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

[Ivan Malov <ivan.malov@oktetlabs.ru>]

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Hi Chas, Andrew,

On Wed, 19 Oct 2022, Andrew Rybchenko wrote:

> On 10/17/22 15:34, Chas Williams wrote:
>> This appears to be correct, but it needs to be coordinated with the
>> proposed changes in net/bonding: make bonded device configure method 
>> re-entrant

Needs to be coordinated - in which way? Are you looking to reorder
the patches? If yes, v2 should be OK with this regard.

>
> Ivan, could you comment and send rebased v2 version anyway.

Please see 
https://patches.dpdk.org/project/dpdk/patch/20221019111805.1070381-1-ivan.malov@oktetlabs.ru/ 
.
>
>> 
>> 
>> On 10/17/22 04:41, Andrew Rybchenko wrote:
>>> 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@dpdk.org
>>>> 
>>>> Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
>>>> Reviewed-by: Andrew Rybchenko <andrew.rybchenko@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);
>>> 
>
>