On Monday 24 March 2014 09:32:17 Florian Fainelli wrote: > > + priv->tx_skb[tx_head] = skb; > > + priv->tx_phys[tx_head] = phys; > > + desc->send_addr = cpu_to_be32(phys); > > + desc->send_size = cpu_to_be16(skb->len); > > + desc->cfg = cpu_to_be32(DESC_DEF_CFG); > > + phys = priv->tx_desc_dma + tx_head * sizeof(struct tx_desc); > > + desc->wb_addr = cpu_to_be32(phys); > > Don't we need a barrier here to ensure that all stores are completed > before we hand this descriptor address to hip40_set_xmit_desc() which > should make DMA start processing it? I would think the writel() in set_xmit_desc() implies the barrier. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
