New upstream version 18.02
[deb_dpdk.git] / drivers / net / sfc / sfc_ethdev.c
index 2f5f86f..89a4529 100644 (file)
@@ -1,36 +1,14 @@
-/*-
- *   BSD LICENSE
+/* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * Copyright (c) 2016-2018 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_driver.h>
 #include <rte_ethdev_pci.h>
 #include <rte_pci.h>
 #include <rte_bus_pci.h>
@@ -105,6 +83,7 @@ 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);
+       uint64_t txq_offloads_def = 0;
 
        sfc_log_init(sa, "entry");
 
@@ -126,22 +105,35 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        /* 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->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
+
+       /*
+        * rx_offload_capa includes both device and queue offloads since
+        * the latter may be requested on a per device basis which makes
+        * sense when some offloads are needed to be set on all queues.
+        */
+       dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
+                                   dev_info->rx_queue_offload_capa;
+
+       dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
+
+       /*
+        * tx_offload_capa includes both device and queue offloads since
+        * the latter may be requested on a per device basis which makes
+        * sense when some offloads are needed to be set on all queues.
+        */
+       dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
+                                   dev_info->tx_queue_offload_capa;
 
-       dev_info->tx_offload_capa =
-               DEV_TX_OFFLOAD_IPV4_CKSUM |
-               DEV_TX_OFFLOAD_UDP_CKSUM |
-               DEV_TX_OFFLOAD_TCP_CKSUM;
+       if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+               txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+
+       dev_info->default_txconf.offloads |= txq_offloads_def;
 
        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;
@@ -160,9 +152,7 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        }
 #endif
 
-       if (sa->tso)
-               dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
-
+       /* Initialize to hardware limits */
        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
@@ -170,6 +160,7 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
         */
        dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 
+       /* Initialize to hardware limits */
        dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
        dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
        /*
@@ -177,14 +168,21 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
         * of 2, but tx_desc_lim cannot properly describe that constraint
         */
        dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
+
+       if (sa->dp_rx->get_dev_info != NULL)
+               sa->dp_rx->get_dev_info(dev_info);
+       if (sa->dp_tx->get_dev_info != NULL)
+               sa->dp_tx->get_dev_info(dev_info);
 }
 
 static const uint32_t *
 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 {
        struct sfc_adapter *sa = dev->data->dev_private;
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+       uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 
-       return sa->dp_rx->supported_ptypes_get();
+       return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 }
 
 static int
@@ -895,7 +893,13 @@ sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
         * 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);
+       if (mtu > ETHER_MAX_LEN) {
+               struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+
+               rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
+               rxmode->jumbo_frame = 1;
+       }
+
        dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 
        sfc_adapter_unlock(sa);
@@ -926,6 +930,12 @@ sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 
        sfc_adapter_lock(sa);
 
+       /*
+        * Copy the address to the device private data so that
+        * it could be recalled in the case of adapter restart.
+        */
+       ether_addr_copy(mac_addr, &port->default_mac_addr);
+
        if (port->isolated) {
                sfc_err(sa, "isolated mode is active on the port");
                sfc_err(sa, "will not set MAC address");
@@ -961,9 +971,9 @@ sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 
                /*
                 * 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
+                * allowed on the adapter, the new MAC address will be set
+                * by means of adapter restart. sfc_start() shall retrieve
+                * the new address from the device private data and set it.
                 */
                sfc_stop(sa);
                rc = sfc_start(sa);
@@ -972,6 +982,13 @@ sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
        }
 
 unlock:
+       /*
+        * In the case of failure sa->port->default_mac_addr does not
+        * need rollback since no error code is returned, and the upper
+        * API will anyway update the external MAC address storage.
+        * To be consistent with that new value it is better to keep
+        * the device private value the same.
+        */
        sfc_adapter_unlock(sa);
 }
 
@@ -1045,7 +1062,13 @@ sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
        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->conf.offloads = DEV_RX_OFFLOAD_IPV4_CKSUM |
+                              DEV_RX_OFFLOAD_UDP_CKSUM |
+                              DEV_RX_OFFLOAD_TCP_CKSUM;
+       if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
+               qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
+               qinfo->scattered_rx = 1;
+       }
        qinfo->nb_desc = rxq_info->entries;
 
        sfc_adapter_unlock(sa);
@@ -1072,6 +1095,7 @@ sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
        memset(qinfo, 0, sizeof(*qinfo));
 
        qinfo->conf.txq_flags = txq_info->txq->flags;
+       qinfo->conf.offloads = txq_info->txq->offloads;
        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;
@@ -1211,6 +1235,123 @@ sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
        return 0;
 }
 
+static efx_tunnel_protocol_t
+sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
+{
+       switch (rte_type) {
+       case RTE_TUNNEL_TYPE_VXLAN:
+               return EFX_TUNNEL_PROTOCOL_VXLAN;
+       case RTE_TUNNEL_TYPE_GENEVE:
+               return EFX_TUNNEL_PROTOCOL_GENEVE;
+       default:
+               return EFX_TUNNEL_NPROTOS;
+       }
+}
+
+enum sfc_udp_tunnel_op_e {
+       SFC_UDP_TUNNEL_ADD_PORT,
+       SFC_UDP_TUNNEL_DEL_PORT,
+};
+
+static int
+sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
+                     struct rte_eth_udp_tunnel *tunnel_udp,
+                     enum sfc_udp_tunnel_op_e op)
+{
+       struct sfc_adapter *sa = dev->data->dev_private;
+       efx_tunnel_protocol_t tunnel_proto;
+       int rc;
+
+       sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
+                    (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
+                    (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
+                    tunnel_udp->udp_port, tunnel_udp->prot_type);
+
+       tunnel_proto =
+               sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
+       if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
+               rc = ENOTSUP;
+               goto fail_bad_proto;
+       }
+
+       sfc_adapter_lock(sa);
+
+       switch (op) {
+       case SFC_UDP_TUNNEL_ADD_PORT:
+               rc = efx_tunnel_config_udp_add(sa->nic,
+                                              tunnel_udp->udp_port,
+                                              tunnel_proto);
+               break;
+       case SFC_UDP_TUNNEL_DEL_PORT:
+               rc = efx_tunnel_config_udp_remove(sa->nic,
+                                                 tunnel_udp->udp_port,
+                                                 tunnel_proto);
+               break;
+       default:
+               rc = EINVAL;
+               goto fail_bad_op;
+       }
+
+       if (rc != 0)
+               goto fail_op;
+
+       if (sa->state == SFC_ADAPTER_STARTED) {
+               rc = efx_tunnel_reconfigure(sa->nic);
+               if (rc == EAGAIN) {
+                       /*
+                        * Configuration is accepted by FW and MC reboot
+                        * is initiated to apply the changes. MC reboot
+                        * will be handled in a usual way (MC reboot
+                        * event on management event queue and adapter
+                        * restart).
+                        */
+                       rc = 0;
+               } else if (rc != 0) {
+                       goto fail_reconfigure;
+               }
+       }
+
+       sfc_adapter_unlock(sa);
+       return 0;
+
+fail_reconfigure:
+       /* Remove/restore entry since the change makes the trouble */
+       switch (op) {
+       case SFC_UDP_TUNNEL_ADD_PORT:
+               (void)efx_tunnel_config_udp_remove(sa->nic,
+                                                  tunnel_udp->udp_port,
+                                                  tunnel_proto);
+               break;
+       case SFC_UDP_TUNNEL_DEL_PORT:
+               (void)efx_tunnel_config_udp_add(sa->nic,
+                                               tunnel_udp->udp_port,
+                                               tunnel_proto);
+               break;
+       }
+
+fail_op:
+fail_bad_op:
+       sfc_adapter_unlock(sa);
+
+fail_bad_proto:
+       SFC_ASSERT(rc > 0);
+       return -rc;
+}
+
+static int
+sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
+                           struct rte_eth_udp_tunnel *tunnel_udp)
+{
+       return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
+}
+
+static int
+sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
+                           struct rte_eth_udp_tunnel *tunnel_udp)
+{
+       return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
+}
+
 #if EFSYS_OPT_RX_SCALE
 static int
 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
@@ -1515,6 +1656,8 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
        .flow_ctrl_get                  = sfc_flow_ctrl_get,
        .flow_ctrl_set                  = sfc_flow_ctrl_set,
        .mac_addr_set                   = sfc_mac_addr_set,
+       .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
+       .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
 #if EFSYS_OPT_RX_SCALE
        .reta_update                    = sfc_dev_rss_reta_update,
        .reta_query                     = sfc_dev_rss_reta_query,