linux_dsm_epyc7002/net/dccp
Arnaldo Carvalho de Melo 2babe1f6fe [DCCP]: Introduce dccp_get_info
And also hc_tx and hc_rx get_info functions for the CCIDs to fill in
information that is specific to them.

For now reusing struct tcp_info, later I'll try to figure out a better
solution, for now its really nice to get this kind of info:

[root@qemu ~]# ./ss -danemi
State       Recv-Q Send-Q  Local Addr:Port  Peer Addr:Port
LISTEN      0      0                *:5001          *:*     ino:628 sk:c1340040
         mem:(r0,w0,f0,t0) cwnd:0 ssthresh:0
ESTAB       0      0       172.20.0.2:5001 172.20.0.1:32785 ino:629 sk:c13409a0
         mem:(r0,w0,f0,t0) ts rto:1000 rtt:0.004/0 cwnd:0 ssthresh:0 rcv_rtt:61.377

This, for instance, shows that we're not congestion controlling ACKs,
as the above output is in the ttcp receiving host, and ttcp is a one
way app, i.e. the received never calls sendmsg, so
ccid_hc_tx_send_packet is never called, so the TX half connection
stays in TFRC_SSTATE_NO_SENT state and hctx_rtt is never calculated,
stays with the value set in ccid3_hc_tx_init, 4us, as show above in
milliseconds (0.004ms), upcoming patches will fix this.

rcv_rtt seems sane tho, matching ping results :-)

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 16:05:07 -07:00
..
ccids [DCCP]: Introduce dccp_get_info 2005-08-29 16:05:07 -07:00
ccid.c [DCCP]: Initial implementation 2005-08-29 15:49:46 -07:00
ccid.h [DCCP]: Introduce dccp_get_info 2005-08-29 16:05:07 -07:00
dccp.h [DCCP]: Export dccp_insert_option_timestamp to CCIDs 2005-08-29 16:04:53 -07:00
diag.c [DCCP]: Introduce dccp_get_info 2005-08-29 16:05:07 -07:00
input.c [DCCP]: Implement the CLOSING timer 2005-08-29 16:04:31 -07:00
ipv4.c [DCCP]: Fix the ACK and SEQ window variables settings 2005-08-29 16:03:42 -07:00
Kconfig [DCCP]: Introduce the DCCP Kernel hacking menu 2005-08-29 15:59:43 -07:00
Makefile [INET_DIAG]: Move the tcp_diag interface to the proper place 2005-08-29 15:57:54 -07:00
minisocks.c [DCCP]: Fix the ACK and SEQ window variables settings 2005-08-29 16:03:42 -07:00
options.c [DCCP]: Export dccp_insert_option_timestamp to CCIDs 2005-08-29 16:04:53 -07:00
output.c [DCCP]: Send a DATAACK packet when we have a TIMESTAMP_ECHO pending 2005-08-29 16:04:43 -07:00
packet_history.c [DCCP]: Just reflow the source code to fit in 80 columns 2005-08-29 15:59:26 -07:00
packet_history.h [DCCP]: Fix sparse warnings 2005-08-29 15:59:59 -07:00
proto.c [DCCP]: Fix skb leak in dccp_sendmsg 2005-08-29 16:04:38 -07:00
timer.c [DCCP]: Fix the ACK and SEQ window variables settings 2005-08-29 16:03:42 -07:00