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"
45 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
47 struct sfc_adapter *sa = dev->data->dev_private;
49 sfc_log_init(sa, "entry");
51 dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
52 dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
54 dev_info->max_rx_queues = sa->rxq_max;
56 /* By default packets are dropped if no descriptors are available */
57 dev_info->default_rxconf.rx_drop_en = 1;
59 dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
60 dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
61 /* The RXQ hardware requires that the descriptor count is a power
62 * of 2, but rx_desc_lim cannot properly describe that constraint.
64 dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
68 sfc_dev_configure(struct rte_eth_dev *dev)
70 struct rte_eth_dev_data *dev_data = dev->data;
71 struct sfc_adapter *sa = dev_data->dev_private;
74 sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
75 dev_data->nb_rx_queues, dev_data->nb_tx_queues);
79 case SFC_ADAPTER_CONFIGURED:
81 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
83 case SFC_ADAPTER_INITIALIZED:
84 rc = sfc_configure(sa);
87 sfc_err(sa, "unexpected adapter state %u to configure",
92 sfc_adapter_unlock(sa);
94 sfc_log_init(sa, "done %d", rc);
100 sfc_dev_start(struct rte_eth_dev *dev)
102 struct sfc_adapter *sa = dev->data->dev_private;
105 sfc_log_init(sa, "entry");
107 sfc_adapter_lock(sa);
109 sfc_adapter_unlock(sa);
111 sfc_log_init(sa, "done %d", rc);
117 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
119 struct sfc_adapter *sa = dev->data->dev_private;
120 struct rte_eth_link *dev_link = &dev->data->dev_link;
121 struct rte_eth_link old_link;
122 struct rte_eth_link current_link;
124 sfc_log_init(sa, "entry");
126 if (sa->state != SFC_ADAPTER_STARTED)
130 EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
131 *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
133 if (wait_to_complete) {
134 efx_link_mode_t link_mode;
136 efx_port_poll(sa->nic, &link_mode);
137 sfc_port_link_mode_to_info(link_mode, ¤t_link);
139 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
140 *(uint64_t *)&old_link,
141 *(uint64_t *)¤t_link))
144 sfc_ev_mgmt_qpoll(sa);
145 *(int64_t *)¤t_link =
146 rte_atomic64_read((rte_atomic64_t *)dev_link);
149 if (old_link.link_status != current_link.link_status)
150 sfc_info(sa, "Link status is %s",
151 current_link.link_status ? "UP" : "DOWN");
153 return old_link.link_status == current_link.link_status ? 0 : -1;
157 sfc_dev_stop(struct rte_eth_dev *dev)
159 struct sfc_adapter *sa = dev->data->dev_private;
161 sfc_log_init(sa, "entry");
163 sfc_adapter_lock(sa);
165 sfc_adapter_unlock(sa);
167 sfc_log_init(sa, "done");
171 sfc_dev_close(struct rte_eth_dev *dev)
173 struct sfc_adapter *sa = dev->data->dev_private;
175 sfc_log_init(sa, "entry");
177 sfc_adapter_lock(sa);
179 case SFC_ADAPTER_STARTED:
181 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
183 case SFC_ADAPTER_CONFIGURED:
185 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
187 case SFC_ADAPTER_INITIALIZED:
190 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
193 sfc_adapter_unlock(sa);
195 sfc_log_init(sa, "done");
199 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
200 uint16_t nb_rx_desc, unsigned int socket_id,
201 const struct rte_eth_rxconf *rx_conf,
202 struct rte_mempool *mb_pool)
204 struct sfc_adapter *sa = dev->data->dev_private;
207 sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
208 rx_queue_id, nb_rx_desc, socket_id);
210 sfc_adapter_lock(sa);
212 rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
217 dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
219 sfc_adapter_unlock(sa);
224 sfc_adapter_unlock(sa);
230 sfc_rx_queue_release(void *queue)
232 struct sfc_rxq *rxq = queue;
233 struct sfc_adapter *sa;
234 unsigned int sw_index;
240 sfc_adapter_lock(sa);
242 sw_index = sfc_rxq_sw_index(rxq);
244 sfc_log_init(sa, "RxQ=%u", sw_index);
246 sa->eth_dev->data->rx_queues[sw_index] = NULL;
248 sfc_rx_qfini(sa, sw_index);
250 sfc_adapter_unlock(sa);
253 static const struct eth_dev_ops sfc_eth_dev_ops = {
254 .dev_configure = sfc_dev_configure,
255 .dev_start = sfc_dev_start,
256 .dev_stop = sfc_dev_stop,
257 .dev_close = sfc_dev_close,
258 .link_update = sfc_dev_link_update,
259 .dev_infos_get = sfc_dev_infos_get,
260 .rx_queue_setup = sfc_rx_queue_setup,
261 .rx_queue_release = sfc_rx_queue_release,
265 sfc_eth_dev_init(struct rte_eth_dev *dev)
267 struct sfc_adapter *sa = dev->data->dev_private;
268 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
270 const efx_nic_cfg_t *encp;
271 const struct ether_addr *from;
273 /* Required for logging */
276 /* Copy PCI device info to the dev->data */
277 rte_eth_copy_pci_info(dev, pci_dev);
279 rc = sfc_kvargs_parse(sa);
281 goto fail_kvargs_parse;
283 rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
284 sfc_kvarg_bool_handler, &sa->debug_init);
286 goto fail_kvarg_debug_init;
288 sfc_log_init(sa, "entry");
290 dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
291 if (dev->data->mac_addrs == NULL) {
296 sfc_adapter_lock_init(sa);
297 sfc_adapter_lock(sa);
299 sfc_log_init(sa, "attaching");
304 encp = efx_nic_cfg_get(sa->nic);
307 * The arguments are really reverse order in comparison to
308 * Linux kernel. Copy from NIC config to Ethernet device data.
310 from = (const struct ether_addr *)(encp->enc_mac_addr);
311 ether_addr_copy(from, &dev->data->mac_addrs[0]);
313 dev->dev_ops = &sfc_eth_dev_ops;
315 sfc_adapter_unlock(sa);
317 sfc_log_init(sa, "done");
321 sfc_adapter_unlock(sa);
322 sfc_adapter_lock_fini(sa);
323 rte_free(dev->data->mac_addrs);
324 dev->data->mac_addrs = NULL;
327 fail_kvarg_debug_init:
328 sfc_kvargs_cleanup(sa);
331 sfc_log_init(sa, "failed %d", rc);
337 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
339 struct sfc_adapter *sa = dev->data->dev_private;
341 sfc_log_init(sa, "entry");
343 sfc_adapter_lock(sa);
347 rte_free(dev->data->mac_addrs);
348 dev->data->mac_addrs = NULL;
352 sfc_kvargs_cleanup(sa);
354 sfc_adapter_unlock(sa);
355 sfc_adapter_lock_fini(sa);
357 sfc_log_init(sa, "done");
359 /* Required for logging, so cleanup last */
364 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
365 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
366 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
367 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
368 { .vendor_id = 0 /* sentinel */ }
371 static struct eth_driver sfc_efx_pmd = {
373 .id_table = pci_id_sfc_efx_map,
375 RTE_PCI_DRV_NEED_MAPPING,
376 .probe = rte_eth_dev_pci_probe,
377 .remove = rte_eth_dev_pci_remove,
379 .eth_dev_init = sfc_eth_dev_init,
380 .eth_dev_uninit = sfc_eth_dev_uninit,
381 .dev_private_size = sizeof(struct sfc_adapter),
384 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
385 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
386 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
387 SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);