[net] ice: fix choosing udp header type

From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>

In tunnels packet there can be two UDP headers:
- outer which for hw should be mark as ICE_UDP_OF
- inner which for hw should be mark as ICE_UDP_ILOS or as ICE_TCP_IL if
  inner header is of TCP type

In none tunnels packet header can be:
- UDP, which for hw should be mark as ICE_UDP_ILOS
- TCP, which for hw should be mark as ICE_TCP_IL

Change incorrect ICE_UDP_OF for none tunnel packets to ICE_UDP_ILOS.
ICE_UDP_OF is incorrect for none tunnel packets and setting it leads to
error from hw while adding this kind of recipe.

In summary, for tunnel outer port type should always be set to
ICE_UDP_OF, for none tunnel outer and tunnel inner it should always be
set to ICE_UDP_ILOS.

Fixes: 9e300987d4a81 ("ice: VXLAN and Geneve TC support")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
---
 drivers/net/ethernet/intel/ice/ice_tc_lib.c | 26 ++++++++-------------
 1 file changed, 10 insertions(+), 16 deletions(-)

On Tue, Nov 16, 2021 at 10:36:15AM +0100, Michal Swiatkowski wrote:
> From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> 
> In tunnels packet there can be two UDP headers:
> - outer which for hw should be mark as ICE_UDP_OF
> - inner which for hw should be mark as ICE_UDP_ILOS or as ICE_TCP_IL if
>   inner header is of TCP type
> 
> In none tunnels packet header can be:
> - UDP, which for hw should be mark as ICE_UDP_ILOS
> - TCP, which for hw should be mark as ICE_TCP_IL
> 
> Change incorrect ICE_UDP_OF for none tunnel packets to ICE_UDP_ILOS.
> ICE_UDP_OF is incorrect for none tunnel packets and setting it leads to
> error from hw while adding this kind of recipe.
> 
> In summary, for tunnel outer port type should always be set to
> ICE_UDP_OF, for none tunnel outer and tunnel inner it should always be
> set to ICE_UDP_ILOS.
> 
> Fixes: 9e300987d4a81 ("ice: VXLAN and Geneve TC support")
> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_tc_lib.c | 26 ++++++++-------------
>  1 file changed, 10 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> index 4e1dac813339..29fe359a5598 100644
> --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
> @@ -78,20 +78,13 @@ ice_proto_type_from_ipv6(bool inner)
>  }
>  
>  static enum ice_protocol_type
> -ice_proto_type_from_l4_port(bool inner, u16 ip_proto)
> +ice_proto_type_from_l4_port(u16 ip_proto)
>  {
> -	if (inner) {
> -		switch (ip_proto) {
> -		case IPPROTO_UDP:
> -			return ICE_UDP_ILOS;
> -		}
> -	} else {
> -		switch (ip_proto) {
> -		case IPPROTO_TCP:
> -			return ICE_TCP_IL;
> -		case IPPROTO_UDP:
> -			return ICE_UDP_OF;
> -		}
> +	switch (ip_proto) {
> +	case IPPROTO_TCP:
> +		return ICE_TCP_IL;
> +	case IPPROTO_UDP:
> +		return ICE_UDP_ILOS;
>  	}
>  
>  	return 0;
> @@ -194,8 +187,9 @@ ice_tc_fill_tunnel_outer(u32 flags, struct ice_tc_flower_fltr *fltr,
>  		i++;
>  	}
>  
> -	if (flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT) {
> -		list[i].type = ice_proto_type_from_l4_port(false, hdr->l3_key.ip_proto);
> +	if ((flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT) &&
> +	    hdr->l3_key.ip_proto == IPPROTO_UDP) {
> +		list[i].type = ICE_UDP_OF;
>  		list[i].h_u.l4_hdr.dst_port = hdr->l4_key.dst_port;
>  		list[i].m_u.l4_hdr.dst_port = hdr->l4_mask.dst_port;
>  		i++;
> @@ -320,7 +314,7 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
>  		     ICE_TC_FLWR_FIELD_SRC_L4_PORT)) {
>  		struct ice_tc_l4_hdr *l4_key, *l4_mask;
>  
> -		list[i].type = ice_proto_type_from_l4_port(inner, headers->l3_key.ip_proto);
> +		list[i].type = ice_proto_type_from_l4_port(headers->l3_key.ip_proto);
>  		l4_key = &headers->l4_key;
>  		l4_mask = &headers->l4_mask;
>  
> -- 
> 2.31.1
> 

Please ignore it, I sent it from wrong mail, sorry.
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