mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-02-14 06:44:44 -05:00
4fa4ac5e58
Add 2-bit tcpi_ecn_mode feild within tcp_info to indicate which ECN mode is negotiated: ECN_MODE_DISABLED, ECN_MODE_RFC3168, ECN_MODE_ACCECN, or ECN_MODE_PENDING. This is done by utilizing available bits from tcpi_accecn_opt_seen (reduced from 16 bits to 2 bits) and tcpi_accecn_fail_mode (reduced from 16 bits to 4 bits). Also, an extra 24-bit tcpi_options2 field is identified to represent newer options and connection features, as all 8 bits of tcpi_options field have been used. Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Co-developed-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20260131222515.8485-14-chia-yu.chang@nokia-bell-labs.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>