Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 314 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h
new file mode 100644
index 000000000..8867f25af
--- /dev/null
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h
@@ -0,0 +1,314 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * RSS and Classifier definitions for Marvell PPv2 Network Controller
+ *
+ * Copyright (C) 2014 Marvell
+ *
+ * Marcin Wojtas <mw@semihalf.com>
+ */
+
+#ifndef _MVPP2_CLS_H_
+#define _MVPP2_CLS_H_
+
+#include "mvpp2.h"
+#include "mvpp2_prs.h"
+
+/* Classifier constants */
+#define MVPP2_CLS_FLOWS_TBL_SIZE	512
+#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS	3
+#define MVPP2_CLS_LKP_TBL_SIZE		64
+#define MVPP2_CLS_RX_QUEUES		256
+
+/* Classifier flow constants */
+
+#define MVPP2_FLOW_N_FIELDS		4
+
+enum mvpp2_cls_engine {
+	MVPP22_CLS_ENGINE_C2 = 1,
+	MVPP22_CLS_ENGINE_C3A,
+	MVPP22_CLS_ENGINE_C3B,
+	MVPP22_CLS_ENGINE_C4,
+	MVPP22_CLS_ENGINE_C3HA = 6,
+	MVPP22_CLS_ENGINE_C3HB = 7,
+};
+
+#define MVPP22_CLS_HEK_OPT_MAC_DA	BIT(0)
+#define MVPP22_CLS_HEK_OPT_VLAN_PRI	BIT(1)
+#define MVPP22_CLS_HEK_OPT_VLAN		BIT(2)
+#define MVPP22_CLS_HEK_OPT_L3_PROTO	BIT(3)
+#define MVPP22_CLS_HEK_OPT_IP4SA	BIT(4)
+#define MVPP22_CLS_HEK_OPT_IP4DA	BIT(5)
+#define MVPP22_CLS_HEK_OPT_IP6SA	BIT(6)
+#define MVPP22_CLS_HEK_OPT_IP6DA	BIT(7)
+#define MVPP22_CLS_HEK_OPT_L4SIP	BIT(8)
+#define MVPP22_CLS_HEK_OPT_L4DIP	BIT(9)
+#define MVPP22_CLS_HEK_N_FIELDS		10
+
+#define MVPP22_CLS_HEK_L4_OPTS	(MVPP22_CLS_HEK_OPT_L4SIP | \
+				 MVPP22_CLS_HEK_OPT_L4DIP)
+
+#define MVPP22_CLS_HEK_IP4_2T	(MVPP22_CLS_HEK_OPT_IP4SA | \
+				 MVPP22_CLS_HEK_OPT_IP4DA)
+
+#define MVPP22_CLS_HEK_IP6_2T	(MVPP22_CLS_HEK_OPT_IP6SA | \
+				 MVPP22_CLS_HEK_OPT_IP6DA)
+
+/* The fifth tuple in "5T" is the L4_Info field */
+#define MVPP22_CLS_HEK_IP4_5T	(MVPP22_CLS_HEK_IP4_2T | \
+				 MVPP22_CLS_HEK_L4_OPTS)
+
+#define MVPP22_CLS_HEK_IP6_5T	(MVPP22_CLS_HEK_IP6_2T | \
+				 MVPP22_CLS_HEK_L4_OPTS)
+
+#define MVPP22_CLS_HEK_TAGGED	(MVPP22_CLS_HEK_OPT_VLAN | \
+				 MVPP22_CLS_HEK_OPT_VLAN_PRI)
+
+enum mvpp2_cls_field_id {
+	MVPP22_CLS_FIELD_MAC_DA = 0x03,
+	MVPP22_CLS_FIELD_VLAN_PRI = 0x05,
+	MVPP22_CLS_FIELD_VLAN = 0x06,
+	MVPP22_CLS_FIELD_L3_PROTO = 0x0f,
+	MVPP22_CLS_FIELD_IP4SA = 0x10,
+	MVPP22_CLS_FIELD_IP4DA = 0x11,
+	MVPP22_CLS_FIELD_IP6SA = 0x17,
+	MVPP22_CLS_FIELD_IP6DA = 0x1a,
+	MVPP22_CLS_FIELD_L4SIP = 0x1d,
+	MVPP22_CLS_FIELD_L4DIP = 0x1e,
+};
+
+/* Classifier C2 engine constants */
+#define MVPP22_CLS_C2_TCAM_EN(data)		((data) << 16)
+
+enum mvpp22_cls_c2_action {
+	MVPP22_C2_NO_UPD = 0,
+	MVPP22_C2_NO_UPD_LOCK,
+	MVPP22_C2_UPD,
+	MVPP22_C2_UPD_LOCK,
+};
+
+enum mvpp22_cls_c2_fwd_action {
+	MVPP22_C2_FWD_NO_UPD = 0,
+	MVPP22_C2_FWD_NO_UPD_LOCK,
+	MVPP22_C2_FWD_SW,
+	MVPP22_C2_FWD_SW_LOCK,
+	MVPP22_C2_FWD_HW,
+	MVPP22_C2_FWD_HW_LOCK,
+	MVPP22_C2_FWD_HW_LOW_LAT,
+	MVPP22_C2_FWD_HW_LOW_LAT_LOCK,
+};
+
+enum mvpp22_cls_c2_color_action {
+	MVPP22_C2_COL_NO_UPD = 0,
+	MVPP22_C2_COL_NO_UPD_LOCK,
+	MVPP22_C2_COL_GREEN,
+	MVPP22_C2_COL_GREEN_LOCK,
+	MVPP22_C2_COL_YELLOW,
+	MVPP22_C2_COL_YELLOW_LOCK,
+	MVPP22_C2_COL_RED,		/* Drop */
+	MVPP22_C2_COL_RED_LOCK,		/* Drop */
+};
+
+#define MVPP2_CLS_C2_TCAM_WORDS			5
+#define MVPP2_CLS_C2_ATTR_WORDS			5
+
+struct mvpp2_cls_c2_entry {
+	u32 index;
+	/* TCAM lookup key */
+	u32 tcam[MVPP2_CLS_C2_TCAM_WORDS];
+	/* Actions to perform upon TCAM match */
+	u32 act;
+	/* Attributes relative to the actions to perform */
+	u32 attr[MVPP2_CLS_C2_ATTR_WORDS];
+	/* Entry validity */
+	u8 valid;
+};
+
+#define MVPP22_FLOW_ETHER_BIT	BIT(0)
+#define MVPP22_FLOW_IP4_BIT	BIT(1)
+#define MVPP22_FLOW_IP6_BIT	BIT(2)
+#define MVPP22_FLOW_TCP_BIT	BIT(3)
+#define MVPP22_FLOW_UDP_BIT	BIT(4)
+
+#define MVPP22_FLOW_TCP4	(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_TCP_BIT)
+#define MVPP22_FLOW_TCP6	(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_TCP_BIT)
+#define MVPP22_FLOW_UDP4	(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_UDP_BIT)
+#define MVPP22_FLOW_UDP6	(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_UDP_BIT)
+#define MVPP22_FLOW_IP4		(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT)
+#define MVPP22_FLOW_IP6		(MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT)
+#define MVPP22_FLOW_ETHERNET	(MVPP22_FLOW_ETHER_BIT)
+
+/* Classifier C2 engine entries */
+#define MVPP22_CLS_C2_N_ENTRIES		256
+
+/* Number of per-port dedicated entries in the C2 TCAM */
+#define MVPP22_CLS_C2_PORT_N_FLOWS	MVPP2_N_RFS_ENTRIES_PER_FLOW
+
+/* Each port has oen range per flow type + one entry controling the global RSS
+ * setting and the default rx queue
+ */
+#define MVPP22_CLS_C2_PORT_RANGE	(MVPP22_CLS_C2_PORT_N_FLOWS + 1)
+#define MVPP22_CLS_C2_PORT_FIRST(p)	((p) * MVPP22_CLS_C2_PORT_RANGE)
+#define MVPP22_CLS_C2_RSS_ENTRY(p)	(MVPP22_CLS_C2_PORT_FIRST((p) + 1) - 1)
+
+#define MVPP22_CLS_C2_PORT_FLOW_FIRST(p)	(MVPP22_CLS_C2_PORT_FIRST(p))
+
+#define MVPP22_CLS_C2_RFS_LOC(p, loc)	(MVPP22_CLS_C2_PORT_FLOW_FIRST(p) + (loc))
+
+/* Packet flow ID */
+enum mvpp2_prs_flow {
+	MVPP2_FL_START = 8,
+	MVPP2_FL_IP4_TCP_NF_UNTAG = MVPP2_FL_START,
+	MVPP2_FL_IP4_UDP_NF_UNTAG,
+	MVPP2_FL_IP4_TCP_NF_TAG,
+	MVPP2_FL_IP4_UDP_NF_TAG,
+	MVPP2_FL_IP6_TCP_NF_UNTAG,
+	MVPP2_FL_IP6_UDP_NF_UNTAG,
+	MVPP2_FL_IP6_TCP_NF_TAG,
+	MVPP2_FL_IP6_UDP_NF_TAG,
+	MVPP2_FL_IP4_TCP_FRAG_UNTAG,
+	MVPP2_FL_IP4_UDP_FRAG_UNTAG,
+	MVPP2_FL_IP4_TCP_FRAG_TAG,
+	MVPP2_FL_IP4_UDP_FRAG_TAG,
+	MVPP2_FL_IP6_TCP_FRAG_UNTAG,
+	MVPP2_FL_IP6_UDP_FRAG_UNTAG,
+	MVPP2_FL_IP6_TCP_FRAG_TAG,
+	MVPP2_FL_IP6_UDP_FRAG_TAG,
+	MVPP2_FL_IP4_UNTAG, /* non-TCP, non-UDP, same for below */
+	MVPP2_FL_IP4_TAG,
+	MVPP2_FL_IP6_UNTAG,
+	MVPP2_FL_IP6_TAG,
+	MVPP2_FL_NON_IP_UNTAG,
+	MVPP2_FL_NON_IP_TAG,
+	MVPP2_FL_LAST,
+};
+
+/* LU Type defined for all engines, and specified in the flow table */
+#define MVPP2_CLS_LU_TYPE_MASK			0x3f
+
+enum mvpp2_cls_lu_type {
+	/* rule->loc is used as a lu-type for the entries 0 - 62. */
+	MVPP22_CLS_LU_TYPE_ALL = 63,
+};
+
+#define MVPP2_N_FLOWS		(MVPP2_FL_LAST - MVPP2_FL_START)
+
+struct mvpp2_cls_flow {
+	/* The L2-L4 traffic flow type */
+	int flow_type;
+
+	/* The first id in the flow table for this flow */
+	u16 flow_id;
+
+	/* The supported HEK fields for this flow */
+	u16 supported_hash_opts;
+
+	/* The Header Parser result_info that matches this flow */
+	struct mvpp2_prs_result_info prs_ri;
+};
+
+#define MVPP2_CLS_FLT_ENTRIES_PER_FLOW		(MVPP2_MAX_PORTS + 1 + 16)
+#define MVPP2_CLS_FLT_FIRST(id)			(((id) - MVPP2_FL_START) * \
+						 MVPP2_CLS_FLT_ENTRIES_PER_FLOW)
+
+#define MVPP2_CLS_FLT_C2_RFS(port, id, rfs_n)	(MVPP2_CLS_FLT_FIRST(id) + \
+						 ((port) * MVPP2_MAX_PORTS) + \
+						 (rfs_n))
+
+#define MVPP2_CLS_FLT_C2_RSS_ENTRY(id)		(MVPP2_CLS_FLT_C2_RFS(MVPP2_MAX_PORTS, id, 0))
+#define MVPP2_CLS_FLT_HASH_ENTRY(port, id)	(MVPP2_CLS_FLT_C2_RSS_ENTRY(id) + 1 + (port))
+#define MVPP2_CLS_FLT_LAST(id)			(MVPP2_CLS_FLT_FIRST(id) + \
+						 MVPP2_CLS_FLT_ENTRIES_PER_FLOW - 1)
+
+/* Iterate on each classifier flow id. Sets 'i' to be the index of the first
+ * entry in the cls_flows table for each different flow_id.
+ * This relies on entries having the same flow_id in the cls_flows table being
+ * contiguous.
+ */
+#define for_each_cls_flow_id(i)						      \
+	for ((i) = 0; (i) < MVPP2_N_PRS_FLOWS; (i)++)			      \
+		if ((i) > 0 &&						      \
+		    cls_flows[(i)].flow_id == cls_flows[(i) - 1].flow_id)       \
+			continue;					      \
+		else
+
+/* Iterate on each classifier flow that has a given flow_type. Sets 'i' to be
+ * the index of the first entry in the cls_flow table for each different flow_id
+ * that has the given flow_type. This allows to operate on all flows that
+ * matches a given ethtool flow type.
+ */
+#define for_each_cls_flow_id_with_type(i, type)				      \
+	for_each_cls_flow_id((i))					      \
+		if (cls_flows[(i)].flow_type != (type))			      \
+			continue;					      \
+		else
+
+#define for_each_cls_flow_id_containing_type(i, type)			      \
+	for_each_cls_flow_id((i))					      \
+		if ((cls_flows[(i)].flow_type & (type)) != (type))	      \
+			continue;					      \
+		else
+
+struct mvpp2_cls_flow_entry {
+	u32 index;
+	u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
+};
+
+struct mvpp2_cls_lookup_entry {
+	u32 lkpid;
+	u32 way;
+	u32 data;
+};
+
+int mvpp22_port_rss_init(struct mvpp2_port *port);
+
+int mvpp22_port_rss_enable(struct mvpp2_port *port);
+int mvpp22_port_rss_disable(struct mvpp2_port *port);
+
+int mvpp22_port_rss_ctx_create(struct mvpp2_port *port, u32 *rss_ctx);
+int mvpp22_port_rss_ctx_delete(struct mvpp2_port *port, u32 rss_ctx);
+
+int mvpp22_port_rss_ctx_indir_set(struct mvpp2_port *port, u32 rss_ctx,
+				  const u32 *indir);
+int mvpp22_port_rss_ctx_indir_get(struct mvpp2_port *port, u32 rss_ctx,
+				  u32 *indir);
+
+int mvpp2_ethtool_rxfh_get(struct mvpp2_port *port, struct ethtool_rxnfc *info);
+int mvpp2_ethtool_rxfh_set(struct mvpp2_port *port, struct ethtool_rxnfc *info);
+
+void mvpp2_cls_init(struct mvpp2 *priv);
+
+void mvpp2_cls_port_config(struct mvpp2_port *port);
+
+void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port);
+
+int mvpp2_cls_flow_eng_get(struct mvpp2_cls_flow_entry *fe);
+
+u16 mvpp2_flow_get_hek_fields(struct mvpp2_cls_flow_entry *fe);
+
+const struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow);
+
+u32 mvpp2_cls_flow_hits(struct mvpp2 *priv, int index);
+
+void mvpp2_cls_flow_read(struct mvpp2 *priv, int index,
+			 struct mvpp2_cls_flow_entry *fe);
+
+u32 mvpp2_cls_lookup_hits(struct mvpp2 *priv, int index);
+
+void mvpp2_cls_lookup_read(struct mvpp2 *priv, int lkpid, int way,
+			   struct mvpp2_cls_lookup_entry *le);
+
+u32 mvpp2_cls_c2_hit_count(struct mvpp2 *priv, int c2_index);
+
+void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,
+		       struct mvpp2_cls_c2_entry *c2);
+
+int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port,
+			       struct ethtool_rxnfc *rxnfc);
+
+int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port,
+			       struct ethtool_rxnfc *info);
+
+int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port,
+			       struct ethtool_rxnfc *info);
+
+#endif