On 07/30/2018 05:03 PM, Pankaj Bansal wrote: >>> Till now the flexcan module supported 8 byte payload size as per CAN >>> 2.0 specifications. >>> But now upcoming flexcan module in NXP LX2160A SOC supports CAN FD >>> protocol too.The Message buffers need to be configured to have payload >>> size greater than 8 bytes (if flexcan module supports it) >>> >>> Therefore, added provision in the driver for payload size to be variable. >>> BUT, limit the only possible payload value to be 8, because the CAN FD >>> changes are not in place yet. >> >> What's the size of a CAN-FD mailbox? Is it fixed or configurable at runtime? > > Flexible mailboxes configurable to store 0 to 8, 16, 32 or 64 bytes data length Does it make any sense to store less than 64 bytes of data? What's the total size of the mailbox then? Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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