From ef81e89bc7c690f3fc36cb772f1b579b920f49dc Mon Sep 17 00:00:00 2001
From: Ira Weiny <weiny2@llnl.gov>
Date: Thu, 19 May 2011 18:19:28 -0700
Subject: [PATCH] --- yaml --- r: 251887 b: refs/heads/master c:
 c8367c4cd9de512d296fc557f121be62a43987f3 h: refs/heads/master i:   251885:
 8b654349615b0374dd1caf5016f65d40ef5af5c2   251883:
 f9290d54066151c33ea0df4738224a48e889e969   251879:
 245225e498132c52047ad032ca987b65c2c3f8d1   251871:
 d85578facedf4dde877bb6149b99eb5b50d3a1e2 v: v3

---
 [refs]                                       |  2 +-
 trunk/drivers/infiniband/core/mad.c          |  7 +++++++
 trunk/drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 18 +++++++++++++-----
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/[refs] b/[refs]
index 0cc4c3476331..76bf002c0498 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c337374bf23b88620bcc66a7a09f141cc640f548
+refs/heads/master: c8367c4cd9de512d296fc557f121be62a43987f3
diff --git a/trunk/drivers/infiniband/core/mad.c b/trunk/drivers/infiniband/core/mad.c
index 822cfdcd9f78..b4d8672a3e4e 100644
--- a/trunk/drivers/infiniband/core/mad.c
+++ b/trunk/drivers/infiniband/core/mad.c
@@ -276,6 +276,13 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
 		goto error1;
 	}
 
+	/* Verify the QP requested is supported.  For example, Ethernet devices
+	 * will not have QP0 */
+	if (!port_priv->qp_info[qpn].qp) {
+		ret = ERR_PTR(-EPROTONOSUPPORT);
+		goto error1;
+	}
+
 	/* Allocate structures */
 	mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
 	if (!mad_agent_priv) {
diff --git a/trunk/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/trunk/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index 4f045375c8e2..35d2a5dd9bb4 100644
--- a/trunk/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/trunk/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -35,7 +35,7 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/idr.h>
-#include <linux/completion.h>
+#include <linux/workqueue.h>
 #include <linux/netdevice.h>
 #include <linux/sched.h>
 #include <linux/pci.h>
@@ -131,21 +131,28 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
 
 #define C4IW_WR_TO (10*HZ)
 
+enum {
+	REPLY_READY = 0,
+};
+
 struct c4iw_wr_wait {
-	struct completion completion;
+	wait_queue_head_t wait;
+	unsigned long status;
 	int ret;
 };
 
 static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
 {
 	wr_waitp->ret = 0;
-	init_completion(&wr_waitp->completion);
+	wr_waitp->status = 0;
+	init_waitqueue_head(&wr_waitp->wait);
 }
 
 static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
 {
 	wr_waitp->ret = ret;
-	complete(&wr_waitp->completion);
+	set_bit(REPLY_READY, &wr_waitp->status);
+	wake_up(&wr_waitp->wait);
 }
 
 static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
@@ -157,7 +164,8 @@ static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
 	int ret;
 
 	do {
-		ret = wait_for_completion_timeout(&wr_waitp->completion, to);
+		ret = wait_event_timeout(wr_waitp->wait,
+			test_and_clear_bit(REPLY_READY, &wr_waitp->status), to);
 		if (!ret) {
 			printk(KERN_ERR MOD "%s - Device %s not responding - "
 			       "tid %u qpid %u\n", func,