Adding upstream version 6.1.76.upstream/6.1.76upstream

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

1 files changed, 121 insertions, 0 deletions

diff --git a/drivers/net/ethernet/sfc/tc.h b/drivers/net/ethernet/sfc/tc.h
new file mode 100644
index 000000000..196fd74ed
--- /dev/null
+++ b/drivers/net/ethernet/sfc/tc.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/****************************************************************************
+ * Driver for Solarflare network controllers and boards
+ * Copyright 2019 Solarflare Communications Inc.
+ * Copyright 2020-2022 Xilinx Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_TC_H
+#define EFX_TC_H
+#include <net/flow_offload.h>
+#include <linux/rhashtable.h>
+#include "net_driver.h"
+
+/* Error reporting: convenience macros.  For indicating why a given filter
+ * insertion is not supported; errors in internal operation or in the
+ * hardware should be netif_err()s instead.
+ */
+/* Used when error message is constant. */
+#define EFX_TC_ERR_MSG(efx, extack, message)	do {			\
+	NL_SET_ERR_MSG_MOD(extack, message);				\
+	if (efx->log_tc_errs)						\
+		netif_info(efx, drv, efx->net_dev, "%s\n", message);	\
+} while (0)
+/* Used when error message is not constant; caller should also supply a
+ * constant extack message with NL_SET_ERR_MSG_MOD().
+ */
+#define efx_tc_err(efx, fmt, args...)	do {		\
+if (efx->log_tc_errs)					\
+	netif_info(efx, drv, efx->net_dev, fmt, ##args);\
+} while (0)
+
+struct efx_tc_action_set {
+	u16 deliver:1;
+	u32 dest_mport;
+	u32 fw_id; /* index of this entry in firmware actions table */
+	struct list_head list;
+};
+
+struct efx_tc_match_fields {
+	/* L1 */
+	u32 ingress_port;
+	u8 recirc_id;
+};
+
+struct efx_tc_match {
+	struct efx_tc_match_fields value;
+	struct efx_tc_match_fields mask;
+};
+
+struct efx_tc_action_set_list {
+	struct list_head list;
+	u32 fw_id;
+};
+
+struct efx_tc_flow_rule {
+	unsigned long cookie;
+	struct rhash_head linkage;
+	struct efx_tc_match match;
+	struct efx_tc_action_set_list acts;
+	u32 fw_id;
+};
+
+enum efx_tc_rule_prios {
+	EFX_TC_PRIO_TC, /* Rule inserted by TC */
+	EFX_TC_PRIO_DFLT, /* Default switch rule; one of efx_tc_default_rules */
+	EFX_TC_PRIO__NUM
+};
+
+/**
+ * struct efx_tc_state - control plane data for TC offload
+ *
+ * @caps: MAE capabilities reported by MCDI
+ * @block_list: List of &struct efx_tc_block_binding
+ * @mutex: Used to serialise operations on TC hashtables
+ * @match_action_ht: Hashtable of TC match-action rules
+ * @reps_mport_id: MAE port allocated for representor RX
+ * @reps_filter_uc: VNIC filter for representor unicast RX (promisc)
+ * @reps_filter_mc: VNIC filter for representor multicast RX (allmulti)
+ * @reps_mport_vport_id: vport_id for representor RX filters
+ * @dflt: Match-action rules for default switching; at priority
+ *	%EFX_TC_PRIO_DFLT.  Named by *ingress* port
+ * @dflt.pf: rule for traffic ingressing from PF (egresses to wire)
+ * @dflt.wire: rule for traffic ingressing from wire (egresses to PF)
+ * @up: have TC datastructures been set up?
+ */
+struct efx_tc_state {
+	struct mae_caps *caps;
+	struct list_head block_list;
+	struct mutex mutex;
+	struct rhashtable match_action_ht;
+	u32 reps_mport_id, reps_mport_vport_id;
+	s32 reps_filter_uc, reps_filter_mc;
+	struct {
+		struct efx_tc_flow_rule pf;
+		struct efx_tc_flow_rule wire;
+	} dflt;
+	bool up;
+};
+
+struct efx_rep;
+
+int efx_tc_configure_default_rule_rep(struct efx_rep *efv);
+void efx_tc_deconfigure_default_rule(struct efx_nic *efx,
+				     struct efx_tc_flow_rule *rule);
+int efx_tc_flower(struct efx_nic *efx, struct net_device *net_dev,
+		  struct flow_cls_offload *tc, struct efx_rep *efv);
+
+int efx_tc_insert_rep_filters(struct efx_nic *efx);
+void efx_tc_remove_rep_filters(struct efx_nic *efx);
+
+int efx_init_tc(struct efx_nic *efx);
+void efx_fini_tc(struct efx_nic *efx);
+
+int efx_init_struct_tc(struct efx_nic *efx);
+void efx_fini_struct_tc(struct efx_nic *efx);
+
+#endif /* EFX_TC_H */