Relationship between Rx/Tx ring and Skbuff.

Valdis Kl=?utf-8?Q?=c4=93?=tnieks valdis.kletnieks at vt.edu
Wed Aug 5 21:43:36 EDT 2020


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...
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