Re: [PATCH net-next v2 1/2] tcp: notify when a delayed ack is sent

2018-07-03 Thread Lawrence Brakmo
On 7/3/18, 6:15 AM, "Neal Cardwell" wrote: On Mon, Jul 2, 2018 at 7:49 PM Yuchung Cheng wrote: > > On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote: > > > > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK > > notifications to keep track if it

Re: [PATCH net-next v2 1/2] tcp: notify when a delayed ack is sent

2018-07-03 Thread Lawrence Brakmo
On 7/2/18, 4:50 PM, "Yuchung Cheng" wrote: On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote: > > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK > notifications to keep track if it needs to send an ACK for packets that > were received with a partic

Re: [PATCH net-next v2 1/2] tcp: notify when a delayed ack is sent

2018-07-03 Thread Neal Cardwell
On Mon, Jul 2, 2018 at 7:49 PM Yuchung Cheng wrote: > > On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote: > > > > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK > > notifications to keep track if it needs to send an ACK for packets that > > were received with a partic

Re: [PATCH net-next v2 1/2] tcp: notify when a delayed ack is sent

2018-07-02 Thread Yuchung Cheng
On Mon, Jul 2, 2018 at 2:39 PM, Lawrence Brakmo wrote: > > DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK > notifications to keep track if it needs to send an ACK for packets that > were received with a particular ECN state but whose ACK was delayed. > > Under some circumst

[PATCH net-next v2 1/2] tcp: notify when a delayed ack is sent

2018-07-02 Thread Lawrence Brakmo
DCTCP depends on the CA_EVENT_NON_DELAYED_ACK and CA_EVENT_DELAYED_ACK notifications to keep track if it needs to send an ACK for packets that were received with a particular ECN state but whose ACK was delayed. Under some circumstances, for example when a delayed ACK is sent with a data packet, D