[dpdk-dev] [PATCH 1/2] ethdev: add api to set default mac address

[Ananyev, Konstantin]

> -----Original Message-----
> From: Wang, Liang-min
> Sent: Friday, May 29, 2015 8:27 PM
> To: dev at dpdk.org
> Cc: Richardson, Bruce; Ananyev, Konstantin; dharton at cisco.com; agh at cisco.com; Wang, Liang-min
> Subject: [PATCH 1/2] ethdev: add api to set default mac address
> 
> add a new api: rte_eth_dev_default_mac_addr_set to
> support changing default mac address of a NIC
> 
> Signed-off-by: Liang-Min Larry Wang <liang-min.wang at intel.com>
> ---
>  lib/librte_ether/rte_ethdev.c          | 16 ++++++++++++++++
>  lib/librte_ether/rte_ethdev.h          | 14 ++++++++++++++
>  lib/librte_ether/rte_ether_version.map |  1 +
>  3 files changed, 31 insertions(+)
> 
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index 024fe8b..96ee00e 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -2752,6 +2752,22 @@ rte_eth_dev_mac_addr_remove(uint8_t port_id, struct ether_addr *addr)
>  }
> 
>  int
> +rte_eth_dev_default_mac_addr_set(uint8_t port_id, struct ether_addr *addr)
> +{
> +	struct rte_eth_dev *dev;
> +
> +	if (!rte_eth_dev_is_valid_port(port_id)) {
> +		PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
> +		return -ENODEV;
> +	}
> +
> +	dev = &rte_eth_devices[port_id];
> +	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->mac_addr_set, -ENOTSUP);
> +
> +	return (*dev->dev_ops->mac_addr_set)(dev, addr);
> +}


As I can see mac_addr_set() is implemented now only for virtio.
Which means that for all Intel HW your new rte_eth_dev_default_mac_addr_set()
would not work right now?
Probably rte_eth_dev_default_mac_addr_set() should combine both approaches:
If mac_addr_set() is implemented by dev, then use it, otherwise try to use addr_remove()/addr_add()
(as your first version did)?
Konstantin   


> +
> +int
>  rte_eth_dev_set_vf_rxmode(uint8_t port_id,  uint16_t vf,
>  				uint16_t rx_mode, uint8_t on)
>  {
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
> index 16dbe00..5f07e0d 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -2982,6 +2982,20 @@ int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
>  int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
> 
>  /**
> + * Set the default MAC address.
> + *
> + * @param port
> + *   The port identifier of the Ethernet device.
> + * @param mac_addr
> + *   New default MAC address.
> + * @return
> + *   - (0) if successful, or *mac_addr* didn't exist.
> + *   - (-ENOTSUP) if hardware doesn't support.
> + *   - (-ENODEV) if *port* invalid.
> + */
> +int rte_eth_dev_default_mac_addr_set(uint8_t port, struct ether_addr *mac_addr);
> +
> +/**
>   * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
>   *
>   * @param port
> diff --git a/lib/librte_ether/rte_ether_version.map b/lib/librte_ether/rte_ether_version.map
> index a2d25a6..2dbbaa7 100644
> --- a/lib/librte_ether/rte_ether_version.map
> +++ b/lib/librte_ether/rte_ether_version.map
> @@ -102,6 +102,7 @@ DPDK_2.0 {
>  	rte_eth_tx_queue_setup;
>  	rte_eth_xstats_get;
>  	rte_eth_xstats_reset;
> +	rte_eth_dev_default_mac_addr_set;
> 
>  	local: *;
>  };
> --
> 2.1.4