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 dev_warning(enic, "unsupported operation %u", filter_op);
101 case RTE_ETH_FILTER_INFO:
102 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
105 dev_err(enic, "unknown operation %u", filter_op);
113 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
114 enum rte_filter_type filter_type,
115 enum rte_filter_op filter_op,
120 if (RTE_ETH_FILTER_FDIR == filter_type)
121 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
123 dev_warning(enic, "Filter type (%d) not supported",
129 static void enicpmd_dev_tx_queue_release(void *txq)
131 ENICPMD_FUNC_TRACE();
135 static int enicpmd_dev_setup_intr(struct enic *enic)
140 ENICPMD_FUNC_TRACE();
142 /* Are we done with the init of all the queues? */
143 for (index = 0; index < enic->cq_count; index++) {
144 if (!enic->cq[index].ctrl)
147 if (enic->cq_count != index)
149 for (index = 0; index < enic->wq_count; index++) {
150 if (!enic->wq[index].ctrl)
153 if (enic->wq_count != index)
155 /* check start of packet (SOP) RQs only in case scatter is disabled. */
156 for (index = 0; index < enic->rq_count; index++) {
157 if (!enic->rq[enic_sop_rq(index)].ctrl)
160 if (enic->rq_count != index)
163 ret = enic_alloc_intr_resources(enic);
165 dev_err(enic, "alloc intr failed\n");
168 enic_init_vnic_resources(enic);
170 ret = enic_setup_finish(enic);
172 dev_err(enic, "setup could not be finished\n");
177 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
180 unsigned int socket_id,
181 __rte_unused const struct rte_eth_txconf *tx_conf)
184 struct enic *enic = pmd_priv(eth_dev);
186 ENICPMD_FUNC_TRACE();
187 if (queue_idx >= ENIC_WQ_MAX) {
189 "Max number of TX queues exceeded. Max is %d\n",
194 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
196 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
198 dev_err(enic, "error in allocating wq\n");
202 return enicpmd_dev_setup_intr(enic);
205 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
208 struct enic *enic = pmd_priv(eth_dev);
210 ENICPMD_FUNC_TRACE();
212 enic_start_wq(enic, queue_idx);
217 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
221 struct enic *enic = pmd_priv(eth_dev);
223 ENICPMD_FUNC_TRACE();
225 ret = enic_stop_wq(enic, queue_idx);
227 dev_err(enic, "error in stopping wq %d\n", queue_idx);
232 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
235 struct enic *enic = pmd_priv(eth_dev);
237 ENICPMD_FUNC_TRACE();
239 enic_start_rq(enic, queue_idx);
244 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
248 struct enic *enic = pmd_priv(eth_dev);
250 ENICPMD_FUNC_TRACE();
252 ret = enic_stop_rq(enic, queue_idx);
254 dev_err(enic, "error in stopping rq %d\n", queue_idx);
259 static void enicpmd_dev_rx_queue_release(void *rxq)
261 ENICPMD_FUNC_TRACE();
265 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
266 uint16_t rx_queue_id)
268 struct enic *enic = pmd_priv(dev);
269 uint32_t queue_count = 0;
275 if (rx_queue_id >= dev->data->nb_rx_queues) {
276 dev_err(enic, "Invalid RX queue id=%d", rx_queue_id);
280 rq_num = enic_sop_rq(rx_queue_id);
281 cq = &enic->cq[enic_cq_rq(enic, rq_num)];
282 cq_idx = cq->to_clean;
284 cq_tail = ioread32(&cq->ctrl->cq_tail);
286 if (cq_tail < cq_idx)
287 cq_tail += cq->ring.desc_count;
289 queue_count = cq_tail - cq_idx;
294 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
297 unsigned int socket_id,
298 const struct rte_eth_rxconf *rx_conf,
299 struct rte_mempool *mp)
302 struct enic *enic = pmd_priv(eth_dev);
304 ENICPMD_FUNC_TRACE();
305 /* With Rx scatter support, two RQs are now used on VIC per RQ used
306 * by the application.
308 if (queue_idx * 2 >= ENIC_RQ_MAX) {
310 "Max number of RX queues exceeded. Max is %d. This PMD uses 2 RQs on VIC per RQ used by DPDK.\n",
315 eth_dev->data->rx_queues[queue_idx] =
316 (void *)&enic->rq[enic_sop_rq(queue_idx)];
318 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc);
320 dev_err(enic, "error in allocating rq\n");
324 enic->rq[queue_idx].rx_free_thresh = rx_conf->rx_free_thresh;
325 dev_debug(enic, "Set queue_id:%u free thresh:%u\n", queue_idx,
326 enic->rq[queue_idx].rx_free_thresh);
328 return enicpmd_dev_setup_intr(enic);
331 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
332 uint16_t vlan_id, int on)
334 struct enic *enic = pmd_priv(eth_dev);
337 ENICPMD_FUNC_TRACE();
339 err = enic_add_vlan(enic, vlan_id);
341 err = enic_del_vlan(enic, vlan_id);
345 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
347 struct enic *enic = pmd_priv(eth_dev);
349 ENICPMD_FUNC_TRACE();
351 if (mask & ETH_VLAN_STRIP_MASK) {
352 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
353 enic->ig_vlan_strip_en = 1;
355 enic->ig_vlan_strip_en = 0;
357 enic_set_rss_nic_cfg(enic);
360 if (mask & ETH_VLAN_FILTER_MASK) {
362 "Configuration of VLAN filter is not supported\n");
365 if (mask & ETH_VLAN_EXTEND_MASK) {
367 "Configuration of extended VLAN is not supported\n");
371 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
374 struct enic *enic = pmd_priv(eth_dev);
376 ENICPMD_FUNC_TRACE();
377 ret = enic_set_vnic_res(enic);
379 dev_err(enic, "Set vNIC resource num failed, aborting\n");
383 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
384 eth_dev->data->dev_conf.rxmode.header_split) {
385 /* Enable header-data-split */
386 enic_set_hdr_split_size(enic,
387 eth_dev->data->dev_conf.rxmode.split_hdr_size);
390 enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
391 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
396 * It returns 0 on success.
398 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
400 struct enic *enic = pmd_priv(eth_dev);
402 ENICPMD_FUNC_TRACE();
403 return enic_enable(enic);
407 * Stop device: disable rx and tx functions to allow for reconfiguring.
409 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
411 struct rte_eth_link link;
412 struct enic *enic = pmd_priv(eth_dev);
414 ENICPMD_FUNC_TRACE();
416 memset(&link, 0, sizeof(link));
417 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
418 *(uint64_t *)ð_dev->data->dev_link,
425 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
427 struct enic *enic = pmd_priv(eth_dev);
429 ENICPMD_FUNC_TRACE();
433 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
434 __rte_unused int wait_to_complete)
436 struct enic *enic = pmd_priv(eth_dev);
438 ENICPMD_FUNC_TRACE();
439 return enic_link_update(enic);
442 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
443 struct rte_eth_stats *stats)
445 struct enic *enic = pmd_priv(eth_dev);
447 ENICPMD_FUNC_TRACE();
448 enic_dev_stats_get(enic, stats);
451 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
453 struct enic *enic = pmd_priv(eth_dev);
455 ENICPMD_FUNC_TRACE();
456 enic_dev_stats_clear(enic);
459 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
460 struct rte_eth_dev_info *device_info)
462 struct enic *enic = pmd_priv(eth_dev);
464 ENICPMD_FUNC_TRACE();
465 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
466 device_info->max_rx_queues = enic->conf_rq_count / 2;
467 device_info->max_tx_queues = enic->conf_wq_count;
468 device_info->min_rx_bufsize = ENIC_MIN_MTU;
469 device_info->max_rx_pktlen = enic->rte_dev->data->mtu
471 device_info->max_mac_addrs = 1;
472 device_info->rx_offload_capa =
473 DEV_RX_OFFLOAD_VLAN_STRIP |
474 DEV_RX_OFFLOAD_IPV4_CKSUM |
475 DEV_RX_OFFLOAD_UDP_CKSUM |
476 DEV_RX_OFFLOAD_TCP_CKSUM;
477 device_info->tx_offload_capa =
478 DEV_TX_OFFLOAD_VLAN_INSERT |
479 DEV_TX_OFFLOAD_IPV4_CKSUM |
480 DEV_TX_OFFLOAD_UDP_CKSUM |
481 DEV_TX_OFFLOAD_TCP_CKSUM;
482 device_info->default_rxconf = (struct rte_eth_rxconf) {
483 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
487 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
489 static const uint32_t ptypes[] = {
491 RTE_PTYPE_L2_ETHER_VLAN,
492 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
493 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
497 RTE_PTYPE_L4_NONFRAG,
501 if (dev->rx_pkt_burst == enic_recv_pkts)
506 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
508 struct enic *enic = pmd_priv(eth_dev);
510 ENICPMD_FUNC_TRACE();
512 enic_add_packet_filter(enic);
515 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
517 struct enic *enic = pmd_priv(eth_dev);
519 ENICPMD_FUNC_TRACE();
521 enic_add_packet_filter(enic);
524 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
526 struct enic *enic = pmd_priv(eth_dev);
528 ENICPMD_FUNC_TRACE();
530 enic_add_packet_filter(enic);
533 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
535 struct enic *enic = pmd_priv(eth_dev);
537 ENICPMD_FUNC_TRACE();
539 enic_add_packet_filter(enic);
542 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
543 struct ether_addr *mac_addr,
544 __rte_unused uint32_t index, __rte_unused uint32_t pool)
546 struct enic *enic = pmd_priv(eth_dev);
548 ENICPMD_FUNC_TRACE();
549 enic_set_mac_address(enic, mac_addr->addr_bytes);
552 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused uint32_t index)
554 struct enic *enic = pmd_priv(eth_dev);
556 ENICPMD_FUNC_TRACE();
557 enic_del_mac_address(enic);
560 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
562 struct enic *enic = pmd_priv(eth_dev);
564 ENICPMD_FUNC_TRACE();
565 return enic_set_mtu(enic, mtu);
568 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
569 .dev_configure = enicpmd_dev_configure,
570 .dev_start = enicpmd_dev_start,
571 .dev_stop = enicpmd_dev_stop,
572 .dev_set_link_up = NULL,
573 .dev_set_link_down = NULL,
574 .dev_close = enicpmd_dev_close,
575 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
576 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
577 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
578 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
579 .link_update = enicpmd_dev_link_update,
580 .stats_get = enicpmd_dev_stats_get,
581 .stats_reset = enicpmd_dev_stats_reset,
582 .queue_stats_mapping_set = NULL,
583 .dev_infos_get = enicpmd_dev_info_get,
584 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
585 .mtu_set = enicpmd_mtu_set,
586 .vlan_filter_set = enicpmd_vlan_filter_set,
587 .vlan_tpid_set = NULL,
588 .vlan_offload_set = enicpmd_vlan_offload_set,
589 .vlan_strip_queue_set = NULL,
590 .rx_queue_start = enicpmd_dev_rx_queue_start,
591 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
592 .tx_queue_start = enicpmd_dev_tx_queue_start,
593 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
594 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
595 .rx_queue_release = enicpmd_dev_rx_queue_release,
596 .rx_queue_count = enicpmd_dev_rx_queue_count,
597 .rx_descriptor_done = NULL,
598 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
599 .tx_queue_release = enicpmd_dev_tx_queue_release,
602 .flow_ctrl_get = NULL,
603 .flow_ctrl_set = NULL,
604 .priority_flow_ctrl_set = NULL,
605 .mac_addr_add = enicpmd_add_mac_addr,
606 .mac_addr_remove = enicpmd_remove_mac_addr,
607 .filter_ctrl = enicpmd_dev_filter_ctrl,
610 struct enic *enicpmd_list_head = NULL;
611 /* Initialize the driver
612 * It returns 0 on success.
614 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
616 struct rte_pci_device *pdev;
617 struct rte_pci_addr *addr;
618 struct enic *enic = pmd_priv(eth_dev);
620 ENICPMD_FUNC_TRACE();
622 enic->port_id = eth_dev->data->port_id;
623 enic->rte_dev = eth_dev;
624 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
625 eth_dev->rx_pkt_burst = &enic_recv_pkts;
626 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
628 pdev = eth_dev->pci_dev;
629 rte_eth_copy_pci_info(eth_dev, pdev);
633 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
634 addr->domain, addr->bus, addr->devid, addr->function);
636 return enic_probe(enic);
639 static struct eth_driver rte_enic_pmd = {
641 .id_table = pci_id_enic_map,
642 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
643 .probe = rte_eth_dev_pci_probe,
644 .remove = rte_eth_dev_pci_remove,
646 .eth_dev_init = eth_enicpmd_dev_init,
647 .dev_private_size = sizeof(struct enic),
650 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd.pci_drv);
651 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);