27 Apr
2019
27 Apr
'19
4:46 p.m.
On Wed, Apr 17, 2019 at 11:41:42AM +0200, Gregory CLEMENT wrote:
Since the introduction of the driver, some memory in IRAM is reserved for the TX buffers.
However there are not used but instead of it, it is the buffer provided by the net stack which is used. As stated in the comment of the driver, not using the IRAM buffer could cause cache issue and lower the throughput.
For the second argument it is less the case for transmitting buffers because the throughput gain in IRAM is mitigated by the time to copy the data from RAM to IRAM, but the first argument is still valid and indeed this patch fixes issue seen with Ethernet on some boards
Signed-off-by: Gregory CLEMENT gregory.clement@bootlin.com
Applied to u-boot/master, thanks!
--
Tom