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>
27 #define AVF_MBOX_LEN 64
28 #define AVF_MBOX_BUF_SZ 4096
29 #define AVF_RXQ_SZ 512
30 #define AVF_TXQ_SZ 512
31 #define AVF_ITR_INT 250
33 #define PCI_VENDOR_ID_INTEL 0x8086
34 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
35 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
36 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
39 VLIB_REGISTER_LOG_CLASS (avf_log) = {
45 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
47 static pci_device_id_t avf_pci_device_ids[] = {
48 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
49 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
50 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
54 const static char *virtchnl_event_names[] = {
55 #define _(v, n) [v] = #n,
56 foreach_virtchnl_event_code
62 AVF_IRQ_STATE_DISABLED,
63 AVF_IRQ_STATE_ENABLED,
64 AVF_IRQ_STATE_WB_ON_ITR,
68 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
70 u32 dyn_ctl0 = 0, icr0_ena = 0;
72 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
74 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
75 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
78 if (state == AVF_IRQ_STATE_DISABLED)
84 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
86 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
87 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
88 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
89 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
91 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
92 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
97 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
102 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
105 if (state == AVF_IRQ_STATE_DISABLED)
108 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
109 if (state == AVF_IRQ_STATE_WB_ON_ITR)
111 /* minimal ITR interval, use ITR1 */
112 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
113 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
114 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
118 /* configured ITR interval, use ITR0 */
119 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
120 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
123 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
129 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
132 clib_error_t *err = 0;
133 avf_aq_desc_t *d, dc;
134 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
136 d = &ad->atq[ad->atq_next_slot];
137 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
138 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
144 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
145 d->addr_hi = (u32) (pa >> 32);
146 d->addr_lo = (u32) pa;
147 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
149 d->flags |= AVF_AQ_F_BUF;
152 if (ad->flags & AVF_DEVICE_F_ELOG)
153 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
155 CLIB_MEMORY_BARRIER ();
156 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
157 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
160 t0 = vlib_time_now (vm);
162 vlib_process_suspend (vm, suspend_time);
164 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
166 f64 t = vlib_time_now (vm) - t0;
167 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
169 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
170 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
178 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
179 if (d->flags & AVF_AQ_F_ERR)
180 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
181 "%d]", d->opcode, d->retval);
184 if (ad->flags & AVF_DEVICE_F_ELOG)
187 ELOG_TYPE_DECLARE (el) =
189 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
190 "datalen %d retval %d",
191 .format_args = "i4i2i2i2i2i2",
202 ed = ELOG_DATA (&vm->elog_main, el);
203 ed->dev_instance = ad->dev_instance;
204 ed->s_flags = dc.flags;
205 ed->r_flags = d->flags;
206 ed->opcode = dc.opcode;
207 ed->datalen = dc.datalen;
208 ed->retval = d->retval;
216 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
220 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
221 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
223 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 (&vm->elog_main, el);
238 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);
293 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
298 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 if (qid >= ad->num_queue_pairs)
307 qid = qid % ad->num_queue_pairs;
308 txq = vec_elt_at_index (ad->txqs, qid);
310 clib_spinlock_init (&txq->lock);
311 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
315 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
316 txq = vec_elt_at_index (ad->txqs, qid);
317 txq->size = txq_size;
320 /* Prepare a placeholder buffer to maintain a 1-1
321 relationship between bufs and descs when a context
322 descriptor is added in descs */
323 if (!vlib_buffer_alloc_from_pool
324 (vm, &txq->ctx_desc_placeholder_bi, 1, bpi))
325 return clib_error_return (0, "buffer allocation error");
327 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
328 sizeof (avf_tx_desc_t),
329 2 * CLIB_CACHE_LINE_BYTES,
332 return vlib_physmem_last_error (vm);
334 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
337 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
338 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
340 /* initialize ring of pending RS slots */
341 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
343 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
351 } virtchnl_promisc_info_t;
354 avf_arq_slot_init (avf_device_t * ad, u16 slot)
357 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
359 clib_memset (d, 0, sizeof (avf_aq_desc_t));
360 d->flags = AVF_AQ_F_BUF;
361 d->datalen = AVF_MBOX_BUF_SZ;
362 d->addr_hi = (u32) (pa >> 32);
363 d->addr_lo = (u32) pa;
367 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
369 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
370 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
374 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
379 /* VF MailBox Transmit */
380 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
381 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
383 pa = avf_dma_addr (vm, ad, ad->atq);
384 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
385 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
386 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
387 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
388 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
390 /* VF MailBox Receive */
391 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
392 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
394 for (i = 0; i < AVF_MBOX_LEN; i++)
395 avf_arq_slot_init (ad, i);
397 pa = avf_dma_addr (vm, ad, ad->arq);
399 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
400 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
401 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
402 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
403 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
404 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
406 ad->atq_next_slot = 0;
407 ad->arq_next_slot = 0;
411 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
412 void *in, int in_len, void *out, int out_len)
415 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
417 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
419 /* adminq operations should be only done from process node after device
421 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
422 vlib_get_current_process_node_index (vm) == avf_process_node.index);
424 /* suppress interrupt in the next adminq receive slot
425 as we are going to wait for response
426 we only need interrupts when event is received */
427 d = &ad->arq[ad->arq_next_slot];
428 d->flags |= AVF_AQ_F_SI;
430 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
433 t0 = vlib_time_now (vm);
435 head = avf_get_u32 (ad->bar0, AVF_ARQH);
437 if (ad->arq_next_slot == head)
439 f64 t = vlib_time_now (vm) - t0;
440 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
442 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
443 return clib_error_return (0, "timeout");
445 vlib_process_suspend (vm, suspend_time);
450 d = &ad->arq[ad->arq_next_slot];
452 if (d->v_opcode == VIRTCHNL_OP_EVENT)
454 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
455 virtchnl_pf_event_t *e;
457 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
458 ((d->flags & AVF_AQ_F_BUF) == 0))
459 return clib_error_return (0, "event message error");
461 vec_add2 (ad->events, e, 1);
462 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
463 avf_arq_slot_init (ad, ad->arq_next_slot);
466 t0 = vlib_time_now (vm);
467 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
471 if (d->v_opcode != op)
474 clib_error_return (0,
475 "unexpected message receiver [v_opcode = %u, "
476 "expected %u, v_retval %d]", d->v_opcode, op,
483 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
484 d->v_opcode, d->v_retval);
488 if (out_len && d->flags & AVF_AQ_F_BUF)
490 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
491 clib_memcpy_fast (out, buf, out_len);
494 avf_arq_slot_init (ad, ad->arq_next_slot);
495 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
497 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
501 if (ad->flags & AVF_DEVICE_F_ELOG)
504 ELOG_TYPE_DECLARE (el) =
506 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
507 .format_args = "i4t4i4i4",
508 .n_enum_strings = VIRTCHNL_N_OPS,
510 #define _(v, n) [v] = #n,
522 ed = ELOG_DATA (&vm->elog_main, el);
523 ed->dev_instance = ad->dev_instance;
525 ed->v_opcode_val = op;
526 ed->v_retval = d->v_retval;
533 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
534 virtchnl_version_info_t * ver)
536 clib_error_t *err = 0;
537 virtchnl_version_info_t myver = {
538 .major = VIRTCHNL_VERSION_MAJOR,
539 .minor = VIRTCHNL_VERSION_MINOR,
542 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
544 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
545 sizeof (virtchnl_version_info_t), ver,
546 sizeof (virtchnl_version_info_t));
555 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
556 virtchnl_vf_resource_t * res)
558 clib_error_t *err = 0;
560 (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
561 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
562 VIRTCHNL_VF_OFFLOAD_RX_POLLING | VIRTCHNL_VF_CAP_ADV_LINK_SPEED |
563 VIRTCHNL_VF_OFFLOAD_FDIR_PF | VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
565 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
566 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
567 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
572 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
573 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
574 "rss_key_size %u rss_lut_size %u",
575 res->num_vsis, res->num_queue_pairs, res->max_vectors,
576 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
578 for (i = 0; i < res->num_vsis; i++)
579 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
580 "num_queue_pairs %u vsi_type %u qset_handle %u "
581 "default_mac_addr %U", i,
582 res->vsi_res[i].vsi_id,
583 res->vsi_res[i].num_queue_pairs,
584 res->vsi_res[i].vsi_type,
585 res->vsi_res[i].qset_handle,
586 format_ethernet_address,
587 res->vsi_res[i].default_mac_addr);
594 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
596 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
599 virtchnl_rss_lut_t *rl;
601 clib_memset (msg, 0, msg_len);
602 rl = (virtchnl_rss_lut_t *) msg;
603 rl->vsi_id = ad->vsi_id;
604 rl->lut_entries = ad->rss_lut_size;
605 for (i = 0; i < ad->rss_lut_size; i++)
606 rl->lut[i] = i % ad->n_rx_queues;
608 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
609 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
610 rl->lut, rl->lut_entries);
612 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
617 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
619 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
622 virtchnl_rss_key_t *rk;
624 clib_memset (msg, 0, msg_len);
625 rk = (virtchnl_rss_key_t *) msg;
626 rk->vsi_id = ad->vsi_id;
627 rk->key_len = ad->rss_key_size;
628 u32 seed = random_default_seed ();
629 for (i = 0; i < ad->rss_key_size; i++)
630 rk->key[i] = (u8) random_u32 (&seed);
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 };
816 qs.vsi_id = ad->vsi_id;
818 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
820 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
821 &qs, sizeof (virtchnl_queue_select_t),
822 es, sizeof (virtchnl_eth_stats_t));
826 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
828 avf_aq_desc_t d = { 0 };
831 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
833 avf_log_debug (ad, "reset");
836 d.v_opcode = VIRTCHNL_OP_RESET_VF;
837 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
840 t0 = vlib_time_now (vm);
842 vlib_process_suspend (vm, suspend_time);
844 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
846 if (rstat == 2 || rstat == 3)
848 avf_log_debug (ad, "reset completed in %.3fs", t);
852 t = vlib_time_now (vm) - t0;
853 if (t > AVF_RESET_MAX_WAIT_TIME)
855 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
856 return clib_error_return (0, "reset failed (timeout)");
864 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
866 virtchnl_vf_res_request_t res_req = { 0 };
869 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
871 res_req.num_queue_pairs = num_queue_pairs;
873 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
875 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
876 sizeof (virtchnl_vf_res_request_t), &res_req,
877 sizeof (virtchnl_vf_res_request_t));
880 * if PF responds, the request failed
881 * else PF initializes restart and avf_send_to_pf returns an error
885 return clib_error_return (0, "requested more than %u queue pairs",
886 res_req.num_queue_pairs);
889 t0 = vlib_time_now (vm);
891 vlib_process_suspend (vm, suspend_time);
892 t = vlib_time_now (vm) - t0;
894 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
896 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
899 if (t > AVF_RESET_MAX_WAIT_TIME)
901 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
902 return clib_error_return (0, "request queues failed (timeout)");
913 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
914 avf_create_if_args_t * args)
916 virtchnl_version_info_t ver = { 0 };
917 virtchnl_vf_resource_t res = { 0 };
919 vlib_thread_main_t *tm = vlib_get_thread_main ();
922 avf_adminq_init (vm, ad);
924 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
927 /* we failed to get more queues, but still we want to proceed */
928 clib_error_free (error);
930 if ((error = avf_device_reset (vm, ad)))
934 avf_adminq_init (vm, ad);
939 if ((error = avf_op_version (vm, ad, &ver)))
942 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
943 ver.minor != VIRTCHNL_VERSION_MINOR)
944 return clib_error_return (0, "incompatible protocol version "
945 "(remote %d.%d)", ver.major, ver.minor);
948 * OP_GET_VF_RESOURCES
950 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
953 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
954 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
956 ad->vsi_id = res.vsi_res[0].vsi_id;
957 ad->feature_bitmap = res.vf_offload_flags;
958 ad->num_queue_pairs = res.num_queue_pairs;
959 ad->max_vectors = res.max_vectors;
960 ad->max_mtu = res.max_mtu;
961 ad->rss_key_size = res.rss_key_size;
962 ad->rss_lut_size = res.rss_lut_size;
963 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
965 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
968 * Disable VLAN stripping
970 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
976 if (args->rxq_num == 0)
980 else if (args->rxq_num > ad->num_queue_pairs)
982 args->rxq_num = ad->num_queue_pairs;
983 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
984 "Using %u rx queues.", args->rxq_num);
987 for (i = 0; i < args->rxq_num; i++)
988 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
991 for (i = 0; i < tm->n_vlib_mains; i++)
992 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
995 if (ad->max_vectors > ad->n_rx_queues)
997 ad->flags |= AVF_DEVICE_F_RX_INT;
998 ad->n_rx_irqs = args->rxq_num;
1004 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1005 (error = avf_op_config_rss_lut (vm, ad)))
1008 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1009 (error = avf_op_config_rss_key (vm, ad)))
1012 if ((error = avf_op_config_vsi_queues (vm, ad)))
1015 if ((error = avf_op_config_irq_map (vm, ad)))
1018 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1020 for (i = 0; i < ad->n_rx_irqs; i++)
1021 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1022 AVF_IRQ_STATE_ENABLED);
1024 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1027 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1028 pow2_mask (ad->n_tx_queues))))
1031 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1036 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1038 vnet_main_t *vnm = vnet_get_main ();
1039 virtchnl_pf_event_t *e;
1042 if (ad->flags & AVF_DEVICE_F_ERROR)
1045 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1048 ASSERT (ad->error == 0);
1050 /* do not process device in reset state */
1051 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1052 if (r != VIRTCHNL_VFR_VFACTIVE)
1055 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1056 if ((r & 0xf0000000) != (1ULL << 31))
1058 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1059 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1063 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1064 if ((r & 0xf0000000) != (1ULL << 31))
1066 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1067 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1072 avf_op_get_stats (vm, ad, &ad->eth_stats);
1075 vec_foreach (e, ad->events)
1077 avf_log_debug (ad, "event: %s (%u) sev %d",
1078 virtchnl_event_names[e->event], e->event, e->severity);
1079 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1082 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1086 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1087 link_up = e->event_data.link_event_adv.link_status;
1089 link_up = e->event_data.link_event.link_status;
1091 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1092 mbps = e->event_data.link_event_adv.link_speed;
1093 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1095 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1097 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1099 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1101 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1103 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1105 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1108 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1111 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1113 ad->flags |= AVF_DEVICE_F_LINK_UP;
1114 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1115 VNET_HW_INTERFACE_FLAG_LINK_UP);
1116 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1117 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1119 ad->link_speed = mbps;
1121 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1123 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1127 if (ad->flags & AVF_DEVICE_F_ELOG)
1129 ELOG_TYPE_DECLARE (el) =
1131 .format = "avf[%d] link change: link_status %d "
1132 "link_speed %d mbps",
1133 .format_args = "i4i1i4",
1141 ed = ELOG_DATA (&vm->elog_main, el);
1142 ed->dev_instance = ad->dev_instance;
1143 ed->link_status = link_up;
1144 ed->link_speed = mbps;
1149 if (ad->flags & AVF_DEVICE_F_ELOG)
1151 ELOG_TYPE_DECLARE (el) =
1153 .format = "avf[%d] unknown event: event %d severity %d",
1154 .format_args = "i4i4i1i1",
1162 ed = ELOG_DATA (&vm->elog_main, el);
1163 ed->dev_instance = ad->dev_instance;
1164 ed->event = e->event;
1165 ed->severity = e->severity;
1170 vec_reset_length (ad->events);
1175 ad->flags |= AVF_DEVICE_F_ERROR;
1176 ASSERT (ad->error != 0);
1177 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1181 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1182 u8 *rule, u32 rule_len, u8 *program_status,
1185 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1188 return avf_send_to_pf (vm, ad,
1189 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER :
1190 VIRTCHNL_OP_DEL_FDIR_FILTER,
1191 rule, rule_len, program_status, status_len);
1195 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1197 avf_device_t *ad = avf_get_device (req->dev_instance);
1199 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1200 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1202 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1203 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1204 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1206 avf_op_program_flow (vm, ad, req->is_add, req->rule, req->rule_len,
1207 req->program_status, req->status_len);
1209 clib_panic ("BUG: unknown avf proceess request type");
1211 if (req->calling_process_index != avf_process_node.index)
1212 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1215 static clib_error_t *
1216 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1218 uword *event_data = 0;
1219 req->calling_process_index = vlib_get_current_process_node_index (vm);
1221 if (req->calling_process_index != avf_process_node.index)
1223 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1224 AVF_PROCESS_EVENT_REQ, req);
1226 vlib_process_wait_for_event_or_clock (vm, 5.0);
1228 if (vlib_process_get_events (vm, &event_data) != 0)
1229 clib_panic ("avf process node failed to reply in 5 seconds");
1230 vec_free (event_data);
1233 avf_process_handle_request (vm, req);
1239 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1241 avf_process_req_t req;
1242 vlib_main_t *vm = vlib_get_main ();
1243 avf_device_t *ad = avf_get_device (hw->dev_instance);
1248 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1249 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1251 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1252 ad->flags |= AVF_DEVICE_F_PROMISC;
1258 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1259 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1260 req.dev_instance = hw->dev_instance;
1262 if ((err = avf_process_request (vm, &req)))
1264 avf_log_err (ad, "error: %U", format_clib_error, err);
1265 clib_error_free (err);
1272 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1274 avf_main_t *am = &avf_main;
1275 uword *event_data = 0, event_type;
1276 int enabled = 0, irq;
1277 f64 last_run_duration = 0;
1278 f64 last_periodic_time = 0;
1279 avf_device_t **dev_pointers = 0;
1285 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1287 vlib_process_wait_for_event (vm);
1289 event_type = vlib_process_get_events (vm, &event_data);
1295 last_periodic_time = vlib_time_now (vm);
1297 case AVF_PROCESS_EVENT_START:
1300 case AVF_PROCESS_EVENT_DELETE_IF:
1301 for (int i = 0; i < vec_len (event_data); i++)
1303 avf_device_t *ad = avf_get_device (event_data[i]);
1304 avf_delete_if (vm, ad, /* with_barrier */ 1);
1306 if (pool_elts (am->devices) < 1)
1309 case AVF_PROCESS_EVENT_AQ_INT:
1312 case AVF_PROCESS_EVENT_REQ:
1313 for (int i = 0; i < vec_len (event_data); i++)
1314 avf_process_handle_request (vm, (void *) event_data[i]);
1321 vec_reset_length (event_data);
1326 /* create local list of device pointers as device pool may grow
1328 vec_reset_length (dev_pointers);
1330 pool_foreach_index (i, am->devices)
1332 vec_add1 (dev_pointers, avf_get_device (i));
1335 vec_foreach_index (i, dev_pointers)
1337 avf_process_one_device (vm, dev_pointers[i], irq);
1340 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1346 VLIB_REGISTER_NODE (avf_process_node) = {
1347 .function = avf_process,
1348 .type = VLIB_NODE_TYPE_PROCESS,
1349 .name = "avf-process",
1354 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1356 uword pd = vlib_pci_get_private_data (vm, h);
1357 avf_device_t *ad = avf_get_device (pd);
1360 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1362 if (ad->flags & AVF_DEVICE_F_ELOG)
1365 ELOG_TYPE_DECLARE (el) =
1367 .format = "avf[%d] irq 0: icr0 0x%x",
1368 .format_args = "i4i4",
1377 ed = ELOG_DATA (&vm->elog_main, el);
1378 ed->dev_instance = ad->dev_instance;
1382 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1384 /* bit 30 - Send/Receive Admin queue interrupt indication */
1385 if (icr0 & (1 << 30))
1386 vlib_process_signal_event (vm, avf_process_node.index,
1387 AVF_PROCESS_EVENT_AQ_INT, 0);
1391 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1393 vnet_main_t *vnm = vnet_get_main ();
1394 uword pd = vlib_pci_get_private_data (vm, h);
1395 avf_device_t *ad = avf_get_device (pd);
1396 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1398 if (ad->flags & AVF_DEVICE_F_ELOG)
1401 ELOG_TYPE_DECLARE (el) =
1403 .format = "avf[%d] irq %d: received",
1404 .format_args = "i4i2",
1413 ed = ELOG_DATA (&vm->elog_main, el);
1414 ed->dev_instance = ad->dev_instance;
1420 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1421 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1422 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1426 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1428 vnet_main_t *vnm = vnet_get_main ();
1429 avf_main_t *am = &avf_main;
1432 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1434 if (ad->hw_if_index)
1437 vlib_worker_thread_barrier_sync (vm);
1438 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1439 ethernet_delete_interface (vnm, ad->hw_if_index);
1441 vlib_worker_thread_barrier_release (vm);
1444 vlib_pci_device_close (vm, ad->pci_dev_handle);
1446 vlib_physmem_free (vm, ad->atq);
1447 vlib_physmem_free (vm, ad->arq);
1448 vlib_physmem_free (vm, ad->atq_bufs);
1449 vlib_physmem_free (vm, ad->arq_bufs);
1452 vec_foreach_index (i, ad->rxqs)
1454 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1455 vlib_physmem_free (vm, (void *) rxq->descs);
1456 if (rxq->n_enqueued)
1457 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1459 vec_free (rxq->bufs);
1462 vec_free (ad->rxqs);
1465 vec_foreach_index (i, ad->txqs)
1467 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1468 vlib_physmem_free (vm, (void *) txq->descs);
1469 if (txq->n_enqueued)
1471 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1472 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1475 /* Free the placeholder buffer */
1476 vlib_buffer_free_one(vm, txq->ctx_desc_placeholder_bi);
1477 vec_free (txq->bufs);
1478 clib_ring_free (txq->rs_slots);
1481 vec_free (ad->txqs);
1482 vec_free (ad->name);
1484 clib_error_free (ad->error);
1485 clib_memset (ad, 0, sizeof (*ad));
1486 pool_put_index (am->devices, ad->dev_instance);
1491 avf_validate_queue_size (avf_create_if_args_t * args)
1493 clib_error_t *error = 0;
1495 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1496 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1498 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1499 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1501 args->rv = VNET_API_ERROR_INVALID_VALUE;
1503 clib_error_return (error, "queue size must not be greater than %u",
1507 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1508 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1510 args->rv = VNET_API_ERROR_INVALID_VALUE;
1512 clib_error_return (error, "queue size must not be smaller than %u",
1516 if ((args->rxq_size & (args->rxq_size - 1)) ||
1517 (args->txq_size & (args->txq_size - 1)))
1519 args->rv = VNET_API_ERROR_INVALID_VALUE;
1521 clib_error_return (error, "queue size must be a power of two");
1528 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1530 vnet_main_t *vnm = vnet_get_main ();
1531 avf_main_t *am = &avf_main;
1532 avf_device_t *ad, **adp;
1533 vlib_pci_dev_handle_t h;
1534 clib_error_t *error = 0;
1537 /* check input args */
1538 if (avf_validate_queue_size (args) != 0)
1542 pool_foreach (adp, am->devices) {
1543 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1545 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1547 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1548 &args->addr, "pci address in use");
1554 pool_get (am->devices, adp);
1555 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1556 CLIB_CACHE_LINE_BYTES);
1557 clib_memset (ad, 0, sizeof (avf_device_t));
1558 ad->dev_instance = adp - am->devices;
1559 ad->per_interface_next_index = ~0;
1560 ad->name = vec_dup (args->name);
1562 if (args->enable_elog)
1563 ad->flags |= AVF_DEVICE_F_ELOG;
1565 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1568 pool_put (am->devices, adp);
1570 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1572 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1576 ad->pci_dev_handle = h;
1577 ad->pci_addr = args->addr;
1578 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1580 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1582 if ((error = vlib_pci_bus_master_enable (vm, h)))
1585 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1588 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1590 CLIB_CACHE_LINE_BYTES,
1594 error = vlib_physmem_last_error (vm);
1598 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1601 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1603 CLIB_CACHE_LINE_BYTES,
1607 error = vlib_physmem_last_error (vm);
1611 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1614 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1616 CLIB_CACHE_LINE_BYTES,
1618 if (ad->atq_bufs == 0)
1620 error = vlib_physmem_last_error (vm);
1624 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1627 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1629 CLIB_CACHE_LINE_BYTES,
1631 if (ad->arq_bufs == 0)
1633 error = vlib_physmem_last_error (vm);
1637 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1640 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1641 ad->flags |= AVF_DEVICE_F_VA_DMA;
1643 if ((error = avf_device_init (vm, am, ad, args)))
1646 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1647 &avf_irq_0_handler)))
1650 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1651 &avf_irq_n_handler)))
1654 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1657 if ((error = vlib_pci_intr_enable (vm, h)))
1660 /* create interface */
1661 error = ethernet_register_interface (vnm, avf_device_class.index,
1662 ad->dev_instance, ad->hwaddr,
1663 &ad->hw_if_index, avf_flag_change);
1668 /* Indicate ability to support L3 DMAC filtering and
1669 * initialize interface to L3 non-promisc mode */
1670 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1671 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER |
1672 VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM |
1673 VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
1674 ethernet_set_flags (vnm, ad->hw_if_index,
1675 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1677 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1678 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1680 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1681 hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
1682 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1684 for (i = 0; i < ad->n_rx_queues; i++)
1687 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1688 VNET_HW_IF_RXQ_THREAD_ANY);
1690 if (ad->flags & AVF_DEVICE_F_RX_INT)
1692 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1693 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1695 ad->rxqs[i].queue_index = qi;
1697 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1699 if (pool_elts (am->devices) == 1)
1700 vlib_process_signal_event (vm, avf_process_node.index,
1701 AVF_PROCESS_EVENT_START, 0);
1706 avf_delete_if (vm, ad, /* with_barrier */ 0);
1707 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1708 args->error = clib_error_return (error, "pci-addr %U",
1709 format_vlib_pci_addr, &args->addr);
1710 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1713 static clib_error_t *
1714 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1716 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1717 avf_device_t *ad = avf_get_device (hi->dev_instance);
1718 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1720 if (ad->flags & AVF_DEVICE_F_ERROR)
1721 return clib_error_return (0, "device is in error state");
1725 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1726 VNET_HW_INTERFACE_FLAG_LINK_UP);
1727 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1731 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1732 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1737 static clib_error_t *
1738 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1739 vnet_hw_if_rx_mode mode)
1741 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1742 avf_device_t *ad = avf_get_device (hw->dev_instance);
1743 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1745 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1747 if (rxq->int_mode == 0)
1749 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1750 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1752 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1757 if (rxq->int_mode == 1)
1759 if (ad->n_rx_irqs != ad->n_rx_queues)
1760 return clib_error_return (0, "not enough interrupt lines");
1762 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1769 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1772 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1773 avf_device_t *ad = avf_get_device (hw->dev_instance);
1775 /* Shut off redirection */
1776 if (node_index == ~0)
1778 ad->per_interface_next_index = node_index;
1782 ad->per_interface_next_index =
1783 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1786 static clib_error_t *
1787 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1788 const u8 * address, u8 is_add)
1790 vlib_main_t *vm = vlib_get_main ();
1791 avf_process_req_t req;
1793 req.dev_instance = hw->dev_instance;
1794 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1795 req.is_add = is_add;
1796 clib_memcpy (req.eth_addr, address, 6);
1798 return avf_process_request (vm, &req);
1801 static char *avf_tx_func_error_strings[] = {
1803 foreach_avf_tx_func_error
1808 avf_clear_hw_interface_counters (u32 instance)
1810 avf_device_t *ad = avf_get_device (instance);
1811 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1812 &ad->eth_stats, sizeof (ad->eth_stats));
1816 avf_program_flow (u32 dev_instance, int is_add, u8 *rule, u32 rule_len,
1817 u8 *program_status, u32 status_len)
1819 vlib_main_t *vm = vlib_get_main ();
1820 avf_process_req_t req;
1822 req.dev_instance = dev_instance;
1823 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1824 req.is_add = is_add;
1826 req.rule_len = rule_len;
1827 req.program_status = program_status;
1828 req.status_len = status_len;
1830 return avf_process_request (vm, &req);
1834 VNET_DEVICE_CLASS (avf_device_class, ) = {
1835 .name = "Adaptive Virtual Function (AVF) interface",
1836 .clear_counters = avf_clear_hw_interface_counters,
1837 .format_device = format_avf_device,
1838 .format_device_name = format_avf_device_name,
1839 .admin_up_down_function = avf_interface_admin_up_down,
1840 .rx_mode_change_function = avf_interface_rx_mode_change,
1841 .rx_redirect_to_node = avf_set_interface_next_node,
1842 .mac_addr_add_del_function = avf_add_del_mac_address,
1843 .tx_function_n_errors = AVF_TX_N_ERROR,
1844 .tx_function_error_strings = avf_tx_func_error_strings,
1845 .flow_ops_function = avf_flow_ops_fn,
1850 avf_init (vlib_main_t * vm)
1852 avf_main_t *am = &avf_main;
1853 vlib_thread_main_t *tm = vlib_get_thread_main ();
1855 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1856 CLIB_CACHE_LINE_BYTES);
1862 VLIB_INIT_FUNCTION (avf_init) =
1864 .runs_after = VLIB_INITS ("pci_bus_init"),
1869 * fd.io coding-style-patch-verification: ON
1872 * eval: (c-set-style "gnu")