With a default size of 16kiB and with maximum of 32 buffers, we can transfer up to 512kiB, however Linux can transfer up to 1MiB in a single mass storage block transfer to USB3 storage devices. Because of this, 1MiB block transfers end up being slower than 512kiB block transfers. Let's increase maximum number of storage buffers to a ridiculous amount (256) so that anybody wanting to test maximum achievable throughput can do so. Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> --- drivers/usb/gadget/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 2057add439f0..3c3f31ceece7 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -114,7 +114,7 @@ config USB_GADGET_VBUS_DRAW config USB_GADGET_STORAGE_NUM_BUFFERS int "Number of storage pipeline buffers" - range 2 32 + range 2 256 default 2 help Usually 2 buffers are enough to establish a good buffering -- 2.8.2 --------------------------------------------------------------------- Intel Finland Oy Registered Address: PL 281, 00181 Helsinki Business Identity Code: 0357606 - 4 Domiciled in Helsinki This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
