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 VLIB_REGISTER_LOG_CLASS (avf_log) = {
44 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
46 static pci_device_id_t avf_pci_device_ids[] = {
47 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
48 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
49 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
53 const static char *virtchnl_event_names[] = {
54 #define _(v, n) [v] = #n,
55 foreach_virtchnl_event_code
61 AVF_IRQ_STATE_DISABLED,
62 AVF_IRQ_STATE_ENABLED,
63 AVF_IRQ_STATE_WB_ON_ITR,
67 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
69 u32 dyn_ctl0 = 0, icr0_ena = 0;
71 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
73 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
74 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
77 if (state == AVF_IRQ_STATE_DISABLED)
83 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
85 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
86 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
87 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
88 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
90 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
91 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
96 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
101 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
104 if (state == AVF_IRQ_STATE_DISABLED)
107 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
108 if (state == AVF_IRQ_STATE_WB_ON_ITR)
110 /* minimal ITR interval, use ITR1 */
111 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
112 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
113 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
117 /* configured ITR interval, use ITR0 */
118 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
119 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
122 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
128 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
131 clib_error_t *err = 0;
132 avf_aq_desc_t *d, dc;
133 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
135 d = &ad->atq[ad->atq_next_slot];
136 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
137 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
143 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
144 d->addr_hi = (u32) (pa >> 32);
145 d->addr_lo = (u32) pa;
146 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
148 d->flags |= AVF_AQ_F_BUF;
151 if (ad->flags & AVF_DEVICE_F_ELOG)
152 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
154 CLIB_MEMORY_BARRIER ();
155 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
156 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
159 t0 = vlib_time_now (vm);
161 vlib_process_suspend (vm, suspend_time);
163 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
165 f64 t = vlib_time_now (vm) - t0;
166 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
168 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
169 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
177 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
178 if (d->flags & AVF_AQ_F_ERR)
179 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
180 "%d]", d->opcode, d->retval);
183 if (ad->flags & AVF_DEVICE_F_ELOG)
186 ELOG_TYPE_DECLARE (el) =
188 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
189 "datalen %d retval %d",
190 .format_args = "i4i2i2i2i2i2",
201 ed = ELOG_DATA (&vm->elog_main, el);
202 ed->dev_instance = ad->dev_instance;
203 ed->s_flags = dc.flags;
204 ed->r_flags = d->flags;
205 ed->opcode = dc.opcode;
206 ed->datalen = dc.datalen;
207 ed->retval = d->retval;
215 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
219 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
220 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
222 if (ad->flags & AVF_DEVICE_F_ELOG)
225 ELOG_TYPE_DECLARE (el) =
227 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
228 .format_args = "i4i4i4",
236 ed = ELOG_DATA (&vm->elog_main, el);
237 ed->dev_instance = ad->dev_instance;
246 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
252 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
253 rxq = vec_elt_at_index (ad->rxqs, qid);
254 rxq->size = rxq_size;
256 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
257 sizeof (avf_rx_desc_t),
258 2 * CLIB_CACHE_LINE_BYTES,
261 rxq->buffer_pool_index =
262 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
265 return vlib_physmem_last_error (vm);
267 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
270 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
271 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
272 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
274 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
275 rxq->buffer_pool_index);
278 return clib_error_return (0, "buffer allocation error");
280 rxq->n_enqueued = n_alloc;
281 avf_rx_desc_t *d = rxq->descs;
282 for (i = 0; i < n_alloc; i++)
284 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
285 if (ad->flags & AVF_DEVICE_F_VA_DMA)
286 d->qword[0] = vlib_buffer_get_va (b);
288 d->qword[0] = vlib_buffer_get_pa (vm, b);
292 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
297 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
302 if (qid >= ad->num_queue_pairs)
304 qid = qid % ad->num_queue_pairs;
305 txq = vec_elt_at_index (ad->txqs, qid);
307 clib_spinlock_init (&txq->lock);
308 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
312 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
313 txq = vec_elt_at_index (ad->txqs, qid);
314 txq->size = txq_size;
316 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
317 sizeof (avf_tx_desc_t),
318 2 * CLIB_CACHE_LINE_BYTES,
321 return vlib_physmem_last_error (vm);
323 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
326 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
327 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
329 /* initialize ring of pending RS slots */
330 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
332 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
340 } virtchnl_promisc_info_t;
343 avf_arq_slot_init (avf_device_t * ad, u16 slot)
346 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
348 clib_memset (d, 0, sizeof (avf_aq_desc_t));
349 d->flags = AVF_AQ_F_BUF;
350 d->datalen = AVF_MBOX_BUF_SZ;
351 d->addr_hi = (u32) (pa >> 32);
352 d->addr_lo = (u32) pa;
356 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
358 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
359 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
363 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
368 /* VF MailBox Transmit */
369 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
370 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
372 pa = avf_dma_addr (vm, ad, ad->atq);
373 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
374 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
375 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
376 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
377 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
379 /* VF MailBox Receive */
380 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
381 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
383 for (i = 0; i < AVF_MBOX_LEN; i++)
384 avf_arq_slot_init (ad, i);
386 pa = avf_dma_addr (vm, ad, ad->arq);
388 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
389 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
390 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
391 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
392 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
393 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
395 ad->atq_next_slot = 0;
396 ad->arq_next_slot = 0;
400 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
401 void *in, int in_len, void *out, int out_len)
404 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
406 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
408 /* adminq operations should be only done from process node after device
410 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
411 vlib_get_current_process_node_index (vm) == avf_process_node.index);
413 /* suppress interrupt in the next adminq receive slot
414 as we are going to wait for response
415 we only need interrupts when event is received */
416 d = &ad->arq[ad->arq_next_slot];
417 d->flags |= AVF_AQ_F_SI;
419 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
422 t0 = vlib_time_now (vm);
424 head = avf_get_u32 (ad->bar0, AVF_ARQH);
426 if (ad->arq_next_slot == head)
428 f64 t = vlib_time_now (vm) - t0;
429 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
431 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
432 return clib_error_return (0, "timeout");
434 vlib_process_suspend (vm, suspend_time);
439 d = &ad->arq[ad->arq_next_slot];
441 if (d->v_opcode == VIRTCHNL_OP_EVENT)
443 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
444 virtchnl_pf_event_t *e;
446 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
447 ((d->flags & AVF_AQ_F_BUF) == 0))
448 return clib_error_return (0, "event message error");
450 vec_add2 (ad->events, e, 1);
451 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
452 avf_arq_slot_init (ad, ad->arq_next_slot);
455 t0 = vlib_time_now (vm);
456 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
460 if (d->v_opcode != op)
463 clib_error_return (0,
464 "unexpected message receiver [v_opcode = %u, "
465 "expected %u, v_retval %d]", d->v_opcode, op,
472 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
473 d->v_opcode, d->v_retval);
477 if (d->flags & AVF_AQ_F_BUF)
479 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
480 clib_memcpy_fast (out, buf, out_len);
483 avf_arq_slot_init (ad, ad->arq_next_slot);
484 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
486 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
490 if (ad->flags & AVF_DEVICE_F_ELOG)
493 ELOG_TYPE_DECLARE (el) =
495 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
496 .format_args = "i4t4i4i4",
497 .n_enum_strings = VIRTCHNL_N_OPS,
499 #define _(v, n) [v] = #n,
511 ed = ELOG_DATA (&vm->elog_main, el);
512 ed->dev_instance = ad->dev_instance;
514 ed->v_opcode_val = op;
515 ed->v_retval = d->v_retval;
522 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
523 virtchnl_version_info_t * ver)
525 clib_error_t *err = 0;
526 virtchnl_version_info_t myver = {
527 .major = VIRTCHNL_VERSION_MAJOR,
528 .minor = VIRTCHNL_VERSION_MINOR,
531 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
533 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
534 sizeof (virtchnl_version_info_t), ver,
535 sizeof (virtchnl_version_info_t));
544 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
545 virtchnl_vf_resource_t * res)
547 clib_error_t *err = 0;
548 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
549 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
550 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
551 VIRTCHNL_VF_CAP_ADV_LINK_SPEED);
553 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
554 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
555 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
560 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
561 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
562 "rss_key_size %u rss_lut_size %u",
563 res->num_vsis, res->num_queue_pairs, res->max_vectors,
564 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
566 for (i = 0; i < res->num_vsis; i++)
567 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
568 "num_queue_pairs %u vsi_type %u qset_handle %u "
569 "default_mac_addr %U", i,
570 res->vsi_res[i].vsi_id,
571 res->vsi_res[i].num_queue_pairs,
572 res->vsi_res[i].vsi_type,
573 res->vsi_res[i].qset_handle,
574 format_ethernet_address,
575 res->vsi_res[i].default_mac_addr);
582 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
584 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
587 virtchnl_rss_lut_t *rl;
589 clib_memset (msg, 0, msg_len);
590 rl = (virtchnl_rss_lut_t *) msg;
591 rl->vsi_id = ad->vsi_id;
592 rl->lut_entries = ad->rss_lut_size;
593 for (i = 0; i < ad->rss_lut_size; i++)
594 rl->lut[i] = i % ad->n_rx_queues;
596 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
597 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
598 rl->lut, rl->lut_entries);
600 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
605 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
607 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
610 virtchnl_rss_key_t *rk;
612 clib_memset (msg, 0, msg_len);
613 rk = (virtchnl_rss_key_t *) msg;
614 rk->vsi_id = ad->vsi_id;
615 rk->key_len = ad->rss_key_size;
616 u32 seed = random_default_seed ();
617 for (i = 0; i < ad->rss_key_size; i++)
618 rk->key[i] = (u8) random_u32 (&seed);
620 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
621 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
624 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
629 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
631 avf_log_debug (ad, "disable_vlan_stripping");
633 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
638 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
641 virtchnl_promisc_info_t pi = { 0 };
643 pi.vsi_id = ad->vsi_id;
646 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
648 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
649 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
650 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
652 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
653 sizeof (virtchnl_promisc_info_t), 0, 0);
658 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
661 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
662 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
663 sizeof (virtchnl_queue_pair_info_t);
665 virtchnl_vsi_queue_config_info_t *ci;
667 clib_memset (msg, 0, msg_len);
668 ci = (virtchnl_vsi_queue_config_info_t *) msg;
669 ci->vsi_id = ad->vsi_id;
670 ci->num_queue_pairs = n_qp;
672 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
673 ad->vsi_id, ci->num_queue_pairs);
675 for (i = 0; i < n_qp; i++)
677 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
678 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
680 rxq->vsi_id = ad->vsi_id;
682 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
683 if (i < vec_len (ad->rxqs))
685 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
686 rxq->ring_len = q->size;
687 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
688 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
689 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
691 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
692 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
693 i, rxq->max_pkt_size, rxq->ring_len,
694 rxq->databuffer_size, rxq->dma_ring_addr);
696 txq->vsi_id = ad->vsi_id;
698 if (i < vec_len (ad->txqs))
700 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
701 txq->ring_len = q->size;
702 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
704 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
705 "dma_ring_addr 0x%llx", i, txq->ring_len,
709 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
714 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
716 int msg_len = sizeof (virtchnl_irq_map_info_t) +
717 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
719 virtchnl_irq_map_info_t *imi;
721 clib_memset (msg, 0, msg_len);
722 imi = (virtchnl_irq_map_info_t *) msg;
723 imi->num_vectors = ad->n_rx_irqs;
725 for (int i = 0; i < ad->n_rx_irqs; i++)
727 imi->vecmap[i].vector_id = i + 1;
728 imi->vecmap[i].vsi_id = ad->vsi_id;
729 if (ad->n_rx_irqs == ad->n_rx_queues)
730 imi->vecmap[i].rxq_map = 1 << i;
732 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
734 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
735 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
736 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
740 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
745 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
746 u8 * macs, int is_add)
749 sizeof (virtchnl_ether_addr_list_t) +
750 count * sizeof (virtchnl_ether_addr_t);
752 virtchnl_ether_addr_list_t *al;
755 clib_memset (msg, 0, msg_len);
756 al = (virtchnl_ether_addr_list_t *) msg;
757 al->vsi_id = ad->vsi_id;
758 al->num_elements = count;
760 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
761 ad->vsi_id, al->num_elements, is_add);
763 for (i = 0; i < count; i++)
765 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
766 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
767 format_ethernet_address, &al->list[i].addr);
769 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
770 VIRTCHNL_OP_ADD_ETH_ADDR, msg, msg_len, 0, 0);
774 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
776 virtchnl_queue_select_t qs = { 0 };
778 qs.vsi_id = ad->vsi_id;
782 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
783 ad->vsi_id, qs.rx_queues, qs.tx_queues);
789 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
790 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
795 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
796 sizeof (virtchnl_queue_select_t), 0, 0);
800 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
801 virtchnl_eth_stats_t * es)
803 virtchnl_queue_select_t qs = { 0 };
804 qs.vsi_id = ad->vsi_id;
806 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
808 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
809 &qs, sizeof (virtchnl_queue_select_t),
810 es, sizeof (virtchnl_eth_stats_t));
814 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
816 avf_aq_desc_t d = { 0 };
819 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
821 avf_log_debug (ad, "reset");
824 d.v_opcode = VIRTCHNL_OP_RESET_VF;
825 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
828 t0 = vlib_time_now (vm);
830 vlib_process_suspend (vm, suspend_time);
832 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
834 if (rstat == 2 || rstat == 3)
836 avf_log_debug (ad, "reset completed in %.3fs", t);
840 t = vlib_time_now (vm) - t0;
841 if (t > AVF_RESET_MAX_WAIT_TIME)
843 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
844 return clib_error_return (0, "reset failed (timeout)");
852 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
854 virtchnl_vf_res_request_t res_req = { 0 };
857 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
859 res_req.num_queue_pairs = num_queue_pairs;
861 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
863 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
864 sizeof (virtchnl_vf_res_request_t), &res_req,
865 sizeof (virtchnl_vf_res_request_t));
868 * if PF responds, the request failed
869 * else PF initializes restart and avf_send_to_pf returns an error
873 return clib_error_return (0, "requested more than %u queue pairs",
874 res_req.num_queue_pairs);
877 t0 = vlib_time_now (vm);
879 vlib_process_suspend (vm, suspend_time);
880 t = vlib_time_now (vm) - t0;
882 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
884 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
887 if (t > AVF_RESET_MAX_WAIT_TIME)
889 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
890 return clib_error_return (0, "request queues failed (timeout)");
901 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
902 avf_create_if_args_t * args)
904 virtchnl_version_info_t ver = { 0 };
905 virtchnl_vf_resource_t res = { 0 };
907 vlib_thread_main_t *tm = vlib_get_thread_main ();
910 avf_adminq_init (vm, ad);
912 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
915 /* we failed to get more queues, but still we want to proceed */
916 clib_error_free (error);
918 if ((error = avf_device_reset (vm, ad)))
922 avf_adminq_init (vm, ad);
927 if ((error = avf_op_version (vm, ad, &ver)))
930 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
931 ver.minor != VIRTCHNL_VERSION_MINOR)
932 return clib_error_return (0, "incompatible protocol version "
933 "(remote %d.%d)", ver.major, ver.minor);
936 * OP_GET_VF_RESOURCES
938 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
941 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
942 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
944 ad->vsi_id = res.vsi_res[0].vsi_id;
945 ad->feature_bitmap = res.vf_offload_flags;
946 ad->num_queue_pairs = res.num_queue_pairs;
947 ad->max_vectors = res.max_vectors;
948 ad->max_mtu = res.max_mtu;
949 ad->rss_key_size = res.rss_key_size;
950 ad->rss_lut_size = res.rss_lut_size;
951 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
953 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
956 * Disable VLAN stripping
958 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
964 if (args->rxq_num == 0)
968 else if (args->rxq_num > ad->num_queue_pairs)
970 args->rxq_num = ad->num_queue_pairs;
971 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
972 "Using %u rx queues.", args->rxq_num);
975 for (i = 0; i < args->rxq_num; i++)
976 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
979 for (i = 0; i < tm->n_vlib_mains; i++)
980 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
983 if (ad->max_vectors > ad->n_rx_queues)
985 ad->flags |= AVF_DEVICE_F_RX_INT;
986 ad->n_rx_irqs = args->rxq_num;
992 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
993 (error = avf_op_config_rss_lut (vm, ad)))
996 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
997 (error = avf_op_config_rss_key (vm, ad)))
1000 if ((error = avf_op_config_vsi_queues (vm, ad)))
1003 if ((error = avf_op_config_irq_map (vm, ad)))
1006 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1008 for (i = 0; i < ad->n_rx_irqs; i++)
1009 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1010 AVF_IRQ_STATE_ENABLED);
1012 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1015 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1016 pow2_mask (ad->n_tx_queues))))
1019 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1024 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1026 vnet_main_t *vnm = vnet_get_main ();
1027 virtchnl_pf_event_t *e;
1030 if (ad->flags & AVF_DEVICE_F_ERROR)
1033 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1036 ASSERT (ad->error == 0);
1038 /* do not process device in reset state */
1039 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1040 if (r != VIRTCHNL_VFR_VFACTIVE)
1043 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1044 if ((r & 0xf0000000) != (1ULL << 31))
1046 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1047 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1051 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1052 if ((r & 0xf0000000) != (1ULL << 31))
1054 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1055 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1060 avf_op_get_stats (vm, ad, &ad->eth_stats);
1063 vec_foreach (e, ad->events)
1065 avf_log_debug (ad, "event: %s (%u) sev %d",
1066 virtchnl_event_names[e->event], e->event, e->severity);
1067 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1070 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1074 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1075 link_up = e->event_data.link_event_adv.link_status;
1077 link_up = e->event_data.link_event.link_status;
1079 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1080 mbps = e->event_data.link_event_adv.link_speed;
1081 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1083 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1085 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1087 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1089 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1091 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1093 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1096 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1099 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1101 ad->flags |= AVF_DEVICE_F_LINK_UP;
1102 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1103 VNET_HW_INTERFACE_FLAG_LINK_UP);
1104 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1105 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1107 ad->link_speed = mbps;
1109 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1111 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1115 if (ad->flags & AVF_DEVICE_F_ELOG)
1117 ELOG_TYPE_DECLARE (el) =
1119 .format = "avf[%d] link change: link_status %d "
1120 "link_speed %d mbps",
1121 .format_args = "i4i1i4",
1129 ed = ELOG_DATA (&vm->elog_main, el);
1130 ed->dev_instance = ad->dev_instance;
1131 ed->link_status = link_up;
1132 ed->link_speed = mbps;
1137 if (ad->flags & AVF_DEVICE_F_ELOG)
1139 ELOG_TYPE_DECLARE (el) =
1141 .format = "avf[%d] unknown event: event %d severity %d",
1142 .format_args = "i4i4i1i1",
1150 ed = ELOG_DATA (&vm->elog_main, el);
1151 ed->dev_instance = ad->dev_instance;
1152 ed->event = e->event;
1153 ed->severity = e->severity;
1158 vec_reset_length (ad->events);
1163 ad->flags |= AVF_DEVICE_F_ERROR;
1164 ASSERT (ad->error != 0);
1165 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1169 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1171 avf_device_t *ad = avf_get_device (req->dev_instance);
1173 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1174 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1176 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1177 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1179 clib_panic ("BUG: unknown avf proceess request type");
1181 if (req->calling_process_index != avf_process_node.index)
1182 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1185 static clib_error_t *
1186 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1188 uword *event_data = 0;
1189 req->calling_process_index = vlib_get_current_process_node_index (vm);
1191 if (req->calling_process_index != avf_process_node.index)
1193 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1194 AVF_PROCESS_EVENT_REQ, req);
1196 vlib_process_wait_for_event_or_clock (vm, 5.0);
1198 if (vlib_process_get_events (vm, &event_data) != 0)
1199 clib_panic ("avf process node failed to reply in 5 seconds");
1200 vec_free (event_data);
1203 avf_process_handle_request (vm, req);
1209 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1211 avf_process_req_t req;
1212 vlib_main_t *vm = vlib_get_main ();
1213 avf_device_t *ad = avf_get_device (hw->dev_instance);
1218 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1219 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1221 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1222 ad->flags |= AVF_DEVICE_F_PROMISC;
1228 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1229 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1230 req.dev_instance = hw->dev_instance;
1232 if ((err = avf_process_request (vm, &req)))
1234 avf_log_err (ad, "error: %U", format_clib_error, err);
1235 clib_error_free (err);
1242 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1244 avf_main_t *am = &avf_main;
1245 uword *event_data = 0, event_type;
1246 int enabled = 0, irq;
1247 f64 last_run_duration = 0;
1248 f64 last_periodic_time = 0;
1249 avf_device_t **dev_pointers = 0;
1255 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1257 vlib_process_wait_for_event (vm);
1259 event_type = vlib_process_get_events (vm, &event_data);
1265 last_periodic_time = vlib_time_now (vm);
1267 case AVF_PROCESS_EVENT_START:
1270 case AVF_PROCESS_EVENT_DELETE_IF:
1271 for (int i = 0; i < vec_len (event_data); i++)
1273 avf_device_t *ad = avf_get_device (event_data[i]);
1274 avf_delete_if (vm, ad, /* with_barrier */ 1);
1276 if (pool_elts (am->devices) < 1)
1279 case AVF_PROCESS_EVENT_AQ_INT:
1282 case AVF_PROCESS_EVENT_REQ:
1283 for (int i = 0; i < vec_len (event_data); i++)
1284 avf_process_handle_request (vm, (void *) event_data[i]);
1291 vec_reset_length (event_data);
1296 /* create local list of device pointers as device pool may grow
1298 vec_reset_length (dev_pointers);
1300 pool_foreach_index (i, am->devices,
1302 vec_add1 (dev_pointers, avf_get_device (i));
1305 vec_foreach_index (i, dev_pointers)
1307 avf_process_one_device (vm, dev_pointers[i], irq);
1310 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1316 VLIB_REGISTER_NODE (avf_process_node) = {
1317 .function = avf_process,
1318 .type = VLIB_NODE_TYPE_PROCESS,
1319 .name = "avf-process",
1324 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1326 uword pd = vlib_pci_get_private_data (vm, h);
1327 avf_device_t *ad = avf_get_device (pd);
1330 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1332 if (ad->flags & AVF_DEVICE_F_ELOG)
1335 ELOG_TYPE_DECLARE (el) =
1337 .format = "avf[%d] irq 0: icr0 0x%x",
1338 .format_args = "i4i4",
1347 ed = ELOG_DATA (&vm->elog_main, el);
1348 ed->dev_instance = ad->dev_instance;
1352 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1354 /* bit 30 - Send/Receive Admin queue interrupt indication */
1355 if (icr0 & (1 << 30))
1356 vlib_process_signal_event (vm, avf_process_node.index,
1357 AVF_PROCESS_EVENT_AQ_INT, 0);
1361 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1363 vnet_main_t *vnm = vnet_get_main ();
1364 uword pd = vlib_pci_get_private_data (vm, h);
1365 avf_device_t *ad = avf_get_device (pd);
1367 if (ad->flags & AVF_DEVICE_F_ELOG)
1370 ELOG_TYPE_DECLARE (el) =
1372 .format = "avf[%d] irq %d: received",
1373 .format_args = "i4i2",
1382 ed = ELOG_DATA (&vm->elog_main, el);
1383 ed->dev_instance = ad->dev_instance;
1389 if (ad->flags & AVF_DEVICE_F_RX_INT && ad->rxqs[line].int_mode)
1390 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, line);
1391 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1395 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1397 vnet_main_t *vnm = vnet_get_main ();
1398 avf_main_t *am = &avf_main;
1401 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1403 if (ad->hw_if_index)
1406 vlib_worker_thread_barrier_sync (vm);
1407 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1408 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1409 ethernet_delete_interface (vnm, ad->hw_if_index);
1411 vlib_worker_thread_barrier_release (vm);
1414 vlib_pci_device_close (vm, ad->pci_dev_handle);
1416 vlib_physmem_free (vm, ad->atq);
1417 vlib_physmem_free (vm, ad->arq);
1418 vlib_physmem_free (vm, ad->atq_bufs);
1419 vlib_physmem_free (vm, ad->arq_bufs);
1422 vec_foreach_index (i, ad->rxqs)
1424 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1425 vlib_physmem_free (vm, (void *) rxq->descs);
1426 if (rxq->n_enqueued)
1427 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1429 vec_free (rxq->bufs);
1432 vec_free (ad->rxqs);
1435 vec_foreach_index (i, ad->txqs)
1437 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1438 vlib_physmem_free (vm, (void *) txq->descs);
1439 if (txq->n_enqueued)
1441 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1442 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1445 vec_free (txq->bufs);
1446 clib_ring_free (txq->rs_slots);
1449 vec_free (ad->txqs);
1450 vec_free (ad->name);
1452 clib_error_free (ad->error);
1453 clib_memset (ad, 0, sizeof (*ad));
1454 pool_put_index (am->devices, ad->dev_instance);
1459 avf_validate_queue_size (avf_create_if_args_t * args)
1461 clib_error_t *error = 0;
1463 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1464 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1466 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1467 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1469 args->rv = VNET_API_ERROR_INVALID_VALUE;
1471 clib_error_return (error, "queue size must not be greater than %u",
1475 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1476 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1478 args->rv = VNET_API_ERROR_INVALID_VALUE;
1480 clib_error_return (error, "queue size must not be smaller than %u",
1484 if ((args->rxq_size & (args->rxq_size - 1)) ||
1485 (args->txq_size & (args->txq_size - 1)))
1487 args->rv = VNET_API_ERROR_INVALID_VALUE;
1489 clib_error_return (error, "queue size must be a power of two");
1496 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1498 vnet_main_t *vnm = vnet_get_main ();
1499 avf_main_t *am = &avf_main;
1500 avf_device_t *ad, **adp;
1501 vlib_pci_dev_handle_t h;
1502 clib_error_t *error = 0;
1505 /* check input args */
1506 if (avf_validate_queue_size (args) != 0)
1510 pool_foreach (adp, am->devices, ({
1511 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1513 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1515 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1516 &args->addr, "pci address in use");
1522 pool_get (am->devices, adp);
1523 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1524 CLIB_CACHE_LINE_BYTES);
1525 clib_memset (ad, 0, sizeof (avf_device_t));
1526 ad->dev_instance = adp - am->devices;
1527 ad->per_interface_next_index = ~0;
1528 ad->name = vec_dup (args->name);
1530 if (args->enable_elog)
1531 ad->flags |= AVF_DEVICE_F_ELOG;
1533 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1536 pool_put (am->devices, adp);
1538 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1540 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1544 ad->pci_dev_handle = h;
1545 ad->pci_addr = args->addr;
1546 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1548 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1550 if ((error = vlib_pci_bus_master_enable (vm, h)))
1553 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1556 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1558 CLIB_CACHE_LINE_BYTES,
1562 error = vlib_physmem_last_error (vm);
1566 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1569 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1571 CLIB_CACHE_LINE_BYTES,
1575 error = vlib_physmem_last_error (vm);
1579 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1582 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1584 CLIB_CACHE_LINE_BYTES,
1586 if (ad->atq_bufs == 0)
1588 error = vlib_physmem_last_error (vm);
1592 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1595 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1597 CLIB_CACHE_LINE_BYTES,
1599 if (ad->arq_bufs == 0)
1601 error = vlib_physmem_last_error (vm);
1605 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1608 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1609 ad->flags |= AVF_DEVICE_F_VA_DMA;
1611 if ((error = avf_device_init (vm, am, ad, args)))
1614 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1615 &avf_irq_0_handler)))
1618 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1619 &avf_irq_n_handler)))
1622 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1625 if ((error = vlib_pci_intr_enable (vm, h)))
1628 /* create interface */
1629 error = ethernet_register_interface (vnm, avf_device_class.index,
1630 ad->dev_instance, ad->hwaddr,
1631 &ad->hw_if_index, avf_flag_change);
1636 /* Indicate ability to support L3 DMAC filtering and
1637 * initialize interface to L3 non-promisc mode */
1638 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1639 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
1640 ethernet_set_flags (vnm, ad->hw_if_index,
1641 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1643 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1644 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1646 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1647 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1648 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1649 avf_input_node.index);
1651 for (i = 0; i < ad->n_rx_queues; i++)
1652 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1654 if (pool_elts (am->devices) == 1)
1655 vlib_process_signal_event (vm, avf_process_node.index,
1656 AVF_PROCESS_EVENT_START, 0);
1661 avf_delete_if (vm, ad, /* with_barrier */ 0);
1662 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1663 args->error = clib_error_return (error, "pci-addr %U",
1664 format_vlib_pci_addr, &args->addr);
1665 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1668 static clib_error_t *
1669 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1671 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1672 avf_device_t *ad = avf_get_device (hi->dev_instance);
1673 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1675 if (ad->flags & AVF_DEVICE_F_ERROR)
1676 return clib_error_return (0, "device is in error state");
1680 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1681 VNET_HW_INTERFACE_FLAG_LINK_UP);
1682 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1686 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1687 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1692 static clib_error_t *
1693 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1694 vnet_hw_if_rx_mode mode)
1696 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1697 avf_device_t *ad = avf_get_device (hw->dev_instance);
1698 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1700 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1702 if (rxq->int_mode == 0)
1704 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1705 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1707 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1712 if (rxq->int_mode == 1)
1714 if (ad->n_rx_irqs != ad->n_rx_queues)
1715 return clib_error_return (0, "not enough interrupt lines");
1717 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1724 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1727 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1728 avf_device_t *ad = avf_get_device (hw->dev_instance);
1730 /* Shut off redirection */
1731 if (node_index == ~0)
1733 ad->per_interface_next_index = node_index;
1737 ad->per_interface_next_index =
1738 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1741 static clib_error_t *
1742 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1743 const u8 * address, u8 is_add)
1745 vlib_main_t *vm = vlib_get_main ();
1746 avf_process_req_t req;
1748 req.dev_instance = hw->dev_instance;
1749 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1750 req.is_add = is_add;
1751 clib_memcpy (req.eth_addr, address, 6);
1753 return avf_process_request (vm, &req);
1756 static char *avf_tx_func_error_strings[] = {
1758 foreach_avf_tx_func_error
1763 avf_clear_hw_interface_counters (u32 instance)
1765 avf_device_t *ad = avf_get_device (instance);
1766 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1767 &ad->eth_stats, sizeof (ad->eth_stats));
1771 VNET_DEVICE_CLASS (avf_device_class,) =
1773 .name = "Adaptive Virtual Function (AVF) interface",
1774 .clear_counters = avf_clear_hw_interface_counters,
1775 .format_device = format_avf_device,
1776 .format_device_name = format_avf_device_name,
1777 .admin_up_down_function = avf_interface_admin_up_down,
1778 .rx_mode_change_function = avf_interface_rx_mode_change,
1779 .rx_redirect_to_node = avf_set_interface_next_node,
1780 .mac_addr_add_del_function = avf_add_del_mac_address,
1781 .tx_function_n_errors = AVF_TX_N_ERROR,
1782 .tx_function_error_strings = avf_tx_func_error_strings,
1787 avf_init (vlib_main_t * vm)
1789 avf_main_t *am = &avf_main;
1790 vlib_thread_main_t *tm = vlib_get_thread_main ();
1792 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1793 CLIB_CACHE_LINE_BYTES);
1799 VLIB_INIT_FUNCTION (avf_init) =
1801 .runs_after = VLIB_INITS ("pci_bus_init"),
1806 * fd.io coding-style-patch-verification: ON
1809 * eval: (c-set-style "gnu")