Re: [net-next-2.6 PATCH 3/3] fs_enet: Add FEC TX Alignment workaround for MPC5121

2010-01-21 Thread Grant Likely
On Wed, Jan 20, 2010 at 7:13 PM, Anatolij Gustschin wrote: > The FEC on 5121 has problems with misaligned tx buffers. > The RM says any alignment is ok but empirical results > show that packet buffers ending in 0x1E will sometimes > hang the FEC.  Other bad alignment does not hang but will > cause

[net-next-2.6 PATCH 3/3] fs_enet: Add FEC TX Alignment workaround for MPC5121

2010-01-20 Thread Anatolij Gustschin
The FEC on 5121 has problems with misaligned tx buffers. The RM says any alignment is ok but empirical results show that packet buffers ending in 0x1E will sometimes hang the FEC. Other bad alignment does not hang but will cause silent TX failures resulting in about a 1% packet loss as tested by p