1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/net/cxgbe/l2t.h b/drivers/net/cxgbe/l2t.h
new file mode 100644
index 00000000..22a34e38
--- /dev/null
+++ b/drivers/net/cxgbe/l2t.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Chelsio Communications.
+ * All rights reserved.
+ */
+#ifndef _CXGBE_L2T_H_
+#define _CXGBE_L2T_H_
+
+#include "t4_msg.h"
+
+enum {
+	L2T_SIZE = 4096       /* # of L2T entries */
+};
+
+enum {
+	L2T_STATE_VALID,      /* entry is up to date */
+	L2T_STATE_SYNC_WRITE, /* synchronous write of entry underway */
+
+	/* when state is one of the below the entry is not hashed */
+	L2T_STATE_SWITCHING,  /* entry is being used by a switching filter */
+	L2T_STATE_UNUSED      /* entry not in use */
+};
+
+/*
+ * State for the corresponding entry of the HW L2 table.
+ */
+struct l2t_entry {
+	u16 state;                  /* entry state */
+	u16 idx;                    /* entry index within in-memory table */
+	u16 vlan;                   /* VLAN TCI (id: bits 0-11, prio: 13-15 */
+	u8  lport;                  /* destination port */
+	u8  dmac[ETHER_ADDR_LEN];   /* destination MAC address */
+	rte_spinlock_t lock;        /* entry lock */
+	rte_atomic32_t refcnt;      /* entry reference count */
+};
+
+struct l2t_data {
+	unsigned int l2t_start;     /* start index of our piece of the L2T */
+	unsigned int l2t_size;      /* number of entries in l2tab */
+	rte_rwlock_t lock;          /* table rw lock */
+	struct l2t_entry l2tab[0];  /* MUST BE LAST */
+};
+
+#define L2T_LPBK	true
+#define L2T_ARPMISS	true
+
+/* identifies sync vs async L2T_WRITE_REQs */
+#define S_SYNC_WR    12
+#define V_SYNC_WR(x) ((x) << S_SYNC_WR)
+#define F_SYNC_WR    V_SYNC_WR(1)
+
+struct l2t_data *t4_init_l2t(unsigned int l2t_start, unsigned int l2t_end);
+void t4_cleanup_l2t(struct adapter *adap);
+struct l2t_entry *cxgbe_l2t_alloc_switching(struct rte_eth_dev *dev, u16 vlan,
+					    u8 port, u8 *dmac);
+void cxgbe_l2t_release(struct l2t_entry *e);
+void do_l2t_write_rpl(struct adapter *p, const struct cpl_l2t_write_rpl *rpl);
+#endif /* _CXGBE_L2T_H_ */