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 static const struct rte_pci_id pci_id_enic_map[] = {
61 #define RTE_PCI_DEV_ID_DECL_ENIC(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
62 #ifndef PCI_VENDOR_ID_CISCO
63 #define PCI_VENDOR_ID_CISCO 0x1137
65 #include "rte_pci_dev_ids.h"
66 RTE_PCI_DEV_ID_DECL_ENIC(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_VIC_ENET)
67 RTE_PCI_DEV_ID_DECL_ENIC(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_VIC_ENET_VF)
68 {.vendor_id = 0, /* Sentinal */},
72 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
73 enum rte_filter_op filter_op, void *arg)
75 struct enic *enic = pmd_priv(eth_dev);
79 if (filter_op == RTE_ETH_FILTER_NOP)
82 if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
86 case RTE_ETH_FILTER_ADD:
87 case RTE_ETH_FILTER_UPDATE:
88 ret = enic_fdir_add_fltr(enic,
89 (struct rte_eth_fdir_filter *)arg);
92 case RTE_ETH_FILTER_DELETE:
93 ret = enic_fdir_del_fltr(enic,
94 (struct rte_eth_fdir_filter *)arg);
97 case RTE_ETH_FILTER_STATS:
98 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
101 case RTE_ETH_FILTER_FLUSH:
102 case RTE_ETH_FILTER_INFO:
103 dev_warning(enic, "unsupported operation %u", filter_op);
107 dev_err(enic, "unknown operation %u", filter_op);
115 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
116 enum rte_filter_type filter_type,
117 enum rte_filter_op filter_op,
122 if (RTE_ETH_FILTER_FDIR == filter_type)
123 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
125 dev_warning(enic, "Filter type (%d) not supported",
131 static void enicpmd_dev_tx_queue_release(void *txq)
133 ENICPMD_FUNC_TRACE();
137 static int enicpmd_dev_setup_intr(struct enic *enic)
142 ENICPMD_FUNC_TRACE();
144 /* Are we done with the init of all the queues? */
145 for (index = 0; index < enic->cq_count; index++) {
146 if (!enic->cq[index].ctrl)
150 if (enic->cq_count != index)
153 ret = enic_alloc_intr_resources(enic);
155 dev_err(enic, "alloc intr failed\n");
158 enic_init_vnic_resources(enic);
160 ret = enic_setup_finish(enic);
162 dev_err(enic, "setup could not be finished\n");
167 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
170 unsigned int socket_id,
171 __rte_unused const struct rte_eth_txconf *tx_conf)
174 struct enic *enic = pmd_priv(eth_dev);
176 ENICPMD_FUNC_TRACE();
177 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
179 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
181 dev_err(enic, "error in allocating wq\n");
185 return enicpmd_dev_setup_intr(enic);
188 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
191 struct enic *enic = pmd_priv(eth_dev);
193 ENICPMD_FUNC_TRACE();
195 enic_start_wq(enic, queue_idx);
196 eth_dev->data->tx_queue_state[queue_idx] = RTE_ETH_QUEUE_STATE_STARTED;
201 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
205 struct enic *enic = pmd_priv(eth_dev);
207 ENICPMD_FUNC_TRACE();
209 ret = enic_stop_wq(enic, queue_idx);
211 dev_err(enic, "error in stopping wq %d\n", queue_idx);
213 eth_dev->data->tx_queue_state[queue_idx] = RTE_ETH_QUEUE_STATE_STOPPED;
218 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
221 struct enic *enic = pmd_priv(eth_dev);
223 ENICPMD_FUNC_TRACE();
225 enic_start_rq(enic, queue_idx);
226 eth_dev->data->rx_queue_state[queue_idx] = RTE_ETH_QUEUE_STATE_STARTED;
231 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
235 struct enic *enic = pmd_priv(eth_dev);
237 ENICPMD_FUNC_TRACE();
239 ret = enic_stop_rq(enic, queue_idx);
241 dev_err(enic, "error in stopping rq %d\n", queue_idx);
243 eth_dev->data->rx_queue_state[queue_idx] = RTE_ETH_QUEUE_STATE_STOPPED;
248 static void enicpmd_dev_rx_queue_release(void *rxq)
250 ENICPMD_FUNC_TRACE();
254 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
257 unsigned int socket_id,
258 __rte_unused const struct rte_eth_rxconf *rx_conf,
259 struct rte_mempool *mp)
262 struct enic *enic = pmd_priv(eth_dev);
264 ENICPMD_FUNC_TRACE();
265 eth_dev->data->rx_queues[queue_idx] = (void *)&enic->rq[queue_idx];
267 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc);
269 dev_err(enic, "error in allocating rq\n");
273 return enicpmd_dev_setup_intr(enic);
276 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
277 uint16_t vlan_id, int on)
279 struct enic *enic = pmd_priv(eth_dev);
281 ENICPMD_FUNC_TRACE();
283 enic_add_vlan(enic, vlan_id);
285 enic_del_vlan(enic, vlan_id);
289 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
291 struct enic *enic = pmd_priv(eth_dev);
293 ENICPMD_FUNC_TRACE();
295 if (mask & ETH_VLAN_STRIP_MASK) {
296 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
297 enic->ig_vlan_strip_en = 1;
299 enic->ig_vlan_strip_en = 0;
301 enic_set_rss_nic_cfg(enic);
304 if (mask & ETH_VLAN_FILTER_MASK) {
306 "Configuration of VLAN filter is not supported\n");
309 if (mask & ETH_VLAN_EXTEND_MASK) {
311 "Configuration of extended VLAN is not supported\n");
315 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
318 struct enic *enic = pmd_priv(eth_dev);
320 ENICPMD_FUNC_TRACE();
321 ret = enic_set_vnic_res(enic);
323 dev_err(enic, "Set vNIC resource num failed, aborting\n");
327 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
328 eth_dev->data->dev_conf.rxmode.header_split) {
329 /* Enable header-data-split */
330 enic_set_hdr_split_size(enic,
331 eth_dev->data->dev_conf.rxmode.split_hdr_size);
334 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
339 * It returns 0 on success.
341 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
343 struct enic *enic = pmd_priv(eth_dev);
345 ENICPMD_FUNC_TRACE();
346 return enic_enable(enic);
350 * Stop device: disable rx and tx functions to allow for reconfiguring.
352 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
354 struct rte_eth_link link;
355 struct enic *enic = pmd_priv(eth_dev);
357 ENICPMD_FUNC_TRACE();
359 memset(&link, 0, sizeof(link));
360 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
361 *(uint64_t *)ð_dev->data->dev_link,
368 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
370 struct enic *enic = pmd_priv(eth_dev);
372 ENICPMD_FUNC_TRACE();
376 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
377 __rte_unused int wait_to_complete)
379 struct enic *enic = pmd_priv(eth_dev);
383 ENICPMD_FUNC_TRACE();
384 link_status = enic_get_link_status(enic);
385 ret = (link_status == enic->link_status);
386 enic->link_status = link_status;
387 eth_dev->data->dev_link.link_status = link_status;
388 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
389 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
393 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
394 struct rte_eth_stats *stats)
396 struct enic *enic = pmd_priv(eth_dev);
398 ENICPMD_FUNC_TRACE();
399 enic_dev_stats_get(enic, stats);
402 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
404 struct enic *enic = pmd_priv(eth_dev);
406 ENICPMD_FUNC_TRACE();
407 enic_dev_stats_clear(enic);
410 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
411 struct rte_eth_dev_info *device_info)
413 struct enic *enic = pmd_priv(eth_dev);
415 ENICPMD_FUNC_TRACE();
416 device_info->max_rx_queues = enic->rq_count;
417 device_info->max_tx_queues = enic->wq_count;
418 device_info->min_rx_bufsize = ENIC_MIN_MTU;
419 device_info->max_rx_pktlen = enic->config.mtu;
420 device_info->max_mac_addrs = 1;
421 device_info->rx_offload_capa =
422 DEV_RX_OFFLOAD_VLAN_STRIP |
423 DEV_RX_OFFLOAD_IPV4_CKSUM |
424 DEV_RX_OFFLOAD_UDP_CKSUM |
425 DEV_RX_OFFLOAD_TCP_CKSUM;
426 device_info->tx_offload_capa =
427 DEV_TX_OFFLOAD_VLAN_INSERT |
428 DEV_TX_OFFLOAD_IPV4_CKSUM |
429 DEV_TX_OFFLOAD_UDP_CKSUM |
430 DEV_TX_OFFLOAD_TCP_CKSUM;
433 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
435 struct enic *enic = pmd_priv(eth_dev);
437 ENICPMD_FUNC_TRACE();
439 enic_add_packet_filter(enic);
442 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
444 struct enic *enic = pmd_priv(eth_dev);
446 ENICPMD_FUNC_TRACE();
448 enic_add_packet_filter(enic);
451 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
453 struct enic *enic = pmd_priv(eth_dev);
455 ENICPMD_FUNC_TRACE();
457 enic_add_packet_filter(enic);
460 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
462 struct enic *enic = pmd_priv(eth_dev);
464 ENICPMD_FUNC_TRACE();
466 enic_add_packet_filter(enic);
469 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
470 struct ether_addr *mac_addr,
471 __rte_unused uint32_t index, __rte_unused uint32_t pool)
473 struct enic *enic = pmd_priv(eth_dev);
475 ENICPMD_FUNC_TRACE();
476 enic_set_mac_address(enic, mac_addr->addr_bytes);
479 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused uint32_t index)
481 struct enic *enic = pmd_priv(eth_dev);
483 ENICPMD_FUNC_TRACE();
484 enic_del_mac_address(enic);
488 static uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
493 unsigned int pkt_len;
494 unsigned int seg_len;
495 unsigned int inc_len;
496 unsigned int nb_segs;
497 struct rte_mbuf *tx_pkt, *next_tx_pkt;
498 struct vnic_wq *wq = (struct vnic_wq *)tx_queue;
499 struct enic *enic = vnic_dev_priv(wq->vdev);
500 unsigned short vlan_id;
501 unsigned short ol_flags;
502 uint8_t last_seg, eop;
504 for (index = 0; index < nb_pkts; index++) {
507 nb_segs = tx_pkt->nb_segs;
508 if (nb_segs > vnic_wq_desc_avail(wq)) {
510 enic_post_wq_index(wq);
512 /* wq cleanup and try again */
513 if (!enic_cleanup_wq(enic, wq) ||
514 (nb_segs > vnic_wq_desc_avail(wq))) {
518 pkt_len = tx_pkt->pkt_len;
519 vlan_id = tx_pkt->vlan_tci;
520 ol_flags = tx_pkt->ol_flags;
521 for (frags = 0; inc_len < pkt_len; frags++) {
524 next_tx_pkt = tx_pkt->next;
525 seg_len = tx_pkt->data_len;
527 eop = (pkt_len == inc_len) || (!next_tx_pkt);
529 (index == ((unsigned int)nb_pkts - 1));
530 enic_send_pkt(enic, wq, tx_pkt, (unsigned short)seg_len,
531 !frags, eop, last_seg, ol_flags, vlan_id);
532 tx_pkt = next_tx_pkt;
536 enic_cleanup_wq(enic, wq);
540 static uint16_t enicpmd_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
543 struct vnic_rq *rq = (struct vnic_rq *)rx_queue;
544 unsigned int work_done;
546 if (enic_poll(rq, rx_pkts, (unsigned int)nb_pkts, &work_done))
547 dev_err(enic, "error in enicpmd poll\n");
552 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
553 .dev_configure = enicpmd_dev_configure,
554 .dev_start = enicpmd_dev_start,
555 .dev_stop = enicpmd_dev_stop,
556 .dev_set_link_up = NULL,
557 .dev_set_link_down = NULL,
558 .dev_close = enicpmd_dev_close,
559 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
560 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
561 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
562 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
563 .link_update = enicpmd_dev_link_update,
564 .stats_get = enicpmd_dev_stats_get,
565 .stats_reset = enicpmd_dev_stats_reset,
566 .queue_stats_mapping_set = NULL,
567 .dev_infos_get = enicpmd_dev_info_get,
569 .vlan_filter_set = enicpmd_vlan_filter_set,
570 .vlan_tpid_set = NULL,
571 .vlan_offload_set = enicpmd_vlan_offload_set,
572 .vlan_strip_queue_set = NULL,
573 .rx_queue_start = enicpmd_dev_rx_queue_start,
574 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
575 .tx_queue_start = enicpmd_dev_tx_queue_start,
576 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
577 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
578 .rx_queue_release = enicpmd_dev_rx_queue_release,
579 .rx_queue_count = NULL,
580 .rx_descriptor_done = NULL,
581 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
582 .tx_queue_release = enicpmd_dev_tx_queue_release,
585 .flow_ctrl_get = NULL,
586 .flow_ctrl_set = NULL,
587 .priority_flow_ctrl_set = NULL,
588 .mac_addr_add = enicpmd_add_mac_addr,
589 .mac_addr_remove = enicpmd_remove_mac_addr,
590 .filter_ctrl = enicpmd_dev_filter_ctrl,
593 struct enic *enicpmd_list_head = NULL;
594 /* Initialize the driver
595 * It returns 0 on success.
597 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
599 struct rte_pci_device *pdev;
600 struct rte_pci_addr *addr;
601 struct enic *enic = pmd_priv(eth_dev);
603 ENICPMD_FUNC_TRACE();
605 enic->port_id = eth_dev->data->port_id;
606 enic->rte_dev = eth_dev;
607 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
608 eth_dev->rx_pkt_burst = &enicpmd_recv_pkts;
609 eth_dev->tx_pkt_burst = &enicpmd_xmit_pkts;
611 pdev = eth_dev->pci_dev;
612 rte_eth_copy_pci_info(eth_dev, pdev);
616 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
617 addr->domain, addr->bus, addr->devid, addr->function);
619 return enic_probe(enic);
622 static struct eth_driver rte_enic_pmd = {
624 .name = "rte_enic_pmd",
625 .id_table = pci_id_enic_map,
626 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
628 .eth_dev_init = eth_enicpmd_dev_init,
629 .dev_private_size = sizeof(struct enic),
632 /* Driver initialization routine.
633 * Invoked once at EAL init time.
634 * Register as the [Poll Mode] Driver of Cisco ENIC device.
637 rte_enic_pmd_init(const char *name __rte_unused,
638 const char *params __rte_unused)
640 ENICPMD_FUNC_TRACE();
642 rte_eth_driver_register(&rte_enic_pmd);
646 static struct rte_driver rte_enic_driver = {
648 .init = rte_enic_pmd_init,
651 PMD_REGISTER_DRIVER(rte_enic_driver);