Re: [PATCH net-next v2 08/14] net: ethernet: qualcomm: Initialize PPE service code settings

[Simon Horman <horms@kernel.org>]

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@quicinc.com>

...

> 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);
> +};

...