diff options
| author | Shay Agroskin <shayagr@amazon.com> | 2020-12-08 20:02:06 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-12-09 15:26:40 -0800 |
| commit | a318c70ad152b24f92870dfe5d93b7675498c68f (patch) | |
| tree | fdb57a1414a09c49fcb780e773c28c62d24104d7 /drivers/net/ethernet/amazon/ena/ena_ethtool.c | |
| parent | e8223eeff021bc0f348efa10781119d23a68cf04 (diff) | |
net: ena: introduce XDP redirect implementation
This patch adds a partial support for the XDP_REDIRECT directive which
instructs the driver to pass the packet to an interface specified by the
program. The directive is passed to the driver by calling bpf_redirect()
or bpf_redirect_map() functions from the eBPF program.
To lay the ground for integration with the existing XDP TX
implementation the patch removes the redundant page ref count increase
in ena_xdp_xmit_frame() and then decrease in ena_clean_rx_irq(). Instead
it only DMA unmaps descriptors for which XDP TX or REDIRECT directive
was received.
The XDP Redirect support is still missing .ndo_xdp_xmit function
implementation, which allows to redirect packet to an ENA interface,
which would be added in a later patch.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_ethtool.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index 2ad44ae74cf6..d6cc7aa612b7 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -95,6 +95,7 @@ static const struct ena_stats ena_stats_rx_strings[] = { ENA_STAT_RX_ENTRY(xdp_pass), ENA_STAT_RX_ENTRY(xdp_tx), ENA_STAT_RX_ENTRY(xdp_invalid), + ENA_STAT_RX_ENTRY(xdp_redirect), }; static const struct ena_stats ena_stats_ena_com_strings[] = { |