[dpdk-dev] [PATCH v3] ether: use a default for max Rx frame size in configure()

[Andriy Berestovskyy]

Hey Bruce,

On 07.04.2017 14:29, Bruce Richardson wrote:
> Is this entirely hidden from drivers? As I said previously, I believe
> NICs using ixgbe/i40e etc. only use the frame size value when the jumbo
> frame flag is set. That may lead to further inconsistent behaviour unless
> all NICs are set up to behave as expected too.

You are right. If we take just Intel PMDs: some use the max_rx_pkt_len 
only for jumbo frames (ixgbe), some always (i40) and some never (fm10k).

What if we add to the max_rx_pkt_len description: "the effective maximum 
RX frame size depends on PMD, please refer the PMD guide for the details"?

So with this patch we make rte_eth_dev_configure() clear and later PMDs 
might change or clarify their limitations in the NIC guides.

Andriy