diff mbox series

[net-next,04/15] ipv6: add struct hop_jumbo_hdr definition

Message ID 20220203015140.3022854-5-eric.dumazet@gmail.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series tcp: BIG TCP implementation | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 2109 this patch: 2109
netdev/cc_maintainers warning 2 maintainers not CCed: dsahern@kernel.org yoshfuji@linux-ipv6.org
netdev/build_clang success Errors and warnings before: 307 this patch: 307
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 2236 this patch: 2236
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 17 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Eric Dumazet Feb. 3, 2022, 1:51 a.m. UTC 
From: Eric Dumazet <edumazet@google.com>

Following patches will need to add and remove local IPv6 jumbogram
options to enable BIG TCP.

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
 include/net/ipv6.h | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 082f30256f59fad18b78746b6650aee840932eba..ea2a4351b654f8bc96503aae2b9adcd478e1f8b2 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -151,6 +151,17 @@  struct frag_hdr {
 	__be32	identification;
 };
 
+/*
+ * Jumbo payload option, as described in RFC 2676 2.
+ */
+struct hop_jumbo_hdr {
+	u8	nexthdr;
+	u8	hdrlen;
+	u8	tlv_type;	/* IPV6_TLV_JUMBO, 0xC2 */
+	u8	tlv_len;	/* 4 */
+	__be32	jumbo_payload_len;
+};
+
 #define	IP6_MF		0x0001
 #define	IP6_OFFSET	0xFFF8