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  1. 18 10月, 2016 20 次提交
  3. 17 10月, 2016 10 次提交
  5. 16 10月, 2016 4 次提交
    • J
      ipvlan: constify l3mdev_ops structure · ab530f63
      由 Julia Lawall 提交于 
      This l3mdev_ops structure is only stored in the l3mdev_ops field of a
net_device structure.  This field is declared const, so the l3mdev_ops
structure can be declared as const also.  Additionally drop the
__read_mostly annotation.

The semantic patch that adds const is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct l3mdev_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device *e;
position p;
@@
e->l3mdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct l3mdev_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct l3mdev_ops i = { ... };
// </smpl>

The effect on the layout of the .o file is shown by the following output
of the size command, first before then after the transformation:

   text    data     bss     dec     hex filename
   7364     466      52    7882    1eca drivers/net/ipvlan/ipvlan_main.o
   7412     434      52    7898    1eda drivers/net/ipvlan/ipvlan_main.o
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ab530f63
    • D
      Merge branch 'ila-cached-route' · f9dbd5a3
      由 David S. Miller 提交于 
      Tom Herbert says:

====================
ila: Cache a route in ILA lwt structure

Add a dst_cache to ila_lwt structure. This holds a cached route for the
translated address. In ila_output we now perform a route lookup after
translation and if possible (destination in original route is full 128
bits) we set the dst_cache. Subsequent calls to ila_output can then use
the cache to avoid the route lookup.

This eliminates the need to set the gateway on ILA routes as previously
was being done. Now we can do somthing like:

./ip route add 3333::2000:0:0:2/128 encap ila 2222:0:0:2 \
    csum-mode neutral-map dev eth0  ## No via needed!

Also, add destroy_state to lwt ops. We need this do destroy the
dst_cache.

- v2
  - Fixed comparisons to fc_dst_len to make comparison against number
    of bits in data structure not bytes.
  - Move destroy_state under build_state (requested by Jiri)
  - Other minor cleanup

Tested:

Running 200 TCP_RR streams:

  Baseline, no ILA

    1730716 tps
    102/170/313 50/90/99% latencies
    88.11 CPU utilization

  Using ILA in both directions

    1680428 tps
    105/176/325 50/90/99% latencies
    88.16 CPU utilization
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f9dbd5a3
    • T
      ila: Cache a route to translated address · 79ff2fc3
      由 Tom Herbert 提交于 
      Add a dst_cache to ila_lwt structure. This holds a cached route for the
translated address. In ila_output we now perform a route lookup after
translation and if possible (destination in original route is full 128
bits) we set the dst_cache. Subsequent calls to ila_output can then use
the cache to avoid the route lookup.

This eliminates the need to set the gateway on ILA routes as previously
was being done. Now we can do something like:

./ip route add 3333::2000:0:0:2/128 encap ila 2222:0:0:2 \
    csum-mode neutral-map dev eth0  ## No via needed!
Signed-off-by: NTom Herbert <tom@herbertland.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      79ff2fc3
    • T
      lwtunnel: Add destroy state operation · 1104d9ba
      由 Tom Herbert 提交于 
      Users of lwt tunnels may set up some secondary state in build_state
function. Add a corresponding destroy_state function to allow users to
clean up state. This destroy state function is called from lwstate_free.
Also, we now free lwstate using kfree_rcu so user can assume structure
is not freed before rcu.
Acked-by: NRoopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: NTom Herbert <tom@herbertland.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1104d9ba
  7. 15 10月, 2016 6 次提交