REG_MAC_COLL_EXCESS
writel(0, cp->regs + REG_MAC_COLL_EXCESS);
{REG_MAC_COLL_EXCESS},
tmp = (readl(cp->regs + REG_MAC_COLL_EXCESS) & 0xffff) +
readl(cp->regs + REG_MAC_COLL_EXCESS);
stats[N_TX_RINGS].collisions += readl(cp->regs + REG_MAC_COLL_EXCESS) +