git: 03d636e4bf57 - stable/13 - tcp: reserve tcp_info counters for AccECN

From: Marius Strobl <marius_at_FreeBSD.org>
Date: Sat, 06 Jan 2024 19:25:31 UTC
The branch stable/13 has been updated by marius:

URL: https://cgit.FreeBSD.org/src/commit/?id=03d636e4bf574775290934ef31e7a00b0eb52603

commit 03d636e4bf574775290934ef31e7a00b0eb52603
Author:     Richard Scheffenegger <rscheff@FreeBSD.org>
AuthorDate: 2022-11-04 09:18:41 +0000
Commit:     Marius Strobl <marius@FreeBSD.org>
CommitDate: 2024-01-05 22:48:34 +0000

    tcp: reserve tcp_info counters for AccECN
    
    Marking all new fields unused (__xxx).
    
    No functional change.
    
    Reviewed By:            tuexen, rrs, #transport
    Sponsored by:           NetApp, Inc.
    Differential Revision:  https://reviews.freebsd.org/D37016
    
    (cherry picked from commit 3708c3d370f26af0841cd3e97bf569d39c42953b)
---
 sys/netinet/tcp.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/sys/netinet/tcp.h b/sys/netinet/tcp.h
index febd96d47efe..16307161e6ac 100644
--- a/sys/netinet/tcp.h
+++ b/sys/netinet/tcp.h
@@ -388,8 +388,18 @@ struct tcp_info {
 	u_int32_t	tcpi_rcv_ooopack;	/* Out-of-order packets */
 	u_int32_t	tcpi_snd_zerowin;	/* Zero-sized windows sent */
 
+	/* Accurate ECN counters. */
+	u_int32_t	__tcpi_delivered_ce;
+	u_int32_t	__tcpi_received_ce;		/* # of CE marks received */
+	u_int32_t	__tcpi_delivered_e1_bytes;
+	u_int32_t	__tcpi_delivered_e0_bytes;
+	u_int32_t	__tcpi_delivered_ce_bytes;
+	u_int32_t	__tcpi_received_e1_bytes;
+	u_int32_t	__tcpi_received_e0_bytes;
+	u_int32_t	__tcpi_received_ce_bytes;
+
 	/* Padding to grow without breaking ABI. */
-	u_int32_t	__tcpi_pad[26];		/* Padding. */
+	u_int32_t	__tcpi_pad[18];		/* Padding. */
 };
 
 /*