1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 83a7751c38d6..bb1004114dec 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -35,6 +35,7 @@
 #include <net/icmp.h>
 #include <linux/icmpv6.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <linux/vmalloc.h>
 
 #include "ipoib.h"
@@ -708,6 +709,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
         struct ipoib_dev_priv *priv = netdev_priv(dev);
         struct ipoib_cm_tx_buf *tx_req;
         u64 addr;
+        int rc;
 
         if (unlikely(skb->len > tx->mtu)) {
                 ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n",
@@ -739,9 +741,10 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
 
         tx_req->mapping = addr;
 
-        if (unlikely(post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1),
-                               addr, skb->len))) {
-                ipoib_warn(priv, "post_send failed\n");
+        rc = post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1),
+                       addr, skb->len);
+        if (unlikely(rc)) {
+                ipoib_warn(priv, "post_send failed, error %d\n", rc);
                 ++dev->stats.tx_errors;
                 ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE);
                 dev_kfree_skb_any(skb);
@@ -752,6 +755,8 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
                 if (++priv->tx_outstanding == ipoib_sendq_size) {
                         ipoib_dbg(priv, "TX ring 0x%x full, stopping kernel net queue\n",
                                   tx->qp->qp_num);
+                        if (ib_req_notify_cq(priv->send_cq, IB_CQ_NEXT_COMP))
+                                ipoib_warn(priv, "request notify on send CQ failed\n");
                         netif_stop_queue(dev);
                 }
         }