[PATCH] net/bonding: fix flow flush order on bonded device close

[Andrew Rybchenko]

Chas, Cornor, could you review the patch, please.

Thanks,
Andrew.

On 9/11/22 15:22, Ivan Malov wrote:
> The current code first removes all back-end devices of
> the bonded device and then invokes flush operation to
> remove flows in such back-end devices, which makes no
> sense. Fix that by re-ordering the steps accordingly.
> 
> Fixes: 49dad9028e2a ("net/bonding: support flow API")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Ivan Malov <ivan.malov at oktetlabs.ru>
> Reviewed-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
> ---
>   drivers/net/bonding/rte_eth_bond_pmd.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
> index a5429f5e97..d01c954296 100644
> --- a/drivers/net/bonding/rte_eth_bond_pmd.c
> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c
> @@ -2155,6 +2155,10 @@ bond_ethdev_close(struct rte_eth_dev *dev)
>   		return 0;
>   
>   	RTE_BOND_LOG(INFO, "Closing bonded device %s", dev->device->name);
> +
> +	/* Flush flows in all back-end devices before removing them */
> +	bond_flow_ops.flush(dev, &ferror);
> +
>   	while (internals->slave_count != skipped) {
>   		uint16_t port_id = internals->slaves[skipped].port_id;
>   
> @@ -2172,7 +2176,6 @@ bond_ethdev_close(struct rte_eth_dev *dev)
>   			skipped++;
>   		}
>   	}
> -	bond_flow_ops.flush(dev, &ferror);
>   	bond_ethdev_free_queues(dev);
>   	rte_bitmap_reset(internals->vlan_filter_bmp);
>   	rte_bitmap_free(internals->vlan_filter_bmp);