On Sun, Dec 28, 2014 at 10:10:01PM -0500, Alan Stern wrote: > (Is this a USB device? Presumably you wouldn't have CC'ed the > linux-usb and usb-storage mailing lists if it wasn't...) It's a usb attached device. From the inquity information and the product name it looks like a SATA device attached via a usb bridge. > The only limits usb-storage imposes on max_sectors are those needed to > work around bugs in the devices' USB bridges. (Okay, there's also > something for tape drive devices, but it probably doesn't belong in > usb-storage -- it should be handled by the SCSI tape driver.) > > If the ATA layer needs to set a limit on max_sectors, why doesn't it > simply go ahead and do so? Because the ATA layer doesn't control the device, the bridge does. And it seems like it doesn't communicate the maximum transfer size properly. -- 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
