2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
18 #include <vlib/vlib.h>
19 #include <vppinfra/ring.h>
20 #include <vlib/unix/unix.h>
21 #include <vlib/pci/pci.h>
22 #include <vnet/ethernet/ethernet.h>
23 #include <vnet/interface/rx_queue_funcs.h>
24 #include <vnet/interface/tx_queue_funcs.h>
28 #define AVF_MBOX_LEN 64
29 #define AVF_MBOX_BUF_SZ 4096
30 #define AVF_RXQ_SZ 512
31 #define AVF_TXQ_SZ 512
32 #define AVF_ITR_INT 250
34 #define PCI_VENDOR_ID_INTEL 0x8086
35 #define PCI_DEVICE_ID_INTEL_AVF 0x1889
36 #define PCI_DEVICE_ID_INTEL_X710_VF 0x154c
37 #define PCI_DEVICE_ID_INTEL_X722_VF 0x37cd
40 VLIB_REGISTER_LOG_CLASS (avf_log) = {
46 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier);
48 static pci_device_id_t avf_pci_device_ids[] = {
49 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_AVF},
50 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X710_VF},
51 {.vendor_id = PCI_VENDOR_ID_INTEL,.device_id = PCI_DEVICE_ID_INTEL_X722_VF},
55 const static char *virtchnl_event_names[] = {
56 #define _(v, n) [v] = #n,
57 foreach_virtchnl_event_code
63 AVF_IRQ_STATE_DISABLED,
64 AVF_IRQ_STATE_ENABLED,
65 AVF_IRQ_STATE_WB_ON_ITR,
69 avf_irq_0_set_state (avf_device_t * ad, avf_irq_state_t state)
71 u32 dyn_ctl0 = 0, icr0_ena = 0;
73 dyn_ctl0 |= (3 << 3); /* 11b = No ITR update */
75 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
76 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
79 if (state == AVF_IRQ_STATE_DISABLED)
85 icr0_ena |= (1 << 30); /* [30] Admin Queue Enable */
87 dyn_ctl0 |= (1 << 0); /* [0] Interrupt Enable */
88 dyn_ctl0 |= (1 << 1); /* [1] Clear PBA */
89 dyn_ctl0 |= (2 << 3); /* [4:3] ITR Index, 11b = No ITR update */
90 dyn_ctl0 |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
92 avf_reg_write (ad, AVFINT_ICR0_ENA1, icr0_ena);
93 avf_reg_write (ad, AVFINT_DYN_CTL0, dyn_ctl0);
98 avf_irq_n_set_state (avf_device_t * ad, u8 line, avf_irq_state_t state)
103 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
106 if (state == AVF_IRQ_STATE_DISABLED)
109 dyn_ctln |= (1 << 1); /* [1] Clear PBA */
110 if (state == AVF_IRQ_STATE_WB_ON_ITR)
112 /* minimal ITR interval, use ITR1 */
113 dyn_ctln |= (1 << 3); /* [4:3] ITR Index */
114 dyn_ctln |= ((32 / 2) << 5); /* [16:5] ITR Interval in 2us steps */
115 dyn_ctln |= (1 << 30); /* [30] Writeback on ITR */
119 /* configured ITR interval, use ITR0 */
120 dyn_ctln |= (1 << 0); /* [0] Interrupt Enable */
121 dyn_ctln |= ((AVF_ITR_INT / 2) << 5); /* [16:5] ITR Interval in 2us steps */
124 avf_reg_write (ad, AVFINT_DYN_CTLN (line), dyn_ctln);
130 avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
133 clib_error_t *err = 0;
134 avf_aq_desc_t *d, dc;
135 f64 t0, suspend_time = AVF_AQ_ENQ_SUSPEND_TIME;
137 d = &ad->atq[ad->atq_next_slot];
138 clib_memcpy_fast (d, dt, sizeof (avf_aq_desc_t));
139 d->flags |= AVF_AQ_F_RD | AVF_AQ_F_SI;
145 pa = ad->atq_bufs_pa + ad->atq_next_slot * AVF_MBOX_BUF_SZ;
146 d->addr_hi = (u32) (pa >> 32);
147 d->addr_lo = (u32) pa;
148 clib_memcpy_fast (ad->atq_bufs + ad->atq_next_slot * AVF_MBOX_BUF_SZ,
150 d->flags |= AVF_AQ_F_BUF;
153 if (ad->flags & AVF_DEVICE_F_ELOG)
154 clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
156 CLIB_MEMORY_BARRIER ();
157 ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
158 avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
161 t0 = vlib_time_now (vm);
163 vlib_process_suspend (vm, suspend_time);
165 if (((d->flags & AVF_AQ_F_DD) == 0) || ((d->flags & AVF_AQ_F_CMP) == 0))
167 f64 t = vlib_time_now (vm) - t0;
168 if (t > AVF_AQ_ENQ_MAX_WAIT_TIME)
170 avf_log_err (ad, "aq_desc_enq failed (timeout %.3fs)", t);
171 err = clib_error_return (0, "adminq enqueue timeout [opcode 0x%x]",
179 clib_memcpy_fast (dt, d, sizeof (avf_aq_desc_t));
180 if (d->flags & AVF_AQ_F_ERR)
181 return clib_error_return (0, "adminq enqueue error [opcode 0x%x, retval "
182 "%d]", d->opcode, d->retval);
185 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 (&vlib_global_main.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;
215 avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
219 avf_aq_desc_t d = {.opcode = 0x207,.param1 = reg,.param3 = val };
220 err = avf_aq_desc_enq (vm, ad, &d, 0, 0);
222 if (ad->flags & AVF_DEVICE_F_ELOG)
224 ELOG_TYPE_DECLARE (el) =
226 .format = "avf[%d] rx ctl reg write: reg 0x%x val 0x%x ",
227 .format_args = "i4i4i4",
235 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
236 ed->dev_instance = ad->dev_instance;
244 avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
250 vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
251 rxq = vec_elt_at_index (ad->rxqs, qid);
252 rxq->size = rxq_size;
254 rxq->descs = vlib_physmem_alloc_aligned_on_numa (vm, rxq->size *
255 sizeof (avf_rx_desc_t),
256 2 * CLIB_CACHE_LINE_BYTES,
259 rxq->buffer_pool_index =
260 vlib_buffer_pool_get_default_for_numa (vm, ad->numa_node);
263 return vlib_physmem_last_error (vm);
265 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
268 clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
269 vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
270 rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
272 n_alloc = vlib_buffer_alloc_from_pool (vm, rxq->bufs, rxq->size - 8,
273 rxq->buffer_pool_index);
276 return clib_error_return (0, "buffer allocation error");
278 rxq->n_enqueued = n_alloc;
279 avf_rx_desc_t *d = rxq->descs;
280 for (i = 0; i < n_alloc; i++)
282 vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
283 if (ad->flags & AVF_DEVICE_F_VA_DMA)
284 d->qword[0] = vlib_buffer_get_va (b);
286 d->qword[0] = vlib_buffer_get_pa (vm, b);
290 ad->n_rx_queues = clib_min (ad->num_queue_pairs, qid + 1);
295 avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
300 u8 bpi = vlib_buffer_pool_get_default_for_numa (vm,
303 if (qid >= ad->num_queue_pairs)
305 qid = qid % ad->num_queue_pairs;
306 txq = vec_elt_at_index (ad->txqs, qid);
307 ASSERT (txq->lock == 0);
308 clib_spinlock_init (&txq->lock);
309 ad->flags |= AVF_DEVICE_F_SHARED_TXQ_LOCK;
313 vec_validate_aligned (ad->txqs, qid, CLIB_CACHE_LINE_BYTES);
314 txq = vec_elt_at_index (ad->txqs, qid);
315 txq->size = txq_size;
318 /* Prepare a placeholder buffer(s) to maintain a 1-1 relationship between
319 * bufs and descs when a context descriptor is added in descs. Worst case
320 * every second descriptor is context descriptor and due to b->ref_count
321 * being u8 we need one for each block of 510 descriptors */
323 n = (txq->size / 510) + 1;
324 vec_validate_aligned (txq->ph_bufs, n, CLIB_CACHE_LINE_BYTES);
326 if (!vlib_buffer_alloc_from_pool (vm, txq->ph_bufs, n, bpi))
327 return clib_error_return (0, "buffer allocation error");
329 txq->descs = vlib_physmem_alloc_aligned_on_numa (vm, txq->size *
330 sizeof (avf_tx_desc_t),
331 2 * CLIB_CACHE_LINE_BYTES,
334 return vlib_physmem_last_error (vm);
336 if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
339 vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
340 txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
342 /* initialize ring of pending RS slots */
343 clib_ring_new_aligned (txq->rs_slots, 32, CLIB_CACHE_LINE_BYTES);
345 vec_validate_aligned (txq->tmp_descs, txq->size, CLIB_CACHE_LINE_BYTES);
346 vec_validate_aligned (txq->tmp_bufs, txq->size, CLIB_CACHE_LINE_BYTES);
348 ad->n_tx_queues = clib_min (ad->num_queue_pairs, qid + 1);
356 } virtchnl_promisc_info_t;
359 avf_arq_slot_init (avf_device_t * ad, u16 slot)
362 u64 pa = ad->arq_bufs_pa + slot * AVF_MBOX_BUF_SZ;
364 clib_memset (d, 0, sizeof (avf_aq_desc_t));
365 d->flags = AVF_AQ_F_BUF;
366 d->datalen = AVF_MBOX_BUF_SZ;
367 d->addr_hi = (u32) (pa >> 32);
368 d->addr_lo = (u32) pa;
372 avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
374 return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
375 pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
379 avf_adminq_init (vlib_main_t * vm, avf_device_t * ad)
384 /* VF MailBox Transmit */
385 clib_memset (ad->atq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
386 ad->atq_bufs_pa = avf_dma_addr (vm, ad, ad->atq_bufs);
388 pa = avf_dma_addr (vm, ad, ad->atq);
389 avf_reg_write (ad, AVF_ATQT, 0); /* Tail */
390 avf_reg_write (ad, AVF_ATQH, 0); /* Head */
391 avf_reg_write (ad, AVF_ATQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
392 avf_reg_write (ad, AVF_ATQBAL, (u32) pa); /* Base Address Low */
393 avf_reg_write (ad, AVF_ATQBAH, (u32) (pa >> 32)); /* Base Address High */
395 /* VF MailBox Receive */
396 clib_memset (ad->arq, 0, sizeof (avf_aq_desc_t) * AVF_MBOX_LEN);
397 ad->arq_bufs_pa = avf_dma_addr (vm, ad, ad->arq_bufs);
399 for (i = 0; i < AVF_MBOX_LEN; i++)
400 avf_arq_slot_init (ad, i);
402 pa = avf_dma_addr (vm, ad, ad->arq);
404 avf_reg_write (ad, AVF_ARQH, 0); /* Head */
405 avf_reg_write (ad, AVF_ARQT, 0); /* Head */
406 avf_reg_write (ad, AVF_ARQLEN, AVF_MBOX_LEN | (1ULL << 31)); /* len & ena */
407 avf_reg_write (ad, AVF_ARQBAL, (u32) pa); /* Base Address Low */
408 avf_reg_write (ad, AVF_ARQBAH, (u32) (pa >> 32)); /* Base Address High */
409 avf_reg_write (ad, AVF_ARQT, AVF_MBOX_LEN - 1); /* Tail */
411 ad->atq_next_slot = 0;
412 ad->arq_next_slot = 0;
416 avf_send_to_pf (vlib_main_t * vm, avf_device_t * ad, virtchnl_ops_t op,
417 void *in, int in_len, void *out, int out_len)
420 avf_aq_desc_t *d, dt = {.opcode = 0x801,.v_opcode = op };
422 f64 t0, suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
424 /* adminq operations should be only done from process node after device
426 ASSERT ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0 ||
427 vlib_get_current_process_node_index (vm) == avf_process_node.index);
429 /* suppress interrupt in the next adminq receive slot
430 as we are going to wait for response
431 we only need interrupts when event is received */
432 d = &ad->arq[ad->arq_next_slot];
433 d->flags |= AVF_AQ_F_SI;
435 if ((err = avf_aq_desc_enq (vm, ad, &dt, in, in_len)))
438 t0 = vlib_time_now (vm);
440 head = avf_get_u32 (ad->bar0, AVF_ARQH);
442 if (ad->arq_next_slot == head)
444 f64 t = vlib_time_now (vm) - t0;
445 if (t > AVF_SEND_TO_PF_MAX_WAIT_TIME)
447 avf_log_err (ad, "send_to_pf failed (timeout %.3fs)", t);
448 return clib_error_return (0, "timeout");
450 vlib_process_suspend (vm, suspend_time);
455 d = &ad->arq[ad->arq_next_slot];
457 if (d->v_opcode == VIRTCHNL_OP_EVENT)
459 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
460 virtchnl_pf_event_t *e;
462 if ((d->datalen != sizeof (virtchnl_pf_event_t)) ||
463 ((d->flags & AVF_AQ_F_BUF) == 0))
464 return clib_error_return (0, "event message error");
466 vec_add2 (ad->events, e, 1);
467 clib_memcpy_fast (e, buf, sizeof (virtchnl_pf_event_t));
468 avf_arq_slot_init (ad, ad->arq_next_slot);
471 t0 = vlib_time_now (vm);
472 suspend_time = AVF_SEND_TO_PF_SUSPEND_TIME;
476 if (d->v_opcode != op)
478 err = clib_error_return (0,
479 "unexpected message received [v_opcode = %u, "
480 "expected %u, v_retval %d]",
481 d->v_opcode, op, d->v_retval);
487 err = clib_error_return (0, "error [v_opcode = %u, v_retval %d]",
488 d->v_opcode, d->v_retval);
492 if (out_len && d->flags & AVF_AQ_F_BUF)
494 void *buf = ad->arq_bufs + ad->arq_next_slot * AVF_MBOX_BUF_SZ;
495 clib_memcpy_fast (out, buf, out_len);
498 avf_arq_slot_init (ad, ad->arq_next_slot);
499 avf_reg_write (ad, AVF_ARQT, ad->arq_next_slot);
501 ad->arq_next_slot = (ad->arq_next_slot + 1) % AVF_MBOX_LEN;
505 if (ad->flags & AVF_DEVICE_F_ELOG)
507 ELOG_TYPE_DECLARE (el) =
509 .format = "avf[%d] send to pf: v_opcode %s (%d) v_retval 0x%x",
510 .format_args = "i4t4i4i4",
511 .n_enum_strings = VIRTCHNL_N_OPS,
513 #define _(v, n) [v] = #n,
525 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
526 ed->dev_instance = ad->dev_instance;
528 ed->v_opcode_val = op;
529 ed->v_retval = d->v_retval;
535 avf_op_version (vlib_main_t * vm, avf_device_t * ad,
536 virtchnl_version_info_t * ver)
538 clib_error_t *err = 0;
539 virtchnl_version_info_t myver = {
540 .major = VIRTCHNL_VERSION_MAJOR,
541 .minor = VIRTCHNL_VERSION_MINOR,
544 avf_log_debug (ad, "version: major %u minor %u", myver.major, myver.minor);
546 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_VERSION, &myver,
547 sizeof (virtchnl_version_info_t), ver,
548 sizeof (virtchnl_version_info_t));
557 avf_op_get_vf_resources (vlib_main_t * vm, avf_device_t * ad,
558 virtchnl_vf_resource_t * res)
560 clib_error_t *err = 0;
561 u32 bitmap = (VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_PF |
562 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_VLAN |
563 VIRTCHNL_VF_OFFLOAD_RX_POLLING |
564 VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_OFFLOAD_FDIR_PF |
565 VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF | VIRTCHNL_VF_OFFLOAD_VLAN_V2);
567 avf_log_debug (ad, "get_vf_resources: bitmap 0x%x (%U)", bitmap,
568 format_avf_vf_cap_flags, bitmap);
569 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_VF_RESOURCES, &bitmap,
570 sizeof (u32), res, sizeof (virtchnl_vf_resource_t));
576 "get_vf_resources: num_vsis %u num_queue_pairs %u "
577 "max_vectors %u max_mtu %u vf_cap_flags 0x%x (%U) "
578 "rss_key_size %u rss_lut_size %u",
579 res->num_vsis, res->num_queue_pairs, res->max_vectors,
580 res->max_mtu, res->vf_cap_flags, format_avf_vf_cap_flags,
581 res->vf_cap_flags, res->rss_key_size, res->rss_lut_size);
582 for (i = 0; i < res->num_vsis; i++)
585 "get_vf_resources_vsi[%u]: vsi_id %u num_queue_pairs %u vsi_type %u "
586 "qset_handle %u default_mac_addr %U",
587 i, res->vsi_res[i].vsi_id, res->vsi_res[i].num_queue_pairs,
588 res->vsi_res[i].vsi_type, res->vsi_res[i].qset_handle,
589 format_ethernet_address, res->vsi_res[i].default_mac_addr);
596 avf_op_config_rss_lut (vlib_main_t * vm, avf_device_t * ad)
598 int msg_len = sizeof (virtchnl_rss_lut_t) + ad->rss_lut_size - 1;
601 virtchnl_rss_lut_t *rl;
603 clib_memset (msg, 0, msg_len);
604 rl = (virtchnl_rss_lut_t *) msg;
605 rl->vsi_id = ad->vsi_id;
606 rl->lut_entries = ad->rss_lut_size;
607 for (i = 0; i < ad->rss_lut_size; i++)
608 rl->lut[i] = i % ad->n_rx_queues;
610 avf_log_debug (ad, "config_rss_lut: vsi_id %u rss_lut_size %u lut 0x%U",
611 rl->vsi_id, rl->lut_entries, format_hex_bytes_no_wrap,
612 rl->lut, rl->lut_entries);
614 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_LUT, msg, msg_len, 0,
619 avf_op_config_rss_key (vlib_main_t * vm, avf_device_t * ad)
621 int msg_len = sizeof (virtchnl_rss_key_t) + ad->rss_key_size - 1;
624 virtchnl_rss_key_t *rk;
626 clib_memset (msg, 0, msg_len);
627 rk = (virtchnl_rss_key_t *) msg;
628 rk->vsi_id = ad->vsi_id;
629 rk->key_len = ad->rss_key_size;
630 u32 seed = random_default_seed ();
631 for (i = 0; i < ad->rss_key_size; i++)
632 rk->key[i] = (u8) random_u32 (&seed);
634 avf_log_debug (ad, "config_rss_key: vsi_id %u rss_key_size %u key 0x%U",
635 rk->vsi_id, rk->key_len, format_hex_bytes_no_wrap, rk->key,
638 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_RSS_KEY, msg, msg_len, 0,
643 avf_op_disable_vlan_stripping (vlib_main_t * vm, avf_device_t * ad)
645 avf_log_debug (ad, "disable_vlan_stripping");
647 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 0, 0, 0,
652 avf_op_config_promisc_mode (vlib_main_t * vm, avf_device_t * ad,
655 virtchnl_promisc_info_t pi = { 0 };
657 pi.vsi_id = ad->vsi_id;
660 pi.flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
662 avf_log_debug (ad, "config_promisc_mode: unicast %s multicast %s",
663 pi.flags & FLAG_VF_UNICAST_PROMISC ? "on" : "off",
664 pi.flags & FLAG_VF_MULTICAST_PROMISC ? "on" : "off");
666 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, &pi,
667 sizeof (virtchnl_promisc_info_t), 0, 0);
672 avf_op_config_vsi_queues (vlib_main_t * vm, avf_device_t * ad)
675 int n_qp = clib_max (vec_len (ad->rxqs), vec_len (ad->txqs));
676 int msg_len = sizeof (virtchnl_vsi_queue_config_info_t) + n_qp *
677 sizeof (virtchnl_queue_pair_info_t);
679 virtchnl_vsi_queue_config_info_t *ci;
681 clib_memset (msg, 0, msg_len);
682 ci = (virtchnl_vsi_queue_config_info_t *) msg;
683 ci->vsi_id = ad->vsi_id;
684 ci->num_queue_pairs = n_qp;
686 avf_log_debug (ad, "config_vsi_queues: vsi_id %u num_queue_pairs %u",
687 ad->vsi_id, ci->num_queue_pairs);
689 for (i = 0; i < n_qp; i++)
691 virtchnl_txq_info_t *txq = &ci->qpair[i].txq;
692 virtchnl_rxq_info_t *rxq = &ci->qpair[i].rxq;
694 rxq->vsi_id = ad->vsi_id;
696 rxq->max_pkt_size = ETHERNET_MAX_PACKET_BYTES;
697 if (i < vec_len (ad->rxqs))
699 avf_rxq_t *q = vec_elt_at_index (ad->rxqs, i);
700 rxq->ring_len = q->size;
701 rxq->databuffer_size = vlib_buffer_get_default_data_size (vm);
702 rxq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
703 avf_reg_write (ad, AVF_QRX_TAIL (i), q->size - 1);
705 avf_log_debug (ad, "config_vsi_queues_rx[%u]: max_pkt_size %u "
706 "ring_len %u databuffer_size %u dma_ring_addr 0x%llx",
707 i, rxq->max_pkt_size, rxq->ring_len,
708 rxq->databuffer_size, rxq->dma_ring_addr);
710 txq->vsi_id = ad->vsi_id;
712 if (i < vec_len (ad->txqs))
714 avf_txq_t *q = vec_elt_at_index (ad->txqs, i);
715 txq->ring_len = q->size;
716 txq->dma_ring_addr = avf_dma_addr (vm, ad, (void *) q->descs);
718 avf_log_debug (ad, "config_vsi_queues_tx[%u]: ring_len %u "
719 "dma_ring_addr 0x%llx", i, txq->ring_len,
723 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_VSI_QUEUES, msg, msg_len,
728 avf_op_config_irq_map (vlib_main_t * vm, avf_device_t * ad)
730 int msg_len = sizeof (virtchnl_irq_map_info_t) +
731 (ad->n_rx_irqs) * sizeof (virtchnl_vector_map_t);
733 virtchnl_irq_map_info_t *imi;
735 clib_memset (msg, 0, msg_len);
736 imi = (virtchnl_irq_map_info_t *) msg;
737 imi->num_vectors = ad->n_rx_irqs;
739 for (int i = 0; i < ad->n_rx_irqs; i++)
741 imi->vecmap[i].vector_id = i + 1;
742 imi->vecmap[i].vsi_id = ad->vsi_id;
743 if (ad->n_rx_irqs == ad->n_rx_queues)
744 imi->vecmap[i].rxq_map = 1 << i;
746 imi->vecmap[i].rxq_map = pow2_mask (ad->n_rx_queues);;
748 avf_log_debug (ad, "config_irq_map[%u/%u]: vsi_id %u vector_id %u "
749 "rxq_map %u", i, ad->n_rx_irqs - 1, ad->vsi_id,
750 imi->vecmap[i].vector_id, imi->vecmap[i].rxq_map);
754 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_CONFIG_IRQ_MAP, msg, msg_len, 0,
759 avf_op_add_del_eth_addr (vlib_main_t * vm, avf_device_t * ad, u8 count,
760 u8 * macs, int is_add)
763 sizeof (virtchnl_ether_addr_list_t) +
764 count * sizeof (virtchnl_ether_addr_t);
766 virtchnl_ether_addr_list_t *al;
769 clib_memset (msg, 0, msg_len);
770 al = (virtchnl_ether_addr_list_t *) msg;
771 al->vsi_id = ad->vsi_id;
772 al->num_elements = count;
774 avf_log_debug (ad, "add_del_eth_addr: vsi_id %u num_elements %u is_add %u",
775 ad->vsi_id, al->num_elements, is_add);
777 for (i = 0; i < count; i++)
779 clib_memcpy_fast (&al->list[i].addr, macs + i * 6, 6);
780 avf_log_debug (ad, "add_del_eth_addr[%u]: %U", i,
781 format_ethernet_address, &al->list[i].addr);
783 return avf_send_to_pf (vm, ad, is_add ? VIRTCHNL_OP_ADD_ETH_ADDR :
784 VIRTCHNL_OP_DEL_ETH_ADDR, msg, msg_len, 0, 0);
788 avf_op_enable_queues (vlib_main_t * vm, avf_device_t * ad, u32 rx, u32 tx)
790 virtchnl_queue_select_t qs = { 0 };
792 qs.vsi_id = ad->vsi_id;
796 avf_log_debug (ad, "enable_queues: vsi_id %u rx_queues %u tx_queues %u",
797 ad->vsi_id, qs.rx_queues, qs.tx_queues);
803 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
804 avf_reg_write (ad, AVF_QRX_TAIL (i), rxq->n_enqueued);
809 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_ENABLE_QUEUES, &qs,
810 sizeof (virtchnl_queue_select_t), 0, 0);
814 avf_op_get_stats (vlib_main_t * vm, avf_device_t * ad,
815 virtchnl_eth_stats_t * es)
817 virtchnl_queue_select_t qs = { 0 };
818 qs.vsi_id = ad->vsi_id;
820 avf_log_debug (ad, "get_stats: vsi_id %u", ad->vsi_id);
822 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_STATS,
823 &qs, sizeof (virtchnl_queue_select_t),
824 es, sizeof (virtchnl_eth_stats_t));
828 avf_op_get_offload_vlan_v2_caps (vlib_main_t *vm, avf_device_t *ad,
829 virtchnl_vlan_caps_t *vc)
833 err = avf_send_to_pf (vm, ad, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, 0, 0, vc,
834 sizeof (virtchnl_vlan_caps_t));
836 avf_log_debug (ad, "get_offload_vlan_v2_caps:\n%U%U", format_white_space, 16,
837 format_avf_vlan_caps, vc);
843 avf_op_disable_vlan_stripping_v2 (vlib_main_t *vm, avf_device_t *ad, u32 outer,
846 virtchnl_vlan_setting_t vs = {
847 .outer_ethertype_setting = outer,
848 .inner_ethertype_setting = inner,
849 .vport_id = ad->vsi_id,
852 avf_log_debug (ad, "disable_vlan_stripping_v2: outer: %U, inner %U",
853 format_avf_vlan_support, outer, format_avf_vlan_support,
856 return avf_send_to_pf (vm, ad, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2, &vs,
857 sizeof (virtchnl_vlan_setting_t), 0, 0);
861 avf_device_reset (vlib_main_t * vm, avf_device_t * ad)
863 avf_aq_desc_t d = { 0 };
866 f64 t0, t = 0, suspend_time = AVF_RESET_SUSPEND_TIME;
868 avf_log_debug (ad, "reset");
871 d.v_opcode = VIRTCHNL_OP_RESET_VF;
872 if ((error = avf_aq_desc_enq (vm, ad, &d, 0, 0)))
875 t0 = vlib_time_now (vm);
877 vlib_process_suspend (vm, suspend_time);
879 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
881 if (rstat == 2 || rstat == 3)
883 avf_log_debug (ad, "reset completed in %.3fs", t);
887 t = vlib_time_now (vm) - t0;
888 if (t > AVF_RESET_MAX_WAIT_TIME)
890 avf_log_err (ad, "reset failed (timeout %.3fs)", t);
891 return clib_error_return (0, "reset failed (timeout)");
899 avf_request_queues (vlib_main_t * vm, avf_device_t * ad, u16 num_queue_pairs)
901 virtchnl_vf_res_request_t res_req = { 0 };
904 f64 t0, t, suspend_time = AVF_RESET_SUSPEND_TIME;
906 res_req.num_queue_pairs = num_queue_pairs;
908 avf_log_debug (ad, "request_queues: num_queue_pairs %u", num_queue_pairs);
910 error = avf_send_to_pf (vm, ad, VIRTCHNL_OP_REQUEST_QUEUES, &res_req,
911 sizeof (virtchnl_vf_res_request_t), &res_req,
912 sizeof (virtchnl_vf_res_request_t));
915 * if PF responds, the request failed
916 * else PF initializes restart and avf_send_to_pf returns an error
920 return clib_error_return (0, "requested more than %u queue pairs",
921 res_req.num_queue_pairs);
924 t0 = vlib_time_now (vm);
926 vlib_process_suspend (vm, suspend_time);
927 t = vlib_time_now (vm) - t0;
929 rstat = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
931 if ((rstat == VIRTCHNL_VFR_COMPLETED) || (rstat == VIRTCHNL_VFR_VFACTIVE))
934 if (t > AVF_RESET_MAX_WAIT_TIME)
936 avf_log_err (ad, "request queues failed (timeout %.3f seconds)", t);
937 return clib_error_return (0, "request queues failed (timeout)");
948 avf_device_init (vlib_main_t * vm, avf_main_t * am, avf_device_t * ad,
949 avf_create_if_args_t * args)
951 virtchnl_version_info_t ver = { 0 };
952 virtchnl_vf_resource_t res = { 0 };
954 vlib_thread_main_t *tm = vlib_get_thread_main ();
957 avf_adminq_init (vm, ad);
959 if ((error = avf_request_queues (vm, ad, clib_max (tm->n_vlib_mains,
962 /* we failed to get more queues, but still we want to proceed */
963 clib_error_free (error);
965 if ((error = avf_device_reset (vm, ad)))
969 avf_adminq_init (vm, ad);
974 if ((error = avf_op_version (vm, ad, &ver)))
977 if (ver.major != VIRTCHNL_VERSION_MAJOR ||
978 ver.minor != VIRTCHNL_VERSION_MINOR)
979 return clib_error_return (0, "incompatible protocol version "
980 "(remote %d.%d)", ver.major, ver.minor);
983 * OP_GET_VF_RESOURCES
985 if ((error = avf_op_get_vf_resources (vm, ad, &res)))
988 if (res.num_vsis != 1 || res.vsi_res[0].vsi_type != VIRTCHNL_VSI_SRIOV)
989 return clib_error_return (0, "unexpected GET_VF_RESOURCE reply received");
991 ad->vsi_id = res.vsi_res[0].vsi_id;
992 ad->cap_flags = res.vf_cap_flags;
993 ad->num_queue_pairs = res.num_queue_pairs;
994 ad->max_vectors = res.max_vectors;
995 ad->max_mtu = res.max_mtu;
996 ad->rss_key_size = res.rss_key_size;
997 ad->rss_lut_size = res.rss_lut_size;
998 wb_on_itr = (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) != 0;
1000 clib_memcpy_fast (ad->hwaddr, res.vsi_res[0].default_mac_addr, 6);
1003 * Disable VLAN stripping
1005 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2)
1007 virtchnl_vlan_caps_t vc = {};
1008 u32 outer = VIRTCHNL_VLAN_UNSUPPORTED, inner = VIRTCHNL_VLAN_UNSUPPORTED;
1009 u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
1011 if ((error = avf_op_get_offload_vlan_v2_caps (vm, ad, &vc)))
1014 outer = vc.offloads.stripping_support.outer & mask;
1015 inner = vc.offloads.stripping_support.inner & mask;
1017 if ((outer || inner) &&
1018 (error = avf_op_disable_vlan_stripping_v2 (vm, ad, outer, inner)))
1021 else if ((error = avf_op_disable_vlan_stripping (vm, ad)))
1027 if (args->rxq_num == 0)
1031 else if (args->rxq_num > ad->num_queue_pairs)
1033 args->rxq_num = ad->num_queue_pairs;
1034 avf_log_warn (ad, "Requested more rx queues than queue pairs available."
1035 "Using %u rx queues.", args->rxq_num);
1038 for (i = 0; i < args->rxq_num; i++)
1039 if ((error = avf_rxq_init (vm, ad, i, args->rxq_size)))
1042 for (i = 0; i < tm->n_vlib_mains; i++)
1043 if ((error = avf_txq_init (vm, ad, i, args->txq_size)))
1046 if (ad->max_vectors > ad->n_rx_queues)
1048 ad->flags |= AVF_DEVICE_F_RX_INT;
1049 ad->n_rx_irqs = args->rxq_num;
1054 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1055 (error = avf_op_config_rss_lut (vm, ad)))
1058 if ((ad->cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) &&
1059 (error = avf_op_config_rss_key (vm, ad)))
1062 if ((error = avf_op_config_vsi_queues (vm, ad)))
1065 if ((error = avf_op_config_irq_map (vm, ad)))
1068 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1070 for (i = 0; i < ad->n_rx_irqs; i++)
1071 avf_irq_n_set_state (ad, i, wb_on_itr ? AVF_IRQ_STATE_WB_ON_ITR :
1072 AVF_IRQ_STATE_ENABLED);
1074 if ((error = avf_op_add_del_eth_addr (vm, ad, 1, ad->hwaddr, 1 /* add */ )))
1077 if ((error = avf_op_enable_queues (vm, ad, pow2_mask (ad->n_rx_queues),
1078 pow2_mask (ad->n_tx_queues))))
1081 ad->flags |= AVF_DEVICE_F_INITIALIZED;
1086 avf_process_one_device (vlib_main_t * vm, avf_device_t * ad, int is_irq)
1088 vnet_main_t *vnm = vnet_get_main ();
1089 virtchnl_pf_event_t *e;
1092 if (ad->flags & AVF_DEVICE_F_ERROR)
1095 if ((ad->flags & AVF_DEVICE_F_INITIALIZED) == 0)
1098 ASSERT (ad->error == 0);
1100 /* do not process device in reset state */
1101 r = avf_get_u32 (ad->bar0, AVFGEN_RSTAT);
1102 if (r != VIRTCHNL_VFR_VFACTIVE)
1105 r = avf_get_u32 (ad->bar0, AVF_ARQLEN);
1106 if ((r & 0xf0000000) != (1ULL << 31))
1108 ad->error = clib_error_return (0, "arq not enabled, arqlen = 0x%x", r);
1109 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1113 r = avf_get_u32 (ad->bar0, AVF_ATQLEN);
1114 if ((r & 0xf0000000) != (1ULL << 31))
1116 ad->error = clib_error_return (0, "atq not enabled, atqlen = 0x%x", r);
1117 avf_log_err (ad, "error: %U", format_clib_error, ad->error);
1122 avf_op_get_stats (vm, ad, &ad->eth_stats);
1125 vec_foreach (e, ad->events)
1127 avf_log_debug (ad, "event: %s (%u) sev %d",
1128 virtchnl_event_names[e->event], e->event, e->severity);
1129 if (e->event == VIRTCHNL_EVENT_LINK_CHANGE)
1132 virtchnl_link_speed_t speed = e->event_data.link_event.link_speed;
1136 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1137 link_up = e->event_data.link_event_adv.link_status;
1139 link_up = e->event_data.link_event.link_status;
1141 if (ad->cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1142 mbps = e->event_data.link_event_adv.link_speed;
1143 if (speed == VIRTCHNL_LINK_SPEED_40GB)
1145 else if (speed == VIRTCHNL_LINK_SPEED_25GB)
1147 else if (speed == VIRTCHNL_LINK_SPEED_10GB)
1149 else if (speed == VIRTCHNL_LINK_SPEED_5GB)
1151 else if (speed == VIRTCHNL_LINK_SPEED_2_5GB)
1153 else if (speed == VIRTCHNL_LINK_SPEED_1GB)
1155 else if (speed == VIRTCHNL_LINK_SPEED_100MB)
1158 avf_log_debug (ad, "event_link_change: status %d speed %u mbps",
1161 if (link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) == 0)
1163 ad->flags |= AVF_DEVICE_F_LINK_UP;
1164 flags |= (VNET_HW_INTERFACE_FLAG_FULL_DUPLEX |
1165 VNET_HW_INTERFACE_FLAG_LINK_UP);
1166 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, flags);
1167 vnet_hw_interface_set_link_speed (vnm, ad->hw_if_index,
1169 ad->link_speed = mbps;
1171 else if (!link_up && (ad->flags & AVF_DEVICE_F_LINK_UP) != 0)
1173 ad->flags &= ~AVF_DEVICE_F_LINK_UP;
1177 if (ad->flags & AVF_DEVICE_F_ELOG)
1179 ELOG_TYPE_DECLARE (el) =
1181 .format = "avf[%d] link change: link_status %d "
1182 "link_speed %d mbps",
1183 .format_args = "i4i1i4",
1191 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1192 ed->dev_instance = ad->dev_instance;
1193 ed->link_status = link_up;
1194 ed->link_speed = mbps;
1199 if (ad->flags & AVF_DEVICE_F_ELOG)
1201 ELOG_TYPE_DECLARE (el) =
1203 .format = "avf[%d] unknown event: event %d severity %d",
1204 .format_args = "i4i4i1i1",
1212 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1213 ed->dev_instance = ad->dev_instance;
1214 ed->event = e->event;
1215 ed->severity = e->severity;
1220 vec_reset_length (ad->events);
1225 ad->flags |= AVF_DEVICE_F_ERROR;
1226 ASSERT (ad->error != 0);
1227 vlib_log_err (avf_log.class, "%U", format_clib_error, ad->error);
1231 avf_op_program_flow (vlib_main_t *vm, avf_device_t *ad, int is_create,
1232 u8 *rule, u32 rule_len, u8 *program_status,
1235 avf_log_debug (ad, "avf_op_program_flow: vsi_id %u is_create %u", ad->vsi_id,
1238 return avf_send_to_pf (vm, ad,
1239 is_create ? VIRTCHNL_OP_ADD_FDIR_FILTER :
1240 VIRTCHNL_OP_DEL_FDIR_FILTER,
1241 rule, rule_len, program_status, status_len);
1245 avf_process_handle_request (vlib_main_t * vm, avf_process_req_t * req)
1247 avf_device_t *ad = avf_get_device (req->dev_instance);
1249 if (req->type == AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR)
1250 req->error = avf_op_add_del_eth_addr (vm, ad, 1, req->eth_addr,
1252 else if (req->type == AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE)
1253 req->error = avf_op_config_promisc_mode (vm, ad, req->is_enable);
1254 else if (req->type == AVF_PROCESS_REQ_PROGRAM_FLOW)
1256 avf_op_program_flow (vm, ad, req->is_add, req->rule, req->rule_len,
1257 req->program_status, req->status_len);
1259 clib_panic ("BUG: unknown avf proceess request type");
1261 if (req->calling_process_index != avf_process_node.index)
1262 vlib_process_signal_event (vm, req->calling_process_index, 0, 0);
1265 static clib_error_t *
1266 avf_process_request (vlib_main_t * vm, avf_process_req_t * req)
1268 uword *event_data = 0;
1269 req->calling_process_index = vlib_get_current_process_node_index (vm);
1271 if (req->calling_process_index != avf_process_node.index)
1273 vlib_process_signal_event_pointer (vm, avf_process_node.index,
1274 AVF_PROCESS_EVENT_REQ, req);
1276 vlib_process_wait_for_event_or_clock (vm, 5.0);
1278 if (vlib_process_get_events (vm, &event_data) != 0)
1279 clib_panic ("avf process node failed to reply in 5 seconds");
1280 vec_free (event_data);
1283 avf_process_handle_request (vm, req);
1289 avf_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hw, u32 flags)
1291 avf_process_req_t req;
1292 vlib_main_t *vm = vlib_get_main ();
1293 avf_device_t *ad = avf_get_device (hw->dev_instance);
1298 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
1299 ad->flags &= ~AVF_DEVICE_F_PROMISC;
1301 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
1302 ad->flags |= AVF_DEVICE_F_PROMISC;
1308 req.is_enable = ((ad->flags & AVF_DEVICE_F_PROMISC) != 0);
1309 req.type = AVF_PROCESS_REQ_CONFIG_PROMISC_MDDE;
1310 req.dev_instance = hw->dev_instance;
1312 if ((err = avf_process_request (vm, &req)))
1314 avf_log_err (ad, "error: %U", format_clib_error, err);
1315 clib_error_free (err);
1322 avf_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1324 avf_main_t *am = &avf_main;
1325 uword *event_data = 0, event_type;
1326 int enabled = 0, irq;
1327 f64 last_run_duration = 0;
1328 f64 last_periodic_time = 0;
1329 avf_device_t **dev_pointers = 0;
1335 vlib_process_wait_for_event_or_clock (vm, 5.0 - last_run_duration);
1337 vlib_process_wait_for_event (vm);
1339 event_type = vlib_process_get_events (vm, &event_data);
1345 last_periodic_time = vlib_time_now (vm);
1347 case AVF_PROCESS_EVENT_START:
1350 case AVF_PROCESS_EVENT_DELETE_IF:
1351 for (int i = 0; i < vec_len (event_data); i++)
1353 avf_device_t *ad = avf_get_device (event_data[i]);
1354 avf_delete_if (vm, ad, /* with_barrier */ 1);
1356 if (pool_elts (am->devices) < 1)
1359 case AVF_PROCESS_EVENT_AQ_INT:
1362 case AVF_PROCESS_EVENT_REQ:
1363 for (int i = 0; i < vec_len (event_data); i++)
1364 avf_process_handle_request (vm, (void *) event_data[i]);
1371 vec_reset_length (event_data);
1376 /* create local list of device pointers as device pool may grow
1378 vec_reset_length (dev_pointers);
1380 pool_foreach_index (i, am->devices)
1382 vec_add1 (dev_pointers, avf_get_device (i));
1385 vec_foreach_index (i, dev_pointers)
1387 avf_process_one_device (vm, dev_pointers[i], irq);
1390 last_run_duration = vlib_time_now (vm) - last_periodic_time;
1396 VLIB_REGISTER_NODE (avf_process_node) = {
1397 .function = avf_process,
1398 .type = VLIB_NODE_TYPE_PROCESS,
1399 .name = "avf-process",
1404 avf_irq_0_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1406 uword pd = vlib_pci_get_private_data (vm, h);
1407 avf_device_t *ad = avf_get_device (pd);
1410 icr0 = avf_reg_read (ad, AVFINT_ICR0);
1412 if (ad->flags & AVF_DEVICE_F_ELOG)
1415 ELOG_TYPE_DECLARE (el) =
1417 .format = "avf[%d] irq 0: icr0 0x%x",
1418 .format_args = "i4i4",
1427 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1428 ed->dev_instance = ad->dev_instance;
1432 avf_irq_0_set_state (ad, AVF_IRQ_STATE_ENABLED);
1434 /* bit 30 - Send/Receive Admin queue interrupt indication */
1435 if (icr0 & (1 << 30))
1436 vlib_process_signal_event (vm, avf_process_node.index,
1437 AVF_PROCESS_EVENT_AQ_INT, 0);
1441 avf_irq_n_handler (vlib_main_t * vm, vlib_pci_dev_handle_t h, u16 line)
1443 vnet_main_t *vnm = vnet_get_main ();
1444 uword pd = vlib_pci_get_private_data (vm, h);
1445 avf_device_t *ad = avf_get_device (pd);
1446 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, line - 1);
1448 if (ad->flags & AVF_DEVICE_F_ELOG)
1451 ELOG_TYPE_DECLARE (el) =
1453 .format = "avf[%d] irq %d: received",
1454 .format_args = "i4i2",
1463 ed = ELOG_DATA (&vlib_global_main.elog_main, el);
1464 ed->dev_instance = ad->dev_instance;
1470 if (ad->flags & AVF_DEVICE_F_RX_INT && rxq->int_mode)
1471 vnet_hw_if_rx_queue_set_int_pending (vnm, rxq->queue_index);
1472 avf_irq_n_set_state (ad, line, AVF_IRQ_STATE_ENABLED);
1476 avf_delete_if (vlib_main_t * vm, avf_device_t * ad, int with_barrier)
1478 vnet_main_t *vnm = vnet_get_main ();
1479 avf_main_t *am = &avf_main;
1483 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1485 if (ad->hw_if_index)
1488 vlib_worker_thread_barrier_sync (vm);
1489 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1490 ethernet_delete_interface (vnm, ad->hw_if_index);
1492 vlib_worker_thread_barrier_release (vm);
1495 vlib_pci_device_close (vm, ad->pci_dev_handle);
1497 vlib_physmem_free (vm, ad->atq);
1498 vlib_physmem_free (vm, ad->arq);
1499 vlib_physmem_free (vm, ad->atq_bufs);
1500 vlib_physmem_free (vm, ad->arq_bufs);
1503 vec_foreach_index (i, ad->rxqs)
1505 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
1506 vlib_physmem_free (vm, (void *) rxq->descs);
1507 if (rxq->n_enqueued)
1508 vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
1510 vec_free (rxq->bufs);
1513 vec_free (ad->rxqs);
1516 vec_foreach_index (i, ad->txqs)
1518 avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
1519 vlib_physmem_free (vm, (void *) txq->descs);
1520 if (txq->n_enqueued)
1522 u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
1523 vlib_buffer_free_from_ring (vm, txq->bufs, first, txq->size,
1526 /* Free the placeholder buffer */
1527 vlib_buffer_free (vm, txq->ph_bufs, vec_len (txq->ph_bufs));
1528 vec_free (txq->ph_bufs);
1529 vec_free (txq->bufs);
1530 clib_ring_free (txq->rs_slots);
1531 vec_free (txq->tmp_bufs);
1532 vec_free (txq->tmp_descs);
1533 clib_spinlock_free (&txq->lock);
1536 vec_free (ad->txqs);
1537 vec_free (ad->name);
1539 clib_error_free (ad->error);
1540 dev_instance = ad->dev_instance;
1541 clib_memset (ad, 0, sizeof (*ad));
1542 pool_put_index (am->devices, dev_instance);
1547 avf_validate_queue_size (avf_create_if_args_t * args)
1549 clib_error_t *error = 0;
1551 args->rxq_size = (args->rxq_size == 0) ? AVF_RXQ_SZ : args->rxq_size;
1552 args->txq_size = (args->txq_size == 0) ? AVF_TXQ_SZ : args->txq_size;
1554 if ((args->rxq_size > AVF_QUEUE_SZ_MAX)
1555 || (args->txq_size > AVF_QUEUE_SZ_MAX))
1557 args->rv = VNET_API_ERROR_INVALID_VALUE;
1559 clib_error_return (error, "queue size must not be greater than %u",
1563 if ((args->rxq_size < AVF_QUEUE_SZ_MIN)
1564 || (args->txq_size < AVF_QUEUE_SZ_MIN))
1566 args->rv = VNET_API_ERROR_INVALID_VALUE;
1568 clib_error_return (error, "queue size must not be smaller than %u",
1572 if ((args->rxq_size & (args->rxq_size - 1)) ||
1573 (args->txq_size & (args->txq_size - 1)))
1575 args->rv = VNET_API_ERROR_INVALID_VALUE;
1577 clib_error_return (error, "queue size must be a power of two");
1584 avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
1586 vnet_main_t *vnm = vnet_get_main ();
1587 avf_main_t *am = &avf_main;
1588 avf_device_t *ad, **adp;
1589 vlib_pci_dev_handle_t h;
1590 clib_error_t *error = 0;
1593 /* check input args */
1594 if (avf_validate_queue_size (args) != 0)
1598 pool_foreach (adp, am->devices) {
1599 if ((*adp)->pci_addr.as_u32 == args->addr.as_u32)
1601 args->rv = VNET_API_ERROR_ADDRESS_IN_USE;
1603 clib_error_return (error, "%U: %s", format_vlib_pci_addr,
1604 &args->addr, "pci address in use");
1610 pool_get (am->devices, adp);
1611 adp[0] = ad = clib_mem_alloc_aligned (sizeof (avf_device_t),
1612 CLIB_CACHE_LINE_BYTES);
1613 clib_memset (ad, 0, sizeof (avf_device_t));
1614 ad->dev_instance = adp - am->devices;
1615 ad->per_interface_next_index = ~0;
1616 ad->name = vec_dup (args->name);
1618 if (args->enable_elog)
1619 ad->flags |= AVF_DEVICE_F_ELOG;
1621 if ((error = vlib_pci_device_open (vm, &args->addr, avf_pci_device_ids,
1624 pool_put (am->devices, adp);
1626 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1628 clib_error_return (error, "pci-addr %U", format_vlib_pci_addr,
1632 ad->pci_dev_handle = h;
1633 ad->pci_addr = args->addr;
1634 ad->numa_node = vlib_pci_get_numa_node (vm, h);
1636 vlib_pci_set_private_data (vm, h, ad->dev_instance);
1638 if ((error = vlib_pci_bus_master_enable (vm, h)))
1641 if ((error = vlib_pci_map_region (vm, h, 0, &ad->bar0)))
1644 ad->atq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1646 CLIB_CACHE_LINE_BYTES,
1650 error = vlib_physmem_last_error (vm);
1654 if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
1657 ad->arq = vlib_physmem_alloc_aligned_on_numa (vm, sizeof (avf_aq_desc_t) *
1659 CLIB_CACHE_LINE_BYTES,
1663 error = vlib_physmem_last_error (vm);
1667 if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
1670 ad->atq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1672 CLIB_CACHE_LINE_BYTES,
1674 if (ad->atq_bufs == 0)
1676 error = vlib_physmem_last_error (vm);
1680 if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
1683 ad->arq_bufs = vlib_physmem_alloc_aligned_on_numa (vm, AVF_MBOX_BUF_SZ *
1685 CLIB_CACHE_LINE_BYTES,
1687 if (ad->arq_bufs == 0)
1689 error = vlib_physmem_last_error (vm);
1693 if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
1696 if (vlib_pci_supports_virtual_addr_dma (vm, h))
1697 ad->flags |= AVF_DEVICE_F_VA_DMA;
1699 if ((error = avf_device_init (vm, am, ad, args)))
1702 if ((error = vlib_pci_register_msix_handler (vm, h, 0, 1,
1703 &avf_irq_0_handler)))
1706 if ((error = vlib_pci_register_msix_handler (vm, h, 1, ad->n_rx_irqs,
1707 &avf_irq_n_handler)))
1710 if ((error = vlib_pci_enable_msix_irq (vm, h, 0, ad->n_rx_irqs + 1)))
1713 if ((error = vlib_pci_intr_enable (vm, h)))
1716 /* create interface */
1717 error = ethernet_register_interface (vnm, avf_device_class.index,
1718 ad->dev_instance, ad->hwaddr,
1719 &ad->hw_if_index, avf_flag_change);
1724 /* Indicate ability to support L3 DMAC filtering and
1725 * initialize interface to L3 non-promisc mode */
1726 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, ad->hw_if_index);
1727 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER |
1728 VNET_HW_INTERFACE_CAP_SUPPORTS_L4_TX_CKSUM |
1729 VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
1730 ethernet_set_flags (vnm, ad->hw_if_index,
1731 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
1733 vnet_sw_interface_t *sw = vnet_get_hw_sw_interface (vnm, ad->hw_if_index);
1734 args->sw_if_index = ad->sw_if_index = sw->sw_if_index;
1736 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, ad->hw_if_index);
1737 hw->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_INT_MODE;
1738 vnet_hw_if_set_input_node (vnm, ad->hw_if_index, avf_input_node.index);
1740 for (i = 0; i < ad->n_rx_queues; i++)
1743 qi = vnet_hw_if_register_rx_queue (vnm, ad->hw_if_index, i,
1744 VNET_HW_IF_RXQ_THREAD_ANY);
1746 if (ad->flags & AVF_DEVICE_F_RX_INT)
1748 fi = vlib_pci_get_msix_file_index (vm, ad->pci_dev_handle, i + 1);
1749 vnet_hw_if_set_rx_queue_file_index (vnm, qi, fi);
1751 ad->rxqs[i].queue_index = qi;
1754 for (i = 0; i < ad->n_tx_queues; i++)
1756 u32 qi = vnet_hw_if_register_tx_queue (vnm, ad->hw_if_index, i);
1757 vnet_hw_if_tx_queue_assign_thread (vnm, qi, i);
1758 ad->txqs[i].queue_index = qi;
1761 vnet_hw_if_update_runtime_data (vnm, ad->hw_if_index);
1763 if (pool_elts (am->devices) == 1)
1764 vlib_process_signal_event (vm, avf_process_node.index,
1765 AVF_PROCESS_EVENT_START, 0);
1770 avf_delete_if (vm, ad, /* with_barrier */ 0);
1771 args->rv = VNET_API_ERROR_INVALID_INTERFACE;
1772 args->error = clib_error_return (error, "pci-addr %U",
1773 format_vlib_pci_addr, &args->addr);
1774 avf_log_err (ad, "error: %U", format_clib_error, args->error);
1777 static clib_error_t *
1778 avf_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
1780 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1781 avf_device_t *ad = avf_get_device (hi->dev_instance);
1782 uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
1784 if (ad->flags & AVF_DEVICE_F_ERROR)
1785 return clib_error_return (0, "device is in error state");
1789 vnet_hw_interface_set_flags (vnm, ad->hw_if_index,
1790 VNET_HW_INTERFACE_FLAG_LINK_UP);
1791 ad->flags |= AVF_DEVICE_F_ADMIN_UP;
1795 vnet_hw_interface_set_flags (vnm, ad->hw_if_index, 0);
1796 ad->flags &= ~AVF_DEVICE_F_ADMIN_UP;
1801 static clib_error_t *
1802 avf_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
1803 vnet_hw_if_rx_mode mode)
1805 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1806 avf_device_t *ad = avf_get_device (hw->dev_instance);
1807 avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
1809 if (mode == VNET_HW_IF_RX_MODE_POLLING)
1811 if (rxq->int_mode == 0)
1813 if (ad->cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1814 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_WB_ON_ITR);
1816 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1821 if (rxq->int_mode == 1)
1823 if (ad->n_rx_irqs != ad->n_rx_queues)
1824 return clib_error_return (0, "not enough interrupt lines");
1826 avf_irq_n_set_state (ad, qid, AVF_IRQ_STATE_ENABLED);
1833 avf_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
1836 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
1837 avf_device_t *ad = avf_get_device (hw->dev_instance);
1839 /* Shut off redirection */
1840 if (node_index == ~0)
1842 ad->per_interface_next_index = node_index;
1846 ad->per_interface_next_index =
1847 vlib_node_add_next (vlib_get_main (), avf_input_node.index, node_index);
1850 static clib_error_t *
1851 avf_add_del_mac_address (vnet_hw_interface_t * hw,
1852 const u8 * address, u8 is_add)
1854 vlib_main_t *vm = vlib_get_main ();
1855 avf_process_req_t req;
1857 req.dev_instance = hw->dev_instance;
1858 req.type = AVF_PROCESS_REQ_ADD_DEL_ETH_ADDR;
1859 req.is_add = is_add;
1860 clib_memcpy (req.eth_addr, address, 6);
1862 return avf_process_request (vm, &req);
1865 static char *avf_tx_func_error_strings[] = {
1867 foreach_avf_tx_func_error
1872 avf_clear_hw_interface_counters (u32 instance)
1874 avf_device_t *ad = avf_get_device (instance);
1875 clib_memcpy_fast (&ad->last_cleared_eth_stats,
1876 &ad->eth_stats, sizeof (ad->eth_stats));
1880 avf_program_flow (u32 dev_instance, int is_add, u8 *rule, u32 rule_len,
1881 u8 *program_status, u32 status_len)
1883 vlib_main_t *vm = vlib_get_main ();
1884 avf_process_req_t req;
1886 req.dev_instance = dev_instance;
1887 req.type = AVF_PROCESS_REQ_PROGRAM_FLOW;
1888 req.is_add = is_add;
1890 req.rule_len = rule_len;
1891 req.program_status = program_status;
1892 req.status_len = status_len;
1894 return avf_process_request (vm, &req);
1898 VNET_DEVICE_CLASS (avf_device_class, ) = {
1899 .name = "Adaptive Virtual Function (AVF) interface",
1900 .clear_counters = avf_clear_hw_interface_counters,
1901 .format_device = format_avf_device,
1902 .format_device_name = format_avf_device_name,
1903 .admin_up_down_function = avf_interface_admin_up_down,
1904 .rx_mode_change_function = avf_interface_rx_mode_change,
1905 .rx_redirect_to_node = avf_set_interface_next_node,
1906 .mac_addr_add_del_function = avf_add_del_mac_address,
1907 .tx_function_n_errors = AVF_TX_N_ERROR,
1908 .tx_function_error_strings = avf_tx_func_error_strings,
1909 .flow_ops_function = avf_flow_ops_fn,
1914 avf_init (vlib_main_t * vm)
1916 avf_main_t *am = &avf_main;
1917 vlib_thread_main_t *tm = vlib_get_thread_main ();
1919 vec_validate_aligned (am->per_thread_data, tm->n_vlib_mains - 1,
1920 CLIB_CACHE_LINE_BYTES);
1926 VLIB_INIT_FUNCTION (avf_init) =
1928 .runs_after = VLIB_INITS ("pci_bus_init"),
1933 * fd.io coding-style-patch-verification: ON
1936 * eval: (c-set-style "gnu")