2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <rte_ethdev.h>
37 #include "sfc_debug.h"
39 #include "sfc_kvargs.h"
46 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
48 struct sfc_adapter *sa = dev->data->dev_private;
50 sfc_log_init(sa, "entry");
52 dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
53 dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
55 dev_info->max_rx_queues = sa->rxq_max;
56 dev_info->max_tx_queues = sa->txq_max;
58 /* By default packets are dropped if no descriptors are available */
59 dev_info->default_rxconf.rx_drop_en = 1;
61 dev_info->tx_offload_capa =
62 DEV_TX_OFFLOAD_IPV4_CKSUM |
63 DEV_TX_OFFLOAD_UDP_CKSUM |
64 DEV_TX_OFFLOAD_TCP_CKSUM;
66 dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOVLANOFFL |
67 ETH_TXQ_FLAGS_NOXSUMSCTP;
69 dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
70 dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
71 /* The RXQ hardware requires that the descriptor count is a power
72 * of 2, but rx_desc_lim cannot properly describe that constraint.
74 dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
76 dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
77 dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
79 * The TXQ hardware requires that the descriptor count is a power
80 * of 2, but tx_desc_lim cannot properly describe that constraint
82 dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
86 sfc_dev_configure(struct rte_eth_dev *dev)
88 struct rte_eth_dev_data *dev_data = dev->data;
89 struct sfc_adapter *sa = dev_data->dev_private;
92 sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
93 dev_data->nb_rx_queues, dev_data->nb_tx_queues);
97 case SFC_ADAPTER_CONFIGURED:
99 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
101 case SFC_ADAPTER_INITIALIZED:
102 rc = sfc_configure(sa);
105 sfc_err(sa, "unexpected adapter state %u to configure",
110 sfc_adapter_unlock(sa);
112 sfc_log_init(sa, "done %d", rc);
118 sfc_dev_start(struct rte_eth_dev *dev)
120 struct sfc_adapter *sa = dev->data->dev_private;
123 sfc_log_init(sa, "entry");
125 sfc_adapter_lock(sa);
127 sfc_adapter_unlock(sa);
129 sfc_log_init(sa, "done %d", rc);
135 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
137 struct sfc_adapter *sa = dev->data->dev_private;
138 struct rte_eth_link *dev_link = &dev->data->dev_link;
139 struct rte_eth_link old_link;
140 struct rte_eth_link current_link;
142 sfc_log_init(sa, "entry");
144 if (sa->state != SFC_ADAPTER_STARTED)
148 EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
149 *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
151 if (wait_to_complete) {
152 efx_link_mode_t link_mode;
154 efx_port_poll(sa->nic, &link_mode);
155 sfc_port_link_mode_to_info(link_mode, ¤t_link);
157 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
158 *(uint64_t *)&old_link,
159 *(uint64_t *)¤t_link))
162 sfc_ev_mgmt_qpoll(sa);
163 *(int64_t *)¤t_link =
164 rte_atomic64_read((rte_atomic64_t *)dev_link);
167 if (old_link.link_status != current_link.link_status)
168 sfc_info(sa, "Link status is %s",
169 current_link.link_status ? "UP" : "DOWN");
171 return old_link.link_status == current_link.link_status ? 0 : -1;
175 sfc_dev_stop(struct rte_eth_dev *dev)
177 struct sfc_adapter *sa = dev->data->dev_private;
179 sfc_log_init(sa, "entry");
181 sfc_adapter_lock(sa);
183 sfc_adapter_unlock(sa);
185 sfc_log_init(sa, "done");
189 sfc_dev_close(struct rte_eth_dev *dev)
191 struct sfc_adapter *sa = dev->data->dev_private;
193 sfc_log_init(sa, "entry");
195 sfc_adapter_lock(sa);
197 case SFC_ADAPTER_STARTED:
199 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
201 case SFC_ADAPTER_CONFIGURED:
203 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
205 case SFC_ADAPTER_INITIALIZED:
208 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
211 sfc_adapter_unlock(sa);
213 sfc_log_init(sa, "done");
217 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
218 uint16_t nb_rx_desc, unsigned int socket_id,
219 const struct rte_eth_rxconf *rx_conf,
220 struct rte_mempool *mb_pool)
222 struct sfc_adapter *sa = dev->data->dev_private;
225 sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
226 rx_queue_id, nb_rx_desc, socket_id);
228 sfc_adapter_lock(sa);
230 rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
235 dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
237 sfc_adapter_unlock(sa);
242 sfc_adapter_unlock(sa);
248 sfc_rx_queue_release(void *queue)
250 struct sfc_rxq *rxq = queue;
251 struct sfc_adapter *sa;
252 unsigned int sw_index;
258 sfc_adapter_lock(sa);
260 sw_index = sfc_rxq_sw_index(rxq);
262 sfc_log_init(sa, "RxQ=%u", sw_index);
264 sa->eth_dev->data->rx_queues[sw_index] = NULL;
266 sfc_rx_qfini(sa, sw_index);
268 sfc_adapter_unlock(sa);
272 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
273 uint16_t nb_tx_desc, unsigned int socket_id,
274 const struct rte_eth_txconf *tx_conf)
276 struct sfc_adapter *sa = dev->data->dev_private;
279 sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
280 tx_queue_id, nb_tx_desc, socket_id);
282 sfc_adapter_lock(sa);
284 rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
288 dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq;
290 sfc_adapter_unlock(sa);
294 sfc_adapter_unlock(sa);
300 sfc_tx_queue_release(void *queue)
302 struct sfc_txq *txq = queue;
303 unsigned int sw_index;
304 struct sfc_adapter *sa;
309 sw_index = sfc_txq_sw_index(txq);
311 SFC_ASSERT(txq->evq != NULL);
314 sfc_log_init(sa, "TxQ = %u", sw_index);
316 sfc_adapter_lock(sa);
318 SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
319 sa->eth_dev->data->tx_queues[sw_index] = NULL;
321 sfc_tx_qfini(sa, sw_index);
323 sfc_adapter_unlock(sa);
327 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
329 struct sfc_adapter *sa = dev->data->dev_private;
330 struct sfc_port *port = &sa->port;
333 rte_spinlock_lock(&port->mac_stats_lock);
335 if (sfc_port_update_mac_stats(sa) != 0)
338 mac_stats = port->mac_stats_buf;
340 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
341 EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
343 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
344 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
345 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
347 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
348 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
349 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
351 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
352 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
353 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
355 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
356 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
357 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
358 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
359 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
360 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
362 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
363 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
364 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
365 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
367 * Take into account stats which are whenever supported
368 * on EF10. If some stat is not supported by current
369 * firmware variant or HW revision, it is guaranteed
370 * to be zero in mac_stats.
373 mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
374 mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
375 mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
376 mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
377 mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
378 mac_stats[EFX_MAC_PM_TRUNC_QBB] +
379 mac_stats[EFX_MAC_PM_DISCARD_QBB] +
380 mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
381 mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
382 mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
384 mac_stats[EFX_MAC_RX_FCS_ERRORS] +
385 mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
386 mac_stats[EFX_MAC_RX_JABBER_PKTS];
387 /* no oerrors counters supported on EF10 */
391 rte_spinlock_unlock(&port->mac_stats_lock);
395 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
396 unsigned int xstats_count)
398 struct sfc_adapter *sa = dev->data->dev_private;
399 struct sfc_port *port = &sa->port;
405 rte_spinlock_lock(&port->mac_stats_lock);
407 rc = sfc_port_update_mac_stats(sa);
414 mac_stats = port->mac_stats_buf;
416 for (i = 0; i < EFX_MAC_NSTATS; ++i) {
417 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
418 if (xstats != NULL && nstats < (int)xstats_count) {
419 xstats[nstats].id = nstats;
420 xstats[nstats].value = mac_stats[i];
427 rte_spinlock_unlock(&port->mac_stats_lock);
433 sfc_xstats_get_names(struct rte_eth_dev *dev,
434 struct rte_eth_xstat_name *xstats_names,
435 unsigned int xstats_count)
437 struct sfc_adapter *sa = dev->data->dev_private;
438 struct sfc_port *port = &sa->port;
440 unsigned int nstats = 0;
442 for (i = 0; i < EFX_MAC_NSTATS; ++i) {
443 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
444 if (xstats_names != NULL && nstats < xstats_count)
445 strncpy(xstats_names[nstats].name,
446 efx_mac_stat_name(sa->nic, i),
447 sizeof(xstats_names[0].name));
456 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
458 struct sfc_adapter *sa = dev->data->dev_private;
459 unsigned int wanted_fc, link_fc;
461 memset(fc_conf, 0, sizeof(*fc_conf));
463 sfc_adapter_lock(sa);
465 if (sa->state == SFC_ADAPTER_STARTED)
466 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
468 link_fc = sa->port.flow_ctrl;
472 fc_conf->mode = RTE_FC_NONE;
474 case EFX_FCNTL_RESPOND:
475 fc_conf->mode = RTE_FC_RX_PAUSE;
477 case EFX_FCNTL_GENERATE:
478 fc_conf->mode = RTE_FC_TX_PAUSE;
480 case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
481 fc_conf->mode = RTE_FC_FULL;
484 sfc_err(sa, "%s: unexpected flow control value %#x",
488 fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
490 sfc_adapter_unlock(sa);
496 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
498 struct sfc_adapter *sa = dev->data->dev_private;
499 struct sfc_port *port = &sa->port;
503 if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
504 fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
505 fc_conf->mac_ctrl_frame_fwd != 0) {
506 sfc_err(sa, "unsupported flow control settings specified");
511 switch (fc_conf->mode) {
515 case RTE_FC_RX_PAUSE:
516 fcntl = EFX_FCNTL_RESPOND;
518 case RTE_FC_TX_PAUSE:
519 fcntl = EFX_FCNTL_GENERATE;
522 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
529 sfc_adapter_lock(sa);
531 if (sa->state == SFC_ADAPTER_STARTED) {
532 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
534 goto fail_mac_fcntl_set;
537 port->flow_ctrl = fcntl;
538 port->flow_ctrl_autoneg = fc_conf->autoneg;
540 sfc_adapter_unlock(sa);
545 sfc_adapter_unlock(sa);
552 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
554 struct sfc_adapter *sa = dev->data->dev_private;
555 size_t pdu = EFX_MAC_PDU(mtu);
559 sfc_log_init(sa, "mtu=%u", mtu);
562 if (pdu < EFX_MAC_PDU_MIN) {
563 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
564 (unsigned int)mtu, (unsigned int)pdu,
568 if (pdu > EFX_MAC_PDU_MAX) {
569 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
570 (unsigned int)mtu, (unsigned int)pdu,
575 sfc_adapter_lock(sa);
577 if (pdu != sa->port.pdu) {
578 if (sa->state == SFC_ADAPTER_STARTED) {
581 old_pdu = sa->port.pdu;
592 * The driver does not use it, but other PMDs update jumbo_frame
593 * flag and max_rx_pkt_len when MTU is set.
595 dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
596 dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
598 sfc_adapter_unlock(sa);
600 sfc_log_init(sa, "done");
604 sa->port.pdu = old_pdu;
605 if (sfc_start(sa) != 0)
606 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
607 "PDU max size - port is stopped",
608 (unsigned int)pdu, (unsigned int)old_pdu);
609 sfc_adapter_unlock(sa);
612 sfc_log_init(sa, "failed %d", rc);
617 static const struct eth_dev_ops sfc_eth_dev_ops = {
618 .dev_configure = sfc_dev_configure,
619 .dev_start = sfc_dev_start,
620 .dev_stop = sfc_dev_stop,
621 .dev_close = sfc_dev_close,
622 .link_update = sfc_dev_link_update,
623 .stats_get = sfc_stats_get,
624 .xstats_get = sfc_xstats_get,
625 .xstats_get_names = sfc_xstats_get_names,
626 .dev_infos_get = sfc_dev_infos_get,
627 .mtu_set = sfc_dev_set_mtu,
628 .rx_queue_setup = sfc_rx_queue_setup,
629 .rx_queue_release = sfc_rx_queue_release,
630 .tx_queue_setup = sfc_tx_queue_setup,
631 .tx_queue_release = sfc_tx_queue_release,
632 .flow_ctrl_get = sfc_flow_ctrl_get,
633 .flow_ctrl_set = sfc_flow_ctrl_set,
637 sfc_eth_dev_init(struct rte_eth_dev *dev)
639 struct sfc_adapter *sa = dev->data->dev_private;
640 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
642 const efx_nic_cfg_t *encp;
643 const struct ether_addr *from;
645 /* Required for logging */
648 /* Copy PCI device info to the dev->data */
649 rte_eth_copy_pci_info(dev, pci_dev);
651 rc = sfc_kvargs_parse(sa);
653 goto fail_kvargs_parse;
655 rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
656 sfc_kvarg_bool_handler, &sa->debug_init);
658 goto fail_kvarg_debug_init;
660 sfc_log_init(sa, "entry");
662 dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
663 if (dev->data->mac_addrs == NULL) {
668 sfc_adapter_lock_init(sa);
669 sfc_adapter_lock(sa);
671 sfc_log_init(sa, "attaching");
676 encp = efx_nic_cfg_get(sa->nic);
679 * The arguments are really reverse order in comparison to
680 * Linux kernel. Copy from NIC config to Ethernet device data.
682 from = (const struct ether_addr *)(encp->enc_mac_addr);
683 ether_addr_copy(from, &dev->data->mac_addrs[0]);
685 dev->dev_ops = &sfc_eth_dev_ops;
686 dev->rx_pkt_burst = &sfc_recv_pkts;
687 dev->tx_pkt_burst = &sfc_xmit_pkts;
689 sfc_adapter_unlock(sa);
691 sfc_log_init(sa, "done");
695 sfc_adapter_unlock(sa);
696 sfc_adapter_lock_fini(sa);
697 rte_free(dev->data->mac_addrs);
698 dev->data->mac_addrs = NULL;
701 fail_kvarg_debug_init:
702 sfc_kvargs_cleanup(sa);
705 sfc_log_init(sa, "failed %d", rc);
711 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
713 struct sfc_adapter *sa = dev->data->dev_private;
715 sfc_log_init(sa, "entry");
717 sfc_adapter_lock(sa);
721 rte_free(dev->data->mac_addrs);
722 dev->data->mac_addrs = NULL;
725 dev->rx_pkt_burst = NULL;
726 dev->tx_pkt_burst = NULL;
728 sfc_kvargs_cleanup(sa);
730 sfc_adapter_unlock(sa);
731 sfc_adapter_lock_fini(sa);
733 sfc_log_init(sa, "done");
735 /* Required for logging, so cleanup last */
740 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
741 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
742 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
743 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
744 { .vendor_id = 0 /* sentinel */ }
747 static struct eth_driver sfc_efx_pmd = {
749 .id_table = pci_id_sfc_efx_map,
751 RTE_PCI_DRV_INTR_LSC |
752 RTE_PCI_DRV_NEED_MAPPING,
753 .probe = rte_eth_dev_pci_probe,
754 .remove = rte_eth_dev_pci_remove,
756 .eth_dev_init = sfc_eth_dev_init,
757 .eth_dev_uninit = sfc_eth_dev_uninit,
758 .dev_private_size = sizeof(struct sfc_adapter),
761 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
762 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
763 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
764 SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
765 SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
766 SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);