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| author |   Gao Feng <fgao@ikuai8.com> | 2016-08-09 12:38:24 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-08-10 17:22:14 -0700 |
| commit | ab10dccb11608b96b43b557c12a5ad867723e503 (patch) | |
| tree | db7883359e3748a0789ca78d85c97dbd480e7911 /include/net/gre.h | |
| parent | Merge branch 'qdisc-hashtable' (diff) | |
| download | linux-dev-ab10dccb11608b96b43b557c12a5ad867723e503.tar.xz linux-dev-ab10dccb11608b96b43b557c12a5ad867723e503.zip | |
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/net/gre.h')
| -rw-r--r-- | include/net/gre.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/net/gre.h b/include/net/gre.h index 7a54a31d1d4c..8962e1e68449 100644 --- a/include/net/gre.h +++ b/include/net/gre.h @@ -7,7 +7,15 @@ struct gre_base_hdr { __be16 flags; __be16 protocol; -}; +} __packed; + +struct gre_full_hdr { + struct gre_base_hdr fixed_header; + __be16 csum; + __be16 reserved1; + __be32 key; + __be32 seq; +} __packed; #define GRE_HEADER_SECTION 4 #define GREPROTO_CISCO 0 |