From: Andrew Lunn <and...@lunn.ch> Date: Sun, 30 Jul 2017 19:36:05 +0200
> The FEC Receive Control Register has a 14 bit field indicating the > longest frame that my be received. It is being set to 1522. Frames > longer than this are discarded, but counted as being in error. > > When using DSA, frames from the switch has an additional header, > either 4 or 8 bytes if a Marvell switch is used. Thus a full MTU frame > of 1522 bytes received by the switch on a port becomes 1530 bytes when > passed to the host via the FEC interface. > > Change the maximum receive size to 2048 - 64, where 64 is the maximum > rx_alignment applied on the receive buffer for AVB capable FEC > cores. Use this value also for the maximum receive buffer size. The > driver is already allocating a receive SKB of 2048 bytes, so this > change should not have any significant effects. > > Tested on imx51, imx6, vf610. > > Signed-off-by: Andrew Lunn <and...@lunn.ch> Applied with commit log message typo fixed.
