993541b2fa
Add support to rewrite Source MAC addresses. The new Source MAC address is written into a free entry in the SMT table and the corresponding SMT index is used by hardware to rewrite the Source MAC address of the packets hitting the flow. Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
45 lines
862 B
C
45 lines
862 B
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2020 Chelsio Communications.
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* All rights reserved.
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*/
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#ifndef __CXGBE_SMT_H_
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#define __CXGBE_SMT_H_
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#include "base/t4_msg.h"
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enum {
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SMT_STATE_SWITCHING,
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SMT_STATE_UNUSED,
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SMT_STATE_ERROR
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};
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enum {
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SMT_SIZE = 256
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};
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struct smt_entry {
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u16 state;
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u16 idx;
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u16 pfvf;
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u16 hw_idx;
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u8 src_mac[RTE_ETHER_ADDR_LEN];
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rte_atomic32_t refcnt;
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rte_spinlock_t lock;
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};
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struct smt_data {
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unsigned int smt_size;
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unsigned int smt_start;
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rte_rwlock_t lock;
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struct smt_entry smtab[0];
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};
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struct smt_data *t4_init_smt(u32 smt_start_idx, u32 smt_size);
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void t4_cleanup_smt(struct adapter *adap);
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void cxgbe_do_smt_write_rpl(struct adapter *adap,
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const struct cpl_smt_write_rpl *rpl);
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struct smt_entry *cxgbe_smt_alloc_switching(struct rte_eth_dev *dev, u8 *smac);
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#endif /* __CXGBE_SMT_H_ */
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