[dpdk-dev] [PATCH] net/ixgbe: notify VF when PF link status changes

[Iremonger, Bernard]

Hi Alex,

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of alexz at att.com
> Sent: Wednesday, March 22, 2017 5:32 PM
> To: dev at dpdk.org
> Cc: Ananyev, Konstantin <konstantin.ananyev at intel.com>; Zhang, Helin
> <helin.zhang at intel.com>; Lu, Wenzhuo <wenzhuo.lu at intel.com>; Alex
> Zelezniak <alexz at att.com>
> Subject: [dpdk-dev] [PATCH] net/ixgbe: notify VF when PF link status
> changes
> 
> From: Alex Zelezniak <alexz at att.com>
> 
> Signed-off-by: Alex Zelezniak <alexz at att.com>
> ---
>  drivers/net/ixgbe/ixgbe_ethdev.c  | 33
> +++++++++++++++++++++++++++++++++
> drivers/net/ixgbe/rte_pmd_ixgbe.h | 14 ++++++++++++++
>  2 files changed, 47 insertions(+)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 7169007..a0e7aeb 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -4894,6 +4894,39 @@ static void ixgbevf_set_vfta_all(struct
> rte_eth_dev *dev, bool on)
>  	return new_val;
>  }
> 
> +int
> +rte_pmd_ixgbe_ping_vfs(uint8_t port, uint16_t vf) {
> +	struct ixgbe_hw *hw;
> +	struct ixgbe_vf_info *vfinfo;
> +	struct rte_eth_dev *dev;
> +	struct rte_pci_device *pci_dev;
> +	uint32_t ctrl;
> +
> +	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
> +
> +	dev = &rte_eth_devices[port];
> +	pci_dev = IXGBE_DEV_TO_PCI(dev);
> +
> +	if (!is_device_supported(dev, &rte_ixgbe_pmd))
> +		return -ENOTSUP;
> +
> +	if (vf >= pci_dev->max_vfs)
> +		return -EINVAL;
> +
> +	hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> +	vfinfo = *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data-
> >dev_private));
> +
> +	hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> +
> +	ctrl = IXGBE_PF_CONTROL_MSG;
> +	if (vfinfo[vf].clear_to_send)
> +		ctrl |= IXGBE_VT_MSGTYPE_CTS;
> +
> +	ixgbe_write_mbx(hw, &ctrl, 1, vf);
> +
> +	return 0;
> +}
> 
>  int
>  rte_pmd_ixgbe_set_vf_vlan_anti_spoof(uint8_t port, uint16_t vf, uint8_t
> on) diff --git a/drivers/net/ixgbe/rte_pmd_ixgbe.h
> b/drivers/net/ixgbe/rte_pmd_ixgbe.h
> index 4d7b507..7f27992 100644
> --- a/drivers/net/ixgbe/rte_pmd_ixgbe.h
> +++ b/drivers/net/ixgbe/rte_pmd_ixgbe.h
> @@ -42,6 +42,20 @@
>  #include <rte_ethdev.h>
> 
>  /**
> + * Notify VF when PF link status changes.
> + *
> + * @param port
> + *   The port identifier of the Ethernet device.
> + * @param vf
> + *   VF id.
> + * @return
> + *   - (0) if successful.
> + *   - (-ENODEV) if *port* invalid.
> + *   - (-EINVAL) if *vf* invalid.
> + */
> +int rte_pmd_ixgbe_ping_vfs(uint8_t port, uint16_t vf);
> +
> +/**
>   * Set the VF MAC address.
>   *
>   * @param port
> --
> 1.9.1

The drivers/net/ixgbe/rte_pmd_ixgbe_version.map file needs to be updated too.

Regards,

Bernard