mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-02-05 09:25:27 +07:00
e9feb58020
Previous patch made the length of the per-CPU skb drop list configurable. Expose a counter that shows how many packets could not be enqueued to this list. This allows users determine the desired queue length. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
#ifndef __NET_DROPMON_H
|
|
#define __NET_DROPMON_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/netlink.h>
|
|
|
|
struct net_dm_drop_point {
|
|
__u8 pc[8];
|
|
__u32 count;
|
|
};
|
|
|
|
#define is_drop_point_hw(x) do {\
|
|
int ____i, ____j;\
|
|
for (____i = 0; ____i < 8; i ____i++)\
|
|
____j |= x[____i];\
|
|
____j;\
|
|
} while (0)
|
|
|
|
#define NET_DM_CFG_VERSION 0
|
|
#define NET_DM_CFG_ALERT_COUNT 1
|
|
#define NET_DM_CFG_ALERT_DELAY 2
|
|
#define NET_DM_CFG_MAX 3
|
|
|
|
struct net_dm_config_entry {
|
|
__u32 type;
|
|
__u64 data __attribute__((aligned(8)));
|
|
};
|
|
|
|
struct net_dm_config_msg {
|
|
__u32 entries;
|
|
struct net_dm_config_entry options[0];
|
|
};
|
|
|
|
struct net_dm_alert_msg {
|
|
__u32 entries;
|
|
struct net_dm_drop_point points[0];
|
|
};
|
|
|
|
struct net_dm_user_msg {
|
|
union {
|
|
struct net_dm_config_msg user;
|
|
struct net_dm_alert_msg alert;
|
|
} u;
|
|
};
|
|
|
|
|
|
/* These are the netlink message types for this protocol */
|
|
|
|
enum {
|
|
NET_DM_CMD_UNSPEC = 0,
|
|
NET_DM_CMD_ALERT,
|
|
NET_DM_CMD_CONFIG,
|
|
NET_DM_CMD_START,
|
|
NET_DM_CMD_STOP,
|
|
NET_DM_CMD_PACKET_ALERT,
|
|
NET_DM_CMD_CONFIG_GET,
|
|
NET_DM_CMD_CONFIG_NEW,
|
|
NET_DM_CMD_STATS_GET,
|
|
NET_DM_CMD_STATS_NEW,
|
|
_NET_DM_CMD_MAX,
|
|
};
|
|
|
|
#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
|
|
|
|
/*
|
|
* Our group identifiers
|
|
*/
|
|
#define NET_DM_GRP_ALERT 1
|
|
|
|
enum net_dm_attr {
|
|
NET_DM_ATTR_UNSPEC,
|
|
|
|
NET_DM_ATTR_ALERT_MODE, /* u8 */
|
|
NET_DM_ATTR_PC, /* u64 */
|
|
NET_DM_ATTR_SYMBOL, /* string */
|
|
NET_DM_ATTR_IN_PORT, /* nested */
|
|
NET_DM_ATTR_TIMESTAMP, /* struct timespec */
|
|
NET_DM_ATTR_PROTO, /* u16 */
|
|
NET_DM_ATTR_PAYLOAD, /* binary */
|
|
NET_DM_ATTR_PAD,
|
|
NET_DM_ATTR_TRUNC_LEN, /* u32 */
|
|
NET_DM_ATTR_ORIG_LEN, /* u32 */
|
|
NET_DM_ATTR_QUEUE_LEN, /* u32 */
|
|
NET_DM_ATTR_STATS, /* nested */
|
|
|
|
__NET_DM_ATTR_MAX,
|
|
NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
|
|
};
|
|
|
|
/**
|
|
* enum net_dm_alert_mode - Alert mode.
|
|
* @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
|
|
* @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
|
|
* with metadata.
|
|
*/
|
|
enum net_dm_alert_mode {
|
|
NET_DM_ALERT_MODE_SUMMARY,
|
|
NET_DM_ALERT_MODE_PACKET,
|
|
};
|
|
|
|
enum {
|
|
NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
|
|
|
|
__NET_DM_ATTR_PORT_MAX,
|
|
NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
|
|
};
|
|
|
|
enum {
|
|
NET_DM_ATTR_STATS_DROPPED, /* u64 */
|
|
|
|
__NET_DM_ATTR_STATS_MAX,
|
|
NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
|
|
};
|
|
|
|
#endif
|