From: leonidk <leonidk@ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86>
Date: Thu, 27 Nov 2008 13:38:02 +0000 (+0000)
Subject: [MTHCA] bugfix in CMD interface: wait for GO bit before issuing command in polling... 
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=a219eae98057122f064dae16eaaf57d358e21fc2;p=~shefty%2Frdma-win.git

[MTHCA] bugfix in CMD interface: wait for GO bit before issuing command in polling mode. [mlnx: 3313]

git-svn-id: svn://openib.tc.cornell.edu/gen1@1775 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86
---

diff --git a/trunk/hw/mthca/kernel/mthca_cmd.c b/trunk/hw/mthca/kernel/mthca_cmd.c
index 0c2ba3c1..e3483f7c 100644
--- a/trunk/hw/mthca/kernel/mthca_cmd.c
+++ b/trunk/hw/mthca/kernel/mthca_cmd.c
@@ -259,10 +259,16 @@ static int mthca_cmd_post(struct mthca_dev *dev,
 
 	down(&dev->cmd.hcr_mutex);
 
-	if (event && wait_go_bit(dev,GO_BIT_TIMEOUT)) {
-		err = -EAGAIN;
-		goto out;
-	}
+	if (event)
+		if (wait_go_bit(dev,GO_BIT_TIMEOUT)) {
+			err = -EAGAIN;
+			goto out;
+		}
+	else
+		if (go_bit(dev)) {
+			err = -EAGAIN;
+			goto out;
+		}
 
 	/*
 	 * We use writel (instead of something like memcpy_toio)