[dpdk-dev] [PATCH] config: cleanup existing RTE_CACHE_LINE_SIZE selection scheme

Jerin Jacob jerin.jacob at caviumnetworks.com
Tue Dec 8 10:33:35 CET 2015


On Mon, Dec 07, 2015 at 03:45:10PM +0100, Thomas Monjalon wrote:
> 2015-12-07 19:52, Jerin Jacob:
> > by default, all the targets will be configured with the 64-byte cache line
> > size, targets which have different cache line size can be overridden
> > through target specific config file.
> > 
> > Selected ThunderX and power8 as CONFIG_RTE_CACHE_LINE_SIZE=128 targets
> > based on existing configuration.
> > 
> > Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> 
> It looks good.
> We are moving from a constant defined on CC command line in most cases
> to a constant included in rte_config.h only.
> Have you checked that the generated libraries are identical?

Yes, Tested with a 64byte(x86_64-native-linuxapp-gcc) and a 128byte
(arm64-thunderx-linuxapp-gcc) target.
md5sum build/app/test comes same with or without patch.

> It would be good to have a check for POWER8. Chao?
> Thanks


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