linux-generic: classification initial implementation

The following features are implemented in this classification implementation:
* Attaches PMR, PMR_SET to a Pktio entry
* Adds classifier object to pktio entry
* Attaches CoS values for L2 and L3 QoS to a Pktio entry
* Selects ClassOfService for a packet based on PMR, L2 QoS and L3 QoS values
* Selects a default CoS if packet does not match any of the assigned rules
* Selects an Error CoS for an Error packet
* Enqueues the packet to the queue associated with the selected CoS

Signed-off-by: Balasubramanian Manoharan <bala.manoharan@linaro.org>
Reviewed-by: Bill Fischofer <bill.fischofer@linaro.org>
Reviewed-by: Ciprian Barbu <ciprian.barbu@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>

11 files changed, 1492 insertions, 99 deletions

diff --git a/platform/linux-generic/include/api/odp.h b/platform/linux-generic/include/api/odp.h
index 6e4f69e51..b7b1ca996 100644
--- a/platform/linux-generic/include/api/odp.h
+++ b/platform/linux-generic/include/api/odp.h
@@ -47,6 +47,7 @@ extern "C" {
 #include <odp_packet_flags.h>
 #include <odp_packet_io.h>
 #include <odp_crypto.h>
+#include <odp_classification.h>
 #include <odp_rwlock.h>
 
 #ifdef __cplusplus
diff --git a/platform/linux-generic/include/odp_buffer_pool_internal.h b/platform/linux-generic/include/odp_buffer_pool_internal.h
index e0210bdd2..07602feb9 100644
--- a/platform/linux-generic/include/odp_buffer_pool_internal.h
+++ b/platform/linux-generic/include/odp_buffer_pool_internal.h
@@ -22,6 +22,7 @@ extern "C" {
 #include <odp_buffer_pool.h>
 #include <odp_buffer_internal.h>
 #include <odp_align.h>
+#include <odp_align_internal.h>
 #include <odp_hints.h>
 #include <odp_config.h>
 #include <odp_debug.h>
@@ -64,6 +65,10 @@ struct pool_entry_s {
 	size_t                  hdr_size;
 };
 
+typedef union pool_entry_u {
+	struct pool_entry_s s;
+	uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pool_entry_s))];
+} pool_entry_t;
 
 extern void *pool_entry_ptr[];
 
@@ -73,6 +78,10 @@ static inline void *get_pool_entry(uint32_t pool_id)
 	return pool_entry_ptr[pool_id];
 }
 
+static inline uint32_t pool_handle_to_index(odp_buffer_pool_t pool_hdl)
+{
+	return pool_hdl - 1;
+}
 
 static inline odp_buffer_hdr_t *odp_buf_to_hdr(odp_buffer_t buf)
 {
diff --git a/platform/linux-generic/include/odp_classification_datamodel.h b/platform/linux-generic/include/odp_classification_datamodel.h
new file mode 100644
index 000000000..18846bc2e
--- /dev/null
+++ b/platform/linux-generic/include/odp_classification_datamodel.h
@@ -0,0 +1,201 @@
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+
+/**
+ * @file
+ *
+ * ODP Classification Datamodel
+ * Describes the classification internal data model
+ */
+
+#ifndef ODP_CLASSIFICATION_DATAMODEL_H_
+#define ODP_CLASSIFICATION_DATAMODEL_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp_spinlock.h>
+#include <odp_classification.h>
+#include <odp_buffer_pool_internal.h>
+#include <odp_packet_internal.h>
+#include <odp_packet_io_internal.h>
+#include <odp_queue_internal.h>
+
+/* Maximum Class Of Service Entry */
+#define ODP_COS_MAX_ENTRY		64
+/* Maximum PMR Set Entry */
+#define ODP_PMRSET_MAX_ENTRY		64
+/* Maximum PMR Entry */
+#define ODP_PMR_MAX_ENTRY		64
+/* Maximum PMR Terms in a PMR Set */
+#define ODP_PMRTERM_MAX			8
+/* Maximum PMRs attached in PKTIO Level */
+#define ODP_PKTIO_MAX_PMR		8
+/* L2 Priority Bits */
+#define ODP_COS_L2_QOS_BITS		3
+/* Max L2 QoS value */
+#define ODP_COS_MAX_L2_QOS		(1 << ODP_COS_L2_QOS_BITS)
+/* L2 DSCP Bits */
+#define ODP_COS_L3_QOS_BITS		6
+/* Max L3 QoS Value */
+#define ODP_COS_MAX_L3_QOS		(1 << ODP_COS_L3_QOS_BITS)
+/* Max PMR Term bits */
+#define ODP_PMR_TERM_BYTES_MAX		8
+
+/* forward declaration */
+typedef union pmr_u pmr_t;
+
+/**
+Packet Matching Rule Term Value
+
+Stores the Term and Value mapping for a PMR.
+The maximum size of value currently supported in 64 bits
+**/
+typedef struct pmr_term_value {
+	odp_pmr_match_type_e match_type; /**< Packet Match Type*/
+	odp_pmr_term_e  term;		/* PMR Term */
+	union {
+		struct {
+			uint64_t	val;
+			uint64_t	mask;
+		} mask; /**< Match a masked set of bits */
+		struct {
+			uint64_t	val1;
+			uint64_t	val2;
+		} range; /**< Match an integer range */
+	};
+} pmr_term_value_t;
+
+typedef union cos_u cos_t;
+/*
+Class Of Service
+*/
+struct cos_s {
+	queue_entry_t *queue;		/* Associated Queue */
+	pool_entry_t *pool;		/* Associated Buffer pool */
+	pmr_t *pmr;			/* Chained PMR */
+	cos_t *linked_cos;		/* CoS linked with the PMR */
+	uint32_t valid;			/* validity Flag */
+	odp_drop_e drop_policy;		/* Associated Drop Policy */
+	odp_queue_group_t queue_group;	/* Associated Queue Group */
+	odp_cos_flow_set_t flow_set;	/* Assigned Flow Set */
+	char name[ODP_COS_NAME_LEN];	/* name */
+	size_t headroom;		/* Headroom for this CoS */
+	odp_spinlock_t lock;		/* cos lock */
+};
+
+typedef union cos_u {
+	struct cos_s s;
+	uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct cos_s))];
+} cos_t;
+
+
+/**
+Packet Matching Rule
+
+**/
+struct pmr_s {
+	uint32_t valid;			/* Validity Flag */
+	odp_atomic_u32_t count;		/* num of packets matching this rule */
+	uint32_t num_pmr;		/* num of PMR Term Values*/
+	odp_spinlock_t lock;		/* pmr lock*/
+	pmr_term_value_t  pmr_term_value[1];	/* Associated PMR Term */
+};
+
+typedef union pmr_u {
+	struct pmr_s s;
+	uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pmr_s))];
+} pmr_t;
+
+/**
+Packet Matching Rule Set
+
+This structure is implemented as a extension over struct pmr_s
+In order to use same pointer to access both pmr_s and pmr_set_s
+'num_pmr' value is used to differentiate between pmr_s and pmr_set_s struct
+**/
+struct pmr_set_s {
+	pmr_t pmr;
+	pmr_term_value_t  pmr_term_value[ODP_PMRTERM_MAX - 1];
+			/* List of associated PMR Terms */
+};
+
+typedef union pmr_set_u {
+	struct pmr_set_s s;
+	uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pmr_set_s))];
+} pmr_set_t;
+
+/**
+L2 QoS and CoS Map
+
+This structure holds the mapping between L2 QoS value and
+corresponding cos_t object
+**/
+typedef struct pmr_l2_cos {
+	odp_spinlock_t lock;	/* pmr_l2_cos lock */
+	cos_t *cos[ODP_COS_MAX_L2_QOS];	/* Array of CoS objects */
+} pmr_l2_cos_t;
+
+/**
+L3 QoS and CoS Map
+
+This structure holds the mapping between L3 QoS value and
+corresponding cos_t object
+**/
+typedef struct pmr_l3_cos {
+	odp_spinlock_t lock;	/* pmr_l3_cos lock */
+	cos_t *cos[ODP_COS_MAX_L3_QOS];	/* Array of CoS objects */
+} pmr_l3_cos_t;
+
+/**
+Linux Generic Classifier
+
+This structure is stored in pktio_entry and holds all
+the classifier configuration value.
+**/
+typedef struct classifier {
+	odp_spinlock_t lock;		/*pktio_cos lock */
+	uint32_t num_pmr;		/* num of PMRs linked to given PKTIO*/
+	pmr_t *pmr[ODP_PKTIO_MAX_PMR];	/* PMRs linked with this PKTIO */
+	cos_t *cos[ODP_PKTIO_MAX_PMR];	/* CoS linked with this PKTIO */
+	cos_t *error_cos;		/* Associated Error CoS */
+	cos_t *default_cos;		/* Associated Default CoS */
+	uint32_t l3_precedence;		/* L3 QoS precedence */
+	pmr_l2_cos_t l2_cos_table;	/* L2 QoS-CoS table map */
+	pmr_l3_cos_t l3_cos_table;	/* L3 Qos-CoS table map */
+	odp_cos_flow_set_t flow_set;	/* Flow Set to be calculated
+					for this pktio */
+	size_t headroom;		/* Pktio Headroom */
+	size_t skip;			/* Pktio Skip Offset */
+} classifier_t;
+
+/**
+Class of Service Table
+**/
+typedef struct odp_cos_table {
+	cos_t cos_entry[ODP_COS_MAX_ENTRY];
+} cos_tbl_t;
+
+/**
+PMR set table
+**/
+typedef struct pmr_set_tbl {
+	pmr_set_t pmr_set[ODP_PMRSET_MAX_ENTRY];
+} pmr_set_tbl_t;
+
+/**
+PMR table
+**/
+typedef struct pmr_tbl {
+	pmr_t pmr[ODP_PMR_MAX_ENTRY];
+} pmr_tbl_t;
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/platform/linux-generic/include/odp_classification_inlines.h b/platform/linux-generic/include/odp_classification_inlines.h
new file mode 100644
index 000000000..6b2011972
--- /dev/null
+++ b/platform/linux-generic/include/odp_classification_inlines.h
@@ -0,0 +1,259 @@
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+
+/**
+ * @file
+ *
+ * ODP Classification Inlines
+ * Classification Inlines Functions
+ */
+#ifndef __ODP_CLASSIFICATION_INLINES_H_
+#define __ODP_CLASSIFICATION_INLINES_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp_debug.h>
+#include <odph_eth.h>
+#include <odph_ip.h>
+#include <odph_udp.h>
+#include <odph_tcp.h>
+
+/* PMR term value verification function
+These functions verify the given PMR term value with the value in the packet
+These following functions return 1 on success and 0 on failure
+*/
+
+static inline int verify_pmr_packet_len(odp_packet_hdr_t *pkt_hdr,
+					pmr_term_value_t *term_value)
+{
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (pkt_hdr->frame_len &
+		    term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= pkt_hdr->frame_len) &&
+		    (pkt_hdr->frame_len <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+static inline int verify_pmr_ip_proto(uint8_t *pkt_addr,
+				      odp_packet_hdr_t *pkt_hdr,
+				      pmr_term_value_t *term_value)
+{
+	odph_ipv4hdr_t *ip;
+	uint8_t proto;
+	if (!pkt_hdr->input_flags.ipv4)
+		return 0;
+	ip = (odph_ipv4hdr_t *)(pkt_addr + pkt_hdr->l3_offset);
+	proto = ip->proto;
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (proto & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= proto) &&
+		    (proto <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_ipv4_saddr(uint8_t *pkt_addr,
+					odp_packet_hdr_t *pkt_hdr,
+					pmr_term_value_t *term_value)
+{
+	odph_ipv4hdr_t *ip;
+	uint32_t ipaddr;
+	if (!pkt_hdr->input_flags.ipv4)
+		return 0;
+	ip = (odph_ipv4hdr_t *)(pkt_addr + pkt_hdr->l3_offset);
+	ipaddr = odp_be_to_cpu_32(ip->src_addr);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (ipaddr & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= ipaddr) &&
+		    (ipaddr <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_ipv4_daddr(uint8_t *pkt_addr,
+					odp_packet_hdr_t *pkt_hdr,
+					pmr_term_value_t *term_value)
+{
+	odph_ipv4hdr_t *ip;
+	uint32_t ipaddr;
+	if (!pkt_hdr->input_flags.ipv4)
+		return 0;
+	ip = (odph_ipv4hdr_t *)(pkt_addr + pkt_hdr->l3_offset);
+	ipaddr = odp_be_to_cpu_32(ip->dst_addr);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (ipaddr & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= ipaddr) &&
+		    (ipaddr <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_tcp_sport(uint8_t *pkt_addr,
+				       odp_packet_hdr_t *pkt_hdr,
+				       pmr_term_value_t *term_value)
+{
+	uint16_t sport;
+	odph_tcphdr_t *tcp;
+	if (!pkt_hdr->input_flags.tcp)
+		return 0;
+	tcp = (odph_tcphdr_t *)(pkt_addr + pkt_hdr->l4_offset);
+	sport = odp_be_to_cpu_16(tcp->src_port);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (sport & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= sport) &&
+		    (sport <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_tcp_dport(uint8_t *pkt_addr,
+				       odp_packet_hdr_t *pkt_hdr,
+				       pmr_term_value_t *term_value)
+{
+	uint16_t dport;
+	odph_tcphdr_t *tcp;
+	if (!pkt_hdr->input_flags.tcp)
+		return 0;
+	tcp = (odph_tcphdr_t *)(pkt_addr + pkt_hdr->l4_offset);
+	dport = odp_be_to_cpu_16(tcp->dst_port);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (dport & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= dport) &&
+		    (dport <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_udp_dport(uint8_t *pkt_addr,
+				       odp_packet_hdr_t *pkt_hdr,
+				       pmr_term_value_t *term_value)
+{
+	uint16_t dport;
+	odph_udphdr_t *udp;
+	if (!pkt_hdr->input_flags.udp)
+		return 0;
+	udp = (odph_udphdr_t *)(pkt_addr + pkt_hdr->l4_offset);
+	dport = odp_be_to_cpu_16(udp->dst_port);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (dport & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= dport) &&
+		    (dport <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+static inline int verify_pmr_udp_sport(uint8_t *pkt_addr,
+				       odp_packet_hdr_t *pkt_hdr,
+				       pmr_term_value_t *term_value)
+{
+	uint16_t sport;
+	odph_udphdr_t *udp;
+	if (!pkt_hdr->input_flags.udp)
+		return 0;
+	udp = (odph_udphdr_t *)(pkt_addr + pkt_hdr->l4_offset);
+	sport = odp_be_to_cpu_16(udp->src_port);
+	if (term_value->match_type == ODP_PMR_MASK) {
+		if (term_value->mask.val == (sport & term_value->mask.mask))
+			return 1;
+	} else {
+		if ((term_value->range.val1 <= sport) &&
+		    (sport <= term_value->range.val2))
+			return 1;
+	}
+	return 0;
+}
+
+static inline int verify_pmr_dmac(uint8_t *pkt_addr ODP_UNUSED,
+				  odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+				  pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+
+static inline int verify_pmr_ipv6_saddr(uint8_t *pkt_addr ODP_UNUSED,
+					odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+					pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_ipv6_daddr(uint8_t *pkt_addr ODP_UNUSED,
+					odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+					pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_vlan_id_0(uint8_t *pkt_addr ODP_UNUSED,
+				       odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+				       pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_vlan_id_x(uint8_t *pkt_addr ODP_UNUSED,
+				       odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+				       pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_ipsec_spi(uint8_t *pkt_addr ODP_UNUSED,
+				       odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+				       pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_ld_vni(uint8_t *pkt_addr ODP_UNUSED,
+				    odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+				    pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_eth_type_0(uint8_t *pkt_addr ODP_UNUSED,
+					odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+					pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+static inline int verify_pmr_eth_type_x(uint8_t *pkt_addr ODP_UNUSED,
+					odp_packet_hdr_t *pkt_hdr ODP_UNUSED,
+					pmr_term_value_t *term_value ODP_UNUSED)
+{
+	ODP_UNIMPLEMENTED();
+	return 0;
+}
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/platform/linux-generic/include/odp_classification_internal.h b/platform/linux-generic/include/odp_classification_internal.h
new file mode 100644
index 000000000..fd2c6afbb
--- /dev/null
+++ b/platform/linux-generic/include/odp_classification_internal.h
@@ -0,0 +1,173 @@
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+
+/**
+ * @file
+ *
+ * ODP Classification Internal
+ * Describes the classification internal Functions
+ */
+
+#ifndef __ODP_CLASSIFICATION_INTERNAL_H_
+#define __ODP_CLASSIFICATION_INTERNAL_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp_classification.h>
+#include <odp_queue.h>
+#include <odp_packet_internal.h>
+#include <odp_packet_io.h>
+#include <odp_packet_io_internal.h>
+#include <odp_classification_datamodel.h>
+
+/** Classification Internal function **/
+
+/**
+@internal
+Select a CoS for the given Packet based on pktio
+
+This function will call all the PMRs associated with a pktio for
+a given packet and will return the matched COS object.
+This function will check PMR, L2 and L3 QoS COS object associated
+with the PKTIO interface.
+
+Returns the default cos if the packet does not match any PMR
+Returns the error_cos if the packet has an error
+**/
+cos_t *pktio_select_cos(pktio_entry_t *pktio, uint8_t *pkt_addr,
+		       odp_packet_hdr_t *pkt_hdr);
+
+/**
+@internal
+match_qos_cos
+
+Select a CoS for the given Packet based on QoS values
+This function returns the COS object matching the L2 and L3 QoS
+based on the l3_preference value of the pktio
+**/
+cos_t *match_qos_cos(pktio_entry_t *entry, uint8_t *pkt_addr,
+		     odp_packet_hdr_t *hdr);
+/**
+Packet Classifier
+
+Start function for Packet Classifier
+This function calls Classifier module internal functions for a given packet and
+enqueues the packet to specific Queue based on PMR and CoS selected.
+**/
+int packet_classifier(odp_pktio_t pktio, odp_packet_t pkt);
+/**
+Packet IO classifier init
+
+This function does initialization of classifier object associated with pktio.
+This function should be called during pktio initialization.
+**/
+int pktio_classifier_init(pktio_entry_t *pktio);
+
+/**
+@internal
+match_pmr_cos
+
+Match a PMR chain with a Packet and return matching CoS
+This function gets called recursively to check the chained PMR Term value
+with the packet.
+
+**/
+cos_t *match_pmr_cos(cos_t *cos, uint8_t *pkt_addr, pmr_t *pmr,
+		     odp_packet_hdr_t *hdr);
+/**
+@internal
+CoS associated with L3 QoS value
+
+This function returns the CoS associated with L3 QoS value
+**/
+cos_t *match_qos_l3_cos(pmr_l3_cos_t *l3_cos, uint8_t *pkt_addr,
+			odp_packet_hdr_t *hdr);
+
+/**
+@internal
+CoS associated with L2 QoS value
+
+This function returns the CoS associated with L2 QoS value
+**/
+cos_t *match_qos_l2_cos(pmr_l2_cos_t *l2_cos, uint8_t *pkt_addr,
+			odp_packet_hdr_t *hdr);
+/**
+@internal
+Flow Signature Calculation
+
+This function calculates the Flow Signature for a packet based on
+CoS and updates in Packet Meta Data
+**/
+int update_flow_signature(uint8_t *pkt_addr, cos_t *cos);
+
+/**
+@internal
+Allocate a odp_pmr_set_t Handle
+*/
+odp_pmr_set_t alloc_pmr_set(pmr_t **pmr);
+
+/**
+@internal
+Allocate a odp_pmr_t Handle
+*/
+odp_pmr_t alloc_pmr(pmr_t **pmr);
+
+/**
+@internal
+Pointer to pmr_set_t Handle
+This function checks for validity of pmr_set_t Handle
+*/
+pmr_set_t *get_pmr_set_entry(odp_pmr_set_t pmr_set_id);
+
+/**
+@internal
+Pointer to pmr_set_t Handle
+*/
+pmr_set_t *get_pmr_set_entry_internal(odp_pmr_set_t pmr_set_id);
+
+/**
+@internal
+Pointer to pmr_set_t Handle
+This function checks for validity of pmr_set_t Handle
+*/
+pmr_t *get_pmr_entry(odp_pmr_t pmr_id);
+
+/**
+@internal
+Pointer to pmr_set_t Handle
+*/
+pmr_t *get_pmr_entry_internal(odp_pmr_t pmr_id);
+
+/**
+@internal
+Pointer to odp_cos_t Handle
+*/
+cos_t *get_cos_entry(odp_cos_t cos_id);
+
+/**
+@internal
+Pointer to odp_cos_t Handle
+This function checks for validity of odp_cos_t Handle
+*/
+cos_t *get_cos_entry_internal(odp_cos_t cos_id);
+
+/**
+@internal
+Verify PMR with a Packet
+
+This function goes through each PMR_TERM value in pmr_t structure and
+calls verification function for each term.Returns 1 if PMR matches or 0
+Otherwise.
+**/
+int verify_pmr(pmr_t *pmr, uint8_t *pkt_addr, odp_packet_hdr_t *pkt_hdr);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/platform/linux-generic/include/odp_internal.h b/platform/linux-generic/include/odp_internal.h
index f8c159694..04c1030b3 100644
--- a/platform/linux-generic/include/odp_internal.h
+++ b/platform/linux-generic/include/odp_internal.h
@@ -32,6 +32,8 @@ int odp_buffer_pool_init_global(void);
 int odp_pktio_init_global(void);
 int odp_pktio_init_local(void);
 
+int odp_classification_init_global(void);
+
 int odp_queue_init_global(void);
 
 int odp_crypto_init_global(void);
diff --git a/platform/linux-generic/include/odp_packet_io_internal.h b/platform/linux-generic/include/odp_packet_io_internal.h
index d129f2259..465127b5c 100644
--- a/platform/linux-generic/include/odp_packet_io_internal.h
+++ b/platform/linux-generic/include/odp_packet_io_internal.h
@@ -20,6 +20,7 @@ extern "C" {
 
 #include <odp_spinlock.h>
 #include <odp_packet_socket.h>
+#include <odp_classification_datamodel.h>
 #include <odp_align_internal.h>
 
 #include <odp_config.h>
@@ -43,6 +44,7 @@ struct pktio_entry {
 	odp_pktio_type_t type;		/**< pktio type */
 	pkt_sock_t pkt_sock;		/**< using socket API for IO */
 	pkt_sock_mmap_t pkt_sock_mmap;	/**< using socket mmap API for IO */
+	classifier_t cls;		/**< classifier linked with this pktio*/
 	char name[IFNAMSIZ];		/**< name of pktio provided to
 					   pktio_open() */
 };
diff --git a/platform/linux-generic/odp_buffer_pool.c b/platform/linux-generic/odp_buffer_pool.c
index 83c51fa42..d20999b47 100644
--- a/platform/linux-generic/odp_buffer_pool.c
+++ b/platform/linux-generic/odp_buffer_pool.c
@@ -57,12 +57,6 @@ typedef struct {
 } odp_any_buffer_hdr_t;
 
 
-typedef union pool_entry_u {
-	struct pool_entry_s s;
-
-	uint8_t pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(struct pool_entry_s))];
-
-} pool_entry_t;
 
 
 typedef struct pool_table_t {
@@ -87,10 +81,6 @@ static inline odp_buffer_pool_t pool_index_to_handle(uint32_t pool_id)
 }
 
 
-static inline uint32_t pool_handle_to_index(odp_buffer_pool_t pool_hdl)
-{
-	return pool_hdl -1;
-}
 
 
 static inline void set_handle(odp_buffer_hdr_t *hdr,
diff --git a/platform/linux-generic/odp_classification.c b/platform/linux-generic/odp_classification.c
index 190d71eb5..3cb1537ee 100644
--- a/platform/linux-generic/odp_classification.c
+++ b/platform/linux-generic/odp_classification.c
@@ -1,69 +1,321 @@
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
 #include <odp_classification.h>
 #include <odp_align.h>
 #include <odp_queue.h>
 #include <odp_debug.h>
+#include <odp_internal.h>
 #include <odp_debug_internal.h>
+#include <odp_packet_internal.h>
 #include <odp_packet_io.h>
+#include <odp_packet_io_internal.h>
+#include <odp_classification_datamodel.h>
+#include <odp_classification_inlines.h>
+#include <odp_classification_internal.h>
+#include <odp_buffer_pool_internal.h>
+#include <odp_shared_memory.h>
+#include <odph_eth.h>
+#include <string.h>
+#include <odp_spinlock.h>
 
-odp_cos_t odp_cos_create(const char *name)
+#define LOCK(a)      odp_spinlock_lock(a)
+#define UNLOCK(a)    odp_spinlock_unlock(a)
+#define LOCK_INIT(a)	odp_spinlock_init(a)
+
+static cos_tbl_t *cos_tbl;
+static pmr_set_tbl_t	*pmr_set_tbl;
+static pmr_tbl_t	*pmr_tbl;
+
+cos_t *get_cos_entry_internal(odp_cos_t cos_id)
+{
+	return &(cos_tbl->cos_entry[cos_id]);
+}
+
+pmr_set_t *get_pmr_set_entry_internal(odp_pmr_set_t pmr_set_id)
+{
+	return &(pmr_set_tbl->pmr_set[pmr_set_id]);
+}
+
+pmr_t *get_pmr_entry_internal(odp_pmr_t pmr_id)
 {
-	(void) name;
-	ODP_UNIMPLEMENTED();
+	return &(pmr_tbl->pmr[pmr_id]);
+}
+
+int odp_classification_init_global(void)
+{
+	odp_shm_t cos_shm;
+	odp_shm_t pmr_shm;
+	odp_shm_t pmr_set_shm;
+	int i;
+
+	cos_shm = odp_shm_reserve("shm_odp_cos_tbl",
+			sizeof(cos_tbl_t),
+			sizeof(cos_t), 0);
+
+	if (cos_shm == ODP_SHM_INVALID) {
+		ODP_ERR("shm allocation failed for shm_odp_cos_tbl");
+		goto error;
+	}
+
+	cos_tbl = odp_shm_addr(cos_shm);
+	if (cos_tbl == NULL)
+		goto error_cos;
+
+	memset(cos_tbl, 0, sizeof(cos_tbl_t));
+	for (i = 0; i < ODP_COS_MAX_ENTRY; i++) {
+		/* init locks */
+		cos_t *cos = get_cos_entry_internal(i);
+		LOCK_INIT(&cos->s.lock);
+	}
+
+	pmr_shm = odp_shm_reserve("shm_odp_pmr_tbl",
+			sizeof(pmr_tbl_t),
+			sizeof(pmr_t), 0);
+
+	if (pmr_shm == ODP_SHM_INVALID) {
+		ODP_ERR("shm allocation failed for shm_odp_pmr_tbl");
+		goto error_cos;
+	}
+
+	pmr_tbl = odp_shm_addr(pmr_shm);
+	if (pmr_tbl == NULL)
+		goto error_pmr;
+
+	memset(pmr_tbl, 0, sizeof(pmr_tbl_t));
+	for (i = 0; i < ODP_PMR_MAX_ENTRY; i++) {
+		/* init locks */
+		pmr_t *pmr = get_pmr_entry_internal(i);
+		LOCK_INIT(&pmr->s.lock);
+	}
+
+	pmr_set_shm = odp_shm_reserve("shm_odp_pmr_set_tbl",
+			sizeof(pmr_set_tbl_t),
+			sizeof(pmr_set_t), 0);
+
+	if (pmr_set_shm == ODP_SHM_INVALID) {
+		ODP_ERR("shm allocation failed for shm_odp_pmr_set_tbl");
+		goto error_pmr;
+	}
+
+	pmr_set_tbl = odp_shm_addr(pmr_set_shm);
+	if (pmr_set_tbl == NULL)
+		goto error_pmrset;
+
+	memset(pmr_set_tbl, 0, sizeof(pmr_set_tbl_t));
+	for (i = 0; i < ODP_PMRSET_MAX_ENTRY; i++) {
+		/* init locks */
+		pmr_set_t *pmr = get_pmr_set_entry_internal(i);
+		LOCK_INIT(&pmr->s.pmr.s.lock);
+	}
+
 	return 0;
+
+error_pmrset:
+	odp_shm_free(pmr_set_shm);
+error_pmr:
+	odp_shm_free(pmr_shm);
+error_cos:
+	odp_shm_free(cos_shm);
+error:
+	return -1;
+}
+
+odp_cos_t odp_cos_create(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ODP_COS_MAX_ENTRY; i++) {
+		LOCK(&cos_tbl->cos_entry[i].s.lock);
+		if (0 == cos_tbl->cos_entry[i].s.valid) {
+			strncpy(cos_tbl->cos_entry[i].s.name, name,
+				ODP_COS_NAME_LEN - 1);
+			cos_tbl->cos_entry[i].s.name[ODP_COS_NAME_LEN - 1] = 0;
+			cos_tbl->cos_entry[i].s.pmr = NULL;
+			cos_tbl->cos_entry[i].s.linked_cos = NULL;
+			cos_tbl->cos_entry[i].s.queue = NULL;
+			cos_tbl->cos_entry[i].s.pool = NULL;
+			cos_tbl->cos_entry[i].s.flow_set = 0;
+			cos_tbl->cos_entry[i].s.headroom = 0;
+			cos_tbl->cos_entry[i].s.valid = 1;
+			UNLOCK(&cos_tbl->cos_entry[i].s.lock);
+			return (odp_cos_t)i;
+		}
+		UNLOCK(&cos_tbl->cos_entry[i].s.lock);
+	}
+	ODP_ERR("ODP_COS_MAX_ENTRY reached");
+	return ODP_COS_INVALID;
+}
+
+odp_pmr_set_t alloc_pmr_set(pmr_t **pmr)
+{
+	int i;
+
+	for (i = 0; i < ODP_PMRSET_MAX_ENTRY; i++) {
+		LOCK(&pmr_set_tbl->pmr_set[i].s.pmr.s.lock);
+		if (0 == pmr_set_tbl->pmr_set[i].s.pmr.s.valid) {
+			pmr_set_tbl->pmr_set[i].s.pmr.s.valid = 1;
+			pmr_set_tbl->pmr_set[i].s.pmr.s.num_pmr = 0;
+			*pmr = (pmr_t *)&pmr_set_tbl->pmr_set[i];
+			odp_atomic_init_u32(&pmr_set_tbl->pmr_set[i]
+					    .s.pmr.s.count, 0);
+			return (odp_pmr_set_t)i; /* return as locked */
+		}
+		UNLOCK(&pmr_set_tbl->pmr_set[i].s.pmr.s.lock);
+	}
+	ODP_ERR("ODP_PMRSET_MAX_ENTRY reached");
+	return ODP_PMR_INVAL;
+}
+
+odp_pmr_t alloc_pmr(pmr_t **pmr)
+{
+	int i;
+
+	for (i = 0; i < ODP_PMR_MAX_ENTRY; i++) {
+		LOCK(&pmr_tbl->pmr[i].s.lock);
+		if (0 == pmr_tbl->pmr[i].s.valid) {
+			pmr_tbl->pmr[i].s.valid = 1;
+			odp_atomic_init_u32(&pmr_tbl->pmr[i].s.count, 0);
+			pmr_tbl->pmr[i].s.num_pmr = 0;
+			*pmr = &pmr_tbl->pmr[i];
+			return (odp_pmr_t)i; /* return as locked */
+		}
+		UNLOCK(&pmr_tbl->pmr[i].s.lock);
+	}
+	ODP_ERR("ODP_PMR_MAX_ENTRY reached");
+	return ODP_PMR_INVAL;
+}
+
+
+cos_t *get_cos_entry(odp_cos_t cos_id)
+{
+	if (cos_id >= ODP_COS_MAX_ENTRY || cos_id == ODP_COS_INVALID)
+		return NULL;
+	if (cos_tbl->cos_entry[cos_id].s.valid == 0)
+		return NULL;
+	return &(cos_tbl->cos_entry[cos_id]);
+}
+
+
+pmr_set_t *get_pmr_set_entry(odp_pmr_set_t pmr_set_id)
+{
+	if (pmr_set_id >= ODP_PMRSET_MAX_ENTRY || pmr_set_id == ODP_PMR_INVAL)
+		return NULL;
+	if (pmr_set_tbl->pmr_set[pmr_set_id].s.pmr.s.valid == 0)
+		return NULL;
+	return &(pmr_set_tbl->pmr_set[pmr_set_id]);
+}
+
+pmr_t *get_pmr_entry(odp_pmr_t pmr_id)
+{
+	if (pmr_id >= ODP_PMR_MAX_ENTRY || pmr_id == ODP_PMR_INVAL)
+		return NULL;
+	if (pmr_tbl->pmr[pmr_id].s.valid == 0)
+		return NULL;
+	return &(pmr_tbl->pmr[pmr_id]);
 }
 
 int odp_cos_destroy(odp_cos_t cos_id)
 {
-	(void)cos_id;
-	ODP_UNIMPLEMENTED();
+	cos_t *cos = get_cos_entry(cos_id);
+	if (NULL == cos) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	cos->s.valid = 0;
 	return 0;
 }
 
 int odp_cos_set_queue(odp_cos_t cos_id, odp_queue_t queue_id)
 {
-	(void)cos_id;
-	(void)queue_id;
-	ODP_UNIMPLEMENTED();
+	cos_t *cos = get_cos_entry(cos_id);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+	/* Locking is not required as intermittent stale
+	data during CoS modification is acceptable*/
+	cos->s.queue = queue_to_qentry(queue_id);
 	return 0;
 }
 
 int odp_cos_set_drop(odp_cos_t cos_id, odp_drop_e drop_policy)
 {
-	(void)cos_id;
-	(void)drop_policy;
-	ODP_UNIMPLEMENTED();
+	cos_t *cos = get_cos_entry(cos_id);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	/*Drop policy is not supported in v1.0*/
+	cos->s.drop_policy = drop_policy;
 	return 0;
 }
 
 int odp_pktio_set_default_cos(odp_pktio_t pktio_in, odp_cos_t default_cos)
 {
-	(void)pktio_in;
-	(void)default_cos;
-	ODP_UNIMPLEMENTED();
+	pktio_entry_t *entry;
+	cos_t *cos;
+	entry = get_pktio_entry(pktio_in);
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+	cos = get_cos_entry(default_cos);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	entry->s.cls.default_cos = cos;
 	return 0;
 }
 
 int odp_pktio_set_error_cos(odp_pktio_t pktio_in, odp_cos_t error_cos)
 {
-	(void)pktio_in;
-	(void)error_cos;
-	ODP_UNIMPLEMENTED();
+	pktio_entry_t *entry;
+	cos_t *cos;
+
+	entry = get_pktio_entry(pktio_in);
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+
+	cos = get_cos_entry(error_cos);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	entry->s.cls.error_cos = cos;
 	return 0;
 }
 
 int odp_pktio_set_skip(odp_pktio_t pktio_in, size_t offset)
 {
-	(void)pktio_in;
-	(void)offset;
-	ODP_UNIMPLEMENTED();
+	pktio_entry_t *entry = get_pktio_entry(pktio_in);
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	entry->s.cls.skip = offset;
 	return 0;
 }
 
-int odp_pktio_set_headroom(odp_pktio_t port_id, size_t headroom)
+int odp_pktio_set_headroom(odp_pktio_t pktio_in, size_t headroom)
 {
-	(void)port_id;
-	(void)headroom;
-	ODP_UNIMPLEMENTED();
+	pktio_entry_t *entry = get_pktio_entry(pktio_in);
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+	entry->s.cls.headroom = headroom;
 	return 0;
 }
 
@@ -72,11 +324,26 @@ int odp_cos_with_l2_priority(odp_pktio_t pktio_in,
 			     uint8_t qos_table[],
 			     odp_cos_t cos_table[])
 {
-	(void)pktio_in;
-	(void)num_qos;
-	(void)qos_table;
-	(void)cos_table;
-	ODP_UNIMPLEMENTED();
+	pmr_l2_cos_t *l2_cos;
+	size_t i;
+	cos_t *cos;
+	pktio_entry_t *entry = get_pktio_entry(pktio_in);
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+	l2_cos = &entry->s.cls.l2_cos_table;
+
+	LOCK(&l2_cos->lock);
+	/* Update the L2 QoS table*/
+	for (i = 0; i < num_qos; i++) {
+		cos = get_cos_entry(cos_table[i]);
+		if (cos != NULL) {
+			if (ODP_COS_MAX_L2_QOS > qos_table[i])
+				l2_cos->cos[qos_table[i]] = cos;
+		}
+	}
+	UNLOCK(&l2_cos->lock);
 	return 0;
 }
 
@@ -86,12 +353,29 @@ int odp_cos_with_l3_qos(odp_pktio_t pktio_in,
 			odp_cos_t cos_table[],
 			bool l3_preference)
 {
-	(void)pktio_in;
-	(void)num_qos;
-	(void)qos_table;
-	(void)cos_table;
-	(void)l3_preference;
-	ODP_UNIMPLEMENTED();
+	pmr_l3_cos_t *l3_cos;
+	size_t i;
+	pktio_entry_t *entry = get_pktio_entry(pktio_in);
+	cos_t *cos;
+
+	if (entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+
+	entry->s.cls.l3_precedence = l3_preference;
+	l3_cos = &entry->s.cls.l3_cos_table;
+
+	LOCK(&l3_cos->lock);
+	/* Update the L3 QoS table*/
+	for (i = 0; i < num_qos; i++) {
+		cos = get_cos_entry(cos_table[i]);
+		if (cos != NULL) {
+			if (ODP_COS_MAX_L3_QOS > qos_table[i])
+				l3_cos->cos[qos_table[i]] = cos;
+		}
+	}
+	UNLOCK(&l3_cos->lock);
 	return 0;
 }
 
@@ -100,12 +384,27 @@ odp_pmr_t odp_pmr_create_match(odp_pmr_term_e term,
 			       const void *mask,
 			       size_t val_sz)
 {
-	(void)term;
-	(void)val;
-	(void)mask;
-	(void)val_sz;
-	ODP_UNIMPLEMENTED();
-	return 0;
+	pmr_t *pmr;
+	odp_pmr_t id;
+	if (val_sz > ODP_PMR_TERM_BYTES_MAX) {
+		ODP_ERR("val_sz greater than max supported limit");
+		return ODP_PMR_INVAL;
+	}
+
+	id = alloc_pmr(&pmr);
+	/*if alloc_pmr() is successful it returns with lock acquired*/
+	if (id == ODP_PMR_INVAL)
+		return ODP_PMR_INVAL;
+
+	pmr->s.num_pmr = 1;
+	pmr->s.pmr_term_value[0].match_type = ODP_PMR_MASK;
+	pmr->s.pmr_term_value[0].term = term;
+	pmr->s.pmr_term_value[0].mask.val =  0;
+	pmr->s.pmr_term_value[0].mask.mask =  0;
+	memcpy(&pmr->s.pmr_term_value[0].mask.val, val, val_sz);
+	memcpy(&pmr->s.pmr_term_value[0].mask.mask, mask, val_sz);
+	UNLOCK(&pmr->s.lock);
+	return id;
 }
 
 odp_pmr_t odp_pmr_create_range(odp_pmr_term_e term,
@@ -113,18 +412,36 @@ odp_pmr_t odp_pmr_create_range(odp_pmr_term_e term,
 			       const void *val2,
 			       size_t val_sz)
 {
-	(void)term;
-	(void)val1;
-	(void)val2;
-	(void)val_sz;
-	ODP_UNIMPLEMENTED();
-	return 0;
+	pmr_t *pmr;
+	odp_pmr_t id;
+
+	if (val_sz > ODP_PMR_TERM_BYTES_MAX) {
+		ODP_ERR("val_sz greater than max supported limit");
+		return ODP_PMR_INVAL;
+	}
+	id = alloc_pmr(&pmr);
+	/*if alloc_pmr() is successful it returns with lock acquired*/
+	if (id == ODP_PMR_INVAL)
+		return ODP_PMR_INVAL;
+
+	pmr->s.num_pmr = 1;
+	pmr->s.pmr_term_value[0].match_type = ODP_PMR_MASK;
+	pmr->s.pmr_term_value[0].term = term;
+	pmr->s.pmr_term_value[0].range.val1 =  0;
+	pmr->s.pmr_term_value[0].range.val2 =  0;
+	memcpy(&pmr->s.pmr_term_value[0].range.val1, val1, val_sz);
+	memcpy(&pmr->s.pmr_term_value[0].range.val2, val2, val_sz);
+	UNLOCK(&pmr->s.lock);
+	return id;
 }
 
 int odp_pmr_destroy(odp_pmr_t pmr_id)
 {
-	(void)pmr_id;
-	ODP_UNIMPLEMENTED();
+	pmr_t *pmr = get_pmr_entry(pmr_id);
+
+	if (pmr == NULL)
+		return -1;
+	pmr->s.valid = 0;
 	return 0;
 }
 
@@ -132,64 +449,478 @@ int odp_pktio_pmr_cos(odp_pmr_t pmr_id,
 		      odp_pktio_t src_pktio,
 		      odp_cos_t dst_cos)
 {
-	(void)pmr_id;
-	(void)src_pktio;
-	(void)dst_cos;
-	ODP_UNIMPLEMENTED();
+	uint8_t num_pmr;
+	pktio_entry_t *pktio_entry;
+	pmr_t *pmr;
+	cos_t *cos;
+
+	pktio_entry = get_pktio_entry(src_pktio);
+	if (pktio_entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+
+	pmr = get_pmr_entry(pmr_id);
+	if (pmr == NULL) {
+		ODP_ERR("Invalid odp_pmr_t handle");
+		return -1;
+	}
+
+	cos = get_cos_entry(dst_cos);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	LOCK(&pktio_entry->s.cls.lock);
+	num_pmr = pktio_entry->s.cls.num_pmr;
+	if (num_pmr >= ODP_PKTIO_MAX_PMR) {
+		ODP_ERR("ODP_PKTIO_MAX_PMR reached");
+		UNLOCK(&pktio_entry->s.cls.lock);
+		return -1;
+	}
+
+	pktio_entry->s.cls.pmr[num_pmr] = pmr;
+	pktio_entry->s.cls.cos[num_pmr] = cos;
+	pktio_entry->s.cls.num_pmr++;
+	UNLOCK(&pktio_entry->s.cls.lock);
+
 	return 0;
 }
 
 int odp_cos_pmr_cos(odp_pmr_t pmr_id, odp_cos_t src_cos, odp_cos_t dst_cos)
 {
-	(void)pmr_id;
-	(void)src_cos;
-	(void)dst_cos;
-	ODP_UNIMPLEMENTED();
+	cos_t *cos_src = get_cos_entry(src_cos);
+	cos_t *cos_dst = get_cos_entry(dst_cos);
+	pmr_t *pmr = get_pmr_entry(pmr_id);
+	if (NULL == cos_src || NULL == cos_dst || NULL == pmr) {
+		ODP_ERR("Invalid input handle");
+		return -1;
+	}
+
+	/*Locking is not required as intermittent stale data is acceptable*/
+	cos_src->s.pmr = pmr;
+	cos_src->s.linked_cos = cos_dst;
+
 	return 0;
 }
 
 signed long odp_pmr_match_count(odp_pmr_t pmr_id)
 {
-	(void)pmr_id;
-	ODP_UNIMPLEMENTED();
-	return 0;
+	pmr_t *pmr = get_pmr_entry(pmr_id);
+	if (pmr == NULL)
+		return -1;
+	return (signed long)odp_atomic_load_u32(&pmr->s.count);
 }
 
 unsigned long long odp_pmr_terms_cap(void)
 {
-	ODP_UNIMPLEMENTED();
-	return 0;
+	unsigned long long term_cap = 0;
+
+	term_cap |= (1 << ODP_PMR_LEN);
+	term_cap |= (1 << ODP_PMR_IPPROTO);
+	term_cap |= (1 << ODP_PMR_UDP_DPORT);
+	term_cap |= (1 << ODP_PMR_TCP_DPORT);
+	term_cap |= (1 << ODP_PMR_UDP_SPORT);
+	term_cap |= (1 << ODP_PMR_TCP_SPORT);
+	term_cap |= (1 << ODP_PMR_SIP_ADDR);
+	term_cap |= (1 << ODP_PMR_DIP_ADDR);
+	return term_cap;
 }
 
 unsigned odp_pmr_terms_avail(void)
 {
-	ODP_UNIMPLEMENTED();
-	return 0;
+	unsigned count = 0;
+	int i;
+
+	for (i = 0; i < ODP_PMR_MAX_ENTRY; i++)
+		if (!pmr_tbl->pmr[i].s.valid)
+			count++;
+	return count;
 }
 
 int odp_pmr_match_set_create(int num_terms, odp_pmr_match_t *terms,
 			     odp_pmr_set_t *pmr_set_id)
 {
-	(void)num_terms;
-	(void)terms;
-	(void)pmr_set_id;
-	ODP_UNIMPLEMENTED();
-	return 0;
+	pmr_t *pmr;
+	int i;
+	uint32_t id;
+	int val_sz;
+	int count = 0;
+
+	if (num_terms > ODP_PMRTERM_MAX) {
+		ODP_ERR("no of terms greater than supported ODP_PMRTERM_MAX");
+		return -1;
+	}
+
+	id = alloc_pmr_set(&pmr);
+	/*if alloc_pmr_set is successful it returns with the acquired lock*/
+	if (id == ODP_PMR_INVAL) {
+		*pmr_set_id = id;
+		return -1;
+	}
+
+	pmr->s.num_pmr = num_terms;
+	for (i = 0; i < num_terms; i++) {
+		pmr->s.pmr_term_value[i].match_type = terms[i].match_type;
+		if (terms[i].match_type == ODP_PMR_MASK) {
+			val_sz = terms[i].mask.val_sz;
+			if (val_sz > ODP_PMR_TERM_BYTES_MAX)
+				continue;
+			pmr->s.pmr_term_value[i].term = terms[i].mask.term;
+			pmr->s.pmr_term_value[i].mask.val = 0;
+			pmr->s.pmr_term_value[i].mask.mask = 0;
+			memcpy(&pmr->s.pmr_term_value[i].mask.val,
+			       terms[i].mask.val, val_sz);
+			memcpy(&pmr->s.pmr_term_value[i].mask.mask,
+			       terms[i].mask.mask, val_sz);
+		} else {
+			val_sz = terms[i].range.val_sz;
+			if (val_sz > ODP_PMR_TERM_BYTES_MAX)
+				continue;
+			pmr->s.pmr_term_value[i].term = terms[i].range.term;
+			pmr->s.pmr_term_value[i].range.val1 = 0;
+			pmr->s.pmr_term_value[i].range.val2 = 0;
+			memcpy(&pmr->s.pmr_term_value[i].range.val1,
+			       terms[i].range.val1, val_sz);
+			memcpy(&pmr->s.pmr_term_value[i].range.val2,
+			       terms[i].range.val2, val_sz);
+		}
+		count++;
+	}
+	*pmr_set_id = id;
+	UNLOCK(&pmr->s.lock);
+	return count;
 }
 
 int odp_pmr_match_set_destroy(odp_pmr_set_t pmr_set_id)
 {
-	(void)pmr_set_id;
-	ODP_UNIMPLEMENTED();
+	pmr_set_t *pmr_set = get_pmr_set_entry(pmr_set_id);
+	if (pmr_set == NULL)
+		return -1;
+
+	pmr_set->s.pmr.s.valid = 0;
 	return 0;
 }
 
 int odp_pktio_pmr_match_set_cos(odp_pmr_set_t pmr_set_id, odp_pktio_t src_pktio,
-				odp_cos_t dst_cos)
+		odp_cos_t dst_cos)
+{
+	uint8_t num_pmr;
+	pktio_entry_t *pktio_entry;
+	pmr_t *pmr;
+	cos_t *cos;
+
+	pktio_entry = get_pktio_entry(src_pktio);
+	if (pktio_entry == NULL) {
+		ODP_ERR("Invalid odp_pktio_t handle");
+		return -1;
+	}
+
+	pmr = (pmr_t *)get_pmr_set_entry(pmr_set_id);
+	if (pmr == NULL) {
+		ODP_ERR("Invalid odp_pmr_set_t handle");
+		return -1;
+	}
+
+	cos = get_cos_entry(dst_cos);
+	if (cos == NULL) {
+		ODP_ERR("Invalid odp_cos_t handle");
+		return -1;
+	}
+
+	LOCK(&pktio_entry->s.cls.lock);
+	num_pmr = pktio_entry->s.cls.num_pmr;
+	if (num_pmr >= ODP_PKTIO_MAX_PMR) {
+		ODP_ERR("ODP_PKTIO_MAX_PMR reached");
+		UNLOCK(&pktio_entry->s.cls.lock);
+		return -1;
+	}
+
+	pktio_entry->s.cls.pmr[num_pmr] = pmr;
+	pktio_entry->s.cls.cos[num_pmr] = cos;
+	pktio_entry->s.cls.num_pmr++;
+	UNLOCK(&pktio_entry->s.cls.lock);
+
+	return 0;
+}
+
+int verify_pmr(pmr_t *pmr, uint8_t *pkt_addr, odp_packet_hdr_t *pkt_hdr)
+{
+	int pmr_failure = 0;
+	int num_pmr;
+	int i;
+	pmr_term_value_t *term_value;
+
+	/* Locking is not required as PMR rules for in-flight packets
+	delivery during a PMR change is indeterminate*/
+
+	if (!pmr->s.valid)
+		return 0;
+	num_pmr = pmr->s.num_pmr;
+
+	/* Iterate through list of PMR Term values in a pmr_t */
+	for (i = 0; i < num_pmr; i++) {
+		term_value = &pmr->s.pmr_term_value[i];
+		switch (term_value->term) {
+		case ODP_PMR_LEN:
+			if (!verify_pmr_packet_len(pkt_hdr, term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_ETHTYPE_0:
+			if (!verify_pmr_eth_type_0(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_ETHTYPE_X:
+			if (!verify_pmr_eth_type_x(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_VLAN_ID_0:
+			if (!verify_pmr_vlan_id_0(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_VLAN_ID_X:
+			if (!verify_pmr_vlan_id_x(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_DMAC:
+			if (!verify_pmr_dmac(pkt_addr, pkt_hdr,
+					     term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_IPPROTO:
+			if (!verify_pmr_ip_proto(pkt_addr, pkt_hdr,
+						 term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_UDP_DPORT:
+			if (!verify_pmr_udp_dport(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_TCP_DPORT:
+			if (!verify_pmr_tcp_dport(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_UDP_SPORT:
+			if (!verify_pmr_udp_sport(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_TCP_SPORT:
+			if (!verify_pmr_tcp_sport(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_SIP_ADDR:
+			if (!verify_pmr_ipv4_saddr(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_DIP_ADDR:
+			if (!verify_pmr_ipv4_daddr(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_SIP6_ADDR:
+			if (!verify_pmr_ipv6_saddr(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_DIP6_ADDR:
+			if (!verify_pmr_ipv6_daddr(pkt_addr, pkt_hdr,
+						   term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_IPSEC_SPI:
+			if (!verify_pmr_ipsec_spi(pkt_addr, pkt_hdr,
+						  term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_LD_VNI:
+			if (!verify_pmr_ld_vni(pkt_addr, pkt_hdr,
+					       term_value))
+				pmr_failure = 1;
+			break;
+		case ODP_PMR_INNER_HDR_OFF:
+			break;
+		}
+
+		if (pmr_failure)
+			return false;
+	}
+	odp_atomic_inc_u32(&pmr->s.count);
+	return true;
+}
+
+cos_t *match_pmr_cos(cos_t *cos, uint8_t *pkt_addr, pmr_t *pmr,
+		     odp_packet_hdr_t *hdr)
+{
+	cos_t *retcos = NULL;
+
+	if (cos == NULL || pmr == NULL)
+		return NULL;
+
+	if (!cos->s.valid)
+		return NULL;
+
+	if (verify_pmr(pmr, pkt_addr, hdr)) {
+		/** This gets called recursively to check all the PMRs in
+		 * a PMR chain */
+		retcos = match_pmr_cos(cos->s.linked_cos, pkt_addr,
+				       cos->s.pmr, hdr);
+		if (!retcos)
+			return cos;
+	}
+	return retcos;
+}
+
+int pktio_classifier_init(pktio_entry_t *entry)
 {
-	(void)pmr_set_id;
-	(void)src_pktio;
-	(void)dst_cos;
-	ODP_UNIMPLEMENTED();
+	classifier_t *cls;
+	int i;
+	/* classifier lock should be acquired by the calling function */
+	if (entry == NULL)
+		return -1;
+	cls = &entry->s.cls;
+	cls->num_pmr = 0;
+	cls->flow_set = 0;
+	cls->error_cos = NULL;
+	cls->default_cos = NULL;
+	cls->headroom = 0;
+	cls->skip = 0;
+
+	for (i = 0; i < ODP_PKTIO_MAX_PMR; i++) {
+		cls->pmr[i] = NULL;
+		cls->cos[i] = NULL;
+	}
+
 	return 0;
 }
+
+int packet_classifier(odp_pktio_t pktio, odp_packet_t pkt)
+{
+	pktio_entry_t *entry;
+	queue_entry_t *queue;
+	cos_t *cos;
+	odp_packet_hdr_t *pkt_hdr;
+	uint8_t *pkt_addr;
+
+	entry = get_pktio_entry(pktio);
+	if (entry == NULL)
+		return -1;
+
+	pkt_hdr = odp_packet_hdr(pkt);
+	pkt_addr = odp_packet_addr(pkt);
+
+	/* Matching PMR and selecting the CoS for the packet*/
+	cos = pktio_select_cos(entry, pkt_addr, pkt_hdr);
+	if (cos == NULL)
+		return -1;
+
+	/* Enqueuing the Packet based on the CoS */
+	queue = cos->s.queue;
+	return queue_enq(queue, odp_buf_to_hdr((odp_buffer_t)pkt));
+}
+
+cos_t *pktio_select_cos(pktio_entry_t *entry, uint8_t *pkt_addr,
+		       odp_packet_hdr_t *pkt_hdr)
+{
+	pmr_t *pmr;
+	cos_t *cos;
+	uint32_t i;
+	classifier_t *cls;
+
+	cls = &entry->s.cls;
+
+	/* Return error cos for error packet */
+	if (pkt_hdr->error_flags.all)
+		return cls->error_cos;
+	/* Calls all the PMRs attached at the PKTIO level*/
+	for (i = 0; i < cls->num_pmr; i++) {
+		pmr = entry->s.cls.pmr[i];
+		cos = entry->s.cls.cos[i];
+		cos = match_pmr_cos(cos, pkt_addr, pmr, pkt_hdr);
+		if (cos)
+			return cos;
+	}
+
+	cos = match_qos_cos(entry, pkt_addr, pkt_hdr);
+	if (cos)
+		return cos;
+
+	return cls->default_cos;
+}
+
+cos_t *match_qos_l3_cos(pmr_l3_cos_t *l3_cos, uint8_t *pkt_addr,
+			odp_packet_hdr_t *hdr)
+{
+	uint8_t dscp;
+	cos_t *cos = NULL;
+	odph_ipv4hdr_t *ipv4;
+	odph_ipv6hdr_t *ipv6;
+
+	if (hdr->input_flags.l3 && hdr->input_flags.ipv4) {
+		ipv4 = (odph_ipv4hdr_t *)(pkt_addr + hdr->l3_offset);
+		dscp = ODPH_IPV4HDR_DSCP(ipv4->tos);
+		cos = l3_cos->cos[dscp];
+	} else if (hdr->input_flags.l3 && hdr->input_flags.ipv6) {
+		ipv6 = (odph_ipv6hdr_t *)(pkt_addr + hdr->l3_offset);
+		dscp = ODPH_IPV6HDR_DSCP(ipv6->ver_tc_flow);
+		cos = l3_cos->cos[dscp];
+	}
+
+	return cos;
+}
+
+cos_t *match_qos_l2_cos(pmr_l2_cos_t *l2_cos, uint8_t *pkt_addr,
+			odp_packet_hdr_t *hdr)
+{
+	uint8_t qos;
+	cos_t *cos = NULL;
+	odph_ethhdr_t *eth;
+	odph_vlanhdr_t *vlan;
+
+	if (hdr->input_flags.l2 && hdr->input_flags.vlan &&
+	    hdr->input_flags.eth) {
+		eth = (odph_ethhdr_t *)(pkt_addr + hdr->l2_offset);
+		vlan = (odph_vlanhdr_t *)(&eth->type);
+		qos = ((vlan->tci >> 13) & 0xFF);
+		cos = l2_cos->cos[qos];
+	}
+	return cos;
+}
+
+cos_t *match_qos_cos(pktio_entry_t *entry, uint8_t *pkt_addr,
+		     odp_packet_hdr_t *hdr)
+{
+	classifier_t *cls = &entry->s.cls;
+	pmr_l2_cos_t *l2_cos;
+	pmr_l3_cos_t *l3_cos;
+	cos_t *cos;
+
+	l2_cos = &cls->l2_cos_table;
+	l3_cos = &cls->l3_cos_table;
+
+	if (cls->l3_precedence) {
+		cos =  match_qos_l3_cos(l3_cos, pkt_addr, hdr);
+		if (cos)
+			return cos;
+		cos = match_qos_l2_cos(l2_cos, pkt_addr, hdr);
+		if (cos)
+			return cos;
+	} else {
+		cos = match_qos_l2_cos(l2_cos, pkt_addr, hdr);
+		if (cos)
+			return cos;
+		cos = match_qos_l3_cos(l3_cos, pkt_addr, hdr);
+		if (cos)
+			return cos;
+	}
+	return NULL;
+}
diff --git a/platform/linux-generic/odp_init.c b/platform/linux-generic/odp_init.c
index 672b3d602..c66123136 100644
--- a/platform/linux-generic/odp_init.c
+++ b/platform/linux-generic/odp_init.c
@@ -54,6 +54,10 @@ int odp_init_global(odp_init_t *params  ODP_UNUSED,
 		ODP_ERR("ODP crypto init failed.\n");
 		return -1;
 	}
+	if (odp_classification_init_global()) {
+		ODP_ERR("ODP crypto init failed.\n");
+		return -1;
+	}
 
 	return 0;
 }
diff --git a/platform/linux-generic/odp_packet_io.c b/platform/linux-generic/odp_packet_io.c
index 19b9eeab2..6bda003e3 100644
--- a/platform/linux-generic/odp_packet_io.c
+++ b/platform/linux-generic/odp_packet_io.c
@@ -13,10 +13,10 @@
 #include <odp_spinlock.h>
 #include <odp_shared_memory.h>
 #include <odp_packet_socket.h>
-#include <odp_hints.h>
 #include <odp_config.h>
 #include <odp_queue_internal.h>
 #include <odp_schedule_internal.h>
+#include <odp_classification_internal.h>
 #include <odp_debug_internal.h>
 
 #include <string.h>
@@ -50,6 +50,7 @@ int odp_pktio_init_global(void)
 		pktio_entry = &pktio_tbl->entries[id - 1];
 
 		odp_spinlock_init(&pktio_entry->s.lock);
+		odp_spinlock_init(&pktio_entry->s.cls.lock);
 
 		pktio_entry_ptr[id - 1] = pktio_entry;
 		/* Create a default output queue for each pktio resource */
@@ -98,12 +99,25 @@ static void unlock_entry(pktio_entry_t *entry)
 	odp_spinlock_unlock(&entry->s.lock);
 }
 
+static void lock_entry_classifier(pktio_entry_t *entry)
+{
+	odp_spinlock_lock(&entry->s.lock);
+	odp_spinlock_lock(&entry->s.cls.lock);
+}
+
+static void unlock_entry_classifier(pktio_entry_t *entry)
+{
+	odp_spinlock_unlock(&entry->s.cls.lock);
+	odp_spinlock_unlock(&entry->s.lock);
+}
+
 static void init_pktio_entry(pktio_entry_t *entry)
 {
 	set_taken(entry);
 	entry->s.inq_default = ODP_QUEUE_INVALID;
 	memset(&entry->s.pkt_sock, 0, sizeof(entry->s.pkt_sock));
 	memset(&entry->s.pkt_sock_mmap, 0, sizeof(entry->s.pkt_sock_mmap));
+	pktio_classifier_init(entry);
 }
 
 static odp_pktio_t alloc_lock_pktio_entry(void)
@@ -115,13 +129,13 @@ static odp_pktio_t alloc_lock_pktio_entry(void)
 	for (i = 0; i < ODP_CONFIG_PKTIO_ENTRIES; ++i) {
 		entry = &pktio_tbl->entries[i];
 		if (is_free(entry)) {
-			lock_entry(entry);
+			lock_entry_classifier(entry);
 			if (is_free(entry)) {
 				init_pktio_entry(entry);
 				id = i + 1;
 				return id; /* return with entry locked! */
 			}
-			unlock_entry(entry);
+			unlock_entry_classifier(entry);
 		}
 	}
 
@@ -190,14 +204,14 @@ odp_pktio_t odp_pktio_open(const char *dev, odp_buffer_pool_t pool)
 		close_pkt_sock(&pktio_entry->s.pkt_sock);
 	}
 
-	unlock_entry(pktio_entry);
+	unlock_entry_classifier(pktio_entry);
 	free_pktio_entry(id);
 	ODP_ERR("Unable to init any I/O type.\n");
 	return ODP_PKTIO_INVALID;
 
 done:
 	strncpy(pktio_entry->s.name, dev, IFNAMSIZ);
-	unlock_entry(pktio_entry);
+	unlock_entry_classifier(pktio_entry);
 	return id;
 }
 
@@ -415,7 +429,7 @@ odp_buffer_hdr_t *pktin_dequeue(queue_entry_t *qentry)
 	odp_buffer_t buf;
 	odp_packet_t pkt_tbl[QUEUE_MULTI_MAX];
 	odp_buffer_hdr_t *tmp_hdr_tbl[QUEUE_MULTI_MAX];
-	int pkts, i;
+	int pkts, i, j;
 
 	buf_hdr = queue_deq(qentry);
 	if (buf_hdr != NULL)
@@ -425,12 +439,15 @@ odp_buffer_hdr_t *pktin_dequeue(queue_entry_t *qentry)
 	if (pkts <= 0)
 		return NULL;
 
-	for (i = 0; i < pkts; ++i) {
+	for (i = 0, j = 0; i < pkts; ++i) {
 		buf = odp_packet_to_buffer(pkt_tbl[i]);
-		tmp_hdr_tbl[i] = odp_buf_to_hdr(buf);
+		buf_hdr = odp_buf_to_hdr(buf);
+		if (0 > packet_classifier(qentry->s.pktin, pkt_tbl[i]))
+			tmp_hdr_tbl[j++] = buf_hdr;
 	}
 
-	queue_enq_multi(qentry, tmp_hdr_tbl, pkts);
+	if (j)
+		queue_enq_multi(qentry, tmp_hdr_tbl, j);
 	buf_hdr = tmp_hdr_tbl[0];
 	return buf_hdr;
 }
@@ -446,8 +463,9 @@ int pktin_deq_multi(queue_entry_t *qentry, odp_buffer_hdr_t *buf_hdr[], int num)
 	int nbr;
 	odp_packet_t pkt_tbl[QUEUE_MULTI_MAX];
 	odp_buffer_hdr_t *tmp_hdr_tbl[QUEUE_MULTI_MAX];
+	odp_buffer_hdr_t *tmp_hdr;
 	odp_buffer_t buf;
-	int pkts, i;
+	int pkts, i, j;
 
 	nbr = queue_deq_multi(qentry, buf_hdr, num);
 	if (odp_unlikely(nbr > num))
@@ -464,12 +482,15 @@ int pktin_deq_multi(queue_entry_t *qentry, odp_buffer_hdr_t *buf_hdr[], int num)
 	if (pkts <= 0)
 		return nbr;
 
-	for (i = 0; i < pkts; ++i) {
+	for (i = 0, j = 0; i < pkts; ++i) {
 		buf = odp_packet_to_buffer(pkt_tbl[i]);
-		tmp_hdr_tbl[i] = odp_buf_to_hdr(buf);
+		tmp_hdr = odp_buf_to_hdr(buf);
+		if (0 > packet_classifier(qentry->s.pktin, pkt_tbl[i]))
+			tmp_hdr_tbl[j++] = tmp_hdr;
 	}
 
-	queue_enq_multi(qentry, tmp_hdr_tbl, pkts);
+	if (j)
+		queue_enq_multi(qentry, tmp_hdr_tbl, j);
 	return nbr;
 }