From: Mike Marciniszyn <mike.marciniszyn@intel.com>
Date: Tue, 12 Apr 2016 17:45:51 +0000 (-0700)
Subject: IB/rdmavt: Fix adaptive pio hang
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f39cc34df7ed919c5c7630a8a7a701939356c37c;p=linux-beck.git

IB/rdmavt: Fix adaptive pio hang

The RVT_S_WAIT_PIO_DRAIN flag was missing from
the set of flags indicating a qp is waiting
on a resource.

This caused the sleep/wakeup for adaptive pio
drain to lose a wakeup "hanging" a QP.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 497e59065c2c..0e1ff2abfe92 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -117,8 +117,9 @@
 /*
  * Wait flags that would prevent any packet type from being sent.
  */
-#define RVT_S_ANY_WAIT_IO (RVT_S_WAIT_PIO | RVT_S_WAIT_TX | \
-	RVT_S_WAIT_DMA_DESC | RVT_S_WAIT_KMEM)
+#define RVT_S_ANY_WAIT_IO \
+	(RVT_S_WAIT_PIO | RVT_S_WAIT_PIO_DRAIN | RVT_S_WAIT_TX | \
+	 RVT_S_WAIT_DMA_DESC | RVT_S_WAIT_KMEM)
 
 /*
  * Wait flags that would prevent send work requests from making progress.