[dpdk-dev,v13,5/8] ethdev: add speed capabilities

Message ID 1458955640-22951-6-git-send-email-marcdevel@gmail.com (mailing list archive)
State Changes Requested, archived
Headers

Commit Message

Marc Sune March 26, 2016, 1:27 a.m. UTC
  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>
---
 doc/guides/nics/overview.rst           |  1 +
 doc/guides/rel_notes/release_16_04.rst |  8 ++++++++
 drivers/net/bnx2x/bnx2x_ethdev.c       |  1 +
 drivers/net/cxgbe/cxgbe_ethdev.c       |  1 +
 drivers/net/e1000/em_ethdev.c          |  4 ++++
 drivers/net/e1000/igb_ethdev.c         |  4 ++++
 drivers/net/ena/ena_ethdev.c           |  9 +++++++++
 drivers/net/fm10k/fm10k_ethdev.c       |  4 ++++
 drivers/net/i40e/i40e_ethdev.c         |  8 ++++++++
 drivers/net/ixgbe/ixgbe_ethdev.c       |  8 ++++++++
 drivers/net/mlx4/mlx4.c                |  6 ++++++
 drivers/net/mlx5/mlx5_ethdev.c         |  8 ++++++++
 drivers/net/nfp/nfp_net.c              |  2 ++
 lib/librte_ether/rte_ethdev.h          | 21 +++++++++++++++++++++
 14 files changed, 85 insertions(+)
  

Comments

Alejandro Lucero March 29, 2016, 1:31 p.m. UTC | #1
For nfp.c, speed_capa should be ETH_LINK_SPEED_40G instead of
ETH_LINK_SPEED_50G.
By the way, the change in patch 4 sets the right link speed using the new
constants.

Regards

On Sat, Mar 26, 2016 at 1:27 AM, Marc Sune <marcdevel@gmail.com> wrote:

> 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>
> ---
>  doc/guides/nics/overview.rst           |  1 +
>  doc/guides/rel_notes/release_16_04.rst |  8 ++++++++
>  drivers/net/bnx2x/bnx2x_ethdev.c       |  1 +
>  drivers/net/cxgbe/cxgbe_ethdev.c       |  1 +
>  drivers/net/e1000/em_ethdev.c          |  4 ++++
>  drivers/net/e1000/igb_ethdev.c         |  4 ++++
>  drivers/net/ena/ena_ethdev.c           |  9 +++++++++
>  drivers/net/fm10k/fm10k_ethdev.c       |  4 ++++
>  drivers/net/i40e/i40e_ethdev.c         |  8 ++++++++
>  drivers/net/ixgbe/ixgbe_ethdev.c       |  8 ++++++++
>  drivers/net/mlx4/mlx4.c                |  6 ++++++
>  drivers/net/mlx5/mlx5_ethdev.c         |  8 ++++++++
>  drivers/net/nfp/nfp_net.c              |  2 ++
>  lib/librte_ether/rte_ethdev.h          | 21 +++++++++++++++++++++
>  14 files changed, 85 insertions(+)
>
> diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst
> index 542479a..62f1868 100644
> --- 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 79d76e1..9e7b0b7 100644
> --- 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
> @@ -456,6 +461,9 @@ 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
> --- 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
> --- 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 473d77f..d5f8c7f 100644
> --- a/drivers/net/e1000/em_ethdev.c
> +++ b/drivers/net/e1000/em_ethdev.c
> @@ -1054,6 +1054,10 @@ 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
> --- 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
> --- 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 53aa1bb..85ad0df 100644
> --- a/drivers/net/fm10k/fm10k_ethdev.c
> +++ b/drivers/net/fm10k/fm10k_ethdev.c
> @@ -1410,6 +1410,10 @@ 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 cce9e6f..dce31db 100644
> --- 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 a0179d2..a98e8eb 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -2960,6 +2960,14 @@ 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 f946f08..59ac423 100644
> --- a/drivers/net/mlx4/mlx4.c
> +++ b/drivers/net/mlx4/mlx4.c
> @@ -4313,6 +4313,12 @@ 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
> --- 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 18ea0f4..bdeb21f 100644
> --- 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_50G;
>  }
>
>  static const uint32_t *
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
> index bc7d607..49fdcb7 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -242,6 +242,23 @@ struct rte_eth_stats {
>  };
>
>  /**
> + * 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
>   */
>  #define ETH_LINK_SPEED_AUTONEG     0 /**< Auto-negotiate link speed. */
> @@ -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_). */
>  };
>
>  /**
> --
> 2.1.4
>
>
  
Marc Sune March 30, 2016, 8:06 a.m. UTC | #2
On 29 March 2016 at 15:31, Alejandro Lucero <alejandro.lucero@netronome.com>
wrote:

> For nfp.c, speed_capa should be ETH_LINK_SPEED_40G instead of ETH_LINK_SPEED_50G.
> By the way, the change in patch 4 sets the right link speed using the new
> constants.
>
> Regards
>

Noted for v14, thanks

Marc


>
> On Sat, Mar 26, 2016 at 1:27 AM, Marc Sune <marcdevel@gmail.com> wrote:
>
>> 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>
>> ---
>>  doc/guides/nics/overview.rst           |  1 +
>>  doc/guides/rel_notes/release_16_04.rst |  8 ++++++++
>>  drivers/net/bnx2x/bnx2x_ethdev.c       |  1 +
>>  drivers/net/cxgbe/cxgbe_ethdev.c       |  1 +
>>  drivers/net/e1000/em_ethdev.c          |  4 ++++
>>  drivers/net/e1000/igb_ethdev.c         |  4 ++++
>>  drivers/net/ena/ena_ethdev.c           |  9 +++++++++
>>  drivers/net/fm10k/fm10k_ethdev.c       |  4 ++++
>>  drivers/net/i40e/i40e_ethdev.c         |  8 ++++++++
>>  drivers/net/ixgbe/ixgbe_ethdev.c       |  8 ++++++++
>>  drivers/net/mlx4/mlx4.c                |  6 ++++++
>>  drivers/net/mlx5/mlx5_ethdev.c         |  8 ++++++++
>>  drivers/net/nfp/nfp_net.c              |  2 ++
>>  lib/librte_ether/rte_ethdev.h          | 21 +++++++++++++++++++++
>>  14 files changed, 85 insertions(+)
>>
>> diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst
>> index 542479a..62f1868 100644
>> --- 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 79d76e1..9e7b0b7 100644
>> --- 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
>> @@ -456,6 +461,9 @@ 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
>> --- 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
>> --- 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 473d77f..d5f8c7f 100644
>> --- a/drivers/net/e1000/em_ethdev.c
>> +++ b/drivers/net/e1000/em_ethdev.c
>> @@ -1054,6 +1054,10 @@ 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
>> --- 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
>> --- 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 53aa1bb..85ad0df 100644
>> --- a/drivers/net/fm10k/fm10k_ethdev.c
>> +++ b/drivers/net/fm10k/fm10k_ethdev.c
>> @@ -1410,6 +1410,10 @@ 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 cce9e6f..dce31db 100644
>> --- 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 a0179d2..a98e8eb 100644
>> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
>> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
>> @@ -2960,6 +2960,14 @@ 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 f946f08..59ac423 100644
>> --- a/drivers/net/mlx4/mlx4.c
>> +++ b/drivers/net/mlx4/mlx4.c
>> @@ -4313,6 +4313,12 @@ 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
>> --- 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 18ea0f4..bdeb21f 100644
>> --- 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_50G;
>>  }
>>
>>  static const uint32_t *
>> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
>> index bc7d607..49fdcb7 100644
>> --- a/lib/librte_ether/rte_ethdev.h
>> +++ b/lib/librte_ether/rte_ethdev.h
>> @@ -242,6 +242,23 @@ struct rte_eth_stats {
>>  };
>>
>>  /**
>> + * 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
>>   */
>>  #define ETH_LINK_SPEED_AUTONEG     0 /**< Auto-negotiate link speed. */
>> @@ -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_). */
>>  };
>>
>>  /**
>> --
>> 2.1.4
>>
>>
>
  

Patch

diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst
index 542479a..62f1868 100644
--- 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 79d76e1..9e7b0b7 100644
--- 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
@@ -456,6 +461,9 @@  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
--- 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
--- 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 473d77f..d5f8c7f 100644
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -1054,6 +1054,10 @@  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
--- 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
--- 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 53aa1bb..85ad0df 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1410,6 +1410,10 @@  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 cce9e6f..dce31db 100644
--- 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 a0179d2..a98e8eb 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2960,6 +2960,14 @@  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 f946f08..59ac423 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -4313,6 +4313,12 @@  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
--- 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 18ea0f4..bdeb21f 100644
--- 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_50G;
 }
 
 static const uint32_t *
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index bc7d607..49fdcb7 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -242,6 +242,23 @@  struct rte_eth_stats {
 };
 
 /**
+ * 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
  */
 #define ETH_LINK_SPEED_AUTONEG     0 /**< Auto-negotiate link speed. */
@@ -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_). */
 };
 
 /**