mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 01:36:38 +07:00
d23ff70164
Add support for genl "tcp_metrics". No locking is changed, only that now we can unlink and delete entries after grace period. We implement get/del for single entry and dump to support show/flush filtering in user space. Del without address attribute causes flush for all addresses, sadly under genl_mutex. v2: - remove rcu_assign_pointer as suggested by Eric Dumazet, it is not needed because there are no other writes under lock - move the flushing code in tcp_metrics_flush_all v3: - remove synchronize_rcu on flush as suggested by Eric Dumazet Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* tcp_metrics.h - TCP Metrics Interface */
|
|
|
|
#ifndef _LINUX_TCP_METRICS_H
|
|
#define _LINUX_TCP_METRICS_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* NETLINK_GENERIC related info
|
|
*/
|
|
#define TCP_METRICS_GENL_NAME "tcp_metrics"
|
|
#define TCP_METRICS_GENL_VERSION 0x1
|
|
|
|
enum tcp_metric_index {
|
|
TCP_METRIC_RTT,
|
|
TCP_METRIC_RTTVAR,
|
|
TCP_METRIC_SSTHRESH,
|
|
TCP_METRIC_CWND,
|
|
TCP_METRIC_REORDERING,
|
|
|
|
/* Always last. */
|
|
__TCP_METRIC_MAX,
|
|
};
|
|
|
|
#define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1)
|
|
|
|
enum {
|
|
TCP_METRICS_ATTR_UNSPEC,
|
|
TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */
|
|
TCP_METRICS_ATTR_ADDR_IPV6, /* binary */
|
|
TCP_METRICS_ATTR_AGE, /* msecs */
|
|
TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */
|
|
TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */
|
|
TCP_METRICS_ATTR_VALS, /* nested +1, u32 */
|
|
TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */
|
|
TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */
|
|
TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */
|
|
TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */
|
|
|
|
__TCP_METRICS_ATTR_MAX,
|
|
};
|
|
|
|
#define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1)
|
|
|
|
enum {
|
|
TCP_METRICS_CMD_UNSPEC,
|
|
TCP_METRICS_CMD_GET,
|
|
TCP_METRICS_CMD_DEL,
|
|
|
|
__TCP_METRICS_CMD_MAX,
|
|
};
|
|
|
|
#define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1)
|
|
|
|
#endif /* _LINUX_TCP_METRICS_H */
|