[v2] net/bonding: fix create bonded device test failure

  Create bonded device test is failing due to improper initialisation in
bonded device configuration. which leads to crash while setting up queues.

The value of nb_rx_desc is checked if it is not in range of rx_desc_lim of
bonded device which fails.
This is due to "rx_desc_lim" is set to 0 as default value of bonded device
during bond_alloc().
Hence nb_rx_desc (1024) is > 0 and test fails.

Fix is to set the default values of rx_desc_lim of bonded device to
appropriate value.

Fixes: 2efb58cbab6e ("bond: new link bonding library")
Cc: stable@dpdk.org

Signed-off-by: Hari Kumar Vemula <hari.kumarx.vemula@intel.com>
---
v2: bonded device desc_lim values are received from slave configuration
---
 drivers/net/bonding/rte_eth_bond_pmd.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)
  

On 1/28/19 2:28 AM, Hari Kumar Vemula wrote:
> Create bonded device test is failing due to improper initialisation in
> bonded device configuration. which leads to crash while setting up queues.
> 
> The value of nb_rx_desc is checked if it is not in range of rx_desc_lim of
> bonded device which fails.
> This is due to "rx_desc_lim" is set to 0 as default value of bonded device
> during bond_alloc().
> Hence nb_rx_desc (1024) is > 0 and test fails.
> 
> Fix is to set the default values of rx_desc_lim of bonded device to
> appropriate value.
> 
> Fixes: 2efb58cbab6e ("bond: new link bonding library")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Hari Kumar Vemula <hari.kumarx.vemula@intel.com>

Acked-by: Chas Williams <chas3@att.com>

> ---
> v2: bonded device desc_lim values are received from slave configuration
> ---
>   drivers/net/bonding/rte_eth_bond_pmd.c | 14 ++++++++++----
>   1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
> index 44deaf119..23cec2549 100644
> --- a/drivers/net/bonding/rte_eth_bond_pmd.c
> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c
> @@ -2228,6 +2228,8 @@ bond_ethdev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
>   
>   	uint16_t max_nb_rx_queues = UINT16_MAX;
>   	uint16_t max_nb_tx_queues = UINT16_MAX;
> +	uint16_t max_rx_desc_lim = UINT16_MAX;
> +	uint16_t max_tx_desc_lim = UINT16_MAX;
>   
>   	dev_info->max_mac_addrs = BOND_MAX_MAC_ADDRS;
>   
> @@ -2252,6 +2254,12 @@ bond_ethdev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
>   
>   			if (slave_info.max_tx_queues < max_nb_tx_queues)
>   				max_nb_tx_queues = slave_info.max_tx_queues;
> +
> +			if (slave_info.rx_desc_lim.nb_max < max_rx_desc_lim)
> +				max_rx_desc_lim = slave_info.rx_desc_lim.nb_max;
> +
> +			if (slave_info.tx_desc_lim.nb_max < max_tx_desc_lim)
> +				max_tx_desc_lim = slave_info.tx_desc_lim.nb_max;
>   		}
>   	}
>   
> @@ -2263,10 +2271,8 @@ bond_ethdev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
>   	memcpy(&dev_info->default_txconf, &internals->default_txconf,
>   	       sizeof(dev_info->default_txconf));
>   
> -	memcpy(&dev_info->rx_desc_lim, &internals->rx_desc_lim,
> -	       sizeof(dev_info->rx_desc_lim));
> -	memcpy(&dev_info->tx_desc_lim, &internals->tx_desc_lim,
> -	       sizeof(dev_info->tx_desc_lim));
> +	dev_info->rx_desc_lim.nb_max = max_rx_desc_lim;
> +	dev_info->tx_desc_lim.nb_max = max_tx_desc_lim;
>   
>   	/**
>   	 * If dedicated hw queues enabled for link bonding device in LACP mode
>