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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
new file mode 100644
index 000000000..82e711afb
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
+/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
+
+#ifndef _MLXSW_SPECTRUM_SPAN_H
+#define _MLXSW_SPECTRUM_SPAN_H
+
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <linux/refcount.h>
+
+#include "spectrum_router.h"
+
+struct mlxsw_sp;
+struct mlxsw_sp_port;
+
+/* SPAN session identifiers that correspond to MLXSW_TRAP_ID_MIRROR_SESSION<i>
+ * trap identifiers. The session identifier is an attribute of the SPAN agent,
+ * which determines the trap identifier of packets that are mirrored to the
+ * CPU. Packets that are trapped to the CPU for the same logical reason (e.g.,
+ * buffer drops) should use the same session identifier.
+ */
+enum mlxsw_sp_span_session_id {
+ MLXSW_SP_SPAN_SESSION_ID_BUFFER,
+ MLXSW_SP_SPAN_SESSION_ID_SAMPLING,
+
+ __MLXSW_SP_SPAN_SESSION_ID_MAX = 8,
+};
+
+struct mlxsw_sp_span_parms {
+ struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */
+ unsigned int ttl;
+ unsigned char dmac[ETH_ALEN];
+ unsigned char smac[ETH_ALEN];
+ union mlxsw_sp_l3addr daddr;
+ union mlxsw_sp_l3addr saddr;
+ u16 vid;
+ u16 policer_id;
+ bool policer_enable;
+ enum mlxsw_sp_span_session_id session_id;
+};
+
+enum mlxsw_sp_span_trigger {
+ MLXSW_SP_SPAN_TRIGGER_INGRESS,
+ MLXSW_SP_SPAN_TRIGGER_EGRESS,
+ MLXSW_SP_SPAN_TRIGGER_TAIL_DROP,
+ MLXSW_SP_SPAN_TRIGGER_EARLY_DROP,
+ MLXSW_SP_SPAN_TRIGGER_ECN,
+};
+
+struct mlxsw_sp_span_trigger_parms {
+ int span_id;
+ u32 probability_rate;
+};
+
+struct mlxsw_sp_span_agent_parms {
+ const struct net_device *to_dev;
+ u16 policer_id;
+ bool policer_enable;
+ enum mlxsw_sp_span_session_id session_id;
+};
+
+struct mlxsw_sp_span_entry_ops;
+
+struct mlxsw_sp_span_ops {
+ int (*init)(struct mlxsw_sp *mlxsw_sp);
+ int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp,
+ u16 policer_id_base);
+};
+
+struct mlxsw_sp_span_entry {
+ const struct net_device *to_dev;
+ const struct mlxsw_sp_span_entry_ops *ops;
+ struct mlxsw_sp_span_parms parms;
+ refcount_t ref_count;
+ int id;
+};
+
+struct mlxsw_sp_span_entry_ops {
+ bool is_static;
+ bool (*can_handle)(const struct net_device *to_dev);
+ int (*parms_set)(struct mlxsw_sp *mlxsw_sp,
+ const struct net_device *to_dev,
+ struct mlxsw_sp_span_parms *sparmsp);
+ int (*configure)(struct mlxsw_sp_span_entry *span_entry,
+ struct mlxsw_sp_span_parms sparms);
+ void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);
+};
+
+int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);
+void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);
+void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp);
+
+struct mlxsw_sp_span_entry *
+mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp,
+ const struct net_device *to_dev);
+
+void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp,
+ struct mlxsw_sp_span_entry *span_entry);
+
+int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu);
+void mlxsw_sp_span_speed_update_work(struct work_struct *work);
+
+int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id,
+ const struct mlxsw_sp_span_agent_parms *parms);
+void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id);
+int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port,
+ bool ingress);
+void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port,
+ bool ingress);
+int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp,
+ enum mlxsw_sp_span_trigger trigger,
+ struct mlxsw_sp_port *mlxsw_sp_port,
+ const struct mlxsw_sp_span_trigger_parms *parms);
+void
+mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp,
+ enum mlxsw_sp_span_trigger trigger,
+ struct mlxsw_sp_port *mlxsw_sp_port,
+ const struct mlxsw_sp_span_trigger_parms *parms);
+int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port,
+ enum mlxsw_sp_span_trigger trigger, u8 tc);
+void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port,
+ enum mlxsw_sp_span_trigger trigger, u8 tc);
+bool mlxsw_sp_span_trigger_is_ingress(enum mlxsw_sp_span_trigger trigger);
+
+extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops;
+extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops;
+extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops;
+
+#endif