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 250
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
38 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
40 static pci_device_id_t avf_pci_device_ids[] = {
41 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
42 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
43 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
47 const static char *virtchnl_event_names[] = {
48 #define _(v, n) [v] = #n,
49 foreach_virtchnl_event_code
55 AVF_IRQ_STATE_DISABLED,
56 AVF_IRQ_STATE_ENABLED,
57 AVF_IRQ_STATE_WB_ON_ITR,
61 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
63 u32 dyn_ctl0 = 0, icr0_ena = 0;
65 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
67 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
68 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
71 if (state == AVF_IRQ_STATE_DISABLED)
77 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
79 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
80 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
81 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
82 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
84 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
85 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
90 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
95 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
98 if (state == AVF_IRQ_STATE_DISABLED)
101 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
102 if (state == AVF_IRQ_STATE_WB_ON_ITR)
104 /* minimal ITR interval, use ITR1 */
105 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
106 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
107 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
111 /* configured ITR interval, use ITR0 */
112 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
113 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
116 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
122 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
125 clib_error_t *err = 0;
126 avf_aq_desc_t *d, dc;
127 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
129 d = &ad->atq[ad->atq_next_slot];
130 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
131 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
137 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
138 d->addr_hi = (u32) (pa >> 32);
139 d->addr_lo = (u32) pa;
140 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
142 d->flags |= AVF_AQ_F_BUF;
145 if (ad->flags & AVF_DEVICE_F_ELOG)
146 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
148 CLIB_MEMORY_BARRIER ();
149 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
150 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
153 t0 = vlib_time_now (vm);
155 vlib_process_suspend (vm, suspend_time);
157 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
159 f64 t = vlib_time_now (vm) - t0;
160 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
162 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
163 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
171 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
172 if (d->flags & AVF_AQ_F_ERR)
173 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
174 "%d]", d->opcode, d->retval);
177 if (ad->flags & AVF_DEVICE_F_ELOG)
180 ELOG_TYPE_DECLARE (el) =
182 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
183 "datalen %d retval %d",
184 .format_args = "i4i2i2i2i2i2",
195 ed = ELOG_DATA (&vm->elog_main, el);
196 ed->dev_instance = ad->dev_instance;
197 ed->s_flags = dc.flags;
198 ed->r_flags = d->flags;
199 ed->opcode = dc.opcode;
200 ed->datalen = dc.datalen;
201 ed->retval = d->retval;
209 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
213 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
214 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
216 if (ad->flags & AVF_DEVICE_F_ELOG)
219 ELOG_TYPE_DECLARE (el) =
221 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
222 .format_args = "i4i4i4",
230 ed = ELOG_DATA (&vm->elog_main, el);
231 ed->dev_instance = ad->dev_instance;
240 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
246 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
247 rxq = vec_elt_at_index (ad->rxqs, qid);
248 rxq->size = rxq_size;
250 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
251 sizeof (avf_rx_desc_t),
252 2 * CLIB_CACHE_LINE_BYTES,
255 rxq->buffer_pool_index =
256 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
259 return vlib_physmem_last_error (vm);
261 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
264 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
265 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
266 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
268 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
269 rxq->buffer_pool_index);
272 return clib_error_return (0, "buffer allocation error");
274 rxq->n_enqueued = n_alloc;
275 avf_rx_desc_t *d = rxq->descs;
276 for (i = 0; i < n_alloc; i++)
278 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
279 if (ad->flags & AVF_DEVICE_F_VA_DMA)
280 d->qword[0] = vlib_buffer_get_va (b);
282 d->qword[0] = vlib_buffer_get_pa (vm, b);
286 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
291 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
296 if (qid >= ad->num_queue_pairs)
298 qid = qid % ad->num_queue_pairs;
299 txq = vec_elt_at_index (ad->txqs, qid);
301 clib_spinlock_init (&txq->lock);
302 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
306 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
307 txq = vec_elt_at_index (ad->txqs, qid);
308 txq->size = txq_size;
310 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
311 sizeof (avf_tx_desc_t),
312 2 * CLIB_CACHE_LINE_BYTES,
315 return vlib_physmem_last_error (vm);
317 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
320 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
321 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
323 /* initialize ring of pending RS slots */
324 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
326 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
334 } virtchnl_promisc_info_t;
337 avf_arq_slot_init (avf_device_t * ad, u16 slot)
340 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
342 clib_memset (d, 0, sizeof (avf_aq_desc_t));
343 d->flags = AVF_AQ_F_BUF;
344 d->datalen = AVF_MBOX_BUF_SZ;
345 d->addr_hi = (u32) (pa >> 32);
346 d->addr_lo = (u32) pa;
350 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
352 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
353 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
357 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
362 /* VF MailBox Transmit */
363 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
364 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
366 pa = avf_dma_addr (vm, ad, ad->atq);
367 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
368 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
369 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
370 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
371 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
373 /* VF MailBox Receive */
374 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
375 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
377 for (i = 0; i < AVF_MBOX_LEN; i++)
378 avf_arq_slot_init (ad, i);
380 pa = avf_dma_addr (vm, ad, ad->arq);
382 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
383 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
384 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
385 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
386 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
387 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
389 ad->atq_next_slot = 0;
390 ad->arq_next_slot = 0;
394 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
395 void *in, int in_len, void *out, int out_len)
398 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
400 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
402 /* suppress interrupt in the next adminq receive slot
403 as we are going to wait for response
404 we only need interrupts when event is received */
405 d = &ad->arq[ad->arq_next_slot];
406 d->flags |= AVF_AQ_F_SI;
408 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
411 t0 = vlib_time_now (vm);
413 head = avf_get_u32 (ad->bar0, AVF_ARQH);
415 if (ad->arq_next_slot == head)
417 f64 t = vlib_time_now (vm) - t0;
418 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
420 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
421 return clib_error_return (0, "timeout");
423 vlib_process_suspend (vm, suspend_time);
428 d = &ad->arq[ad->arq_next_slot];
430 if (d->v_opcode == VIRTCHNL_OP_EVENT)
432 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
433 virtchnl_pf_event_t *e;
435 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
436 ((d->flags & AVF_AQ_F_BUF) == 0))
437 return clib_error_return (0, "event message error");
439 vec_add2 (ad->events, e, 1);
440 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
441 avf_arq_slot_init (ad, ad->arq_next_slot);
444 t0 = vlib_time_now (vm);
445 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
449 if (d->v_opcode != op)
452 clib_error_return (0,
453 "unexpected message receiver [v_opcode = %u, "
454 "expected %u, v_retval %d]", d->v_opcode, op,
461 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
462 d->v_opcode, d->v_retval);
466 if (d->flags & AVF_AQ_F_BUF)
468 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
469 clib_memcpy_fast (out, buf, out_len);
472 avf_arq_slot_init (ad, ad->arq_next_slot);
473 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
475 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
479 if (ad->flags & AVF_DEVICE_F_ELOG)
482 ELOG_TYPE_DECLARE (el) =
484 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
485 .format_args = "i4t4i4i4",
486 .n_enum_strings = VIRTCHNL_N_OPS,
488 #define _(v, n) [v] = #n,
500 ed = ELOG_DATA (&vm->elog_main, el);
501 ed->dev_instance = ad->dev_instance;
503 ed->v_opcode_val = op;
504 ed->v_retval = d->v_retval;
511 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
512 virtchnl_version_info_t * ver)
514 clib_error_t *err = 0;
515 virtchnl_version_info_t myver = {
516 .major = VIRTCHNL_VERSION_MAJOR,
517 .minor = VIRTCHNL_VERSION_MINOR,
520 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
522 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
523 sizeof (virtchnl_version_info_t), ver,
524 sizeof (virtchnl_version_info_t));
533 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
534 virtchnl_vf_resource_t * res)
536 clib_error_t *err = 0;
537 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
538 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
539 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
540 VIRTCHNL_VF_CAP_ADV_LINK_SPEED);
542 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
543 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
544 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
549 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
550 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
551 "rss_key_size %u rss_lut_size %u",
552 res->num_vsis, res->num_queue_pairs, res->max_vectors,
553 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
555 for (i = 0; i < res->num_vsis; i++)
556 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
557 "num_queue_pairs %u vsi_type %u qset_handle %u "
558 "default_mac_addr %U", i,
559 res->vsi_res[i].vsi_id,
560 res->vsi_res[i].num_queue_pairs,
561 res->vsi_res[i].vsi_type,
562 res->vsi_res[i].qset_handle,
563 format_ethernet_address,
564 res->vsi_res[i].default_mac_addr);
571 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
573 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
576 virtchnl_rss_lut_t *rl;
578 clib_memset (msg, 0, msg_len);
579 rl = (virtchnl_rss_lut_t *) msg;
580 rl->vsi_id = ad->vsi_id;
581 rl->lut_entries = ad->rss_lut_size;
582 for (i = 0; i < ad->rss_lut_size; i++)
583 rl->lut[i] = i % ad->n_rx_queues;
585 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
586 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
587 rl->lut, rl->lut_entries);
589 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
594 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
596 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
599 virtchnl_rss_key_t *rk;
601 clib_memset (msg, 0, msg_len);
602 rk = (virtchnl_rss_key_t *) msg;
603 rk->vsi_id = ad->vsi_id;
604 rk->key_len = ad->rss_key_size;
605 u32 seed = random_default_seed ();
606 for (i = 0; i < ad->rss_key_size; i++)
607 rk->key[i] = (u8) random_u32 (&seed);
609 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
610 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
613 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
618 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
620 avf_log_debug (ad, "disable_vlan_stripping");
622 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
627 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad, int is_enable)
629 virtchnl_promisc_info_t pi = { 0 };
631 pi.vsi_id = ad->vsi_id;
634 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
636 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
637 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
638 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
640 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
641 sizeof (virtchnl_promisc_info_t), 0, 0);
646 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
649 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
650 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
651 sizeof (virtchnl_queue_pair_info_t);
653 virtchnl_vsi_queue_config_info_t *ci;
655 clib_memset (msg, 0, msg_len);
656 ci = (virtchnl_vsi_queue_config_info_t *) msg;
657 ci->vsi_id = ad->vsi_id;
658 ci->num_queue_pairs = n_qp;
660 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
661 ad->vsi_id, ci->num_queue_pairs);
663 for (i = 0; i < n_qp; i++)
665 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
666 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
668 rxq->vsi_id = ad->vsi_id;
670 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
671 if (i < vec_len (ad->rxqs))
673 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
674 rxq->ring_len = q->size;
675 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
676 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
677 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
679 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
680 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
681 i, rxq->max_pkt_size, rxq->ring_len,
682 rxq->databuffer_size, rxq->dma_ring_addr);
684 txq->vsi_id = ad->vsi_id;
686 if (i < vec_len (ad->txqs))
688 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
689 txq->ring_len = q->size;
690 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
692 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
693 "dma_ring_addr 0x%llx", i, txq->ring_len,
697 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
702 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
704 int msg_len = sizeof (virtchnl_irq_map_info_t) +
705 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
707 virtchnl_irq_map_info_t *imi;
709 clib_memset (msg, 0, msg_len);
710 imi = (virtchnl_irq_map_info_t *) msg;
711 imi->num_vectors = ad->n_rx_irqs;
713 for (int i = 0; i < ad->n_rx_irqs; i++)
715 imi->vecmap[i].vector_id = i + 1;
716 imi->vecmap[i].vsi_id = ad->vsi_id;
717 if (ad->n_rx_irqs == ad->n_rx_queues)
718 imi->vecmap[i].rxq_map = 1 << i;
720 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
722 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
723 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
724 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
728 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
733 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
736 sizeof (virtchnl_ether_addr_list_t) +
737 count * sizeof (virtchnl_ether_addr_t);
739 virtchnl_ether_addr_list_t *al;
742 clib_memset (msg, 0, msg_len);
743 al = (virtchnl_ether_addr_list_t *) msg;
744 al->vsi_id = ad->vsi_id;
745 al->num_elements = count;
747 avf_log_debug (ad, "add_eth_addr: vsi_id %u num_elements %u",
748 ad->vsi_id, al->num_elements);
750 for (i = 0; i < count; i++)
752 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
753 avf_log_debug (ad, "add_eth_addr[%u]: %U", i,
754 format_ethernet_address, &al->list[i].addr);
756 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
761 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
763 virtchnl_queue_select_t qs = { 0 };
765 qs.vsi_id = ad->vsi_id;
769 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
770 ad->vsi_id, qs.rx_queues, qs.tx_queues);
776 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
777 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
782 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
783 sizeof (virtchnl_queue_select_t), 0, 0);
787 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
788 virtchnl_eth_stats_t * es)
790 virtchnl_queue_select_t qs = { 0 };
791 qs.vsi_id = ad->vsi_id;
793 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
795 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
796 &qs, sizeof (virtchnl_queue_select_t),
797 es, sizeof (virtchnl_eth_stats_t));
801 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
803 avf_aq_desc_t d = { 0 };
806 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
808 avf_log_debug (ad, "reset");
811 d.v_opcode = VIRTCHNL_OP_RESET_VF;
812 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
815 t0 = vlib_time_now (vm);
817 vlib_process_suspend (vm, suspend_time);
819 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
821 if (rstat == 2 || rstat == 3)
823 avf_log_debug (ad, "reset completed in %.3fs", t);
827 t = vlib_time_now (vm) - t0;
828 if (t > AVF_RESET_MAX_WAIT_TIME)
830 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
831 return clib_error_return (0, "reset failed (timeout)");
839 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
841 virtchnl_vf_res_request_t res_req = { 0 };
844 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
846 res_req.num_queue_pairs = num_queue_pairs;
848 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
850 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
851 sizeof (virtchnl_vf_res_request_t), &res_req,
852 sizeof (virtchnl_vf_res_request_t));
855 * if PF responds, the request failed
856 * else PF initializes restart and avf_send_to_pf returns an error
860 return clib_error_return (0, "requested more than %u queue pairs",
861 res_req.num_queue_pairs);
864 t0 = vlib_time_now (vm);
866 vlib_process_suspend (vm, suspend_time);
867 t = vlib_time_now (vm) - t0;
869 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
871 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
874 if (t > AVF_RESET_MAX_WAIT_TIME)
876 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
877 return clib_error_return (0, "request queues failed (timeout)");
888 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
889 avf_create_if_args_t * args)
891 virtchnl_version_info_t ver = { 0 };
892 virtchnl_vf_resource_t res = { 0 };
894 vlib_thread_main_t *tm = vlib_get_thread_main ();
897 avf_adminq_init (vm, ad);
899 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
902 /* we failed to get more queues, but still we want to proceed */
903 clib_error_free (error);
905 if ((error = avf_device_reset (vm, ad)))
909 avf_adminq_init (vm, ad);
914 if ((error = avf_op_version (vm, ad, &ver)))
917 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
918 ver.minor != VIRTCHNL_VERSION_MINOR)
919 return clib_error_return (0, "incompatible protocol version "
920 "(remote %d.%d)", ver.major, ver.minor);
923 * OP_GET_VF_RESOURCES
925 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
928 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
929 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
931 ad->vsi_id = res.vsi_res[0].vsi_id;
932 ad->feature_bitmap = res.vf_offload_flags;
933 ad->num_queue_pairs = res.num_queue_pairs;
934 ad->max_vectors = res.max_vectors;
935 ad->max_mtu = res.max_mtu;
936 ad->rss_key_size = res.rss_key_size;
937 ad->rss_lut_size = res.rss_lut_size;
938 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
940 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
943 * Disable VLAN stripping
945 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
951 if (args->rxq_num == 0)
955 else if (args->rxq_num > ad->num_queue_pairs)
957 args->rxq_num = ad->num_queue_pairs;
958 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
959 "Using %u rx queues.", args->rxq_num);
962 for (i = 0; i < args->rxq_num; i++)
963 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
966 for (i = 0; i < tm->n_vlib_mains; i++)
967 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
970 if (ad->max_vectors > ad->n_rx_queues)
972 ad->flags |= AVF_DEVICE_F_RX_INT;
973 ad->n_rx_irqs = args->rxq_num;
979 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
980 (error = avf_op_config_rss_lut (vm, ad)))
983 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
984 (error = avf_op_config_rss_key (vm, ad)))
987 if ((error = avf_op_config_vsi_queues (vm, ad)))
990 if ((error = avf_op_config_irq_map (vm, ad)))
993 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
995 for (i = 0; i < ad->n_rx_irqs; i++)
996 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
997 AVF_IRQ_STATE_ENABLED);
999 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
1002 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1003 pow2_mask (ad->n_tx_queues))))
1006 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1011 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1013 avf_main_t *am = &avf_main;
1014 vnet_main_t *vnm = vnet_get_main ();
1015 virtchnl_pf_event_t *e;
1018 if (ad->flags & AVF_DEVICE_F_ERROR)
1021 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1024 ASSERT (ad->error == 0);
1026 /* do not process device in reset state */
1027 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1028 if (r != VIRTCHNL_VFR_VFACTIVE)
1031 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1032 if ((r & 0xf0000000) != (1ULL << 31))
1034 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1035 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1039 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1040 if ((r & 0xf0000000) != (1ULL << 31))
1042 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1043 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1048 avf_op_get_stats (vm, ad, &ad->eth_stats);
1051 vec_foreach (e, ad->events)
1053 avf_log_debug (ad, "event: %s (%u) sev %d",
1054 virtchnl_event_names[e->event], e->event, e->severity);
1055 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1058 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1062 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1063 link_up = e->event_data.link_event_adv.link_status;
1065 link_up = e->event_data.link_event.link_status;
1067 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1068 mbps = e->event_data.link_event_adv.link_speed;
1069 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1071 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1073 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1075 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1077 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1079 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1081 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1084 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1087 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1089 ad->flags |= AVF_DEVICE_F_LINK_UP;
1090 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1091 VNET_HW_INTERFACE_FLAG_LINK_UP);
1092 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1093 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1095 ad->link_speed = mbps;
1097 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1099 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1103 if (ad->flags & AVF_DEVICE_F_ELOG)
1105 ELOG_TYPE_DECLARE (el) =
1107 .format = "avf[%d] link change: link_status %d "
1108 "link_speed %d mbps",
1109 .format_args = "i4i1i4",
1117 ed = ELOG_DATA (&vm->elog_main, el);
1118 ed->dev_instance = ad->dev_instance;
1119 ed->link_status = link_up;
1120 ed->link_speed = mbps;
1125 if (ad->flags & AVF_DEVICE_F_ELOG)
1127 ELOG_TYPE_DECLARE (el) =
1129 .format = "avf[%d] unknown event: event %d severity %d",
1130 .format_args = "i4i4i1i1",
1138 ed = ELOG_DATA (&vm->elog_main, el);
1139 ed->dev_instance = ad->dev_instance;
1140 ed->event = e->event;
1141 ed->severity = e->severity;
1146 vec_reset_length (ad->events);
1151 ad->flags |= AVF_DEVICE_F_ERROR;
1152 ASSERT (ad->error != 0);
1153 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
1157 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1159 vlib_main_t *vm = vlib_get_main ();
1160 avf_main_t *am = &avf_main;
1161 avf_device_t *ad = vec_elt_at_index (am->devices, hw->dev_instance);
1162 clib_error_t *error;
1167 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1168 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1170 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1171 ad->flags |= AVF_DEVICE_F_PROMISC;
1177 promisc_enabled = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1178 if ((error = avf_config_promisc_mode (vm, ad, promisc_enabled)))
1180 avf_log_err (ad, "%s: %U", format_clib_error, error);
1181 clib_error_free (error);
1189 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1191 avf_main_t *am = &avf_main;
1193 uword *event_data = 0, event_type;
1194 int enabled = 0, irq;
1195 f64 last_run_duration = 0;
1196 f64 last_periodic_time = 0;
1201 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1203 vlib_process_wait_for_event (vm);
1205 event_type = vlib_process_get_events (vm, &event_data);
1211 last_periodic_time = vlib_time_now (vm);
1213 case AVF_PROCESS_EVENT_START:
1216 case AVF_PROCESS_EVENT_DELETE_IF:
1217 for (int i = 0; i < vec_len (event_data); i++)
1219 ad = pool_elt_at_index (am->devices, event_data[i]);
1220 avf_delete_if (vm, ad, /* with_barrier */ 1);
1222 if (pool_elts (am->devices) < 1)
1225 case AVF_PROCESS_EVENT_AQ_INT:
1232 vec_reset_length (event_data);
1238 pool_foreach (ad, am->devices,
1240 avf_process_one_device (vm, ad, irq);
1243 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1249 VLIB_REGISTER_NODE (avf_process_node) = {
1250 .function = avf_process,
1251 .type = VLIB_NODE_TYPE_PROCESS,
1252 .name = "avf-process",
1257 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1259 avf_main_t *am = &avf_main;
1260 uword pd = vlib_pci_get_private_data (vm, h);
1261 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1264 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1266 if (ad->flags & AVF_DEVICE_F_ELOG)
1269 ELOG_TYPE_DECLARE (el) =
1271 .format = "avf[%d] irq 0: icr0 0x%x",
1272 .format_args = "i4i4",
1281 ed = ELOG_DATA (&vm->elog_main, el);
1282 ed->dev_instance = ad->dev_instance;
1286 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1288 /* bit 30 - Send/Receive Admin queue interrupt indication */
1289 if (icr0 & (1 << 30))
1290 vlib_process_signal_event (vm, avf_process_node.index,
1291 AVF_PROCESS_EVENT_AQ_INT, 0);
1295 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1297 vnet_main_t *vnm = vnet_get_main ();
1298 avf_main_t *am = &avf_main;
1299 uword pd = vlib_pci_get_private_data (vm, h);
1300 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1302 if (ad->flags & AVF_DEVICE_F_ELOG)
1305 ELOG_TYPE_DECLARE (el) =
1307 .format = "avf[%d] irq %d: received",
1308 .format_args = "i4i2",
1317 ed = ELOG_DATA (&vm->elog_main, el);
1318 ed->dev_instance = ad->dev_instance;
1324 if (ad->flags & AVF_DEVICE_F_RX_INT && ad->rxqs[line].int_mode)
1325 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, line);
1326 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1330 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1332 vnet_main_t *vnm = vnet_get_main ();
1333 avf_main_t *am = &avf_main;
1336 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1338 if (ad->hw_if_index)
1341 vlib_worker_thread_barrier_sync (vm);
1342 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1343 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1344 ethernet_delete_interface (vnm, ad->hw_if_index);
1346 vlib_worker_thread_barrier_release (vm);
1349 vlib_pci_device_close (vm, ad->pci_dev_handle);
1351 vlib_physmem_free (vm, ad->atq);
1352 vlib_physmem_free (vm, ad->arq);
1353 vlib_physmem_free (vm, ad->atq_bufs);
1354 vlib_physmem_free (vm, ad->arq_bufs);
1357 vec_foreach_index (i, ad->rxqs)
1359 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1360 vlib_physmem_free (vm, (void *) rxq->descs);
1361 if (rxq->n_enqueued)
1362 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1364 vec_free (rxq->bufs);
1367 vec_free (ad->rxqs);
1370 vec_foreach_index (i, ad->txqs)
1372 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1373 vlib_physmem_free (vm, (void *) txq->descs);
1374 if (txq->n_enqueued)
1376 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1377 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1380 vec_free (txq->bufs);
1381 clib_ring_free (txq->rs_slots);
1384 vec_free (ad->txqs);
1385 vec_free (ad->name);
1387 clib_error_free (ad->error);
1388 clib_memset (ad, 0, sizeof (*ad));
1389 pool_put (am->devices, ad);
1393 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1395 vnet_main_t *vnm = vnet_get_main ();
1396 avf_main_t *am = &avf_main;
1398 vlib_pci_dev_handle_t h;
1399 clib_error_t *error = 0;
1402 /* check input args */
1403 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1404 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1406 if ((args->rxq_size & (args->rxq_size - 1))
1407 || (args->txq_size & (args->txq_size - 1)))
1409 args->rv = VNET_API_ERROR_INVALID_VALUE;
1411 clib_error_return (error, "queue size must be a power of two");
1415 pool_get (am->devices, ad);
1416 ad->dev_instance = ad - am->devices;
1417 ad->per_interface_next_index = ~0;
1418 ad->name = vec_dup (args->name);
1420 if (args->enable_elog)
1421 ad->flags |= AVF_DEVICE_F_ELOG;
1423 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1426 pool_put (am->devices, ad);
1427 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1429 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1433 ad->pci_dev_handle = h;
1434 ad->pci_addr = args->addr;
1435 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1437 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1439 if ((error = vlib_pci_bus_master_enable (vm, h)))
1442 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1445 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1447 CLIB_CACHE_LINE_BYTES,
1451 error = vlib_physmem_last_error (vm);
1455 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1458 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1460 CLIB_CACHE_LINE_BYTES,
1464 error = vlib_physmem_last_error (vm);
1468 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1471 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1473 CLIB_CACHE_LINE_BYTES,
1475 if (ad->atq_bufs == 0)
1477 error = vlib_physmem_last_error (vm);
1481 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1484 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1486 CLIB_CACHE_LINE_BYTES,
1488 if (ad->arq_bufs == 0)
1490 error = vlib_physmem_last_error (vm);
1494 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1497 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1498 ad->flags |= AVF_DEVICE_F_VA_DMA;
1500 if ((error = avf_device_init (vm, am, ad, args)))
1503 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1504 &avf_irq_0_handler)))
1507 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1508 &avf_irq_n_handler)))
1511 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1514 if ((error = vlib_pci_intr_enable (vm, h)))
1517 /* create interface */
1518 error = ethernet_register_interface (vnm, avf_device_class.index,
1519 ad->dev_instance, ad->hwaddr,
1520 &ad->hw_if_index, avf_flag_change);
1525 /* Indicate ability to support L3 DMAC filtering and
1526 * initialize interface to L3 non-promisc mode */
1527 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1528 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
1529 ethernet_set_flags (vnm, ad->hw_if_index,
1530 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1532 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1533 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1535 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1536 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1537 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1538 avf_input_node.index);
1540 for (i = 0; i < ad->n_rx_queues; i++)
1541 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1543 if (pool_elts (am->devices) == 1)
1544 vlib_process_signal_event (vm, avf_process_node.index,
1545 AVF_PROCESS_EVENT_START, 0);
1550 avf_delete_if (vm, ad, /* with_barrier */ 0);
1551 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1552 args->error = clib_error_return (error, "pci-addr %U",
1553 format_vlib_pci_addr, &args->addr);
1554 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1557 static clib_error_t *
1558 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1560 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1561 avf_main_t *am = &avf_main;
1562 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1563 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1565 if (ad->flags & AVF_DEVICE_F_ERROR)
1566 return clib_error_return (0, "device is in error state");
1570 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1571 VNET_HW_INTERFACE_FLAG_LINK_UP);
1572 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1576 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1577 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1582 static clib_error_t *
1583 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1584 vnet_hw_interface_rx_mode mode)
1586 avf_main_t *am = &avf_main;
1587 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1588 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1589 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1591 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1593 if (rxq->int_mode == 0)
1595 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1596 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1598 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1603 if (rxq->int_mode == 1)
1605 if (ad->n_rx_irqs != ad->n_rx_queues)
1606 return clib_error_return (0, "not enough interrupt lines");
1608 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1615 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1618 avf_main_t *am = &avf_main;
1619 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1620 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1622 /* Shut off redirection */
1623 if (node_index == ~0)
1625 ad->per_interface_next_index = node_index;
1629 ad->per_interface_next_index =
1630 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1633 static char *avf_tx_func_error_strings[] = {
1635 foreach_avf_tx_func_error
1640 avf_clear_hw_interface_counters (u32 instance)
1642 avf_main_t *am = &avf_main;
1643 avf_device_t *ad = vec_elt_at_index (am->devices, instance);
1644 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1645 &ad->eth_stats, sizeof (ad->eth_stats));
1649 VNET_DEVICE_CLASS (avf_device_class,) =
1651 .name = "Adaptive Virtual Function (AVF) interface",
1652 .clear_counters = avf_clear_hw_interface_counters,
1653 .format_device = format_avf_device,
1654 .format_device_name = format_avf_device_name,
1655 .admin_up_down_function = avf_interface_admin_up_down,
1656 .rx_mode_change_function = avf_interface_rx_mode_change,
1657 .rx_redirect_to_node = avf_set_interface_next_node,
1658 .tx_function_n_errors = AVF_TX_N_ERROR,
1659 .tx_function_error_strings = avf_tx_func_error_strings,
1664 avf_init (vlib_main_t * vm)
1666 avf_main_t *am = &avf_main;
1667 vlib_thread_main_t *tm = vlib_get_thread_main ();
1669 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1670 CLIB_CACHE_LINE_BYTES);
1672 am->log_class = vlib_log_register_class ("avf", 0);
1673 vlib_log_debug (am->log_class, "initialized");
1679 VLIB_INIT_FUNCTION (avf_init) =
1681 .runs_after = VLIB_INITS ("pci_bus_init"),
1686 * fd.io coding-style-patch-verification: ON
1689 * eval: (c-set-style "gnu")