diff options
| author | Jason Xing <kerneljasonxing@gmail.com> | 2025-03-17 15:03:14 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-03-25 14:27:20 +0300 |
| commit | 9552f90835ef3552d0af327e48dc360717777d62 (patch) | |
| tree | d3520dc3d4e998663707372a6b6e95e190ea92f4 /include/uapi/linux | |
| parent | f38805c5d26fe4af97837c10d58074a7496638bf (diff) | |
| download | linux-9552f90835ef3552d0af327e48dc360717777d62.tar.xz | |
tcp: support TCP_DELACK_MAX_US for set/getsockopt use
Support adjusting/reading delayed ack max for socket level by using
set/getsockopt().
This option aligns with TCP_BPF_DELACK_MAX usage. Considering that bpf
option was implemented before this patch, so we need to use a standalone
new option for pure tcp set/getsockopt() use.
Add WRITE_ONCE/READ_ONCE() to prevent data-race if setsockopt()
happens to write one value to icsk_delack_max while icsk_delack_max is
being read.
Signed-off-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250317120314.41404-3-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/tcp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index a126b3860e63..dc8fdc80e16b 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -141,6 +141,7 @@ enum { #define TCP_IS_MPTCP 43 /* Is MPTCP being used? */ #define TCP_RTO_MAX_MS 44 /* max rto time in ms */ #define TCP_RTO_MIN_US 45 /* min rto time in us */ +#define TCP_DELACK_MAX_US 46 /* max delayed ack time in us */ #define TCP_REPAIR_ON 1 #define TCP_REPAIR_OFF 0 |