125730d8bSEdward Cree /* SPDX-License-Identifier: GPL-2.0-only */ 225730d8bSEdward Cree /**************************************************************************** 325730d8bSEdward Cree * Driver for Solarflare network controllers and boards 425730d8bSEdward Cree * Copyright 2022 Advanced Micro Devices, Inc. 525730d8bSEdward Cree * 625730d8bSEdward Cree * This program is free software; you can redistribute it and/or modify it 725730d8bSEdward Cree * under the terms of the GNU General Public License version 2 as published 825730d8bSEdward Cree * by the Free Software Foundation, incorporated herein by reference. 925730d8bSEdward Cree */ 1025730d8bSEdward Cree 1125730d8bSEdward Cree #ifndef EFX_TC_COUNTERS_H 1225730d8bSEdward Cree #define EFX_TC_COUNTERS_H 1319a0c989SEdward Cree #include <linux/refcount.h> 1425730d8bSEdward Cree #include "net_driver.h" 1525730d8bSEdward Cree 1625730d8bSEdward Cree #include "mcdi_pcol.h" /* for MAE_COUNTER_TYPE_* */ 1725730d8bSEdward Cree 1825730d8bSEdward Cree enum efx_tc_counter_type { 1925730d8bSEdward Cree EFX_TC_COUNTER_TYPE_AR = MAE_COUNTER_TYPE_AR, 2025730d8bSEdward Cree EFX_TC_COUNTER_TYPE_CT = MAE_COUNTER_TYPE_CT, 2125730d8bSEdward Cree EFX_TC_COUNTER_TYPE_OR = MAE_COUNTER_TYPE_OR, 2225730d8bSEdward Cree EFX_TC_COUNTER_TYPE_MAX 2325730d8bSEdward Cree }; 2425730d8bSEdward Cree 2519a0c989SEdward Cree struct efx_tc_counter { 2619a0c989SEdward Cree u32 fw_id; /* index in firmware counter table */ 2719a0c989SEdward Cree enum efx_tc_counter_type type; 2819a0c989SEdward Cree struct rhash_head linkage; /* efx->tc->counter_ht */ 29c4bad432SEdward Cree spinlock_t lock; /* Serialises updates to counter values */ 300363aa29SEdward Cree u32 gen; /* Generation count at which this counter is current */ 31c4bad432SEdward Cree u64 packets, bytes; 3250f8f2f7SEdward Cree u64 old_packets, old_bytes; /* Values last time passed to userspace */ 33c4bad432SEdward Cree /* jiffies of the last time we saw packets increase */ 34c4bad432SEdward Cree unsigned long touched; 359a14f2e3SEdward Cree struct work_struct work; /* For notifying encap actions */ 369a14f2e3SEdward Cree /* owners of corresponding count actions */ 379a14f2e3SEdward Cree struct list_head users; 3819a0c989SEdward Cree }; 3919a0c989SEdward Cree 4019a0c989SEdward Cree struct efx_tc_counter_index { 4119a0c989SEdward Cree unsigned long cookie; 4219a0c989SEdward Cree struct rhash_head linkage; /* efx->tc->counter_id_ht */ 4319a0c989SEdward Cree refcount_t ref; 4419a0c989SEdward Cree struct efx_tc_counter *cnt; 4519a0c989SEdward Cree }; 4619a0c989SEdward Cree 4719a0c989SEdward Cree /* create/uncreate/teardown hashtables */ 4819a0c989SEdward Cree int efx_tc_init_counters(struct efx_nic *efx); 4919a0c989SEdward Cree void efx_tc_destroy_counters(struct efx_nic *efx); 5019a0c989SEdward Cree void efx_tc_fini_counters(struct efx_nic *efx); 5119a0c989SEdward Cree 52*1909387fSEdward Cree struct efx_tc_counter *efx_tc_flower_allocate_counter(struct efx_nic *efx, 53*1909387fSEdward Cree int type); 54*1909387fSEdward Cree void efx_tc_flower_release_counter(struct efx_nic *efx, 55*1909387fSEdward Cree struct efx_tc_counter *cnt); 560363aa29SEdward Cree struct efx_tc_counter_index *efx_tc_flower_get_counter_index( 570363aa29SEdward Cree struct efx_nic *efx, unsigned long cookie, 580363aa29SEdward Cree enum efx_tc_counter_type type); 590363aa29SEdward Cree void efx_tc_flower_put_counter_index(struct efx_nic *efx, 600363aa29SEdward Cree struct efx_tc_counter_index *ctr); 6150f8f2f7SEdward Cree struct efx_tc_counter_index *efx_tc_flower_find_counter_index( 6250f8f2f7SEdward Cree struct efx_nic *efx, unsigned long cookie); 630363aa29SEdward Cree 6425730d8bSEdward Cree extern const struct efx_channel_type efx_tc_channel_type; 6525730d8bSEdward Cree 6625730d8bSEdward Cree #endif /* EFX_TC_COUNTERS_H */ 67