| /* |
| ************************************************************************** |
| * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| ************************************************************************** |
| */ |
| |
| /** |
| * @file nss_ipv4_reasm.h |
| * NSS IPv4 reassembly interface definitions. |
| */ |
| |
| #ifndef __NSS_IPV4_REASM_H |
| #define __NSS_IPV4_REASM_H |
| |
| /** |
| * @addtogroup nss_ipv4_reasm_subsystem |
| * @{ |
| */ |
| |
| /* |
| * nss_ipv4_reasm_stats_types |
| * IPv4 reassembly node statistics. |
| */ |
| enum nss_ipv4_reasm_stats_types { |
| NSS_IPV4_REASM_STATS_EVICTIONS, /**< Number of evicted fragment queues due to set memory threshold. */ |
| NSS_IPV4_REASM_STATS_ALLOC_FAILS, /**< Number of fragment queue allocation failures. */ |
| NSS_IPV4_REASM_STATS_TIMEOUTS, /**< Number of expired fragment queues. */ |
| NSS_IPV4_REASM_STATS_MAX, /**< Maximum message type. */ |
| }; |
| |
| /** |
| * nss_ipv4_reasm_stats_notification |
| * Data for sending IPv4 reassembly statistics. |
| */ |
| struct nss_ipv4_reasm_stats_notification { |
| uint32_t core_id; /**< Core ID. */ |
| uint64_t cmn_node_stats[NSS_STATS_NODE_MAX]; /**< Common node statistics. */ |
| uint64_t ipv4_reasm_stats[NSS_IPV4_REASM_STATS_MAX]; /**< IPv4 reassembly statistics. */ |
| }; |
| |
| #ifdef __KERNEL__ /* only kernel will use. */ |
| |
| /** |
| * nss_ipv4_reasm_stats_register_notifier |
| * Registers a statistics notifier. |
| * |
| * @datatypes |
| * notifier_block |
| * |
| * @param[in] nb Notifier block. |
| * |
| * @return |
| * 0 on success or -2 on failure. |
| */ |
| extern int nss_ipv4_reasm_stats_register_notifier(struct notifier_block *nb); |
| |
| /** |
| * nss_ipv4_reasm_stats_unregister_notifier |
| * Deregisters a statistics notifier. |
| * |
| * @datatypes |
| * notifier_block |
| * |
| * @param[in] nb Notifier block. |
| * |
| * @return |
| * 0 on success or -2 on failure. |
| */ |
| extern int nss_ipv4_reasm_stats_unregister_notifier(struct notifier_block *nb); |
| |
| #endif /*__KERNEL__ */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* __NSS_IPV4_REASM_H */ |
