Hello, On Tue, Feb 22, 2011 at 11:16:56AM +0530, viresh kumar wrote: > Actually, we really don't have scatter-gather in our controller. > We have to read/write to the same FIFO address for every 512 bytes, after > which we get buf_avail interrupt. And Controller can do a maximum transfer > of 256 KB after which it gives transfer complete interrupt. > > So all sg has to be handled in software, framework or driver. Yeap, so you don't need to follow the silly BMDMA restrictions. > Also, we will always read/write from/to FIFO. And the external DMA controller > doesn't have any limitation of this dma_boudary. > > So i feel i should keep > .sg_tablesize = SG_ALL, > .dma_boundary = 0xFFFFFFFF, > > Please correct me if i am wrong. Looks good to me. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
