IB: Add caching of ports' LMC

Add an LMC cache to struct ib_device, and add a function
ib_get_cached_lmc() to query the cache.

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 6bbf1b364400..aeb4fcd86a9e 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -827,6 +827,7 @@ struct ib_cache {
         struct ib_event_handler event_handler;
         struct ib_pkey_cache  **pkey_cache;
         struct ib_gid_cache   **gid_cache;
+        u8                     *lmc_cache;
 };
 
 struct ib_device {