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net: initial AF_XDP skeleton

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Buildable skeleton of AF_XDP without any functionality. Just what it
takes to register a new address family.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Björn Töpel 2018-05-02 13:01:22 +02:00 • committed by Alexei Starovoitov
parent 03f5781be2
commit 68e8b849b2
7 changed files with 34 additions and 7 deletions
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5
include/linux/socket.h
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@ -207,8 +207,9 @@ struct ucred {
* PF_SMC protocol family that
* reuses AF_INET address family
*/
#define AF_XDP 44 /* XDP sockets */
#define AF_MAX 44 /* For now.. */
#define AF_MAX 45 /* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
@ -257,6 +258,7 @@ struct ucred {
#define PF_KCM AF_KCM
#define PF_QIPCRTR AF_QIPCRTR
#define PF_SMC AF_SMC
#define PF_XDP AF_XDP
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
@ -338,6 +340,7 @@ struct ucred {
#define SOL_NFC 280
#define SOL_KCM 281
#define SOL_TLS 282
#define SOL_XDP 283
/* IPX options */
#define IPX_TYPE 1