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>

diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index df5bd3d..6d61a16 100644 (file)
--- 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;
        }