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authorPatrisious Haddad <phaddad@nvidia.com>2022-06-07 14:32:44 +0300
committerLeon Romanovsky <leonro@nvidia.com>2022-06-16 09:54:42 +0300
commit925d046e7e52c71c3531199ce137e141807ef740 (patch)
tree347be7f1443aa9c5d295e5ad5827b99330a92b84 /include/rdma
parentfc008bdbf1cd02e36bbfe53ea006b258335d908e (diff)
downloadlwn-925d046e7e52c71c3531199ce137e141807ef740.tar.gz
lwn-925d046e7e52c71c3531199ce137e141807ef740.zip
RDMA/core: Add a netevent notifier to cma
Add a netevent callback for cma, mainly to catch NETEVENT_NEIGH_UPDATE. Previously, when a system with failover MAC mechanism change its MAC address during a CM connection attempt, the RDMA-CM would take a lot of time till it disconnects and timesout due to the incorrect MAC address. Now when we get a NETEVENT_NEIGH_UPDATE we check if it is due to a failover MAC change and if so, we instantly destroy the CM and notify the user in order to spare the unnecessary waiting for the timeout. Link: https://lore.kernel.org/r/bb255c9e301cd50b905663b8e73f7f5133d0e4c5.1654601342.git.leonro@nvidia.com Signed-off-by: Patrisious Haddad <phaddad@nvidia.com> Reviewed-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/rdma_cm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index d989f030fae0..5b18e2e36ee6 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -108,6 +108,7 @@ struct rdma_cm_id {
enum rdma_ucm_port_space ps;
enum ib_qp_type qp_type;
u32 port_num;
+ struct work_struct net_work;
};
struct rdma_cm_id *