mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 05:17:11 +07:00
45203a3b38
struct gnet_stats_rate_est contains u32 fields, so the bytes per second field can wrap at 34360Mbit. Add a new gnet_stats_rate_est64 structure to get 64bit bps/pps fields, and switch the kernel to use this structure natively. This structure is dumped to user space as a new attribute : TCA_STATS_RATE_EST64 Old tc command will now display the capped bps (to 34360Mbit), instead of wrapped values, and updated tc command will display correct information. Old tc command output, after patch : eric:~# tc -s -d qd sh dev lo qdisc pfifo 8001: root refcnt 2 limit 1000p Sent 80868245400 bytes 1978837 pkt (dropped 0, overlimits 0 requeues 0) rate 34360Mbit 189696pps backlog 0b 0p requeues 0 This patch carefully reorganizes "struct Qdisc" layout to get optimal performance on SMP. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
#ifndef __LINUX_GEN_STATS_H
|
|
#define __LINUX_GEN_STATS_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
enum {
|
|
TCA_STATS_UNSPEC,
|
|
TCA_STATS_BASIC,
|
|
TCA_STATS_RATE_EST,
|
|
TCA_STATS_QUEUE,
|
|
TCA_STATS_APP,
|
|
TCA_STATS_RATE_EST64,
|
|
__TCA_STATS_MAX,
|
|
};
|
|
#define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
|
|
|
|
/**
|
|
* struct gnet_stats_basic - byte/packet throughput statistics
|
|
* @bytes: number of seen bytes
|
|
* @packets: number of seen packets
|
|
*/
|
|
struct gnet_stats_basic {
|
|
__u64 bytes;
|
|
__u32 packets;
|
|
};
|
|
struct gnet_stats_basic_packed {
|
|
__u64 bytes;
|
|
__u32 packets;
|
|
} __attribute__ ((packed));
|
|
|
|
/**
|
|
* struct gnet_stats_rate_est - rate estimator
|
|
* @bps: current byte rate
|
|
* @pps: current packet rate
|
|
*/
|
|
struct gnet_stats_rate_est {
|
|
__u32 bps;
|
|
__u32 pps;
|
|
};
|
|
|
|
/**
|
|
* struct gnet_stats_rate_est64 - rate estimator
|
|
* @bps: current byte rate
|
|
* @pps: current packet rate
|
|
*/
|
|
struct gnet_stats_rate_est64 {
|
|
__u64 bps;
|
|
__u64 pps;
|
|
};
|
|
|
|
/**
|
|
* struct gnet_stats_queue - queuing statistics
|
|
* @qlen: queue length
|
|
* @backlog: backlog size of queue
|
|
* @drops: number of dropped packets
|
|
* @requeues: number of requeues
|
|
* @overlimits: number of enqueues over the limit
|
|
*/
|
|
struct gnet_stats_queue {
|
|
__u32 qlen;
|
|
__u32 backlog;
|
|
__u32 drops;
|
|
__u32 requeues;
|
|
__u32 overlimits;
|
|
};
|
|
|
|
/**
|
|
* struct gnet_estimator - rate estimator configuration
|
|
* @interval: sampling period
|
|
* @ewma_log: the log of measurement window weight
|
|
*/
|
|
struct gnet_estimator {
|
|
signed char interval;
|
|
unsigned char ewma_log;
|
|
};
|
|
|
|
|
|
#endif /* __LINUX_GEN_STATS_H */
|