[dpdk-stable] [PATCH v2] net/ixgbe: fix x550 Reta set fail error

[Zhang, Qi Z]

> -----Original Message-----
> From: Zhao1, Wei
> Sent: Tuesday, July 23, 2019 12:13 PM
> To: dev at dpdk.org
> Cc: stable at dpdk.org; Zhang, Qi Z <qi.z.zhang at intel.com>; Zhao1, Wei
> <wei.zhao1 at intel.com>
> Subject: [PATCH v2] net/ixgbe: fix x550 Reta set fail error
> 
> There is a bug in function ixgbevf_dev_info_get(), it do not contain the reta
> table size get function for vf port, and this will cause error when update reta
> for x550 vf port. And also when function ixgbe_reta_size_get() is called, it
> should return other ixgbe NIC vf reta support or not, not only x550.

This commit log is a little bit misleading 

Does below description OK for you?

Title:
	net/ixgbe: fix reta size for VF

Filling correct reta table size at ixgbevf_dev_info_get, so reta table update will be supported for VF port.
For X540_vf and 82599_vf, since they don't support reta table update, set reta size to 0.

> 
> Cc: stable at dpdk.org
> 
> Fixes: 2144f6630fca ("ixgbe: add redirection table size in device info")
> Signed-off-by: wei zhao <wei.zhao1 at intel.com>
> ---
>  drivers/net/ixgbe/ixgbe_ethdev.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 22c5b2c..773f667 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -3927,6 +3927,8 @@ ixgbevf_dev_info_get(struct rte_eth_dev *dev,
>  				     dev_info->rx_queue_offload_capa);
>  	dev_info->tx_queue_offload_capa = ixgbe_get_tx_queue_offloads(dev);
>  	dev_info->tx_offload_capa = ixgbe_get_tx_port_offloads(dev);
> +	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->default_rxconf = (struct rte_eth_rxconf) {
>  		.rx_thresh = {
> @@ -7438,6 +7440,9 @@ ixgbe_reta_size_get(enum ixgbe_mac_type
> mac_type) {
>  	case ixgbe_mac_X550EM_x_vf:
>  	case ixgbe_mac_X550EM_a_vf:
>  		return ETH_RSS_RETA_SIZE_64;
> +	case ixgbe_mac_X540_vf:
> +	case ixgbe_mac_82599_vf:
> +		return 0;
>  	default:
>  		return ETH_RSS_RETA_SIZE_128;
>  	}
> --
> 2.7.5