Re: Relationship between Rx/Tx ring and Skbuff.
From: Valdis Klētnieks <hidden>
Date: 2020-08-06 01:44:20
On Wed, 05 Aug 2020 11:34:52 -0700, Vasu M said:
it on a high level, when a packet is received in a NIC, DMA moves the packets from the NIC frame buffer into the RX ring buffer in the driver. A hardware interrupt is then raised and the top half moves the packet to the RX ring buffer.
Umm... I would expect the packet to be moved to the RX ring buffer exactly once, not twice...