diff options
author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/net/sfc/sfc_ethdev.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'drivers/net/sfc/sfc_ethdev.c')
-rw-r--r-- | drivers/net/sfc/sfc_ethdev.c | 1642 |
1 files changed, 1642 insertions, 0 deletions
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c new file mode 100644 index 00000000..4c9335f3 --- /dev/null +++ b/drivers/net/sfc/sfc_ethdev.c @@ -0,0 +1,1642 @@ +/*- + * 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 <rte_dev.h> +#include <rte_ethdev.h> +#include <rte_ethdev_pci.h> +#include <rte_pci.h> +#include <rte_errno.h> + +#include "efx.h" + +#include "sfc.h" +#include "sfc_debug.h" +#include "sfc_log.h" +#include "sfc_kvargs.h" +#include "sfc_ev.h" +#include "sfc_rx.h" +#include "sfc_tx.h" +#include "sfc_flow.h" +#include "sfc_dp.h" +#include "sfc_dp_rx.h" + +static struct sfc_dp_list sfc_dp_head = + TAILQ_HEAD_INITIALIZER(sfc_dp_head); + +static int +sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size) +{ + struct sfc_adapter *sa = dev->data->dev_private; + efx_nic_fw_info_t enfi; + int ret; + int rc; + + /* + * Return value of the callback is likely supposed to be + * equal to or greater than 0, nevertheless, if an error + * occurs, it will be desirable to pass it to the caller + */ + if ((fw_version == NULL) || (fw_size == 0)) + return -EINVAL; + + rc = efx_nic_get_fw_version(sa->nic, &enfi); + if (rc != 0) + return -rc; + + ret = snprintf(fw_version, fw_size, + "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16, + enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1], + enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]); + if (ret < 0) + return ret; + + if (enfi.enfi_dpcpu_fw_ids_valid) { + size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret); + int ret_extra; + + ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset, + fw_size - dpcpu_fw_ids_offset, + " rx%" PRIx16 " tx%" PRIx16, + enfi.enfi_rx_dpcpu_fw_id, + enfi.enfi_tx_dpcpu_fw_id); + if (ret_extra < 0) + return ret_extra; + + ret += ret_extra; + } + + if (fw_size < (size_t)(++ret)) + return ret; + else + return 0; +} + +static void +sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) +{ + struct sfc_adapter *sa = dev->data->dev_private; + const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic); + + sfc_log_init(sa, "entry"); + + dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device); + dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX; + + /* Autonegotiation may be disabled */ + dev_info->speed_capa = ETH_LINK_SPEED_FIXED; + if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX) + dev_info->speed_capa |= ETH_LINK_SPEED_1G; + if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX) + dev_info->speed_capa |= ETH_LINK_SPEED_10G; + if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX) + dev_info->speed_capa |= ETH_LINK_SPEED_40G; + + dev_info->max_rx_queues = sa->rxq_max; + dev_info->max_tx_queues = sa->txq_max; + + /* By default packets are dropped if no descriptors are available */ + dev_info->default_rxconf.rx_drop_en = 1; + + dev_info->rx_offload_capa = + DEV_RX_OFFLOAD_IPV4_CKSUM | + DEV_RX_OFFLOAD_UDP_CKSUM | + DEV_RX_OFFLOAD_TCP_CKSUM; + + dev_info->tx_offload_capa = + DEV_TX_OFFLOAD_IPV4_CKSUM | + DEV_TX_OFFLOAD_UDP_CKSUM | + DEV_TX_OFFLOAD_TCP_CKSUM; + + dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP; + if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) || + !encp->enc_hw_tx_insert_vlan_enabled) + dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL; + else + dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT; + + if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG) + dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS; + +#if EFSYS_OPT_RX_SCALE + if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) { + dev_info->reta_size = EFX_RSS_TBL_SIZE; + dev_info->hash_key_size = SFC_RSS_KEY_SIZE; + dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS; + } +#endif + + if (sa->tso) + dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO; + + dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS; + dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS; + /* The RXQ hardware requires that the descriptor count is a power + * of 2, but rx_desc_lim cannot properly describe that constraint. + */ + dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS; + + dev_info->tx_desc_lim.nb_max = sa->txq_max_entries; + dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS; + /* + * The TXQ hardware requires that the descriptor count is a power + * of 2, but tx_desc_lim cannot properly describe that constraint + */ + dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS; +} + +static const uint32_t * +sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + return sa->dp_rx->supported_ptypes_get(); +} + +static int +sfc_dev_configure(struct rte_eth_dev *dev) +{ + struct rte_eth_dev_data *dev_data = dev->data; + struct sfc_adapter *sa = dev_data->dev_private; + int rc; + + sfc_log_init(sa, "entry n_rxq=%u n_txq=%u", + dev_data->nb_rx_queues, dev_data->nb_tx_queues); + + sfc_adapter_lock(sa); + switch (sa->state) { + case SFC_ADAPTER_CONFIGURED: + /* FALLTHROUGH */ + case SFC_ADAPTER_INITIALIZED: + rc = sfc_configure(sa); + break; + default: + sfc_err(sa, "unexpected adapter state %u to configure", + sa->state); + rc = EINVAL; + break; + } + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done %d", rc); + SFC_ASSERT(rc >= 0); + return -rc; +} + +static int +sfc_dev_start(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + rc = sfc_start(sa); + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done %d", rc); + SFC_ASSERT(rc >= 0); + return -rc; +} + +static int +sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct rte_eth_link *dev_link = &dev->data->dev_link; + struct rte_eth_link old_link; + struct rte_eth_link current_link; + + sfc_log_init(sa, "entry"); + +retry: + EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t)); + *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link); + + if (sa->state != SFC_ADAPTER_STARTED) { + sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, ¤t_link); + if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link, + *(uint64_t *)&old_link, + *(uint64_t *)¤t_link)) + goto retry; + } else if (wait_to_complete) { + efx_link_mode_t link_mode; + + if (efx_port_poll(sa->nic, &link_mode) != 0) + link_mode = EFX_LINK_UNKNOWN; + sfc_port_link_mode_to_info(link_mode, ¤t_link); + + if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link, + *(uint64_t *)&old_link, + *(uint64_t *)¤t_link)) + goto retry; + } else { + sfc_ev_mgmt_qpoll(sa); + *(int64_t *)¤t_link = + rte_atomic64_read((rte_atomic64_t *)dev_link); + } + + if (old_link.link_status != current_link.link_status) + sfc_info(sa, "Link status is %s", + current_link.link_status ? "UP" : "DOWN"); + + return old_link.link_status == current_link.link_status ? 0 : -1; +} + +static void +sfc_dev_stop(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + sfc_stop(sa); + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done"); +} + +static int +sfc_dev_set_link_up(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + rc = sfc_start(sa); + sfc_adapter_unlock(sa); + + SFC_ASSERT(rc >= 0); + return -rc; +} + +static int +sfc_dev_set_link_down(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + sfc_stop(sa); + sfc_adapter_unlock(sa); + + return 0; +} + +static void +sfc_dev_close(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + switch (sa->state) { + case SFC_ADAPTER_STARTED: + sfc_stop(sa); + SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED); + /* FALLTHROUGH */ + case SFC_ADAPTER_CONFIGURED: + sfc_close(sa); + SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED); + /* FALLTHROUGH */ + case SFC_ADAPTER_INITIALIZED: + break; + default: + sfc_err(sa, "unexpected adapter state %u on close", sa->state); + break; + } + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done"); +} + +static void +sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode, + boolean_t enabled) +{ + struct sfc_port *port; + boolean_t *toggle; + struct sfc_adapter *sa = dev->data->dev_private; + boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI); + const char *desc = (allmulti) ? "all-multi" : "promiscuous"; + + sfc_adapter_lock(sa); + + port = &sa->port; + toggle = (allmulti) ? (&port->allmulti) : (&port->promisc); + + if (*toggle != enabled) { + *toggle = enabled; + + if ((sa->state == SFC_ADAPTER_STARTED) && + (sfc_set_rx_mode(sa) != 0)) { + *toggle = !(enabled); + sfc_warn(sa, "Failed to %s %s mode", + ((enabled) ? "enable" : "disable"), desc); + } + } + + sfc_adapter_unlock(sa); +} + +static void +sfc_dev_promisc_enable(struct rte_eth_dev *dev) +{ + sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE); +} + +static void +sfc_dev_promisc_disable(struct rte_eth_dev *dev) +{ + sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE); +} + +static void +sfc_dev_allmulti_enable(struct rte_eth_dev *dev) +{ + sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE); +} + +static void +sfc_dev_allmulti_disable(struct rte_eth_dev *dev) +{ + sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE); +} + +static int +sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, + uint16_t nb_rx_desc, unsigned int socket_id, + const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mb_pool) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u", + rx_queue_id, nb_rx_desc, socket_id); + + sfc_adapter_lock(sa); + + rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id, + rx_conf, mb_pool); + if (rc != 0) + goto fail_rx_qinit; + + dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp; + + sfc_adapter_unlock(sa); + + return 0; + +fail_rx_qinit: + sfc_adapter_unlock(sa); + SFC_ASSERT(rc > 0); + return -rc; +} + +static void +sfc_rx_queue_release(void *queue) +{ + struct sfc_dp_rxq *dp_rxq = queue; + struct sfc_rxq *rxq; + struct sfc_adapter *sa; + unsigned int sw_index; + + if (dp_rxq == NULL) + return; + + rxq = sfc_rxq_by_dp_rxq(dp_rxq); + sa = rxq->evq->sa; + sfc_adapter_lock(sa); + + sw_index = sfc_rxq_sw_index(rxq); + + sfc_log_init(sa, "RxQ=%u", sw_index); + + sa->eth_dev->data->rx_queues[sw_index] = NULL; + + sfc_rx_qfini(sa, sw_index); + + sfc_adapter_unlock(sa); +} + +static int +sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, + uint16_t nb_tx_desc, unsigned int socket_id, + const struct rte_eth_txconf *tx_conf) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u", + tx_queue_id, nb_tx_desc, socket_id); + + sfc_adapter_lock(sa); + + rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf); + if (rc != 0) + goto fail_tx_qinit; + + dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp; + + sfc_adapter_unlock(sa); + return 0; + +fail_tx_qinit: + sfc_adapter_unlock(sa); + SFC_ASSERT(rc > 0); + return -rc; +} + +static void +sfc_tx_queue_release(void *queue) +{ + struct sfc_dp_txq *dp_txq = queue; + struct sfc_txq *txq; + unsigned int sw_index; + struct sfc_adapter *sa; + + if (dp_txq == NULL) + return; + + txq = sfc_txq_by_dp_txq(dp_txq); + sw_index = sfc_txq_sw_index(txq); + + SFC_ASSERT(txq->evq != NULL); + sa = txq->evq->sa; + + sfc_log_init(sa, "TxQ = %u", sw_index); + + sfc_adapter_lock(sa); + + SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues); + sa->eth_dev->data->tx_queues[sw_index] = NULL; + + sfc_tx_qfini(sa, sw_index); + + sfc_adapter_unlock(sa); +} + +static void +sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + uint64_t *mac_stats; + + rte_spinlock_lock(&port->mac_stats_lock); + + if (sfc_port_update_mac_stats(sa) != 0) + goto unlock; + + mac_stats = port->mac_stats_buf; + + if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, + EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) { + stats->ipackets = + mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] + + mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] + + mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS]; + stats->opackets = + mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] + + mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] + + mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS]; + stats->ibytes = + mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] + + mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] + + mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES]; + stats->obytes = + mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] + + mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] + + mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES]; + stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW]; + stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS]; + stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS]; + } else { + stats->ipackets = mac_stats[EFX_MAC_RX_PKTS]; + stats->opackets = mac_stats[EFX_MAC_TX_PKTS]; + stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS]; + stats->obytes = mac_stats[EFX_MAC_TX_OCTETS]; + /* + * Take into account stats which are whenever supported + * on EF10. If some stat is not supported by current + * firmware variant or HW revision, it is guaranteed + * to be zero in mac_stats. + */ + stats->imissed = + mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] + + mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] + + mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] + + mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] + + mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] + + mac_stats[EFX_MAC_PM_TRUNC_QBB] + + mac_stats[EFX_MAC_PM_DISCARD_QBB] + + mac_stats[EFX_MAC_PM_DISCARD_MAPPING] + + mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] + + mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS]; + stats->ierrors = + mac_stats[EFX_MAC_RX_FCS_ERRORS] + + mac_stats[EFX_MAC_RX_ALIGN_ERRORS] + + mac_stats[EFX_MAC_RX_JABBER_PKTS]; + /* no oerrors counters supported on EF10 */ + } + +unlock: + rte_spinlock_unlock(&port->mac_stats_lock); +} + +static void +sfc_stats_reset(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + int rc; + + if (sa->state != SFC_ADAPTER_STARTED) { + /* + * The operation cannot be done if port is not started; it + * will be scheduled to be done during the next port start + */ + port->mac_stats_reset_pending = B_TRUE; + return; + } + + rc = sfc_port_reset_mac_stats(sa); + if (rc != 0) + sfc_err(sa, "failed to reset statistics (rc = %d)", rc); +} + +static int +sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats, + unsigned int xstats_count) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + uint64_t *mac_stats; + int rc; + unsigned int i; + int nstats = 0; + + rte_spinlock_lock(&port->mac_stats_lock); + + rc = sfc_port_update_mac_stats(sa); + if (rc != 0) { + SFC_ASSERT(rc > 0); + nstats = -rc; + goto unlock; + } + + mac_stats = port->mac_stats_buf; + + for (i = 0; i < EFX_MAC_NSTATS; ++i) { + if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) { + if (xstats != NULL && nstats < (int)xstats_count) { + xstats[nstats].id = nstats; + xstats[nstats].value = mac_stats[i]; + } + nstats++; + } + } + +unlock: + rte_spinlock_unlock(&port->mac_stats_lock); + + return nstats; +} + +static int +sfc_xstats_get_names(struct rte_eth_dev *dev, + struct rte_eth_xstat_name *xstats_names, + unsigned int xstats_count) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + unsigned int i; + unsigned int nstats = 0; + + for (i = 0; i < EFX_MAC_NSTATS; ++i) { + if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) { + if (xstats_names != NULL && nstats < xstats_count) + strncpy(xstats_names[nstats].name, + efx_mac_stat_name(sa->nic, i), + sizeof(xstats_names[0].name)); + nstats++; + } + } + + return nstats; +} + +static int +sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct sfc_adapter *sa = dev->data->dev_private; + unsigned int wanted_fc, link_fc; + + memset(fc_conf, 0, sizeof(*fc_conf)); + + sfc_adapter_lock(sa); + + if (sa->state == SFC_ADAPTER_STARTED) + efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc); + else + link_fc = sa->port.flow_ctrl; + + switch (link_fc) { + case 0: + fc_conf->mode = RTE_FC_NONE; + break; + case EFX_FCNTL_RESPOND: + fc_conf->mode = RTE_FC_RX_PAUSE; + break; + case EFX_FCNTL_GENERATE: + fc_conf->mode = RTE_FC_TX_PAUSE; + break; + case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE): + fc_conf->mode = RTE_FC_FULL; + break; + default: + sfc_err(sa, "%s: unexpected flow control value %#x", + __func__, link_fc); + } + + fc_conf->autoneg = sa->port.flow_ctrl_autoneg; + + sfc_adapter_unlock(sa); + + return 0; +} + +static int +sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + unsigned int fcntl; + int rc; + + if (fc_conf->high_water != 0 || fc_conf->low_water != 0 || + fc_conf->pause_time != 0 || fc_conf->send_xon != 0 || + fc_conf->mac_ctrl_frame_fwd != 0) { + sfc_err(sa, "unsupported flow control settings specified"); + rc = EINVAL; + goto fail_inval; + } + + switch (fc_conf->mode) { + case RTE_FC_NONE: + fcntl = 0; + break; + case RTE_FC_RX_PAUSE: + fcntl = EFX_FCNTL_RESPOND; + break; + case RTE_FC_TX_PAUSE: + fcntl = EFX_FCNTL_GENERATE; + break; + case RTE_FC_FULL: + fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; + break; + default: + rc = EINVAL; + goto fail_inval; + } + + sfc_adapter_lock(sa); + + if (sa->state == SFC_ADAPTER_STARTED) { + rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg); + if (rc != 0) + goto fail_mac_fcntl_set; + } + + port->flow_ctrl = fcntl; + port->flow_ctrl_autoneg = fc_conf->autoneg; + + sfc_adapter_unlock(sa); + + return 0; + +fail_mac_fcntl_set: + sfc_adapter_unlock(sa); +fail_inval: + SFC_ASSERT(rc > 0); + return -rc; +} + +static int +sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) +{ + struct sfc_adapter *sa = dev->data->dev_private; + size_t pdu = EFX_MAC_PDU(mtu); + size_t old_pdu; + int rc; + + sfc_log_init(sa, "mtu=%u", mtu); + + rc = EINVAL; + if (pdu < EFX_MAC_PDU_MIN) { + sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)", + (unsigned int)mtu, (unsigned int)pdu, + EFX_MAC_PDU_MIN); + goto fail_inval; + } + if (pdu > EFX_MAC_PDU_MAX) { + sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)", + (unsigned int)mtu, (unsigned int)pdu, + EFX_MAC_PDU_MAX); + goto fail_inval; + } + + sfc_adapter_lock(sa); + + if (pdu != sa->port.pdu) { + if (sa->state == SFC_ADAPTER_STARTED) { + sfc_stop(sa); + + old_pdu = sa->port.pdu; + sa->port.pdu = pdu; + rc = sfc_start(sa); + if (rc != 0) + goto fail_start; + } else { + sa->port.pdu = pdu; + } + } + + /* + * The driver does not use it, but other PMDs update jumbo_frame + * flag and max_rx_pkt_len when MTU is set. + */ + dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN); + dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu; + + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done"); + return 0; + +fail_start: + sa->port.pdu = old_pdu; + if (sfc_start(sa) != 0) + sfc_err(sa, "cannot start with neither new (%u) nor old (%u) " + "PDU max size - port is stopped", + (unsigned int)pdu, (unsigned int)old_pdu); + sfc_adapter_unlock(sa); + +fail_inval: + sfc_log_init(sa, "failed %d", rc); + SFC_ASSERT(rc > 0); + return -rc; +} +static void +sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr) +{ + struct sfc_adapter *sa = dev->data->dev_private; + const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic); + int rc; + + sfc_adapter_lock(sa); + + if (sa->state != SFC_ADAPTER_STARTED) { + sfc_info(sa, "the port is not started"); + sfc_info(sa, "the new MAC address will be set on port start"); + + goto unlock; + } + + if (encp->enc_allow_set_mac_with_installed_filters) { + rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes); + if (rc != 0) { + sfc_err(sa, "cannot set MAC address (rc = %u)", rc); + goto unlock; + } + + /* + * Changing the MAC address by means of MCDI request + * has no effect on received traffic, therefore + * we also need to update unicast filters + */ + rc = sfc_set_rx_mode(sa); + if (rc != 0) + sfc_err(sa, "cannot set filter (rc = %u)", rc); + } else { + sfc_warn(sa, "cannot set MAC address with filters installed"); + sfc_warn(sa, "adapter will be restarted to pick the new MAC"); + sfc_warn(sa, "(some traffic may be dropped)"); + + /* + * Since setting MAC address with filters installed is not + * allowed on the adapter, one needs to simply restart adapter + * so that the new MAC address will be taken from an outer + * storage and set flawlessly by means of sfc_start() call + */ + sfc_stop(sa); + rc = sfc_start(sa); + if (rc != 0) + sfc_err(sa, "cannot restart adapter (rc = %u)", rc); + } + +unlock: + sfc_adapter_unlock(sa); +} + + +static int +sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set, + uint32_t nb_mc_addr) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_port *port = &sa->port; + uint8_t *mc_addrs = port->mcast_addrs; + int rc; + unsigned int i; + + if (mc_addrs == NULL) + return -ENOBUFS; + + if (nb_mc_addr > port->max_mcast_addrs) { + sfc_err(sa, "too many multicast addresses: %u > %u", + nb_mc_addr, port->max_mcast_addrs); + return -EINVAL; + } + + for (i = 0; i < nb_mc_addr; ++i) { + (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes, + EFX_MAC_ADDR_LEN); + mc_addrs += EFX_MAC_ADDR_LEN; + } + + port->nb_mcast_addrs = nb_mc_addr; + + if (sa->state != SFC_ADAPTER_STARTED) + return 0; + + rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs, + port->nb_mcast_addrs); + if (rc != 0) + sfc_err(sa, "cannot set multicast address list (rc = %u)", rc); + + SFC_ASSERT(rc > 0); + return -rc; +} + +static void +sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id, + struct rte_eth_rxq_info *qinfo) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_rxq_info *rxq_info; + struct sfc_rxq *rxq; + + sfc_adapter_lock(sa); + + SFC_ASSERT(rx_queue_id < sa->rxq_count); + + rxq_info = &sa->rxq_info[rx_queue_id]; + rxq = rxq_info->rxq; + SFC_ASSERT(rxq != NULL); + + qinfo->mp = rxq->refill_mb_pool; + qinfo->conf.rx_free_thresh = rxq->refill_threshold; + qinfo->conf.rx_drop_en = 1; + qinfo->conf.rx_deferred_start = rxq_info->deferred_start; + qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER); + qinfo->nb_desc = rxq_info->entries; + + sfc_adapter_unlock(sa); +} + +static void +sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id, + struct rte_eth_txq_info *qinfo) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct sfc_txq_info *txq_info; + + sfc_adapter_lock(sa); + + SFC_ASSERT(tx_queue_id < sa->txq_count); + + txq_info = &sa->txq_info[tx_queue_id]; + SFC_ASSERT(txq_info->txq != NULL); + + memset(qinfo, 0, sizeof(*qinfo)); + + qinfo->conf.txq_flags = txq_info->txq->flags; + qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh; + qinfo->conf.tx_deferred_start = txq_info->deferred_start; + qinfo->nb_desc = txq_info->entries; + + sfc_adapter_unlock(sa); +} + +static uint32_t +sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "RxQ=%u", rx_queue_id); + + return sfc_rx_qdesc_npending(sa, rx_queue_id); +} + +static int +sfc_rx_descriptor_done(void *queue, uint16_t offset) +{ + struct sfc_dp_rxq *dp_rxq = queue; + + return sfc_rx_qdesc_done(dp_rxq, offset); +} + +static int +sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "RxQ=%u", rx_queue_id); + + sfc_adapter_lock(sa); + + rc = EINVAL; + if (sa->state != SFC_ADAPTER_STARTED) + goto fail_not_started; + + rc = sfc_rx_qstart(sa, rx_queue_id); + if (rc != 0) + goto fail_rx_qstart; + + sa->rxq_info[rx_queue_id].deferred_started = B_TRUE; + + sfc_adapter_unlock(sa); + + return 0; + +fail_rx_qstart: +fail_not_started: + sfc_adapter_unlock(sa); + SFC_ASSERT(rc > 0); + return -rc; +} + +static int +sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "RxQ=%u", rx_queue_id); + + sfc_adapter_lock(sa); + sfc_rx_qstop(sa, rx_queue_id); + + sa->rxq_info[rx_queue_id].deferred_started = B_FALSE; + + sfc_adapter_unlock(sa); + + return 0; +} + +static int +sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc; + + sfc_log_init(sa, "TxQ = %u", tx_queue_id); + + sfc_adapter_lock(sa); + + rc = EINVAL; + if (sa->state != SFC_ADAPTER_STARTED) + goto fail_not_started; + + rc = sfc_tx_qstart(sa, tx_queue_id); + if (rc != 0) + goto fail_tx_qstart; + + sa->txq_info[tx_queue_id].deferred_started = B_TRUE; + + sfc_adapter_unlock(sa); + return 0; + +fail_tx_qstart: + +fail_not_started: + sfc_adapter_unlock(sa); + SFC_ASSERT(rc > 0); + return -rc; +} + +static int +sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "TxQ = %u", tx_queue_id); + + sfc_adapter_lock(sa); + + sfc_tx_qstop(sa, tx_queue_id); + + sa->txq_info[tx_queue_id].deferred_started = B_FALSE; + + sfc_adapter_unlock(sa); + return 0; +} + +#if EFSYS_OPT_RX_SCALE +static int +sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev, + struct rte_eth_rss_conf *rss_conf) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) + return -ENOTSUP; + + if (sa->rss_channels == 0) + return -EINVAL; + + sfc_adapter_lock(sa); + + /* + * Mapping of hash configuration between RTE and EFX is not one-to-one, + * hence, conversion is done here to derive a correct set of ETH_RSS + * flags which corresponds to the active EFX configuration stored + * locally in 'sfc_adapter' and kept up-to-date + */ + rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types); + rss_conf->rss_key_len = SFC_RSS_KEY_SIZE; + if (rss_conf->rss_key != NULL) + rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE); + + sfc_adapter_unlock(sa); + + return 0; +} + +static int +sfc_dev_rss_hash_update(struct rte_eth_dev *dev, + struct rte_eth_rss_conf *rss_conf) +{ + struct sfc_adapter *sa = dev->data->dev_private; + unsigned int efx_hash_types; + int rc = 0; + + if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) { + sfc_err(sa, "RSS is not available"); + return -ENOTSUP; + } + + if (sa->rss_channels == 0) { + sfc_err(sa, "RSS is not configured"); + return -EINVAL; + } + + if ((rss_conf->rss_key != NULL) && + (rss_conf->rss_key_len != sizeof(sa->rss_key))) { + sfc_err(sa, "RSS key size is wrong (should be %lu)", + sizeof(sa->rss_key)); + return -EINVAL; + } + + if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) { + sfc_err(sa, "unsupported hash functions requested"); + return -EINVAL; + } + + sfc_adapter_lock(sa); + + efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf); + + rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ, + efx_hash_types, B_TRUE); + if (rc != 0) + goto fail_scale_mode_set; + + if (rss_conf->rss_key != NULL) { + if (sa->state == SFC_ADAPTER_STARTED) { + rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key, + sizeof(sa->rss_key)); + if (rc != 0) + goto fail_scale_key_set; + } + + rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key)); + } + + sa->rss_hash_types = efx_hash_types; + + sfc_adapter_unlock(sa); + + return 0; + +fail_scale_key_set: + if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ, + sa->rss_hash_types, B_TRUE) != 0) + sfc_err(sa, "failed to restore RSS mode"); + +fail_scale_mode_set: + sfc_adapter_unlock(sa); + return -rc; +} + +static int +sfc_dev_rss_reta_query(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int entry; + + if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) + return -ENOTSUP; + + if (sa->rss_channels == 0) + return -EINVAL; + + if (reta_size != EFX_RSS_TBL_SIZE) + return -EINVAL; + + sfc_adapter_lock(sa); + + for (entry = 0; entry < reta_size; entry++) { + int grp = entry / RTE_RETA_GROUP_SIZE; + int grp_idx = entry % RTE_RETA_GROUP_SIZE; + + if ((reta_conf[grp].mask >> grp_idx) & 1) + reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry]; + } + + sfc_adapter_unlock(sa); + + return 0; +} + +static int +sfc_dev_rss_reta_update(struct rte_eth_dev *dev, + struct rte_eth_rss_reta_entry64 *reta_conf, + uint16_t reta_size) +{ + struct sfc_adapter *sa = dev->data->dev_private; + unsigned int *rss_tbl_new; + uint16_t entry; + int rc; + + + if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) { + sfc_err(sa, "RSS is not available"); + return -ENOTSUP; + } + + if (sa->rss_channels == 0) { + sfc_err(sa, "RSS is not configured"); + return -EINVAL; + } + + if (reta_size != EFX_RSS_TBL_SIZE) { + sfc_err(sa, "RETA size is wrong (should be %u)", + EFX_RSS_TBL_SIZE); + return -EINVAL; + } + + rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0); + if (rss_tbl_new == NULL) + return -ENOMEM; + + sfc_adapter_lock(sa); + + rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl)); + + for (entry = 0; entry < reta_size; entry++) { + int grp_idx = entry % RTE_RETA_GROUP_SIZE; + struct rte_eth_rss_reta_entry64 *grp; + + grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE]; + + if (grp->mask & (1ull << grp_idx)) { + if (grp->reta[grp_idx] >= sa->rss_channels) { + rc = EINVAL; + goto bad_reta_entry; + } + rss_tbl_new[entry] = grp->reta[grp_idx]; + } + } + + rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE); + if (rc == 0) + rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl)); + +bad_reta_entry: + sfc_adapter_unlock(sa); + + rte_free(rss_tbl_new); + + SFC_ASSERT(rc >= 0); + return -rc; +} +#endif + +static int +sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type, + enum rte_filter_op filter_op, + void *arg) +{ + struct sfc_adapter *sa = dev->data->dev_private; + int rc = ENOTSUP; + + sfc_log_init(sa, "entry"); + + switch (filter_type) { + case RTE_ETH_FILTER_NONE: + sfc_err(sa, "Global filters configuration not supported"); + break; + case RTE_ETH_FILTER_MACVLAN: + sfc_err(sa, "MACVLAN filters not supported"); + break; + case RTE_ETH_FILTER_ETHERTYPE: + sfc_err(sa, "EtherType filters not supported"); + break; + case RTE_ETH_FILTER_FLEXIBLE: + sfc_err(sa, "Flexible filters not supported"); + break; + case RTE_ETH_FILTER_SYN: + sfc_err(sa, "SYN filters not supported"); + break; + case RTE_ETH_FILTER_NTUPLE: + sfc_err(sa, "NTUPLE filters not supported"); + break; + case RTE_ETH_FILTER_TUNNEL: + sfc_err(sa, "Tunnel filters not supported"); + break; + case RTE_ETH_FILTER_FDIR: + sfc_err(sa, "Flow Director filters not supported"); + break; + case RTE_ETH_FILTER_HASH: + sfc_err(sa, "Hash filters not supported"); + break; + case RTE_ETH_FILTER_GENERIC: + if (filter_op != RTE_ETH_FILTER_GET) { + rc = EINVAL; + } else { + *(const void **)arg = &sfc_flow_ops; + rc = 0; + } + break; + default: + sfc_err(sa, "Unknown filter type %u", filter_type); + break; + } + + sfc_log_init(sa, "exit: %d", -rc); + SFC_ASSERT(rc >= 0); + return -rc; +} + +static const struct eth_dev_ops sfc_eth_dev_ops = { + .dev_configure = sfc_dev_configure, + .dev_start = sfc_dev_start, + .dev_stop = sfc_dev_stop, + .dev_set_link_up = sfc_dev_set_link_up, + .dev_set_link_down = sfc_dev_set_link_down, + .dev_close = sfc_dev_close, + .promiscuous_enable = sfc_dev_promisc_enable, + .promiscuous_disable = sfc_dev_promisc_disable, + .allmulticast_enable = sfc_dev_allmulti_enable, + .allmulticast_disable = sfc_dev_allmulti_disable, + .link_update = sfc_dev_link_update, + .stats_get = sfc_stats_get, + .stats_reset = sfc_stats_reset, + .xstats_get = sfc_xstats_get, + .xstats_reset = sfc_stats_reset, + .xstats_get_names = sfc_xstats_get_names, + .dev_infos_get = sfc_dev_infos_get, + .dev_supported_ptypes_get = sfc_dev_supported_ptypes_get, + .mtu_set = sfc_dev_set_mtu, + .rx_queue_start = sfc_rx_queue_start, + .rx_queue_stop = sfc_rx_queue_stop, + .tx_queue_start = sfc_tx_queue_start, + .tx_queue_stop = sfc_tx_queue_stop, + .rx_queue_setup = sfc_rx_queue_setup, + .rx_queue_release = sfc_rx_queue_release, + .rx_queue_count = sfc_rx_queue_count, + .rx_descriptor_done = sfc_rx_descriptor_done, + .tx_queue_setup = sfc_tx_queue_setup, + .tx_queue_release = sfc_tx_queue_release, + .flow_ctrl_get = sfc_flow_ctrl_get, + .flow_ctrl_set = sfc_flow_ctrl_set, + .mac_addr_set = sfc_mac_addr_set, +#if EFSYS_OPT_RX_SCALE + .reta_update = sfc_dev_rss_reta_update, + .reta_query = sfc_dev_rss_reta_query, + .rss_hash_update = sfc_dev_rss_hash_update, + .rss_hash_conf_get = sfc_dev_rss_hash_conf_get, +#endif + .filter_ctrl = sfc_dev_filter_ctrl, + .set_mc_addr_list = sfc_set_mc_addr_list, + .rxq_info_get = sfc_rx_queue_info_get, + .txq_info_get = sfc_tx_queue_info_get, + .fw_version_get = sfc_fw_version_get, +}; + +static int +sfc_eth_dev_set_ops(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + unsigned int avail_caps = 0; + const char *rx_name = NULL; + const char *tx_name = NULL; + int rc; + + switch (sa->family) { + case EFX_FAMILY_HUNTINGTON: + case EFX_FAMILY_MEDFORD: + avail_caps |= SFC_DP_HW_FW_CAP_EF10; + break; + default: + break; + } + + rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH, + sfc_kvarg_string_handler, &rx_name); + if (rc != 0) + goto fail_kvarg_rx_datapath; + + if (rx_name != NULL) { + sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name); + if (sa->dp_rx == NULL) { + sfc_err(sa, "Rx datapath %s not found", rx_name); + rc = ENOENT; + goto fail_dp_rx; + } + if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) { + sfc_err(sa, + "Insufficient Hw/FW capabilities to use Rx datapath %s", + rx_name); + rc = EINVAL; + goto fail_dp_rx; + } + } else { + sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps); + if (sa->dp_rx == NULL) { + sfc_err(sa, "Rx datapath by caps %#x not found", + avail_caps); + rc = ENOENT; + goto fail_dp_rx; + } + } + + sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name); + + dev->rx_pkt_burst = sa->dp_rx->pkt_burst; + + rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH, + sfc_kvarg_string_handler, &tx_name); + if (rc != 0) + goto fail_kvarg_tx_datapath; + + if (tx_name != NULL) { + sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name); + if (sa->dp_tx == NULL) { + sfc_err(sa, "Tx datapath %s not found", tx_name); + rc = ENOENT; + goto fail_dp_tx; + } + if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) { + sfc_err(sa, + "Insufficient Hw/FW capabilities to use Tx datapath %s", + tx_name); + rc = EINVAL; + goto fail_dp_tx; + } + } else { + sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps); + if (sa->dp_tx == NULL) { + sfc_err(sa, "Tx datapath by caps %#x not found", + avail_caps); + rc = ENOENT; + goto fail_dp_tx; + } + } + + sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name); + + dev->tx_pkt_burst = sa->dp_tx->pkt_burst; + + dev->dev_ops = &sfc_eth_dev_ops; + + return 0; + +fail_dp_tx: +fail_kvarg_tx_datapath: +fail_dp_rx: +fail_kvarg_rx_datapath: + return rc; +} + +static void +sfc_register_dp(void) +{ + /* Register once */ + if (TAILQ_EMPTY(&sfc_dp_head)) { + /* Prefer EF10 datapath */ + sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp); + sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp); + + sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp); + sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp); + sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp); + } +} + +static int +sfc_eth_dev_init(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev); + int rc; + const efx_nic_cfg_t *encp; + const struct ether_addr *from; + + sfc_register_dp(); + + /* Required for logging */ + sa->eth_dev = dev; + + /* Copy PCI device info to the dev->data */ + rte_eth_copy_pci_info(dev, pci_dev); + + rc = sfc_kvargs_parse(sa); + if (rc != 0) + goto fail_kvargs_parse; + + rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT, + sfc_kvarg_bool_handler, &sa->debug_init); + if (rc != 0) + goto fail_kvarg_debug_init; + + sfc_log_init(sa, "entry"); + + dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0); + if (dev->data->mac_addrs == NULL) { + rc = ENOMEM; + goto fail_mac_addrs; + } + + sfc_adapter_lock_init(sa); + sfc_adapter_lock(sa); + + sfc_log_init(sa, "probing"); + rc = sfc_probe(sa); + if (rc != 0) + goto fail_probe; + + sfc_log_init(sa, "set device ops"); + rc = sfc_eth_dev_set_ops(dev); + if (rc != 0) + goto fail_set_ops; + + sfc_log_init(sa, "attaching"); + rc = sfc_attach(sa); + if (rc != 0) + goto fail_attach; + + encp = efx_nic_cfg_get(sa->nic); + + /* + * The arguments are really reverse order in comparison to + * Linux kernel. Copy from NIC config to Ethernet device data. + */ + from = (const struct ether_addr *)(encp->enc_mac_addr); + ether_addr_copy(from, &dev->data->mac_addrs[0]); + + sfc_adapter_unlock(sa); + + sfc_log_init(sa, "done"); + return 0; + +fail_attach: +fail_set_ops: + sfc_unprobe(sa); + +fail_probe: + sfc_adapter_unlock(sa); + sfc_adapter_lock_fini(sa); + rte_free(dev->data->mac_addrs); + dev->data->mac_addrs = NULL; + +fail_mac_addrs: +fail_kvarg_debug_init: + sfc_kvargs_cleanup(sa); + +fail_kvargs_parse: + sfc_log_init(sa, "failed %d", rc); + SFC_ASSERT(rc > 0); + return -rc; +} + +static int +sfc_eth_dev_uninit(struct rte_eth_dev *dev) +{ + struct sfc_adapter *sa = dev->data->dev_private; + + sfc_log_init(sa, "entry"); + + sfc_adapter_lock(sa); + + sfc_detach(sa); + sfc_unprobe(sa); + + rte_free(dev->data->mac_addrs); + dev->data->mac_addrs = NULL; + + dev->dev_ops = NULL; + dev->rx_pkt_burst = NULL; + dev->tx_pkt_burst = NULL; + + sfc_kvargs_cleanup(sa); + + sfc_adapter_unlock(sa); + sfc_adapter_lock_fini(sa); + + sfc_log_init(sa, "done"); + + /* Required for logging, so cleanup last */ + sa->eth_dev = NULL; + return 0; +} + +static const struct rte_pci_id pci_id_sfc_efx_map[] = { + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) }, + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) }, + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) }, + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) }, + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) }, + { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) }, + { .vendor_id = 0 /* sentinel */ } +}; + +static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + return rte_eth_dev_pci_generic_probe(pci_dev, + sizeof(struct sfc_adapter), sfc_eth_dev_init); +} + +static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev) +{ + return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit); +} + +static struct rte_pci_driver sfc_efx_pmd = { + .id_table = pci_id_sfc_efx_map, + .drv_flags = + RTE_PCI_DRV_INTR_LSC | + RTE_PCI_DRV_NEED_MAPPING, + .probe = sfc_eth_dev_pci_probe, + .remove = sfc_eth_dev_pci_remove, +}; + +RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd); +RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map); +RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio"); +RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx, + SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " " + SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " " + SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " " + SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> " + SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " " + SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL); |