ethdev: add speed capabilities

The speed capabilities of a device can be retrieved with
rte_eth_dev_info_get().

The new field speed_capa is initialized in the drivers without
taking care of device characteristics in this patch.
When the capabilities of a driver are accurate, the table in
overview.rst must be filled.

Signed-off-by: Marc Sune <marcdevel@gmail.com>

diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst
index 542479a..62f1868 100644 (file)
--- a/doc/guides/nics/overview.rst
+++ b/doc/guides/nics/overview.rst
@@ -86,6 +86,7 @@ Most of these differences are summarized below.
                                           e   e       e   e   e                     e
                                           c   c       c   c   c                     c
    ==================== = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
+   speed capabilities
    link status                  X       X X                                   X X
    link status event                    X X                                     X
    queue status event                                                           X

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index e6cc34d..8e565ab 100644 (file)
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -47,6 +47,11 @@ This section should contain new features added in this release. Sample format:
   A new function ``rte_pktmbuf_alloc_bulk()`` has been added to allow the user
   to allocate a bulk of mbufs.
 
+* **Added device link speed capabilities.**
+
+  The structure ``rte_eth_dev_info`` has now a ``speed_capa`` bitmap, which
+  allows the application to know the supported speeds of each device.
+
 * **Added new poll-mode driver for Amazon Elastic Network Adapters (ENA).**
 
   The driver operates variety of ENA adapters through feature negotiation
@@ -464,6 +469,9 @@ This section should contain API changes. Sample format:
   All drivers are now counting the missed packets only once, i.e. drivers will
   not increment ierrors anymore for missed packets.
 
+* The ethdev structure ``rte_eth_dev_info`` was changed to support device
+  speed capabilities.
+
 * The functions ``rte_eth_dev_udp_tunnel_add`` and ``rte_eth_dev_udp_tunnel_delete``
   have been renamed into ``rte_eth_dev_udp_tunnel_port_add`` and
   ``rte_eth_dev_udp_tunnel_port_delete``.

diff --git a/drivers/net/bnx2x/bnx2x_ethdev.c b/drivers/net/bnx2x/bnx2x_ethdev.c
index a3c6c01..897081f 100644 (file)
--- a/drivers/net/bnx2x/bnx2x_ethdev.c
+++ b/drivers/net/bnx2x/bnx2x_ethdev.c
@@ -327,6 +327,7 @@ bnx2x_dev_infos_get(struct rte_eth_dev *dev, __rte_unused struct rte_eth_dev_inf
        dev_info->min_rx_bufsize = BNX2X_MIN_RX_BUF_SIZE;
        dev_info->max_rx_pktlen  = BNX2X_MAX_RX_PKT_LEN;
        dev_info->max_mac_addrs  = BNX2X_MAX_MAC_ADDRS;
+       dev_info->speed_capa = ETH_LINK_SPEED_10G | ETH_LINK_SPEED_20G;
 }
 
 static void

diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c
index 8845c76..bb134e5 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_ethdev.c
+++ b/drivers/net/cxgbe/cxgbe_ethdev.c
@@ -171,6 +171,7 @@ static void cxgbe_dev_info_get(struct rte_eth_dev *eth_dev,
 
        device_info->rx_desc_lim = cxgbe_desc_lim;
        device_info->tx_desc_lim = cxgbe_desc_lim;
+       device_info->speed_capa = ETH_LINK_SPEED_10G | ETH_LINK_SPEED_40G;
 }
 
 static void cxgbe_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)

diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 8e4bd08..890c5c3 100644 (file)
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -1055,6 +1055,10 @@ eth_em_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                .nb_min = E1000_MIN_RING_DESC,
                .nb_align = EM_TXD_ALIGN,
        };
+
+       dev_info->speed_capa = ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M |
+                       ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M |
+                       ETH_LINK_SPEED_1G;
 }
 
 /* return 0 means link status changed, -1 means not changed */

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 86f25f6..95d1711 100644 (file)
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -1921,6 +1921,10 @@ eth_igb_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 
        dev_info->rx_desc_lim = rx_desc_lim;
        dev_info->tx_desc_lim = tx_desc_lim;
+
+       dev_info->speed_capa = ETH_LINK_SPEED_10M_HD | ETH_LINK_SPEED_10M |
+                       ETH_LINK_SPEED_100M_HD | ETH_LINK_SPEED_100M |
+                       ETH_LINK_SPEED_1G;
 }
 
 static const uint32_t *

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 1046286..4e403af 100644 (file)
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1170,6 +1170,15 @@ static void ena_infos_get(struct rte_eth_dev *dev,
        ena_dev = &adapter->ena_dev;
        ena_assert_msg(ena_dev != NULL, "Uninitialized device");
 
+       dev_info->speed_capa =
+                       ETH_LINK_SPEED_1G   |
+                       ETH_LINK_SPEED_2_5G |
+                       ETH_LINK_SPEED_5G   |
+                       ETH_LINK_SPEED_10G  |
+                       ETH_LINK_SPEED_25G  |
+                       ETH_LINK_SPEED_40G  |
+                       ETH_LINK_SPEED_50G;
+
        /* Get supported features from HW */
        rc = ena_com_get_dev_attr_feat(ena_dev, &feat);
        if (unlikely(rc)) {

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index b76e9e5..2be297a 100644 (file)
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1412,6 +1412,10 @@ fm10k_dev_infos_get(struct rte_eth_dev *dev,
                .nb_min = FM10K_MIN_TX_DESC,
                .nb_align = FM10K_MULT_TX_DESC,
        };
+
+       dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_2_5G |
+                       ETH_LINK_SPEED_10G | ETH_LINK_SPEED_25G |
+                       ETH_LINK_SPEED_40G;
 }
 
 #ifdef RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 988c2de..cde314d 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2287,6 +2287,7 @@ static void
 i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {
        struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+       struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct i40e_vsi *vsi = pf->main_vsi;
 
        dev_info->max_rx_queues = vsi->nb_qps;
@@ -2358,6 +2359,13 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
                dev_info->max_rx_queues += dev_info->vmdq_queue_num;
                dev_info->max_tx_queues += dev_info->vmdq_queue_num;
        }
+
+       if (i40e_is_40G_device(hw->device_id))
+               /* For XL710 */
+               dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G;
+       else
+               /* For X710 */
+               dev_info->speed_capa = ETH_LINK_SPEED_10G | ETH_LINK_SPEED_40G;
 }
 
 static int

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 60a9cf4..894278f 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2965,6 +2965,14 @@ ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
        dev_info->hash_key_size = IXGBE_HKEY_MAX_INDEX * sizeof(uint32_t);
        dev_info->reta_size = ixgbe_reta_size_get(hw->mac.type);
        dev_info->flow_type_rss_offloads = IXGBE_RSS_OFFLOAD_ALL;
+
+       dev_info->speed_capa = ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G;
+       if (hw->mac.type == ixgbe_mac_X540 ||
+           hw->mac.type == ixgbe_mac_X540_vf ||
+           hw->mac.type == ixgbe_mac_X550 ||
+           hw->mac.type == ixgbe_mac_X550_vf) {
+               dev_info->speed_capa |= ETH_LINK_SPEED_100M;
+       }
 }
 
 static const uint32_t *

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 5cc995f..ed2f488 100644 (file)
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -4328,6 +4328,12 @@ mlx4_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
                 0);
        if (priv_get_ifname(priv, &ifname) == 0)
                info->if_index = if_nametoindex(ifname);
+       info->speed_capa =
+                       ETH_LINK_SPEED_1G |
+                       ETH_LINK_SPEED_10G |
+                       ETH_LINK_SPEED_20G |
+                       ETH_LINK_SPEED_40G |
+                       ETH_LINK_SPEED_56G;
        priv_unlock(priv);
 }
 

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 58bfa16..d7a0eea 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -559,6 +559,14 @@ 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);
 }
 

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 201c38e..dd033f4 100644 (file)
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -1061,6 +1061,8 @@ nfp_net_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 
        dev_info->reta_size = NFP_NET_CFG_RSS_ITBL_SZ;
        dev_info->hash_key_size = NFP_NET_CFG_RSS_KEY_SZ;
+
+       dev_info->speed_capa = ETH_LINK_SPEED_40G;
 }
 
 static const uint32_t *

diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index bc7d607..49fdcb7 100644 (file)
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -241,6 +241,23 @@ struct rte_eth_stats {
        /**< Total number of good bytes transmitted to loopback,VF Only */
 };
 
+/**
+ * Device supported speeds bitmap flags
+ */
+#define ETH_LINK_SPEED_10M_HD   (1 <<  1)  /**<  10 Mbps half-duplex */
+#define ETH_LINK_SPEED_10M      (1 <<  2)  /**<  10 Mbps full-duplex */
+#define ETH_LINK_SPEED_100M_HD  (1 <<  3)  /**< 100 Mbps half-duplex */
+#define ETH_LINK_SPEED_100M     (1 <<  4)  /**< 100 Mbps full-duplex */
+#define ETH_LINK_SPEED_1G       (1 <<  5)  /**<   1 Gbps */
+#define ETH_LINK_SPEED_2_5G     (1 <<  6)  /**< 2.5 Gbps */
+#define ETH_LINK_SPEED_5G       (1 <<  7)  /**<   5 Gbps */
+#define ETH_LINK_SPEED_10G      (1 <<  8)  /**<  10 Gbps */
+#define ETH_LINK_SPEED_20G      (1 <<  9)  /**<  20 Gbps */
+#define ETH_LINK_SPEED_25G      (1 << 10)  /**<  25 Gbps */
+#define ETH_LINK_SPEED_40G      (1 << 11)  /**<  40 Gbps */
+#define ETH_LINK_SPEED_50G      (1 << 12)  /**<  50 Gbps */
+#define ETH_LINK_SPEED_56G      (1 << 13)  /**<  56 Gbps */
+
 /**
  * Ethernet numeric link speeds in Mbps
  */
@@ -850,6 +867,9 @@ struct rte_eth_conf {
 #define DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM 0x00000080 /**< Used for tunneling packet. */
 #define DEV_TX_OFFLOAD_QINQ_INSERT 0x00000100
 
+/**
+ * Ethernet device information
+ */
 struct rte_eth_dev_info {
        struct rte_pci_device *pci_dev; /**< Device PCI information. */
        const char *driver_name; /**< Device Driver name. */
@@ -878,6 +898,7 @@ struct rte_eth_dev_info {
        uint16_t vmdq_pool_base;  /**< First ID of VMDQ pools. */
        struct rte_eth_desc_lim rx_desc_lim;  /**< RX descriptors limits */
        struct rte_eth_desc_lim tx_desc_lim;  /**< TX descriptors limits */
+       uint32_t speed_capa;  /**< Supported speeds bitmap (ETH_LINK_SPEED_). */
 };
 
 /**