diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/tc_counters.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/tc_counters.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/tc_counters.h b/drivers/net/ethernet/sfc/tc_counters.h new file mode 100644 index 0000000000..f18d71c136 --- /dev/null +++ b/drivers/net/ethernet/sfc/tc_counters.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/**************************************************************************** + * Driver for Solarflare network controllers and boards + * Copyright 2022 Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#ifndef EFX_TC_COUNTERS_H +#define EFX_TC_COUNTERS_H +#include <linux/refcount.h> +#include "net_driver.h" + +#include "mcdi_pcol.h" /* for MAE_COUNTER_TYPE_* */ + +enum efx_tc_counter_type { + EFX_TC_COUNTER_TYPE_AR = MAE_COUNTER_TYPE_AR, + EFX_TC_COUNTER_TYPE_CT = MAE_COUNTER_TYPE_CT, + EFX_TC_COUNTER_TYPE_OR = MAE_COUNTER_TYPE_OR, + EFX_TC_COUNTER_TYPE_MAX +}; + +struct efx_tc_counter { + u32 fw_id; /* index in firmware counter table */ + enum efx_tc_counter_type type; + struct rhash_head linkage; /* efx->tc->counter_ht */ + spinlock_t lock; /* Serialises updates to counter values */ + u32 gen; /* Generation count at which this counter is current */ + u64 packets, bytes; + u64 old_packets, old_bytes; /* Values last time passed to userspace */ + /* jiffies of the last time we saw packets increase */ + unsigned long touched; + struct work_struct work; /* For notifying encap actions */ + /* owners of corresponding count actions */ + struct list_head users; +}; + +struct efx_tc_counter_index { + unsigned long cookie; + struct rhash_head linkage; /* efx->tc->counter_id_ht */ + refcount_t ref; + struct efx_tc_counter *cnt; +}; + +/* create/uncreate/teardown hashtables */ +int efx_tc_init_counters(struct efx_nic *efx); +void efx_tc_destroy_counters(struct efx_nic *efx); +void efx_tc_fini_counters(struct efx_nic *efx); + +struct efx_tc_counter *efx_tc_flower_allocate_counter(struct efx_nic *efx, + int type); +void efx_tc_flower_release_counter(struct efx_nic *efx, + struct efx_tc_counter *cnt); +struct efx_tc_counter_index *efx_tc_flower_get_counter_index( + struct efx_nic *efx, unsigned long cookie, + enum efx_tc_counter_type type); +void efx_tc_flower_put_counter_index(struct efx_nic *efx, + struct efx_tc_counter_index *ctr); +struct efx_tc_counter_index *efx_tc_flower_find_counter_index( + struct efx_nic *efx, unsigned long cookie); + +extern const struct efx_channel_type efx_tc_channel_type; + +#endif /* EFX_TC_COUNTERS_H */ |