2 * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * Copyright (c) 2014, Cisco Systems, Inc.
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40 #include <rte_ethdev.h>
41 #include <rte_string_fns.h>
43 #include "vnic_intr.h"
47 #include "vnic_enet.h"
50 #ifdef RTE_LIBRTE_ENIC_DEBUG
51 #define ENICPMD_FUNC_TRACE() \
52 RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__)
54 #define ENICPMD_FUNC_TRACE() (void)0
58 * The set of PCI devices this driver supports
60 #define CISCO_PCI_VENDOR_ID 0x1137
61 static const struct rte_pci_id pci_id_enic_map[] = {
62 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
63 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
64 {.vendor_id = 0, /* sentinel */},
68 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
69 enum rte_filter_op filter_op, void *arg)
71 struct enic *enic = pmd_priv(eth_dev);
75 if (filter_op == RTE_ETH_FILTER_NOP)
78 if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
82 case RTE_ETH_FILTER_ADD:
83 case RTE_ETH_FILTER_UPDATE:
84 ret = enic_fdir_add_fltr(enic,
85 (struct rte_eth_fdir_filter *)arg);
88 case RTE_ETH_FILTER_DELETE:
89 ret = enic_fdir_del_fltr(enic,
90 (struct rte_eth_fdir_filter *)arg);
93 case RTE_ETH_FILTER_STATS:
94 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
97 case RTE_ETH_FILTER_FLUSH:
98 case RTE_ETH_FILTER_INFO:
99 dev_warning(enic, "unsupported operation %u", filter_op);
103 dev_err(enic, "unknown operation %u", filter_op);
111 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
112 enum rte_filter_type filter_type,
113 enum rte_filter_op filter_op,
118 if (RTE_ETH_FILTER_FDIR == filter_type)
119 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
121 dev_warning(enic, "Filter type (%d) not supported",
127 static void enicpmd_dev_tx_queue_release(void *txq)
129 ENICPMD_FUNC_TRACE();
133 static int enicpmd_dev_setup_intr(struct enic *enic)
138 ENICPMD_FUNC_TRACE();
140 /* Are we done with the init of all the queues? */
141 for (index = 0; index < enic->cq_count; index++) {
142 if (!enic->cq[index].ctrl)
145 if (enic->cq_count != index)
147 for (index = 0; index < enic->wq_count; index++) {
148 if (!enic->wq[index].ctrl)
151 if (enic->wq_count != index)
153 /* check start of packet (SOP) RQs only in case scatter is disabled. */
154 for (index = 0; index < enic->rq_count; index++) {
155 if (!enic->rq[enic_sop_rq(index)].ctrl)
158 if (enic->rq_count != index)
161 ret = enic_alloc_intr_resources(enic);
163 dev_err(enic, "alloc intr failed\n");
166 enic_init_vnic_resources(enic);
168 ret = enic_setup_finish(enic);
170 dev_err(enic, "setup could not be finished\n");
175 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
178 unsigned int socket_id,
179 __rte_unused const struct rte_eth_txconf *tx_conf)
182 struct enic *enic = pmd_priv(eth_dev);
184 ENICPMD_FUNC_TRACE();
185 if (queue_idx >= ENIC_WQ_MAX) {
187 "Max number of TX queues exceeded. Max is %d\n",
192 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
194 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
196 dev_err(enic, "error in allocating wq\n");
200 return enicpmd_dev_setup_intr(enic);
203 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
206 struct enic *enic = pmd_priv(eth_dev);
208 ENICPMD_FUNC_TRACE();
210 enic_start_wq(enic, queue_idx);
215 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
219 struct enic *enic = pmd_priv(eth_dev);
221 ENICPMD_FUNC_TRACE();
223 ret = enic_stop_wq(enic, queue_idx);
225 dev_err(enic, "error in stopping wq %d\n", queue_idx);
230 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
233 struct enic *enic = pmd_priv(eth_dev);
235 ENICPMD_FUNC_TRACE();
237 enic_start_rq(enic, queue_idx);
242 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
246 struct enic *enic = pmd_priv(eth_dev);
248 ENICPMD_FUNC_TRACE();
250 ret = enic_stop_rq(enic, queue_idx);
252 dev_err(enic, "error in stopping rq %d\n", queue_idx);
257 static void enicpmd_dev_rx_queue_release(void *rxq)
259 ENICPMD_FUNC_TRACE();
263 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
264 uint16_t rx_queue_id)
266 struct enic *enic = pmd_priv(dev);
267 uint32_t queue_count = 0;
273 if (rx_queue_id >= dev->data->nb_rx_queues) {
274 dev_err(enic, "Invalid RX queue id=%d", rx_queue_id);
278 rq_num = enic_sop_rq(rx_queue_id);
279 cq = &enic->cq[enic_cq_rq(enic, rq_num)];
280 cq_idx = cq->to_clean;
282 cq_tail = ioread32(&cq->ctrl->cq_tail);
284 if (cq_tail < cq_idx)
285 cq_tail += cq->ring.desc_count;
287 queue_count = cq_tail - cq_idx;
292 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
295 unsigned int socket_id,
296 const struct rte_eth_rxconf *rx_conf,
297 struct rte_mempool *mp)
300 struct enic *enic = pmd_priv(eth_dev);
302 ENICPMD_FUNC_TRACE();
303 /* With Rx scatter support, two RQs are now used on VIC per RQ used
304 * by the application.
306 if (queue_idx * 2 >= ENIC_RQ_MAX) {
308 "Max number of RX queues exceeded. Max is %d. This PMD uses 2 RQs on VIC per RQ used by DPDK.\n",
313 eth_dev->data->rx_queues[queue_idx] =
314 (void *)&enic->rq[enic_sop_rq(queue_idx)];
316 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc);
318 dev_err(enic, "error in allocating rq\n");
322 enic->rq[queue_idx].rx_free_thresh = rx_conf->rx_free_thresh;
323 dev_debug(enic, "Set queue_id:%u free thresh:%u\n", queue_idx,
324 enic->rq[queue_idx].rx_free_thresh);
326 return enicpmd_dev_setup_intr(enic);
329 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
330 uint16_t vlan_id, int on)
332 struct enic *enic = pmd_priv(eth_dev);
335 ENICPMD_FUNC_TRACE();
337 err = enic_add_vlan(enic, vlan_id);
339 err = enic_del_vlan(enic, vlan_id);
343 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
345 struct enic *enic = pmd_priv(eth_dev);
347 ENICPMD_FUNC_TRACE();
349 if (mask & ETH_VLAN_STRIP_MASK) {
350 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
351 enic->ig_vlan_strip_en = 1;
353 enic->ig_vlan_strip_en = 0;
355 enic_set_rss_nic_cfg(enic);
358 if (mask & ETH_VLAN_FILTER_MASK) {
360 "Configuration of VLAN filter is not supported\n");
363 if (mask & ETH_VLAN_EXTEND_MASK) {
365 "Configuration of extended VLAN is not supported\n");
369 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
372 struct enic *enic = pmd_priv(eth_dev);
374 ENICPMD_FUNC_TRACE();
375 ret = enic_set_vnic_res(enic);
377 dev_err(enic, "Set vNIC resource num failed, aborting\n");
381 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
382 eth_dev->data->dev_conf.rxmode.header_split) {
383 /* Enable header-data-split */
384 enic_set_hdr_split_size(enic,
385 eth_dev->data->dev_conf.rxmode.split_hdr_size);
388 enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
389 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
394 * It returns 0 on success.
396 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
398 struct enic *enic = pmd_priv(eth_dev);
400 ENICPMD_FUNC_TRACE();
401 return enic_enable(enic);
405 * Stop device: disable rx and tx functions to allow for reconfiguring.
407 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
409 struct rte_eth_link link;
410 struct enic *enic = pmd_priv(eth_dev);
412 ENICPMD_FUNC_TRACE();
414 memset(&link, 0, sizeof(link));
415 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
416 *(uint64_t *)ð_dev->data->dev_link,
423 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
425 struct enic *enic = pmd_priv(eth_dev);
427 ENICPMD_FUNC_TRACE();
431 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
432 __rte_unused int wait_to_complete)
434 struct enic *enic = pmd_priv(eth_dev);
438 ENICPMD_FUNC_TRACE();
439 link_status = enic_get_link_status(enic);
440 ret = (link_status == enic->link_status);
441 enic->link_status = link_status;
442 eth_dev->data->dev_link.link_status = link_status;
443 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
444 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
448 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
449 struct rte_eth_stats *stats)
451 struct enic *enic = pmd_priv(eth_dev);
453 ENICPMD_FUNC_TRACE();
454 enic_dev_stats_get(enic, stats);
457 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
459 struct enic *enic = pmd_priv(eth_dev);
461 ENICPMD_FUNC_TRACE();
462 enic_dev_stats_clear(enic);
465 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
466 struct rte_eth_dev_info *device_info)
468 struct enic *enic = pmd_priv(eth_dev);
470 ENICPMD_FUNC_TRACE();
471 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
472 device_info->max_rx_queues = enic->conf_rq_count / 2;
473 device_info->max_tx_queues = enic->conf_wq_count;
474 device_info->min_rx_bufsize = ENIC_MIN_MTU;
475 device_info->max_rx_pktlen = enic->rte_dev->data->mtu
477 device_info->max_mac_addrs = 1;
478 device_info->rx_offload_capa =
479 DEV_RX_OFFLOAD_VLAN_STRIP |
480 DEV_RX_OFFLOAD_IPV4_CKSUM |
481 DEV_RX_OFFLOAD_UDP_CKSUM |
482 DEV_RX_OFFLOAD_TCP_CKSUM;
483 device_info->tx_offload_capa =
484 DEV_TX_OFFLOAD_VLAN_INSERT |
485 DEV_TX_OFFLOAD_IPV4_CKSUM |
486 DEV_TX_OFFLOAD_UDP_CKSUM |
487 DEV_TX_OFFLOAD_TCP_CKSUM;
488 device_info->default_rxconf = (struct rte_eth_rxconf) {
489 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
493 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
495 static const uint32_t ptypes[] = {
496 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
497 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
501 RTE_PTYPE_L4_NONFRAG,
505 if (dev->rx_pkt_burst == enic_recv_pkts)
510 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
512 struct enic *enic = pmd_priv(eth_dev);
514 ENICPMD_FUNC_TRACE();
516 enic_add_packet_filter(enic);
519 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
521 struct enic *enic = pmd_priv(eth_dev);
523 ENICPMD_FUNC_TRACE();
525 enic_add_packet_filter(enic);
528 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
530 struct enic *enic = pmd_priv(eth_dev);
532 ENICPMD_FUNC_TRACE();
534 enic_add_packet_filter(enic);
537 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
539 struct enic *enic = pmd_priv(eth_dev);
541 ENICPMD_FUNC_TRACE();
543 enic_add_packet_filter(enic);
546 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
547 struct ether_addr *mac_addr,
548 __rte_unused uint32_t index, __rte_unused uint32_t pool)
550 struct enic *enic = pmd_priv(eth_dev);
552 ENICPMD_FUNC_TRACE();
553 enic_set_mac_address(enic, mac_addr->addr_bytes);
556 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused uint32_t index)
558 struct enic *enic = pmd_priv(eth_dev);
560 ENICPMD_FUNC_TRACE();
561 enic_del_mac_address(enic);
564 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
566 struct enic *enic = pmd_priv(eth_dev);
568 ENICPMD_FUNC_TRACE();
569 return enic_set_mtu(enic, mtu);
572 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
573 .dev_configure = enicpmd_dev_configure,
574 .dev_start = enicpmd_dev_start,
575 .dev_stop = enicpmd_dev_stop,
576 .dev_set_link_up = NULL,
577 .dev_set_link_down = NULL,
578 .dev_close = enicpmd_dev_close,
579 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
580 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
581 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
582 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
583 .link_update = enicpmd_dev_link_update,
584 .stats_get = enicpmd_dev_stats_get,
585 .stats_reset = enicpmd_dev_stats_reset,
586 .queue_stats_mapping_set = NULL,
587 .dev_infos_get = enicpmd_dev_info_get,
588 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
589 .mtu_set = enicpmd_mtu_set,
590 .vlan_filter_set = enicpmd_vlan_filter_set,
591 .vlan_tpid_set = NULL,
592 .vlan_offload_set = enicpmd_vlan_offload_set,
593 .vlan_strip_queue_set = NULL,
594 .rx_queue_start = enicpmd_dev_rx_queue_start,
595 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
596 .tx_queue_start = enicpmd_dev_tx_queue_start,
597 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
598 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
599 .rx_queue_release = enicpmd_dev_rx_queue_release,
600 .rx_queue_count = enicpmd_dev_rx_queue_count,
601 .rx_descriptor_done = NULL,
602 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
603 .tx_queue_release = enicpmd_dev_tx_queue_release,
606 .flow_ctrl_get = NULL,
607 .flow_ctrl_set = NULL,
608 .priority_flow_ctrl_set = NULL,
609 .mac_addr_add = enicpmd_add_mac_addr,
610 .mac_addr_remove = enicpmd_remove_mac_addr,
611 .filter_ctrl = enicpmd_dev_filter_ctrl,
614 struct enic *enicpmd_list_head = NULL;
615 /* Initialize the driver
616 * It returns 0 on success.
618 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
620 struct rte_pci_device *pdev;
621 struct rte_pci_addr *addr;
622 struct enic *enic = pmd_priv(eth_dev);
624 ENICPMD_FUNC_TRACE();
626 enic->port_id = eth_dev->data->port_id;
627 enic->rte_dev = eth_dev;
628 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
629 eth_dev->rx_pkt_burst = &enic_recv_pkts;
630 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
632 pdev = eth_dev->pci_dev;
633 rte_eth_copy_pci_info(eth_dev, pdev);
637 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
638 addr->domain, addr->bus, addr->devid, addr->function);
640 return enic_probe(enic);
643 static struct eth_driver rte_enic_pmd = {
645 .id_table = pci_id_enic_map,
646 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
647 .probe = rte_eth_dev_pci_probe,
648 .remove = rte_eth_dev_pci_remove,
650 .eth_dev_init = eth_enicpmd_dev_init,
651 .dev_private_size = sizeof(struct enic),
654 DRIVER_REGISTER_PCI(net_enic, rte_enic_pmd.pci_drv);
655 DRIVER_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);