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_bus_pci.h>
41 #include <rte_ethdev.h>
42 #include <rte_ethdev_pci.h>
43 #include <rte_string_fns.h>
45 #include "vnic_intr.h"
49 #include "vnic_enet.h"
52 #ifdef RTE_LIBRTE_ENIC_DEBUG
53 #define ENICPMD_FUNC_TRACE() \
54 RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__)
56 #define ENICPMD_FUNC_TRACE() (void)0
60 * The set of PCI devices this driver supports
62 #define CISCO_PCI_VENDOR_ID 0x1137
63 static const struct rte_pci_id pci_id_enic_map[] = {
64 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
65 { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
66 {.vendor_id = 0, /* sentinel */},
70 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
71 enum rte_filter_op filter_op, void *arg)
73 struct enic *enic = pmd_priv(eth_dev);
77 if (filter_op == RTE_ETH_FILTER_NOP)
80 if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
84 case RTE_ETH_FILTER_ADD:
85 case RTE_ETH_FILTER_UPDATE:
86 ret = enic_fdir_add_fltr(enic,
87 (struct rte_eth_fdir_filter *)arg);
90 case RTE_ETH_FILTER_DELETE:
91 ret = enic_fdir_del_fltr(enic,
92 (struct rte_eth_fdir_filter *)arg);
95 case RTE_ETH_FILTER_STATS:
96 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
99 case RTE_ETH_FILTER_FLUSH:
100 dev_warning(enic, "unsupported operation %u", filter_op);
103 case RTE_ETH_FILTER_INFO:
104 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
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 ENICPMD_FUNC_TRACE();
124 switch (filter_type) {
125 case RTE_ETH_FILTER_GENERIC:
126 if (filter_op != RTE_ETH_FILTER_GET)
128 *(const void **)arg = &enic_flow_ops;
130 case RTE_ETH_FILTER_FDIR:
131 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
134 dev_warning(enic, "Filter type (%d) not supported",
143 static void enicpmd_dev_tx_queue_release(void *txq)
145 ENICPMD_FUNC_TRACE();
147 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
153 static int enicpmd_dev_setup_intr(struct enic *enic)
158 ENICPMD_FUNC_TRACE();
160 /* Are we done with the init of all the queues? */
161 for (index = 0; index < enic->cq_count; index++) {
162 if (!enic->cq[index].ctrl)
165 if (enic->cq_count != index)
167 for (index = 0; index < enic->wq_count; index++) {
168 if (!enic->wq[index].ctrl)
171 if (enic->wq_count != index)
173 /* check start of packet (SOP) RQs only in case scatter is disabled. */
174 for (index = 0; index < enic->rq_count; index++) {
175 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
178 if (enic->rq_count != index)
181 ret = enic_alloc_intr_resources(enic);
183 dev_err(enic, "alloc intr failed\n");
186 enic_init_vnic_resources(enic);
188 ret = enic_setup_finish(enic);
190 dev_err(enic, "setup could not be finished\n");
195 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
198 unsigned int socket_id,
199 __rte_unused const struct rte_eth_txconf *tx_conf)
202 struct enic *enic = pmd_priv(eth_dev);
204 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
205 return -E_RTE_SECONDARY;
207 ENICPMD_FUNC_TRACE();
208 RTE_ASSERT(queue_idx < enic->conf_wq_count);
209 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
211 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
213 dev_err(enic, "error in allocating wq\n");
217 return enicpmd_dev_setup_intr(enic);
220 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
223 struct enic *enic = pmd_priv(eth_dev);
225 ENICPMD_FUNC_TRACE();
227 enic_start_wq(enic, queue_idx);
232 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
236 struct enic *enic = pmd_priv(eth_dev);
238 ENICPMD_FUNC_TRACE();
240 ret = enic_stop_wq(enic, queue_idx);
242 dev_err(enic, "error in stopping wq %d\n", queue_idx);
247 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
250 struct enic *enic = pmd_priv(eth_dev);
252 ENICPMD_FUNC_TRACE();
254 enic_start_rq(enic, queue_idx);
259 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
263 struct enic *enic = pmd_priv(eth_dev);
265 ENICPMD_FUNC_TRACE();
267 ret = enic_stop_rq(enic, queue_idx);
269 dev_err(enic, "error in stopping rq %d\n", queue_idx);
274 static void enicpmd_dev_rx_queue_release(void *rxq)
276 ENICPMD_FUNC_TRACE();
278 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
284 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
285 uint16_t rx_queue_id)
287 struct enic *enic = pmd_priv(dev);
288 uint32_t queue_count = 0;
294 rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
295 cq = &enic->cq[enic_cq_rq(enic, rq_num)];
296 cq_idx = cq->to_clean;
298 cq_tail = ioread32(&cq->ctrl->cq_tail);
300 if (cq_tail < cq_idx)
301 cq_tail += cq->ring.desc_count;
303 queue_count = cq_tail - cq_idx;
308 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
311 unsigned int socket_id,
312 const struct rte_eth_rxconf *rx_conf,
313 struct rte_mempool *mp)
316 struct enic *enic = pmd_priv(eth_dev);
318 ENICPMD_FUNC_TRACE();
320 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
321 return -E_RTE_SECONDARY;
322 RTE_ASSERT(enic_rte_rq_idx_to_sop_idx(queue_idx) < enic->conf_rq_count);
323 eth_dev->data->rx_queues[queue_idx] =
324 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
326 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
327 rx_conf->rx_free_thresh);
329 dev_err(enic, "error in allocating rq\n");
333 return enicpmd_dev_setup_intr(enic);
336 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
337 uint16_t vlan_id, int on)
339 struct enic *enic = pmd_priv(eth_dev);
342 ENICPMD_FUNC_TRACE();
344 err = enic_add_vlan(enic, vlan_id);
346 err = enic_del_vlan(enic, vlan_id);
350 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
352 struct enic *enic = pmd_priv(eth_dev);
354 ENICPMD_FUNC_TRACE();
356 if (mask & ETH_VLAN_STRIP_MASK) {
357 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
358 enic->ig_vlan_strip_en = 1;
360 enic->ig_vlan_strip_en = 0;
362 enic_set_rss_nic_cfg(enic);
365 if (mask & ETH_VLAN_FILTER_MASK) {
367 "Configuration of VLAN filter is not supported\n");
370 if (mask & ETH_VLAN_EXTEND_MASK) {
372 "Configuration of extended VLAN is not supported\n");
378 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
381 struct enic *enic = pmd_priv(eth_dev);
383 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
384 return -E_RTE_SECONDARY;
386 ENICPMD_FUNC_TRACE();
387 ret = enic_set_vnic_res(enic);
389 dev_err(enic, "Set vNIC resource num failed, aborting\n");
393 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
394 eth_dev->data->dev_conf.rxmode.header_split) {
395 /* Enable header-data-split */
396 enic_set_hdr_split_size(enic,
397 eth_dev->data->dev_conf.rxmode.split_hdr_size);
400 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
401 ret = enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
407 * It returns 0 on success.
409 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
411 struct enic *enic = pmd_priv(eth_dev);
413 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
414 return -E_RTE_SECONDARY;
416 ENICPMD_FUNC_TRACE();
417 return enic_enable(enic);
421 * Stop device: disable rx and tx functions to allow for reconfiguring.
423 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
425 struct rte_eth_link link;
426 struct enic *enic = pmd_priv(eth_dev);
428 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
431 ENICPMD_FUNC_TRACE();
433 memset(&link, 0, sizeof(link));
434 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
435 *(uint64_t *)ð_dev->data->dev_link,
442 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
444 struct enic *enic = pmd_priv(eth_dev);
446 ENICPMD_FUNC_TRACE();
450 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
451 __rte_unused int wait_to_complete)
453 struct enic *enic = pmd_priv(eth_dev);
455 ENICPMD_FUNC_TRACE();
456 return enic_link_update(enic);
459 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
460 struct rte_eth_stats *stats)
462 struct enic *enic = pmd_priv(eth_dev);
464 ENICPMD_FUNC_TRACE();
465 return enic_dev_stats_get(enic, stats);
468 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
470 struct enic *enic = pmd_priv(eth_dev);
472 ENICPMD_FUNC_TRACE();
473 enic_dev_stats_clear(enic);
476 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
477 struct rte_eth_dev_info *device_info)
479 struct enic *enic = pmd_priv(eth_dev);
481 ENICPMD_FUNC_TRACE();
482 device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
483 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
484 device_info->max_rx_queues = enic->conf_rq_count / 2;
485 device_info->max_tx_queues = enic->conf_wq_count;
486 device_info->min_rx_bufsize = ENIC_MIN_MTU;
487 device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4;
488 device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
489 device_info->rx_offload_capa =
490 DEV_RX_OFFLOAD_VLAN_STRIP |
491 DEV_RX_OFFLOAD_IPV4_CKSUM |
492 DEV_RX_OFFLOAD_UDP_CKSUM |
493 DEV_RX_OFFLOAD_TCP_CKSUM;
494 device_info->tx_offload_capa =
495 DEV_TX_OFFLOAD_VLAN_INSERT |
496 DEV_TX_OFFLOAD_IPV4_CKSUM |
497 DEV_TX_OFFLOAD_UDP_CKSUM |
498 DEV_TX_OFFLOAD_TCP_CKSUM |
499 DEV_TX_OFFLOAD_TCP_TSO;
500 device_info->default_rxconf = (struct rte_eth_rxconf) {
501 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
505 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
507 static const uint32_t ptypes[] = {
509 RTE_PTYPE_L2_ETHER_VLAN,
510 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
511 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
515 RTE_PTYPE_L4_NONFRAG,
519 if (dev->rx_pkt_burst == enic_recv_pkts)
524 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
526 struct enic *enic = pmd_priv(eth_dev);
528 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
531 ENICPMD_FUNC_TRACE();
534 enic_add_packet_filter(enic);
537 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
539 struct enic *enic = pmd_priv(eth_dev);
541 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
544 ENICPMD_FUNC_TRACE();
546 enic_add_packet_filter(enic);
549 static void enicpmd_dev_allmulticast_enable(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_disable(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 int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
574 struct ether_addr *mac_addr,
575 __rte_unused uint32_t index, __rte_unused uint32_t pool)
577 struct enic *enic = pmd_priv(eth_dev);
579 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
580 return -E_RTE_SECONDARY;
582 ENICPMD_FUNC_TRACE();
583 return enic_set_mac_address(enic, mac_addr->addr_bytes);
586 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
588 struct enic *enic = pmd_priv(eth_dev);
590 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
593 ENICPMD_FUNC_TRACE();
594 enic_del_mac_address(enic, index);
597 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
599 struct enic *enic = pmd_priv(eth_dev);
601 ENICPMD_FUNC_TRACE();
602 return enic_set_mtu(enic, mtu);
605 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
606 .dev_configure = enicpmd_dev_configure,
607 .dev_start = enicpmd_dev_start,
608 .dev_stop = enicpmd_dev_stop,
609 .dev_set_link_up = NULL,
610 .dev_set_link_down = NULL,
611 .dev_close = enicpmd_dev_close,
612 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
613 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
614 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
615 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
616 .link_update = enicpmd_dev_link_update,
617 .stats_get = enicpmd_dev_stats_get,
618 .stats_reset = enicpmd_dev_stats_reset,
619 .queue_stats_mapping_set = NULL,
620 .dev_infos_get = enicpmd_dev_info_get,
621 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
622 .mtu_set = enicpmd_mtu_set,
623 .vlan_filter_set = enicpmd_vlan_filter_set,
624 .vlan_tpid_set = NULL,
625 .vlan_offload_set = enicpmd_vlan_offload_set,
626 .vlan_strip_queue_set = NULL,
627 .rx_queue_start = enicpmd_dev_rx_queue_start,
628 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
629 .tx_queue_start = enicpmd_dev_tx_queue_start,
630 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
631 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
632 .rx_queue_release = enicpmd_dev_rx_queue_release,
633 .rx_queue_count = enicpmd_dev_rx_queue_count,
634 .rx_descriptor_done = NULL,
635 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
636 .tx_queue_release = enicpmd_dev_tx_queue_release,
639 .flow_ctrl_get = NULL,
640 .flow_ctrl_set = NULL,
641 .priority_flow_ctrl_set = NULL,
642 .mac_addr_add = enicpmd_add_mac_addr,
643 .mac_addr_remove = enicpmd_remove_mac_addr,
644 .filter_ctrl = enicpmd_dev_filter_ctrl,
647 struct enic *enicpmd_list_head = NULL;
648 /* Initialize the driver
649 * It returns 0 on success.
651 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
653 struct rte_pci_device *pdev;
654 struct rte_pci_addr *addr;
655 struct enic *enic = pmd_priv(eth_dev);
657 ENICPMD_FUNC_TRACE();
659 enic->port_id = eth_dev->data->port_id;
660 enic->rte_dev = eth_dev;
661 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
662 eth_dev->rx_pkt_burst = &enic_recv_pkts;
663 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
665 pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
666 rte_eth_copy_pci_info(eth_dev, pdev);
670 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
671 addr->domain, addr->bus, addr->devid, addr->function);
673 return enic_probe(enic);
676 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
677 struct rte_pci_device *pci_dev)
679 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
680 eth_enicpmd_dev_init);
683 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
685 return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
688 static struct rte_pci_driver rte_enic_pmd = {
689 .id_table = pci_id_enic_map,
690 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
691 .probe = eth_enic_pci_probe,
692 .remove = eth_enic_pci_remove,
695 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
696 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
697 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");