[PATCH] net/af_packet: add explicit flush for Tx

[Stephen Hemminger]

On Thu, 15 Aug 2024 13:56:53 +0200
<vignesh.purushotham.srinivas at ericsson.com> wrote:

> From: Vignesh PS <vignesh.purushotham.srinivas at ericsson.com>
> 
> af_packet PMD uses system calls to transmit packets. Separate the
> transmit function into two different calls so its possible to avoid
> syscalls during transmit.
> 
> Signed-off-by: Vignesh PS <vignesh.purushotham.srinivas at ericsson.com>

The way to avoid syscalls is for the application to call tx_burst with
more than one packet. This patch makes the AF_PACKET PMD behave different
than other PMD's; that is a bad idea.

If this optimization is really necessary it should be setup and tuned
via existing eth_tx_conf like tx_threshold.


The wording of the description is awkward and not written in user focused
imperative language; also has spelling errors.