user/sven/linux.git/include/net/ip_fib.h, branch v3.2.63

ipv4: fix definition of FIB_TABLE_HASHSZ

2013-03-27T02:41:06Z

[ Upstream commit 5b9e12dbf92b441b37136ea71dac59f05f2673a9 ] a long time ago by the commit commit 93456b6d7753def8760b423ac6b986eb9d5a4a95 Author: Denis V. Lunev Date: Thu Jan 10 03:23:38 2008 -0800 [IPV4]: Unify access to the routing tables. the defenition of FIB_HASH_TABLE size has obtained wrong dependency: it should depend upon CONFIG_IP_MULTIPLE_TABLES (as was in the original code) but it was depended from CONFIG_IP_ROUTE_MULTIPATH This patch returns the situation to the original state. The problem was spotted by Tingwei Liu. Signed-off-by: Denis V. Lunev CC: Tingwei Liu CC: Alexey Kuznetsov Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings

ipv4: Call fib_select_default() only when actually necessary.

2011-04-14T22:05:22Z

fib_select_default() is a complete NOP, and completely pointless to invoke, when we have no more than 1 default route installed. And this is far and away the common case. So remember how many prefixlen==0 routes we have in the routing table, and elide the call when we have no more than one of those. This cuts output route creation time by 157 cycles on Niagara2+. In order to add the new int to fib_table, we have to correct the type of ->tb_data[] to unsigned long, otherwise the private area will be unaligned on 64-bit systems. Signed-off-by: David S. Miller Reviewed-by: Eric Dumazet

fib_validate_source(): pass sk_buff instead of mark

2011-04-11T01:50:59Z

This makes sk_buff available for other use in fib_validate_source(). Signed-off-by: Michael Smith Signed-off-by: David S. Miller

ipv4: Fix nexthop caching wrt. scoping.

2011-03-25T01:06:47Z

Move the scope value out of the fib alias entries and into fib_info, so that we always use the correct scope when recomputing the nexthop cached source address. Reported-by: Julian Anastasov Signed-off-by: David S. Miller

ipv4: Invalidate nexthop cache nh_saddr more correctly.

2011-03-25T00:42:21Z

Any operation that: 1) Brings up an interface 2) Adds an IP address to an interface 3) Deletes an IP address from an interface can potentially invalidate the nh_saddr value, requiring it to be recomputed. Perform the recomputation lazily using a generation ID. Reported-by: Julian Anastasov Signed-off-by: David S. Miller

ipv4: Pass ipv4 flow objects into fib_lookup() paths.

2011-03-12T23:08:47Z

To start doing these conversions, we need to add some temporary flow4_* macros which will eventually go away when all the protocol code paths are changed to work on AF specific flowi objects. Signed-off-by: David S. Miller

ipv4: Kill flowi arg to fib_select_multipath()

2011-03-11T01:03:45Z

Completely unused. Signed-off-by: David S. Miller

ipv4: Fix scope value used in route src-address caching.

2011-03-08T19:03:21Z

We have to use cfg->fc_scope not the final nh_scope value. Reported-by: Julian Anastasov Signed-off-by: David S. Miller

ipv4: Cache source address in nexthop entries.

2011-03-08T04:54:48Z

When doing output route lookups, we have to select the source address if the user has not specified an explicit one. First, if the route has an explicit preferred source address specified, then we use that. Otherwise we search the route's outgoing interface for a suitable address. This search can be precomputed and cached at route insertion time. The only missing part is that we have to refresh this precomputed value any time addresses are added or removed from the interface, and this is accomplished by fib_update_nh_saddrs(). Signed-off-by: David S. Miller

ipv4: Use const'ify fib_result deep in the route call chains.

2011-02-17T23:54:42Z

The only troublesome bit here is __mkroute_output which wants to override res->fi and res->type, compute those in local variables instead. Signed-off-by: David S. Miller