diff options
| author | Gao Feng <fgao@ikuai8.com> | 2016-08-09 07:38:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-11 03:22:14 +0300 |
| commit | ab10dccb11608b96b43b557c12a5ad867723e503 (patch) | |
| tree | db7883359e3748a0789ca78d85c97dbd480e7911 /include/uapi | |
| parent | 084c9535aab61ddd0e55eb796baa6b078b3843b1 (diff) | |
| download | linux-ab10dccb11608b96b43b557c12a5ad867723e503.tar.xz | |
rps: Inspect PPTP encapsulated by GRE to get flow hash
The PPTP is encapsulated by GRE header with that GRE_VERSION bits
must contain one. But current GRE RPS needs the GRE_VERSION must be
zero. So RPS does not work for PPTP traffic.
In my test environment, there are four MIPS cores, and all traffic
are passed through by PPTP. As a result, only one core is 100% busy
while other three cores are very idle. After this patch, the usage
of four cores are balanced well.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/if_tunnel.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h index 1046f5515174..60dbb200de60 100644 --- a/include/uapi/linux/if_tunnel.h +++ b/include/uapi/linux/if_tunnel.h @@ -24,9 +24,14 @@ #define GRE_SEQ __cpu_to_be16(0x1000) #define GRE_STRICT __cpu_to_be16(0x0800) #define GRE_REC __cpu_to_be16(0x0700) -#define GRE_FLAGS __cpu_to_be16(0x00F8) +#define GRE_ACK __cpu_to_be16(0x0080) +#define GRE_FLAGS __cpu_to_be16(0x0078) #define GRE_VERSION __cpu_to_be16(0x0007) +#define GRE_VERSION_1 __cpu_to_be16(0x0001) +#define GRE_PROTO_PPP __cpu_to_be16(0x880b) +#define GRE_PPTP_KEY_MASK __cpu_to_be32(0xffff) + struct ip_tunnel_parm { char name[IFNAMSIZ]; int link; |