net/sfc: get RxQ pending descriptors count
[dpdk.git] / drivers / net / sfc / sfc_ethdev.c
index e1125e4..ad6f813 100644 (file)
@@ -52,12 +52,26 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        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 |
@@ -82,6 +96,24 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 }
 
+static const uint32_t *
+sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
+{
+       static const uint32_t ptypes[] = {
+               RTE_PTYPE_L2_ETHER,
+               RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
+               RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
+               RTE_PTYPE_L4_TCP,
+               RTE_PTYPE_L4_UDP,
+               RTE_PTYPE_UNKNOWN
+       };
+
+       if (dev->rx_pkt_burst == sfc_recv_pkts)
+               return ptypes;
+
+       return NULL;
+}
+
 static int
 sfc_dev_configure(struct rte_eth_dev *dev)
 {
@@ -185,6 +217,36 @@ sfc_dev_stop(struct rte_eth_dev *dev)
        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)
 {
@@ -213,6 +275,59 @@ sfc_dev_close(struct rte_eth_dev *dev)
        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,
@@ -452,20 +567,321 @@ sfc_xstats_get_names(struct rte_eth_dev *dev,
        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;
+       uint8_t *mc_addrs_p;
+       uint8_t *mc_addrs;
+       int rc;
+       unsigned int i;
+
+       if (nb_mc_addr > EFX_MAC_MULTICAST_LIST_MAX) {
+               sfc_err(sa, "too many multicast addresses: %u > %u",
+                        nb_mc_addr, EFX_MAC_MULTICAST_LIST_MAX);
+               return -EINVAL;
+       }
+
+       mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr, EFX_MAC_ADDR_LEN, 0);
+       if (mc_addrs_p == NULL)
+               return -ENOMEM;
+
+       mc_addrs = mc_addrs_p;
+
+       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;
+       }
+
+       rc = efx_mac_multicast_list_set(sa->nic, mc_addrs_p, nb_mc_addr);
+
+       rte_free(mc_addrs_p);
+
+       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->nb_desc = rxq_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 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,
        .xstats_get                     = sfc_xstats_get,
        .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_setup                 = sfc_rx_queue_setup,
        .rx_queue_release               = sfc_rx_queue_release,
+       .rx_queue_count                 = sfc_rx_queue_count,
        .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,
+       .set_mc_addr_list               = sfc_set_mc_addr_list,
+       .rxq_info_get                   = sfc_rx_queue_info_get,
 };
 
 static int
@@ -583,6 +999,7 @@ static struct eth_driver sfc_efx_pmd = {
        .pci_drv = {
                .id_table = pci_id_sfc_efx_map,
                .drv_flags =
+                       RTE_PCI_DRV_INTR_LSC |
                        RTE_PCI_DRV_NEED_MAPPING,
                .probe = rte_eth_dev_pci_probe,
                .remove = rte_eth_dev_pci_remove,