IB/cma: Add support for network namespaces
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>
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index ba12102..52b4a2f 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -655,8 +655,8 @@
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;
diff --git a/net/rds/ib.c b/net/rds/ib.c
index 2d3f2ab..cd64ef9 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -317,7 +317,7 @@
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
- cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
+ cm_id = rdma_create_id(&init_net, NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 9043f5c..f5a9806 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -565,7 +565,7 @@
/* XXX I wonder what affect the port space has */
/* delegate cm event handler to rdma_transport */
- ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn,
+ ic->i_cm_id = rdma_create_id(&init_net, rds_rdma_cm_event_handler, conn,
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
diff --git a/net/rds/iw.c b/net/rds/iw.c
index 3df0295..576f182 100644
--- a/net/rds/iw.c
+++ b/net/rds/iw.c
@@ -223,7 +223,7 @@
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
- cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
+ cm_id = rdma_create_id(&init_net, NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
index a6553a6..aea4c91 100644
--- a/net/rds/iw_cm.c
+++ b/net/rds/iw_cm.c
@@ -524,7 +524,7 @@
/* XXX I wonder what affect the port space has */
/* delegate cm event handler to rdma_transport */
- ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn,
+ ic->i_cm_id = rdma_create_id(&init_net, rds_rdma_cm_event_handler, conn,
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c
index b9b40af..9c1fed8 100644
--- a/net/rds/rdma_transport.c
+++ b/net/rds/rdma_transport.c
@@ -142,8 +142,8 @@
struct rdma_cm_id *cm_id;
int ret;
- cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP,
- IB_QPT_RC);
+ cm_id = rdma_create_id(&init_net, rds_rdma_cm_event_handler, NULL,
+ RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id)) {
ret = PTR_ERR(cm_id);
printk(KERN_ERR "RDS/RDMA: failed to setup listener, "
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index fcc3eb8..4a41122 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -692,8 +692,8 @@
if (!cma_xprt)
return ERR_PTR(-ENOMEM);
- listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP,
- IB_QPT_RC);
+ listen_id = rdma_create_id(&init_net, rdma_listen_handler, cma_xprt,
+ RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(listen_id)) {
ret = PTR_ERR(listen_id);
dprintk("svcrdma: rdma_create_id failed = %d\n", ret);
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 81e8d31..6c06ba0 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -432,7 +432,8 @@
init_completion(&ia->ri_done);
- id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP, IB_QPT_RC);
+ id = rdma_create_id(&init_net, rpcrdma_conn_upcall, xprt, RDMA_PS_TCP,
+ IB_QPT_RC);
if (IS_ERR(id)) {
rc = PTR_ERR(id);
dprintk("RPC: %s: rdma_create_id() failed %i\n",