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 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
160 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
163 t0 = vlib_time_now (vm);
165 vlib_process_suspend (vm, suspend_time);
167 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
169 f64 t = vlib_time_now (vm) - t0;
170 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
172 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
173 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
181 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
182 if (d->flags & AVF_AQ_F_ERR)
183 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
184 "%d]", d->opcode, d->retval);
187 if (ad->flags & AVF_DEVICE_F_ELOG)
189 ELOG_TYPE_DECLARE (el) =
191 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
192 "datalen %d retval %d",
193 .format_args = "i4i2i2i2i2i2",
204 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
205 ed->dev_instance = ad->dev_instance;
206 ed->s_flags = dc.flags;
207 ed->r_flags = d->flags;
208 ed->opcode = dc.opcode;
209 ed->datalen = dc.datalen;
210 ed->retval = d->retval;
217 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
221 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
222 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
224 if (ad->flags & AVF_DEVICE_F_ELOG)
226 ELOG_TYPE_DECLARE (el) =
228 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
229 .format_args = "i4i4i4",
237 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
238 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);
296 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 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
305 txq = vec_elt_at_index (ad->txqs, qid);
306 txq->size = txq_size;
308 clib_spinlock_init (&txq->lock);
310 /* Prepare a placeholder buffer(s) to maintain a 1-1 relationship between
311 * bufs and descs when a context descriptor is added in descs. Worst case
312 * every second descriptor is context descriptor and due to b->ref_count
313 * being u8 we need one for each block of 510 descriptors */
315 n = (txq->size / 510) + 1;
316 vec_validate_aligned (txq->ph_bufs, n, CLIB_CACHE_LINE_BYTES);
318 if (!vlib_buffer_alloc_from_pool (vm, txq->ph_bufs, n, bpi))
319 return clib_error_return (0, "buffer allocation error");
321 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
322 sizeof (avf_tx_desc_t),
323 2 * CLIB_CACHE_LINE_BYTES,
326 return vlib_physmem_last_error (vm);
328 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
331 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
332 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
334 /* initialize ring of pending RS slots */
335 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
337 vec_validate_aligned (txq->tmp_descs, txq->size, CLIB_CACHE_LINE_BYTES);
338 vec_validate_aligned (txq->tmp_bufs, txq->size, CLIB_CACHE_LINE_BYTES);
347 } virtchnl_promisc_info_t;
350 avf_arq_slot_init (avf_device_t * ad, u16 slot)
353 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
355 clib_memset (d, 0, sizeof (avf_aq_desc_t));
356 d->flags = AVF_AQ_F_BUF;
357 d->datalen = AVF_MBOX_BUF_SZ;
358 d->addr_hi = (u32) (pa >> 32);
359 d->addr_lo = (u32) pa;
363 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
365 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
366 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
370 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
375 /* VF MailBox Transmit */
376 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
377 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
379 pa = avf_dma_addr (vm, ad, ad->atq);
380 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
381 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
382 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
383 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
384 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
386 /* VF MailBox Receive */
387 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
388 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
390 for (i = 0; i < AVF_MBOX_LEN; i++)
391 avf_arq_slot_init (ad, i);
393 pa = avf_dma_addr (vm, ad, ad->arq);
395 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
396 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
397 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
398 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
399 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
400 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
402 ad->atq_next_slot = 0;
403 ad->arq_next_slot = 0;
407 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
408 void *in, int in_len, void *out, int out_len)
411 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
413 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
415 /* adminq operations should be only done from process node after device
417 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
418 vlib_get_current_process_node_index (vm) == avf_process_node.index);
420 /* suppress interrupt in the next adminq receive slot
421 as we are going to wait for response
422 we only need interrupts when event is received */
423 d = &ad->arq[ad->arq_next_slot];
424 d->flags |= AVF_AQ_F_SI;
426 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
429 t0 = vlib_time_now (vm);
431 head = avf_get_u32 (ad->bar0, AVF_ARQH);
433 if (ad->arq_next_slot == head)
435 f64 t = vlib_time_now (vm) - t0;
436 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
438 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
439 return clib_error_return (0, "timeout");
441 vlib_process_suspend (vm, suspend_time);
446 d = &ad->arq[ad->arq_next_slot];
448 if (d->v_opcode == VIRTCHNL_OP_EVENT)
450 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
451 virtchnl_pf_event_t *e;
453 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
454 ((d->flags & AVF_AQ_F_BUF) == 0))
455 return clib_error_return (0, "event message error");
457 vec_add2 (ad->events, e, 1);
458 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
459 avf_arq_slot_init (ad, ad->arq_next_slot);
462 t0 = vlib_time_now (vm);
463 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
467 if (d->v_opcode != op)
469 err = clib_error_return (0,
470 "unexpected message received [v_opcode = %u, "
471 "expected %u, v_retval %d]",
472 d->v_opcode, op, d->v_retval);
478 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
479 d->v_opcode, d->v_retval);
483 if (out_len && d->flags & AVF_AQ_F_BUF)
485 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
486 clib_memcpy_fast (out, buf, out_len);
489 avf_arq_slot_init (ad, ad->arq_next_slot);
490 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
492 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
496 if (ad->flags & AVF_DEVICE_F_ELOG)
498 ELOG_TYPE_DECLARE (el) =
500 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
501 .format_args = "i4t4i4i4",
502 .n_enum_strings = VIRTCHNL_N_OPS,
504 #define _(v, n) [v] = #n,
516 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
517 ed->dev_instance = ad->dev_instance;
519 ed->v_opcode_val = op;
520 ed->v_retval = d->v_retval;
526 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
527 virtchnl_version_info_t * ver)
529 clib_error_t *err = 0;
530 virtchnl_version_info_t myver = {
531 .major = VIRTCHNL_VERSION_MAJOR,
532 .minor = VIRTCHNL_VERSION_MINOR,
535 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
537 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
538 sizeof (virtchnl_version_info_t), ver,
539 sizeof (virtchnl_version_info_t));
548 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
549 virtchnl_vf_resource_t * res)
551 clib_error_t *err = 0;
552 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
553 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
554 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
555 VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_OFFLOAD_FDIR_PF |
556 VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF | VIRTCHNL_VF_OFFLOAD_VLAN_V2);
558 avf_log_debug (ad, "get_vf_resources: bitmap 0x%x (%U)", bitmap,
559 format_avf_vf_cap_flags, bitmap);
560 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
561 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
567 "get_vf_resources: num_vsis %u num_queue_pairs %u "
568 "max_vectors %u max_mtu %u vf_cap_flags 0x%x (%U) "
569 "rss_key_size %u rss_lut_size %u",
570 res->num_vsis, res->num_queue_pairs, res->max_vectors,
571 res->max_mtu, res->vf_cap_flags, format_avf_vf_cap_flags,
572 res->vf_cap_flags, res->rss_key_size, res->rss_lut_size);
573 for (i = 0; i < res->num_vsis; i++)
576 "get_vf_resources_vsi[%u]: vsi_id %u num_queue_pairs %u vsi_type %u "
577 "qset_handle %u default_mac_addr %U",
578 i, res->vsi_res[i].vsi_id, res->vsi_res[i].num_queue_pairs,
579 res->vsi_res[i].vsi_type, res->vsi_res[i].qset_handle,
580 format_ethernet_address, res->vsi_res[i].default_mac_addr);
587 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
589 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
592 virtchnl_rss_lut_t *rl;
594 clib_memset (msg, 0, msg_len);
595 rl = (virtchnl_rss_lut_t *) msg;
596 rl->vsi_id = ad->vsi_id;
597 rl->lut_entries = ad->rss_lut_size;
598 for (i = 0; i < ad->rss_lut_size; i++)
599 rl->lut[i] = i % ad->n_rx_queues;
601 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
602 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
603 rl->lut, rl->lut_entries);
605 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
610 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
612 /* from DPDK i40e... */
613 static uint32_t rss_key_default[] = { 0x6b793944, 0x23504cb5, 0x5bea75b6,
614 0x309f4f12, 0x3dc0a2b8, 0x024ddcdf,
615 0x339b8ca0, 0x4c4af64a, 0x34fac605,
616 0x55d85839, 0x3a58997d, 0x2ec938e1,
618 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
620 virtchnl_rss_key_t *rk;
622 if (sizeof (rss_key_default) != ad->rss_key_size)
623 return clib_error_create ("unsupported RSS key size (expected %d, got %d)",
624 sizeof (rss_key_default), ad->rss_key_size);
626 clib_memset (msg, 0, msg_len);
627 rk = (virtchnl_rss_key_t *) msg;
628 rk->vsi_id = ad->vsi_id;
629 rk->key_len = ad->rss_key_size;
630 memcpy_s (rk->key, rk->key_len, rss_key_default, sizeof (rss_key_default));
632 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
633 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
636 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
641 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
643 avf_log_debug (ad, "disable_vlan_stripping");
645 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
650 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
653 virtchnl_promisc_info_t pi = { 0 };
655 pi.vsi_id = ad->vsi_id;
658 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
660 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
661 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
662 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
664 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
665 sizeof (virtchnl_promisc_info_t), 0, 0);
670 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
673 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
674 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
675 sizeof (virtchnl_queue_pair_info_t);
677 virtchnl_vsi_queue_config_info_t *ci;
679 clib_memset (msg, 0, msg_len);
680 ci = (virtchnl_vsi_queue_config_info_t *) msg;
681 ci->vsi_id = ad->vsi_id;
682 ci->num_queue_pairs = n_qp;
684 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
685 ad->vsi_id, ci->num_queue_pairs);
687 for (i = 0; i < n_qp; i++)
689 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
690 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
692 rxq->vsi_id = ad->vsi_id;
694 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
695 if (i < vec_len (ad->rxqs))
697 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
698 rxq->ring_len = q->size;
699 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
700 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
701 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
703 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
704 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
705 i, rxq->max_pkt_size, rxq->ring_len,
706 rxq->databuffer_size, rxq->dma_ring_addr);
708 txq->vsi_id = ad->vsi_id;
710 if (i < vec_len (ad->txqs))
712 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
713 txq->ring_len = q->size;
714 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
716 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
717 "dma_ring_addr 0x%llx", i, txq->ring_len,
721 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
726 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
728 int msg_len = sizeof (virtchnl_irq_map_info_t) +
729 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
731 virtchnl_irq_map_info_t *imi;
733 clib_memset (msg, 0, msg_len);
734 imi = (virtchnl_irq_map_info_t *) msg;
735 imi->num_vectors = ad->n_rx_irqs;
737 for (int i = 0; i < ad->n_rx_irqs; i++)
739 imi->vecmap[i].vector_id = i + 1;
740 imi->vecmap[i].vsi_id = ad->vsi_id;
741 if (ad->n_rx_irqs == ad->n_rx_queues)
742 imi->vecmap[i].rxq_map = 1 << i;
744 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
746 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
747 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
748 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
752 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
757 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
758 u8 * macs, int is_add)
761 sizeof (virtchnl_ether_addr_list_t) +
762 count * sizeof (virtchnl_ether_addr_t);
764 virtchnl_ether_addr_list_t *al;
767 clib_memset (msg, 0, msg_len);
768 al = (virtchnl_ether_addr_list_t *) msg;
769 al->vsi_id = ad->vsi_id;
770 al->num_elements = count;
772 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
773 ad->vsi_id, al->num_elements, is_add);
775 for (i = 0; i < count; i++)
777 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
778 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
779 format_ethernet_address, &al->list[i].addr);
781 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
782 VIRTCHNL_OP_DEL_ETH_ADDR, msg, msg_len, 0, 0);
786 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
788 virtchnl_queue_select_t qs = { 0 };
790 qs.vsi_id = ad->vsi_id;
794 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
795 ad->vsi_id, qs.rx_queues, qs.tx_queues);
801 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
802 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
807 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
808 sizeof (virtchnl_queue_select_t), 0, 0);
812 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
813 virtchnl_eth_stats_t * es)
815 virtchnl_queue_select_t qs = { 0 };
817 qs.vsi_id = ad->vsi_id;
819 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS, &qs,
820 sizeof (virtchnl_queue_select_t), es,
821 sizeof (virtchnl_eth_stats_t));
823 avf_stats_log_debug (ad, "get_stats: vsi_id %u\n %U", ad->vsi_id,
824 format_avf_eth_stats, es);
830 avf_op_get_offload_vlan_v2_caps (vlib_main_t *vm, avf_device_t *ad,
831 virtchnl_vlan_caps_t *vc)
835 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, 0, 0, vc,
836 sizeof (virtchnl_vlan_caps_t));
838 avf_log_debug (ad, "get_offload_vlan_v2_caps:\n%U%U", format_white_space, 16,
839 format_avf_vlan_caps, vc);
845 avf_op_disable_vlan_stripping_v2 (vlib_main_t *vm, avf_device_t *ad, u32 outer,
848 virtchnl_vlan_setting_t vs = {
849 .outer_ethertype_setting = outer,
850 .inner_ethertype_setting = inner,
851 .vport_id = ad->vsi_id,
854 avf_log_debug (ad, "disable_vlan_stripping_v2: outer: %U, inner %U",
855 format_avf_vlan_support, outer, format_avf_vlan_support,
858 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2, &vs,
859 sizeof (virtchnl_vlan_setting_t), 0, 0);
863 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
865 avf_aq_desc_t d = { 0 };
868 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
870 avf_log_debug (ad, "reset");
873 d.v_opcode = VIRTCHNL_OP_RESET_VF;
874 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
877 t0 = vlib_time_now (vm);
879 vlib_process_suspend (vm, suspend_time);
881 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
883 if (rstat == 2 || rstat == 3)
885 avf_log_debug (ad, "reset completed in %.3fs", t);
889 t = vlib_time_now (vm) - t0;
890 if (t > AVF_RESET_MAX_WAIT_TIME)
892 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
893 return clib_error_return (0, "reset failed (timeout)");
901 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
903 virtchnl_vf_res_request_t res_req = { 0 };
906 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
908 res_req.num_queue_pairs = num_queue_pairs;
910 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
912 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
913 sizeof (virtchnl_vf_res_request_t), &res_req,
914 sizeof (virtchnl_vf_res_request_t));
917 * if PF responds, the request failed
918 * else PF initializes restart and avf_send_to_pf returns an error
922 return clib_error_return (0, "requested more than %u queue pairs",
923 res_req.num_queue_pairs);
926 t0 = vlib_time_now (vm);
928 vlib_process_suspend (vm, suspend_time);
929 t = vlib_time_now (vm) - t0;
931 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
933 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
936 if (t > AVF_RESET_MAX_WAIT_TIME)
938 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
939 return clib_error_return (0, "request queues failed (timeout)");
950 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
951 avf_create_if_args_t * args)
953 virtchnl_version_info_t ver = { 0 };
954 virtchnl_vf_resource_t res = { 0 };
957 u16 rxq_num, txq_num;
959 avf_adminq_init (vm, ad);
961 rxq_num = args->rxq_num ? args->rxq_num : 1;
962 txq_num = args->txq_num ? args->txq_num : vlib_get_n_threads ();
964 if ((error = avf_request_queues (vm, ad, clib_max (txq_num, rxq_num))))
966 /* we failed to get more queues, but still we want to proceed */
967 clib_error_free (error);
969 if ((error = avf_device_reset (vm, ad)))
973 avf_adminq_init (vm, ad);
978 if ((error = avf_op_version (vm, ad, &ver)))
981 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
982 ver.minor != VIRTCHNL_VERSION_MINOR)
983 return clib_error_return (0, "incompatible protocol version "
984 "(remote %d.%d)", ver.major, ver.minor);
987 * OP_GET_VF_RESOURCES
989 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
992 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
993 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
995 ad->vsi_id = res.vsi_res[0].vsi_id;
996 ad->cap_flags = res.vf_cap_flags;
997 ad->num_queue_pairs = res.num_queue_pairs;
998 ad->n_rx_queues = clib_min (rxq_num, res.num_queue_pairs);
999 ad->n_tx_queues = clib_min (txq_num, res.num_queue_pairs);
1000 ad->max_vectors = res.max_vectors;
1001 ad->max_mtu = res.max_mtu;
1002 ad->rss_key_size = res.rss_key_size;
1003 ad->rss_lut_size = res.rss_lut_size;
1004 ad->n_rx_irqs = ad->max_vectors > ad->n_rx_queues ? ad->n_rx_queues : 1;
1006 if (ad->max_vectors > ad->n_rx_queues)
1007 ad->flags |= AVF_DEVICE_F_RX_INT;
1009 wb_on_itr = (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
1011 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
1013 if (args->rxq_num != 0 && ad->n_rx_queues != args->rxq_num)
1014 return clib_error_return (0,
1015 "Number of requested RX queues (%u) is "
1016 "higher than mumber of available queues (%u)",
1017 args->rxq_num, ad->num_queue_pairs);
1019 if (args->txq_num != 0 && ad->n_tx_queues != args->txq_num)
1020 return clib_error_return (0,
1021 "Number of requested TX queues (%u) is "
1022 "higher than mumber of available queues (%u)",
1023 args->txq_num, ad->num_queue_pairs);
1026 * Disable VLAN stripping
1028 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2)
1030 virtchnl_vlan_caps_t vc = {};
1031 u32 outer = VIRTCHNL_VLAN_UNSUPPORTED, inner = VIRTCHNL_VLAN_UNSUPPORTED;
1032 u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
1034 if ((error = avf_op_get_offload_vlan_v2_caps (vm, ad, &vc)))
1037 outer = vc.offloads.stripping_support.outer & mask;
1038 inner = vc.offloads.stripping_support.inner & mask;
1040 /* Check for ability to modify the VLAN setting */
1042 vc.offloads.stripping_support.outer & VIRTCHNL_VLAN_TOGGLE ? outer : 0;
1044 vc.offloads.stripping_support.inner & VIRTCHNL_VLAN_TOGGLE ? inner : 0;
1046 if ((outer || inner) &&
1047 (error = avf_op_disable_vlan_stripping_v2 (vm, ad, outer, inner)))
1050 else if ((error = avf_op_disable_vlan_stripping (vm, ad)))
1056 for (i = 0; i < ad->n_rx_queues; i++)
1057 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
1060 for (i = 0; i < ad->n_tx_queues; i++)
1061 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
1064 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1065 (error = avf_op_config_rss_lut (vm, ad)))
1068 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1069 (error = avf_op_config_rss_key (vm, ad)))
1072 if ((error = avf_op_config_vsi_queues (vm, ad)))
1075 if ((error = avf_op_config_irq_map (vm, ad)))
1078 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1080 for (i = 0; i < ad->n_rx_irqs; i++)
1081 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1082 AVF_IRQ_STATE_ENABLED);
1084 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1087 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1088 pow2_mask (ad->n_tx_queues))))
1091 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1096 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1098 vnet_main_t *vnm = vnet_get_main ();
1099 virtchnl_pf_event_t *e;
1102 if (ad->flags & AVF_DEVICE_F_ERROR)
1105 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1108 ASSERT (ad->error == 0);
1110 /* do not process device in reset state */
1111 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1112 if (r != VIRTCHNL_VFR_VFACTIVE)
1115 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1116 if ((r & 0xf0000000) != (1ULL << 31))
1118 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1119 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1123 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1124 if ((r & 0xf0000000) != (1ULL << 31))
1126 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1127 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1132 avf_op_get_stats (vm, ad, &ad->eth_stats);
1134 vec_foreach (e, ad->events)
1136 avf_log_debug (ad, "event: %s (%u) sev %d",
1137 virtchnl_event_names[e->event], e->event, e->severity);
1138 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1141 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1145 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1146 link_up = e->event_data.link_event_adv.link_status;
1148 link_up = e->event_data.link_event.link_status;
1150 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1151 mbps = e->event_data.link_event_adv.link_speed;
1152 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1154 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1156 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1158 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1160 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1162 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1164 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1167 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1170 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1172 ad->flags |= AVF_DEVICE_F_LINK_UP;
1173 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1174 VNET_HW_INTERFACE_FLAG_LINK_UP);
1175 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1176 vnet_hw_interface_set_link_speed (
1177 vnm, ad->hw_if_index,
1178 (mbps == UINT32_MAX) ? UINT32_MAX : mbps * 1000);
1179 ad->link_speed = mbps;
1181 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1183 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1187 if (ad->flags & AVF_DEVICE_F_ELOG)
1189 ELOG_TYPE_DECLARE (el) =
1191 .format = "avf[%d] link change: link_status %d "
1192 "link_speed %d mbps",
1193 .format_args = "i4i1i4",
1201 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1202 ed->dev_instance = ad->dev_instance;
1203 ed->link_status = link_up;
1204 ed->link_speed = mbps;
1209 if (ad->flags & AVF_DEVICE_F_ELOG)
1211 ELOG_TYPE_DECLARE (el) =
1213 .format = "avf[%d] unknown event: event %d severity %d",
1214 .format_args = "i4i4i1i1",
1222 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1223 ed->dev_instance = ad->dev_instance;
1224 ed->event = e->event;
1225 ed->severity = e->severity;
1229 vec_reset_length (ad->events);
1234 ad->flags |= AVF_DEVICE_F_ERROR;
1235 ASSERT (ad->error != 0);
1236 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1240 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1241 enum virthnl_adv_ops vc_op, u8 *rule, u32 rule_len,
1242 u8 *program_status, u32 status_len)
1246 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1251 case VIRTCHNL_ADV_OP_ADD_FDIR_FILTER:
1252 case VIRTCHNL_ADV_OP_DEL_FDIR_FILTER:
1254 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER : VIRTCHNL_OP_DEL_FDIR_FILTER;
1256 case VIRTCHNL_ADV_OP_ADD_RSS_CFG:
1257 case VIRTCHNL_ADV_OP_DEL_RSS_CFG:
1258 op = is_create ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
1261 return clib_error_return (0, "invalid virtchnl opcode");
1265 return avf_send_to_pf (vm, ad, op, rule, rule_len, program_status,
1270 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1272 avf_device_t *ad = avf_get_device (req->dev_instance);
1274 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1275 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1277 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1278 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1279 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1280 req->error = avf_op_program_flow (vm, ad, req->is_add, req->vc_op,
1281 req->rule, req->rule_len,
1282 req->program_status, req->status_len);
1284 clib_panic ("BUG: unknown avf proceess request type");
1286 if (req->calling_process_index != avf_process_node.index)
1287 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1290 static clib_error_t *
1291 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1293 uword *event_data = 0;
1294 req->calling_process_index = vlib_get_current_process_node_index (vm);
1296 if (req->calling_process_index != avf_process_node.index)
1298 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1299 AVF_PROCESS_EVENT_REQ, req);
1301 vlib_process_wait_for_event_or_clock (vm, 5.0);
1303 if (vlib_process_get_events (vm, &event_data) != 0)
1304 clib_panic ("avf process node failed to reply in 5 seconds");
1305 vec_free (event_data);
1308 avf_process_handle_request (vm, req);
1314 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1316 avf_process_req_t req;
1317 vlib_main_t *vm = vlib_get_main ();
1318 avf_device_t *ad = avf_get_device (hw->dev_instance);
1323 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1324 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1326 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1327 ad->flags |= AVF_DEVICE_F_PROMISC;
1333 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1334 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1335 req.dev_instance = hw->dev_instance;
1337 if ((err = avf_process_request (vm, &req)))
1339 avf_log_err (ad, "error: %U", format_clib_error, err);
1340 clib_error_free (err);
1347 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1349 avf_main_t *am = &avf_main;
1350 uword *event_data = 0, event_type;
1351 int enabled = 0, irq;
1352 f64 last_run_duration = 0;
1353 f64 last_periodic_time = 0;
1354 avf_device_t **dev_pointers = 0;
1360 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1362 vlib_process_wait_for_event (vm);
1364 event_type = vlib_process_get_events (vm, &event_data);
1370 last_periodic_time = vlib_time_now (vm);
1372 case AVF_PROCESS_EVENT_START:
1375 case AVF_PROCESS_EVENT_DELETE_IF:
1376 for (int i = 0; i < vec_len (event_data); i++)
1378 avf_device_t *ad = avf_get_device (event_data[i]);
1379 avf_delete_if (vm, ad, /* with_barrier */ 1);
1381 if (pool_elts (am->devices) < 1)
1384 case AVF_PROCESS_EVENT_AQ_INT:
1387 case AVF_PROCESS_EVENT_REQ:
1388 for (int i = 0; i < vec_len (event_data); i++)
1389 avf_process_handle_request (vm, (void *) event_data[i]);
1396 vec_reset_length (event_data);
1401 /* create local list of device pointers as device pool may grow
1403 vec_reset_length (dev_pointers);
1404 pool_foreach_index (i, am->devices)
1406 vec_add1 (dev_pointers, avf_get_device (i));
1409 vec_foreach_index (i, dev_pointers)
1411 avf_process_one_device (vm, dev_pointers[i], irq);
1413 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1418 VLIB_REGISTER_NODE (avf_process_node) = {
1419 .function = avf_process,
1420 .type = VLIB_NODE_TYPE_PROCESS,
1421 .name = "avf-process",
1425 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1427 uword pd = vlib_pci_get_private_data (vm, h);
1428 avf_device_t *ad = avf_get_device (pd);
1431 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1433 if (ad->flags & AVF_DEVICE_F_ELOG)
1435 ELOG_TYPE_DECLARE (el) =
1437 .format = "avf[%d] irq 0: icr0 0x%x",
1438 .format_args = "i4i4",
1446 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1447 ed->dev_instance = ad->dev_instance;
1451 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1453 /* bit 30 - Send/Receive Admin queue interrupt indication */
1454 if (icr0 & (1 << 30))
1455 vlib_process_signal_event (vm, avf_process_node.index,
1456 AVF_PROCESS_EVENT_AQ_INT, 0);
1460 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1462 vnet_main_t *vnm = vnet_get_main ();
1463 uword pd = vlib_pci_get_private_data (vm, h);
1464 avf_device_t *ad = avf_get_device (pd);
1465 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1467 if (ad->flags & AVF_DEVICE_F_ELOG)
1469 ELOG_TYPE_DECLARE (el) =
1471 .format = "avf[%d] irq %d: received",
1472 .format_args = "i4i2",
1480 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1481 ed->dev_instance = ad->dev_instance;
1487 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1488 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1489 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1493 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1495 vnet_main_t *vnm = vnet_get_main ();
1496 avf_main_t *am = &avf_main;
1500 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1502 if (ad->hw_if_index)
1505 vlib_worker_thread_barrier_sync (vm);
1506 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1507 ethernet_delete_interface (vnm, ad->hw_if_index);
1509 vlib_worker_thread_barrier_release (vm);
1512 vlib_pci_device_close (vm, ad->pci_dev_handle);
1514 vlib_physmem_free (vm, ad->atq);
1515 vlib_physmem_free (vm, ad->arq);
1516 vlib_physmem_free (vm, ad->atq_bufs);
1517 vlib_physmem_free (vm, ad->arq_bufs);
1519 vec_foreach_index (i, ad->rxqs)
1521 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1522 vlib_physmem_free (vm, (void *) rxq->descs);
1523 if (rxq->n_enqueued)
1524 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1526 vec_free (rxq->bufs);
1528 vec_free (ad->rxqs);
1530 vec_foreach_index (i, ad->txqs)
1532 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1533 vlib_physmem_free (vm, (void *) txq->descs);
1534 if (txq->n_enqueued)
1536 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1537 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1540 /* Free the placeholder buffer */
1541 vlib_buffer_free (vm, txq->ph_bufs, vec_len (txq->ph_bufs));
1542 vec_free (txq->ph_bufs);
1543 vec_free (txq->bufs);
1544 clib_ring_free (txq->rs_slots);
1545 vec_free (txq->tmp_bufs);
1546 vec_free (txq->tmp_descs);
1547 clib_spinlock_free (&txq->lock);
1549 vec_free (ad->txqs);
1550 vec_free (ad->name);
1552 clib_error_free (ad->error);
1553 dev_instance = ad->dev_instance;
1554 clib_memset (ad, 0, sizeof (*ad));
1555 pool_put_index (am->devices, dev_instance);
1560 avf_validate_queue_size (avf_create_if_args_t * args)
1562 clib_error_t *error = 0;
1564 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1565 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1567 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1568 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1570 args->rv = VNET_API_ERROR_INVALID_VALUE;
1572 clib_error_return (error, "queue size must not be greater than %u",
1576 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1577 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1579 args->rv = VNET_API_ERROR_INVALID_VALUE;
1581 clib_error_return (error, "queue size must not be smaller than %u",
1585 if ((args->rxq_size & (args->rxq_size - 1)) ||
1586 (args->txq_size & (args->txq_size - 1)))
1588 args->rv = VNET_API_ERROR_INVALID_VALUE;
1590 clib_error_return (error, "queue size must be a power of two");
1597 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1599 vnet_main_t *vnm = vnet_get_main ();
1600 vnet_eth_interface_registration_t eir = {};
1601 avf_main_t *am = &avf_main;
1602 avf_device_t *ad, **adp;
1603 vlib_pci_dev_handle_t h;
1604 clib_error_t *error = 0;
1607 /* check input args */
1608 if (avf_validate_queue_size (args) != 0)
1611 pool_foreach (adp, am->devices) {
1612 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1614 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1616 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1617 &args->addr, "pci address in use");
1622 pool_get (am->devices, adp);
1623 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1624 CLIB_CACHE_LINE_BYTES);
1625 clib_memset (ad, 0, sizeof (avf_device_t));
1626 ad->dev_instance = adp - am->devices;
1627 ad->per_interface_next_index = ~0;
1628 ad->name = vec_dup (args->name);
1630 if (args->enable_elog)
1632 ad->flags |= AVF_DEVICE_F_ELOG;
1636 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1639 pool_put (am->devices, adp);
1641 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1643 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1647 ad->pci_dev_handle = h;
1648 ad->pci_addr = args->addr;
1649 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1651 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1653 if ((error = vlib_pci_bus_master_enable (vm, h)))
1656 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1659 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1661 CLIB_CACHE_LINE_BYTES,
1665 error = vlib_physmem_last_error (vm);
1669 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1672 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1674 CLIB_CACHE_LINE_BYTES,
1678 error = vlib_physmem_last_error (vm);
1682 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1685 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1687 CLIB_CACHE_LINE_BYTES,
1689 if (ad->atq_bufs == 0)
1691 error = vlib_physmem_last_error (vm);
1695 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1698 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1700 CLIB_CACHE_LINE_BYTES,
1702 if (ad->arq_bufs == 0)
1704 error = vlib_physmem_last_error (vm);
1708 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1711 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1712 ad->flags |= AVF_DEVICE_F_VA_DMA;
1714 if ((error = avf_device_init (vm, am, ad, args)))
1717 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1718 &avf_irq_0_handler)))
1721 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1722 &avf_irq_n_handler)))
1725 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1728 if ((error = vlib_pci_intr_enable (vm, h)))
1731 /* create interface */
1732 eir.dev_class_index = avf_device_class.index;
1733 eir.dev_instance = ad->dev_instance;
1734 eir.address = ad->hwaddr;
1735 eir.cb.flag_change = avf_flag_change;
1736 ad->hw_if_index = vnet_eth_register_interface (vnm, &eir);
1738 ethernet_set_flags (vnm, ad->hw_if_index,
1739 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1741 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1742 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1744 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1746 /* set hw interface caps */
1747 vnet_hw_if_set_caps (vnm, ad->hw_if_index,
1748 VNET_HW_IF_CAP_INT_MODE | VNET_HW_IF_CAP_MAC_FILTER |
1749 VNET_HW_IF_CAP_TX_CKSUM | VNET_HW_IF_CAP_TCP_GSO);
1751 for (i = 0; i < ad->n_rx_queues; i++)
1754 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1755 VNET_HW_IF_RXQ_THREAD_ANY);
1757 if (ad->flags & AVF_DEVICE_F_RX_INT)
1759 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1760 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1762 ad->rxqs[i].queue_index = qi;
1765 for (i = 0; i < ad->n_tx_queues; i++)
1767 u32 qi = vnet_hw_if_register_tx_queue (vnm, ad->hw_if_index, i);
1768 ad->txqs[i].queue_index = qi;
1771 for (i = 0; i < vlib_get_n_threads (); i++)
1773 u32 qi = ad->txqs[i % ad->n_tx_queues].queue_index;
1774 vnet_hw_if_tx_queue_assign_thread (vnm, qi, i);
1777 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1779 if (pool_elts (am->devices) == 1)
1780 vlib_process_signal_event (vm, avf_process_node.index,
1781 AVF_PROCESS_EVENT_START, 0);
1786 avf_delete_if (vm, ad, /* with_barrier */ 0);
1787 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1788 args->error = clib_error_return (error, "pci-addr %U",
1789 format_vlib_pci_addr, &args->addr);
1790 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1793 static clib_error_t *
1794 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1796 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1797 avf_device_t *ad = avf_get_device (hi->dev_instance);
1798 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1800 if (ad->flags & AVF_DEVICE_F_ERROR)
1801 return clib_error_return (0, "device is in error state");
1805 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1806 VNET_HW_INTERFACE_FLAG_LINK_UP);
1807 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1811 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1812 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1817 static clib_error_t *
1818 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1819 vnet_hw_if_rx_mode mode)
1821 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1822 avf_device_t *ad = avf_get_device (hw->dev_instance);
1823 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1825 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1827 if (rxq->int_mode == 0)
1829 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1830 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1832 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1837 if (rxq->int_mode == 1)
1839 if (ad->n_rx_irqs != ad->n_rx_queues)
1840 return clib_error_return (0, "not enough interrupt lines");
1842 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1849 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1852 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1853 avf_device_t *ad = avf_get_device (hw->dev_instance);
1855 /* Shut off redirection */
1856 if (node_index == ~0)
1858 ad->per_interface_next_index = node_index;
1862 ad->per_interface_next_index =
1863 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1866 static clib_error_t *
1867 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1868 const u8 * address, u8 is_add)
1870 vlib_main_t *vm = vlib_get_main ();
1871 avf_process_req_t req;
1873 req.dev_instance = hw->dev_instance;
1874 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1875 req.is_add = is_add;
1876 clib_memcpy (req.eth_addr, address, 6);
1878 return avf_process_request (vm, &req);
1881 static char *avf_tx_func_error_strings[] = {
1883 foreach_avf_tx_func_error
1888 avf_clear_hw_interface_counters (u32 instance)
1890 avf_device_t *ad = avf_get_device (instance);
1891 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1892 &ad->eth_stats, sizeof (ad->eth_stats));
1896 avf_program_flow (u32 dev_instance, int is_add, enum virthnl_adv_ops vc_op,
1897 u8 *rule, u32 rule_len, u8 *program_status, u32 status_len)
1899 vlib_main_t *vm = vlib_get_main ();
1900 avf_process_req_t req;
1902 req.dev_instance = dev_instance;
1903 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1904 req.is_add = is_add;
1907 req.rule_len = rule_len;
1908 req.program_status = program_status;
1909 req.status_len = status_len;
1911 return avf_process_request (vm, &req);
1914 VNET_DEVICE_CLASS (avf_device_class, ) = {
1915 .name = "Adaptive Virtual Function (AVF) interface",
1916 .clear_counters = avf_clear_hw_interface_counters,
1917 .format_device = format_avf_device,
1918 .format_device_name = format_avf_device_name,
1919 .admin_up_down_function = avf_interface_admin_up_down,
1920 .rx_mode_change_function = avf_interface_rx_mode_change,
1921 .rx_redirect_to_node = avf_set_interface_next_node,
1922 .mac_addr_add_del_function = avf_add_del_mac_address,
1923 .tx_function_n_errors = AVF_TX_N_ERROR,
1924 .tx_function_error_strings = avf_tx_func_error_strings,
1925 .flow_ops_function = avf_flow_ops_fn,
1929 avf_init (vlib_main_t * vm)
1931 avf_main_t *am = &avf_main;
1932 vlib_thread_main_t *tm = vlib_get_thread_main ();
1934 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1935 CLIB_CACHE_LINE_BYTES);
1940 VLIB_INIT_FUNCTION (avf_init);