8e94c3bc92
Drop monitor has start and stop commands, but so far these were only used to start and stop monitoring of software drops. Now that drop monitor can also monitor hardware drops, we should allow the user to control these as well. Do that by adding SW and HW flags to these commands. If no flag is specified, then only start / stop monitoring software drops. This is done in order to maintain backward-compatibility with existing user space applications. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef __NET_DROPMON_H
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#define __NET_DROPMON_H
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#include <linux/types.h>
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#include <linux/netlink.h>
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struct net_dm_drop_point {
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__u8 pc[8];
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__u32 count;
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};
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#define is_drop_point_hw(x) do {\
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int ____i, ____j;\
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for (____i = 0; ____i < 8; i ____i++)\
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____j |= x[____i];\
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____j;\
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} while (0)
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#define NET_DM_CFG_VERSION 0
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#define NET_DM_CFG_ALERT_COUNT 1
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#define NET_DM_CFG_ALERT_DELAY 2
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#define NET_DM_CFG_MAX 3
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struct net_dm_config_entry {
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__u32 type;
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__u64 data __attribute__((aligned(8)));
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};
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struct net_dm_config_msg {
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__u32 entries;
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struct net_dm_config_entry options[0];
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};
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struct net_dm_alert_msg {
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__u32 entries;
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struct net_dm_drop_point points[0];
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};
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struct net_dm_user_msg {
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union {
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struct net_dm_config_msg user;
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struct net_dm_alert_msg alert;
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} u;
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};
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/* These are the netlink message types for this protocol */
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enum {
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NET_DM_CMD_UNSPEC = 0,
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NET_DM_CMD_ALERT,
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NET_DM_CMD_CONFIG,
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NET_DM_CMD_START,
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NET_DM_CMD_STOP,
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NET_DM_CMD_PACKET_ALERT,
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NET_DM_CMD_CONFIG_GET,
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NET_DM_CMD_CONFIG_NEW,
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NET_DM_CMD_STATS_GET,
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NET_DM_CMD_STATS_NEW,
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_NET_DM_CMD_MAX,
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};
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#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
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/*
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* Our group identifiers
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*/
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#define NET_DM_GRP_ALERT 1
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enum net_dm_attr {
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NET_DM_ATTR_UNSPEC,
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NET_DM_ATTR_ALERT_MODE, /* u8 */
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NET_DM_ATTR_PC, /* u64 */
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NET_DM_ATTR_SYMBOL, /* string */
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NET_DM_ATTR_IN_PORT, /* nested */
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NET_DM_ATTR_TIMESTAMP, /* struct timespec */
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NET_DM_ATTR_PROTO, /* u16 */
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NET_DM_ATTR_PAYLOAD, /* binary */
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NET_DM_ATTR_PAD,
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NET_DM_ATTR_TRUNC_LEN, /* u32 */
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NET_DM_ATTR_ORIG_LEN, /* u32 */
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NET_DM_ATTR_QUEUE_LEN, /* u32 */
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NET_DM_ATTR_STATS, /* nested */
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NET_DM_ATTR_HW_STATS, /* nested */
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NET_DM_ATTR_ORIGIN, /* u16 */
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NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */
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NET_DM_ATTR_HW_TRAP_NAME, /* string */
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NET_DM_ATTR_HW_ENTRIES, /* nested */
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NET_DM_ATTR_HW_ENTRY, /* nested */
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NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */
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NET_DM_ATTR_SW_DROPS, /* flag */
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NET_DM_ATTR_HW_DROPS, /* flag */
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__NET_DM_ATTR_MAX,
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NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
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};
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/**
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* enum net_dm_alert_mode - Alert mode.
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* @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
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* @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
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* with metadata.
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*/
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enum net_dm_alert_mode {
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NET_DM_ALERT_MODE_SUMMARY,
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NET_DM_ALERT_MODE_PACKET,
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};
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enum {
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NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
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NET_DM_ATTR_PORT_NETDEV_NAME, /* string */
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__NET_DM_ATTR_PORT_MAX,
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NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
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};
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enum {
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NET_DM_ATTR_STATS_DROPPED, /* u64 */
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__NET_DM_ATTR_STATS_MAX,
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NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
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};
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enum net_dm_origin {
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NET_DM_ORIGIN_SW,
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NET_DM_ORIGIN_HW,
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};
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#endif
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