net: ena: introduce ndo_xdp_xmit() function for XDP_REDIRECT

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This patch implements the ndo_xdp_xmit() net_device function which is
called when a packet is redirected to this driver using an
XDP_REDIRECT directive.

The function receives an array of xdp frames that it needs to xmit.
The TX queues that are used to xmit these frames are the XDP
queues used by the XDP_TX flow. Therefore a lock is added to synchronize
both flows (XDP_TX and XDP_REDIRECT).

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Shay Agroskin 2020-12-08 20:02:08 +02:00 • committed by Jakub Kicinski

parent f8b91f255a

commit f1a2558913

2 changed files with 72 additions and 12 deletions

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83

drivers/net/ethernet/amazon/ena/ena_netdev.c

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1

drivers/net/ethernet/amazon/ena/ena_netdev.h

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