Messages in this thread | | | Date | Fri, 2 Mar 2018 17:11:17 +0100 | From | Thomas Petazzoni <> | Subject | Re: [PATCH net-next 3/5] net: mvpp2: use a data size of 10kB for Tx FIFO on port 0 |
| |
Hello,
On Fri, 2 Mar 2018 16:40:42 +0100, Antoine Tenart wrote:
> -/* Initialize Tx FIFO's */ > +/* Initialize Tx FIFO's > + * The CP110's total tx-fifo size is 19kB. > + * Use large-size 10kB for fast port but 3kB for others. > + */
Is there a reason to hardcode 10KB for port 0, and 3KB for the other ports ? Would there be use cases where the user may want different configurations ?
It's just that it feels very "hardcoded" to enforce specifically those numbers.
Also, does it make sense to mention the CP110 here ? Is this 19 KB limitation a limit of the PPv2.2 IP, or of the CP110 ?
Thomas -- Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering http://bootlin.com
| |