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_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 if (RTE_ETH_FILTER_FDIR == filter_type)
122 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
124 dev_warning(enic, "Filter type (%d) not supported",
130 static void enicpmd_dev_tx_queue_release(void *txq)
132 ENICPMD_FUNC_TRACE();
136 static int enicpmd_dev_setup_intr(struct enic *enic)
141 ENICPMD_FUNC_TRACE();
143 /* Are we done with the init of all the queues? */
144 for (index = 0; index < enic->cq_count; index++) {
145 if (!enic->cq[index].ctrl)
148 if (enic->cq_count != index)
150 for (index = 0; index < enic->wq_count; index++) {
151 if (!enic->wq[index].ctrl)
154 if (enic->wq_count != index)
156 /* check start of packet (SOP) RQs only in case scatter is disabled. */
157 for (index = 0; index < enic->rq_count; index++) {
158 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
161 if (enic->rq_count != index)
164 ret = enic_alloc_intr_resources(enic);
166 dev_err(enic, "alloc intr failed\n");
169 enic_init_vnic_resources(enic);
171 ret = enic_setup_finish(enic);
173 dev_err(enic, "setup could not be finished\n");
178 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
181 unsigned int socket_id,
182 __rte_unused const struct rte_eth_txconf *tx_conf)
185 struct enic *enic = pmd_priv(eth_dev);
187 ENICPMD_FUNC_TRACE();
188 if (queue_idx >= ENIC_WQ_MAX) {
190 "Max number of TX queues exceeded. Max is %d\n",
195 eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
197 ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
199 dev_err(enic, "error in allocating wq\n");
203 return enicpmd_dev_setup_intr(enic);
206 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
209 struct enic *enic = pmd_priv(eth_dev);
211 ENICPMD_FUNC_TRACE();
213 enic_start_wq(enic, queue_idx);
218 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
222 struct enic *enic = pmd_priv(eth_dev);
224 ENICPMD_FUNC_TRACE();
226 ret = enic_stop_wq(enic, queue_idx);
228 dev_err(enic, "error in stopping wq %d\n", queue_idx);
233 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
236 struct enic *enic = pmd_priv(eth_dev);
238 ENICPMD_FUNC_TRACE();
240 enic_start_rq(enic, queue_idx);
245 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
249 struct enic *enic = pmd_priv(eth_dev);
251 ENICPMD_FUNC_TRACE();
253 ret = enic_stop_rq(enic, queue_idx);
255 dev_err(enic, "error in stopping rq %d\n", queue_idx);
260 static void enicpmd_dev_rx_queue_release(void *rxq)
262 ENICPMD_FUNC_TRACE();
266 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
267 uint16_t rx_queue_id)
269 struct enic *enic = pmd_priv(dev);
270 uint32_t queue_count = 0;
276 rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
277 cq = &enic->cq[enic_cq_rq(enic, rq_num)];
278 cq_idx = cq->to_clean;
280 cq_tail = ioread32(&cq->ctrl->cq_tail);
282 if (cq_tail < cq_idx)
283 cq_tail += cq->ring.desc_count;
285 queue_count = cq_tail - cq_idx;
290 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
293 unsigned int socket_id,
294 const struct rte_eth_rxconf *rx_conf,
295 struct rte_mempool *mp)
298 struct enic *enic = pmd_priv(eth_dev);
300 ENICPMD_FUNC_TRACE();
301 /* With Rx scatter support, two RQs are now used on VIC per RQ used
302 * by the application.
304 if (queue_idx * 2 >= ENIC_RQ_MAX) {
306 "Max number of RX queues exceeded. Max is %d. This PMD uses 2 RQs on VIC per RQ used by DPDK.\n",
311 eth_dev->data->rx_queues[queue_idx] =
312 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
314 ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
315 rx_conf->rx_free_thresh);
317 dev_err(enic, "error in allocating rq\n");
321 return enicpmd_dev_setup_intr(enic);
324 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
325 uint16_t vlan_id, int on)
327 struct enic *enic = pmd_priv(eth_dev);
330 ENICPMD_FUNC_TRACE();
332 err = enic_add_vlan(enic, vlan_id);
334 err = enic_del_vlan(enic, vlan_id);
338 static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
340 struct enic *enic = pmd_priv(eth_dev);
342 ENICPMD_FUNC_TRACE();
344 if (mask & ETH_VLAN_STRIP_MASK) {
345 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
346 enic->ig_vlan_strip_en = 1;
348 enic->ig_vlan_strip_en = 0;
350 enic_set_rss_nic_cfg(enic);
353 if (mask & ETH_VLAN_FILTER_MASK) {
355 "Configuration of VLAN filter is not supported\n");
358 if (mask & ETH_VLAN_EXTEND_MASK) {
360 "Configuration of extended VLAN is not supported\n");
364 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
367 struct enic *enic = pmd_priv(eth_dev);
369 ENICPMD_FUNC_TRACE();
370 ret = enic_set_vnic_res(enic);
372 dev_err(enic, "Set vNIC resource num failed, aborting\n");
376 if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
377 eth_dev->data->dev_conf.rxmode.header_split) {
378 /* Enable header-data-split */
379 enic_set_hdr_split_size(enic,
380 eth_dev->data->dev_conf.rxmode.split_hdr_size);
383 enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
384 enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
389 * It returns 0 on success.
391 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
393 struct enic *enic = pmd_priv(eth_dev);
395 ENICPMD_FUNC_TRACE();
396 return enic_enable(enic);
400 * Stop device: disable rx and tx functions to allow for reconfiguring.
402 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
404 struct rte_eth_link link;
405 struct enic *enic = pmd_priv(eth_dev);
407 ENICPMD_FUNC_TRACE();
409 memset(&link, 0, sizeof(link));
410 rte_atomic64_cmpset((uint64_t *)ð_dev->data->dev_link,
411 *(uint64_t *)ð_dev->data->dev_link,
418 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
420 struct enic *enic = pmd_priv(eth_dev);
422 ENICPMD_FUNC_TRACE();
426 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
427 __rte_unused int wait_to_complete)
429 struct enic *enic = pmd_priv(eth_dev);
431 ENICPMD_FUNC_TRACE();
432 return enic_link_update(enic);
435 static void enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
436 struct rte_eth_stats *stats)
438 struct enic *enic = pmd_priv(eth_dev);
440 ENICPMD_FUNC_TRACE();
441 enic_dev_stats_get(enic, stats);
444 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
446 struct enic *enic = pmd_priv(eth_dev);
448 ENICPMD_FUNC_TRACE();
449 enic_dev_stats_clear(enic);
452 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
453 struct rte_eth_dev_info *device_info)
455 struct enic *enic = pmd_priv(eth_dev);
457 ENICPMD_FUNC_TRACE();
458 device_info->pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
459 /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
460 device_info->max_rx_queues = enic->conf_rq_count / 2;
461 device_info->max_tx_queues = enic->conf_wq_count;
462 device_info->min_rx_bufsize = ENIC_MIN_MTU;
463 device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4;
464 device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
465 device_info->rx_offload_capa =
466 DEV_RX_OFFLOAD_VLAN_STRIP |
467 DEV_RX_OFFLOAD_IPV4_CKSUM |
468 DEV_RX_OFFLOAD_UDP_CKSUM |
469 DEV_RX_OFFLOAD_TCP_CKSUM;
470 device_info->tx_offload_capa =
471 DEV_TX_OFFLOAD_VLAN_INSERT |
472 DEV_TX_OFFLOAD_IPV4_CKSUM |
473 DEV_TX_OFFLOAD_UDP_CKSUM |
474 DEV_TX_OFFLOAD_TCP_CKSUM |
475 DEV_TX_OFFLOAD_TCP_TSO;
476 device_info->default_rxconf = (struct rte_eth_rxconf) {
477 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
481 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
483 static const uint32_t ptypes[] = {
485 RTE_PTYPE_L2_ETHER_VLAN,
486 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
487 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
491 RTE_PTYPE_L4_NONFRAG,
495 if (dev->rx_pkt_burst == enic_recv_pkts)
500 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
502 struct enic *enic = pmd_priv(eth_dev);
504 ENICPMD_FUNC_TRACE();
506 enic_add_packet_filter(enic);
509 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
511 struct enic *enic = pmd_priv(eth_dev);
513 ENICPMD_FUNC_TRACE();
515 enic_add_packet_filter(enic);
518 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
520 struct enic *enic = pmd_priv(eth_dev);
522 ENICPMD_FUNC_TRACE();
524 enic_add_packet_filter(enic);
527 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
529 struct enic *enic = pmd_priv(eth_dev);
531 ENICPMD_FUNC_TRACE();
533 enic_add_packet_filter(enic);
536 static void enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
537 struct ether_addr *mac_addr,
538 __rte_unused uint32_t index, __rte_unused uint32_t pool)
540 struct enic *enic = pmd_priv(eth_dev);
542 ENICPMD_FUNC_TRACE();
543 enic_set_mac_address(enic, mac_addr->addr_bytes);
546 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
548 struct enic *enic = pmd_priv(eth_dev);
550 ENICPMD_FUNC_TRACE();
551 enic_del_mac_address(enic, index);
554 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
556 struct enic *enic = pmd_priv(eth_dev);
558 ENICPMD_FUNC_TRACE();
559 return enic_set_mtu(enic, mtu);
562 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
563 .dev_configure = enicpmd_dev_configure,
564 .dev_start = enicpmd_dev_start,
565 .dev_stop = enicpmd_dev_stop,
566 .dev_set_link_up = NULL,
567 .dev_set_link_down = NULL,
568 .dev_close = enicpmd_dev_close,
569 .promiscuous_enable = enicpmd_dev_promiscuous_enable,
570 .promiscuous_disable = enicpmd_dev_promiscuous_disable,
571 .allmulticast_enable = enicpmd_dev_allmulticast_enable,
572 .allmulticast_disable = enicpmd_dev_allmulticast_disable,
573 .link_update = enicpmd_dev_link_update,
574 .stats_get = enicpmd_dev_stats_get,
575 .stats_reset = enicpmd_dev_stats_reset,
576 .queue_stats_mapping_set = NULL,
577 .dev_infos_get = enicpmd_dev_info_get,
578 .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
579 .mtu_set = enicpmd_mtu_set,
580 .vlan_filter_set = enicpmd_vlan_filter_set,
581 .vlan_tpid_set = NULL,
582 .vlan_offload_set = enicpmd_vlan_offload_set,
583 .vlan_strip_queue_set = NULL,
584 .rx_queue_start = enicpmd_dev_rx_queue_start,
585 .rx_queue_stop = enicpmd_dev_rx_queue_stop,
586 .tx_queue_start = enicpmd_dev_tx_queue_start,
587 .tx_queue_stop = enicpmd_dev_tx_queue_stop,
588 .rx_queue_setup = enicpmd_dev_rx_queue_setup,
589 .rx_queue_release = enicpmd_dev_rx_queue_release,
590 .rx_queue_count = enicpmd_dev_rx_queue_count,
591 .rx_descriptor_done = NULL,
592 .tx_queue_setup = enicpmd_dev_tx_queue_setup,
593 .tx_queue_release = enicpmd_dev_tx_queue_release,
596 .flow_ctrl_get = NULL,
597 .flow_ctrl_set = NULL,
598 .priority_flow_ctrl_set = NULL,
599 .mac_addr_add = enicpmd_add_mac_addr,
600 .mac_addr_remove = enicpmd_remove_mac_addr,
601 .filter_ctrl = enicpmd_dev_filter_ctrl,
604 struct enic *enicpmd_list_head = NULL;
605 /* Initialize the driver
606 * It returns 0 on success.
608 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
610 struct rte_pci_device *pdev;
611 struct rte_pci_addr *addr;
612 struct enic *enic = pmd_priv(eth_dev);
614 ENICPMD_FUNC_TRACE();
616 enic->port_id = eth_dev->data->port_id;
617 enic->rte_dev = eth_dev;
618 eth_dev->dev_ops = &enicpmd_eth_dev_ops;
619 eth_dev->rx_pkt_burst = &enic_recv_pkts;
620 eth_dev->tx_pkt_burst = &enic_xmit_pkts;
622 pdev = RTE_DEV_TO_PCI(eth_dev->device);
623 rte_eth_copy_pci_info(eth_dev, pdev);
627 snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
628 addr->domain, addr->bus, addr->devid, addr->function);
630 return enic_probe(enic);
633 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
634 struct rte_pci_device *pci_dev)
636 return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
637 eth_enicpmd_dev_init);
640 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
642 return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
645 static struct rte_pci_driver rte_enic_pmd = {
646 .id_table = pci_id_enic_map,
647 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
648 .probe = eth_enic_pci_probe,
649 .remove = eth_enic_pci_remove,
652 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
653 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
654 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio");