On Wed, 1 May 2024 00:43:36 -0700 Miao Xu wrote: > This patch adds two new arguments for cong_control of struct > tcp_congestion_ops: > - ack > - flag > These two arguments are inherited from the caller tcp_cong_control in > tcp_intput.c. One use case of them is to update cwnd and pacing rate > inside cong_control based on the info they provide. For example, the > flag can be used to decide if it is the right time to raise or reduce a > sender's cwnd. > > Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx> > -- three dashes here --- > Changes in v2: > * Split the v1 patch into 2 separate patches. In particular, spin out > bpf_tcp_ca.c as a separate patch because it is bpf specific. > > Signed-off-by: Miao Xu <miaxu@xxxxxxxx> This goes after Eric's review tag. Looks like you need to adjust one of the BPF selftests: Error: #29/14 bpf_tcp_ca/tcp_ca_kfunc Error: #29/14 bpf_tcp_ca/tcp_ca_kfunc libbpf: extern (func ksym) 'bbr_main': func_proto [213] incompatible with vmlinux [48152] libbpf: failed to load object 'tcp_ca_kfunc' libbpf: failed to load BPF skeleton 'tcp_ca_kfunc': -22 test_tcp_ca_kfunc:FAIL:tcp_ca_kfunc__open_and_load unexpected error: -22
