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IB/cma: Add support for network namespaces

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Add support for network namespaces in the ib_cma module. This is
accomplished by:

1. Adding network namespace parameter for rdma_create_id. This parameter is
   used to populate the network namespace field in rdma_id_private.
   rdma_create_id keeps a reference on the network namespace.
2. Using the network namespace from the rdma_id instead of init_net inside
   of ib_cma, when listening on an ID and when looking for an ID for an
   incoming request.
3. Decrementing the reference count for the appropriate network namespace
   when calling rdma_destroy_id.

In order to preserve the current behavior init_net is passed when calling
from other modules.

Signed-off-by: Guy Shapiro <guysh@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Yotam Kenneth <yotamke@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Guy Shapiro
2015-10-22 15:20:10 +03:00
committed by Doug Ledford
parent 4be74b42a6
commit fa20105e09
14 changed files with 52 additions and 34 deletions
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4
net/9p/trans_rdma.c
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@@ -655,8 +655,8 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
return -ENOMEM;
/* Create the RDMA CM ID */
rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP,
IB_QPT_RC);
rdma->cm_id = rdma_create_id(&init_net, p9_cm_event_handler, client,
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(rdma->cm_id))
goto error;