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.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
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 int 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");
393 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
396 struct enic *enic = pmd_priv(eth_dev);
398 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
399 return -E_RTE_SECONDARY;
401 ENICPMD_FUNC_TRACE();
402 ret = enic_set_vnic_res(enic);
404 dev_err(enic, "Set vNIC resource num failed, aborting\n");
408 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
409 eth_dev->data->dev_conf.rxmode.header_split) {
410 /* Enable header-data-split */
411 enic_set_hdr_split_size(enic,
412 eth_dev->data->dev_conf.rxmode.split_hdr_size);
415 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
416 ret = enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
422 * It returns 0 on success.
424 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
426 struct enic *enic = pmd_priv(eth_dev);
428 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
429 return -E_RTE_SECONDARY;
431 ENICPMD_FUNC_TRACE();
432 return enic_enable(enic);
436 * Stop device: disable rx and tx functions to allow for reconfiguring.
438 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
440 struct rte_eth_link link;
441 struct enic *enic = pmd_priv(eth_dev);
443 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
446 ENICPMD_FUNC_TRACE();
448 memset(&link, 0, sizeof(link));
449 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
450 *(uint64_t *)ð_dev->data->dev_link,
457 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
459 struct enic *enic = pmd_priv(eth_dev);
461 ENICPMD_FUNC_TRACE();
465 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
466 __rte_unused int wait_to_complete)
468 struct enic *enic = pmd_priv(eth_dev);
470 ENICPMD_FUNC_TRACE();
471 return enic_link_update(enic);
474 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
475 struct rte_eth_stats *stats)
477 struct enic *enic = pmd_priv(eth_dev);
479 ENICPMD_FUNC_TRACE();
480 return enic_dev_stats_get(enic, stats);
483 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
485 struct enic *enic = pmd_priv(eth_dev);
487 ENICPMD_FUNC_TRACE();
488 enic_dev_stats_clear(enic);
491 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
492 struct rte_eth_dev_info *device_info)
494 struct enic *enic = pmd_priv(eth_dev);
496 ENICPMD_FUNC_TRACE();
497 device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
498 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
499 device_info->max_rx_queues = enic->conf_rq_count / 2;
500 device_info->max_tx_queues = enic->conf_wq_count;
501 device_info->min_rx_bufsize = ENIC_MIN_MTU;
502 device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4;
503 device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
504 device_info->rx_offload_capa =
505 DEV_RX_OFFLOAD_VLAN_STRIP |
506 DEV_RX_OFFLOAD_IPV4_CKSUM |
507 DEV_RX_OFFLOAD_UDP_CKSUM |
508 DEV_RX_OFFLOAD_TCP_CKSUM;
509 device_info->tx_offload_capa =
510 DEV_TX_OFFLOAD_VLAN_INSERT |
511 DEV_TX_OFFLOAD_IPV4_CKSUM |
512 DEV_TX_OFFLOAD_UDP_CKSUM |
513 DEV_TX_OFFLOAD_TCP_CKSUM |
514 DEV_TX_OFFLOAD_TCP_TSO;
515 device_info->default_rxconf = (struct rte_eth_rxconf) {
516 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
520 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
522 static const uint32_t ptypes[] = {
524 RTE_PTYPE_L2_ETHER_VLAN,
525 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
526 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
530 RTE_PTYPE_L4_NONFRAG,
534 if (dev->rx_pkt_burst == enic_recv_pkts)
539 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
541 struct enic *enic = pmd_priv(eth_dev);
543 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
546 ENICPMD_FUNC_TRACE();
549 enic_add_packet_filter(enic);
552 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
554 struct enic *enic = pmd_priv(eth_dev);
556 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
559 ENICPMD_FUNC_TRACE();
561 enic_add_packet_filter(enic);
564 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
566 struct enic *enic = pmd_priv(eth_dev);
568 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
571 ENICPMD_FUNC_TRACE();
573 enic_add_packet_filter(enic);
576 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
578 struct enic *enic = pmd_priv(eth_dev);
580 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
583 ENICPMD_FUNC_TRACE();
585 enic_add_packet_filter(enic);
588 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
589 struct ether_addr *mac_addr,
590 __rte_unused uint32_t index, __rte_unused uint32_t pool)
592 struct enic *enic = pmd_priv(eth_dev);
594 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
595 return -E_RTE_SECONDARY;
597 ENICPMD_FUNC_TRACE();
598 return enic_set_mac_address(enic, mac_addr->addr_bytes);
601 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
603 struct enic *enic = pmd_priv(eth_dev);
605 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
608 ENICPMD_FUNC_TRACE();
609 enic_del_mac_address(enic, index);
612 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
614 struct enic *enic = pmd_priv(eth_dev);
616 ENICPMD_FUNC_TRACE();
617 return enic_set_mtu(enic, mtu);
620 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
621 .dev_configure = enicpmd_dev_configure,
622 .dev_start = enicpmd_dev_start,
623 .dev_stop = enicpmd_dev_stop,
624 .dev_set_link_up = NULL,
625 .dev_set_link_down = NULL,
626 .dev_close = enicpmd_dev_close,
627 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
628 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
629 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
630 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
631 .link_update = enicpmd_dev_link_update,
632 .stats_get = enicpmd_dev_stats_get,
633 .stats_reset = enicpmd_dev_stats_reset,
634 .queue_stats_mapping_set = NULL,
635 .dev_infos_get = enicpmd_dev_info_get,
636 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
637 .mtu_set = enicpmd_mtu_set,
638 .vlan_filter_set = enicpmd_vlan_filter_set,
639 .vlan_tpid_set = NULL,
640 .vlan_offload_set = enicpmd_vlan_offload_set,
641 .vlan_strip_queue_set = NULL,
642 .rx_queue_start = enicpmd_dev_rx_queue_start,
643 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
644 .tx_queue_start = enicpmd_dev_tx_queue_start,
645 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
646 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
647 .rx_queue_release = enicpmd_dev_rx_queue_release,
648 .rx_queue_count = enicpmd_dev_rx_queue_count,
649 .rx_descriptor_done = NULL,
650 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
651 .tx_queue_release = enicpmd_dev_tx_queue_release,
654 .flow_ctrl_get = NULL,
655 .flow_ctrl_set = NULL,
656 .priority_flow_ctrl_set = NULL,
657 .mac_addr_add = enicpmd_add_mac_addr,
658 .mac_addr_remove = enicpmd_remove_mac_addr,
659 .filter_ctrl = enicpmd_dev_filter_ctrl,
662 struct enic *enicpmd_list_head = NULL;
663 /* Initialize the driver
664 * It returns 0 on success.
666 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
668 struct rte_pci_device *pdev;
669 struct rte_pci_addr *addr;
670 struct enic *enic = pmd_priv(eth_dev);
672 ENICPMD_FUNC_TRACE();
674 enic->port_id = eth_dev->data->port_id;
675 enic->rte_dev = eth_dev;
676 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
677 eth_dev->rx_pkt_burst = &enic_recv_pkts;
678 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
680 pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
681 rte_eth_copy_pci_info(eth_dev, pdev);
685 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
686 addr->domain, addr->bus, addr->devid, addr->function);
688 return enic_probe(enic);
691 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
692 struct rte_pci_device *pci_dev)
694 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
695 eth_enicpmd_dev_init);
698 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
700 return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
703 static struct rte_pci_driver rte_enic_pmd = {
704 .id_table = pci_id_enic_map,
705 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
706 .probe = eth_enic_pci_probe,
707 .remove = eth_enic_pci_remove,
710 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
711 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
712 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");