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,
233 return vlib_physmem_last_error (vm);
235 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
238 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
239 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
240 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
242 n_alloc = vlib_buffer_alloc (vm, rxq->bufs, rxq->size - 8);
245 return clib_error_return (0, "buffer allocation error");
247 rxq->n_enqueued = n_alloc;
248 avf_rx_desc_t *d = rxq->descs;
249 for (i = 0; i < n_alloc; i++)
251 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
252 if (ad->flags & AVF_DEVICE_F_VA_DMA)
253 d->qword[0] = vlib_buffer_get_va (b);
255 d->qword[0] = vlib_buffer_get_pa (vm, b);
259 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
264 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
269 if (qid >= ad->num_queue_pairs)
271 qid = qid % ad->num_queue_pairs;
272 txq = vec_elt_at_index (ad->txqs, qid);
274 clib_spinlock_init (&txq->lock);
275 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
279 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
280 txq = vec_elt_at_index (ad->txqs, qid);
281 txq->size = txq_size;
283 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
284 sizeof (avf_tx_desc_t),
285 2 * CLIB_CACHE_LINE_BYTES,
288 return vlib_physmem_last_error (vm);
290 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
293 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
294 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
296 /* initialize ring of pending RS slots */
297 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
299 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
307 } virtchnl_promisc_info_t;
310 avf_arq_slot_init (avf_device_t * ad, u16 slot)
313 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
315 clib_memset (d, 0, sizeof (avf_aq_desc_t));
316 d->flags = AVF_AQ_F_BUF;
317 d->datalen = AVF_MBOX_BUF_SZ;
318 d->addr_hi = (u32) (pa >> 32);
319 d->addr_lo = (u32) pa;
323 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
325 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
326 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
330 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
335 /* VF MailBox Transmit */
336 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
337 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
339 pa = avf_dma_addr (vm, ad, ad->atq);
340 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
341 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
342 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
343 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
344 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
346 /* VF MailBox Receive */
347 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
348 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
350 for (i = 0; i < AVF_MBOX_LEN; i++)
351 avf_arq_slot_init (ad, i);
353 pa = avf_dma_addr (vm, ad, ad->arq);
355 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
356 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
357 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
358 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
359 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
360 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
362 ad->atq_next_slot = 0;
363 ad->arq_next_slot = 0;
367 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
368 void *in, int in_len, void *out, int out_len)
371 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
376 /* supppres interrupt in the next adminq receive slot
377 as we are going to wait for response
378 we only need interrupts when event is received */
379 d = &ad->arq[ad->arq_next_slot];
380 d->flags |= AVF_AQ_F_SI;
382 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
386 head = avf_get_u32 (ad->bar0, AVF_ARQH);
388 if (ad->arq_next_slot == head)
391 return clib_error_return (0, "timeout");
392 vlib_process_suspend (vm, 10e-3);
396 d = &ad->arq[ad->arq_next_slot];
398 if (d->v_opcode == VIRTCHNL_OP_EVENT)
400 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
401 virtchnl_pf_event_t *e;
403 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
404 ((d->flags & AVF_AQ_F_BUF) == 0))
405 return clib_error_return (0, "event message error");
407 vec_add2 (ad->events, e, 1);
408 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
409 avf_arq_slot_init (ad, ad->arq_next_slot);
415 if (d->v_opcode != op)
418 clib_error_return (0,
419 "unexpected message receiver [v_opcode = %u, "
420 "expected %u, v_retval %d]", d->v_opcode, op,
427 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
428 d->v_opcode, d->v_retval);
432 if (d->flags & AVF_AQ_F_BUF)
434 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
435 clib_memcpy_fast (out, buf, out_len);
438 avf_arq_slot_init (ad, ad->arq_next_slot);
439 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
441 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
445 if (ad->flags & AVF_DEVICE_F_ELOG)
448 ELOG_TYPE_DECLARE (el) =
450 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
451 .format_args = "i4t4i4i4",
452 .n_enum_strings = VIRTCHNL_N_OPS,
454 #define _(v, n) [v] = #n,
466 ed = ELOG_DATA (&vm->elog_main, el);
467 ed->dev_instance = ad->dev_instance;
469 ed->v_opcode_val = op;
470 ed->v_retval = d->v_retval;
477 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
478 virtchnl_version_info_t * ver)
480 clib_error_t *err = 0;
481 virtchnl_version_info_t myver = {
482 .major = VIRTCHNL_VERSION_MAJOR,
483 .minor = VIRTCHNL_VERSION_MINOR,
486 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
487 sizeof (virtchnl_version_info_t), ver,
488 sizeof (virtchnl_version_info_t));
497 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
498 virtchnl_vf_resource_t * res)
500 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
501 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
502 VIRTCHNL_VF_OFFLOAD_RX_POLLING);
504 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
505 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
509 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
511 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
514 virtchnl_rss_lut_t *rl;
516 clib_memset (msg, 0, msg_len);
517 rl = (virtchnl_rss_lut_t *) msg;
518 rl->vsi_id = ad->vsi_id;
519 rl->lut_entries = ad->rss_lut_size;
520 for (i = 0; i < ad->rss_lut_size; i++)
521 rl->lut[i] = i % ad->n_rx_queues;
523 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
528 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
530 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
533 virtchnl_rss_key_t *rk;
535 clib_memset (msg, 0, msg_len);
536 rk = (virtchnl_rss_key_t *) msg;
537 rk->vsi_id = ad->vsi_id;
538 rk->key_len = ad->rss_key_size;
539 u32 seed = random_default_seed ();
540 for (i = 0; i < ad->rss_key_size; i++)
541 rk->key[i] = (u8) random_u32 (&seed);
543 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
548 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
550 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
555 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad)
557 virtchnl_promisc_info_t pi = { 0 };
559 pi.vsi_id = ad->vsi_id;
561 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
562 sizeof (virtchnl_promisc_info_t), 0, 0);
567 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
570 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
571 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
572 sizeof (virtchnl_queue_pair_info_t);
574 virtchnl_vsi_queue_config_info_t *ci;
576 clib_memset (msg, 0, msg_len);
577 ci = (virtchnl_vsi_queue_config_info_t *) msg;
578 ci->vsi_id = ad->vsi_id;
579 ci->num_queue_pairs = n_qp;
581 for (i = 0; i < n_qp; i++)
583 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
584 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
586 rxq->vsi_id = ad->vsi_id;
588 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
589 if (i < vec_len (ad->rxqs))
591 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
592 rxq->ring_len = q->size;
593 rxq->databuffer_size = VLIB_BUFFER_DATA_SIZE;
594 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
595 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
598 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
599 txq->vsi_id = ad->vsi_id;
600 if (i < vec_len (ad->txqs))
603 txq->ring_len = q->size;
604 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
608 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
613 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
616 int msg_len = sizeof (virtchnl_irq_map_info_t) +
617 count * sizeof (virtchnl_vector_map_t);
619 virtchnl_irq_map_info_t *imi;
621 clib_memset (msg, 0, msg_len);
622 imi = (virtchnl_irq_map_info_t *) msg;
623 imi->num_vectors = count;
625 imi->vecmap[0].vector_id = 1;
626 imi->vecmap[0].vsi_id = ad->vsi_id;
627 imi->vecmap[0].rxq_map = 1;
628 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
633 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
636 sizeof (virtchnl_ether_addr_list_t) +
637 count * sizeof (virtchnl_ether_addr_t);
639 virtchnl_ether_addr_list_t *al;
642 clib_memset (msg, 0, msg_len);
643 al = (virtchnl_ether_addr_list_t *) msg;
644 al->vsi_id = ad->vsi_id;
645 al->num_elements = count;
646 for (i = 0; i < count; i++)
647 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
648 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
653 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
655 virtchnl_queue_select_t qs = { 0 };
657 qs.vsi_id = ad->vsi_id;
664 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
665 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
670 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
671 sizeof (virtchnl_queue_select_t), 0, 0);
675 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
676 virtchnl_eth_stats_t * es)
678 virtchnl_queue_select_t qs = { 0 };
679 qs.vsi_id = ad->vsi_id;
680 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
681 &qs, sizeof (virtchnl_queue_select_t),
682 es, sizeof (virtchnl_eth_stats_t));
686 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
688 avf_aq_desc_t d = { 0 };
694 d.v_opcode = VIRTCHNL_OP_RESET_VF;
695 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
699 vlib_process_suspend (vm, 10e-3);
700 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
702 if (rstat == 2 || rstat == 3)
706 return clib_error_return (0, "reset failed (timeout)");
712 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
714 virtchnl_vf_res_request_t res_req = { 0 };
719 res_req.num_queue_pairs = num_queue_pairs;
721 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
722 sizeof (virtchnl_vf_res_request_t), &res_req,
723 sizeof (virtchnl_vf_res_request_t));
726 * if PF respondes, the request failed
727 * else PF initializes restart and avf_send_to_pf returns an error
731 return clib_error_return (0, "requested more than %u queue pairs",
732 res_req.num_queue_pairs);
736 vlib_process_suspend (vm, 10e-3);
737 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
739 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
743 return clib_error_return (0, "reset failed (timeout)");
752 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
753 avf_create_if_args_t * args)
755 virtchnl_version_info_t ver = { 0 };
756 virtchnl_vf_resource_t res = { 0 };
758 vlib_thread_main_t *tm = vlib_get_thread_main ();
761 avf_adminq_init (vm, ad);
763 /* request more queues only if we need them */
764 if ((error = avf_request_queues (vm, ad, tm->n_vlib_mains)))
766 /* we failed to get more queues, but still we want to proceed */
767 clib_error_free (error);
769 if ((error = avf_device_reset (vm, ad)))
773 avf_adminq_init (vm, ad);
778 if ((error = avf_op_version (vm, ad, &ver)))
781 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
782 ver.minor != VIRTCHNL_VERSION_MINOR)
783 return clib_error_return (0, "incompatible protocol version "
784 "(remote %d.%d)", ver.major, ver.minor);
789 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
792 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
793 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
795 ad->vsi_id = res.vsi_res[0].vsi_id;
796 ad->feature_bitmap = res.vf_offload_flags;
797 ad->num_queue_pairs = res.num_queue_pairs;
798 ad->max_vectors = res.max_vectors;
799 ad->max_mtu = res.max_mtu;
800 ad->rss_key_size = res.rss_key_size;
801 ad->rss_lut_size = res.rss_lut_size;
803 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
806 * Disable VLAN stripping
808 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
811 if ((error = avf_config_promisc_mode (vm, ad)))
817 if (args->rxq_num == 0)
821 else if (args->rxq_num > ad->num_queue_pairs)
823 args->rxq_num = ad->num_queue_pairs;
824 vlib_log_warn (am->log_class, "Requested more rx queues than"
825 "queue pairs available. Using %u rx queues.",
829 for (i = 0; i < args->rxq_num; i++)
830 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
833 for (i = 0; i < tm->n_vlib_mains; i++)
834 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
837 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
838 (error = avf_op_config_rss_lut (vm, ad)))
841 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
842 (error = avf_op_config_rss_key (vm, ad)))
845 if ((error = avf_op_config_vsi_queues (vm, ad)))
848 if ((error = avf_op_config_irq_map (vm, ad)))
851 avf_irq_0_enable (ad);
852 for (i = 0; i < ad->n_rx_queues; i++)
853 avf_irq_n_enable (ad, i);
855 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
858 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
859 pow2_mask (ad->n_tx_queues))))
862 ad->flags |= AVF_DEVICE_F_INITIALIZED;
867 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
869 avf_main_t *am = &avf_main;
870 vnet_main_t *vnm = vnet_get_main ();
871 virtchnl_pf_event_t *e;
874 if (ad->flags & AVF_DEVICE_F_ERROR)
877 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
880 ASSERT (ad->error == 0);
882 /* do not process device in reset state */
883 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
884 if (r != VIRTCHNL_VFR_VFACTIVE)
887 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
888 if ((r & 0xf0000000) != (1ULL << 31))
890 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
894 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
895 if ((r & 0xf0000000) != (1ULL << 31))
897 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
902 avf_op_get_stats (vm, ad, &ad->eth_stats);
905 vec_foreach (e, ad->events)
907 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
909 int link_up = e->event_data.link_event.link_status;
910 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
914 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
916 ad->flags |= AVF_DEVICE_F_LINK_UP;
917 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
918 VNET_HW_INTERFACE_FLAG_LINK_UP);
919 if (speed == VIRTCHNL_LINK_SPEED_40GB)
921 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
923 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
925 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
927 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
929 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
930 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index, kbps);
931 ad->link_speed = speed;
933 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
935 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
939 if (ad->flags & AVF_DEVICE_F_ELOG)
941 ELOG_TYPE_DECLARE (el) =
943 .format = "avf[%d] link change: link_status %d "
945 .format_args = "i4i1i1",
953 ed = ELOG_DATA (&vm->elog_main, el);
954 ed->dev_instance = ad->dev_instance;
955 ed->link_status = link_up;
956 ed->link_speed = speed;
961 if (ad->flags & AVF_DEVICE_F_ELOG)
963 ELOG_TYPE_DECLARE (el) =
965 .format = "avf[%d] unknown event: event %d severity %d",
966 .format_args = "i4i4i1i1",
974 ed = ELOG_DATA (&vm->elog_main, el);
975 ed->dev_instance = ad->dev_instance;
976 ed->event = e->event;
977 ed->severity = e->severity;
982 vec_reset_length (ad->events);
987 ad->flags |= AVF_DEVICE_F_ERROR;
988 ASSERT (ad->error != 0);
989 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
993 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
995 avf_main_t *am = &avf_main;
996 vlib_log_warn (am->log_class, "TODO");
1001 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1003 avf_main_t *am = &avf_main;
1005 uword *event_data = 0, event_type;
1006 int enabled = 0, irq;
1007 f64 last_run_duration = 0;
1008 f64 last_periodic_time = 0;
1013 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1015 vlib_process_wait_for_event (vm);
1017 event_type = vlib_process_get_events (vm, &event_data);
1018 vec_reset_length (event_data);
1024 last_periodic_time = vlib_time_now (vm);
1026 case AVF_PROCESS_EVENT_START:
1029 case AVF_PROCESS_EVENT_STOP:
1032 case AVF_PROCESS_EVENT_AQ_INT:
1040 pool_foreach (ad, am->devices,
1042 avf_process_one_device (vm, ad, irq);
1045 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1051 VLIB_REGISTER_NODE (avf_process_node, static) = {
1052 .function = avf_process,
1053 .type = VLIB_NODE_TYPE_PROCESS,
1054 .name = "avf-process",
1059 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1061 avf_main_t *am = &avf_main;
1062 uword pd = vlib_pci_get_private_data (vm, h);
1063 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1066 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1068 if (ad->flags & AVF_DEVICE_F_ELOG)
1071 ELOG_TYPE_DECLARE (el) =
1073 .format = "avf[%d] irq 0: icr0 0x%x",
1074 .format_args = "i4i4",
1083 ed = ELOG_DATA (&vm->elog_main, el);
1084 ed->dev_instance = ad->dev_instance;
1088 avf_irq_0_enable (ad);
1090 /* bit 30 - Send/Receive Admin queue interrupt indication */
1091 if (icr0 & (1 << 30))
1092 vlib_process_signal_event (vm, avf_process_node.index,
1093 AVF_PROCESS_EVENT_AQ_INT, 0);
1097 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1099 vnet_main_t *vnm = vnet_get_main ();
1100 avf_main_t *am = &avf_main;
1101 uword pd = vlib_pci_get_private_data (vm, h);
1102 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1106 if (ad->flags & AVF_DEVICE_F_ELOG)
1109 ELOG_TYPE_DECLARE (el) =
1111 .format = "avf[%d] irq %d: received",
1112 .format_args = "i4i2",
1121 ed = ELOG_DATA (&vm->elog_main, el);
1122 ed->dev_instance = ad->dev_instance;
1127 if (vec_len (ad->rxqs) > qid && ad->rxqs[qid].int_mode != 0)
1128 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, qid);
1129 for (i = 0; i < vec_len (ad->rxqs); i++)
1130 avf_irq_n_enable (ad, i);
1134 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1136 vnet_main_t *vnm = vnet_get_main ();
1137 avf_main_t *am = &avf_main;
1140 if (ad->hw_if_index)
1142 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1143 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1144 ethernet_delete_interface (vnm, ad->hw_if_index);
1147 vlib_pci_device_close (vm, ad->pci_dev_handle);
1149 vlib_physmem_free (vm, ad->atq);
1150 vlib_physmem_free (vm, ad->arq);
1151 vlib_physmem_free (vm, ad->atq_bufs);
1152 vlib_physmem_free (vm, ad->arq_bufs);
1155 vec_foreach_index (i, ad->rxqs)
1157 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1158 vlib_physmem_free (vm, (void *) rxq->descs);
1159 if (rxq->n_enqueued)
1160 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1162 vec_free (rxq->bufs);
1165 vec_free (ad->rxqs);
1168 vec_foreach_index (i, ad->txqs)
1170 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1171 vlib_physmem_free (vm, (void *) txq->descs);
1172 if (txq->n_enqueued)
1174 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1175 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1178 vec_free (txq->bufs);
1179 clib_ring_free (txq->rs_slots);
1182 vec_free (ad->txqs);
1183 vec_free (ad->name);
1185 clib_error_free (ad->error);
1186 clib_memset (ad, 0, sizeof (*ad));
1187 pool_put (am->devices, ad);
1191 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1193 vnet_main_t *vnm = vnet_get_main ();
1194 avf_main_t *am = &avf_main;
1196 vlib_pci_dev_handle_t h;
1197 clib_error_t *error = 0;
1200 /* check input args */
1201 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1202 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1204 if ((args->rxq_size & (args->rxq_size - 1))
1205 || (args->txq_size & (args->txq_size - 1)))
1207 args->rv = VNET_API_ERROR_INVALID_VALUE;
1209 clib_error_return (error, "queue size must be a power of two");
1213 pool_get (am->devices, ad);
1214 ad->dev_instance = ad - am->devices;
1215 ad->per_interface_next_index = ~0;
1216 ad->name = vec_dup (args->name);
1218 if (args->enable_elog)
1219 ad->flags |= AVF_DEVICE_F_ELOG;
1221 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1224 pool_put (am->devices, ad);
1225 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1227 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1231 ad->pci_dev_handle = h;
1232 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1234 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1236 if ((error = vlib_pci_bus_master_enable (vm, h)))
1239 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1242 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1243 &avf_irq_0_handler)))
1246 if ((error = vlib_pci_register_msix_handler (vm, h, 1, 1,
1247 &avf_irq_n_handler)))
1250 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
1253 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1255 CLIB_CACHE_LINE_BYTES,
1259 error = vlib_physmem_last_error (vm);
1263 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1266 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1268 CLIB_CACHE_LINE_BYTES,
1272 error = vlib_physmem_last_error (vm);
1276 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1279 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1281 CLIB_CACHE_LINE_BYTES,
1283 if (ad->atq_bufs == 0)
1285 error = vlib_physmem_last_error (vm);
1289 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1292 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1294 CLIB_CACHE_LINE_BYTES,
1296 if (ad->arq_bufs == 0)
1298 error = vlib_physmem_last_error (vm);
1302 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1305 if ((error = vlib_pci_intr_enable (vm, h)))
1308 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1309 ad->flags |= AVF_DEVICE_F_VA_DMA;
1311 if ((error = avf_device_init (vm, am, ad, args)))
1314 /* create interface */
1315 error = ethernet_register_interface (vnm, avf_device_class.index,
1316 ad->dev_instance, ad->hwaddr,
1317 &ad->hw_if_index, avf_flag_change);
1322 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1323 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1325 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1326 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1327 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1328 avf_input_node.index);
1330 for (i = 0; i < ad->n_rx_queues; i++)
1331 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1333 if (pool_elts (am->devices) == 1)
1334 vlib_process_signal_event (vm, avf_process_node.index,
1335 AVF_PROCESS_EVENT_START, 0);
1340 avf_delete_if (vm, ad);
1341 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1342 args->error = clib_error_return (error, "pci-addr %U",
1343 format_vlib_pci_addr, &args->addr);
1344 vlib_log_err (am->log_class, "%U", format_clib_error, args->error);
1347 static clib_error_t *
1348 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1350 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1351 avf_main_t *am = &avf_main;
1352 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1353 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1355 if (ad->flags & AVF_DEVICE_F_ERROR)
1356 return clib_error_return (0, "device is in error state");
1360 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1361 VNET_HW_INTERFACE_FLAG_LINK_UP);
1362 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1366 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1367 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1372 static clib_error_t *
1373 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1374 vnet_hw_interface_rx_mode mode)
1376 avf_main_t *am = &avf_main;
1377 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1378 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1379 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1381 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1390 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1393 avf_main_t *am = &avf_main;
1394 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1395 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1397 /* Shut off redirection */
1398 if (node_index == ~0)
1400 ad->per_interface_next_index = node_index;
1404 ad->per_interface_next_index =
1405 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1408 static char *avf_tx_func_error_strings[] = {
1410 foreach_avf_tx_func_error
1415 VNET_DEVICE_CLASS (avf_device_class,) =
1417 .name = "Adaptive Virtual Function (AVF) interface",
1418 .format_device = format_avf_device,
1419 .format_device_name = format_avf_device_name,
1420 .admin_up_down_function = avf_interface_admin_up_down,
1421 .rx_mode_change_function = avf_interface_rx_mode_change,
1422 .rx_redirect_to_node = avf_set_interface_next_node,
1423 .tx_function_n_errors = AVF_TX_N_ERROR,
1424 .tx_function_error_strings = avf_tx_func_error_strings,
1429 avf_init (vlib_main_t * vm)
1431 avf_main_t *am = &avf_main;
1432 clib_error_t *error;
1433 vlib_thread_main_t *tm = vlib_get_thread_main ();
1435 if ((error = vlib_call_init_function (vm, pci_bus_init)))
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");
1447 VLIB_INIT_FUNCTION (avf_init);
1450 * fd.io coding-style-patch-verification: ON
1453 * eval: (c-set-style "gnu")