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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 <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Sean Hefty 2010-04-01 17:08:41 +00:00 • committed by Roland Dreier
commit b26f9b9949
12 changed files with 55 additions and 33 deletions
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2
net/rds/ib.c
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);

2
net/rds/ib_cm.c
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;

2
net/rds/iw.c
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);

2
net/rds/iw_cm.c
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;

3
net/rds/rdma_transport.c
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, "