[dpdk-stable] [PATCH] net/enic: fix max MTU calculation

[Ferruh Yigit]

On 3/14/2019 11:05 AM, Hyong Youb Kim wrote:
> The maximum packet length (max_pkt_len) from the firmware does not
> include CRC, so do not subtract 4 when deriving the max MTU. This
> change effectively increases the max MTU by 4B. Apps often assume max
> MTU = max_rx_pkt_len - 14 (ethernet header), and attempt to set the
> MTU to that value (i.e. set MTU to max HW value). This change
> incidentally allows such apps to change MTU to max value successfully.
> 
> Fixes: bb34ffb848a0 ("net/enic: determine max egress packet size and max MTU")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Hyong Youb Kim <hyonkim at cisco.com>
> Reviewed-by: John Daley <johndale at cisco.com>

Applied to dpdk-next-net/master, thanks.