ice: Support to separate GTP-U uplink and downlink

To apply different input set for GTP-U packet with or without extend
header as well as GTP-U uplink and downlink, we need to add TCAM mask
matching capability. This allows comprehending different PTYPE
attributes by examining flags from the parser. Using this method,
different profiles can be used by examining flag values from the parser.

Signed-off-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Tested-by: Chen Bo <BoX.C.Chen@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 87 insertions, 1 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c
index fddf5c24930b..5e8e0808a9b2 100644
--- a/drivers/net/ethernet/intel/ice/ice_flow.c
+++ b/drivers/net/ethernet/intel/ice/ice_flow.c
@@ -379,6 +379,76 @@ static const u32 ice_ptypes_gtpc_tid[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
 
+/* Packet types for GTPU */
+static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = {
+	{ ICE_MAC_IPV4_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_PDU_EH },
+	{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_PDU_EH },
+};
+
+static const struct ice_ptype_attributes ice_attr_gtpu_down[] = {
+	{ ICE_MAC_IPV4_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_DOWNLINK },
+};
+
+static const struct ice_ptype_attributes ice_attr_gtpu_up[] = {
+	{ ICE_MAC_IPV4_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_FRAG,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_PAY,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_TCP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV4_ICMP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_FRAG,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_PAY,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_TCP,	  ICE_PTYPE_ATTR_GTP_UPLINK },
+	{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6,  ICE_PTYPE_ATTR_GTP_UPLINK },
+};
+
 static const u32 ice_ptypes_gtpu[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -485,6 +555,9 @@ struct ice_flow_prof_params {
 	 * This will give us the direction flags.
 	 */
 	struct ice_fv_word es[ICE_MAX_FV_WORDS];
+	/* attributes can be used to add attributes to a particular PTYPE */
+	const struct ice_ptype_attributes *attr;
+	u16 attr_cnt;
 
 	u16 mask[ICE_MAX_FV_WORDS];
 	DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX);
@@ -690,14 +763,26 @@ ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
 			src = (const unsigned long *)ice_ptypes_gtpu;
 			bitmap_and(params->ptypes, params->ptypes, src,
 				   ICE_FLOW_PTYPE_MAX);
+
+			/* Attributes for GTP packet with downlink */
+			params->attr = ice_attr_gtpu_down;
+			params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down);
 		} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP) {
 			src = (const unsigned long *)ice_ptypes_gtpu;
 			bitmap_and(params->ptypes, params->ptypes, src,
 				   ICE_FLOW_PTYPE_MAX);
+
+			/* Attributes for GTP packet with uplink */
+			params->attr = ice_attr_gtpu_up;
+			params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up);
 		} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH) {
 			src = (const unsigned long *)ice_ptypes_gtpu;
 			bitmap_and(params->ptypes, params->ptypes, src,
 				   ICE_FLOW_PTYPE_MAX);
+
+			/* Attributes for GTP packet with Extension Header */
+			params->attr = ice_attr_gtpu_eh;
+			params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_eh);
 		} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) {
 			src = (const unsigned long *)ice_ptypes_gtpu;
 			bitmap_and(params->ptypes, params->ptypes, src,
@@ -1260,7 +1345,8 @@ ice_flow_add_prof_sync(struct ice_hw *hw, enum ice_block blk,
 
 	/* Add a HW profile for this flow profile */
 	status = ice_add_prof(hw, blk, prof_id, (u8 *)params->ptypes,
-			      params->es, params->mask);
+			      params->attr, params->attr_cnt, params->es,
+			      params->mask);
 	if (status) {
 		ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
 		goto out;