4 * Copyright (c) 2016-2017 Solarflare Communications Inc.
7 * This software was jointly developed between OKTET Labs (under contract
8 * for Solarflare) and Solarflare Communications, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #include "sfc_kvargs.h"
38 /** Default MAC statistics update period is 1 second */
39 #define SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF MS_PER_S
41 /** The number of microseconds to sleep on attempt to get statistics update */
42 #define SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US 10
44 /** The number of attempts to await arrival of freshly generated statistics */
45 #define SFC_MAC_STATS_UPDATE_NB_ATTEMPTS 50
48 * Update MAC statistics in the buffer.
54 * @retval EAGAIN Try again
55 * @retval ENOMEM Memory allocation failure
58 sfc_port_update_mac_stats(struct sfc_adapter *sa)
60 struct sfc_port *port = &sa->port;
61 efsys_mem_t *esmp = &port->mac_stats_dma_mem;
62 uint32_t *genp = NULL;
64 unsigned int nb_attempts = 0;
67 SFC_ASSERT(rte_spinlock_is_locked(&port->mac_stats_lock));
69 if (sa->state != SFC_ADAPTER_STARTED)
73 * If periodic statistics DMA'ing is off or if not supported,
74 * make a manual request and keep an eye on timer if need be
76 if (!port->mac_stats_periodic_dma_supported ||
77 (port->mac_stats_update_period_ms == 0)) {
78 if (port->mac_stats_update_period_ms != 0) {
79 uint64_t timestamp = sfc_get_system_msecs();
82 port->mac_stats_last_request_timestamp) <
83 port->mac_stats_update_period_ms)
86 port->mac_stats_last_request_timestamp = timestamp;
89 rc = efx_mac_stats_upload(sa->nic, esmp);
93 genp = &port->mac_stats_update_generation;
99 rte_delay_us(SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US);
101 rc = efx_mac_stats_update(sa->nic, esmp,
102 port->mac_stats_buf, genp);
106 } while ((genp != NULL) && (*genp == gen_old) &&
107 (++nb_attempts < SFC_MAC_STATS_UPDATE_NB_ATTEMPTS));
113 sfc_port_reset_mac_stats(struct sfc_adapter *sa)
115 struct sfc_port *port = &sa->port;
118 rte_spinlock_lock(&port->mac_stats_lock);
119 rc = efx_mac_stats_clear(sa->nic);
120 rte_spinlock_unlock(&port->mac_stats_lock);
126 sfc_port_init_dev_link(struct sfc_adapter *sa)
128 struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
130 efx_link_mode_t link_mode;
131 struct rte_eth_link current_link;
133 rc = efx_port_poll(sa->nic, &link_mode);
137 sfc_port_link_mode_to_info(link_mode, ¤t_link);
139 EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
140 rte_atomic64_set((rte_atomic64_t *)dev_link,
141 *(uint64_t *)¤t_link);
147 sfc_port_start(struct sfc_adapter *sa)
149 struct sfc_port *port = &sa->port;
151 uint32_t phy_adv_cap;
152 const uint32_t phy_pause_caps =
153 ((1u << EFX_PHY_CAP_PAUSE) | (1u << EFX_PHY_CAP_ASYM));
155 sfc_log_init(sa, "entry");
157 sfc_log_init(sa, "init filters");
158 rc = efx_filter_init(sa->nic);
160 goto fail_filter_init;
162 sfc_log_init(sa, "init port");
163 rc = efx_port_init(sa->nic);
167 sfc_log_init(sa, "set flow control to %#x autoneg=%u",
168 port->flow_ctrl, port->flow_ctrl_autoneg);
169 rc = efx_mac_fcntl_set(sa->nic, port->flow_ctrl,
170 port->flow_ctrl_autoneg);
172 goto fail_mac_fcntl_set;
174 /* Preserve pause capabilities set by above efx_mac_fcntl_set() */
175 efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_CURRENT, &phy_adv_cap);
176 SFC_ASSERT((port->phy_adv_cap & phy_pause_caps) == 0);
177 phy_adv_cap = port->phy_adv_cap | (phy_adv_cap & phy_pause_caps);
179 sfc_log_init(sa, "set phy adv caps to %#x", phy_adv_cap);
180 rc = efx_phy_adv_cap_set(sa->nic, phy_adv_cap);
182 goto fail_phy_adv_cap_set;
184 sfc_log_init(sa, "set MAC PDU %u", (unsigned int)port->pdu);
185 rc = efx_mac_pdu_set(sa->nic, port->pdu);
187 goto fail_mac_pdu_set;
189 sfc_log_init(sa, "set MAC address");
190 rc = efx_mac_addr_set(sa->nic,
191 sa->eth_dev->data->mac_addrs[0].addr_bytes);
193 goto fail_mac_addr_set;
195 sfc_log_init(sa, "set MAC filters");
196 port->promisc = (sa->eth_dev->data->promiscuous != 0) ?
198 port->allmulti = (sa->eth_dev->data->all_multicast != 0) ?
200 rc = sfc_set_rx_mode(sa);
202 goto fail_mac_filter_set;
204 sfc_log_init(sa, "set multicast address list");
205 rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
206 port->nb_mcast_addrs);
208 goto fail_mcast_address_list_set;
210 if (port->mac_stats_reset_pending) {
211 rc = sfc_port_reset_mac_stats(sa);
213 sfc_err(sa, "statistics reset failed (requested "
214 "before the port was started)");
216 port->mac_stats_reset_pending = B_FALSE;
219 efx_mac_stats_get_mask(sa->nic, port->mac_stats_mask,
220 sizeof(port->mac_stats_mask));
222 port->mac_stats_update_generation = 0;
224 if (port->mac_stats_update_period_ms != 0) {
226 * Update MAC stats using periodic DMA;
227 * any positive update interval different from
228 * 1000 ms can be set only on SFN8xxx provided
229 * that FW version is 6.2.1.1033 or higher
231 sfc_log_init(sa, "request MAC stats DMA'ing");
232 rc = efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
233 port->mac_stats_update_period_ms,
236 port->mac_stats_periodic_dma_supported = B_TRUE;
237 } else if (rc == EOPNOTSUPP) {
238 port->mac_stats_periodic_dma_supported = B_FALSE;
239 port->mac_stats_last_request_timestamp = 0;
241 goto fail_mac_stats_periodic;
245 sfc_log_init(sa, "disable MAC drain");
246 rc = efx_mac_drain(sa->nic, B_FALSE);
250 /* Synchronize link status knowledge */
251 rc = sfc_port_init_dev_link(sa);
253 goto fail_port_init_dev_link;
255 sfc_log_init(sa, "done");
258 fail_port_init_dev_link:
259 (void)efx_mac_drain(sa->nic, B_TRUE);
262 (void)efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
265 fail_mac_stats_periodic:
266 fail_mcast_address_list_set:
270 fail_phy_adv_cap_set:
272 efx_port_fini(sa->nic);
275 efx_filter_fini(sa->nic);
278 sfc_log_init(sa, "failed %d", rc);
283 sfc_port_stop(struct sfc_adapter *sa)
285 sfc_log_init(sa, "entry");
287 efx_mac_drain(sa->nic, B_TRUE);
289 (void)efx_mac_stats_periodic(sa->nic, &sa->port.mac_stats_dma_mem,
292 efx_port_fini(sa->nic);
293 efx_filter_fini(sa->nic);
295 sfc_log_init(sa, "done");
299 sfc_port_init(struct sfc_adapter *sa)
301 const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
302 struct sfc_port *port = &sa->port;
303 long kvarg_stats_update_period_ms;
306 sfc_log_init(sa, "entry");
308 /* Enable flow control by default */
309 port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
310 port->flow_ctrl_autoneg = B_TRUE;
312 if (dev_data->dev_conf.rxmode.jumbo_frame)
313 port->pdu = dev_data->dev_conf.rxmode.max_rx_pkt_len;
315 port->pdu = EFX_MAC_PDU(dev_data->mtu);
317 port->max_mcast_addrs = EFX_MAC_MULTICAST_LIST_MAX;
318 port->nb_mcast_addrs = 0;
319 port->mcast_addrs = rte_calloc_socket("mcast_addr_list_buf",
320 port->max_mcast_addrs,
323 if (port->mcast_addrs == NULL) {
325 goto fail_mcast_addr_list_buf_alloc;
328 rte_spinlock_init(&port->mac_stats_lock);
331 port->mac_stats_buf = rte_calloc_socket("mac_stats_buf", EFX_MAC_NSTATS,
334 if (port->mac_stats_buf == NULL)
335 goto fail_mac_stats_buf_alloc;
337 rc = sfc_dma_alloc(sa, "mac_stats", 0, EFX_MAC_STATS_SIZE,
338 sa->socket_id, &port->mac_stats_dma_mem);
340 goto fail_mac_stats_dma_alloc;
342 port->mac_stats_reset_pending = B_FALSE;
344 kvarg_stats_update_period_ms = SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF;
346 rc = sfc_kvargs_process(sa, SFC_KVARG_STATS_UPDATE_PERIOD_MS,
347 sfc_kvarg_long_handler,
348 &kvarg_stats_update_period_ms);
350 ((kvarg_stats_update_period_ms < 0) ||
351 (kvarg_stats_update_period_ms > UINT16_MAX))) {
352 sfc_err(sa, "wrong '" SFC_KVARG_STATS_UPDATE_PERIOD_MS "' "
353 "was set (%ld);", kvarg_stats_update_period_ms);
354 sfc_err(sa, "it must not be less than 0 "
355 "or greater than %" PRIu16, UINT16_MAX);
357 goto fail_kvarg_stats_update_period_ms;
358 } else if (rc != 0) {
359 goto fail_kvarg_stats_update_period_ms;
362 port->mac_stats_update_period_ms = kvarg_stats_update_period_ms;
364 sfc_log_init(sa, "done");
367 fail_kvarg_stats_update_period_ms:
368 fail_mac_stats_dma_alloc:
369 rte_free(port->mac_stats_buf);
370 fail_mac_stats_buf_alloc:
371 fail_mcast_addr_list_buf_alloc:
372 sfc_log_init(sa, "failed %d", rc);
377 sfc_port_fini(struct sfc_adapter *sa)
379 struct sfc_port *port = &sa->port;
381 sfc_log_init(sa, "entry");
383 sfc_dma_free(sa, &port->mac_stats_dma_mem);
384 rte_free(port->mac_stats_buf);
386 sfc_log_init(sa, "done");
390 sfc_set_rx_mode(struct sfc_adapter *sa)
392 struct sfc_port *port = &sa->port;
395 rc = efx_mac_filter_set(sa->nic, port->promisc, B_TRUE,
396 port->promisc || port->allmulti, B_TRUE);
402 sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
403 struct rte_eth_link *link_info)
405 SFC_ASSERT(link_mode < EFX_LINK_NMODES);
407 memset(link_info, 0, sizeof(*link_info));
408 if ((link_mode == EFX_LINK_DOWN) || (link_mode == EFX_LINK_UNKNOWN))
409 link_info->link_status = ETH_LINK_DOWN;
411 link_info->link_status = ETH_LINK_UP;
415 link_info->link_speed = ETH_SPEED_NUM_10M;
416 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
419 link_info->link_speed = ETH_SPEED_NUM_10M;
420 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
422 case EFX_LINK_100HDX:
423 link_info->link_speed = ETH_SPEED_NUM_100M;
424 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
426 case EFX_LINK_100FDX:
427 link_info->link_speed = ETH_SPEED_NUM_100M;
428 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
430 case EFX_LINK_1000HDX:
431 link_info->link_speed = ETH_SPEED_NUM_1G;
432 link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
434 case EFX_LINK_1000FDX:
435 link_info->link_speed = ETH_SPEED_NUM_1G;
436 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
438 case EFX_LINK_10000FDX:
439 link_info->link_speed = ETH_SPEED_NUM_10G;
440 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
442 case EFX_LINK_40000FDX:
443 link_info->link_speed = ETH_SPEED_NUM_40G;
444 link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
449 case EFX_LINK_UNKNOWN:
451 link_info->link_speed = ETH_SPEED_NUM_NONE;
452 link_info->link_duplex = 0;
456 link_info->link_autoneg = ETH_LINK_AUTONEG;