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authorThomas Graf <tgraf@suug.ch>2013-03-29 14:46:49 +0100
committerJesse Gross <jesse@nicira.com>2013-03-29 17:53:57 -0700
commitc3ff8cfe3e7748a93c4815b76e464d54c7efd241 (patch)
tree4526700f7eda3334516e16076c0917c1bae5fbac /net/openvswitch/flow.h
parent32686a9d2988516788cfcc402e1355c1eba1186a (diff)
downloadlinux-c3ff8cfe3e7748a93c4815b76e464d54c7efd241.tar.bz2
openvswitch: Refine Netlink message size calculation and kill FLOW_BUFSIZE
Kills the FLOW_BUFSIZE constant which needs to be calculated manually and replaces it with key_attr_size() based on nla_total_size(). Calculates the size of datapath messages instead of relying on NLMSG_DEFAULT_SIZE and moves the existing message size calculations into own functions for clarity. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/openvswitch/flow.h')
-rw-r--r--net/openvswitch/flow.h21
1 files changed, 0 insertions, 21 deletions
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index a7bb60ff3b5b..0875fde65b9c 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -138,27 +138,6 @@ int ovs_flow_extract(struct sk_buff *, u16 in_port, struct sw_flow_key *,
void ovs_flow_used(struct sw_flow *, struct sk_buff *);
u64 ovs_flow_used_time(unsigned long flow_jiffies);
-/* Upper bound on the length of a nlattr-formatted flow key. The longest
- * nlattr-formatted flow key would be:
- *
- * struct pad nl hdr total
- * ------ --- ------ -----
- * OVS_KEY_ATTR_PRIORITY 4 -- 4 8
- * OVS_KEY_ATTR_IN_PORT 4 -- 4 8
- * OVS_KEY_ATTR_SKB_MARK 4 -- 4 8
- * OVS_KEY_ATTR_ETHERNET 12 -- 4 16
- * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (outer VLAN ethertype)
- * OVS_KEY_ATTR_8021Q 4 -- 4 8
- * OVS_KEY_ATTR_ENCAP 0 -- 4 4 (VLAN encapsulation)
- * OVS_KEY_ATTR_ETHERTYPE 2 2 4 8 (inner VLAN ethertype)
- * OVS_KEY_ATTR_IPV6 40 -- 4 44
- * OVS_KEY_ATTR_ICMPV6 2 2 4 8
- * OVS_KEY_ATTR_ND 28 -- 4 32
- * -------------------------------------------------
- * total 152
- */
-#define FLOW_BUFSIZE 152
-
int ovs_flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *);
int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
const struct nlattr *);