> > This is the second version of my patch that removes the expensive memcpy of > > received > > ethernet frames in interrupt context. > > > > I have 1 report(from Ricardo Scop) of 20% increase in packets/second, packet > > size 1500 when > > applied to 8260 FEC(needs to be applied manually). But min packet size > > decreased with 10 %. > > This version should fix the 10% decrease case. > > > > This patch could be adapted 8xx_io/fec.c and 8260_io/enet.c and > > 8260/fcc_enet.c with little effort. > > > > Better fix a bug in set_multicast_list(), move the dmi list forward when > > walking it(dmi = dmi->next;) > > > > New stuff: > > - Configrable: copy small packets or pass them directly, see > > COPY_SMALL_FRAMES in code. > > - Collision reporting fix form Thomas Lange. > > - Don't pass receive frames which has error upwards. > > - Report RX_OV errors as fifo errors, not crc errors. > > > > Please test and report any problems and performace improvements. > > Hi > > This is the third version of my optimized enet.c patch. > Changes since version 2: > 1) invalidate the whole buffer BEFORE it is given to he CPM. Previously > it was invalidated after the packet was received and that could lead to > buffer > corruption in some cases. > > 2) use dma_cache_inv() instead of invalidate_dcache_range() since that will > work > for both 8xx and 82xx. > > 3) decrease the allocated buffer length. > > 4) disabled COPY_SMALL_FRAME. Define it somewhere if you want to save some > memory. > > 5) probably some white space changes got in too. > > Any chance to see it the devel tree? > > More than 3 months has passed since version 2 and the only problem reported > was > 1) and the fix has been know since mid November. > > Dan, you said you would integrate this patch(or some version of it) in > November. I > think I have waited long enough now. Please do ASAP. > > Jocke [SNIP]
Zero feedback so far. Is there zero interest to improve the mpc code in linuxppc? Anyhow, I give up. Don't have the energy to resend over and over again. Jocke ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
