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.
34 #include "sfc_kvargs.h"
36 /** Default MAC statistics update period is 1 second */
37 #define SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF MS_PER_S
39 /** The number of microseconds to sleep on attempt to get statistics update */
40 #define SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US 10
42 /** The number of attempts to await arrival of freshly generated statistics */
43 #define SFC_MAC_STATS_UPDATE_NB_ATTEMPTS 50
46 * Update MAC statistics in the buffer.
52 * @retval EAGAIN Try again
53 * @retval ENOMEM Memory allocation failure
56 sfc_port_update_mac_stats(struct sfc_adapter *sa)
58 struct sfc_port *port = &sa->port;
59 efsys_mem_t *esmp = &port->mac_stats_dma_mem;
60 uint32_t *genp = NULL;
62 unsigned int nb_attempts = 0;
65 SFC_ASSERT(rte_spinlock_is_locked(&port->mac_stats_lock));
67 if (sa->state != SFC_ADAPTER_STARTED)
71 * If periodic statistics DMA'ing is off or if not supported,
72 * make a manual request and keep an eye on timer if need be
74 if (!port->mac_stats_periodic_dma_supported ||
75 (port->mac_stats_update_period_ms == 0)) {
76 if (port->mac_stats_update_period_ms != 0) {
77 uint64_t timestamp = sfc_get_system_msecs();
80 port->mac_stats_last_request_timestamp) <
81 port->mac_stats_update_period_ms)
84 port->mac_stats_last_request_timestamp = timestamp;
87 rc = efx_mac_stats_upload(sa->nic, esmp);
91 genp = &port->mac_stats_update_generation;
97 rte_delay_us(SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US);
99 rc = efx_mac_stats_update(sa->nic, esmp,
100 port->mac_stats_buf, genp);
104 } while ((genp != NULL) && (*genp == gen_old) &&
105 (++nb_attempts < SFC_MAC_STATS_UPDATE_NB_ATTEMPTS));
111 sfc_port_reset_mac_stats(struct sfc_adapter *sa)
113 struct sfc_port *port = &sa->port;
116 rte_spinlock_lock(&port->mac_stats_lock);
117 rc = efx_mac_stats_clear(sa->nic);
118 rte_spinlock_unlock(&port->mac_stats_lock);
124 sfc_port_init_dev_link(struct sfc_adapter *sa)
126 struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
128 efx_link_mode_t link_mode;
129 struct rte_eth_link current_link;
131 rc = efx_port_poll(sa->nic, &link_mode);
135 sfc_port_link_mode_to_info(link_mode, ¤t_link);
137 EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
138 rte_atomic64_set((rte_atomic64_t *)dev_link,
139 *(uint64_t *)¤t_link);
145 sfc_port_start(struct sfc_adapter *sa)
147 struct sfc_port *port = &sa->port;
149 uint32_t phy_adv_cap;
150 const uint32_t phy_pause_caps =
151 ((1u << EFX_PHY_CAP_PAUSE) | (1u << EFX_PHY_CAP_ASYM));
153 sfc_log_init(sa, "entry");
155 sfc_log_init(sa, "init filters");
156 rc = efx_filter_init(sa->nic);
158 goto fail_filter_init;
160 sfc_log_init(sa, "init port");
161 rc = efx_port_init(sa->nic);
165 sfc_log_init(sa, "set flow control to %#x autoneg=%u",
166 port->flow_ctrl, port->flow_ctrl_autoneg);
167 rc = efx_mac_fcntl_set(sa->nic, port->flow_ctrl,
168 port->flow_ctrl_autoneg);
170 goto fail_mac_fcntl_set;
172 /* Preserve pause capabilities set by above efx_mac_fcntl_set() */
173 efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_CURRENT, &phy_adv_cap);
174 SFC_ASSERT((port->phy_adv_cap & phy_pause_caps) == 0);
175 phy_adv_cap = port->phy_adv_cap | (phy_adv_cap & phy_pause_caps);
177 sfc_log_init(sa, "set phy adv caps to %#x", phy_adv_cap);
178 rc = efx_phy_adv_cap_set(sa->nic, phy_adv_cap);
180 goto fail_phy_adv_cap_set;
182 sfc_log_init(sa, "set MAC PDU %u", (unsigned int)port->pdu);
183 rc = efx_mac_pdu_set(sa->nic, port->pdu);
185 goto fail_mac_pdu_set;
187 sfc_log_init(sa, "set MAC address");
188 rc = efx_mac_addr_set(sa->nic,
189 sa->eth_dev->data->mac_addrs[0].addr_bytes);
191 goto fail_mac_addr_set;
193 sfc_log_init(sa, "set MAC filters");
194 port->promisc = (sa->eth_dev->data->promiscuous != 0) ?
196 port->allmulti = (sa->eth_dev->data->all_multicast != 0) ?
198 rc = sfc_set_rx_mode(sa);
200 goto fail_mac_filter_set;
202 sfc_log_init(sa, "set multicast address list");
203 rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
204 port->nb_mcast_addrs);
206 goto fail_mcast_address_list_set;
208 if (port->mac_stats_reset_pending) {
209 rc = sfc_port_reset_mac_stats(sa);
211 sfc_err(sa, "statistics reset failed (requested "
212 "before the port was started)");
214 port->mac_stats_reset_pending = B_FALSE;
217 efx_mac_stats_get_mask(sa->nic, port->mac_stats_mask,
218 sizeof(port->mac_stats_mask));
220 port->mac_stats_update_generation = 0;
222 if (port->mac_stats_update_period_ms != 0) {
224 * Update MAC stats using periodic DMA;
225 * any positive update interval different from
226 * 1000 ms can be set only on SFN8xxx provided
227 * that FW version is 6.2.1.1033 or higher
229 sfc_log_init(sa, "request MAC stats DMA'ing");
230 rc = efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
231 port->mac_stats_update_period_ms,
234 port->mac_stats_periodic_dma_supported = B_TRUE;
235 } else if (rc == EOPNOTSUPP) {
236 port->mac_stats_periodic_dma_supported = B_FALSE;
237 port->mac_stats_last_request_timestamp = 0;
239 goto fail_mac_stats_periodic;
243 sfc_log_init(sa, "disable MAC drain");
244 rc = efx_mac_drain(sa->nic, B_FALSE);
248 /* Synchronize link status knowledge */
249 rc = sfc_port_init_dev_link(sa);
251 goto fail_port_init_dev_link;
253 sfc_log_init(sa, "done");
256 fail_port_init_dev_link:
257 (void)efx_mac_drain(sa->nic, B_TRUE);
260 (void)efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
263 fail_mac_stats_periodic:
264 fail_mcast_address_list_set:
268 fail_phy_adv_cap_set:
270 efx_port_fini(sa->nic);
273 efx_filter_fini(sa->nic);
276 sfc_log_init(sa, "failed %d", rc);
281 sfc_port_stop(struct sfc_adapter *sa)
283 sfc_log_init(sa, "entry");
285 efx_mac_drain(sa->nic, B_TRUE);
287 (void)efx_mac_stats_periodic(sa->nic, &sa->port.mac_stats_dma_mem,
290 efx_port_fini(sa->nic);
291 efx_filter_fini(sa->nic);
293 sfc_log_init(sa, "done");
297 sfc_port_init(struct sfc_adapter *sa)
299 const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
300 struct sfc_port *port = &sa->port;
301 long kvarg_stats_update_period_ms;
304 sfc_log_init(sa, "entry");
306 /* Enable flow control by default */
307 port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
308 port->flow_ctrl_autoneg = B_TRUE;
310 if (dev_data->dev_conf.rxmode.jumbo_frame)
311 port->pdu = dev_data->dev_conf.rxmode.max_rx_pkt_len;
313 port->pdu = EFX_MAC_PDU(dev_data->mtu);
315 port->max_mcast_addrs = EFX_MAC_MULTICAST_LIST_MAX;
316 port->nb_mcast_addrs = 0;
317 port->mcast_addrs = rte_calloc_socket("mcast_addr_list_buf",
318 port->max_mcast_addrs,
321 if (port->mcast_addrs == NULL) {
323 goto fail_mcast_addr_list_buf_alloc;
326 rte_spinlock_init(&port->mac_stats_lock);
329 port->mac_stats_buf = rte_calloc_socket("mac_stats_buf", EFX_MAC_NSTATS,
332 if (port->mac_stats_buf == NULL)
333 goto fail_mac_stats_buf_alloc;
335 rc = sfc_dma_alloc(sa, "mac_stats", 0, EFX_MAC_STATS_SIZE,
336 sa->socket_id, &port->mac_stats_dma_mem);
338 goto fail_mac_stats_dma_alloc;
340 port->mac_stats_reset_pending = B_FALSE;
342 kvarg_stats_update_period_ms = SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF;
344 rc = sfc_kvargs_process(sa, SFC_KVARG_STATS_UPDATE_PERIOD_MS,
345 sfc_kvarg_long_handler,
346 &kvarg_stats_update_period_ms);
348 ((kvarg_stats_update_period_ms < 0) ||
349 (kvarg_stats_update_period_ms > UINT16_MAX))) {
350 sfc_err(sa, "wrong '" SFC_KVARG_STATS_UPDATE_PERIOD_MS "' "
351 "was set (%ld);", kvarg_stats_update_period_ms);
352 sfc_err(sa, "it must not be less than 0 "
353 "or greater than %" PRIu16, UINT16_MAX);
355 goto fail_kvarg_stats_update_period_ms;
356 } else if (rc != 0) {
357 goto fail_kvarg_stats_update_period_ms;
360 port->mac_stats_update_period_ms = kvarg_stats_update_period_ms;
362 sfc_log_init(sa, "done");
365 fail_kvarg_stats_update_period_ms:
366 fail_mac_stats_dma_alloc:
367 rte_free(port->mac_stats_buf);
368 fail_mac_stats_buf_alloc:
369 fail_mcast_addr_list_buf_alloc:
370 sfc_log_init(sa, "failed %d", rc);
375 sfc_port_fini(struct sfc_adapter *sa)
377 struct sfc_port *port = &sa->port;
379 sfc_log_init(sa, "entry");
381 sfc_dma_free(sa, &port->mac_stats_dma_mem);
382 rte_free(port->mac_stats_buf);
384 sfc_log_init(sa, "done");
388 sfc_set_rx_mode(struct sfc_adapter *sa)
390 struct sfc_port *port = &sa->port;
393 rc = efx_mac_filter_set(sa->nic, port->promisc, B_TRUE,
394 port->promisc || port->allmulti, B_TRUE);
400 sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
401 struct rte_eth_link *link_info)
403 SFC_ASSERT(link_mode < EFX_LINK_NMODES);
405 memset(link_info, 0, sizeof(*link_info));
406 if ((link_mode == EFX_LINK_DOWN) || (link_mode == EFX_LINK_UNKNOWN))
407 link_info->link_status = ETH_LINK_DOWN;
409 link_info->link_status = ETH_LINK_UP;
413 link_info->link_speed = ETH_SPEED_NUM_10M;
414 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
417 link_info->link_speed = ETH_SPEED_NUM_10M;
418 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
420 case EFX_LINK_100HDX:
421 link_info->link_speed = ETH_SPEED_NUM_100M;
422 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
424 case EFX_LINK_100FDX:
425 link_info->link_speed = ETH_SPEED_NUM_100M;
426 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
428 case EFX_LINK_1000HDX:
429 link_info->link_speed = ETH_SPEED_NUM_1G;
430 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
432 case EFX_LINK_1000FDX:
433 link_info->link_speed = ETH_SPEED_NUM_1G;
434 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
436 case EFX_LINK_10000FDX:
437 link_info->link_speed = ETH_SPEED_NUM_10G;
438 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
440 case EFX_LINK_40000FDX:
441 link_info->link_speed = ETH_SPEED_NUM_40G;
442 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
447 case EFX_LINK_UNKNOWN:
449 link_info->link_speed = ETH_SPEED_NUM_NONE;
450 link_info->link_duplex = 0;
454 link_info->link_autoneg = ETH_LINK_AUTONEG;