ethdev: add speed capabilities
[dpdk.git] / drivers / net / mlx5 / mlx5_ethdev.c
index 1159fa3..d7a0eea 100644 (file)
@@ -59,6 +59,7 @@
 #include <rte_common.h>
 #include <rte_interrupts.h>
 #include <rte_alarm.h>
+#include <rte_malloc.h>
 #ifdef PEDANTIC
 #pragma GCC diagnostic error "-pedantic"
 #endif
 #include "mlx5_rxtx.h"
 #include "mlx5_utils.h"
 
+/**
+ * Return private structure associated with an Ethernet device.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   Pointer to private structure.
+ */
+struct priv *
+mlx5_get_priv(struct rte_eth_dev *dev)
+{
+       struct mlx5_secondary_data *sd;
+
+       if (!mlx5_is_secondary())
+               return dev->data->dev_private;
+       sd = &mlx5_secondary_data[dev->data->port_id];
+       return sd->data.dev_private;
+}
+
+/**
+ * Check if running as a secondary process.
+ *
+ * @return
+ *   Nonzero if running as a secondary process.
+ */
+inline int
+mlx5_is_secondary(void)
+{
+       return rte_eal_process_type() != RTE_PROC_PRIMARY;
+}
+
 /**
  * Get interface name from private structure.
  *
@@ -414,6 +447,7 @@ dev_configure(struct rte_eth_dev *dev)
        unsigned int j;
        unsigned int reta_idx_n;
 
+       priv->rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
        priv->rxqs = (void *)dev->data->rx_queues;
        priv->txqs = (void *)dev->data->tx_queues;
        if (txqs_n != priv->txqs_n) {
@@ -464,6 +498,9 @@ mlx5_dev_configure(struct rte_eth_dev *dev)
        struct priv *priv = dev->data->dev_private;
        int ret;
 
+       if (mlx5_is_secondary())
+               return -E_RTE_SECONDARY;
+
        priv_lock(priv);
        ret = dev_configure(dev);
        assert(ret >= 0);
@@ -482,7 +519,7 @@ mlx5_dev_configure(struct rte_eth_dev *dev)
 void
 mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct priv *priv = mlx5_get_priv(dev);
        unsigned int max;
        char ifname[IF_NAMESIZE];
 
@@ -501,20 +538,19 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
                max = 65535;
        info->max_rx_queues = max;
        info->max_tx_queues = max;
-       /* Last array entry is reserved for broadcast. */
-       info->max_mac_addrs = (RTE_DIM(priv->mac) - 1);
+       info->max_mac_addrs = RTE_DIM(priv->mac);
        info->rx_offload_capa =
                (priv->hw_csum ?
                 (DEV_RX_OFFLOAD_IPV4_CKSUM |
                  DEV_RX_OFFLOAD_UDP_CKSUM |
                  DEV_RX_OFFLOAD_TCP_CKSUM) :
                 0);
-       info->tx_offload_capa =
-               (priv->hw_csum ?
-                (DEV_TX_OFFLOAD_IPV4_CKSUM |
-                 DEV_TX_OFFLOAD_UDP_CKSUM |
-                 DEV_TX_OFFLOAD_TCP_CKSUM) :
-                0);
+       info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT;
+       if (priv->hw_csum)
+               info->tx_offload_capa |=
+                       (DEV_TX_OFFLOAD_IPV4_CKSUM |
+                        DEV_TX_OFFLOAD_UDP_CKSUM |
+                        DEV_TX_OFFLOAD_TCP_CKSUM);
        if (priv_get_ifname(priv, &ifname) == 0)
                info->if_index = if_nametoindex(ifname);
        /* FIXME: RETA update/query API expects the callee to know the size of
@@ -523,9 +559,36 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
         * size if it is not fixed.
         * The API should be updated to solve this problem. */
        info->reta_size = priv->ind_table_max_size;
+       info->speed_capa =
+                       ETH_LINK_SPEED_1G |
+                       ETH_LINK_SPEED_10G |
+                       ETH_LINK_SPEED_20G |
+                       ETH_LINK_SPEED_25G |
+                       ETH_LINK_SPEED_40G |
+                       ETH_LINK_SPEED_50G |
+                       ETH_LINK_SPEED_56G;
        priv_unlock(priv);
 }
 
+const uint32_t *
+mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev)
+{
+       static const uint32_t ptypes[] = {
+               /* refers to rxq_cq_to_pkt_type() */
+               RTE_PTYPE_L3_IPV4,
+               RTE_PTYPE_L3_IPV6,
+               RTE_PTYPE_INNER_L3_IPV4,
+               RTE_PTYPE_INNER_L3_IPV6,
+               RTE_PTYPE_UNKNOWN
+
+       };
+
+       if (dev->rx_pkt_burst == mlx5_rx_burst ||
+           dev->rx_pkt_burst == mlx5_rx_burst_sp)
+               return ptypes;
+       return NULL;
+}
+
 /**
  * DPDK callback to retrieve physical link information (unlocked version).
  *
@@ -537,7 +600,7 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
 static int
 mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct priv *priv = mlx5_get_priv(dev);
        struct ethtool_cmd edata = {
                .cmd = ETHTOOL_GSET
        };
@@ -586,7 +649,7 @@ mlx5_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete)
 int
 mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct priv *priv = mlx5_get_priv(dev);
        int ret;
 
        priv_lock(priv);
@@ -621,6 +684,9 @@ mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
        uint16_t (*rx_func)(void *, struct rte_mbuf **, uint16_t) =
                mlx5_rx_burst;
 
+       if (mlx5_is_secondary())
+               return -E_RTE_SECONDARY;
+
        priv_lock(priv);
        /* Set kernel interface MTU first. */
        if (priv_set_mtu(priv, mtu)) {
@@ -695,6 +761,9 @@ mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
        };
        int ret;
 
+       if (mlx5_is_secondary())
+               return -E_RTE_SECONDARY;
+
        ifr.ifr_data = &ethpause;
        priv_lock(priv);
        if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
@@ -743,6 +812,9 @@ mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
        };
        int ret;
 
+       if (mlx5_is_secondary())
+               return -E_RTE_SECONDARY;
+
        ifr.ifr_data = &ethpause;
        ethpause.autoneg = fc_conf->autoneg;
        if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
@@ -969,3 +1041,239 @@ priv_dev_interrupt_handler_install(struct priv *priv, struct rte_eth_dev *dev)
                                           dev);
        }
 }
+
+/**
+ * Change the link state (UP / DOWN).
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ * @param up
+ *   Nonzero for link up, otherwise link down.
+ *
+ * @return
+ *   0 on success, errno value on failure.
+ */
+static int
+priv_set_link(struct priv *priv, int up)
+{
+       struct rte_eth_dev *dev = priv->dev;
+       int err;
+       unsigned int i;
+
+       if (up) {
+               err = priv_set_flags(priv, ~IFF_UP, IFF_UP);
+               if (err)
+                       return err;
+               for (i = 0; i < priv->rxqs_n; i++)
+                       if ((*priv->rxqs)[i]->sp)
+                               break;
+               /* Check if an sp queue exists.
+                * Note: Some old frames might be received.
+                */
+               if (i == priv->rxqs_n)
+                       dev->rx_pkt_burst = mlx5_rx_burst;
+               else
+                       dev->rx_pkt_burst = mlx5_rx_burst_sp;
+               dev->tx_pkt_burst = mlx5_tx_burst;
+       } else {
+               err = priv_set_flags(priv, ~IFF_UP, ~IFF_UP);
+               if (err)
+                       return err;
+               dev->rx_pkt_burst = removed_rx_burst;
+               dev->tx_pkt_burst = removed_tx_burst;
+       }
+       return 0;
+}
+
+/**
+ * DPDK callback to bring the link DOWN.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, errno value on failure.
+ */
+int
+mlx5_set_link_down(struct rte_eth_dev *dev)
+{
+       struct priv *priv = dev->data->dev_private;
+       int err;
+
+       priv_lock(priv);
+       err = priv_set_link(priv, 0);
+       priv_unlock(priv);
+       return err;
+}
+
+/**
+ * DPDK callback to bring the link UP.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, errno value on failure.
+ */
+int
+mlx5_set_link_up(struct rte_eth_dev *dev)
+{
+       struct priv *priv = dev->data->dev_private;
+       int err;
+
+       priv_lock(priv);
+       err = priv_set_link(priv, 1);
+       priv_unlock(priv);
+       return err;
+}
+
+/**
+ * Configure secondary process queues from a private data pointer (primary
+ * or secondary) and update burst callbacks. Can take place only once.
+ *
+ * All queues must have been previously created by the primary process to
+ * avoid undefined behavior.
+ *
+ * @param priv
+ *   Private data pointer from either primary or secondary process.
+ *
+ * @return
+ *   Private data pointer from secondary process, NULL in case of error.
+ */
+struct priv *
+mlx5_secondary_data_setup(struct priv *priv)
+{
+       unsigned int port_id = 0;
+       struct mlx5_secondary_data *sd;
+       void **tx_queues;
+       void **rx_queues;
+       unsigned int nb_tx_queues;
+       unsigned int nb_rx_queues;
+       unsigned int i;
+
+       /* priv must be valid at this point. */
+       assert(priv != NULL);
+       /* priv->dev must also be valid but may point to local memory from
+        * another process, possibly with the same address and must not
+        * be dereferenced yet. */
+       assert(priv->dev != NULL);
+       /* Determine port ID by finding out where priv comes from. */
+       while (1) {
+               sd = &mlx5_secondary_data[port_id];
+               rte_spinlock_lock(&sd->lock);
+               /* Primary process? */
+               if (sd->primary_priv == priv)
+                       break;
+               /* Secondary process? */
+               if (sd->data.dev_private == priv)
+                       break;
+               rte_spinlock_unlock(&sd->lock);
+               if (++port_id == RTE_DIM(mlx5_secondary_data))
+                       port_id = 0;
+       }
+       /* Switch to secondary private structure. If private data has already
+        * been updated by another thread, there is nothing else to do. */
+       priv = sd->data.dev_private;
+       if (priv->dev->data == &sd->data)
+               goto end;
+       /* Sanity checks. Secondary private structure is supposed to point
+        * to local eth_dev, itself still pointing to the shared device data
+        * structure allocated by the primary process. */
+       assert(sd->shared_dev_data != &sd->data);
+       assert(sd->data.nb_tx_queues == 0);
+       assert(sd->data.tx_queues == NULL);
+       assert(sd->data.nb_rx_queues == 0);
+       assert(sd->data.rx_queues == NULL);
+       assert(priv != sd->primary_priv);
+       assert(priv->dev->data == sd->shared_dev_data);
+       assert(priv->txqs_n == 0);
+       assert(priv->txqs == NULL);
+       assert(priv->rxqs_n == 0);
+       assert(priv->rxqs == NULL);
+       nb_tx_queues = sd->shared_dev_data->nb_tx_queues;
+       nb_rx_queues = sd->shared_dev_data->nb_rx_queues;
+       /* Allocate local storage for queues. */
+       tx_queues = rte_zmalloc("secondary ethdev->tx_queues",
+                               sizeof(sd->data.tx_queues[0]) * nb_tx_queues,
+                               RTE_CACHE_LINE_SIZE);
+       rx_queues = rte_zmalloc("secondary ethdev->rx_queues",
+                               sizeof(sd->data.rx_queues[0]) * nb_rx_queues,
+                               RTE_CACHE_LINE_SIZE);
+       if (tx_queues == NULL || rx_queues == NULL)
+               goto error;
+       /* Lock to prevent control operations during setup. */
+       priv_lock(priv);
+       /* TX queues. */
+       for (i = 0; i != nb_tx_queues; ++i) {
+               struct txq *primary_txq = (*sd->primary_priv->txqs)[i];
+               struct txq *txq;
+
+               if (primary_txq == NULL)
+                       continue;
+               txq = rte_calloc_socket("TXQ", 1, sizeof(*txq), 0,
+                                       primary_txq->socket);
+               if (txq != NULL) {
+                       if (txq_setup(priv->dev,
+                                     txq,
+                                     primary_txq->elts_n * MLX5_PMD_SGE_WR_N,
+                                     primary_txq->socket,
+                                     NULL) == 0) {
+                               txq->stats.idx = primary_txq->stats.idx;
+                               tx_queues[i] = txq;
+                               continue;
+                       }
+                       rte_free(txq);
+               }
+               while (i) {
+                       txq = tx_queues[--i];
+                       txq_cleanup(txq);
+                       rte_free(txq);
+               }
+               goto error;
+       }
+       /* RX queues. */
+       for (i = 0; i != nb_rx_queues; ++i) {
+               struct rxq *primary_rxq = (*sd->primary_priv->rxqs)[i];
+
+               if (primary_rxq == NULL)
+                       continue;
+               /* Not supported yet. */
+               rx_queues[i] = NULL;
+       }
+       /* Update everything. */
+       priv->txqs = (void *)tx_queues;
+       priv->txqs_n = nb_tx_queues;
+       priv->rxqs = (void *)rx_queues;
+       priv->rxqs_n = nb_rx_queues;
+       sd->data.rx_queues = rx_queues;
+       sd->data.tx_queues = tx_queues;
+       sd->data.nb_rx_queues = nb_rx_queues;
+       sd->data.nb_tx_queues = nb_tx_queues;
+       sd->data.dev_link = sd->shared_dev_data->dev_link;
+       sd->data.mtu = sd->shared_dev_data->mtu;
+       memcpy(sd->data.rx_queue_state, sd->shared_dev_data->rx_queue_state,
+              sizeof(sd->data.rx_queue_state));
+       memcpy(sd->data.tx_queue_state, sd->shared_dev_data->tx_queue_state,
+              sizeof(sd->data.tx_queue_state));
+       sd->data.dev_flags = sd->shared_dev_data->dev_flags;
+       /* Use local data from now on. */
+       rte_mb();
+       priv->dev->data = &sd->data;
+       rte_mb();
+       priv->dev->tx_pkt_burst = mlx5_tx_burst;
+       priv->dev->rx_pkt_burst = removed_rx_burst;
+       priv_unlock(priv);
+end:
+       /* More sanity checks. */
+       assert(priv->dev->tx_pkt_burst == mlx5_tx_burst);
+       assert(priv->dev->rx_pkt_burst == removed_rx_burst);
+       assert(priv->dev->data == &sd->data);
+       rte_spinlock_unlock(&sd->lock);
+       return priv;
+error:
+       priv_unlock(priv);
+       rte_free(tx_queues);
+       rte_free(rx_queues);
+       rte_spinlock_unlock(&sd->lock);
+       return NULL;
+}