F_SI;
386 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
390 head = avf_get_u32 (ad->bar0, AVF_ARQH);
392 if (ad->arq_next_slot == head)
395 return clib_error_return (0, "timeout");
396 vlib_process_suspend (vm, 10e-3);
400 d = &ad->arq[ad->arq_next_slot];
402 if (d->v_opcode == VIRTCHNL_OP_EVENT)
404 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
405 virtchnl_pf_event_t *e;
407 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
408 ((d->flags & AVF_AQ_F_BUF) == 0))
409 return clib_error_return (0, "event message error");
411 vec_add2 (ad->events, e, 1);
412 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
413 avf_arq_slot_init (ad, ad->arq_next_slot);
419 if (d->v_opcode != op)
422 clib_error_return (0,
423 "unexpected message receiver [v_opcode = %u, "
424 "expected %u, v_retval %d]", d->v_opcode, op,
431 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
432 d->v_opcode, d->v_retval);
436 if (d->flags & AVF_AQ_F_BUF)
438 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
439 clib_memcpy_fast (out, buf, out_len);
442 avf_arq_slot_init (ad, ad->arq_next_slot);
443 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
445 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
449 if (ad->flags & AVF_DEVICE_F_ELOG)
452 ELOG_TYPE_DECLARE (el) =
454 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
455 .format_args = "i4t4i4i4",
456 .n_enum_strings = VIRTCHNL_N_OPS,
458 #define _(v, n) [v] = #n,
470 ed = ELOG_DATA (&vm->elog_main, el);
471 ed->dev_instance = ad->dev_instance;
473 ed->v_opcode_val = op;
474 ed->v_retval = d->v_retval;
481 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
482 virtchnl_version_info_t * ver)
484 clib_error_t *err = 0;
485 virtchnl_version_info_t myver = {
486 .major = VIRTCHNL_VERSION_MAJOR,
487 .minor = VIRTCHNL_VERSION_MINOR,
490 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
491 sizeof (virtchnl_version_info_t), ver,
492 sizeof (virtchnl_version_info_t));
501 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
502 virtchnl_vf_resource_t * res)
504 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
505 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
506 VIRTCHNL_VF_OFFLOAD_RX_POLLING);
508 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
509 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
513 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
515 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
518 virtchnl_rss_lut_t *rl;
520 clib_memset (msg, 0, msg_len);
521 rl = (virtchnl_rss_lut_t *) msg;
522 rl->vsi_id = ad->vsi_id;
523 rl->lut_entries = ad->rss_lut_size;
524 for (i = 0; i < ad->rss_lut_size; i++)
525 rl->lut[i] = i % ad->n_rx_queues;
527 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
532 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
534 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
537 virtchnl_rss_key_t *rk;
539 clib_memset (msg, 0, msg_len);
540 rk = (virtchnl_rss_key_t *) msg;
541 rk->vsi_id = ad->vsi_id;
542 rk->key_len = ad->rss_key_size;
543 u32 seed = random_default_seed ();
544 for (i = 0; i < ad->rss_key_size; i++)
545 rk->key[i] = (u8) random_u32 (&seed);
547 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
552 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
554 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
559 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
561 virtchnl_promisc_info_t pi = { 0 };
563 pi.vsi_id = ad->vsi_id;
564 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
565 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
566 sizeof (virtchnl_promisc_info_t), 0, 0);
571 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
574 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
575 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
576 sizeof (virtchnl_queue_pair_info_t);
578 virtchnl_vsi_queue_config_info_t *ci;
580 clib_memset (msg, 0, msg_len);
581 ci = (virtchnl_vsi_queue_config_info_t *) msg;
582 ci->vsi_id = ad->vsi_id;
583 ci->num_queue_pairs = n_qp;
585 for (i = 0; i < n_qp; i++)
587 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
588 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
590 rxq->vsi_id = ad->vsi_id;
592 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
593 if (i < vec_len (ad->rxqs))
595 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
596 rxq->ring_len = q->size;
597 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
598 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
599 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
602 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
603 txq->vsi_id = ad->vsi_id;
604 if (i < vec_len (ad->txqs))
607 txq->ring_len = q->size;
608 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
612 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
617 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
620 int msg_len = sizeof (virtchnl_irq_map_info_t) +
621 count * sizeof (virtchnl_vector_map_t);
623 virtchnl_irq_map_info_t *imi;
625 clib_memset (msg, 0, msg_len);
626 imi = (virtchnl_irq_map_info_t *) msg;
627 imi->num_vectors = count;
629 imi->vecmap[0].vector_id = 1;
630 imi->vecmap[0].vsi_id = ad->vsi_id;
631 imi->vecmap[0].rxq_map = 1;
632 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
637 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
640 sizeof (virtchnl_ether_addr_list_t) +
641 count * sizeof (virtchnl_ether_addr_t);
643 virtchnl_ether_addr_list_t *al;
646 clib_memset (msg, 0, msg_len);
647 al = (virtchnl_ether_addr_list_t *) msg;
648 al->vsi_id = ad->vsi_id;
649 al->num_elements = count;
650 for (i = 0; i < count; i++)
651 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
652 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
657 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
659 virtchnl_queue_select_t qs = { 0 };
661 qs.vsi_id = ad->vsi_id;
668 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
669 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
674 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
675 sizeof (virtchnl_queue_select_t), 0, 0);
679 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
680 virtchnl_eth_stats_t * es)
682 virtchnl_queue_select_t qs = { 0 };
683 qs.vsi_id = ad->vsi_id;
684 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
685 &qs, sizeof (virtchnl_queue_select_t),
686 es, sizeof (virtchnl_eth_stats_t));
690 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
692 avf_aq_desc_t d = { 0 };
698 d.v_opcode = VIRTCHNL_OP_RESET_VF;
699 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
703 vlib_process_suspend (vm, 10e-3);
704 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
706 if (rstat == 2 || rstat == 3)
710 return clib_error_return (0, "reset failed (timeout)");
716 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
718 virtchnl_vf_res_request_t res_req = { 0 };
723 res_req.num_queue_pairs = num_queue_pairs;
725 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
726 sizeof (virtchnl_vf_res_request_t), &res_req,
727 sizeof (virtchnl_vf_res_request_t));
730 * if PF responds, the request failed
731 * else PF initializes restart and avf_send_to_pf returns an error
735 return clib_error_return (0, "requested more than %u queue pairs",
736 res_req.num_queue_pairs);
740 vlib_process_suspend (vm, 10e-3);
741 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
743 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
747 return clib_error_return (0, "reset failed (timeout)");
756 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
757 avf_create_if_args_t * args)
759 virtchnl_version_info_t ver = { 0 };
760 virtchnl_vf_resource_t res = { 0 };
762 vlib_thread_main_t *tm = vlib_get_thread_main ();
765 avf_adminq_init (vm, ad);
767 /* request more queues only if we need them */
768 if ((error = avf_request_queues (vm, ad, tm->n_vlib_mains)))
770 /* we failed to get more queues, but still we want to proceed */
771 clib_error_free (error);
773 if ((error = avf_device_reset (vm, ad)))
777 avf_adminq_init (vm, ad);
782 if ((error = avf_op_version (vm, ad, &ver)))
785 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
786 ver.minor != VIRTCHNL_VERSION_MINOR)
787 return clib_error_return (0, "incompatible protocol version "
788 "(remote %d.%d)", ver.major, ver.minor);
791 * OP_GET_VF_RESOURCES
793 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
796 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
797 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
799 ad->vsi_id = res.vsi_res[0].vsi_id;
800 ad->feature_bitmap = res.vf_offload_flags;
801 ad->num_queue_pairs = res.num_queue_pairs;
802 ad->max_vectors = res.max_vectors;
803 ad->max_mtu = res.max_mtu;
804 ad->rss_key_size = res.rss_key_size;
805 ad->rss_lut_size = res.rss_lut_size;
807 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
810 * Disable VLAN stripping
812 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
815 if ((error = avf_config_promisc_mode (vm, ad)))
821 if (args->rxq_num == 0)
825 else if (args->rxq_num > ad->num_queue_pairs)
827 args->rxq_num = ad->num_queue_pairs;
828 vlib_log_warn (am->log_class, "Requested more rx queues than"
829 "queue pairs available. Using %u rx queues.",
833 for (i = 0; i < args->rxq_num; i++)
834 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
837 for (i = 0; i < tm->n_vlib_mains; i++)
838 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
841 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
842 (error = avf_op_config_rss_lut (vm, ad)))
845 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
846 (error = avf_op_config_rss_key (vm, ad)))
849 if ((error = avf_op_config_vsi_queues (vm, ad)))
852 if ((error = avf_op_config_irq_map (vm, ad)))
855 avf_irq_0_enable (ad);
856 for (i = 0; i < ad->n_rx_queues; i++)
857 avf_irq_n_enable (ad, i);
859 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
862 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
863 pow2_mask (ad->n_tx_queues))))
866 ad->flags |= AVF_DEVICE_F_INITIALIZED;
871 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
873 avf_main_t *am = &avf_main;
874 vnet_main_t *vnm = vnet_get_main ();
875 virtchnl_pf_event_t *e;
878 if (ad->flags & AVF_DEVICE_F_ERROR)
881 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
884 ASSERT (ad->error == 0);
886 /* do not process device in reset state */
887 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
888 if (r != VIRTCHNL_VFR_VFACTIVE)
891 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
892 if ((r & 0xf0000000) != (1ULL << 31))
894 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
898 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
899 if ((r & 0xf0000000) != (1ULL << 31))
901 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
906 avf_op_get_stats (vm, ad, &ad->eth_stats);
909 vec_foreach (e, ad->events)
911 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
913 int link_up = e->event_data.link_event.link_status;
914 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
918 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
920 ad->flags |= AVF_DEVICE_F_LINK_UP;
921 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
922 VNET_HW_INTERFACE_FLAG_LINK_UP);
923 if (speed == VIRTCHNL_LINK_SPEED_40GB)
925 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
927 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
929 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
931 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
933 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
934 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index, kbps);
935 ad->link_speed = speed;
937 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
939 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
943 if (ad->flags & AVF_DEVICE_F_ELOG)
945 ELOG_TYPE_DECLARE (el) =
947 .format = "avf[%d] link change: link_status %d "
949 .format_args = "i4i1i1",
957 ed = ELOG_DATA (&vm->elog_main, el);
958 ed->dev_instance = ad->dev_instance;
959 ed->link_status = link_up;
960 ed->link_speed = speed;
965 if (ad->flags & AVF_DEVICE_F_ELOG)
967 ELOG_TYPE_DECLARE (el) =
969 .format = "avf[%d] unknown event: event %d severity %d",
970 .format_args = "i4i4i1i1",
978 ed = ELOG_DATA (&vm->elog_main, el);
979 ed->dev_instance = ad->dev_instance;
980 ed->event = e->event;
981 ed->severity = e->severity;
986 vec_reset_length (ad->events);
991 ad->flags |= AVF_DEVICE_F_ERROR;
992 ASSERT (ad->error != 0);
993 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
997 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
999 avf_main_t *am = &avf_main;
1000 vlib_log_warn (am->log_class, "TODO");
1005 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1007 avf_main_t *am = &avf_main;
1009 uword *event_data = 0, event_type;
1010 int enabled = 0, irq;
1011 f64 last_run_duration = 0;
1012 f64 last_periodic_time = 0;
1017 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1019 vlib_process_wait_for_event (vm);
1021 event_type = vlib_process_get_events (vm, &event_data);
1022 vec_reset_length (event_data);
1028 last_periodic_time = vlib_time_now (vm);
1030 case AVF_PROCESS_EVENT_START:
1033 case AVF_PROCESS_EVENT_STOP:
1036 case AVF_PROCESS_EVENT_AQ_INT:
1044 pool_foreach (ad, am->devices,
1046 avf_process_one_device (vm, ad, irq);
1049 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1055 VLIB_REGISTER_NODE (avf_process_node, static) = {
1056 .function = avf_process,
1057 .type = VLIB_NODE_TYPE_PROCESS,
1058 .name = "avf-process",
1063 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1065 avf_main_t *am = &avf_main;
1066 uword pd = vlib_pci_get_private_data (vm, h);
1067 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1070 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1072 if (ad->flags & AVF_DEVICE_F_ELOG)
1075 ELOG_TYPE_DECLARE (el) =
1077 .format = "avf[%d] irq 0: icr0 0x%x",
1078 .format_args = "i4i4",
1087 ed = ELOG_DATA (&vm->elog_main, el);
1088 ed->dev_instance = ad->dev_instance;
1092 avf_irq_0_enable (ad);
1094 /* bit 30 - Send/Receive Admin queue interrupt indication */
1095 if (icr0 & (1 << 30))
1096 vlib_process_signal_event (vm, avf_process_node.index,
1097 AVF_PROCESS_EVENT_AQ_INT, 0);
1101 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1103 vnet_main_t *vnm = vnet_get_main ();
1104 avf_main_t *am = &avf_main;
1105 uword pd = vlib_pci_get_private_data (vm, h);
1106 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1110 if (ad->flags & AVF_DEVICE_F_ELOG)
1113 ELOG_TYPE_DECLARE (el) =
1115 .format = "avf[%d] irq %d: received",
1116 .format_args = "i4i2",
1125 ed = ELOG_DATA (&vm->elog_main, el);
1126 ed->dev_instance = ad->dev_instance;
1131 if (vec_len (ad->rxqs) > qid && ad->rxqs[qid].int_mode != 0)
1132 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, qid);
1133 for (i = 0; i < vec_len (ad->rxqs); i++)
1134 avf_irq_n_enable (ad, i);
1138 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1140 vnet_main_t *vnm = vnet_get_main ();
1141 avf_main_t *am = &avf_main;
1144 if (ad->hw_if_index)
1146 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1147 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1148 ethernet_delete_interface (vnm, ad->hw_if_index);
1151 vlib_pci_device_close (vm, ad->pci_dev_handle);
1153 vlib_physmem_free (vm, ad->atq);
1154 vlib_physmem_free (vm, ad->arq);
1155 vlib_physmem_free (vm, ad->atq_bufs);
1156 vlib_physmem_free (vm, ad->arq_bufs);
1159 vec_foreach_index (i, ad->rxqs)
1161 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1162 vlib_physmem_free (vm, (void *) rxq->descs);
1163 if (rxq->n_enqueued)
1164 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1166 vec_free (rxq->bufs);
1169 vec_free (ad->rxqs);
1172 vec_foreach_index (i, ad->txqs)
1174 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1175 vlib_physmem_free (vm, (void *) txq->descs);
1176 if (txq->n_enqueued)
1178 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1179 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1182 vec_free (txq->bufs);
1183 clib_ring_free (txq->rs_slots);
1186 vec_free (ad->txqs);
1187 vec_free (ad->name);
1189 clib_error_free (ad->error);
1190 clib_memset (ad, 0, sizeof (*ad));
1191 pool_put (am->devices, ad);
1195 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1197 vnet_main_t *vnm = vnet_get_main ();
1198 avf_main_t *am = &avf_main;
1200 vlib_pci_dev_handle_t h;
1201 clib_error_t *error = 0;
1204 /* check input args */
1205 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1206 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1208 if ((args->rxq_size & (args->rxq_size - 1))
1209 || (args->txq_size & (args->txq_size - 1)))
1211 args->rv = VNET_API_ERROR_INVALID_VALUE;
1213 clib_error_return (error, "queue size must be a power of two");
1217 pool_get (am->devices, ad);
1218 ad->dev_instance = ad - am->devices;
1219 ad->per_interface_next_index = ~0;
1220 ad->name = vec_dup (args->name);
1222 if (args->enable_elog)
1223 ad->flags |= AVF_DEVICE_F_ELOG;
1225 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1228 pool_put (am->devices, ad);
1229 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1231 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1235 ad->pci_dev_handle = h;
1236 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1238 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1240 if ((error = vlib_pci_bus_master_enable (vm, h)))
1243 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1246 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1247 &avf_irq_0_handler)))
1250 if ((error = vlib_pci_register_msix_handler (vm, h, 1, 1,
1251 &avf_irq_n_handler)))
1254 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
1257 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1259 CLIB_CACHE_LINE_BYTES,
1263 error = vlib_physmem_last_error (vm);
1267 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1270 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1272 CLIB_CACHE_LINE_BYTES,
1276 error = vlib_physmem_last_error (vm);
1280 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1283 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1285 CLIB_CACHE_LINE_BYTES,
1287 if (ad->atq_bufs == 0)
1289 error = vlib_physmem_last_error (vm);
1293 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1296 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1298 CLIB_CACHE_LINE_BYTES,
1300 if (ad->arq_bufs == 0)
1302 error = vlib_physmem_last_error (vm);
1306 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1309 if ((error = vlib_pci_intr_enable (vm, h)))
1312 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1313 ad->flags |= AVF_DEVICE_F_VA_DMA;
1315 if ((error = avf_device_init (vm, am, ad, args)))
1318 /* create interface */
1319 error = ethernet_register_interface (vnm, avf_device_class.index,
1320 ad->dev_instance, ad->hwaddr,
1321 &ad->hw_if_index, avf_flag_change);
1326 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1327 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1329 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1330 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1331 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1332 avf_input_node.index);
1334 for (i = 0; i < ad->n_rx_queues; i++)
1335 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1337 if (pool_elts (am->devices) == 1)
1338 vlib_process_signal_event (vm, avf_process_node.index,
1339 AVF_PROCESS_EVENT_START, 0);
1344 avf_delete_if (vm, ad);
1345 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1346 args->error = clib_error_return (error, "pci-addr %U",
1347 format_vlib_pci_addr, &args->addr);
1348 vlib_log_err (am->log_class, "%U", format_clib_error, args->error);
1351 static clib_error_t *
1352 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1354 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1355 avf_main_t *am = &avf_main;
1356 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1357 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1359 if (ad->flags & AVF_DEVICE_F_ERROR)
1360 return clib_error_return (0, "device is in error state");
1364 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1365 VNET_HW_INTERFACE_FLAG_LINK_UP);
1366 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1370 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1371 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1376 static clib_error_t *
1377 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1378 vnet_hw_interface_rx_mode mode)
1380 avf_main_t *am = &avf_main;
1381 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1382 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1383 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1385 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1394 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1397 avf_main_t *am = &avf_main;
1398 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1399 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1401 /* Shut off redirection */
1402 if (node_index == ~0)
1404 ad->per_interface_next_index = node_index;
1408 ad->per_interface_next_index =
1409 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1412 static char *avf_tx_func_error_strings[] = {
1414 foreach_avf_tx_func_error
1419 VNET_DEVICE_CLASS (avf_device_class,) =
1421 .name = "Adaptive Virtual Function (AVF) interface",
1422 .format_device = format_avf_device,
1423 .format_device_name = format_avf_device_name,
1424 .admin_up_down_function = avf_interface_admin_up_down,
1425 .rx_mode_change_function = avf_interface_rx_mode_change,
1426 .rx_redirect_to_node = avf_set_interface_next_node,
1427 .tx_function_n_errors = AVF_TX_N_ERROR,
1428 .tx_function_error_strings = avf_tx_func_error_strings,
1433 avf_init (vlib_main_t * vm)
1435 avf_main_t *am = &avf_main;
1436 vlib_thread_main_t *tm = vlib_get_thread_main ();
1438 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1439 CLIB_CACHE_LINE_BYTES);
1441 am->log_class = vlib_log_register_class ("avf_plugin", 0);
1442 vlib_log_debug (am->log_class, "initialized");
1448 VLIB_INIT_FUNCTION (avf_init) =
1450 .runs_after = VLIB_INITS ("pci_bus_init"),
1455 * fd.io coding-style-patch-verification: ON
1458 * eval: (c-set-style "gnu")