[Intel-wired-lan] [PATCH S48 v6 06/16] ice: Enhanced IPv4 and IPv6 flow filter

Qi Zhang qi.z.zhang at intel.com
Thu Jul 16 13:39:28 UTC 2020


Separate IPv4 and IPv6 ptype bit mask table into 2 tables:
With or without L4 protocols.

When a flow filter without any l4 type is specified, the
ICE_FLOW_SEG_HDR_IPV_OTHER flag can be used to describe if user
want to create a IP rule target for all IP packet or just IP
packet without l4 header.

Signed-off-by: Dan Nowlin <dan.nowlin at intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/net/ethernet/intel/ice/ice_flow.c | 111 ++++++++++++++++++++++++++++--
 drivers/net/ethernet/intel/ice/ice_flow.h |   4 ++
 2 files changed, 111 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c
index 4571e2c2cb29..2d4c4732fda6 100644
--- a/drivers/net/ethernet/intel/ice/ice_flow.c
+++ b/drivers/net/ethernet/intel/ice/ice_flow.c
@@ -156,7 +156,9 @@ static const u32 ice_ptypes_macvlan_il[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
 
-/* Packet types for packets with an Outer/First/Single IPv4 header */
+/* Packet types for packets with an Outer/First/Single IPv4 header, does NOT
+ * include IPV4 other PTYPEs
+ */
 static const u32 ice_ptypes_ipv4_ofos[] = {
 	0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
 	0x00000000, 0x00000155, 0x00000000, 0x00000000,
@@ -166,6 +168,18 @@ static const u32 ice_ptypes_ipv4_ofos[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
+/* Packet types for packets with an Outer/First/Single IPv4 header, includes
+ * IPV4 other PTYPEs
+ */
+static const u32 ice_ptypes_ipv4_ofos_all[] = {
+	0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
+	0x00000000, 0x00000155, 0x00000000, 0x00000000,
+	0x00000000, 0x000FC000, 0x83E0F800, 0x00000101,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
@@ -182,7 +196,9 @@ static const u32 ice_ptypes_ipv4_il[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
 
-/* Packet types for packets with an Outer/First/Single IPv6 header */
+/* Packet types for packets with an Outer/First/Single IPv6 header, does NOT
+ * include IVP6 other PTYPEs
+ */
 static const u32 ice_ptypes_ipv6_ofos[] = {
 	0x00000000, 0x00000000, 0x77000000, 0x10002000,
 	0x00000000, 0x000002AA, 0x00000000, 0x00000000,
@@ -192,6 +208,18 @@ static const u32 ice_ptypes_ipv6_ofos[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
+/* Packet types for packets with an Outer/First/Single IPv6 header, includes
+ * IPV6 other PTYPEs
+ */
+static const u32 ice_ptypes_ipv6_ofos_all[] = {
+	0x00000000, 0x00000000, 0x77000000, 0x10002000,
+	0x00000000, 0x000002AA, 0x00000000, 0x00000000,
+	0x00080F00, 0x03F00000, 0x7C1F0000, 0x00000206,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
@@ -208,6 +236,54 @@ static const u32 ice_ptypes_ipv6_il[] = {
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
 };
 
+/* Packet types for packets with an Outer/First/Single IPv4 header - no L4 */
+static const u32 ice_ipv4_ofos_no_l4[] = {
+	0x10C00000, 0x04000800, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
+/* Packet types for packets with an Innermost/Last IPv4 header - no L4 */
+static const u32 ice_ipv4_il_no_l4[] = {
+	0x60000000, 0x18043008, 0x80000002, 0x6010c021,
+	0x00000008, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
+/* Packet types for packets with an Outer/First/Single IPv6 header - no L4 */
+static const u32 ice_ipv6_ofos_no_l4[] = {
+	0x00000000, 0x00000000, 0x43000000, 0x10002000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
+/* Packet types for packets with an Innermost/Last IPv6 header - no L4 */
+static const u32 ice_ipv6_il_no_l4[] = {
+	0x00000000, 0x02180430, 0x0000010c, 0x086010c0,
+	0x00000430, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000, 0x00000000,
+};
+
 /* Packet types for packets with an Outermost/First ARP header */
 static const u32 ice_ptypes_arp_of[] = {
 	0x00000800, 0x00000000, 0x00000000, 0x00000000,
@@ -552,6 +628,9 @@ struct ice_flow_prof_params {
 #define ICE_FLOW_SEG_HDRS_L4_MASK	\
 	(ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
 	 ICE_FLOW_SEG_HDR_SCTP)
+/* mask for L4 protocols that are NOT part of IPV4/6 OTHER PTYPE groups */
+#define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER	\
+	(ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
 
 /**
  * ice_flow_val_hdrs - validates packet segments for valid protocol headers
@@ -668,11 +747,35 @@ ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
 				   ICE_FLOW_PTYPE_MAX);
 		}
 
-		if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
+		if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
+		    (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
+			src = i ? (const unsigned long *)ice_ptypes_ipv4_il :
+				(const unsigned long *)ice_ptypes_ipv4_ofos_all;
+			bitmap_and(params->ptypes, params->ptypes, src,
+				   ICE_FLOW_PTYPE_MAX);
+		} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
+			   (hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
+			src = i ? (const unsigned long *)ice_ptypes_ipv6_il :
+				(const unsigned long *)ice_ptypes_ipv6_ofos_all;
+			bitmap_and(params->ptypes, params->ptypes, src,
+				   ICE_FLOW_PTYPE_MAX);
+		} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
+			   !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
+			src = !i ? (const unsigned long *)ice_ipv4_ofos_no_l4 :
+				(const unsigned long *)ice_ipv4_il_no_l4;
+			bitmap_and(params->ptypes, params->ptypes, src,
+				   ICE_FLOW_PTYPE_MAX);
+		} else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
 			src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos :
 				(const unsigned long *)ice_ptypes_ipv4_il;
 			bitmap_and(params->ptypes, params->ptypes, src,
 				   ICE_FLOW_PTYPE_MAX);
+		} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
+			   !(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
+			src = !i ? (const unsigned long *)ice_ipv6_ofos_no_l4 :
+				(const unsigned long *)ice_ipv6_il_no_l4;
+			bitmap_and(params->ptypes, params->ptypes, src,
+				   ICE_FLOW_PTYPE_MAX);
 		} else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
 			src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos :
 				(const unsigned long *)ice_ptypes_ipv6_il;
@@ -1758,7 +1861,7 @@ ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
 	ICE_FLOW_SET_HDRS(segs, flow_hdr);
 
 	if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS &
-	    ~ICE_FLOW_RSS_HDRS_INNER_MASK)
+	    ~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER)
 		return ICE_ERR_PARAM;
 
 	val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethernet/intel/ice/ice_flow.h
index f91b96f163c4..30b493bc2f63 100644
--- a/drivers/net/ethernet/intel/ice/ice_flow.h
+++ b/drivers/net/ethernet/intel/ice/ice_flow.h
@@ -135,6 +135,10 @@ enum ice_flow_seg_hdr {
 	ICE_FLOW_SEG_HDR_ESP		= 0x00100000,
 	ICE_FLOW_SEG_HDR_AH		= 0x00200000,
 	ICE_FLOW_SEG_HDR_NAT_T_ESP	= 0x00400000,
+	/* The following is an additive bit for ICE_FLOW_SEG_HDR_IPV4 and
+	 * ICE_FLOW_SEG_HDR_IPV6 which include the IPV4 other PTYPEs
+	 */
+	ICE_FLOW_SEG_HDR_IPV_OTHER      = 0x20000000,
 };
 
 /* These segments all have the same PTYPES, but are otherwise distinguished by
-- 
2.13.6



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