[dpdk-stable] [dpdk-dev] [PATCH] net/i40e: fix tx queue setup after stop queue

[Kevin Traynor]

On 07/10/2018 11:37 AM, Shaopeng He wrote:
> Currently, i40e_dev_tx_queue_setup_runtime checks simple tx and treats
> mbuf fast free offloading as No-simple, which is classified as simple tx
> in i40e_set_tx_function_flag. This inconsistent behavior causes tx queue
> setup fail after queue was stopped. This patch fixes this bug.
> 
> Fixes: 399421100e08 ("net/i40e: fix missing mbuf fast free offload")

Is it missing Cc: stable at dpdk.org tag for 18.05 stable branch?

> 
> Signed-off-by: Shaopeng He <shaopeng.he at intel.com>
> ---
>  drivers/net/i40e/i40e_rxtx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
> index 6032d5541..2bbb82fc3 100644
> --- a/drivers/net/i40e/i40e_rxtx.c
> +++ b/drivers/net/i40e/i40e_rxtx.c
> @@ -2087,7 +2087,7 @@ i40e_dev_tx_queue_setup_runtime(struct rte_eth_dev *dev,
>  	}
>  	/* check simple tx conflict */
>  	if (ad->tx_simple_allowed) {
> -		if (txq->offloads != 0 ||
> +		if ((txq->offloads & ~DEV_TX_OFFLOAD_MBUF_FAST_FREE) != 0 ||
>  				txq->tx_rs_thresh < RTE_PMD_I40E_TX_MAX_BURST) {
>  			PMD_DRV_LOG(ERR, "No-simple tx is required.");
>  			return -EINVAL;
>