--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "efx.h"
+
+#include "sfc.h"
+#include "sfc_log.h"
+#include "sfc_kvargs.h"
+
+/** Default MAC statistics update period is 1 second */
+#define SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF MS_PER_S
+
+/** The number of microseconds to sleep on attempt to get statistics update */
+#define SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US 10
+
+/** The number of attempts to await arrival of freshly generated statistics */
+#define SFC_MAC_STATS_UPDATE_NB_ATTEMPTS 50
+
+/**
+ * Update MAC statistics in the buffer.
+ *
+ * @param sa Adapter
+ *
+ * @return Status code
+ * @retval 0 Success
+ * @retval EAGAIN Try again
+ * @retval ENOMEM Memory allocation failure
+ */
+int
+sfc_port_update_mac_stats(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ efsys_mem_t *esmp = &port->mac_stats_dma_mem;
+ uint32_t *genp = NULL;
+ uint32_t gen_old;
+ unsigned int nb_attempts = 0;
+ int rc;
+
+ SFC_ASSERT(rte_spinlock_is_locked(&port->mac_stats_lock));
+
+ if (sa->state != SFC_ADAPTER_STARTED)
+ return EINVAL;
+
+ /*
+ * If periodic statistics DMA'ing is off or if not supported,
+ * make a manual request and keep an eye on timer if need be
+ */
+ if (!port->mac_stats_periodic_dma_supported ||
+ (port->mac_stats_update_period_ms == 0)) {
+ if (port->mac_stats_update_period_ms != 0) {
+ uint64_t timestamp = sfc_get_system_msecs();
+
+ if ((timestamp -
+ port->mac_stats_last_request_timestamp) <
+ port->mac_stats_update_period_ms)
+ return 0;
+
+ port->mac_stats_last_request_timestamp = timestamp;
+ }
+
+ rc = efx_mac_stats_upload(sa->nic, esmp);
+ if (rc != 0)
+ return rc;
+
+ genp = &port->mac_stats_update_generation;
+ gen_old = *genp;
+ }
+
+ do {
+ if (nb_attempts > 0)
+ rte_delay_us(SFC_MAC_STATS_UPDATE_RETRY_INTERVAL_US);
+
+ rc = efx_mac_stats_update(sa->nic, esmp,
+ port->mac_stats_buf, genp);
+ if (rc != 0)
+ return rc;
+
+ } while ((genp != NULL) && (*genp == gen_old) &&
+ (++nb_attempts < SFC_MAC_STATS_UPDATE_NB_ATTEMPTS));
+
+ return 0;
+}
+
+int
+sfc_port_reset_mac_stats(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ rte_spinlock_lock(&port->mac_stats_lock);
+ rc = efx_mac_stats_clear(sa->nic);
+ rte_spinlock_unlock(&port->mac_stats_lock);
+
+ return rc;
+}
+
+static int
+sfc_port_init_dev_link(struct sfc_adapter *sa)
+{
+ struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
+ int rc;
+ efx_link_mode_t link_mode;
+ struct rte_eth_link current_link;
+
+ rc = efx_port_poll(sa->nic, &link_mode);
+ if (rc != 0)
+ return rc;
+
+ sfc_port_link_mode_to_info(link_mode, ¤t_link);
+
+ EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
+ rte_atomic64_set((rte_atomic64_t *)dev_link,
+ *(uint64_t *)¤t_link);
+
+ return 0;
+}
+
+int
+sfc_port_start(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ int rc;
+ uint32_t phy_adv_cap;
+ const uint32_t phy_pause_caps =
+ ((1u << EFX_PHY_CAP_PAUSE) | (1u << EFX_PHY_CAP_ASYM));
+
+ sfc_log_init(sa, "entry");
+
+ sfc_log_init(sa, "init filters");
+ rc = efx_filter_init(sa->nic);
+ if (rc != 0)
+ goto fail_filter_init;
+
+ sfc_log_init(sa, "init port");
+ rc = efx_port_init(sa->nic);
+ if (rc != 0)
+ goto fail_port_init;
+
+ sfc_log_init(sa, "set flow control to %#x autoneg=%u",
+ port->flow_ctrl, port->flow_ctrl_autoneg);
+ rc = efx_mac_fcntl_set(sa->nic, port->flow_ctrl,
+ port->flow_ctrl_autoneg);
+ if (rc != 0)
+ goto fail_mac_fcntl_set;
+
+ /* Preserve pause capabilities set by above efx_mac_fcntl_set() */
+ efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_CURRENT, &phy_adv_cap);
+ SFC_ASSERT((port->phy_adv_cap & phy_pause_caps) == 0);
+ phy_adv_cap = port->phy_adv_cap | (phy_adv_cap & phy_pause_caps);
+
+ sfc_log_init(sa, "set phy adv caps to %#x", phy_adv_cap);
+ rc = efx_phy_adv_cap_set(sa->nic, phy_adv_cap);
+ if (rc != 0)
+ goto fail_phy_adv_cap_set;
+
+ sfc_log_init(sa, "set MAC PDU %u", (unsigned int)port->pdu);
+ rc = efx_mac_pdu_set(sa->nic, port->pdu);
+ if (rc != 0)
+ goto fail_mac_pdu_set;
+
+ sfc_log_init(sa, "set MAC address");
+ rc = efx_mac_addr_set(sa->nic,
+ sa->eth_dev->data->mac_addrs[0].addr_bytes);
+ if (rc != 0)
+ goto fail_mac_addr_set;
+
+ sfc_log_init(sa, "set MAC filters");
+ port->promisc = (sa->eth_dev->data->promiscuous != 0) ?
+ B_TRUE : B_FALSE;
+ port->allmulti = (sa->eth_dev->data->all_multicast != 0) ?
+ B_TRUE : B_FALSE;
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ goto fail_mac_filter_set;
+
+ sfc_log_init(sa, "set multicast address list");
+ rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
+ port->nb_mcast_addrs);
+ if (rc != 0)
+ goto fail_mcast_address_list_set;
+
+ if (port->mac_stats_reset_pending) {
+ rc = sfc_port_reset_mac_stats(sa);
+ if (rc != 0)
+ sfc_err(sa, "statistics reset failed (requested "
+ "before the port was started)");
+
+ port->mac_stats_reset_pending = B_FALSE;
+ }
+
+ efx_mac_stats_get_mask(sa->nic, port->mac_stats_mask,
+ sizeof(port->mac_stats_mask));
+
+ port->mac_stats_update_generation = 0;
+
+ if (port->mac_stats_update_period_ms != 0) {
+ /*
+ * Update MAC stats using periodic DMA;
+ * any positive update interval different from
+ * 1000 ms can be set only on SFN8xxx provided
+ * that FW version is 6.2.1.1033 or higher
+ */
+ sfc_log_init(sa, "request MAC stats DMA'ing");
+ rc = efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
+ port->mac_stats_update_period_ms,
+ B_FALSE);
+ if (rc == 0) {
+ port->mac_stats_periodic_dma_supported = B_TRUE;
+ } else if (rc == EOPNOTSUPP) {
+ port->mac_stats_periodic_dma_supported = B_FALSE;
+ port->mac_stats_last_request_timestamp = 0;
+ } else {
+ goto fail_mac_stats_periodic;
+ }
+ }
+
+ sfc_log_init(sa, "disable MAC drain");
+ rc = efx_mac_drain(sa->nic, B_FALSE);
+ if (rc != 0)
+ goto fail_mac_drain;
+
+ /* Synchronize link status knowledge */
+ rc = sfc_port_init_dev_link(sa);
+ if (rc != 0)
+ goto fail_port_init_dev_link;
+
+ sfc_log_init(sa, "done");
+ return 0;
+
+fail_port_init_dev_link:
+ (void)efx_mac_drain(sa->nic, B_TRUE);
+
+fail_mac_drain:
+ (void)efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem,
+ 0, B_FALSE);
+
+fail_mac_stats_periodic:
+fail_mcast_address_list_set:
+fail_mac_filter_set:
+fail_mac_addr_set:
+fail_mac_pdu_set:
+fail_phy_adv_cap_set:
+fail_mac_fcntl_set:
+ efx_port_fini(sa->nic);
+
+fail_port_init:
+ efx_filter_fini(sa->nic);
+
+fail_filter_init:
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_port_stop(struct sfc_adapter *sa)
+{
+ sfc_log_init(sa, "entry");
+
+ efx_mac_drain(sa->nic, B_TRUE);
+
+ (void)efx_mac_stats_periodic(sa->nic, &sa->port.mac_stats_dma_mem,
+ 0, B_FALSE);
+
+ efx_port_fini(sa->nic);
+ efx_filter_fini(sa->nic);
+
+ sfc_log_init(sa, "done");
+}
+
+int
+sfc_port_configure(struct sfc_adapter *sa)
+{
+ const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
+ struct sfc_port *port = &sa->port;
+
+ sfc_log_init(sa, "entry");
+
+ if (dev_data->dev_conf.rxmode.jumbo_frame)
+ port->pdu = dev_data->dev_conf.rxmode.max_rx_pkt_len;
+ else
+ port->pdu = EFX_MAC_PDU(dev_data->mtu);
+
+ return 0;
+}
+
+void
+sfc_port_close(struct sfc_adapter *sa)
+{
+ sfc_log_init(sa, "entry");
+}
+
+int
+sfc_port_attach(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ long kvarg_stats_update_period_ms;
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ efx_phy_adv_cap_get(sa->nic, EFX_PHY_CAP_PERM, &port->phy_adv_cap_mask);
+
+ /* Enable flow control by default */
+ port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
+ port->flow_ctrl_autoneg = B_TRUE;
+
+ port->max_mcast_addrs = EFX_MAC_MULTICAST_LIST_MAX;
+ port->nb_mcast_addrs = 0;
+ port->mcast_addrs = rte_calloc_socket("mcast_addr_list_buf",
+ port->max_mcast_addrs,
+ EFX_MAC_ADDR_LEN, 0,
+ sa->socket_id);
+ if (port->mcast_addrs == NULL) {
+ rc = ENOMEM;
+ goto fail_mcast_addr_list_buf_alloc;
+ }
+
+ rte_spinlock_init(&port->mac_stats_lock);
+
+ rc = ENOMEM;
+ port->mac_stats_buf = rte_calloc_socket("mac_stats_buf", EFX_MAC_NSTATS,
+ sizeof(uint64_t), 0,
+ sa->socket_id);
+ if (port->mac_stats_buf == NULL)
+ goto fail_mac_stats_buf_alloc;
+
+ rc = sfc_dma_alloc(sa, "mac_stats", 0, EFX_MAC_STATS_SIZE,
+ sa->socket_id, &port->mac_stats_dma_mem);
+ if (rc != 0)
+ goto fail_mac_stats_dma_alloc;
+
+ port->mac_stats_reset_pending = B_FALSE;
+
+ kvarg_stats_update_period_ms = SFC_MAC_STATS_UPDATE_PERIOD_MS_DEF;
+
+ rc = sfc_kvargs_process(sa, SFC_KVARG_STATS_UPDATE_PERIOD_MS,
+ sfc_kvarg_long_handler,
+ &kvarg_stats_update_period_ms);
+ if ((rc == 0) &&
+ ((kvarg_stats_update_period_ms < 0) ||
+ (kvarg_stats_update_period_ms > UINT16_MAX))) {
+ sfc_err(sa, "wrong '" SFC_KVARG_STATS_UPDATE_PERIOD_MS "' "
+ "was set (%ld);", kvarg_stats_update_period_ms);
+ sfc_err(sa, "it must not be less than 0 "
+ "or greater than %" PRIu16, UINT16_MAX);
+ rc = EINVAL;
+ goto fail_kvarg_stats_update_period_ms;
+ } else if (rc != 0) {
+ goto fail_kvarg_stats_update_period_ms;
+ }
+
+ port->mac_stats_update_period_ms = kvarg_stats_update_period_ms;
+
+ sfc_log_init(sa, "done");
+ return 0;
+
+fail_kvarg_stats_update_period_ms:
+fail_mac_stats_dma_alloc:
+ rte_free(port->mac_stats_buf);
+fail_mac_stats_buf_alloc:
+fail_mcast_addr_list_buf_alloc:
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_port_detach(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+
+ sfc_log_init(sa, "entry");
+
+ sfc_dma_free(sa, &port->mac_stats_dma_mem);
+ rte_free(port->mac_stats_buf);
+
+ sfc_log_init(sa, "done");
+}
+
+int
+sfc_set_rx_mode(struct sfc_adapter *sa)
+{
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ rc = efx_mac_filter_set(sa->nic, port->promisc, B_TRUE,
+ port->promisc || port->allmulti, B_TRUE);
+
+ return rc;
+}
+
+void
+sfc_port_link_mode_to_info(efx_link_mode_t link_mode,
+ struct rte_eth_link *link_info)
+{
+ SFC_ASSERT(link_mode < EFX_LINK_NMODES);
+
+ memset(link_info, 0, sizeof(*link_info));
+ if ((link_mode == EFX_LINK_DOWN) || (link_mode == EFX_LINK_UNKNOWN))
+ link_info->link_status = ETH_LINK_DOWN;
+ else
+ link_info->link_status = ETH_LINK_UP;
+
+ switch (link_mode) {
+ case EFX_LINK_10HDX:
+ link_info->link_speed = ETH_SPEED_NUM_10M;
+ link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
+ break;
+ case EFX_LINK_10FDX:
+ link_info->link_speed = ETH_SPEED_NUM_10M;
+ link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
+ break;
+ case EFX_LINK_100HDX:
+ link_info->link_speed = ETH_SPEED_NUM_100M;
+ link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
+ break;
+ case EFX_LINK_100FDX:
+ link_info->link_speed = ETH_SPEED_NUM_100M;
+ link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
+ break;
+ case EFX_LINK_1000HDX:
+ link_info->link_speed = ETH_SPEED_NUM_1G;
+ link_info->link_duplex = ETH_LINK_HALF_DUPLEX;
+ break;
+ case EFX_LINK_1000FDX:
+ link_info->link_speed = ETH_SPEED_NUM_1G;
+ link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
+ break;
+ case EFX_LINK_10000FDX:
+ link_info->link_speed = ETH_SPEED_NUM_10G;
+ link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
+ break;
+ case EFX_LINK_40000FDX:
+ link_info->link_speed = ETH_SPEED_NUM_40G;
+ link_info->link_duplex = ETH_LINK_FULL_DUPLEX;
+ break;
+ default:
+ SFC_ASSERT(B_FALSE);
+ /* FALLTHROUGH */
+ case EFX_LINK_UNKNOWN:
+ case EFX_LINK_DOWN:
+ link_info->link_speed = ETH_SPEED_NUM_NONE;
+ link_info->link_duplex = 0;
+ break;
+ }
+
+ link_info->link_autoneg = ETH_LINK_AUTONEG;
+}
Code Review / deb_dpdk.git / blobdiff