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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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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40 #include <rte_ethdev.h>
41 #include <rte_ethdev_pci.h>
42 #include <rte_string_fns.h>
44 #include "vnic_intr.h"
48 #include "vnic_enet.h"
51 #ifdef RTE_LIBRTE_ENIC_DEBUG
52 #define ENICPMD_FUNC_TRACE() \
53 RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__)
55 #define ENICPMD_FUNC_TRACE() (void)0
59 * The set of PCI devices this driver supports
61 #define CISCO_PCI_VENDOR_ID 0x1137
62 static const struct rte_pci_id pci_id_enic_map[] = {
63 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
64 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
65 {.vendor_id = 0, /* sentinel */},
69 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
70 enum rte_filter_op filter_op, void *arg)
72 struct enic *enic = pmd_priv(eth_dev);
76 if (filter_op == RTE_ETH_FILTER_NOP)
79 if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
83 case RTE_ETH_FILTER_ADD:
84 case RTE_ETH_FILTER_UPDATE:
85 ret = enic_fdir_add_fltr(enic,
86 (struct rte_eth_fdir_filter *)arg);
89 case RTE_ETH_FILTER_DELETE:
90 ret = enic_fdir_del_fltr(enic,
91 (struct rte_eth_fdir_filter *)arg);
94 case RTE_ETH_FILTER_STATS:
95 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
98 case RTE_ETH_FILTER_FLUSH:
99 dev_warning(enic, "unsupported operation %u", filter_op);
102 case RTE_ETH_FILTER_INFO:
103 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
106 dev_err(enic, "unknown operation %u", filter_op);
114 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
115 enum rte_filter_type filter_type,
116 enum rte_filter_op filter_op,
121 ENICPMD_FUNC_TRACE();
123 switch (filter_type) {
124 case RTE_ETH_FILTER_GENERIC:
125 if (filter_op != RTE_ETH_FILTER_GET)
127 *(const void **)arg = &enic_flow_ops;
129 case RTE_ETH_FILTER_FDIR:
130 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
133 dev_warning(enic, "Filter type (%d) not supported",
142 static void enicpmd_dev_tx_queue_release(void *txq)
144 ENICPMD_FUNC_TRACE();
146 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
152 static int enicpmd_dev_setup_intr(struct enic *enic)
157 ENICPMD_FUNC_TRACE();
159 /* Are we done with the init of all the queues? */
160 for (index = 0; index < enic->cq_count; index++) {
161 if (!enic->cq[index].ctrl)
164 if (enic->cq_count != index)
166 for (index = 0; index < enic->wq_count; index++) {
167 if (!enic->wq[index].ctrl)
170 if (enic->wq_count != index)
172 /* check start of packet (SOP) RQs only in case scatter is disabled. */
173 for (index = 0; index < enic->rq_count; index++) {
174 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
177 if (enic->rq_count != index)
180 ret = enic_alloc_intr_resources(enic);
182 dev_err(enic, "alloc intr failed\n");
185 enic_init_vnic_resources(enic);
187 ret = enic_setup_finish(enic);
189 dev_err(enic, "setup could not be finished\n");
194 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
197 unsigned int socket_id,
198 __rte_unused const struct rte_eth_txconf *tx_conf)
201 struct enic *enic = pmd_priv(eth_dev);
203 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
204 return -E_RTE_SECONDARY;
206 ENICPMD_FUNC_TRACE();
207 if (queue_idx >= ENIC_WQ_MAX) {
209 "Max number of TX queues exceeded. Max is %d\n",
214 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
216 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
218 dev_err(enic, "error in allocating wq\n");
222 return enicpmd_dev_setup_intr(enic);
225 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
228 struct enic *enic = pmd_priv(eth_dev);
230 ENICPMD_FUNC_TRACE();
232 enic_start_wq(enic, queue_idx);
237 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
241 struct enic *enic = pmd_priv(eth_dev);
243 ENICPMD_FUNC_TRACE();
245 ret = enic_stop_wq(enic, queue_idx);
247 dev_err(enic, "error in stopping wq %d\n", queue_idx);
252 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
255 struct enic *enic = pmd_priv(eth_dev);
257 ENICPMD_FUNC_TRACE();
259 enic_start_rq(enic, queue_idx);
264 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
268 struct enic *enic = pmd_priv(eth_dev);
270 ENICPMD_FUNC_TRACE();
272 ret = enic_stop_rq(enic, queue_idx);
274 dev_err(enic, "error in stopping rq %d\n", queue_idx);
279 static void enicpmd_dev_rx_queue_release(void *rxq)
281 ENICPMD_FUNC_TRACE();
283 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
289 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
290 uint16_t rx_queue_id)
292 struct enic *enic = pmd_priv(dev);
293 uint32_t queue_count = 0;
299 rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
300 cq = &enic->cq[enic_cq_rq(enic, rq_num)];
301 cq_idx = cq->to_clean;
303 cq_tail = ioread32(&cq->ctrl->cq_tail);
305 if (cq_tail < cq_idx)
306 cq_tail += cq->ring.desc_count;
308 queue_count = cq_tail - cq_idx;
313 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
316 unsigned int socket_id,
317 const struct rte_eth_rxconf *rx_conf,
318 struct rte_mempool *mp)
321 struct enic *enic = pmd_priv(eth_dev);
323 ENICPMD_FUNC_TRACE();
325 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
326 return -E_RTE_SECONDARY;
328 /* With Rx scatter support, two RQs are now used on VIC per RQ used
329 * by the application.
331 if (queue_idx * 2 >= ENIC_RQ_MAX) {
333 "Max number of RX queues exceeded. Max is %d. This PMD uses 2 RQs on VIC per RQ used by DPDK.\n",
338 eth_dev->data->rx_queues[queue_idx] =
339 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
341 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
342 rx_conf->rx_free_thresh);
344 dev_err(enic, "error in allocating rq\n");
348 return enicpmd_dev_setup_intr(enic);
351 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
352 uint16_t vlan_id, int on)
354 struct enic *enic = pmd_priv(eth_dev);
357 ENICPMD_FUNC_TRACE();
359 err = enic_add_vlan(enic, vlan_id);
361 err = enic_del_vlan(enic, vlan_id);
365 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
367 struct enic *enic = pmd_priv(eth_dev);
369 ENICPMD_FUNC_TRACE();
371 if (mask & ETH_VLAN_STRIP_MASK) {
372 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
373 enic->ig_vlan_strip_en = 1;
375 enic->ig_vlan_strip_en = 0;
377 enic_set_rss_nic_cfg(enic);
380 if (mask & ETH_VLAN_FILTER_MASK) {
382 "Configuration of VLAN filter is not supported\n");
385 if (mask & ETH_VLAN_EXTEND_MASK) {
387 "Configuration of extended VLAN is not supported\n");
391 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
394 struct enic *enic = pmd_priv(eth_dev);
396 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
397 return -E_RTE_SECONDARY;
399 ENICPMD_FUNC_TRACE();
400 ret = enic_set_vnic_res(enic);
402 dev_err(enic, "Set vNIC resource num failed, aborting\n");
406 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
407 eth_dev->data->dev_conf.rxmode.header_split) {
408 /* Enable header-data-split */
409 enic_set_hdr_split_size(enic,
410 eth_dev->data->dev_conf.rxmode.split_hdr_size);
413 enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
414 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
419 * It returns 0 on success.
421 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
423 struct enic *enic = pmd_priv(eth_dev);
425 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
426 return -E_RTE_SECONDARY;
428 ENICPMD_FUNC_TRACE();
429 return enic_enable(enic);
433 * Stop device: disable rx and tx functions to allow for reconfiguring.
435 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
437 struct rte_eth_link link;
438 struct enic *enic = pmd_priv(eth_dev);
440 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
443 ENICPMD_FUNC_TRACE();
445 memset(&link, 0, sizeof(link));
446 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
447 *(uint64_t *)ð_dev->data->dev_link,
454 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
456 struct enic *enic = pmd_priv(eth_dev);
458 ENICPMD_FUNC_TRACE();
462 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
463 __rte_unused int wait_to_complete)
465 struct enic *enic = pmd_priv(eth_dev);
467 ENICPMD_FUNC_TRACE();
468 return enic_link_update(enic);
471 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
472 struct rte_eth_stats *stats)
474 struct enic *enic = pmd_priv(eth_dev);
476 ENICPMD_FUNC_TRACE();
477 enic_dev_stats_get(enic, stats);
480 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
482 struct enic *enic = pmd_priv(eth_dev);
484 ENICPMD_FUNC_TRACE();
485 enic_dev_stats_clear(enic);
488 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
489 struct rte_eth_dev_info *device_info)
491 struct enic *enic = pmd_priv(eth_dev);
493 ENICPMD_FUNC_TRACE();
494 device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
495 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
496 device_info->max_rx_queues = enic->conf_rq_count / 2;
497 device_info->max_tx_queues = enic->conf_wq_count;
498 device_info->min_rx_bufsize = ENIC_MIN_MTU;
499 device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4;
500 device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
501 device_info->rx_offload_capa =
502 DEV_RX_OFFLOAD_VLAN_STRIP |
503 DEV_RX_OFFLOAD_IPV4_CKSUM |
504 DEV_RX_OFFLOAD_UDP_CKSUM |
505 DEV_RX_OFFLOAD_TCP_CKSUM;
506 device_info->tx_offload_capa =
507 DEV_TX_OFFLOAD_VLAN_INSERT |
508 DEV_TX_OFFLOAD_IPV4_CKSUM |
509 DEV_TX_OFFLOAD_UDP_CKSUM |
510 DEV_TX_OFFLOAD_TCP_CKSUM |
511 DEV_TX_OFFLOAD_TCP_TSO;
512 device_info->default_rxconf = (struct rte_eth_rxconf) {
513 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
517 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
519 static const uint32_t ptypes[] = {
521 RTE_PTYPE_L2_ETHER_VLAN,
522 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
523 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
527 RTE_PTYPE_L4_NONFRAG,
531 if (dev->rx_pkt_burst == enic_recv_pkts)
536 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
538 struct enic *enic = pmd_priv(eth_dev);
540 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
543 ENICPMD_FUNC_TRACE();
546 enic_add_packet_filter(enic);
549 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
551 struct enic *enic = pmd_priv(eth_dev);
553 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
556 ENICPMD_FUNC_TRACE();
558 enic_add_packet_filter(enic);
561 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
563 struct enic *enic = pmd_priv(eth_dev);
565 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
568 ENICPMD_FUNC_TRACE();
570 enic_add_packet_filter(enic);
573 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
575 struct enic *enic = pmd_priv(eth_dev);
577 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
580 ENICPMD_FUNC_TRACE();
582 enic_add_packet_filter(enic);
585 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
586 struct ether_addr *mac_addr,
587 __rte_unused uint32_t index, __rte_unused uint32_t pool)
589 struct enic *enic = pmd_priv(eth_dev);
591 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
592 return -E_RTE_SECONDARY;
594 ENICPMD_FUNC_TRACE();
595 return enic_set_mac_address(enic, mac_addr->addr_bytes);
598 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
600 struct enic *enic = pmd_priv(eth_dev);
602 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
605 ENICPMD_FUNC_TRACE();
606 enic_del_mac_address(enic, index);
609 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
611 struct enic *enic = pmd_priv(eth_dev);
613 ENICPMD_FUNC_TRACE();
614 return enic_set_mtu(enic, mtu);
617 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
618 .dev_configure = enicpmd_dev_configure,
619 .dev_start = enicpmd_dev_start,
620 .dev_stop = enicpmd_dev_stop,
621 .dev_set_link_up = NULL,
622 .dev_set_link_down = NULL,
623 .dev_close = enicpmd_dev_close,
624 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
625 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
626 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
627 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
628 .link_update = enicpmd_dev_link_update,
629 .stats_get = enicpmd_dev_stats_get,
630 .stats_reset = enicpmd_dev_stats_reset,
631 .queue_stats_mapping_set = NULL,
632 .dev_infos_get = enicpmd_dev_info_get,
633 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
634 .mtu_set = enicpmd_mtu_set,
635 .vlan_filter_set = enicpmd_vlan_filter_set,
636 .vlan_tpid_set = NULL,
637 .vlan_offload_set = enicpmd_vlan_offload_set,
638 .vlan_strip_queue_set = NULL,
639 .rx_queue_start = enicpmd_dev_rx_queue_start,
640 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
641 .tx_queue_start = enicpmd_dev_tx_queue_start,
642 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
643 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
644 .rx_queue_release = enicpmd_dev_rx_queue_release,
645 .rx_queue_count = enicpmd_dev_rx_queue_count,
646 .rx_descriptor_done = NULL,
647 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
648 .tx_queue_release = enicpmd_dev_tx_queue_release,
651 .flow_ctrl_get = NULL,
652 .flow_ctrl_set = NULL,
653 .priority_flow_ctrl_set = NULL,
654 .mac_addr_add = enicpmd_add_mac_addr,
655 .mac_addr_remove = enicpmd_remove_mac_addr,
656 .filter_ctrl = enicpmd_dev_filter_ctrl,
659 struct enic *enicpmd_list_head = NULL;
660 /* Initialize the driver
661 * It returns 0 on success.
663 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
665 struct rte_pci_device *pdev;
666 struct rte_pci_addr *addr;
667 struct enic *enic = pmd_priv(eth_dev);
669 ENICPMD_FUNC_TRACE();
671 enic->port_id = eth_dev->data->port_id;
672 enic->rte_dev = eth_dev;
673 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
674 eth_dev->rx_pkt_burst = &enic_recv_pkts;
675 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
677 pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
678 rte_eth_copy_pci_info(eth_dev, pdev);
682 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
683 addr->domain, addr->bus, addr->devid, addr->function);
685 return enic_probe(enic);
688 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
689 struct rte_pci_device *pci_dev)
691 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
692 eth_enicpmd_dev_init);
695 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
697 return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
700 static struct rte_pci_driver rte_enic_pmd = {
701 .id_table = pci_id_enic_map,
702 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
703 .probe = eth_enic_pci_probe,
704 .remove = eth_enic_pci_remove,
707 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
708 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
709 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");