/* * This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux. * * Copyright (c) 2017 Chelsio Communications, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __CXGB4_SMT_H #define __CXGB4_SMT_H #include <linux/spinlock.h> #include <linux/if_ether.h> #include <linux/atomic.h> struct adapter; struct cpl_smt_write_rpl; /* SMT related handling. Heavily adapted based on l2t ops in l2t.h/l2t.c */ enum { SMT_STATE_SWITCHING, SMT_STATE_UNUSED, SMT_STATE_ERROR }; enum { SMT_SIZE = 256 }; struct smt_entry { u16 state; u16 idx; u16 pfvf; u8 src_mac[ETH_ALEN]; int refcnt; spinlock_t lock; /* protect smt entry add,removal */ }; struct smt_data { unsigned int smt_size; rwlock_t lock; struct smt_entry smtab[]; }; struct smt_data *t4_init_smt(void); struct smt_entry *cxgb4_smt_alloc_switching(struct net_device *dev, u8 *smac); void cxgb4_smt_release(struct smt_entry *e); void do_smt_write_rpl(struct adapter *p, const struct cpl_smt_write_rpl *rpl); #endif /* __CXGB4_SMT_H */