[dpdk-dev] [PATCH v2 1/2] net/af_packet: fix driver init with default MTU

[Ferruh Yigit]

On 10/27/2021 4:12 PM, Andrew Rybchenko wrote:
> On 10/27/21 12:14 PM, Ferruh Yigit wrote:
>> Driver is using 'ETH_FRAME_LEN' Linux defined value as max frame length,
>> which doesn't include FCS (4 bytes CRC). But ethdev by default uses
>> frame size with FCS when application doesn't define any explicit value.
>>
>> As a result device configuration fails because device is tried to be
>> configured with a frame size length that is bigger than what device
>> reported as supported. Device reports as max supported frame size is
>> 1514 but configured value is 1518.
>>
>> Instead use DPDK macro, 'RTE_ETHER_MAX_LEN', that includes FCS in the
>> driver to report the max supported frame size, this matches to the
>> initial intention.
>>
>> Fixes: 1bb4a528c41f ("ethdev: fix max Rx packet length")
>>
>> Reported-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> Reviewed-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
> 

Series applied to dpdk-next-net/main, thanks.