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From:   Hans Schultz <netdev@kapio-technology.com>
To:     Ido Schimmel <idosch@nvidia.com>
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Subject: Re: [PATCH v2 net-next 6/6] selftests: forwarding: add dynamic FDB
 test
In-Reply-To: <ZBgdAo8mxwnl+pEE@shredder>
References: <20230318141010.513424-1-netdev@kapio-technology.com>
 <20230318141010.513424-7-netdev@kapio-technology.com>
 <ZBgdAo8mxwnl+pEE@shredder>
Date:   Sun, 26 Mar 2023 17:41:06 +0200
Message-ID: <87a5zzh65p.fsf@kapio-technology.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

On Mon, Mar 20, 2023 at 10:44, Ido Schimmel <idosch@nvidia.com> wrote:
>> +	$MZ $swp1 -c 1 -p 128 -t udp "sp=54321,dp=12345" \
>> +		-a $mac -b `mac_get $h2` -A 192.0.2.1 -B 192.0.2.2 -q
>> +	tc_check_packets "dev $swp2 egress" 1 1
>> +	check_fail $? "Dynamic FDB entry did not age out"
>
> Shouldn't this be check_err()? After the FDB entry was aged you want to
> make sure that packets received via $swp1 with SMAC being $mac are no
> longer forwarded by the bridge.

I was thinking that check_fail() will pass when tc_check_packets() does
not see any packets, thus the test passing here when no packets are forwarded?

>
> Also, I suggest executing 'bridge fdb get' to make sure the entry is no
> longer present in the bridge FDB.
>