| /* |
| *************************************************************************** |
| * Copyright (c) 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. |
| *************************************************************************** |
| */ |
| |
| #include <linux/etherdevice.h> |
| |
| #include <nss_api_if.h> |
| #include <nss_cmn.h> |
| |
| #if (NSS_MIRROR_DEBUG_LEVEL < 1) |
| #define nss_mirror_assert(fmt, args...) |
| #else |
| #define nss_mirror_assert(c) if (!(c)) { BUG_ON(!(c)); } |
| #endif /* NSS_MIRROR_DEBUG_LEVEL */ |
| |
| /* |
| * Compile messages for dynamic enable/disable |
| */ |
| #if defined(CONFIG_DYNAMIC_DEBUG) |
| #define nss_mirror_warn(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #define nss_mirror_info(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #define nss_mirror_trace(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #else /* CONFIG_DYNAMIC_DEBUG */ |
| /* |
| * Statically compile messages at different levels |
| */ |
| #if (NSS_MIRROR_DEBUG_LEVEL < 2) |
| #define nss_mirror_warn(s, ...) |
| #else |
| #define nss_mirror_warn(s, ...) pr_warn("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #endif |
| |
| #if (NSS_MIRROR_DEBUG_LEVEL < 3) |
| #define nss_mirror_info(s, ...) |
| #else |
| #define nss_mirror_info(s, ...) pr_notice("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #endif |
| |
| #if (NSS_MIRROR_DEBUG_LEVEL < 4) |
| #define nss_mirror_trace(s, ...) |
| #else |
| #define nss_mirror_trace(s, ...) pr_info("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__) |
| #endif |
| #endif /* CONFIG_DYNAMIC_DEBUG */ |
| |
| /* |
| * Mirror configure modes. |
| */ |
| #define NSS_MIRROR_MODE_NONE 0x0 |
| #define NSS_MIRROR_MODE_INGRESS_PMC 0x1 |
| |
| /* |
| * nss_mirror_instance_priv |
| * Private structure of mirror net device. |
| */ |
| struct nss_mirror_instance_priv { |
| struct rtnl_link_stats64 stats; /* Netdev stats. */ |
| uint32_t mirror_instance_if_num; /* NSS interface number for this mirror device. */ |
| enum nss_mirror_pkt_clone_point mirror_point; /* Point in the packet to copy from. */ |
| uint16_t mirror_size; /* Number of bytes to copy. */ |
| uint16_t mirror_offset; /* Copy offset. */ |
| uint8_t rule_config_mode; /* Configure mode. */ |
| uint8_t mirror_arr_index; /* Netdev index in mirror array. */ |
| }; |
| |
| /* |
| * nss_mirror_display_info() |
| * API to display configure information for the given mirror device. |
| */ |
| extern void nss_mirror_display_info(struct net_device *mirror_dev); |
| |
| /* |
| * nss_mirror_display_all_info() |
| * API to display configure information for all mirror devices. |
| */ |
| extern void nss_mirror_display_all_info(void); |
| |
| /* |
| * nss_mirror_reset_if_nexthop() |
| * API to send reset nexthop command to NSS firmware. |
| * TODO: Remove this API and its usage and use NSS driver API, once |
| * similar API is added into NSS driver. |
| */ |
| extern nss_tx_status_t nss_mirror_reset_if_nexthop(uint32_t if_num); |
| |
| /* |
| * nss_mirror_deconfigure_mirror() |
| * API to deconfigure mirror device. |
| */ |
| extern int nss_mirror_deconfigure_mirror(struct net_device *mirror_dev); |
| |
| /* |
| * nss_mirror_destroy_all() |
| * API to destroy all the configured mirror devices. |
| */ |
| extern int nss_mirror_destroy_all(void); |