xprtrdma: Display async errors

An async error upcall is a hard error, and should be reported in
the system log.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

1 files changed, 32 insertions, 4 deletions

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index e6ac9643fe56..5783c1a55b09 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -106,6 +106,32 @@ rpcrdma_run_tasklet(unsigned long data)
 
 static DECLARE_TASKLET(rpcrdma_tasklet_g, rpcrdma_run_tasklet, 0UL);
 
+static const char * const async_event[] = {
+        "CQ error",
+        "QP fatal error",
+        "QP request error",
+        "QP access error",
+        "communication established",
+        "send queue drained",
+        "path migration successful",
+        "path mig error",
+        "device fatal error",
+        "port active",
+        "port error",
+        "LID change",
+        "P_key change",
+        "SM change",
+        "SRQ error",
+        "SRQ limit reached",
+        "last WQE reached",
+        "client reregister",
+        "GID change",
+};
+
+#define ASYNC_MSG(status)                                       \
+        ((status) < ARRAY_SIZE(async_event) ?                   \
+                async_event[(status)] : "unknown async error")
+
 static void
 rpcrdma_schedule_tasklet(struct list_head *sched_list)
 {
@@ -122,8 +148,9 @@ rpcrdma_qp_async_error_upcall(struct ib_event *event, void *context)
 {
         struct rpcrdma_ep *ep = context;
 
-        dprintk("RPC:       %s: QP error %X on device %s ep %p\n",
-                __func__, event->event, event->device->name, context);
+        pr_err("RPC:       %s: %s on device %s ep %p\n",
+               __func__, ASYNC_MSG(event->event),
+                event->device->name, context);
         if (ep->rep_connected == 1) {
                 ep->rep_connected = -EIO;
                 ep->rep_func(ep);
@@ -136,8 +163,9 @@ rpcrdma_cq_async_error_upcall(struct ib_event *event, void *context)
 {
         struct rpcrdma_ep *ep = context;
 
-        dprintk("RPC:       %s: CQ error %X on device %s ep %p\n",
-                __func__, event->event, event->device->name, context);
+        pr_err("RPC:       %s: %s on device %s ep %p\n",
+               __func__, ASYNC_MSG(event->event),
+                event->device->name, context);
         if (ep->rep_connected == 1) {
                 ep->rep_connected = -EIO;
                 ep->rep_func(ep);