[PATCH] IB: Update MAD client API

Automatically allocate a MR when registering a MAD agent.
MAD clients are modified to use this updated API.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Hal Rosenstock <halr@voltaire.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 13 deletions

diff --git a/drivers/infiniband/core/agent.c b/drivers/infiniband/core/agent.c
index 23d1957c4b29..dde25ee81b65 100644
--- a/drivers/infiniband/core/agent.c
+++ b/drivers/infiniband/core/agent.c
@@ -134,7 +134,7 @@ static int agent_mad_send(struct ib_mad_agent *mad_agent,
                                           sizeof(mad_priv->mad),
                                           DMA_TO_DEVICE);
         gather_list.length = sizeof(mad_priv->mad);
-        gather_list.lkey = (*port_priv->mr).lkey;
+        gather_list.lkey = mad_agent->mr->lkey;
 
         send_wr.next = NULL;
         send_wr.opcode = IB_WR_SEND;
@@ -322,22 +322,12 @@ int ib_agent_port_open(struct ib_device *device, int port_num)
                 goto error3;
         }
 
-        port_priv->mr = ib_get_dma_mr(port_priv->smp_agent->qp->pd,
-                                      IB_ACCESS_LOCAL_WRITE);
-        if (IS_ERR(port_priv->mr)) {
-                printk(KERN_ERR SPFX "Couldn't get DMA MR\n");
-                ret = PTR_ERR(port_priv->mr);
-                goto error4;
-        }
-
         spin_lock_irqsave(&ib_agent_port_list_lock, flags);
         list_add_tail(&port_priv->port_list, &ib_agent_port_list);
         spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);
 
         return 0;
 
-error4:
-        ib_unregister_mad_agent(port_priv->perf_mgmt_agent);
 error3:
         ib_unregister_mad_agent(port_priv->smp_agent);
 error2:
@@ -361,8 +351,6 @@ int ib_agent_port_close(struct ib_device *device, int port_num)
         list_del(&port_priv->port_list);
         spin_unlock_irqrestore(&ib_agent_port_list_lock, flags);
 
-        ib_dereg_mr(port_priv->mr);
-
         ib_unregister_mad_agent(port_priv->perf_mgmt_agent);
         ib_unregister_mad_agent(port_priv->smp_agent);
         kfree(port_priv);