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
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},
46 const static char *virtchnl_event_names[] = {
47 #define _(v, n) [v] = #n,
48 foreach_virtchnl_event_code
54 AVF_IRQ_STATE_DISABLED,
55 AVF_IRQ_STATE_ENABLED,
56 AVF_IRQ_STATE_WB_ON_ITR,
60 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
62 u32 dyn_ctl0 = 0, icr0_ena = 0;
64 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
66 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
67 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
70 if (state == AVF_IRQ_STATE_DISABLED)
76 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
78 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
79 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
80 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
81 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
83 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
84 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
89 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
94 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
97 if (state == AVF_IRQ_STATE_DISABLED)
100 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
101 if (state == AVF_IRQ_STATE_WB_ON_ITR)
103 /* minimal ITR interval, use ITR1 */
104 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
105 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
106 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
110 /* configured ITR interval, use ITR0 */
111 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
112 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
115 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
121 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
124 clib_error_t *err = 0;
125 avf_aq_desc_t *d, dc;
126 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
128 d = &ad->atq[ad->atq_next_slot];
129 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
130 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
136 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
137 d->addr_hi = (u32) (pa >> 32);
138 d->addr_lo = (u32) pa;
139 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
141 d->flags |= AVF_AQ_F_BUF;
144 if (ad->flags & AVF_DEVICE_F_ELOG)
145 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
147 CLIB_MEMORY_BARRIER ();
148 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
149 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
152 t0 = vlib_time_now (vm);
154 vlib_process_suspend (vm, suspend_time);
156 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
158 f64 t = vlib_time_now (vm) - t0;
159 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
161 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
162 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
170 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
171 if (d->flags & AVF_AQ_F_ERR)
172 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
173 "%d]", d->opcode, d->retval);
176 if (ad->flags & AVF_DEVICE_F_ELOG)
179 ELOG_TYPE_DECLARE (el) =
181 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
182 "datalen %d retval %d",
183 .format_args = "i4i2i2i2i2i2",
194 ed = ELOG_DATA (&vm->elog_main, el);
195 ed->dev_instance = ad->dev_instance;
196 ed->s_flags = dc.flags;
197 ed->r_flags = d->flags;
198 ed->opcode = dc.opcode;
199 ed->datalen = dc.datalen;
200 ed->retval = d->retval;
208 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
212 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
213 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
215 if (ad->flags & AVF_DEVICE_F_ELOG)
218 ELOG_TYPE_DECLARE (el) =
220 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
221 .format_args = "i4i4i4",
229 ed = ELOG_DATA (&vm->elog_main, el);
230 ed->dev_instance = ad->dev_instance;
239 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
245 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
246 rxq = vec_elt_at_index (ad->rxqs, qid);
247 rxq->size = rxq_size;
249 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
250 sizeof (avf_rx_desc_t),
251 2 * CLIB_CACHE_LINE_BYTES,
254 rxq->buffer_pool_index =
255 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
258 return vlib_physmem_last_error (vm);
260 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
263 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
264 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
265 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
267 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
268 rxq->buffer_pool_index);
271 return clib_error_return (0, "buffer allocation error");
273 rxq->n_enqueued = n_alloc;
274 avf_rx_desc_t *d = rxq->descs;
275 for (i = 0; i < n_alloc; i++)
277 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
278 if (ad->flags & AVF_DEVICE_F_VA_DMA)
279 d->qword[0] = vlib_buffer_get_va (b);
281 d->qword[0] = vlib_buffer_get_pa (vm, b);
285 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
290 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
295 if (qid >= ad->num_queue_pairs)
297 qid = qid % ad->num_queue_pairs;
298 txq = vec_elt_at_index (ad->txqs, qid);
300 clib_spinlock_init (&txq->lock);
301 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
305 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
306 txq = vec_elt_at_index (ad->txqs, qid);
307 txq->size = txq_size;
309 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
310 sizeof (avf_tx_desc_t),
311 2 * CLIB_CACHE_LINE_BYTES,
314 return vlib_physmem_last_error (vm);
316 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
319 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
320 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
322 /* initialize ring of pending RS slots */
323 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
325 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
333 } virtchnl_promisc_info_t;
336 avf_arq_slot_init (avf_device_t * ad, u16 slot)
339 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
341 clib_memset (d, 0, sizeof (avf_aq_desc_t));
342 d->flags = AVF_AQ_F_BUF;
343 d->datalen = AVF_MBOX_BUF_SZ;
344 d->addr_hi = (u32) (pa >> 32);
345 d->addr_lo = (u32) pa;
349 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
351 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
352 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
356 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
361 /* VF MailBox Transmit */
362 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
363 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
365 pa = avf_dma_addr (vm, ad, ad->atq);
366 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
367 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
368 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
369 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
370 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
372 /* VF MailBox Receive */
373 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
374 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
376 for (i = 0; i < AVF_MBOX_LEN; i++)
377 avf_arq_slot_init (ad, i);
379 pa = avf_dma_addr (vm, ad, ad->arq);
381 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
382 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
383 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
384 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
385 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
386 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
388 ad->atq_next_slot = 0;
389 ad->arq_next_slot = 0;
393 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
394 void *in, int in_len, void *out, int out_len)
397 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
399 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
401 /* suppress interrupt in the next adminq receive slot
402 as we are going to wait for response
403 we only need interrupts when event is received */
404 d = &ad->arq[ad->arq_next_slot];
405 d->flags |= AVF_AQ_F_SI;
407 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
410 t0 = vlib_time_now (vm);
412 head = avf_get_u32 (ad->bar0, AVF_ARQH);
414 if (ad->arq_next_slot == head)
416 f64 t = vlib_time_now (vm) - t0;
417 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
419 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
420 return clib_error_return (0, "timeout");
422 vlib_process_suspend (vm, suspend_time);
427 d = &ad->arq[ad->arq_next_slot];
429 if (d->v_opcode == VIRTCHNL_OP_EVENT)
431 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
432 virtchnl_pf_event_t *e;
434 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
435 ((d->flags & AVF_AQ_F_BUF) == 0))
436 return clib_error_return (0, "event message error");
438 vec_add2 (ad->events, e, 1);
439 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
440 avf_arq_slot_init (ad, ad->arq_next_slot);
443 t0 = vlib_time_now (vm);
444 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
448 if (d->v_opcode != op)
451 clib_error_return (0,
452 "unexpected message receiver [v_opcode = %u, "
453 "expected %u, v_retval %d]", d->v_opcode, op,
460 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
461 d->v_opcode, d->v_retval);
465 if (d->flags & AVF_AQ_F_BUF)
467 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
468 clib_memcpy_fast (out, buf, out_len);
471 avf_arq_slot_init (ad, ad->arq_next_slot);
472 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
474 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
478 if (ad->flags & AVF_DEVICE_F_ELOG)
481 ELOG_TYPE_DECLARE (el) =
483 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
484 .format_args = "i4t4i4i4",
485 .n_enum_strings = VIRTCHNL_N_OPS,
487 #define _(v, n) [v] = #n,
499 ed = ELOG_DATA (&vm->elog_main, el);
500 ed->dev_instance = ad->dev_instance;
502 ed->v_opcode_val = op;
503 ed->v_retval = d->v_retval;
510 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
511 virtchnl_version_info_t * ver)
513 clib_error_t *err = 0;
514 virtchnl_version_info_t myver = {
515 .major = VIRTCHNL_VERSION_MAJOR,
516 .minor = VIRTCHNL_VERSION_MINOR,
519 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
521 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
522 sizeof (virtchnl_version_info_t), ver,
523 sizeof (virtchnl_version_info_t));
532 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
533 virtchnl_vf_resource_t * res)
535 clib_error_t *err = 0;
536 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
537 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
538 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
539 VIRTCHNL_VF_CAP_ADV_LINK_SPEED);
541 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
542 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
543 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
548 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
549 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
550 "rss_key_size %u rss_lut_size %u",
551 res->num_vsis, res->num_queue_pairs, res->max_vectors,
552 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
554 for (i = 0; i < res->num_vsis; i++)
555 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
556 "num_queue_pairs %u vsi_type %u qset_handle %u "
557 "default_mac_addr %U", i,
558 res->vsi_res[i].vsi_id,
559 res->vsi_res[i].num_queue_pairs,
560 res->vsi_res[i].vsi_type,
561 res->vsi_res[i].qset_handle,
562 format_ethernet_address,
563 res->vsi_res[i].default_mac_addr);
570 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
572 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
575 virtchnl_rss_lut_t *rl;
577 clib_memset (msg, 0, msg_len);
578 rl = (virtchnl_rss_lut_t *) msg;
579 rl->vsi_id = ad->vsi_id;
580 rl->lut_entries = ad->rss_lut_size;
581 for (i = 0; i < ad->rss_lut_size; i++)
582 rl->lut[i] = i % ad->n_rx_queues;
584 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
585 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
586 rl->lut, rl->lut_entries);
588 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
593 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
595 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
598 virtchnl_rss_key_t *rk;
600 clib_memset (msg, 0, msg_len);
601 rk = (virtchnl_rss_key_t *) msg;
602 rk->vsi_id = ad->vsi_id;
603 rk->key_len = ad->rss_key_size;
604 u32 seed = random_default_seed ();
605 for (i = 0; i < ad->rss_key_size; i++)
606 rk->key[i] = (u8) random_u32 (&seed);
608 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
609 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
612 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
617 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
619 avf_log_debug (ad, "disable_vlan_stripping");
621 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
626 avf_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad, int is_enable)
628 virtchnl_promisc_info_t pi = { 0 };
630 pi.vsi_id = ad->vsi_id;
633 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
635 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
636 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
637 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
639 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
640 sizeof (virtchnl_promisc_info_t), 0, 0);
645 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
648 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
649 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
650 sizeof (virtchnl_queue_pair_info_t);
652 virtchnl_vsi_queue_config_info_t *ci;
654 clib_memset (msg, 0, msg_len);
655 ci = (virtchnl_vsi_queue_config_info_t *) msg;
656 ci->vsi_id = ad->vsi_id;
657 ci->num_queue_pairs = n_qp;
659 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
660 ad->vsi_id, ci->num_queue_pairs);
662 for (i = 0; i < n_qp; i++)
664 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
665 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
667 rxq->vsi_id = ad->vsi_id;
669 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
670 if (i < vec_len (ad->rxqs))
672 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
673 rxq->ring_len = q->size;
674 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
675 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
676 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
678 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
679 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
680 i, rxq->max_pkt_size, rxq->ring_len,
681 rxq->databuffer_size, rxq->dma_ring_addr);
683 txq->vsi_id = ad->vsi_id;
685 if (i < vec_len (ad->txqs))
687 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
688 txq->ring_len = q->size;
689 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
691 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
692 "dma_ring_addr 0x%llx", i, txq->ring_len,
696 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
701 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
703 int msg_len = sizeof (virtchnl_irq_map_info_t) +
704 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
706 virtchnl_irq_map_info_t *imi;
708 clib_memset (msg, 0, msg_len);
709 imi = (virtchnl_irq_map_info_t *) msg;
710 imi->num_vectors = ad->n_rx_irqs;
712 for (int i = 0; i < ad->n_rx_irqs; i++)
714 imi->vecmap[i].vector_id = i + 1;
715 imi->vecmap[i].vsi_id = ad->vsi_id;
716 if (ad->n_rx_irqs == ad->n_rx_queues)
717 imi->vecmap[i].rxq_map = 1 << i;
719 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
721 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
722 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
723 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
727 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
732 avf_op_add_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count, u8 * macs)
735 sizeof (virtchnl_ether_addr_list_t) +
736 count * sizeof (virtchnl_ether_addr_t);
738 virtchnl_ether_addr_list_t *al;
741 clib_memset (msg, 0, msg_len);
742 al = (virtchnl_ether_addr_list_t *) msg;
743 al->vsi_id = ad->vsi_id;
744 al->num_elements = count;
746 avf_log_debug (ad, "add_eth_addr: vsi_id %u num_elements %u",
747 ad->vsi_id, al->num_elements);
749 for (i = 0; i < count; i++)
751 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
752 avf_log_debug (ad, "add_eth_addr[%u]: %U", i,
753 format_ethernet_address, &al->list[i].addr);
755 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0,
760 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
762 virtchnl_queue_select_t qs = { 0 };
764 qs.vsi_id = ad->vsi_id;
768 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
769 ad->vsi_id, qs.rx_queues, qs.tx_queues);
775 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
776 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
781 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
782 sizeof (virtchnl_queue_select_t), 0, 0);
786 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
787 virtchnl_eth_stats_t * es)
789 virtchnl_queue_select_t qs = { 0 };
790 qs.vsi_id = ad->vsi_id;
792 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
794 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
795 &qs, sizeof (virtchnl_queue_select_t),
796 es, sizeof (virtchnl_eth_stats_t));
800 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
802 avf_aq_desc_t d = { 0 };
805 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
807 avf_log_debug (ad, "reset");
810 d.v_opcode = VIRTCHNL_OP_RESET_VF;
811 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
814 t0 = vlib_time_now (vm);
816 vlib_process_suspend (vm, suspend_time);
818 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
820 if (rstat == 2 || rstat == 3)
822 avf_log_debug (ad, "reset completed in %.3fs", t);
826 t = vlib_time_now (vm) - t0;
827 if (t > AVF_RESET_MAX_WAIT_TIME)
829 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
830 return clib_error_return (0, "reset failed (timeout)");
838 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
840 virtchnl_vf_res_request_t res_req = { 0 };
843 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
845 res_req.num_queue_pairs = num_queue_pairs;
847 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
849 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
850 sizeof (virtchnl_vf_res_request_t), &res_req,
851 sizeof (virtchnl_vf_res_request_t));
854 * if PF responds, the request failed
855 * else PF initializes restart and avf_send_to_pf returns an error
859 return clib_error_return (0, "requested more than %u queue pairs",
860 res_req.num_queue_pairs);
863 t0 = vlib_time_now (vm);
865 vlib_process_suspend (vm, suspend_time);
866 t = vlib_time_now (vm) - t0;
868 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
870 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
873 if (t > AVF_RESET_MAX_WAIT_TIME)
875 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
876 return clib_error_return (0, "request queues failed (timeout)");
887 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
888 avf_create_if_args_t * args)
890 virtchnl_version_info_t ver = { 0 };
891 virtchnl_vf_resource_t res = { 0 };
893 vlib_thread_main_t *tm = vlib_get_thread_main ();
896 avf_adminq_init (vm, ad);
898 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
901 /* we failed to get more queues, but still we want to proceed */
902 clib_error_free (error);
904 if ((error = avf_device_reset (vm, ad)))
908 avf_adminq_init (vm, ad);
913 if ((error = avf_op_version (vm, ad, &ver)))
916 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
917 ver.minor != VIRTCHNL_VERSION_MINOR)
918 return clib_error_return (0, "incompatible protocol version "
919 "(remote %d.%d)", ver.major, ver.minor);
922 * OP_GET_VF_RESOURCES
924 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
927 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
928 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
930 ad->vsi_id = res.vsi_res[0].vsi_id;
931 ad->feature_bitmap = res.vf_offload_flags;
932 ad->num_queue_pairs = res.num_queue_pairs;
933 ad->max_vectors = res.max_vectors;
934 ad->max_mtu = res.max_mtu;
935 ad->rss_key_size = res.rss_key_size;
936 ad->rss_lut_size = res.rss_lut_size;
937 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
939 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
942 * Disable VLAN stripping
944 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
950 if (args->rxq_num == 0)
954 else if (args->rxq_num > ad->num_queue_pairs)
956 args->rxq_num = ad->num_queue_pairs;
957 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
958 "Using %u rx queues.", args->rxq_num);
961 for (i = 0; i < args->rxq_num; i++)
962 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
965 for (i = 0; i < tm->n_vlib_mains; i++)
966 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
969 if (ad->max_vectors > ad->n_rx_queues)
971 ad->flags |= AVF_DEVICE_F_RX_INT;
972 ad->n_rx_irqs = args->rxq_num;
978 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
979 (error = avf_op_config_rss_lut (vm, ad)))
982 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
983 (error = avf_op_config_rss_key (vm, ad)))
986 if ((error = avf_op_config_vsi_queues (vm, ad)))
989 if ((error = avf_op_config_irq_map (vm, ad)))
992 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
994 for (i = 0; i < ad->n_rx_irqs; i++)
995 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
996 AVF_IRQ_STATE_ENABLED);
998 if ((error = avf_op_add_eth_addr (vm, ad, 1, ad->hwaddr)))
1001 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1002 pow2_mask (ad->n_tx_queues))))
1005 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1010 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1012 avf_main_t *am = &avf_main;
1013 vnet_main_t *vnm = vnet_get_main ();
1014 virtchnl_pf_event_t *e;
1017 if (ad->flags & AVF_DEVICE_F_ERROR)
1020 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1023 ASSERT (ad->error == 0);
1025 /* do not process device in reset state */
1026 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1027 if (r != VIRTCHNL_VFR_VFACTIVE)
1030 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1031 if ((r & 0xf0000000) != (1ULL << 31))
1033 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1034 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1038 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1039 if ((r & 0xf0000000) != (1ULL << 31))
1041 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1042 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1047 avf_op_get_stats (vm, ad, &ad->eth_stats);
1050 vec_foreach (e, ad->events)
1052 avf_log_debug (ad, "event: %s (%u) sev %d",
1053 virtchnl_event_names[e->event], e->event, e->severity);
1054 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1057 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1061 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1062 link_up = e->event_data.link_event_adv.link_status;
1064 link_up = e->event_data.link_event.link_status;
1066 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1067 mbps = e->event_data.link_event_adv.link_speed;
1068 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1070 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1072 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1074 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1076 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1078 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1080 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1083 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1086 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1088 ad->flags |= AVF_DEVICE_F_LINK_UP;
1089 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1090 VNET_HW_INTERFACE_FLAG_LINK_UP);
1091 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1092 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1094 ad->link_speed = mbps;
1096 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1098 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1102 if (ad->flags & AVF_DEVICE_F_ELOG)
1104 ELOG_TYPE_DECLARE (el) =
1106 .format = "avf[%d] link change: link_status %d "
1107 "link_speed %d mbps",
1108 .format_args = "i4i1i4",
1116 ed = ELOG_DATA (&vm->elog_main, el);
1117 ed->dev_instance = ad->dev_instance;
1118 ed->link_status = link_up;
1119 ed->link_speed = mbps;
1124 if (ad->flags & AVF_DEVICE_F_ELOG)
1126 ELOG_TYPE_DECLARE (el) =
1128 .format = "avf[%d] unknown event: event %d severity %d",
1129 .format_args = "i4i4i1i1",
1137 ed = ELOG_DATA (&vm->elog_main, el);
1138 ed->dev_instance = ad->dev_instance;
1139 ed->event = e->event;
1140 ed->severity = e->severity;
1145 vec_reset_length (ad->events);
1150 ad->flags |= AVF_DEVICE_F_ERROR;
1151 ASSERT (ad->error != 0);
1152 vlib_log_err (am->log_class, "%U", format_clib_error, ad->error);
1156 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1158 vlib_main_t *vm = vlib_get_main ();
1159 avf_main_t *am = &avf_main;
1160 avf_device_t *ad = vec_elt_at_index (am->devices, hw->dev_instance);
1161 clib_error_t *error;
1166 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1167 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1169 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1170 ad->flags |= AVF_DEVICE_F_PROMISC;
1176 promisc_enabled = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1177 if ((error = avf_config_promisc_mode (vm, ad, promisc_enabled)))
1179 avf_log_err (ad, "%s: %U", format_clib_error, error);
1180 clib_error_free (error);
1188 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1190 avf_main_t *am = &avf_main;
1192 uword *event_data = 0, event_type;
1193 int enabled = 0, irq;
1194 f64 last_run_duration = 0;
1195 f64 last_periodic_time = 0;
1200 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1202 vlib_process_wait_for_event (vm);
1204 event_type = vlib_process_get_events (vm, &event_data);
1205 vec_reset_length (event_data);
1211 last_periodic_time = vlib_time_now (vm);
1213 case AVF_PROCESS_EVENT_START:
1216 case AVF_PROCESS_EVENT_STOP:
1219 case AVF_PROCESS_EVENT_AQ_INT:
1227 pool_foreach (ad, am->devices,
1229 avf_process_one_device (vm, ad, irq);
1232 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1238 VLIB_REGISTER_NODE (avf_process_node, static) = {
1239 .function = avf_process,
1240 .type = VLIB_NODE_TYPE_PROCESS,
1241 .name = "avf-process",
1246 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1248 avf_main_t *am = &avf_main;
1249 uword pd = vlib_pci_get_private_data (vm, h);
1250 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1253 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1255 if (ad->flags & AVF_DEVICE_F_ELOG)
1258 ELOG_TYPE_DECLARE (el) =
1260 .format = "avf[%d] irq 0: icr0 0x%x",
1261 .format_args = "i4i4",
1270 ed = ELOG_DATA (&vm->elog_main, el);
1271 ed->dev_instance = ad->dev_instance;
1275 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1277 /* bit 30 - Send/Receive Admin queue interrupt indication */
1278 if (icr0 & (1 << 30))
1279 vlib_process_signal_event (vm, avf_process_node.index,
1280 AVF_PROCESS_EVENT_AQ_INT, 0);
1284 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1286 vnet_main_t *vnm = vnet_get_main ();
1287 avf_main_t *am = &avf_main;
1288 uword pd = vlib_pci_get_private_data (vm, h);
1289 avf_device_t *ad = pool_elt_at_index (am->devices, pd);
1291 if (ad->flags & AVF_DEVICE_F_ELOG)
1294 ELOG_TYPE_DECLARE (el) =
1296 .format = "avf[%d] irq %d: received",
1297 .format_args = "i4i2",
1306 ed = ELOG_DATA (&vm->elog_main, el);
1307 ed->dev_instance = ad->dev_instance;
1313 if (ad->flags & AVF_DEVICE_F_RX_INT && ad->rxqs[line].int_mode)
1314 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, line);
1315 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1319 avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
1321 vnet_main_t *vnm = vnet_get_main ();
1322 avf_main_t *am = &avf_main;
1325 if (ad->hw_if_index)
1327 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1328 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1329 ethernet_delete_interface (vnm, ad->hw_if_index);
1332 vlib_pci_device_close (vm, ad->pci_dev_handle);
1334 vlib_physmem_free (vm, ad->atq);
1335 vlib_physmem_free (vm, ad->arq);
1336 vlib_physmem_free (vm, ad->atq_bufs);
1337 vlib_physmem_free (vm, ad->arq_bufs);
1340 vec_foreach_index (i, ad->rxqs)
1342 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1343 vlib_physmem_free (vm, (void *) rxq->descs);
1344 if (rxq->n_enqueued)
1345 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1347 vec_free (rxq->bufs);
1350 vec_free (ad->rxqs);
1353 vec_foreach_index (i, ad->txqs)
1355 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1356 vlib_physmem_free (vm, (void *) txq->descs);
1357 if (txq->n_enqueued)
1359 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1360 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1363 vec_free (txq->bufs);
1364 clib_ring_free (txq->rs_slots);
1367 vec_free (ad->txqs);
1368 vec_free (ad->name);
1370 clib_error_free (ad->error);
1371 clib_memset (ad, 0, sizeof (*ad));
1372 pool_put (am->devices, ad);
1376 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1378 vnet_main_t *vnm = vnet_get_main ();
1379 avf_main_t *am = &avf_main;
1381 vlib_pci_dev_handle_t h;
1382 clib_error_t *error = 0;
1385 /* check input args */
1386 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1387 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1389 if ((args->rxq_size & (args->rxq_size - 1))
1390 || (args->txq_size & (args->txq_size - 1)))
1392 args->rv = VNET_API_ERROR_INVALID_VALUE;
1394 clib_error_return (error, "queue size must be a power of two");
1398 pool_get (am->devices, ad);
1399 ad->dev_instance = ad - am->devices;
1400 ad->per_interface_next_index = ~0;
1401 ad->name = vec_dup (args->name);
1403 if (args->enable_elog)
1404 ad->flags |= AVF_DEVICE_F_ELOG;
1406 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1409 pool_put (am->devices, ad);
1410 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1412 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1416 ad->pci_dev_handle = h;
1417 ad->pci_addr = args->addr;
1418 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1420 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1422 if ((error = vlib_pci_bus_master_enable (vm, h)))
1425 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1428 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1430 CLIB_CACHE_LINE_BYTES,
1434 error = vlib_physmem_last_error (vm);
1438 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1441 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1443 CLIB_CACHE_LINE_BYTES,
1447 error = vlib_physmem_last_error (vm);
1451 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1454 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1456 CLIB_CACHE_LINE_BYTES,
1458 if (ad->atq_bufs == 0)
1460 error = vlib_physmem_last_error (vm);
1464 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1467 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1469 CLIB_CACHE_LINE_BYTES,
1471 if (ad->arq_bufs == 0)
1473 error = vlib_physmem_last_error (vm);
1477 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1480 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1481 ad->flags |= AVF_DEVICE_F_VA_DMA;
1483 if ((error = avf_device_init (vm, am, ad, args)))
1486 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1487 &avf_irq_0_handler)))
1490 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1491 &avf_irq_n_handler)))
1494 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1497 if ((error = vlib_pci_intr_enable (vm, h)))
1500 /* create interface */
1501 error = ethernet_register_interface (vnm, avf_device_class.index,
1502 ad->dev_instance, ad->hwaddr,
1503 &ad->hw_if_index, avf_flag_change);
1508 /* Indicate ability to support L3 DMAC filtering and
1509 * initialize interface to L3 non-promisc mode */
1510 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1511 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
1512 ethernet_set_flags (vnm, ad->hw_if_index,
1513 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1515 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1516 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1518 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1519 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1520 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1521 avf_input_node.index);
1523 for (i = 0; i < ad->n_rx_queues; i++)
1524 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1526 if (pool_elts (am->devices) == 1)
1527 vlib_process_signal_event (vm, avf_process_node.index,
1528 AVF_PROCESS_EVENT_START, 0);
1533 avf_delete_if (vm, ad);
1534 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1535 args->error = clib_error_return (error, "pci-addr %U",
1536 format_vlib_pci_addr, &args->addr);
1537 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1540 static clib_error_t *
1541 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1543 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1544 avf_main_t *am = &avf_main;
1545 avf_device_t *ad = vec_elt_at_index (am->devices, hi->dev_instance);
1546 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1548 if (ad->flags & AVF_DEVICE_F_ERROR)
1549 return clib_error_return (0, "device is in error state");
1553 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1554 VNET_HW_INTERFACE_FLAG_LINK_UP);
1555 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1559 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1560 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1565 static clib_error_t *
1566 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1567 vnet_hw_interface_rx_mode mode)
1569 avf_main_t *am = &avf_main;
1570 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1571 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1572 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1574 if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
1576 if (rxq->int_mode == 0)
1578 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1579 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1581 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1586 if (rxq->int_mode == 1)
1588 if (ad->n_rx_irqs != ad->n_rx_queues)
1589 return clib_error_return (0, "not enough interrupt lines");
1591 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1598 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1601 avf_main_t *am = &avf_main;
1602 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1603 avf_device_t *ad = pool_elt_at_index (am->devices, hw->dev_instance);
1605 /* Shut off redirection */
1606 if (node_index == ~0)
1608 ad->per_interface_next_index = node_index;
1612 ad->per_interface_next_index =
1613 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1616 static char *avf_tx_func_error_strings[] = {
1618 foreach_avf_tx_func_error
1623 avf_clear_hw_interface_counters (u32 instance)
1625 avf_main_t *am = &avf_main;
1626 avf_device_t *ad = vec_elt_at_index (am->devices, instance);
1627 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1628 &ad->eth_stats, sizeof (ad->eth_stats));
1632 VNET_DEVICE_CLASS (avf_device_class,) =
1634 .name = "Adaptive Virtual Function (AVF) interface",
1635 .clear_counters = avf_clear_hw_interface_counters,
1636 .format_device = format_avf_device,
1637 .format_device_name = format_avf_device_name,
1638 .admin_up_down_function = avf_interface_admin_up_down,
1639 .rx_mode_change_function = avf_interface_rx_mode_change,
1640 .rx_redirect_to_node = avf_set_interface_next_node,
1641 .tx_function_n_errors = AVF_TX_N_ERROR,
1642 .tx_function_error_strings = avf_tx_func_error_strings,
1647 avf_init (vlib_main_t * vm)
1649 avf_main_t *am = &avf_main;
1650 vlib_thread_main_t *tm = vlib_get_thread_main ();
1652 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1653 CLIB_CACHE_LINE_BYTES);
1655 am->log_class = vlib_log_register_class ("avf", 0);
1656 vlib_log_debug (am->log_class, "initialized");
1662 VLIB_INIT_FUNCTION (avf_init) =
1664 .runs_after = VLIB_INITS ("pci_bus_init"),
1669 * fd.io coding-style-patch-verification: ON
1672 * eval: (c-set-style "gnu")