On Wed, Jan 08, 2025 at 09:47:15PM +0800, Luo Jie wrote:
> PPE service code is a special code (0-255) that is defined by PPE for
> PPE's packet processing stages, as per the network functions required
> for the packet.
>
> For packet being sent out by ARM cores on Ethernet ports, The service
> code 1 is used as the default service code. This service code is used
> to bypass most of packet processing stages of the PPE before the packet
> transmitted out PPE port, since the software network stack has already
> processed the packet.
>
> Signed-off-by: Luo Jie <quic_luoj@xxxxxxxxxxx>
...
> diff --git a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
...
> +/**
> + * struct ppe_sc_bypss - PPE service bypass bitmaps
nit: struct ppe_sc_bypass
> + * @ingress: Bitmap of features that can be bypassed on the ingress packet.
> + * @egress: Bitmap of features that can be bypassed on the egress packet.
> + * @counter: Bitmap of features that can be bypassed on the counter type.
> + * @tunnel: Bitmap of features that can be bypassed on the tunnel packet.
> + */
> +struct ppe_sc_bypass {
> + DECLARE_BITMAP(ingress, PPE_SC_BYPASS_INGRESS_SIZE);
> + DECLARE_BITMAP(egress, PPE_SC_BYPASS_EGRESS_SIZE);
> + DECLARE_BITMAP(counter, PPE_SC_BYPASS_COUNTER_SIZE);
> + DECLARE_BITMAP(tunnel, PPE_SC_BYPASS_TUNNEL_SIZE);
> +};
...
