9a14f2e3da
When processing counter updates, if any action set using the newly incremented counter includes an encap action, prod the corresponding neighbouring entry to indicate to the neighbour cache that the entry is still in use and passing traffic. Signed-off-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://lore.kernel.org/r/20230621121504.17004-1-edward.cree@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2022 Advanced Micro Devices, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#ifndef EFX_TC_COUNTERS_H
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#define EFX_TC_COUNTERS_H
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#include <linux/refcount.h>
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#include "net_driver.h"
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#include "mcdi_pcol.h" /* for MAE_COUNTER_TYPE_* */
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enum efx_tc_counter_type {
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EFX_TC_COUNTER_TYPE_AR = MAE_COUNTER_TYPE_AR,
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EFX_TC_COUNTER_TYPE_CT = MAE_COUNTER_TYPE_CT,
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EFX_TC_COUNTER_TYPE_OR = MAE_COUNTER_TYPE_OR,
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EFX_TC_COUNTER_TYPE_MAX
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};
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struct efx_tc_counter {
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u32 fw_id; /* index in firmware counter table */
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enum efx_tc_counter_type type;
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struct rhash_head linkage; /* efx->tc->counter_ht */
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spinlock_t lock; /* Serialises updates to counter values */
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u32 gen; /* Generation count at which this counter is current */
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u64 packets, bytes;
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u64 old_packets, old_bytes; /* Values last time passed to userspace */
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/* jiffies of the last time we saw packets increase */
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unsigned long touched;
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struct work_struct work; /* For notifying encap actions */
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/* owners of corresponding count actions */
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struct list_head users;
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};
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struct efx_tc_counter_index {
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unsigned long cookie;
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struct rhash_head linkage; /* efx->tc->counter_id_ht */
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refcount_t ref;
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struct efx_tc_counter *cnt;
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};
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/* create/uncreate/teardown hashtables */
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int efx_tc_init_counters(struct efx_nic *efx);
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void efx_tc_destroy_counters(struct efx_nic *efx);
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void efx_tc_fini_counters(struct efx_nic *efx);
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struct efx_tc_counter_index *efx_tc_flower_get_counter_index(
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struct efx_nic *efx, unsigned long cookie,
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enum efx_tc_counter_type type);
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void efx_tc_flower_put_counter_index(struct efx_nic *efx,
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struct efx_tc_counter_index *ctr);
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struct efx_tc_counter_index *efx_tc_flower_find_counter_index(
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struct efx_nic *efx, unsigned long cookie);
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extern const struct efx_channel_type efx_tc_channel_type;
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#endif /* EFX_TC_COUNTERS_H */
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