1 /* SPDX-License-Identifier: Apache-2.0
2 * Copyright (c) 2023 Cisco Systems, Inc.
6 #include <vnet/dev/dev.h>
7 #include <vnet/dev/bus/pci.h>
8 #include <vnet/dev/counters.h>
9 #include <dev_iavf/iavf.h>
10 #include <dev_iavf/iavf_regs.h>
11 #include <dev_iavf/virtchnl.h>
12 #include <dev_iavf/virtchnl_funcs.h>
13 #include <vnet/ethernet/ethernet.h>
15 VLIB_REGISTER_LOG_CLASS (iavf_log, static) = {
17 .subclass_name = "port",
20 static const u8 default_rss_key[] = {
21 0x44, 0x39, 0x79, 0x6b, 0xb5, 0x4c, 0x50, 0x23, 0xb6, 0x75, 0xea, 0x5b, 0x12,
22 0x4f, 0x9f, 0x30, 0xb8, 0xa2, 0xc0, 0x3d, 0xdf, 0xdc, 0x4d, 0x02, 0xa0, 0x8c,
23 0x9b, 0x33, 0x4a, 0xf6, 0x4a, 0x4c, 0x05, 0xc6, 0xfa, 0x34, 0x39, 0x58, 0xd8,
24 0x55, 0x7d, 0x99, 0x58, 0x3a, 0xe1, 0x38, 0xc9, 0x2e, 0x81, 0x15, 0x03, 0x66,
27 const static iavf_dyn_ctl dyn_ctln_disabled = {};
28 const static iavf_dyn_ctl dyn_ctln_enabled = {
31 .interval = IAVF_ITR_INT / 2,
33 const static iavf_dyn_ctl dyn_ctln_wb_on_itr = {
40 iavf_port_vlan_strip_disable (vlib_main_t *vm, vnet_dev_port_t *port)
42 vnet_dev_t *dev = port->dev;
43 iavf_port_t *ap = vnet_dev_get_port_data (port);
44 virtchnl_vlan_caps_t vc;
45 vnet_dev_rv_t rv = VNET_DEV_ERR_NOT_SUPPORTED;
47 const u32 mask = VIRTCHNL_VLAN_ETHERTYPE_8100;
49 if (ap->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN_V2)
51 if ((rv = iavf_vc_op_get_offload_vlan_v2_caps (vm, dev, &vc)))
54 outer = vc.offloads.stripping_support.outer;
55 inner = vc.offloads.stripping_support.inner;
57 outer = outer & VIRTCHNL_VLAN_TOGGLE ? outer & mask : 0;
58 inner = inner & VIRTCHNL_VLAN_TOGGLE ? inner & mask : 0;
60 virtchnl_vlan_setting_t vs = {
61 .vport_id = ap->vsi_id,
62 .outer_ethertype_setting = outer,
63 .inner_ethertype_setting = inner,
66 if ((rv = iavf_vc_op_disable_vlan_stripping_v2 (vm, dev, &vs)))
70 if (ap->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
71 return iavf_vc_op_disable_vlan_stripping (vm, dev);
77 iavf_port_init_rss (vlib_main_t *vm, vnet_dev_port_t *port)
79 vnet_dev_t *dev = port->dev;
80 iavf_port_t *ap = vnet_dev_get_port_data (port);
81 u16 keylen = clib_min (sizeof (default_rss_key), ap->rss_key_size);
82 u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_rss_key_t, key, keylen)];
83 virtchnl_rss_key_t *key = (virtchnl_rss_key_t *) buffer;
85 if (!port->attr.caps.rss)
89 *key = (virtchnl_rss_key_t){
94 clib_memcpy (key->key, default_rss_key, keylen);
96 return iavf_vc_op_config_rss_key (vm, dev, key);
100 iavf_port_update_rss_lut (vlib_main_t *vm, vnet_dev_port_t *port)
102 vnet_dev_t *dev = port->dev;
103 iavf_port_t *ap = vnet_dev_get_port_data (port);
104 u16 lut_size = clib_min (IAVF_MAX_RSS_LUT_SIZE, ap->rss_lut_size);
105 u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_rss_lut_t, lut, lut_size)];
106 virtchnl_rss_lut_t *lut = (virtchnl_rss_lut_t *) buffer;
107 u32 enabled_rxq_bmp = 0;
109 if (!port->attr.caps.rss)
112 *lut = (virtchnl_rss_lut_t){
113 .vsi_id = ap->vsi_id,
114 .lut_entries = lut_size,
117 foreach_vnet_dev_port_rx_queue (q, port)
119 enabled_rxq_bmp |= 1ULL << q->queue_id;
122 for (u32 i = 0, j; i < lut->lut_entries;)
123 foreach_set_bit_index (j, enabled_rxq_bmp)
126 if (i >= lut->lut_entries)
130 return iavf_vc_op_config_rss_lut (vm, dev, lut);
134 iavf_port_init_vsi_queues (vlib_main_t *vm, vnet_dev_port_t *port)
136 vnet_dev_t *dev = port->dev;
137 iavf_port_t *ap = vnet_dev_get_port_data (port);
138 virtchnl_queue_pair_info_t *qpi;
139 u16 vsi_id = ap->vsi_id;
140 u16 data_size = vlib_buffer_get_default_data_size (vm);
141 u16 max_frame_size = port->max_rx_frame_size;
142 u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_vsi_queue_config_info_t, qpair,
144 virtchnl_vsi_queue_config_info_t *ci =
145 (virtchnl_vsi_queue_config_info_t *) buffer;
147 *ci = (virtchnl_vsi_queue_config_info_t){
148 .num_queue_pairs = ap->num_qp,
152 for (u16 i = 0; i < ap->num_qp; i++)
153 ci->qpair[i] = (virtchnl_queue_pair_info_t){
154 .rxq = { .vsi_id = vsi_id,
156 .max_pkt_size = ETHERNET_MIN_PACKET_BYTES },
157 .txq = { .vsi_id = vsi_id, .queue_id = i },
160 foreach_vnet_dev_port_rx_queue (q, port)
162 iavf_rxq_t *arq = vnet_dev_get_rx_queue_data (q);
163 qpi = ci->qpair + q->queue_id;
164 qpi->rxq.ring_len = q->size;
165 qpi->rxq.databuffer_size = data_size;
166 qpi->rxq.dma_ring_addr = vnet_dev_get_dma_addr (vm, dev, arq->descs);
167 qpi->rxq.max_pkt_size = max_frame_size;
170 foreach_vnet_dev_port_tx_queue (q, port)
172 iavf_txq_t *atq = vnet_dev_get_tx_queue_data (q);
173 qpi = ci->qpair + q->queue_id;
174 qpi->txq.ring_len = q->size;
175 qpi->txq.dma_ring_addr = vnet_dev_get_dma_addr (vm, dev, atq->descs);
178 return iavf_vc_op_config_vsi_queues (vm, dev, ci);
182 iavf_port_rx_irq_config (vlib_main_t *vm, vnet_dev_port_t *port, int enable)
184 vnet_dev_t *dev = port->dev;
185 iavf_device_t *ad = vnet_dev_get_data (dev);
186 iavf_port_t *ap = vnet_dev_get_port_data (port);
187 u16 n_rx_vectors = ap->n_rx_vectors;
188 u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_irq_map_info_t, vecmap, n_rx_vectors)];
189 u8 n_intr_mode_queues_per_vector[n_rx_vectors];
190 u8 n_queues_per_vector[n_rx_vectors];
191 virtchnl_irq_map_info_t *im = (virtchnl_irq_map_info_t *) buffer;
194 log_debug (dev, "intr mode per queue bitmap 0x%x",
195 ap->intr_mode_per_rxq_bitmap);
197 for (u32 i = 0; i < n_rx_vectors; i++)
198 n_intr_mode_queues_per_vector[i] = n_queues_per_vector[i] = 0;
200 *im = (virtchnl_irq_map_info_t){
201 .num_vectors = n_rx_vectors,
204 if (port->attr.caps.interrupt_mode)
206 for (u16 i = 0; i < im->num_vectors; i++)
207 im->vecmap[i] = (virtchnl_vector_map_t){
208 .vsi_id = ap->vsi_id,
212 foreach_vnet_dev_port_rx_queue (rxq, port)
215 u32 i = rxq->rx_thread_index;
216 im->vecmap[i].rxq_map |= 1 << rxq->queue_id;
217 n_queues_per_vector[i]++;
218 n_intr_mode_queues_per_vector[i] +=
219 u64_is_bit_set (ap->intr_mode_per_rxq_bitmap, rxq->queue_id);
224 im->vecmap[0] = (virtchnl_vector_map_t){
225 .vsi_id = ap->vsi_id,
229 foreach_vnet_dev_port_rx_queue (rxq, port)
231 im->vecmap[0].rxq_map |= 1 << rxq->queue_id;
234 if ((rv = iavf_vc_op_config_irq_map (vm, dev, im)))
237 for (int i = 0; i < n_rx_vectors; i++)
241 if (enable == 0 || n_queues_per_vector[i] == 0)
242 val = dyn_ctln_disabled.as_u32;
243 else if (ap->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR &&
244 n_intr_mode_queues_per_vector[i] == 0)
245 val = dyn_ctln_wb_on_itr.as_u32;
247 val = dyn_ctln_enabled.as_u32;
249 iavf_reg_write (ad, IAVF_VFINT_DYN_CTLN (i), val);
250 log_debug (dev, "VFINT_DYN_CTLN(%u) set to 0x%x", i, val);
257 avf_msix_n_handler (vlib_main_t *vm, vnet_dev_t *dev, u16 line)
259 iavf_device_t *ad = vnet_dev_get_data (dev);
260 vnet_dev_port_t *port = vnet_dev_get_port_by_id (dev, 0);
264 iavf_reg_write (ad, IAVF_VFINT_DYN_CTLN (line), dyn_ctln_enabled.as_u32);
265 vlib_node_set_interrupt_pending (vlib_get_main_by_index (line),
266 port->intf.rx_node_index);
270 iavf_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
272 vnet_dev_t *dev = port->dev;
273 iavf_port_t *ap = vnet_dev_get_port_data (port);
276 log_debug (port->dev, "port %u", port->port_id);
278 ap->intr_mode_per_rxq_bitmap = 0;
279 foreach_vnet_dev_port_rx_queue (q, port)
280 if (q->interrupt_mode)
281 u64_bit_set (&ap->intr_mode_per_rxq_bitmap, q->queue_id, 1);
283 if ((rv = iavf_port_vlan_strip_disable (vm, port)))
285 if (rv == VNET_DEV_ERR_NOT_SUPPORTED)
286 log_warn (port->dev, "device doesn't support vlan stripping");
291 if ((rv = iavf_port_init_rss (vm, port)))
294 vnet_dev_pci_msix_add_handler (vm, dev, &avf_msix_n_handler, 1,
296 vnet_dev_pci_msix_enable (vm, dev, 1, ap->n_rx_vectors);
297 for (u32 i = 1; i < ap->n_rx_vectors; i++)
298 vnet_dev_pci_msix_set_polling_thread (vm, dev, i + 1, i);
300 if (port->dev->poll_stats)
301 iavf_port_add_counters (vm, port);
307 iavf_enable_disable_queues (vlib_main_t *vm, vnet_dev_port_t *port, int enable)
309 iavf_port_t *ap = vnet_dev_get_port_data (port);
311 virtchnl_queue_select_t qs = {
312 .vsi_id = ap->vsi_id,
315 foreach_vnet_dev_port_rx_queue (q, port)
316 if ((enable && q->enabled) || (!enable && q->started))
317 qs.rx_queues |= 1ULL << q->queue_id;
319 foreach_vnet_dev_port_tx_queue (q, port)
320 if ((enable && q->enabled) || (!enable && q->started))
321 qs.tx_queues |= 1ULL << q->queue_id;
323 return enable ? iavf_vc_op_enable_queues (vm, port->dev, &qs) :
324 iavf_vc_op_disable_queues (vm, port->dev, &qs);
328 iavf_port_start (vlib_main_t *vm, vnet_dev_port_t *port)
332 log_debug (port->dev, "port %u", port->port_id);
334 foreach_vnet_dev_port_rx_queue (q, port)
336 if ((rv = iavf_rx_queue_start (vm, q)))
339 foreach_vnet_dev_port_tx_queue (q, port)
340 if ((rv = iavf_tx_queue_start (vm, q)))
343 if ((rv = iavf_port_update_rss_lut (vm, port)))
346 /* configure qpairs */
347 if ((rv = iavf_port_init_vsi_queues (vm, port)))
350 if ((rv = iavf_port_rx_irq_config (vm, port, /* enable */ 1)))
353 if ((rv = iavf_enable_disable_queues (vm, port, 1)))
356 if (port->dev->poll_stats)
357 vnet_dev_poll_port_add (vm, port, 1, iavf_port_poll_stats);
362 foreach_vnet_dev_port_rx_queue (q, port)
363 iavf_rx_queue_stop (vm, q);
364 foreach_vnet_dev_port_tx_queue (q, port)
365 iavf_tx_queue_stop (vm, q);
371 iavf_port_stop (vlib_main_t *vm, vnet_dev_port_t *port)
373 log_debug (port->dev, "port %u", port->port_id);
375 iavf_enable_disable_queues (vm, port, /* enable */ 0);
376 iavf_port_rx_irq_config (vm, port, /* disable */ 0);
378 if (port->dev->poll_stats)
379 vnet_dev_poll_port_remove (vm, port, iavf_port_poll_stats);
381 foreach_vnet_dev_port_rx_queue (rxq, port)
382 iavf_rx_queue_stop (vm, rxq);
384 foreach_vnet_dev_port_tx_queue (txq, port)
385 iavf_tx_queue_stop (vm, txq);
387 vnet_dev_port_state_change (vm, port,
388 (vnet_dev_port_state_changes_t){
389 .change.link_state = 1,
390 .change.link_speed = 1,
397 iavf_port_cfg_change_validate (vlib_main_t *vm, vnet_dev_port_t *port,
398 vnet_dev_port_cfg_change_req_t *req)
400 vnet_dev_rv_t rv = VNET_DEV_OK;
404 case VNET_DEV_PORT_CFG_MAX_RX_FRAME_SIZE:
406 rv = VNET_DEV_ERR_PORT_STARTED;
409 case VNET_DEV_PORT_CFG_PROMISC_MODE:
410 case VNET_DEV_PORT_CFG_CHANGE_PRIMARY_HW_ADDR:
411 case VNET_DEV_PORT_CFG_ADD_SECONDARY_HW_ADDR:
412 case VNET_DEV_PORT_CFG_REMOVE_SECONDARY_HW_ADDR:
416 rv = VNET_DEV_ERR_NOT_SUPPORTED;
423 iavf_port_add_del_eth_addr (vlib_main_t *vm, vnet_dev_port_t *port,
424 vnet_dev_hw_addr_t *addr, int is_add,
427 iavf_port_t *ap = vnet_dev_get_port_data (port);
428 u8 buffer[VIRTCHNL_MSG_SZ (virtchnl_ether_addr_list_t, list, 1)];
429 virtchnl_ether_addr_list_t *al = (virtchnl_ether_addr_list_t *) buffer;
431 *al = (virtchnl_ether_addr_list_t){
432 .vsi_id = ap->vsi_id,
434 .list[0].primary = is_primary ? 1 : 0,
435 .list[0].extra = is_primary ? 0 : 1,
438 clib_memcpy (al->list[0].addr, addr, sizeof (al->list[0].addr));
440 return is_add ? iavf_vc_op_add_eth_addr (vm, port->dev, al) :
441 iavf_vc_op_del_eth_addr (vm, port->dev, al);
445 iavf_port_cfg_rxq_int_mode_change (vlib_main_t *vm, vnet_dev_port_t *port,
446 u16 qid, u8 state, u8 all)
448 vnet_dev_rv_t rv = VNET_DEV_OK;
449 iavf_port_t *ap = vnet_dev_get_port_data (port);
450 vnet_dev_t *dev = port->dev;
451 char *ed = state ? "ena" : "disa";
456 old = ap->intr_mode_per_rxq_bitmap;
460 snprintf (qstr, sizeof (qstr), "all queues");
462 foreach_vnet_dev_port_rx_queue (q, port)
463 u64_bit_set (&new, q->queue_id, 1);
467 snprintf (qstr, sizeof (qstr), "queue %u", qid);
469 u64_bit_set (&new, qid, state);
474 log_warn (dev, "interrupt mode already %sbled on %s", ed, qstr);
478 ap->intr_mode_per_rxq_bitmap = new;
482 if ((rv = iavf_port_rx_irq_config (vm, port, 1)))
484 ap->intr_mode_per_rxq_bitmap = old;
485 log_err (dev, "failed to %sble interrupt mode on %s", ed, qstr);
490 log_debug (dev, "interrupt mode %sbled on %s, new bitmap is 0x%x", ed, qstr,
496 iavf_port_cfg_change (vlib_main_t *vm, vnet_dev_port_t *port,
497 vnet_dev_port_cfg_change_req_t *req)
499 vnet_dev_t *dev = port->dev;
500 iavf_port_t *ap = vnet_dev_get_port_data (port);
501 vnet_dev_rv_t rv = VNET_DEV_OK;
505 case VNET_DEV_PORT_CFG_PROMISC_MODE:
507 virtchnl_promisc_info_t pi = {
508 .vsi_id = ap->vsi_id,
509 .unicast_promisc = req->promisc,
510 .multicast_promisc = req->promisc,
513 rv = iavf_vc_op_config_promisc_mode (vm, dev, &pi);
517 case VNET_DEV_PORT_CFG_CHANGE_PRIMARY_HW_ADDR:
518 rv = iavf_port_add_del_eth_addr (vm, port, &port->primary_hw_addr,
521 if (rv == VNET_DEV_OK)
522 rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
527 case VNET_DEV_PORT_CFG_ADD_SECONDARY_HW_ADDR:
528 rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
533 case VNET_DEV_PORT_CFG_REMOVE_SECONDARY_HW_ADDR:
534 rv = iavf_port_add_del_eth_addr (vm, port, &req->addr,
539 case VNET_DEV_PORT_CFG_MAX_RX_FRAME_SIZE:
542 case VNET_DEV_PORT_CFG_RXQ_INTR_MODE_ENABLE:
543 rv = iavf_port_cfg_rxq_int_mode_change (vm, port, req->queue_id, 1,
547 case VNET_DEV_PORT_CFG_RXQ_INTR_MODE_DISABLE:
548 rv = iavf_port_cfg_rxq_int_mode_change (vm, port, req->queue_id, 0,
553 return VNET_DEV_ERR_NOT_SUPPORTED;