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RDMA/cma: Pass QP type into rdma_create_id()

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The RDMA CM currently infers the QP type from the port space selected
by the user.  In the future (eg with RDMA_PS_IB or XRC), there may not
be a 1-1 correspondence between port space and QP type.  For netlink
export of RDMA CM state, we want to export the QP type to userspace,
so it is cleaner to explicitly associate a QP type to an ID.

Modify rdma_create_id() to allow the user to specify the QP type, and
use it to make our selections of datagram versus connected mode.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sean Hefty
2010-04-01 17:08:41 +00:00
committed by Roland Dreier
parent 9a7147b506
commit b26f9b9949
12 changed files with 55 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/9p/trans_rdma.c
+2 -1
View File
@@ -591,7 +591,8 @@ 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);
rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP,
IB_QPT_RC);
if (IS_ERR(rdma->cm_id))
goto error;
net/rds/ib.c
+1 -1
View File
@@ -325,7 +325,7 @@ static int rds_ib_laddr_check(__be32 addr)
/* 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);
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
net/rds/ib_cm.c
+1 -1
View File
@@ -587,7 +587,7 @@ int rds_ib_conn_connect(struct rds_connection *conn)
/* 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,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
ic->i_cm_id = NULL;
net/rds/iw.c
+1 -1
View File
@@ -226,7 +226,7 @@ static int rds_iw_laddr_check(__be32 addr)
/* 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);
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
net/rds/iw_cm.c
+1 -1
View File
@@ -522,7 +522,7 @@ int rds_iw_conn_connect(struct rds_connection *conn)
/* 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,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
ic->i_cm_id = NULL;
net/rds/rdma_transport.c
+2 -1
View File
@@ -158,7 +158,8 @@ static int rds_rdma_listen_init(void)
struct rdma_cm_id *cm_id;
int ret;
cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP);
cm_id = rdma_create_id(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, "
net/sunrpc/xprtrdma/svc_rdma_transport.c
+2 -1
View File
@@ -695,7 +695,8 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
return ERR_PTR(-ENOMEM);
xprt = &cma_xprt->sc_xprt;
listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP);
listen_id = rdma_create_id(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);
net/sunrpc/xprtrdma/verbs.c
+1 -1
View File
@@ -387,7 +387,7 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt,
init_completion(&ia->ri_done);
id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP);
id = rdma_create_id(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",