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)
186 ELOG_TYPE_DECLARE (el) =
188 .format = "avf[%d] aq enq: s_flags 0x%x r_flags 0x%x opcode 0x%x "
189 "datalen %d retval %d",
190 .format_args = "i4i2i2i2i2i2",
201 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
202 ed->dev_instance = ad->dev_instance;
203 ed->s_flags = dc.flags;
204 ed->r_flags = d->flags;
205 ed->opcode = dc.opcode;
206 ed->datalen = dc.datalen;
207 ed->retval = d->retval;
214 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
218 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
219 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
221 if (ad->flags & AVF_DEVICE_F_ELOG)
223 ELOG_TYPE_DECLARE (el) =
225 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
226 .format_args = "i4i4i4",
234 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
235 ed->dev_instance = ad->dev_instance;
243 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
249 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
250 rxq = vec_elt_at_index (ad->rxqs, qid);
251 rxq->size = rxq_size;
253 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
254 sizeof (avf_rx_desc_t),
255 2 * CLIB_CACHE_LINE_BYTES,
258 rxq->buffer_pool_index =
259 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
262 return vlib_physmem_last_error (vm);
264 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
267 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
268 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
269 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
271 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
272 rxq->buffer_pool_index);
275 return clib_error_return (0, "buffer allocation error");
277 rxq->n_enqueued = n_alloc;
278 avf_rx_desc_t *d = rxq->descs;
279 for (i = 0; i < n_alloc; i++)
281 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
282 if (ad->flags & AVF_DEVICE_F_VA_DMA)
283 d->qword[0] = vlib_buffer_get_va (b);
285 d->qword[0] = vlib_buffer_get_pa (vm, b);
289 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
294 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
298 u8 bpi = vlib_buffer_pool_get_default_for_numa (vm,
301 if (qid >= ad->num_queue_pairs)
303 qid = qid % ad->num_queue_pairs;
304 txq = vec_elt_at_index (ad->txqs, qid);
306 clib_spinlock_init (&txq->lock);
307 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
311 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
312 txq = vec_elt_at_index (ad->txqs, qid);
313 txq->size = txq_size;
316 /* Prepare a placeholder buffer to maintain a 1-1
317 relationship between bufs and descs when a context
318 descriptor is added in descs */
319 if (!vlib_buffer_alloc_from_pool
320 (vm, &txq->ctx_desc_placeholder_bi, 1, bpi))
321 return clib_error_return (0, "buffer allocation error");
323 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
324 sizeof (avf_tx_desc_t),
325 2 * CLIB_CACHE_LINE_BYTES,
328 return vlib_physmem_last_error (vm);
330 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
333 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
334 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
336 /* initialize ring of pending RS slots */
337 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
339 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
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)
470 clib_error_return (0,
471 "unexpected message receiver [v_opcode = %u, "
472 "expected %u, v_retval %d]", d->v_opcode, op,
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;
554 (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
555 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
556 VIRTCHNL_VF_OFFLOAD_RX_POLLING | VIRTCHNL_VF_CAP_ADV_LINK_SPEED |
557 VIRTCHNL_VF_OFFLOAD_FDIR_PF | VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
559 avf_log_debug (ad, "get_vf_reqources: bitmap 0x%x", bitmap);
560 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
561 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
566 avf_log_debug (ad, "get_vf_reqources: num_vsis %u num_queue_pairs %u "
567 "max_vectors %u max_mtu %u vf_offload_flags 0x%04x "
568 "rss_key_size %u rss_lut_size %u",
569 res->num_vsis, res->num_queue_pairs, res->max_vectors,
570 res->max_mtu, res->vf_offload_flags, res->rss_key_size,
572 for (i = 0; i < res->num_vsis; i++)
573 avf_log_debug (ad, "get_vf_reqources_vsi[%u]: vsi_id %u "
574 "num_queue_pairs %u vsi_type %u qset_handle %u "
575 "default_mac_addr %U", i,
576 res->vsi_res[i].vsi_id,
577 res->vsi_res[i].num_queue_pairs,
578 res->vsi_res[i].vsi_type,
579 res->vsi_res[i].qset_handle,
580 format_ethernet_address,
581 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 };
810 qs.vsi_id = ad->vsi_id;
812 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
814 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
815 &qs, sizeof (virtchnl_queue_select_t),
816 es, sizeof (virtchnl_eth_stats_t));
820 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
822 avf_aq_desc_t d = { 0 };
825 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
827 avf_log_debug (ad, "reset");
830 d.v_opcode = VIRTCHNL_OP_RESET_VF;
831 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
834 t0 = vlib_time_now (vm);
836 vlib_process_suspend (vm, suspend_time);
838 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
840 if (rstat == 2 || rstat == 3)
842 avf_log_debug (ad, "reset completed in %.3fs", t);
846 t = vlib_time_now (vm) - t0;
847 if (t > AVF_RESET_MAX_WAIT_TIME)
849 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
850 return clib_error_return (0, "reset failed (timeout)");
858 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
860 virtchnl_vf_res_request_t res_req = { 0 };
863 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
865 res_req.num_queue_pairs = num_queue_pairs;
867 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
869 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
870 sizeof (virtchnl_vf_res_request_t), &res_req,
871 sizeof (virtchnl_vf_res_request_t));
874 * if PF responds, the request failed
875 * else PF initializes restart and avf_send_to_pf returns an error
879 return clib_error_return (0, "requested more than %u queue pairs",
880 res_req.num_queue_pairs);
883 t0 = vlib_time_now (vm);
885 vlib_process_suspend (vm, suspend_time);
886 t = vlib_time_now (vm) - t0;
888 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
890 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
893 if (t > AVF_RESET_MAX_WAIT_TIME)
895 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
896 return clib_error_return (0, "request queues failed (timeout)");
907 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
908 avf_create_if_args_t * args)
910 virtchnl_version_info_t ver = { 0 };
911 virtchnl_vf_resource_t res = { 0 };
913 vlib_thread_main_t *tm = vlib_get_thread_main ();
916 avf_adminq_init (vm, ad);
918 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
921 /* we failed to get more queues, but still we want to proceed */
922 clib_error_free (error);
924 if ((error = avf_device_reset (vm, ad)))
928 avf_adminq_init (vm, ad);
933 if ((error = avf_op_version (vm, ad, &ver)))
936 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
937 ver.minor != VIRTCHNL_VERSION_MINOR)
938 return clib_error_return (0, "incompatible protocol version "
939 "(remote %d.%d)", ver.major, ver.minor);
942 * OP_GET_VF_RESOURCES
944 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
947 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
948 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
950 ad->vsi_id = res.vsi_res[0].vsi_id;
951 ad->feature_bitmap = res.vf_offload_flags;
952 ad->num_queue_pairs = res.num_queue_pairs;
953 ad->max_vectors = res.max_vectors;
954 ad->max_mtu = res.max_mtu;
955 ad->rss_key_size = res.rss_key_size;
956 ad->rss_lut_size = res.rss_lut_size;
957 wb_on_itr = (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
959 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
962 * Disable VLAN stripping
964 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
970 if (args->rxq_num == 0)
974 else if (args->rxq_num > ad->num_queue_pairs)
976 args->rxq_num = ad->num_queue_pairs;
977 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
978 "Using %u rx queues.", args->rxq_num);
981 for (i = 0; i < args->rxq_num; i++)
982 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
985 for (i = 0; i < tm->n_vlib_mains; i++)
986 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
989 if (ad->max_vectors > ad->n_rx_queues)
991 ad->flags |= AVF_DEVICE_F_RX_INT;
992 ad->n_rx_irqs = args->rxq_num;
998 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
999 (error = avf_op_config_rss_lut (vm, ad)))
1002 if ((ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1003 (error = avf_op_config_rss_key (vm, ad)))
1006 if ((error = avf_op_config_vsi_queues (vm, ad)))
1009 if ((error = avf_op_config_irq_map (vm, ad)))
1012 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1014 for (i = 0; i < ad->n_rx_irqs; i++)
1015 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1016 AVF_IRQ_STATE_ENABLED);
1018 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1021 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1022 pow2_mask (ad->n_tx_queues))))
1025 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1030 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1032 vnet_main_t *vnm = vnet_get_main ();
1033 virtchnl_pf_event_t *e;
1036 if (ad->flags & AVF_DEVICE_F_ERROR)
1039 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1042 ASSERT (ad->error == 0);
1044 /* do not process device in reset state */
1045 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1046 if (r != VIRTCHNL_VFR_VFACTIVE)
1049 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1050 if ((r & 0xf0000000) != (1ULL << 31))
1052 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1053 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1057 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1058 if ((r & 0xf0000000) != (1ULL << 31))
1060 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1061 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1066 avf_op_get_stats (vm, ad, &ad->eth_stats);
1069 vec_foreach (e, ad->events)
1071 avf_log_debug (ad, "event: %s (%u) sev %d",
1072 virtchnl_event_names[e->event], e->event, e->severity);
1073 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1076 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1080 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1081 link_up = e->event_data.link_event_adv.link_status;
1083 link_up = e->event_data.link_event.link_status;
1085 if (ad->feature_bitmap & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1086 mbps = e->event_data.link_event_adv.link_speed;
1087 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1089 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1091 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1093 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1095 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1097 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1099 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1102 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1105 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1107 ad->flags |= AVF_DEVICE_F_LINK_UP;
1108 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1109 VNET_HW_INTERFACE_FLAG_LINK_UP);
1110 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1111 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1113 ad->link_speed = mbps;
1115 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1117 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1121 if (ad->flags & AVF_DEVICE_F_ELOG)
1123 ELOG_TYPE_DECLARE (el) =
1125 .format = "avf[%d] link change: link_status %d "
1126 "link_speed %d mbps",
1127 .format_args = "i4i1i4",
1135 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1136 ed->dev_instance = ad->dev_instance;
1137 ed->link_status = link_up;
1138 ed->link_speed = mbps;
1143 if (ad->flags & AVF_DEVICE_F_ELOG)
1145 ELOG_TYPE_DECLARE (el) =
1147 .format = "avf[%d] unknown event: event %d severity %d",
1148 .format_args = "i4i4i1i1",
1156 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1157 ed->dev_instance = ad->dev_instance;
1158 ed->event = e->event;
1159 ed->severity = e->severity;
1164 vec_reset_length (ad->events);
1169 ad->flags |= AVF_DEVICE_F_ERROR;
1170 ASSERT (ad->error != 0);
1171 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1175 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1176 u8 *rule, u32 rule_len, u8 *program_status,
1179 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1182 return avf_send_to_pf (vm, ad,
1183 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER :
1184 VIRTCHNL_OP_DEL_FDIR_FILTER,
1185 rule, rule_len, program_status, status_len);
1189 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1191 avf_device_t *ad = avf_get_device (req->dev_instance);
1193 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1194 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1196 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1197 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1198 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1200 avf_op_program_flow (vm, ad, req->is_add, req->rule, req->rule_len,
1201 req->program_status, req->status_len);
1203 clib_panic ("BUG: unknown avf proceess request type");
1205 if (req->calling_process_index != avf_process_node.index)
1206 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1209 static clib_error_t *
1210 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1212 uword *event_data = 0;
1213 req->calling_process_index = vlib_get_current_process_node_index (vm);
1215 if (req->calling_process_index != avf_process_node.index)
1217 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1218 AVF_PROCESS_EVENT_REQ, req);
1220 vlib_process_wait_for_event_or_clock (vm, 5.0);
1222 if (vlib_process_get_events (vm, &event_data) != 0)
1223 clib_panic ("avf process node failed to reply in 5 seconds");
1224 vec_free (event_data);
1227 avf_process_handle_request (vm, req);
1233 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1235 avf_process_req_t req;
1236 vlib_main_t *vm = vlib_get_main ();
1237 avf_device_t *ad = avf_get_device (hw->dev_instance);
1242 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1243 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1245 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1246 ad->flags |= AVF_DEVICE_F_PROMISC;
1252 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1253 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1254 req.dev_instance = hw->dev_instance;
1256 if ((err = avf_process_request (vm, &req)))
1258 avf_log_err (ad, "error: %U", format_clib_error, err);
1259 clib_error_free (err);
1266 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1268 avf_main_t *am = &avf_main;
1269 uword *event_data = 0, event_type;
1270 int enabled = 0, irq;
1271 f64 last_run_duration = 0;
1272 f64 last_periodic_time = 0;
1273 avf_device_t **dev_pointers = 0;
1279 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1281 vlib_process_wait_for_event (vm);
1283 event_type = vlib_process_get_events (vm, &event_data);
1289 last_periodic_time = vlib_time_now (vm);
1291 case AVF_PROCESS_EVENT_START:
1294 case AVF_PROCESS_EVENT_DELETE_IF:
1295 for (int i = 0; i < vec_len (event_data); i++)
1297 avf_device_t *ad = avf_get_device (event_data[i]);
1298 avf_delete_if (vm, ad, /* with_barrier */ 1);
1300 if (pool_elts (am->devices) < 1)
1303 case AVF_PROCESS_EVENT_AQ_INT:
1306 case AVF_PROCESS_EVENT_REQ:
1307 for (int i = 0; i < vec_len (event_data); i++)
1308 avf_process_handle_request (vm, (void *) event_data[i]);
1315 vec_reset_length (event_data);
1320 /* create local list of device pointers as device pool may grow
1322 vec_reset_length (dev_pointers);
1324 pool_foreach_index (i, am->devices)
1326 vec_add1 (dev_pointers, avf_get_device (i));
1329 vec_foreach_index (i, dev_pointers)
1331 avf_process_one_device (vm, dev_pointers[i], irq);
1334 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1340 VLIB_REGISTER_NODE (avf_process_node) = {
1341 .function = avf_process,
1342 .type = VLIB_NODE_TYPE_PROCESS,
1343 .name = "avf-process",
1348 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1350 uword pd = vlib_pci_get_private_data (vm, h);
1351 avf_device_t *ad = avf_get_device (pd);
1354 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1356 if (ad->flags & AVF_DEVICE_F_ELOG)
1359 ELOG_TYPE_DECLARE (el) =
1361 .format = "avf[%d] irq 0: icr0 0x%x",
1362 .format_args = "i4i4",
1371 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1372 ed->dev_instance = ad->dev_instance;
1376 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1378 /* bit 30 - Send/Receive Admin queue interrupt indication */
1379 if (icr0 & (1 << 30))
1380 vlib_process_signal_event (vm, avf_process_node.index,
1381 AVF_PROCESS_EVENT_AQ_INT, 0);
1385 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1387 vnet_main_t *vnm = vnet_get_main ();
1388 uword pd = vlib_pci_get_private_data (vm, h);
1389 avf_device_t *ad = avf_get_device (pd);
1390 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1392 if (ad->flags & AVF_DEVICE_F_ELOG)
1395 ELOG_TYPE_DECLARE (el) =
1397 .format = "avf[%d] irq %d: received",
1398 .format_args = "i4i2",
1407 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1408 ed->dev_instance = ad->dev_instance;
1414 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1415 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1416 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1420 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1422 vnet_main_t *vnm = vnet_get_main ();
1423 avf_main_t *am = &avf_main;
1426 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1428 if (ad->hw_if_index)
1431 vlib_worker_thread_barrier_sync (vm);
1432 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1433 ethernet_delete_interface (vnm, ad->hw_if_index);
1435 vlib_worker_thread_barrier_release (vm);
1438 vlib_pci_device_close (vm, ad->pci_dev_handle);
1440 vlib_physmem_free (vm, ad->atq);
1441 vlib_physmem_free (vm, ad->arq);
1442 vlib_physmem_free (vm, ad->atq_bufs);
1443 vlib_physmem_free (vm, ad->arq_bufs);
1446 vec_foreach_index (i, ad->rxqs)
1448 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1449 vlib_physmem_free (vm, (void *) rxq->descs);
1450 if (rxq->n_enqueued)
1451 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1453 vec_free (rxq->bufs);
1456 vec_free (ad->rxqs);
1459 vec_foreach_index (i, ad->txqs)
1461 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1462 vlib_physmem_free (vm, (void *) txq->descs);
1463 if (txq->n_enqueued)
1465 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1466 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1469 /* Free the placeholder buffer */
1470 vlib_buffer_free_one(vm, txq->ctx_desc_placeholder_bi);
1471 vec_free (txq->bufs);
1472 clib_ring_free (txq->rs_slots);
1475 vec_free (ad->txqs);
1476 vec_free (ad->name);
1478 clib_error_free (ad->error);
1479 clib_memset (ad, 0, sizeof (*ad));
1480 pool_put_index (am->devices, ad->dev_instance);
1485 avf_validate_queue_size (avf_create_if_args_t * args)
1487 clib_error_t *error = 0;
1489 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1490 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1492 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1493 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1495 args->rv = VNET_API_ERROR_INVALID_VALUE;
1497 clib_error_return (error, "queue size must not be greater than %u",
1501 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1502 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1504 args->rv = VNET_API_ERROR_INVALID_VALUE;
1506 clib_error_return (error, "queue size must not be smaller than %u",
1510 if ((args->rxq_size & (args->rxq_size - 1)) ||
1511 (args->txq_size & (args->txq_size - 1)))
1513 args->rv = VNET_API_ERROR_INVALID_VALUE;
1515 clib_error_return (error, "queue size must be a power of two");
1522 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1524 vnet_main_t *vnm = vnet_get_main ();
1525 avf_main_t *am = &avf_main;
1526 avf_device_t *ad, **adp;
1527 vlib_pci_dev_handle_t h;
1528 clib_error_t *error = 0;
1531 /* check input args */
1532 if (avf_validate_queue_size (args) != 0)
1536 pool_foreach (adp, am->devices) {
1537 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1539 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1541 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1542 &args->addr, "pci address in use");
1548 pool_get (am->devices, adp);
1549 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1550 CLIB_CACHE_LINE_BYTES);
1551 clib_memset (ad, 0, sizeof (avf_device_t));
1552 ad->dev_instance = adp - am->devices;
1553 ad->per_interface_next_index = ~0;
1554 ad->name = vec_dup (args->name);
1556 if (args->enable_elog)
1557 ad->flags |= AVF_DEVICE_F_ELOG;
1559 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1562 pool_put (am->devices, adp);
1564 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1566 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1570 ad->pci_dev_handle = h;
1571 ad->pci_addr = args->addr;
1572 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1574 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1576 if ((error = vlib_pci_bus_master_enable (vm, h)))
1579 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1582 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1584 CLIB_CACHE_LINE_BYTES,
1588 error = vlib_physmem_last_error (vm);
1592 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1595 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1597 CLIB_CACHE_LINE_BYTES,
1601 error = vlib_physmem_last_error (vm);
1605 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1608 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1610 CLIB_CACHE_LINE_BYTES,
1612 if (ad->atq_bufs == 0)
1614 error = vlib_physmem_last_error (vm);
1618 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1621 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1623 CLIB_CACHE_LINE_BYTES,
1625 if (ad->arq_bufs == 0)
1627 error = vlib_physmem_last_error (vm);
1631 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1634 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1635 ad->flags |= AVF_DEVICE_F_VA_DMA;
1637 if ((error = avf_device_init (vm, am, ad, args)))
1640 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1641 &avf_irq_0_handler)))
1644 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1645 &avf_irq_n_handler)))
1648 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1651 if ((error = vlib_pci_intr_enable (vm, h)))
1654 /* create interface */
1655 error = ethernet_register_interface (vnm, avf_device_class.index,
1656 ad->dev_instance, ad->hwaddr,
1657 &ad->hw_if_index, avf_flag_change);
1662 /* Indicate ability to support L3 DMAC filtering and
1663 * initialize interface to L3 non-promisc mode */
1664 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1665 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER |
1666 VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM |
1667 VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
1668 ethernet_set_flags (vnm, ad->hw_if_index,
1669 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1671 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1672 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1674 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1675 hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
1676 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1678 for (i = 0; i < ad->n_rx_queues; i++)
1681 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1682 VNET_HW_IF_RXQ_THREAD_ANY);
1684 if (ad->flags & AVF_DEVICE_F_RX_INT)
1686 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1687 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1689 ad->rxqs[i].queue_index = qi;
1691 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1693 if (pool_elts (am->devices) == 1)
1694 vlib_process_signal_event (vm, avf_process_node.index,
1695 AVF_PROCESS_EVENT_START, 0);
1700 avf_delete_if (vm, ad, /* with_barrier */ 0);
1701 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1702 args->error = clib_error_return (error, "pci-addr %U",
1703 format_vlib_pci_addr, &args->addr);
1704 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1707 static clib_error_t *
1708 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1710 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1711 avf_device_t *ad = avf_get_device (hi->dev_instance);
1712 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1714 if (ad->flags & AVF_DEVICE_F_ERROR)
1715 return clib_error_return (0, "device is in error state");
1719 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1720 VNET_HW_INTERFACE_FLAG_LINK_UP);
1721 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1725 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1726 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1731 static clib_error_t *
1732 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1733 vnet_hw_if_rx_mode mode)
1735 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1736 avf_device_t *ad = avf_get_device (hw->dev_instance);
1737 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1739 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1741 if (rxq->int_mode == 0)
1743 if (ad->feature_bitmap & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1744 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1746 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1751 if (rxq->int_mode == 1)
1753 if (ad->n_rx_irqs != ad->n_rx_queues)
1754 return clib_error_return (0, "not enough interrupt lines");
1756 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1763 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1766 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1767 avf_device_t *ad = avf_get_device (hw->dev_instance);
1769 /* Shut off redirection */
1770 if (node_index == ~0)
1772 ad->per_interface_next_index = node_index;
1776 ad->per_interface_next_index =
1777 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1780 static clib_error_t *
1781 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1782 const u8 * address, u8 is_add)
1784 vlib_main_t *vm = vlib_get_main ();
1785 avf_process_req_t req;
1787 req.dev_instance = hw->dev_instance;
1788 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1789 req.is_add = is_add;
1790 clib_memcpy (req.eth_addr, address, 6);
1792 return avf_process_request (vm, &req);
1795 static char *avf_tx_func_error_strings[] = {
1797 foreach_avf_tx_func_error
1802 avf_clear_hw_interface_counters (u32 instance)
1804 avf_device_t *ad = avf_get_device (instance);
1805 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1806 &ad->eth_stats, sizeof (ad->eth_stats));
1810 avf_program_flow (u32 dev_instance, int is_add, u8 *rule, u32 rule_len,
1811 u8 *program_status, u32 status_len)
1813 vlib_main_t *vm = vlib_get_main ();
1814 avf_process_req_t req;
1816 req.dev_instance = dev_instance;
1817 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1818 req.is_add = is_add;
1820 req.rule_len = rule_len;
1821 req.program_status = program_status;
1822 req.status_len = status_len;
1824 return avf_process_request (vm, &req);
1828 VNET_DEVICE_CLASS (avf_device_class, ) = {
1829 .name = "Adaptive Virtual Function (AVF) interface",
1830 .clear_counters = avf_clear_hw_interface_counters,
1831 .format_device = format_avf_device,
1832 .format_device_name = format_avf_device_name,
1833 .admin_up_down_function = avf_interface_admin_up_down,
1834 .rx_mode_change_function = avf_interface_rx_mode_change,
1835 .rx_redirect_to_node = avf_set_interface_next_node,
1836 .mac_addr_add_del_function = avf_add_del_mac_address,
1837 .tx_function_n_errors = AVF_TX_N_ERROR,
1838 .tx_function_error_strings = avf_tx_func_error_strings,
1839 .flow_ops_function = avf_flow_ops_fn,
1844 avf_init (vlib_main_t * vm)
1846 avf_main_t *am = &avf_main;
1847 vlib_thread_main_t *tm = vlib_get_thread_main ();
1849 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1850 CLIB_CACHE_LINE_BYTES);
1856 VLIB_INIT_FUNCTION (avf_init) =
1858 .runs_after = VLIB_INITS ("pci_bus_init"),
1863 * fd.io coding-style-patch-verification: ON
1866 * eval: (c-set-style "gnu")