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)
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;
553 (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
554 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
555 VIRTCHNL_VF_OFFLOAD_RX_POLLING | VIRTCHNL_VF_CAP_ADV_LINK_SPEED |
556 VIRTCHNL_VF_OFFLOAD_FDIR_PF | VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
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 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
615 virtchnl_rss_key_t *rk;
617 clib_memset (msg, 0, msg_len);
618 rk = (virtchnl_rss_key_t *) msg;
619 rk->vsi_id = ad->vsi_id;
620 rk->key_len = ad->rss_key_size;
621 u32 seed = random_default_seed ();
622 for (i = 0; i < ad->rss_key_size; i++)
623 rk->key[i] = (u8) random_u32 (&seed);
625 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
626 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
629 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
634 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
636 avf_log_debug (ad, "disable_vlan_stripping");
638 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
643 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
646 virtchnl_promisc_info_t pi = { 0 };
648 pi.vsi_id = ad->vsi_id;
651 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
653 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
654 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
655 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
657 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
658 sizeof (virtchnl_promisc_info_t), 0, 0);
663 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
666 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
667 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
668 sizeof (virtchnl_queue_pair_info_t);
670 virtchnl_vsi_queue_config_info_t *ci;
672 clib_memset (msg, 0, msg_len);
673 ci = (virtchnl_vsi_queue_config_info_t *) msg;
674 ci->vsi_id = ad->vsi_id;
675 ci->num_queue_pairs = n_qp;
677 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
678 ad->vsi_id, ci->num_queue_pairs);
680 for (i = 0; i < n_qp; i++)
682 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
683 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
685 rxq->vsi_id = ad->vsi_id;
687 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
688 if (i < vec_len (ad->rxqs))
690 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
691 rxq->ring_len = q->size;
692 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
693 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
694 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
696 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
697 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
698 i, rxq->max_pkt_size, rxq->ring_len,
699 rxq->databuffer_size, rxq->dma_ring_addr);
701 txq->vsi_id = ad->vsi_id;
703 if (i < vec_len (ad->txqs))
705 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
706 txq->ring_len = q->size;
707 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
709 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
710 "dma_ring_addr 0x%llx", i, txq->ring_len,
714 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
719 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
721 int msg_len = sizeof (virtchnl_irq_map_info_t) +
722 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
724 virtchnl_irq_map_info_t *imi;
726 clib_memset (msg, 0, msg_len);
727 imi = (virtchnl_irq_map_info_t *) msg;
728 imi->num_vectors = ad->n_rx_irqs;
730 for (int i = 0; i < ad->n_rx_irqs; i++)
732 imi->vecmap[i].vector_id = i + 1;
733 imi->vecmap[i].vsi_id = ad->vsi_id;
734 if (ad->n_rx_irqs == ad->n_rx_queues)
735 imi->vecmap[i].rxq_map = 1 << i;
737 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
739 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
740 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
741 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
745 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
750 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
751 u8 * macs, int is_add)
754 sizeof (virtchnl_ether_addr_list_t) +
755 count * sizeof (virtchnl_ether_addr_t);
757 virtchnl_ether_addr_list_t *al;
760 clib_memset (msg, 0, msg_len);
761 al = (virtchnl_ether_addr_list_t *) msg;
762 al->vsi_id = ad->vsi_id;
763 al->num_elements = count;
765 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
766 ad->vsi_id, al->num_elements, is_add);
768 for (i = 0; i < count; i++)
770 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
771 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
772 format_ethernet_address, &al->list[i].addr);
774 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
775 VIRTCHNL_OP_DEL_ETH_ADDR, msg, msg_len, 0, 0);
779 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
781 virtchnl_queue_select_t qs = { 0 };
783 qs.vsi_id = ad->vsi_id;
787 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
788 ad->vsi_id, qs.rx_queues, qs.tx_queues);
794 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
795 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
800 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
801 sizeof (virtchnl_queue_select_t), 0, 0);
805 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
806 virtchnl_eth_stats_t * es)
808 virtchnl_queue_select_t qs = { 0 };
809 qs.vsi_id = ad->vsi_id;
811 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
813 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
814 &qs, sizeof (virtchnl_queue_select_t),
815 es, sizeof (virtchnl_eth_stats_t));
819 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
821 avf_aq_desc_t d = { 0 };
824 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
826 avf_log_debug (ad, "reset");
829 d.v_opcode = VIRTCHNL_OP_RESET_VF;
830 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
833 t0 = vlib_time_now (vm);
835 vlib_process_suspend (vm, suspend_time);
837 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
839 if (rstat == 2 || rstat == 3)
841 avf_log_debug (ad, "reset completed in %.3fs", t);
845 t = vlib_time_now (vm) - t0;
846 if (t > AVF_RESET_MAX_WAIT_TIME)
848 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
849 return clib_error_return (0, "reset failed (timeout)");
857 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
859 virtchnl_vf_res_request_t res_req = { 0 };
862 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
864 res_req.num_queue_pairs = num_queue_pairs;
866 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
868 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
869 sizeof (virtchnl_vf_res_request_t), &res_req,
870 sizeof (virtchnl_vf_res_request_t));
873 * if PF responds, the request failed
874 * else PF initializes restart and avf_send_to_pf returns an error
878 return clib_error_return (0, "requested more than %u queue pairs",
879 res_req.num_queue_pairs);
882 t0 = vlib_time_now (vm);
884 vlib_process_suspend (vm, suspend_time);
885 t = vlib_time_now (vm) - t0;
887 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
889 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
892 if (t > AVF_RESET_MAX_WAIT_TIME)
894 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
895 return clib_error_return (0, "request queues failed (timeout)");
906 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
907 avf_create_if_args_t * args)
909 virtchnl_version_info_t ver = { 0 };
910 virtchnl_vf_resource_t res = { 0 };
912 vlib_thread_main_t *tm = vlib_get_thread_main ();
915 avf_adminq_init (vm, ad);
917 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
920 /* we failed to get more queues, but still we want to proceed */
921 clib_error_free (error);
923 if ((error = avf_device_reset (vm, ad)))
927 avf_adminq_init (vm, ad);
932 if ((error = avf_op_version (vm, ad, &ver)))
935 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
936 ver.minor != VIRTCHNL_VERSION_MINOR)
937 return clib_error_return (0, "incompatible protocol version "
938 "(remote %d.%d)", ver.major, ver.minor);
941 * OP_GET_VF_RESOURCES
943 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
946 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
947 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
949 ad->vsi_id = res.vsi_res[0].vsi_id;
950 ad->cap_flags = res.vf_cap_flags;
951 ad->num_queue_pairs = res.num_queue_pairs;
952 ad->max_vectors = res.max_vectors;
953 ad->max_mtu = res.max_mtu;
954 ad->rss_key_size = res.rss_key_size;
955 ad->rss_lut_size = res.rss_lut_size;
956 wb_on_itr = (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
958 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
961 * Disable VLAN stripping
963 if ((error = avf_op_disable_vlan_stripping (vm, ad)))
969 if (args->rxq_num == 0)
973 else if (args->rxq_num > ad->num_queue_pairs)
975 args->rxq_num = ad->num_queue_pairs;
976 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
977 "Using %u rx queues.", args->rxq_num);
980 for (i = 0; i < args->rxq_num; i++)
981 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
984 for (i = 0; i < tm->n_vlib_mains; i++)
985 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
988 if (ad->max_vectors > ad->n_rx_queues)
990 ad->flags |= AVF_DEVICE_F_RX_INT;
991 ad->n_rx_irqs = args->rxq_num;
996 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
997 (error = avf_op_config_rss_lut (vm, ad)))
1000 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1001 (error = avf_op_config_rss_key (vm, ad)))
1004 if ((error = avf_op_config_vsi_queues (vm, ad)))
1007 if ((error = avf_op_config_irq_map (vm, ad)))
1010 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1012 for (i = 0; i < ad->n_rx_irqs; i++)
1013 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1014 AVF_IRQ_STATE_ENABLED);
1016 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1019 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1020 pow2_mask (ad->n_tx_queues))))
1023 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1028 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1030 vnet_main_t *vnm = vnet_get_main ();
1031 virtchnl_pf_event_t *e;
1034 if (ad->flags & AVF_DEVICE_F_ERROR)
1037 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1040 ASSERT (ad->error == 0);
1042 /* do not process device in reset state */
1043 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1044 if (r != VIRTCHNL_VFR_VFACTIVE)
1047 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1048 if ((r & 0xf0000000) != (1ULL << 31))
1050 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1051 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1055 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1056 if ((r & 0xf0000000) != (1ULL << 31))
1058 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1059 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1064 avf_op_get_stats (vm, ad, &ad->eth_stats);
1067 vec_foreach (e, ad->events)
1069 avf_log_debug (ad, "event: %s (%u) sev %d",
1070 virtchnl_event_names[e->event], e->event, e->severity);
1071 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1074 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1078 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1079 link_up = e->event_data.link_event_adv.link_status;
1081 link_up = e->event_data.link_event.link_status;
1083 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1084 mbps = e->event_data.link_event_adv.link_speed;
1085 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1087 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1089 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1091 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1093 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1095 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1097 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1100 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1103 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1105 ad->flags |= AVF_DEVICE_F_LINK_UP;
1106 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1107 VNET_HW_INTERFACE_FLAG_LINK_UP);
1108 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1109 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1111 ad->link_speed = mbps;
1113 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1115 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1119 if (ad->flags & AVF_DEVICE_F_ELOG)
1121 ELOG_TYPE_DECLARE (el) =
1123 .format = "avf[%d] link change: link_status %d "
1124 "link_speed %d mbps",
1125 .format_args = "i4i1i4",
1133 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1134 ed->dev_instance = ad->dev_instance;
1135 ed->link_status = link_up;
1136 ed->link_speed = mbps;
1141 if (ad->flags & AVF_DEVICE_F_ELOG)
1143 ELOG_TYPE_DECLARE (el) =
1145 .format = "avf[%d] unknown event: event %d severity %d",
1146 .format_args = "i4i4i1i1",
1154 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1155 ed->dev_instance = ad->dev_instance;
1156 ed->event = e->event;
1157 ed->severity = e->severity;
1162 vec_reset_length (ad->events);
1167 ad->flags |= AVF_DEVICE_F_ERROR;
1168 ASSERT (ad->error != 0);
1169 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1173 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1174 u8 *rule, u32 rule_len, u8 *program_status,
1177 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1180 return avf_send_to_pf (vm, ad,
1181 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER :
1182 VIRTCHNL_OP_DEL_FDIR_FILTER,
1183 rule, rule_len, program_status, status_len);
1187 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1189 avf_device_t *ad = avf_get_device (req->dev_instance);
1191 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1192 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1194 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1195 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1196 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1198 avf_op_program_flow (vm, ad, req->is_add, req->rule, req->rule_len,
1199 req->program_status, req->status_len);
1201 clib_panic ("BUG: unknown avf proceess request type");
1203 if (req->calling_process_index != avf_process_node.index)
1204 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1207 static clib_error_t *
1208 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1210 uword *event_data = 0;
1211 req->calling_process_index = vlib_get_current_process_node_index (vm);
1213 if (req->calling_process_index != avf_process_node.index)
1215 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1216 AVF_PROCESS_EVENT_REQ, req);
1218 vlib_process_wait_for_event_or_clock (vm, 5.0);
1220 if (vlib_process_get_events (vm, &event_data) != 0)
1221 clib_panic ("avf process node failed to reply in 5 seconds");
1222 vec_free (event_data);
1225 avf_process_handle_request (vm, req);
1231 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1233 avf_process_req_t req;
1234 vlib_main_t *vm = vlib_get_main ();
1235 avf_device_t *ad = avf_get_device (hw->dev_instance);
1240 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1241 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1243 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1244 ad->flags |= AVF_DEVICE_F_PROMISC;
1250 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1251 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1252 req.dev_instance = hw->dev_instance;
1254 if ((err = avf_process_request (vm, &req)))
1256 avf_log_err (ad, "error: %U", format_clib_error, err);
1257 clib_error_free (err);
1264 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1266 avf_main_t *am = &avf_main;
1267 uword *event_data = 0, event_type;
1268 int enabled = 0, irq;
1269 f64 last_run_duration = 0;
1270 f64 last_periodic_time = 0;
1271 avf_device_t **dev_pointers = 0;
1277 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1279 vlib_process_wait_for_event (vm);
1281 event_type = vlib_process_get_events (vm, &event_data);
1287 last_periodic_time = vlib_time_now (vm);
1289 case AVF_PROCESS_EVENT_START:
1292 case AVF_PROCESS_EVENT_DELETE_IF:
1293 for (int i = 0; i < vec_len (event_data); i++)
1295 avf_device_t *ad = avf_get_device (event_data[i]);
1296 avf_delete_if (vm, ad, /* with_barrier */ 1);
1298 if (pool_elts (am->devices) < 1)
1301 case AVF_PROCESS_EVENT_AQ_INT:
1304 case AVF_PROCESS_EVENT_REQ:
1305 for (int i = 0; i < vec_len (event_data); i++)
1306 avf_process_handle_request (vm, (void *) event_data[i]);
1313 vec_reset_length (event_data);
1318 /* create local list of device pointers as device pool may grow
1320 vec_reset_length (dev_pointers);
1322 pool_foreach_index (i, am->devices)
1324 vec_add1 (dev_pointers, avf_get_device (i));
1327 vec_foreach_index (i, dev_pointers)
1329 avf_process_one_device (vm, dev_pointers[i], irq);
1332 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1338 VLIB_REGISTER_NODE (avf_process_node) = {
1339 .function = avf_process,
1340 .type = VLIB_NODE_TYPE_PROCESS,
1341 .name = "avf-process",
1346 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1348 uword pd = vlib_pci_get_private_data (vm, h);
1349 avf_device_t *ad = avf_get_device (pd);
1352 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1354 if (ad->flags & AVF_DEVICE_F_ELOG)
1357 ELOG_TYPE_DECLARE (el) =
1359 .format = "avf[%d] irq 0: icr0 0x%x",
1360 .format_args = "i4i4",
1369 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1370 ed->dev_instance = ad->dev_instance;
1374 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1376 /* bit 30 - Send/Receive Admin queue interrupt indication */
1377 if (icr0 & (1 << 30))
1378 vlib_process_signal_event (vm, avf_process_node.index,
1379 AVF_PROCESS_EVENT_AQ_INT, 0);
1383 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1385 vnet_main_t *vnm = vnet_get_main ();
1386 uword pd = vlib_pci_get_private_data (vm, h);
1387 avf_device_t *ad = avf_get_device (pd);
1388 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1390 if (ad->flags & AVF_DEVICE_F_ELOG)
1393 ELOG_TYPE_DECLARE (el) =
1395 .format = "avf[%d] irq %d: received",
1396 .format_args = "i4i2",
1405 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1406 ed->dev_instance = ad->dev_instance;
1412 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1413 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1414 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1418 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1420 vnet_main_t *vnm = vnet_get_main ();
1421 avf_main_t *am = &avf_main;
1424 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1426 if (ad->hw_if_index)
1429 vlib_worker_thread_barrier_sync (vm);
1430 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1431 ethernet_delete_interface (vnm, ad->hw_if_index);
1433 vlib_worker_thread_barrier_release (vm);
1436 vlib_pci_device_close (vm, ad->pci_dev_handle);
1438 vlib_physmem_free (vm, ad->atq);
1439 vlib_physmem_free (vm, ad->arq);
1440 vlib_physmem_free (vm, ad->atq_bufs);
1441 vlib_physmem_free (vm, ad->arq_bufs);
1444 vec_foreach_index (i, ad->rxqs)
1446 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1447 vlib_physmem_free (vm, (void *) rxq->descs);
1448 if (rxq->n_enqueued)
1449 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1451 vec_free (rxq->bufs);
1454 vec_free (ad->rxqs);
1457 vec_foreach_index (i, ad->txqs)
1459 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1460 vlib_physmem_free (vm, (void *) txq->descs);
1461 if (txq->n_enqueued)
1463 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1464 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1467 /* Free the placeholder buffer */
1468 vlib_buffer_free_one(vm, txq->ctx_desc_placeholder_bi);
1469 vec_free (txq->bufs);
1470 clib_ring_free (txq->rs_slots);
1473 vec_free (ad->txqs);
1474 vec_free (ad->name);
1476 clib_error_free (ad->error);
1477 clib_memset (ad, 0, sizeof (*ad));
1478 pool_put_index (am->devices, ad->dev_instance);
1483 avf_validate_queue_size (avf_create_if_args_t * args)
1485 clib_error_t *error = 0;
1487 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1488 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1490 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1491 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1493 args->rv = VNET_API_ERROR_INVALID_VALUE;
1495 clib_error_return (error, "queue size must not be greater than %u",
1499 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1500 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1502 args->rv = VNET_API_ERROR_INVALID_VALUE;
1504 clib_error_return (error, "queue size must not be smaller than %u",
1508 if ((args->rxq_size & (args->rxq_size - 1)) ||
1509 (args->txq_size & (args->txq_size - 1)))
1511 args->rv = VNET_API_ERROR_INVALID_VALUE;
1513 clib_error_return (error, "queue size must be a power of two");
1520 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1522 vnet_main_t *vnm = vnet_get_main ();
1523 avf_main_t *am = &avf_main;
1524 avf_device_t *ad, **adp;
1525 vlib_pci_dev_handle_t h;
1526 clib_error_t *error = 0;
1529 /* check input args */
1530 if (avf_validate_queue_size (args) != 0)
1534 pool_foreach (adp, am->devices) {
1535 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1537 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1539 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1540 &args->addr, "pci address in use");
1546 pool_get (am->devices, adp);
1547 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1548 CLIB_CACHE_LINE_BYTES);
1549 clib_memset (ad, 0, sizeof (avf_device_t));
1550 ad->dev_instance = adp - am->devices;
1551 ad->per_interface_next_index = ~0;
1552 ad->name = vec_dup (args->name);
1554 if (args->enable_elog)
1555 ad->flags |= AVF_DEVICE_F_ELOG;
1557 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1560 pool_put (am->devices, adp);
1562 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1564 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1568 ad->pci_dev_handle = h;
1569 ad->pci_addr = args->addr;
1570 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1572 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1574 if ((error = vlib_pci_bus_master_enable (vm, h)))
1577 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1580 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1582 CLIB_CACHE_LINE_BYTES,
1586 error = vlib_physmem_last_error (vm);
1590 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1593 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1595 CLIB_CACHE_LINE_BYTES,
1599 error = vlib_physmem_last_error (vm);
1603 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1606 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1608 CLIB_CACHE_LINE_BYTES,
1610 if (ad->atq_bufs == 0)
1612 error = vlib_physmem_last_error (vm);
1616 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1619 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1621 CLIB_CACHE_LINE_BYTES,
1623 if (ad->arq_bufs == 0)
1625 error = vlib_physmem_last_error (vm);
1629 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1632 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1633 ad->flags |= AVF_DEVICE_F_VA_DMA;
1635 if ((error = avf_device_init (vm, am, ad, args)))
1638 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1639 &avf_irq_0_handler)))
1642 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1643 &avf_irq_n_handler)))
1646 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1649 if ((error = vlib_pci_intr_enable (vm, h)))
1652 /* create interface */
1653 error = ethernet_register_interface (vnm, avf_device_class.index,
1654 ad->dev_instance, ad->hwaddr,
1655 &ad->hw_if_index, avf_flag_change);
1660 /* Indicate ability to support L3 DMAC filtering and
1661 * initialize interface to L3 non-promisc mode */
1662 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1663 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER |
1664 VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM |
1665 VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
1666 ethernet_set_flags (vnm, ad->hw_if_index,
1667 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1669 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1670 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1672 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1673 hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
1674 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1676 for (i = 0; i < ad->n_rx_queues; i++)
1679 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1680 VNET_HW_IF_RXQ_THREAD_ANY);
1682 if (ad->flags & AVF_DEVICE_F_RX_INT)
1684 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1685 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1687 ad->rxqs[i].queue_index = qi;
1689 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1691 if (pool_elts (am->devices) == 1)
1692 vlib_process_signal_event (vm, avf_process_node.index,
1693 AVF_PROCESS_EVENT_START, 0);
1698 avf_delete_if (vm, ad, /* with_barrier */ 0);
1699 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1700 args->error = clib_error_return (error, "pci-addr %U",
1701 format_vlib_pci_addr, &args->addr);
1702 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1705 static clib_error_t *
1706 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1708 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1709 avf_device_t *ad = avf_get_device (hi->dev_instance);
1710 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1712 if (ad->flags & AVF_DEVICE_F_ERROR)
1713 return clib_error_return (0, "device is in error state");
1717 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1718 VNET_HW_INTERFACE_FLAG_LINK_UP);
1719 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1723 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1724 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1729 static clib_error_t *
1730 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1731 vnet_hw_if_rx_mode mode)
1733 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1734 avf_device_t *ad = avf_get_device (hw->dev_instance);
1735 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1737 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1739 if (rxq->int_mode == 0)
1741 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1742 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1744 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1749 if (rxq->int_mode == 1)
1751 if (ad->n_rx_irqs != ad->n_rx_queues)
1752 return clib_error_return (0, "not enough interrupt lines");
1754 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1761 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1764 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1765 avf_device_t *ad = avf_get_device (hw->dev_instance);
1767 /* Shut off redirection */
1768 if (node_index == ~0)
1770 ad->per_interface_next_index = node_index;
1774 ad->per_interface_next_index =
1775 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1778 static clib_error_t *
1779 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1780 const u8 * address, u8 is_add)
1782 vlib_main_t *vm = vlib_get_main ();
1783 avf_process_req_t req;
1785 req.dev_instance = hw->dev_instance;
1786 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1787 req.is_add = is_add;
1788 clib_memcpy (req.eth_addr, address, 6);
1790 return avf_process_request (vm, &req);
1793 static char *avf_tx_func_error_strings[] = {
1795 foreach_avf_tx_func_error
1800 avf_clear_hw_interface_counters (u32 instance)
1802 avf_device_t *ad = avf_get_device (instance);
1803 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1804 &ad->eth_stats, sizeof (ad->eth_stats));
1808 avf_program_flow (u32 dev_instance, int is_add, u8 *rule, u32 rule_len,
1809 u8 *program_status, u32 status_len)
1811 vlib_main_t *vm = vlib_get_main ();
1812 avf_process_req_t req;
1814 req.dev_instance = dev_instance;
1815 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1816 req.is_add = is_add;
1818 req.rule_len = rule_len;
1819 req.program_status = program_status;
1820 req.status_len = status_len;
1822 return avf_process_request (vm, &req);
1826 VNET_DEVICE_CLASS (avf_device_class, ) = {
1827 .name = "Adaptive Virtual Function (AVF) interface",
1828 .clear_counters = avf_clear_hw_interface_counters,
1829 .format_device = format_avf_device,
1830 .format_device_name = format_avf_device_name,
1831 .admin_up_down_function = avf_interface_admin_up_down,
1832 .rx_mode_change_function = avf_interface_rx_mode_change,
1833 .rx_redirect_to_node = avf_set_interface_next_node,
1834 .mac_addr_add_del_function = avf_add_del_mac_address,
1835 .tx_function_n_errors = AVF_TX_N_ERROR,
1836 .tx_function_error_strings = avf_tx_func_error_strings,
1837 .flow_ops_function = avf_flow_ops_fn,
1842 avf_init (vlib_main_t * vm)
1844 avf_main_t *am = &avf_main;
1845 vlib_thread_main_t *tm = vlib_get_thread_main ();
1847 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1848 CLIB_CACHE_LINE_BYTES);
1854 VLIB_INIT_FUNCTION (avf_init) =
1856 .runs_after = VLIB_INITS ("pci_bus_init"),
1861 * fd.io coding-style-patch-verification: ON
1864 * eval: (c-set-style "gnu")