Re: [dpdk-dev] [PATCH v4] net/ixgbe: ping VF when PF status changes

["Dai, Wei" <wei.dai@intel.com>]

Hi, Alexz
Thanks for your quick reponse.

Hi, Wenzhuo
Would you please review it again and add your acknowledgement if it is OK for you.

> Subject: [PATCH v4] net/ixgbe: ping VF when PF status changes
> 
> From: Alex Zelezniak <alexz@att.com>
> 
> v4:
> * Removed duplicate line
> 
> v3:
> * Added 17.05 block to rte_pmd_ixgbe_version.map file
> 
> v2:
> * Removed trailing spaces
> 
> v1:
> * Implements function used by application managing PF to inform VF when link
> status changes
> 
> Signed-off-by: Alex Zelezniak <alexz@att.com>
Acked-by: Wei Dai <wei.dai@intel.com>

> ---
>  drivers/net/ixgbe/ixgbe_ethdev.c            | 31
> +++++++++++++++++++++++++++++
>  drivers/net/ixgbe/rte_pmd_ixgbe.h           | 14 +++++++++++++
>  drivers/net/ixgbe/rte_pmd_ixgbe_version.map |  6 ++++++
>  3 files changed, 51 insertions(+)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 34bd681..a427a3d 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -4898,6 +4898,37 @@ static void ixgbevf_set_vfta_all(struct rte_eth_dev
> *dev, bool on)
>  	return new_val;
>  }
> 
> +int
> +rte_pmd_ixgbe_ping_vf(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));
> +
> +	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..cdb747e 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_vf(uint8_t port, uint16_t vf);
> +
> +/**
>   * Set the VF MAC address.
>   *
>   * @param port
> diff --git a/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
> b/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
> index a992dfd..2c7512d 100644
> --- a/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
> +++ b/drivers/net/ixgbe/rte_pmd_ixgbe_version.map
> @@ -31,3 +31,9 @@ DPDK_17.02 {
>  	rte_pmd_ixgbe_set_vf_tx;
>  	rte_pmd_ixgbe_set_vf_vlan_filter;
>  } DPDK_16.11;
> +
> +DPDK_17.05 {
> +	global:
> +
> +	rte_pmd_ixgbe_ping_vf;
> +} DPDK_17.02;
> --
> 1.9.1