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_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 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 enic->rq[queue_idx].rx_free_thresh = rx_conf->rx_free_thresh;
274 dev_debug(enic, "Set queue_id:%u free thresh:%u\n", queue_idx,
275 enic->rq[queue_idx].rx_free_thresh);
277 return enicpmd_dev_setup_intr(enic);
280 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
281 uint16_t vlan_id, int on)
283 struct enic *enic = pmd_priv(eth_dev);
286 ENICPMD_FUNC_TRACE();
288 err = enic_add_vlan(enic, vlan_id);
290 err = enic_del_vlan(enic, vlan_id);
294 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
296 struct enic *enic = pmd_priv(eth_dev);
298 ENICPMD_FUNC_TRACE();
300 if (mask & ETH_VLAN_STRIP_MASK) {
301 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
302 enic->ig_vlan_strip_en = 1;
304 enic->ig_vlan_strip_en = 0;
306 enic_set_rss_nic_cfg(enic);
309 if (mask & ETH_VLAN_FILTER_MASK) {
311 "Configuration of VLAN filter is not supported\n");
314 if (mask & ETH_VLAN_EXTEND_MASK) {
316 "Configuration of extended VLAN is not supported\n");
320 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
323 struct enic *enic = pmd_priv(eth_dev);
325 ENICPMD_FUNC_TRACE();
326 ret = enic_set_vnic_res(enic);
328 dev_err(enic, "Set vNIC resource num failed, aborting\n");
332 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
333 eth_dev->data->dev_conf.rxmode.header_split) {
334 /* Enable header-data-split */
335 enic_set_hdr_split_size(enic,
336 eth_dev->data->dev_conf.rxmode.split_hdr_size);
339 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
344 * It returns 0 on success.
346 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
348 struct enic *enic = pmd_priv(eth_dev);
350 ENICPMD_FUNC_TRACE();
351 return enic_enable(enic);
355 * Stop device: disable rx and tx functions to allow for reconfiguring.
357 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
359 struct rte_eth_link link;
360 struct enic *enic = pmd_priv(eth_dev);
362 ENICPMD_FUNC_TRACE();
364 memset(&link, 0, sizeof(link));
365 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
366 *(uint64_t *)ð_dev->data->dev_link,
373 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
375 struct enic *enic = pmd_priv(eth_dev);
377 ENICPMD_FUNC_TRACE();
381 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
382 __rte_unused int wait_to_complete)
384 struct enic *enic = pmd_priv(eth_dev);
388 ENICPMD_FUNC_TRACE();
389 link_status = enic_get_link_status(enic);
390 ret = (link_status == enic->link_status);
391 enic->link_status = link_status;
392 eth_dev->data->dev_link.link_status = link_status;
393 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
394 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
398 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
399 struct rte_eth_stats *stats)
401 struct enic *enic = pmd_priv(eth_dev);
403 ENICPMD_FUNC_TRACE();
404 enic_dev_stats_get(enic, stats);
407 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
409 struct enic *enic = pmd_priv(eth_dev);
411 ENICPMD_FUNC_TRACE();
412 enic_dev_stats_clear(enic);
415 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
416 struct rte_eth_dev_info *device_info)
418 struct enic *enic = pmd_priv(eth_dev);
420 ENICPMD_FUNC_TRACE();
421 device_info->max_rx_queues = enic->rq_count;
422 device_info->max_tx_queues = enic->wq_count;
423 device_info->min_rx_bufsize = ENIC_MIN_MTU;
424 device_info->max_rx_pktlen = enic->config.mtu;
425 device_info->max_mac_addrs = 1;
426 device_info->rx_offload_capa =
427 DEV_RX_OFFLOAD_VLAN_STRIP |
428 DEV_RX_OFFLOAD_IPV4_CKSUM |
429 DEV_RX_OFFLOAD_UDP_CKSUM |
430 DEV_RX_OFFLOAD_TCP_CKSUM;
431 device_info->tx_offload_capa =
432 DEV_TX_OFFLOAD_VLAN_INSERT |
433 DEV_TX_OFFLOAD_IPV4_CKSUM |
434 DEV_TX_OFFLOAD_UDP_CKSUM |
435 DEV_TX_OFFLOAD_TCP_CKSUM;
436 device_info->default_rxconf = (struct rte_eth_rxconf) {
437 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
441 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
443 struct enic *enic = pmd_priv(eth_dev);
445 ENICPMD_FUNC_TRACE();
447 enic_add_packet_filter(enic);
450 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
452 struct enic *enic = pmd_priv(eth_dev);
454 ENICPMD_FUNC_TRACE();
456 enic_add_packet_filter(enic);
459 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
461 struct enic *enic = pmd_priv(eth_dev);
463 ENICPMD_FUNC_TRACE();
465 enic_add_packet_filter(enic);
468 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
470 struct enic *enic = pmd_priv(eth_dev);
472 ENICPMD_FUNC_TRACE();
474 enic_add_packet_filter(enic);
477 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
478 struct ether_addr *mac_addr,
479 __rte_unused uint32_t index, __rte_unused uint32_t pool)
481 struct enic *enic = pmd_priv(eth_dev);
483 ENICPMD_FUNC_TRACE();
484 enic_set_mac_address(enic, mac_addr->addr_bytes);
487 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused uint32_t index)
489 struct enic *enic = pmd_priv(eth_dev);
491 ENICPMD_FUNC_TRACE();
492 enic_del_mac_address(enic);
496 static uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
501 unsigned int pkt_len;
502 unsigned int seg_len;
503 unsigned int inc_len;
504 unsigned int nb_segs;
505 struct rte_mbuf *tx_pkt, *next_tx_pkt;
506 struct vnic_wq *wq = (struct vnic_wq *)tx_queue;
507 struct enic *enic = vnic_dev_priv(wq->vdev);
508 unsigned short vlan_id;
509 unsigned short ol_flags;
510 uint8_t last_seg, eop;
512 for (index = 0; index < nb_pkts; index++) {
515 nb_segs = tx_pkt->nb_segs;
516 if (nb_segs > vnic_wq_desc_avail(wq)) {
518 enic_post_wq_index(wq);
520 /* wq cleanup and try again */
521 if (!enic_cleanup_wq(enic, wq) ||
522 (nb_segs > vnic_wq_desc_avail(wq))) {
526 pkt_len = tx_pkt->pkt_len;
527 vlan_id = tx_pkt->vlan_tci;
528 ol_flags = tx_pkt->ol_flags;
529 for (frags = 0; inc_len < pkt_len; frags++) {
532 next_tx_pkt = tx_pkt->next;
533 seg_len = tx_pkt->data_len;
535 eop = (pkt_len == inc_len) || (!next_tx_pkt);
537 (index == ((unsigned int)nb_pkts - 1));
538 enic_send_pkt(enic, wq, tx_pkt, (unsigned short)seg_len,
539 !frags, eop, last_seg, ol_flags, vlan_id);
540 tx_pkt = next_tx_pkt;
544 enic_cleanup_wq(enic, wq);
548 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
549 .dev_configure = enicpmd_dev_configure,
550 .dev_start = enicpmd_dev_start,
551 .dev_stop = enicpmd_dev_stop,
552 .dev_set_link_up = NULL,
553 .dev_set_link_down = NULL,
554 .dev_close = enicpmd_dev_close,
555 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
556 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
557 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
558 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
559 .link_update = enicpmd_dev_link_update,
560 .stats_get = enicpmd_dev_stats_get,
561 .stats_reset = enicpmd_dev_stats_reset,
562 .queue_stats_mapping_set = NULL,
563 .dev_infos_get = enicpmd_dev_info_get,
565 .vlan_filter_set = enicpmd_vlan_filter_set,
566 .vlan_tpid_set = NULL,
567 .vlan_offload_set = enicpmd_vlan_offload_set,
568 .vlan_strip_queue_set = NULL,
569 .rx_queue_start = enicpmd_dev_rx_queue_start,
570 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
571 .tx_queue_start = enicpmd_dev_tx_queue_start,
572 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
573 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
574 .rx_queue_release = enicpmd_dev_rx_queue_release,
575 .rx_queue_count = NULL,
576 .rx_descriptor_done = NULL,
577 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
578 .tx_queue_release = enicpmd_dev_tx_queue_release,
581 .flow_ctrl_get = NULL,
582 .flow_ctrl_set = NULL,
583 .priority_flow_ctrl_set = NULL,
584 .mac_addr_add = enicpmd_add_mac_addr,
585 .mac_addr_remove = enicpmd_remove_mac_addr,
586 .filter_ctrl = enicpmd_dev_filter_ctrl,
589 struct enic *enicpmd_list_head = NULL;
590 /* Initialize the driver
591 * It returns 0 on success.
593 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
595 struct rte_pci_device *pdev;
596 struct rte_pci_addr *addr;
597 struct enic *enic = pmd_priv(eth_dev);
599 ENICPMD_FUNC_TRACE();
601 enic->port_id = eth_dev->data->port_id;
602 enic->rte_dev = eth_dev;
603 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
604 eth_dev->rx_pkt_burst = &enic_recv_pkts;
605 eth_dev->tx_pkt_burst = &enicpmd_xmit_pkts;
607 pdev = eth_dev->pci_dev;
608 rte_eth_copy_pci_info(eth_dev, pdev);
612 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
613 addr->domain, addr->bus, addr->devid, addr->function);
615 return enic_probe(enic);
618 static struct eth_driver rte_enic_pmd = {
620 .name = "rte_enic_pmd",
621 .id_table = pci_id_enic_map,
622 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
624 .eth_dev_init = eth_enicpmd_dev_init,
625 .dev_private_size = sizeof(struct enic),
628 /* Driver initialization routine.
629 * Invoked once at EAL init time.
630 * Register as the [Poll Mode] Driver of Cisco ENIC device.
633 rte_enic_pmd_init(__rte_unused const char *name,
634 __rte_unused const char *params)
636 ENICPMD_FUNC_TRACE();
638 rte_eth_driver_register(&rte_enic_pmd);
642 static struct rte_driver rte_enic_driver = {
644 .init = rte_enic_pmd_init,
647 PMD_REGISTER_DRIVER(rte_enic_driver);