iw_cxgb4: log detailed warnings for negative advice

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 23 insertions, 6 deletions

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index df5bd3df08a2..6d61a16d1f5c 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1813,6 +1813,20 @@ static int is_neg_adv(unsigned int status)
                status == CPL_ERR_KEEPALV_NEG_ADVICE;
 }
 
+static char *neg_adv_str(unsigned int status)
+{
+        switch (status) {
+        case CPL_ERR_RTX_NEG_ADVICE:
+                return "Retransmit timeout";
+        case CPL_ERR_PERSIST_NEG_ADVICE:
+                return "Persist timeout";
+        case CPL_ERR_KEEPALV_NEG_ADVICE:
+                return "Keepalive timeout";
+        default:
+                return "Unknown";
+        }
+}
+
 static void set_tcp_window(struct c4iw_ep *ep, struct port_info *pi)
 {
         ep->snd_win = snd_win;
@@ -2011,8 +2025,9 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
              status, status2errno(status));
 
         if (is_neg_adv(status)) {
-                printk(KERN_WARNING MOD "Connection problems for atid %u\n",
-                        atid);
+                dev_warn(&dev->rdev.lldi.pdev->dev,
+                         "Connection problems for atid %u status %u (%s)\n",
+                         atid, status, neg_adv_str(status));
                 return 0;
         }
 
@@ -2488,8 +2503,9 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
 
         ep = lookup_tid(t, tid);
         if (is_neg_adv(req->status)) {
-                PDBG("%s neg_adv_abort ep %p tid %u\n", __func__, ep,
-                     ep->hwtid);
+                dev_warn(&dev->rdev.lldi.pdev->dev,
+                         "Negative advice on abort - tid %u status %d (%s)\n",
+                         ep->hwtid, req->status, neg_adv_str(req->status));
                 return 0;
         }
         PDBG("%s ep %p tid %u state %u\n", __func__, ep, ep->hwtid,
@@ -3894,8 +3910,9 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
                 return 0;
         }
         if (is_neg_adv(req->status)) {
-                PDBG("%s neg_adv_abort ep %p tid %u\n", __func__, ep,
-                     ep->hwtid);
+                dev_warn(&dev->rdev.lldi.pdev->dev,
+                         "Negative advice on abort - tid %u status %d (%s)\n",
+                         ep->hwtid, req->status, neg_adv_str(req->status));
                 kfree_skb(skb);
                 return 0;
         }