Re: [PATCH V12 net-next 07/10] net: hibmcge: Implement rx_poll function to receive packets
From: Jijie Shao <shaojijie@huawei.com>
Date: 2024-10-15 12:06:03
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on 2024/10/15 19:57, Paolo Abeni wrote:
On 10/15/24 13:41, Jijie Shao wrote:quoted
on 2024/10/15 18:28, Paolo Abeni wrote:quoted
Side note: the above always uses the maximum MTU for the packet size, if the device supports jumbo frames (8Kb size packets), it will produce quite bad layout for the incoming packets... Is the device able to use multiple buffers for the incoming packets?In fact, jumbo frames are not supported in device, and the maximum MTU is 4Kb.FTR, even 4Kb is bad enough: tiny packets (tcp syn, UDP dns req) will use a truesize above 5K. You can get a much better the layout using copybreak. Cheers, Paolo
Sorry, Actually 4KB。the default mtu is 1500