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)
301 u8 bpi = vlib_buffer_pool_get_default_for_numa (vm,
304 if (qid >= ad->num_queue_pairs)
306 qid = qid % ad->num_queue_pairs;
307 txq = vec_elt_at_index (ad->txqs, qid);
309 clib_spinlock_init (&txq->lock);
310 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
314 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
315 txq = vec_elt_at_index (ad->txqs, qid);
316 txq->size = txq_size;
319 /* Prepare a placeholder buffer to maintain a 1-1
320 relationship between bufs and descs when a context
321 descriptor is added in descs */
322 if (!vlib_buffer_alloc_from_pool
323 (vm, &txq->ctx_desc_placeholder_bi, 1, bpi))
324 return clib_error_return (0, "buffer allocation error");
326 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
327 sizeof (avf_tx_desc_t),
328 2 * CLIB_CACHE_LINE_BYTES,
331 return vlib_physmem_last_error (vm);
333 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
336 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
337 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
339 /* initialize ring of pending RS slots */
340 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
342 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
350 } virtchnl_promisc_info_t;
353 avf_arq_slot_init (avf_device_t * ad, u16 slot)
356 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
358 clib_memset (d, 0, sizeof (avf_aq_desc_t));
359 d->flags = AVF_AQ_F_BUF;
360 d->datalen = AVF_MBOX_BUF_SZ;
361 d->addr_hi = (u32) (pa >> 32);
362 d->addr_lo = (u32) pa;
366 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
368 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
369 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
373 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
378 /* VF MailBox Transmit */
379 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
380 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
382 pa = avf_dma_addr (vm, ad, ad->atq);
383 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
384 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
385 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
386 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
387 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
389 /* VF MailBox Receive */
390 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
391 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
393 for (i = 0; i < AVF_MBOX_LEN; i++)
394 avf_arq_slot_init (ad, i);
396 pa = avf_dma_addr (vm, ad, ad->arq);
398 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
399 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
400 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
401 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
402 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
403 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
405 ad->atq_next_slot = 0;
406 ad->arq_next_slot = 0;
410 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
411 void *in, int in_len, void *out, int out_len)
414 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
416 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
418 /* adminq operations should be only done from process node after device
420 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
421 vlib_get_current_process_node_index (vm) == avf_process_node.index);
423 /* suppress interrupt in the next adminq receive slot
424 as we are going to wait for response
425 we only need interrupts when event is received */
426 d = &ad->arq[ad->arq_next_slot];
427 d->flags |= AVF_AQ_F_SI;
429 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
432 t0 = vlib_time_now (vm);
434 head = avf_get_u32 (ad->bar0, AVF_ARQH);
436 if (ad->arq_next_slot == head)
438 f64 t = vlib_time_now (vm) - t0;
439 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
441 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
442 return clib_error_return (0, "timeout");
444 vlib_process_suspend (vm, suspend_time);
449 d = &ad->arq[ad->arq_next_slot];
451 if (d->v_opcode == VIRTCHNL_OP_EVENT)
453 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
454 virtchnl_pf_event_t *e;
456 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
457 ((d->flags & AVF_AQ_F_BUF) == 0))
458 return clib_error_return (0, "event message error");
460 vec_add2 (ad->events, e, 1);
461 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
462 avf_arq_slot_init (ad, ad->arq_next_slot);
465 t0 = vlib_time_now (vm);
466 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
470 if (d->v_opcode != op)
473 clib_error_return (0,
474 "unexpected message receiver [v_opcode = %u, "
475 "expected %u, v_retval %d]", d->v_opcode, op,
482 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
483 d->v_opcode, d->v_retval);
487 if (d->flags & AVF_AQ_F_BUF)
489 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
490 clib_memcpy_fast (out, buf, out_len);
493 avf_arq_slot_init (ad, ad->arq_next_slot);
494 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
496 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
500 if (ad->flags & AVF_DEVICE_F_ELOG)
503 ELOG_TYPE_DECLARE (el) =
505 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
506 .format_args = "i4t4i4i4",
507 .n_enum_strings = VIRTCHNL_N_OPS,
509 #define _(v, n) [v] = #n,
521 ed = ELOG_DATA (&vm->elog_main, el);
522 ed->dev_instance = ad->dev_instance;
524 ed->v_opcode_val = op;
525 ed->v_retval = d->v_retval;
532 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
533 virtchnl_version_info_t * ver)
535 clib_error_t *err = 0;
536 virtchnl_version_info_t myver = {
537 .major = VIRTCHNL_VERSION_MAJOR,
538 .minor = VIRTCHNL_VERSION_MINOR,
541 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
543 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
544 sizeof (virtchnl_version_info_t), ver,
545 sizeof (virtchnl_version_info_t));
554 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
555 virtchnl_vf_resource_t * res)
557 clib_error_t *err = 0;
558 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
559 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
560 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
561 VIRTCHNL_VF_CAP_ADV_LINK_SPEED);
563 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
564 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
565 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
570 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
571 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
572 "rss_key_size %u rss_lut_size %u",
573 res->num_vsis, res->num_queue_pairs, res->max_vectors,
574 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
576 for (i = 0; i < res->num_vsis; i++)
577 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
578 "num_queue_pairs %u vsi_type %u qset_handle %u "
579 "default_mac_addr %U", i,
580 res->vsi_res[i].vsi_id,
581 res->vsi_res[i].num_queue_pairs,
582 res->vsi_res[i].vsi_type,
583 res->vsi_res[i].qset_handle,
584 format_ethernet_address,
585 res->vsi_res[i].default_mac_addr);
592 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
594 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
597 virtchnl_rss_lut_t *rl;
599 clib_memset (msg, 0, msg_len);
600 rl = (virtchnl_rss_lut_t *) msg;
601 rl->vsi_id = ad->vsi_id;
602 rl->lut_entries = ad->rss_lut_size;
603 for (i = 0; i < ad->rss_lut_size; i++)
604 rl->lut[i] = i % ad->n_rx_queues;
606 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
607 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
608 rl->lut, rl->lut_entries);
610 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
615 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
617 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
620 virtchnl_rss_key_t *rk;
622 clib_memset (msg, 0, msg_len);
623 rk = (virtchnl_rss_key_t *) msg;
624 rk->vsi_id = ad->vsi_id;
625 rk->key_len = ad->rss_key_size;
626 u32 seed = random_default_seed ();
627 for (i = 0; i < ad->rss_key_size; i++)
628 rk->key[i] = (u8) random_u32 (&seed);
630 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
631 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
634 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
639 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
641 avf_log_debug (ad, "disable_vlan_stripping");
643 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
648 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
651 virtchnl_promisc_info_t pi = { 0 };
653 pi.vsi_id = ad->vsi_id;
656 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
658 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
659 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
660 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
662 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
663 sizeof (virtchnl_promisc_info_t), 0, 0);
668 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
671 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
672 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
673 sizeof (virtchnl_queue_pair_info_t);
675 virtchnl_vsi_queue_config_info_t *ci;
677 clib_memset (msg, 0, msg_len);
678 ci = (virtchnl_vsi_queue_config_info_t *) msg;
679 ci->vsi_id = ad->vsi_id;
680 ci->num_queue_pairs = n_qp;
682 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
683 ad->vsi_id, ci->num_queue_pairs);
685 for (i = 0; i < n_qp; i++)
687 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
688 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
690 rxq->vsi_id = ad->vsi_id;
692 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
693 if (i < vec_len (ad->rxqs))
695 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
696 rxq->ring_len = q->size;
697 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
698 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
699 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
701 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
702 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
703 i, rxq->max_pkt_size, rxq->ring_len,
704 rxq->databuffer_size, rxq->dma_ring_addr);
706 txq->vsi_id = ad->vsi_id;
708 if (i < vec_len (ad->txqs))
710 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
711 txq->ring_len = q->size;
712 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
714 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
715 "dma_ring_addr 0x%llx", i, txq->ring_len,
719 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
724 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
726 int msg_len = sizeof (virtchnl_irq_map_info_t) +
727 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
729 virtchnl_irq_map_info_t *imi;
731 clib_memset (msg, 0, msg_len);
732 imi = (virtchnl_irq_map_info_t *) msg;
733 imi->num_vectors = ad->n_rx_irqs;
735 for (int i = 0; i < ad->n_rx_irqs; i++)
737 imi->vecmap[i].vector_id = i + 1;
738 imi->vecmap[i].vsi_id = ad->vsi_id;
739 if (ad->n_rx_irqs == ad->n_rx_queues)
740 imi->vecmap[i].rxq_map = 1 << i;
742 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
744 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
745 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
746 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
750 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
755 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
756 u8 * macs, int is_add)
759 sizeof (virtchnl_ether_addr_list_t) +
760 count * sizeof (virtchnl_ether_addr_t);
762 virtchnl_ether_addr_list_t *al;
765 clib_memset (msg, 0, msg_len);
766 al = (virtchnl_ether_addr_list_t *) msg;
767 al->vsi_id = ad->vsi_id;
768 al->num_elements = count;
770 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
771 ad->vsi_id, al->num_elements, is_add);
773 for (i = 0; i < count; i++)
775 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
776 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
777 format_ethernet_address, &al->list[i].addr);
779 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
780 VIRTCHNL_OP_DEL_ETH_ADDR, msg, msg_len, 0, 0);
784 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
786 virtchnl_queue_select_t qs = { 0 };
788 qs.vsi_id = ad->vsi_id;
792 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
793 ad->vsi_id, qs.rx_queues, qs.tx_queues);
799 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
800 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
805 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
806 sizeof (virtchnl_queue_select_t), 0, 0);
810 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
811 virtchnl_eth_stats_t * es)
813 virtchnl_queue_select_t qs = { 0 };
814 qs.vsi_id = ad->vsi_id;
816 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
818 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
819 &qs, sizeof (virtchnl_queue_select_t),
820 es, sizeof (virtchnl_eth_stats_t));
824 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
826 avf_aq_desc_t d = { 0 };
829 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
831 avf_log_debug (ad, "reset");
834 d.v_opcode = VIRTCHNL_OP_RESET_VF;
835 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
838 t0 = vlib_time_now (vm);
840 vlib_process_suspend (vm, suspend_time);
842 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
844 if (rstat == 2 || rstat == 3)
846 avf_log_debug (ad, "reset completed in %.3fs", t);
850 t = vlib_time_now (vm) - t0;
851 if (t > AVF_RESET_MAX_WAIT_TIME)
853 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
854 return clib_error_return (0, "reset failed (timeout)");
862 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
864 virtchnl_vf_res_request_t res_req = { 0 };
867 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
869 res_req.num_queue_pairs = num_queue_pairs;
871 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
873 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
874 sizeof (virtchnl_vf_res_request_t), &res_req,
875 sizeof (virtchnl_vf_res_request_t));
878 * if PF responds, the request failed
879 * else PF initializes restart and avf_send_to_pf returns an error
883 return clib_error_return (0, "requested more than %u queue pairs",
884 res_req.num_queue_pairs);
887 t0 = vlib_time_now (vm);
889 vlib_process_suspend (vm, suspend_time);
890 t = vlib_time_now (vm) - t0;
892 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
894 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
897 if (t > AVF_RESET_MAX_WAIT_TIME)
899 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
900 return clib_error_return (0, "request queues failed (timeout)");
911 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
912 avf_create_if_args_t * args)
914 virtchnl_version_info_t ver = { 0 };
915 virtchnl_vf_resource_t res = { 0 };
917 vlib_thread_main_t *tm = vlib_get_thread_main ();
920 avf_adminq_init (vm, ad);
922 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
925 /* we failed to get more queues, but still we want to proceed */
926 clib_error_free (error);
928 if ((error = avf_device_reset (vm, ad)))
932 avf_adminq_init (vm, ad);
937 if ((error = avf_op_version (vm, ad, &ver)))
940 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
941 ver.minor != VIRTCHNL_VERSION_MINOR)
942 return clib_error_return (0, "incompatible protocol version "
943 "(remote %d.%d)", ver.major, ver.minor);
946 * OP_GET_VF_RESOURCES
948 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
951 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
952 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
954 ad->vsi_id = res.vsi_res[0].vsi_id;
955 ad->feature_bitmap = res.vf_offload_flags;
956 ad->num_queue_pairs = res.num_queue_pairs;
957 ad->max_vectors = res.max_vectors;
958 ad->max_mtu = res.max_mtu;
959 ad->rss_key_size = res.rss_key_size;
960 ad->rss_lut_size = res.rss_lut_size;
961 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
963 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
966 * Disable VLAN stripping
968 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
974 if (args->rxq_num == 0)
978 else if (args->rxq_num > ad->num_queue_pairs)
980 args->rxq_num = ad->num_queue_pairs;
981 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
982 "Using %u rx queues.", args->rxq_num);
985 for (i = 0; i < args->rxq_num; i++)
986 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
989 for (i = 0; i < tm->n_vlib_mains; i++)
990 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
993 if (ad->max_vectors > ad->n_rx_queues)
995 ad->flags |= AVF_DEVICE_F_RX_INT;
996 ad->n_rx_irqs = args->rxq_num;
1002 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1003 (error = avf_op_config_rss_lut (vm, ad)))
1006 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1007 (error = avf_op_config_rss_key (vm, ad)))
1010 if ((error = avf_op_config_vsi_queues (vm, ad)))
1013 if ((error = avf_op_config_irq_map (vm, ad)))
1016 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1018 for (i = 0; i < ad->n_rx_irqs; i++)
1019 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1020 AVF_IRQ_STATE_ENABLED);
1022 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1025 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1026 pow2_mask (ad->n_tx_queues))))
1029 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1034 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1036 vnet_main_t *vnm = vnet_get_main ();
1037 virtchnl_pf_event_t *e;
1040 if (ad->flags & AVF_DEVICE_F_ERROR)
1043 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1046 ASSERT (ad->error == 0);
1048 /* do not process device in reset state */
1049 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1050 if (r != VIRTCHNL_VFR_VFACTIVE)
1053 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1054 if ((r & 0xf0000000) != (1ULL << 31))
1056 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1057 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1061 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1062 if ((r & 0xf0000000) != (1ULL << 31))
1064 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1065 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1070 avf_op_get_stats (vm, ad, &ad->eth_stats);
1073 vec_foreach (e, ad->events)
1075 avf_log_debug (ad, "event: %s (%u) sev %d",
1076 virtchnl_event_names[e->event], e->event, e->severity);
1077 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1080 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1084 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1085 link_up = e->event_data.link_event_adv.link_status;
1087 link_up = e->event_data.link_event.link_status;
1089 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1090 mbps = e->event_data.link_event_adv.link_speed;
1091 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1093 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1095 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1097 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1099 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1101 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1103 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1106 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1109 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1111 ad->flags |= AVF_DEVICE_F_LINK_UP;
1112 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1113 VNET_HW_INTERFACE_FLAG_LINK_UP);
1114 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1115 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1117 ad->link_speed = mbps;
1119 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1121 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1125 if (ad->flags & AVF_DEVICE_F_ELOG)
1127 ELOG_TYPE_DECLARE (el) =
1129 .format = "avf[%d] link change: link_status %d "
1130 "link_speed %d mbps",
1131 .format_args = "i4i1i4",
1139 ed = ELOG_DATA (&vm->elog_main, el);
1140 ed->dev_instance = ad->dev_instance;
1141 ed->link_status = link_up;
1142 ed->link_speed = mbps;
1147 if (ad->flags & AVF_DEVICE_F_ELOG)
1149 ELOG_TYPE_DECLARE (el) =
1151 .format = "avf[%d] unknown event: event %d severity %d",
1152 .format_args = "i4i4i1i1",
1160 ed = ELOG_DATA (&vm->elog_main, el);
1161 ed->dev_instance = ad->dev_instance;
1162 ed->event = e->event;
1163 ed->severity = e->severity;
1168 vec_reset_length (ad->events);
1173 ad->flags |= AVF_DEVICE_F_ERROR;
1174 ASSERT (ad->error != 0);
1175 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1179 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1181 avf_device_t *ad = avf_get_device (req->dev_instance);
1183 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1184 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1186 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1187 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1189 clib_panic ("BUG: unknown avf proceess request type");
1191 if (req->calling_process_index != avf_process_node.index)
1192 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1195 static clib_error_t *
1196 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1198 uword *event_data = 0;
1199 req->calling_process_index = vlib_get_current_process_node_index (vm);
1201 if (req->calling_process_index != avf_process_node.index)
1203 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1204 AVF_PROCESS_EVENT_REQ, req);
1206 vlib_process_wait_for_event_or_clock (vm, 5.0);
1208 if (vlib_process_get_events (vm, &event_data) != 0)
1209 clib_panic ("avf process node failed to reply in 5 seconds");
1210 vec_free (event_data);
1213 avf_process_handle_request (vm, req);
1219 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1221 avf_process_req_t req;
1222 vlib_main_t *vm = vlib_get_main ();
1223 avf_device_t *ad = avf_get_device (hw->dev_instance);
1228 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1229 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1231 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1232 ad->flags |= AVF_DEVICE_F_PROMISC;
1238 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1239 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1240 req.dev_instance = hw->dev_instance;
1242 if ((err = avf_process_request (vm, &req)))
1244 avf_log_err (ad, "error: %U", format_clib_error, err);
1245 clib_error_free (err);
1252 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1254 avf_main_t *am = &avf_main;
1255 uword *event_data = 0, event_type;
1256 int enabled = 0, irq;
1257 f64 last_run_duration = 0;
1258 f64 last_periodic_time = 0;
1259 avf_device_t **dev_pointers = 0;
1265 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1267 vlib_process_wait_for_event (vm);
1269 event_type = vlib_process_get_events (vm, &event_data);
1275 last_periodic_time = vlib_time_now (vm);
1277 case AVF_PROCESS_EVENT_START:
1280 case AVF_PROCESS_EVENT_DELETE_IF:
1281 for (int i = 0; i < vec_len (event_data); i++)
1283 avf_device_t *ad = avf_get_device (event_data[i]);
1284 avf_delete_if (vm, ad, /* with_barrier */ 1);
1286 if (pool_elts (am->devices) < 1)
1289 case AVF_PROCESS_EVENT_AQ_INT:
1292 case AVF_PROCESS_EVENT_REQ:
1293 for (int i = 0; i < vec_len (event_data); i++)
1294 avf_process_handle_request (vm, (void *) event_data[i]);
1301 vec_reset_length (event_data);
1306 /* create local list of device pointers as device pool may grow
1308 vec_reset_length (dev_pointers);
1310 pool_foreach_index (i, am->devices)
1312 vec_add1 (dev_pointers, avf_get_device (i));
1315 vec_foreach_index (i, dev_pointers)
1317 avf_process_one_device (vm, dev_pointers[i], irq);
1320 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1326 VLIB_REGISTER_NODE (avf_process_node) = {
1327 .function = avf_process,
1328 .type = VLIB_NODE_TYPE_PROCESS,
1329 .name = "avf-process",
1334 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1336 uword pd = vlib_pci_get_private_data (vm, h);
1337 avf_device_t *ad = avf_get_device (pd);
1340 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1342 if (ad->flags & AVF_DEVICE_F_ELOG)
1345 ELOG_TYPE_DECLARE (el) =
1347 .format = "avf[%d] irq 0: icr0 0x%x",
1348 .format_args = "i4i4",
1357 ed = ELOG_DATA (&vm->elog_main, el);
1358 ed->dev_instance = ad->dev_instance;
1362 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1364 /* bit 30 - Send/Receive Admin queue interrupt indication */
1365 if (icr0 & (1 << 30))
1366 vlib_process_signal_event (vm, avf_process_node.index,
1367 AVF_PROCESS_EVENT_AQ_INT, 0);
1371 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1373 vnet_main_t *vnm = vnet_get_main ();
1374 uword pd = vlib_pci_get_private_data (vm, h);
1375 avf_device_t *ad = avf_get_device (pd);
1377 if (ad->flags & AVF_DEVICE_F_ELOG)
1380 ELOG_TYPE_DECLARE (el) =
1382 .format = "avf[%d] irq %d: received",
1383 .format_args = "i4i2",
1392 ed = ELOG_DATA (&vm->elog_main, el);
1393 ed->dev_instance = ad->dev_instance;
1399 if (ad->flags & AVF_DEVICE_F_RX_INT && ad->rxqs[line].int_mode)
1400 vnet_device_input_set_interrupt_pending (vnm, ad->hw_if_index, line);
1401 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1405 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1407 vnet_main_t *vnm = vnet_get_main ();
1408 avf_main_t *am = &avf_main;
1411 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1413 if (ad->hw_if_index)
1416 vlib_worker_thread_barrier_sync (vm);
1417 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1418 vnet_hw_interface_unassign_rx_thread (vnm, ad->hw_if_index, 0);
1419 ethernet_delete_interface (vnm, ad->hw_if_index);
1421 vlib_worker_thread_barrier_release (vm);
1424 vlib_pci_device_close (vm, ad->pci_dev_handle);
1426 vlib_physmem_free (vm, ad->atq);
1427 vlib_physmem_free (vm, ad->arq);
1428 vlib_physmem_free (vm, ad->atq_bufs);
1429 vlib_physmem_free (vm, ad->arq_bufs);
1432 vec_foreach_index (i, ad->rxqs)
1434 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1435 vlib_physmem_free (vm, (void *) rxq->descs);
1436 if (rxq->n_enqueued)
1437 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1439 vec_free (rxq->bufs);
1442 vec_free (ad->rxqs);
1445 vec_foreach_index (i, ad->txqs)
1447 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1448 vlib_physmem_free (vm, (void *) txq->descs);
1449 if (txq->n_enqueued)
1451 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1452 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1455 /* Free the placeholder buffer */
1456 vlib_buffer_free_one(vm, txq->ctx_desc_placeholder_bi);
1457 vec_free (txq->bufs);
1458 clib_ring_free (txq->rs_slots);
1461 vec_free (ad->txqs);
1462 vec_free (ad->name);
1464 clib_error_free (ad->error);
1465 clib_memset (ad, 0, sizeof (*ad));
1466 pool_put_index (am->devices, ad->dev_instance);
1471 avf_validate_queue_size (avf_create_if_args_t * args)
1473 clib_error_t *error = 0;
1475 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1476 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1478 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1479 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1481 args->rv = VNET_API_ERROR_INVALID_VALUE;
1483 clib_error_return (error, "queue size must not be greater than %u",
1487 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1488 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1490 args->rv = VNET_API_ERROR_INVALID_VALUE;
1492 clib_error_return (error, "queue size must not be smaller than %u",
1496 if ((args->rxq_size & (args->rxq_size - 1)) ||
1497 (args->txq_size & (args->txq_size - 1)))
1499 args->rv = VNET_API_ERROR_INVALID_VALUE;
1501 clib_error_return (error, "queue size must be a power of two");
1508 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1510 vnet_main_t *vnm = vnet_get_main ();
1511 avf_main_t *am = &avf_main;
1512 avf_device_t *ad, **adp;
1513 vlib_pci_dev_handle_t h;
1514 clib_error_t *error = 0;
1517 /* check input args */
1518 if (avf_validate_queue_size (args) != 0)
1522 pool_foreach (adp, am->devices) {
1523 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1525 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1527 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1528 &args->addr, "pci address in use");
1534 pool_get (am->devices, adp);
1535 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1536 CLIB_CACHE_LINE_BYTES);
1537 clib_memset (ad, 0, sizeof (avf_device_t));
1538 ad->dev_instance = adp - am->devices;
1539 ad->per_interface_next_index = ~0;
1540 ad->name = vec_dup (args->name);
1542 if (args->enable_elog)
1543 ad->flags |= AVF_DEVICE_F_ELOG;
1545 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1548 pool_put (am->devices, adp);
1550 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1552 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1556 ad->pci_dev_handle = h;
1557 ad->pci_addr = args->addr;
1558 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1560 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1562 if ((error = vlib_pci_bus_master_enable (vm, h)))
1565 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1568 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1570 CLIB_CACHE_LINE_BYTES,
1574 error = vlib_physmem_last_error (vm);
1578 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1581 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1583 CLIB_CACHE_LINE_BYTES,
1587 error = vlib_physmem_last_error (vm);
1591 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1594 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1596 CLIB_CACHE_LINE_BYTES,
1598 if (ad->atq_bufs == 0)
1600 error = vlib_physmem_last_error (vm);
1604 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1607 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1609 CLIB_CACHE_LINE_BYTES,
1611 if (ad->arq_bufs == 0)
1613 error = vlib_physmem_last_error (vm);
1617 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1620 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1621 ad->flags |= AVF_DEVICE_F_VA_DMA;
1623 if ((error = avf_device_init (vm, am, ad, args)))
1626 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1627 &avf_irq_0_handler)))
1630 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1631 &avf_irq_n_handler)))
1634 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1637 if ((error = vlib_pci_intr_enable (vm, h)))
1640 /* create interface */
1641 error = ethernet_register_interface (vnm, avf_device_class.index,
1642 ad->dev_instance, ad->hwaddr,
1643 &ad->hw_if_index, avf_flag_change);
1648 /* Indicate ability to support L3 DMAC filtering and
1649 * initialize interface to L3 non-promisc mode */
1650 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1652 VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER |
1653 VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD |
1654 VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
1655 ethernet_set_flags (vnm, ad->hw_if_index,
1656 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1658 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1659 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1661 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1662 hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
1663 vnet_hw_interface_set_input_node (vnm, ad->hw_if_index,
1664 avf_input_node.index);
1666 for (i = 0; i < ad->n_rx_queues; i++)
1667 vnet_hw_interface_assign_rx_thread (vnm, ad->hw_if_index, i, ~0);
1669 if (pool_elts (am->devices) == 1)
1670 vlib_process_signal_event (vm, avf_process_node.index,
1671 AVF_PROCESS_EVENT_START, 0);
1676 avf_delete_if (vm, ad, /* with_barrier */ 0);
1677 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1678 args->error = clib_error_return (error, "pci-addr %U",
1679 format_vlib_pci_addr, &args->addr);
1680 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1683 static clib_error_t *
1684 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1686 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1687 avf_device_t *ad = avf_get_device (hi->dev_instance);
1688 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1690 if (ad->flags & AVF_DEVICE_F_ERROR)
1691 return clib_error_return (0, "device is in error state");
1695 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1696 VNET_HW_INTERFACE_FLAG_LINK_UP);
1697 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1701 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1702 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1707 static clib_error_t *
1708 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1709 vnet_hw_if_rx_mode mode)
1711 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1712 avf_device_t *ad = avf_get_device (hw->dev_instance);
1713 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1715 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1717 if (rxq->int_mode == 0)
1719 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1720 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1722 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1727 if (rxq->int_mode == 1)
1729 if (ad->n_rx_irqs != ad->n_rx_queues)
1730 return clib_error_return (0, "not enough interrupt lines");
1732 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1739 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1742 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1743 avf_device_t *ad = avf_get_device (hw->dev_instance);
1745 /* Shut off redirection */
1746 if (node_index == ~0)
1748 ad->per_interface_next_index = node_index;
1752 ad->per_interface_next_index =
1753 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1756 static clib_error_t *
1757 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1758 const u8 * address, u8 is_add)
1760 vlib_main_t *vm = vlib_get_main ();
1761 avf_process_req_t req;
1763 req.dev_instance = hw->dev_instance;
1764 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1765 req.is_add = is_add;
1766 clib_memcpy (req.eth_addr, address, 6);
1768 return avf_process_request (vm, &req);
1771 static char *avf_tx_func_error_strings[] = {
1773 foreach_avf_tx_func_error
1778 avf_clear_hw_interface_counters (u32 instance)
1780 avf_device_t *ad = avf_get_device (instance);
1781 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1782 &ad->eth_stats, sizeof (ad->eth_stats));
1786 VNET_DEVICE_CLASS (avf_device_class,) =
1788 .name = "Adaptive Virtual Function (AVF) interface",
1789 .clear_counters = avf_clear_hw_interface_counters,
1790 .format_device = format_avf_device,
1791 .format_device_name = format_avf_device_name,
1792 .admin_up_down_function = avf_interface_admin_up_down,
1793 .rx_mode_change_function = avf_interface_rx_mode_change,
1794 .rx_redirect_to_node = avf_set_interface_next_node,
1795 .mac_addr_add_del_function = avf_add_del_mac_address,
1796 .tx_function_n_errors = AVF_TX_N_ERROR,
1797 .tx_function_error_strings = avf_tx_func_error_strings,
1802 avf_init (vlib_main_t * vm)
1804 avf_main_t *am = &avf_main;
1805 vlib_thread_main_t *tm = vlib_get_thread_main ();
1807 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1808 CLIB_CACHE_LINE_BYTES);
1814 VLIB_INIT_FUNCTION (avf_init) =
1816 .runs_after = VLIB_INITS ("pci_bus_init"),
1821 * fd.io coding-style-patch-verification: ON
1824 * eval: (c-set-style "gnu")