6fda3f0ddd
Add API to program and manage hardware Multi Port Switch table. MPS holds destination MAC addresses to be matched against incoming packets for further rule processing. Packets not matching any entry in MPS table will be dropped by default, unless the underlying port is in promiscuous mode. Signed-off-by: Shagun Agrawal <shaguna@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Chelsio Communications.
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* All rights reserved.
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*/
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#ifndef _CXGBE_MPSTCAM_H_
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#define _CXGBE_MPSTCAM_H_
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#include "common.h"
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enum {
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MPS_ENTRY_UNUSED, /* Keep this first so memset 0 renders
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* the correct state. Other states can
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* be added in future like MPS_ENTRY_BUSY
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* to reduce contention while mboxing
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* the request to f/w or to denote attributes
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* for a specific entry
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*/
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MPS_ENTRY_USED,
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};
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struct mps_tcam_entry {
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u8 state;
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u16 idx;
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/* add data here which uniquely defines an entry */
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u8 eth_addr[ETHER_ADDR_LEN];
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u8 mask[ETHER_ADDR_LEN];
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struct mpstcam_table *mpstcam; /* backptr */
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rte_atomic32_t refcnt;
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};
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struct mpstcam_table {
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u16 size;
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rte_rwlock_t lock;
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u16 free_idx; /* next free index */
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bool full; /* since free index can be present
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* anywhere in the table, size and
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* free_idx cannot alone determine
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* if the table is full
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*/
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struct mps_tcam_entry entry[0];
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};
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struct mpstcam_table *t4_init_mpstcam(struct adapter *adap);
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void t4_cleanup_mpstcam(struct adapter *adap);
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int cxgbe_mpstcam_alloc(struct port_info *pi, const u8 *mac, const u8 *mask);
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int cxgbe_mpstcam_remove(struct port_info *pi, u16 idx);
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int cxgbe_mpstcam_modify(struct port_info *pi, int idx, const u8 *addr);
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#endif /* _CXGBE_MPSTCAM_H_ */
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