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>
23 #include <vnet/interface/rx_queue_funcs.h>
24 #include <vnet/interface/tx_queue_funcs.h>
28 #define AVF_MBOX_LEN 64
29 #define AVF_MBOX_BUF_SZ 4096
30 #define AVF_RXQ_SZ 512
31 #define AVF_TXQ_SZ 512
32 #define AVF_ITR_INT 250
34 #define PCI_VENDOR_ID_INTEL 0x8086
35 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
36 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
37 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
39 VLIB_REGISTER_LOG_CLASS (avf_log) = {
43 VLIB_REGISTER_LOG_CLASS (avf_stats_log) = {
45 .subclass_name = "stats",
49 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
51 static pci_device_id_t avf_pci_device_ids[] = {
52 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
53 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
54 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
58 const static char *virtchnl_event_names[] = {
59 #define _(v, n) [v] = #n,
60 foreach_virtchnl_event_code
66 AVF_IRQ_STATE_DISABLED,
67 AVF_IRQ_STATE_ENABLED,
68 AVF_IRQ_STATE_WB_ON_ITR,
72 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
74 u32 dyn_ctl0 = 0, icr0_ena = 0;
76 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
78 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
79 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
82 if (state == AVF_IRQ_STATE_DISABLED)
88 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
90 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
91 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
92 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
93 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
95 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
96 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
101 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
106 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
109 if (state == AVF_IRQ_STATE_DISABLED)
112 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
113 if (state == AVF_IRQ_STATE_WB_ON_ITR)
115 /* minimal ITR interval, use ITR1 */
116 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
117 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
118 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
122 /* configured ITR interval, use ITR0 */
123 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
124 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
127 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
133 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
136 clib_error_t *err = 0;
137 avf_aq_desc_t *d, dc;
138 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
140 d = &ad->atq[ad->atq_next_slot];
141 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
142 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
148 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
149 d->addr_hi = (u32) (pa >> 32);
150 d->addr_lo = (u32) pa;
151 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
153 d->flags |= AVF_AQ_F_BUF;
156 if (ad->flags & AVF_DEVICE_F_ELOG)
157 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
159 CLIB_MEMORY_BARRIER ();
160 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
161 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
164 t0 = vlib_time_now (vm);
166 vlib_process_suspend (vm, suspend_time);
168 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
170 f64 t = vlib_time_now (vm) - t0;
171 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
173 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
174 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
182 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
183 if (d->flags & AVF_AQ_F_ERR)
184 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
185 "%d]", d->opcode, d->retval);
188 if (ad->flags & AVF_DEVICE_F_ELOG)
190 ELOG_TYPE_DECLARE (el) =
192 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
193 "datalen %d retval %d",
194 .format_args = "i4i2i2i2i2i2",
205 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
206 ed->dev_instance = ad->dev_instance;
207 ed->s_flags = dc.flags;
208 ed->r_flags = d->flags;
209 ed->opcode = dc.opcode;
210 ed->datalen = dc.datalen;
211 ed->retval = d->retval;
218 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
222 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
223 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
225 if (ad->flags & AVF_DEVICE_F_ELOG)
227 ELOG_TYPE_DECLARE (el) =
229 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
230 .format_args = "i4i4i4",
238 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
239 ed->dev_instance = ad->dev_instance;
247 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
253 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
254 rxq = vec_elt_at_index (ad->rxqs, qid);
255 rxq->size = rxq_size;
257 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
258 sizeof (avf_rx_desc_t),
259 2 * CLIB_CACHE_LINE_BYTES,
262 rxq->buffer_pool_index =
263 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
266 return vlib_physmem_last_error (vm);
268 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
271 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
272 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
273 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
275 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
276 rxq->buffer_pool_index);
279 return clib_error_return (0, "buffer allocation error");
281 rxq->n_enqueued = n_alloc;
282 avf_rx_desc_t *d = rxq->descs;
283 for (i = 0; i < n_alloc; i++)
285 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
286 if (ad->flags & AVF_DEVICE_F_VA_DMA)
287 d->qword[0] = vlib_buffer_get_va (b);
289 d->qword[0] = vlib_buffer_get_pa (vm, b);
297 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
302 u8 bpi = vlib_buffer_pool_get_default_for_numa (vm,
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 clib_spinlock_init (&txq->lock);
311 /* Prepare a placeholder buffer(s) to maintain a 1-1 relationship between
312 * bufs and descs when a context descriptor is added in descs. Worst case
313 * every second descriptor is context descriptor and due to b->ref_count
314 * being u8 we need one for each block of 510 descriptors */
316 n = (txq->size / 510) + 1;
317 vec_validate_aligned (txq->ph_bufs, n, CLIB_CACHE_LINE_BYTES);
319 if (!vlib_buffer_alloc_from_pool (vm, txq->ph_bufs, n, bpi))
320 return clib_error_return (0, "buffer allocation error");
322 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
323 sizeof (avf_tx_desc_t),
324 2 * CLIB_CACHE_LINE_BYTES,
327 return vlib_physmem_last_error (vm);
329 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
332 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
333 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
335 /* initialize ring of pending RS slots */
336 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
338 vec_validate_aligned (txq->tmp_descs, txq->size, CLIB_CACHE_LINE_BYTES);
339 vec_validate_aligned (txq->tmp_bufs, txq->size, CLIB_CACHE_LINE_BYTES);
348 } virtchnl_promisc_info_t;
351 avf_arq_slot_init (avf_device_t * ad, u16 slot)
354 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
356 clib_memset (d, 0, sizeof (avf_aq_desc_t));
357 d->flags = AVF_AQ_F_BUF;
358 d->datalen = AVF_MBOX_BUF_SZ;
359 d->addr_hi = (u32) (pa >> 32);
360 d->addr_lo = (u32) pa;
364 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
366 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
367 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
371 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
376 /* VF MailBox Transmit */
377 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
378 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
380 pa = avf_dma_addr (vm, ad, ad->atq);
381 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
382 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
383 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
384 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
385 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
387 /* VF MailBox Receive */
388 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
389 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
391 for (i = 0; i < AVF_MBOX_LEN; i++)
392 avf_arq_slot_init (ad, i);
394 pa = avf_dma_addr (vm, ad, ad->arq);
396 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
397 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
398 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
399 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
400 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
401 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
403 ad->atq_next_slot = 0;
404 ad->arq_next_slot = 0;
408 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
409 void *in, int in_len, void *out, int out_len)
412 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
414 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
416 /* adminq operations should be only done from process node after device
418 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
419 vlib_get_current_process_node_index (vm) == avf_process_node.index);
421 /* suppress interrupt in the next adminq receive slot
422 as we are going to wait for response
423 we only need interrupts when event is received */
424 d = &ad->arq[ad->arq_next_slot];
425 d->flags |= AVF_AQ_F_SI;
427 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
430 t0 = vlib_time_now (vm);
432 head = avf_get_u32 (ad->bar0, AVF_ARQH);
434 if (ad->arq_next_slot == head)
436 f64 t = vlib_time_now (vm) - t0;
437 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
439 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
440 return clib_error_return (0, "timeout");
442 vlib_process_suspend (vm, suspend_time);
447 d = &ad->arq[ad->arq_next_slot];
449 if (d->v_opcode == VIRTCHNL_OP_EVENT)
451 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
452 virtchnl_pf_event_t *e;
454 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
455 ((d->flags & AVF_AQ_F_BUF) == 0))
456 return clib_error_return (0, "event message error");
458 vec_add2 (ad->events, e, 1);
459 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
460 avf_arq_slot_init (ad, ad->arq_next_slot);
463 t0 = vlib_time_now (vm);
464 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
468 if (d->v_opcode != op)
470 err = clib_error_return (0,
471 "unexpected message received [v_opcode = %u, "
472 "expected %u, v_retval %d]",
473 d->v_opcode, op, d->v_retval);
479 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
480 d->v_opcode, d->v_retval);
484 if (out_len && d->flags & AVF_AQ_F_BUF)
486 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
487 clib_memcpy_fast (out, buf, out_len);
490 avf_arq_slot_init (ad, ad->arq_next_slot);
491 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
493 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
497 if (ad->flags & AVF_DEVICE_F_ELOG)
499 ELOG_TYPE_DECLARE (el) =
501 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
502 .format_args = "i4t4i4i4",
503 .n_enum_strings = VIRTCHNL_N_OPS,
505 #define _(v, n) [v] = #n,
517 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
518 ed->dev_instance = ad->dev_instance;
520 ed->v_opcode_val = op;
521 ed->v_retval = d->v_retval;
527 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
528 virtchnl_version_info_t * ver)
530 clib_error_t *err = 0;
531 virtchnl_version_info_t myver = {
532 .major = VIRTCHNL_VERSION_MAJOR,
533 .minor = VIRTCHNL_VERSION_MINOR,
536 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
538 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
539 sizeof (virtchnl_version_info_t), ver,
540 sizeof (virtchnl_version_info_t));
549 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
550 virtchnl_vf_resource_t * res)
552 clib_error_t *err = 0;
553 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
554 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
555 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
556 VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_OFFLOAD_FDIR_PF |
557 VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF | VIRTCHNL_VF_OFFLOAD_VLAN_V2);
559 avf_log_debug (ad, "get_vf_resources: bitmap 0x%x (%U)", bitmap,
560 format_avf_vf_cap_flags, bitmap);
561 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
562 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
568 "get_vf_resources: num_vsis %u num_queue_pairs %u "
569 "max_vectors %u max_mtu %u vf_cap_flags 0x%x (%U) "
570 "rss_key_size %u rss_lut_size %u",
571 res->num_vsis, res->num_queue_pairs, res->max_vectors,
572 res->max_mtu, res->vf_cap_flags, format_avf_vf_cap_flags,
573 res->vf_cap_flags, res->rss_key_size, res->rss_lut_size);
574 for (i = 0; i < res->num_vsis; i++)
577 "get_vf_resources_vsi[%u]: vsi_id %u num_queue_pairs %u vsi_type %u "
578 "qset_handle %u default_mac_addr %U",
579 i, res->vsi_res[i].vsi_id, res->vsi_res[i].num_queue_pairs,
580 res->vsi_res[i].vsi_type, res->vsi_res[i].qset_handle,
581 format_ethernet_address, res->vsi_res[i].default_mac_addr);
588 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
590 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
593 virtchnl_rss_lut_t *rl;
595 clib_memset (msg, 0, msg_len);
596 rl = (virtchnl_rss_lut_t *) msg;
597 rl->vsi_id = ad->vsi_id;
598 rl->lut_entries = ad->rss_lut_size;
599 for (i = 0; i < ad->rss_lut_size; i++)
600 rl->lut[i] = i % ad->n_rx_queues;
602 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
603 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
604 rl->lut, rl->lut_entries);
606 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
611 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
613 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
616 virtchnl_rss_key_t *rk;
618 clib_memset (msg, 0, msg_len);
619 rk = (virtchnl_rss_key_t *) msg;
620 rk->vsi_id = ad->vsi_id;
621 rk->key_len = ad->rss_key_size;
622 u32 seed = random_default_seed ();
623 for (i = 0; i < ad->rss_key_size; i++)
624 rk->key[i] = (u8) random_u32 (&seed);
626 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
627 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
630 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
635 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
637 avf_log_debug (ad, "disable_vlan_stripping");
639 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
644 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
647 virtchnl_promisc_info_t pi = { 0 };
649 pi.vsi_id = ad->vsi_id;
652 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
654 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
655 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
656 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
658 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
659 sizeof (virtchnl_promisc_info_t), 0, 0);
664 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
667 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
668 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
669 sizeof (virtchnl_queue_pair_info_t);
671 virtchnl_vsi_queue_config_info_t *ci;
673 clib_memset (msg, 0, msg_len);
674 ci = (virtchnl_vsi_queue_config_info_t *) msg;
675 ci->vsi_id = ad->vsi_id;
676 ci->num_queue_pairs = n_qp;
678 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
679 ad->vsi_id, ci->num_queue_pairs);
681 for (i = 0; i < n_qp; i++)
683 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
684 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
686 rxq->vsi_id = ad->vsi_id;
688 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
689 if (i < vec_len (ad->rxqs))
691 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
692 rxq->ring_len = q->size;
693 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
694 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
695 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
697 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
698 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
699 i, rxq->max_pkt_size, rxq->ring_len,
700 rxq->databuffer_size, rxq->dma_ring_addr);
702 txq->vsi_id = ad->vsi_id;
704 if (i < vec_len (ad->txqs))
706 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
707 txq->ring_len = q->size;
708 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
710 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
711 "dma_ring_addr 0x%llx", i, txq->ring_len,
715 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
720 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
722 int msg_len = sizeof (virtchnl_irq_map_info_t) +
723 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
725 virtchnl_irq_map_info_t *imi;
727 clib_memset (msg, 0, msg_len);
728 imi = (virtchnl_irq_map_info_t *) msg;
729 imi->num_vectors = ad->n_rx_irqs;
731 for (int i = 0; i < ad->n_rx_irqs; i++)
733 imi->vecmap[i].vector_id = i + 1;
734 imi->vecmap[i].vsi_id = ad->vsi_id;
735 if (ad->n_rx_irqs == ad->n_rx_queues)
736 imi->vecmap[i].rxq_map = 1 << i;
738 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
740 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
741 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
742 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
746 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
751 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
752 u8 * macs, int is_add)
755 sizeof (virtchnl_ether_addr_list_t) +
756 count * sizeof (virtchnl_ether_addr_t);
758 virtchnl_ether_addr_list_t *al;
761 clib_memset (msg, 0, msg_len);
762 al = (virtchnl_ether_addr_list_t *) msg;
763 al->vsi_id = ad->vsi_id;
764 al->num_elements = count;
766 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
767 ad->vsi_id, al->num_elements, is_add);
769 for (i = 0; i < count; i++)
771 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
772 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
773 format_ethernet_address, &al->list[i].addr);
775 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
776 VIRTCHNL_OP_DEL_ETH_ADDR, msg, msg_len, 0, 0);
780 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
782 virtchnl_queue_select_t qs = { 0 };
784 qs.vsi_id = ad->vsi_id;
788 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
789 ad->vsi_id, qs.rx_queues, qs.tx_queues);
795 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
796 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
801 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
802 sizeof (virtchnl_queue_select_t), 0, 0);
806 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
807 virtchnl_eth_stats_t * es)
809 virtchnl_queue_select_t qs = { 0 };
811 qs.vsi_id = ad->vsi_id;
813 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS, &qs,
814 sizeof (virtchnl_queue_select_t), es,
815 sizeof (virtchnl_eth_stats_t));
817 avf_stats_log_debug (ad, "get_stats: vsi_id %u\n %U", ad->vsi_id,
818 format_avf_eth_stats, es);
824 avf_op_get_offload_vlan_v2_caps (vlib_main_t *vm, avf_device_t *ad,
825 virtchnl_vlan_caps_t *vc)
829 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, 0, 0, vc,
830 sizeof (virtchnl_vlan_caps_t));
832 avf_log_debug (ad, "get_offload_vlan_v2_caps:\n%U%U", format_white_space, 16,
833 format_avf_vlan_caps, vc);
839 avf_op_disable_vlan_stripping_v2 (vlib_main_t *vm, avf_device_t *ad, u32 outer,
842 virtchnl_vlan_setting_t vs = {
843 .outer_ethertype_setting = outer,
844 .inner_ethertype_setting = inner,
845 .vport_id = ad->vsi_id,
848 avf_log_debug (ad, "disable_vlan_stripping_v2: outer: %U, inner %U",
849 format_avf_vlan_support, outer, format_avf_vlan_support,
852 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2, &vs,
853 sizeof (virtchnl_vlan_setting_t), 0, 0);
857 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
859 avf_aq_desc_t d = { 0 };
862 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
864 avf_log_debug (ad, "reset");
867 d.v_opcode = VIRTCHNL_OP_RESET_VF;
868 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
871 t0 = vlib_time_now (vm);
873 vlib_process_suspend (vm, suspend_time);
875 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
877 if (rstat == 2 || rstat == 3)
879 avf_log_debug (ad, "reset completed in %.3fs", t);
883 t = vlib_time_now (vm) - t0;
884 if (t > AVF_RESET_MAX_WAIT_TIME)
886 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
887 return clib_error_return (0, "reset failed (timeout)");
895 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
897 virtchnl_vf_res_request_t res_req = { 0 };
900 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
902 res_req.num_queue_pairs = num_queue_pairs;
904 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
906 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
907 sizeof (virtchnl_vf_res_request_t), &res_req,
908 sizeof (virtchnl_vf_res_request_t));
911 * if PF responds, the request failed
912 * else PF initializes restart and avf_send_to_pf returns an error
916 return clib_error_return (0, "requested more than %u queue pairs",
917 res_req.num_queue_pairs);
920 t0 = vlib_time_now (vm);
922 vlib_process_suspend (vm, suspend_time);
923 t = vlib_time_now (vm) - t0;
925 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
927 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
930 if (t > AVF_RESET_MAX_WAIT_TIME)
932 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
933 return clib_error_return (0, "request queues failed (timeout)");
944 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
945 avf_create_if_args_t * args)
947 virtchnl_version_info_t ver = { 0 };
948 virtchnl_vf_resource_t res = { 0 };
951 u16 rxq_num, txq_num;
953 avf_adminq_init (vm, ad);
955 rxq_num = args->rxq_num ? args->rxq_num : 1;
956 txq_num = args->txq_num ? args->txq_num : vlib_get_n_threads ();
958 if ((error = avf_request_queues (vm, ad, clib_max (txq_num, rxq_num))))
960 /* we failed to get more queues, but still we want to proceed */
961 clib_error_free (error);
963 if ((error = avf_device_reset (vm, ad)))
967 avf_adminq_init (vm, ad);
972 if ((error = avf_op_version (vm, ad, &ver)))
975 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
976 ver.minor != VIRTCHNL_VERSION_MINOR)
977 return clib_error_return (0, "incompatible protocol version "
978 "(remote %d.%d)", ver.major, ver.minor);
981 * OP_GET_VF_RESOURCES
983 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
986 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
987 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
989 ad->vsi_id = res.vsi_res[0].vsi_id;
990 ad->cap_flags = res.vf_cap_flags;
991 ad->num_queue_pairs = res.num_queue_pairs;
992 ad->n_rx_queues = clib_min (rxq_num, res.num_queue_pairs);
993 ad->n_tx_queues = clib_min (txq_num, res.num_queue_pairs);
994 ad->max_vectors = res.max_vectors;
995 ad->max_mtu = res.max_mtu;
996 ad->rss_key_size = res.rss_key_size;
997 ad->rss_lut_size = res.rss_lut_size;
998 ad->n_rx_irqs = ad->max_vectors > ad->n_rx_queues ? ad->n_rx_queues : 1;
1000 if (ad->max_vectors > ad->n_rx_queues)
1001 ad->flags |= AVF_DEVICE_F_RX_INT;
1003 wb_on_itr = (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
1005 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
1007 if (args->rxq_num != 0 && ad->n_rx_queues != args->rxq_num)
1008 return clib_error_return (0,
1009 "Number of requested RX queues (%u) is "
1010 "higher than mumber of available queues (%u)",
1011 args->rxq_num, ad->num_queue_pairs);
1013 if (args->txq_num != 0 && ad->n_tx_queues != args->txq_num)
1014 return clib_error_return (0,
1015 "Number of requested TX queues (%u) is "
1016 "higher than mumber of available queues (%u)",
1017 args->txq_num, ad->num_queue_pairs);
1020 * Disable VLAN stripping
1022 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2)
1024 virtchnl_vlan_caps_t vc = {};
1025 u32 outer = VIRTCHNL_VLAN_UNSUPPORTED, inner = VIRTCHNL_VLAN_UNSUPPORTED;
1026 u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
1028 if ((error = avf_op_get_offload_vlan_v2_caps (vm, ad, &vc)))
1031 outer = vc.offloads.stripping_support.outer & mask;
1032 inner = vc.offloads.stripping_support.inner & mask;
1034 if ((outer || inner) &&
1035 (error = avf_op_disable_vlan_stripping_v2 (vm, ad, outer, inner)))
1038 else if ((error = avf_op_disable_vlan_stripping (vm, ad)))
1044 for (i = 0; i < ad->n_rx_queues; i++)
1045 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
1048 for (i = 0; i < ad->n_tx_queues; i++)
1049 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
1052 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1053 (error = avf_op_config_rss_lut (vm, ad)))
1056 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1057 (error = avf_op_config_rss_key (vm, ad)))
1060 if ((error = avf_op_config_vsi_queues (vm, ad)))
1063 if ((error = avf_op_config_irq_map (vm, ad)))
1066 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1068 for (i = 0; i < ad->n_rx_irqs; i++)
1069 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1070 AVF_IRQ_STATE_ENABLED);
1072 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1075 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1076 pow2_mask (ad->n_tx_queues))))
1079 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1084 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1086 vnet_main_t *vnm = vnet_get_main ();
1087 virtchnl_pf_event_t *e;
1090 if (ad->flags & AVF_DEVICE_F_ERROR)
1093 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1096 ASSERT (ad->error == 0);
1098 /* do not process device in reset state */
1099 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1100 if (r != VIRTCHNL_VFR_VFACTIVE)
1103 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1104 if ((r & 0xf0000000) != (1ULL << 31))
1106 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1107 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1111 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1112 if ((r & 0xf0000000) != (1ULL << 31))
1114 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1115 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1120 avf_op_get_stats (vm, ad, &ad->eth_stats);
1123 vec_foreach (e, ad->events)
1125 avf_log_debug (ad, "event: %s (%u) sev %d",
1126 virtchnl_event_names[e->event], e->event, e->severity);
1127 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1130 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1134 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1135 link_up = e->event_data.link_event_adv.link_status;
1137 link_up = e->event_data.link_event.link_status;
1139 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1140 mbps = e->event_data.link_event_adv.link_speed;
1141 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1143 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1145 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1147 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1149 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1151 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1153 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1156 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1159 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1161 ad->flags |= AVF_DEVICE_F_LINK_UP;
1162 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1163 VNET_HW_INTERFACE_FLAG_LINK_UP);
1164 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1165 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1167 ad->link_speed = mbps;
1169 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1171 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1175 if (ad->flags & AVF_DEVICE_F_ELOG)
1177 ELOG_TYPE_DECLARE (el) =
1179 .format = "avf[%d] link change: link_status %d "
1180 "link_speed %d mbps",
1181 .format_args = "i4i1i4",
1189 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1190 ed->dev_instance = ad->dev_instance;
1191 ed->link_status = link_up;
1192 ed->link_speed = mbps;
1197 if (ad->flags & AVF_DEVICE_F_ELOG)
1199 ELOG_TYPE_DECLARE (el) =
1201 .format = "avf[%d] unknown event: event %d severity %d",
1202 .format_args = "i4i4i1i1",
1210 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1211 ed->dev_instance = ad->dev_instance;
1212 ed->event = e->event;
1213 ed->severity = e->severity;
1218 vec_reset_length (ad->events);
1223 ad->flags |= AVF_DEVICE_F_ERROR;
1224 ASSERT (ad->error != 0);
1225 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1229 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1230 u8 *rule, u32 rule_len, u8 *program_status,
1233 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1236 return avf_send_to_pf (vm, ad,
1237 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER :
1238 VIRTCHNL_OP_DEL_FDIR_FILTER,
1239 rule, rule_len, program_status, status_len);
1243 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1245 avf_device_t *ad = avf_get_device (req->dev_instance);
1247 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1248 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1250 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1251 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1252 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1254 avf_op_program_flow (vm, ad, req->is_add, req->rule, req->rule_len,
1255 req->program_status, req->status_len);
1257 clib_panic ("BUG: unknown avf proceess request type");
1259 if (req->calling_process_index != avf_process_node.index)
1260 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1263 static clib_error_t *
1264 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1266 uword *event_data = 0;
1267 req->calling_process_index = vlib_get_current_process_node_index (vm);
1269 if (req->calling_process_index != avf_process_node.index)
1271 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1272 AVF_PROCESS_EVENT_REQ, req);
1274 vlib_process_wait_for_event_or_clock (vm, 5.0);
1276 if (vlib_process_get_events (vm, &event_data) != 0)
1277 clib_panic ("avf process node failed to reply in 5 seconds");
1278 vec_free (event_data);
1281 avf_process_handle_request (vm, req);
1287 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1289 avf_process_req_t req;
1290 vlib_main_t *vm = vlib_get_main ();
1291 avf_device_t *ad = avf_get_device (hw->dev_instance);
1296 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1297 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1299 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1300 ad->flags |= AVF_DEVICE_F_PROMISC;
1306 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1307 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1308 req.dev_instance = hw->dev_instance;
1310 if ((err = avf_process_request (vm, &req)))
1312 avf_log_err (ad, "error: %U", format_clib_error, err);
1313 clib_error_free (err);
1320 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1322 avf_main_t *am = &avf_main;
1323 uword *event_data = 0, event_type;
1324 int enabled = 0, irq;
1325 f64 last_run_duration = 0;
1326 f64 last_periodic_time = 0;
1327 avf_device_t **dev_pointers = 0;
1333 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1335 vlib_process_wait_for_event (vm);
1337 event_type = vlib_process_get_events (vm, &event_data);
1343 last_periodic_time = vlib_time_now (vm);
1345 case AVF_PROCESS_EVENT_START:
1348 case AVF_PROCESS_EVENT_DELETE_IF:
1349 for (int i = 0; i < vec_len (event_data); i++)
1351 avf_device_t *ad = avf_get_device (event_data[i]);
1352 avf_delete_if (vm, ad, /* with_barrier */ 1);
1354 if (pool_elts (am->devices) < 1)
1357 case AVF_PROCESS_EVENT_AQ_INT:
1360 case AVF_PROCESS_EVENT_REQ:
1361 for (int i = 0; i < vec_len (event_data); i++)
1362 avf_process_handle_request (vm, (void *) event_data[i]);
1369 vec_reset_length (event_data);
1374 /* create local list of device pointers as device pool may grow
1376 vec_reset_length (dev_pointers);
1378 pool_foreach_index (i, am->devices)
1380 vec_add1 (dev_pointers, avf_get_device (i));
1383 vec_foreach_index (i, dev_pointers)
1385 avf_process_one_device (vm, dev_pointers[i], irq);
1388 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1394 VLIB_REGISTER_NODE (avf_process_node) = {
1395 .function = avf_process,
1396 .type = VLIB_NODE_TYPE_PROCESS,
1397 .name = "avf-process",
1402 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1404 uword pd = vlib_pci_get_private_data (vm, h);
1405 avf_device_t *ad = avf_get_device (pd);
1408 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1410 if (ad->flags & AVF_DEVICE_F_ELOG)
1413 ELOG_TYPE_DECLARE (el) =
1415 .format = "avf[%d] irq 0: icr0 0x%x",
1416 .format_args = "i4i4",
1425 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1426 ed->dev_instance = ad->dev_instance;
1430 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1432 /* bit 30 - Send/Receive Admin queue interrupt indication */
1433 if (icr0 & (1 << 30))
1434 vlib_process_signal_event (vm, avf_process_node.index,
1435 AVF_PROCESS_EVENT_AQ_INT, 0);
1439 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1441 vnet_main_t *vnm = vnet_get_main ();
1442 uword pd = vlib_pci_get_private_data (vm, h);
1443 avf_device_t *ad = avf_get_device (pd);
1444 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1446 if (ad->flags & AVF_DEVICE_F_ELOG)
1449 ELOG_TYPE_DECLARE (el) =
1451 .format = "avf[%d] irq %d: received",
1452 .format_args = "i4i2",
1461 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1462 ed->dev_instance = ad->dev_instance;
1468 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1469 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1470 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1474 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1476 vnet_main_t *vnm = vnet_get_main ();
1477 avf_main_t *am = &avf_main;
1481 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1483 if (ad->hw_if_index)
1486 vlib_worker_thread_barrier_sync (vm);
1487 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1488 ethernet_delete_interface (vnm, ad->hw_if_index);
1490 vlib_worker_thread_barrier_release (vm);
1493 vlib_pci_device_close (vm, ad->pci_dev_handle);
1495 vlib_physmem_free (vm, ad->atq);
1496 vlib_physmem_free (vm, ad->arq);
1497 vlib_physmem_free (vm, ad->atq_bufs);
1498 vlib_physmem_free (vm, ad->arq_bufs);
1501 vec_foreach_index (i, ad->rxqs)
1503 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1504 vlib_physmem_free (vm, (void *) rxq->descs);
1505 if (rxq->n_enqueued)
1506 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1508 vec_free (rxq->bufs);
1511 vec_free (ad->rxqs);
1514 vec_foreach_index (i, ad->txqs)
1516 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1517 vlib_physmem_free (vm, (void *) txq->descs);
1518 if (txq->n_enqueued)
1520 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1521 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1524 /* Free the placeholder buffer */
1525 vlib_buffer_free (vm, txq->ph_bufs, vec_len (txq->ph_bufs));
1526 vec_free (txq->ph_bufs);
1527 vec_free (txq->bufs);
1528 clib_ring_free (txq->rs_slots);
1529 vec_free (txq->tmp_bufs);
1530 vec_free (txq->tmp_descs);
1531 clib_spinlock_free (&txq->lock);
1534 vec_free (ad->txqs);
1535 vec_free (ad->name);
1537 clib_error_free (ad->error);
1538 dev_instance = ad->dev_instance;
1539 clib_memset (ad, 0, sizeof (*ad));
1540 pool_put_index (am->devices, dev_instance);
1545 avf_validate_queue_size (avf_create_if_args_t * args)
1547 clib_error_t *error = 0;
1549 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1550 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1552 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1553 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1555 args->rv = VNET_API_ERROR_INVALID_VALUE;
1557 clib_error_return (error, "queue size must not be greater than %u",
1561 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1562 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1564 args->rv = VNET_API_ERROR_INVALID_VALUE;
1566 clib_error_return (error, "queue size must not be smaller than %u",
1570 if ((args->rxq_size & (args->rxq_size - 1)) ||
1571 (args->txq_size & (args->txq_size - 1)))
1573 args->rv = VNET_API_ERROR_INVALID_VALUE;
1575 clib_error_return (error, "queue size must be a power of two");
1582 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1584 vnet_main_t *vnm = vnet_get_main ();
1585 avf_main_t *am = &avf_main;
1586 avf_device_t *ad, **adp;
1587 vlib_pci_dev_handle_t h;
1588 clib_error_t *error = 0;
1591 /* check input args */
1592 if (avf_validate_queue_size (args) != 0)
1596 pool_foreach (adp, am->devices) {
1597 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1599 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1601 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1602 &args->addr, "pci address in use");
1608 pool_get (am->devices, adp);
1609 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1610 CLIB_CACHE_LINE_BYTES);
1611 clib_memset (ad, 0, sizeof (avf_device_t));
1612 ad->dev_instance = adp - am->devices;
1613 ad->per_interface_next_index = ~0;
1614 ad->name = vec_dup (args->name);
1616 if (args->enable_elog)
1618 ad->flags |= AVF_DEVICE_F_ELOG;
1622 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1625 pool_put (am->devices, adp);
1627 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1629 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1633 ad->pci_dev_handle = h;
1634 ad->pci_addr = args->addr;
1635 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1637 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1639 if ((error = vlib_pci_bus_master_enable (vm, h)))
1642 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1645 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1647 CLIB_CACHE_LINE_BYTES,
1651 error = vlib_physmem_last_error (vm);
1655 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1658 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1660 CLIB_CACHE_LINE_BYTES,
1664 error = vlib_physmem_last_error (vm);
1668 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1671 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1673 CLIB_CACHE_LINE_BYTES,
1675 if (ad->atq_bufs == 0)
1677 error = vlib_physmem_last_error (vm);
1681 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1684 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1686 CLIB_CACHE_LINE_BYTES,
1688 if (ad->arq_bufs == 0)
1690 error = vlib_physmem_last_error (vm);
1694 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1697 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1698 ad->flags |= AVF_DEVICE_F_VA_DMA;
1700 if ((error = avf_device_init (vm, am, ad, args)))
1703 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1704 &avf_irq_0_handler)))
1707 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1708 &avf_irq_n_handler)))
1711 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1714 if ((error = vlib_pci_intr_enable (vm, h)))
1717 /* create interface */
1718 error = ethernet_register_interface (vnm, avf_device_class.index,
1719 ad->dev_instance, ad->hwaddr,
1720 &ad->hw_if_index, avf_flag_change);
1725 /* Indicate ability to support L3 DMAC filtering and
1726 * initialize interface to L3 non-promisc mode */
1727 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1728 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER |
1729 VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM |
1730 VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
1731 ethernet_set_flags (vnm, ad->hw_if_index,
1732 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1734 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1735 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1737 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1738 hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
1739 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1741 for (i = 0; i < ad->n_rx_queues; i++)
1744 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1745 VNET_HW_IF_RXQ_THREAD_ANY);
1747 if (ad->flags & AVF_DEVICE_F_RX_INT)
1749 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1750 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1752 ad->rxqs[i].queue_index = qi;
1755 for (i = 0; i < ad->n_tx_queues; i++)
1757 u32 qi = vnet_hw_if_register_tx_queue (vnm, ad->hw_if_index, i);
1758 ad->txqs[i].queue_index = qi;
1761 for (i = 0; i < vlib_get_n_threads (); i++)
1763 u32 qi = ad->txqs[i % ad->n_tx_queues].queue_index;
1764 vnet_hw_if_tx_queue_assign_thread (vnm, qi, i);
1767 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1769 if (pool_elts (am->devices) == 1)
1770 vlib_process_signal_event (vm, avf_process_node.index,
1771 AVF_PROCESS_EVENT_START, 0);
1776 avf_delete_if (vm, ad, /* with_barrier */ 0);
1777 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1778 args->error = clib_error_return (error, "pci-addr %U",
1779 format_vlib_pci_addr, &args->addr);
1780 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1783 static clib_error_t *
1784 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1786 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1787 avf_device_t *ad = avf_get_device (hi->dev_instance);
1788 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1790 if (ad->flags & AVF_DEVICE_F_ERROR)
1791 return clib_error_return (0, "device is in error state");
1795 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1796 VNET_HW_INTERFACE_FLAG_LINK_UP);
1797 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1801 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1802 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1807 static clib_error_t *
1808 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1809 vnet_hw_if_rx_mode mode)
1811 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1812 avf_device_t *ad = avf_get_device (hw->dev_instance);
1813 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1815 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1817 if (rxq->int_mode == 0)
1819 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1820 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1822 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1827 if (rxq->int_mode == 1)
1829 if (ad->n_rx_irqs != ad->n_rx_queues)
1830 return clib_error_return (0, "not enough interrupt lines");
1832 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1839 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1842 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1843 avf_device_t *ad = avf_get_device (hw->dev_instance);
1845 /* Shut off redirection */
1846 if (node_index == ~0)
1848 ad->per_interface_next_index = node_index;
1852 ad->per_interface_next_index =
1853 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1856 static clib_error_t *
1857 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1858 const u8 * address, u8 is_add)
1860 vlib_main_t *vm = vlib_get_main ();
1861 avf_process_req_t req;
1863 req.dev_instance = hw->dev_instance;
1864 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1865 req.is_add = is_add;
1866 clib_memcpy (req.eth_addr, address, 6);
1868 return avf_process_request (vm, &req);
1871 static char *avf_tx_func_error_strings[] = {
1873 foreach_avf_tx_func_error
1878 avf_clear_hw_interface_counters (u32 instance)
1880 avf_device_t *ad = avf_get_device (instance);
1881 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1882 &ad->eth_stats, sizeof (ad->eth_stats));
1886 avf_program_flow (u32 dev_instance, int is_add, u8 *rule, u32 rule_len,
1887 u8 *program_status, u32 status_len)
1889 vlib_main_t *vm = vlib_get_main ();
1890 avf_process_req_t req;
1892 req.dev_instance = dev_instance;
1893 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1894 req.is_add = is_add;
1896 req.rule_len = rule_len;
1897 req.program_status = program_status;
1898 req.status_len = status_len;
1900 return avf_process_request (vm, &req);
1904 VNET_DEVICE_CLASS (avf_device_class, ) = {
1905 .name = "Adaptive Virtual Function (AVF) interface",
1906 .clear_counters = avf_clear_hw_interface_counters,
1907 .format_device = format_avf_device,
1908 .format_device_name = format_avf_device_name,
1909 .admin_up_down_function = avf_interface_admin_up_down,
1910 .rx_mode_change_function = avf_interface_rx_mode_change,
1911 .rx_redirect_to_node = avf_set_interface_next_node,
1912 .mac_addr_add_del_function = avf_add_del_mac_address,
1913 .tx_function_n_errors = AVF_TX_N_ERROR,
1914 .tx_function_error_strings = avf_tx_func_error_strings,
1915 .flow_ops_function = avf_flow_ops_fn,
1920 avf_init (vlib_main_t * vm)
1922 avf_main_t *am = &avf_main;
1923 vlib_thread_main_t *tm = vlib_get_thread_main ();
1925 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1926 CLIB_CACHE_LINE_BYTES);
1932 VLIB_INIT_FUNCTION (avf_init) =
1934 .runs_after = VLIB_INITS ("pci_bus_init"),
1939 * fd.io coding-style-patch-verification: ON
1942 * eval: (c-set-style "gnu")