X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flibrte_pmd_mlx4%2Fmlx4.c;h=3a45746418db471e041463ea02102df02ca99790;hb=66e1591687ac;hp=492cbbf8e6cdf2a24eb3e2ffb4f2053a2a9e0780;hpb=00c685634b8a43e4594e26949a6c4f1cf5b67047;p=dpdk.git

diff --git a/lib/librte_pmd_mlx4/mlx4.c b/lib/librte_pmd_mlx4/mlx4.c
index 492cbbf8e6..3a45746418 100644
--- a/lib/librte_pmd_mlx4/mlx4.c
+++ b/lib/librte_pmd_mlx4/mlx4.c
@@ -60,6 +60,16 @@
 #include <linux/ethtool.h>
 #include <linux/sockios.h>
 
+/* Verbs header. */
+/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
+#ifdef PEDANTIC
+#pragma GCC diagnostic ignored "-pedantic"
+#endif
+#include <infiniband/verbs.h>
+#ifdef PEDANTIC
+#pragma GCC diagnostic error "-pedantic"
+#endif
+
 /* DPDK headers don't like -pedantic. */
 #ifdef PEDANTIC
 #pragma GCC diagnostic ignored "-pedantic"
@@ -81,18 +91,6 @@
 #pragma GCC diagnostic error "-pedantic"
 #endif
 
-/* Verbs header. */
-/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
-#ifdef PEDANTIC
-#pragma GCC diagnostic ignored "-pedantic"
-#endif
-
-#include <infiniband/verbs.h>
-
-#ifdef PEDANTIC
-#pragma GCC diagnostic error "-pedantic"
-#endif
-
 /* Generated configuration header. */
 #include "mlx4_autoconf.h"
 
@@ -4425,6 +4423,10 @@ mlx4_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 	list = ibv_get_device_list(&i);
 	if (list == NULL) {
 		assert(errno);
+		if (errno == ENOSYS) {
+			WARN("cannot list devices, is ib_uverbs loaded?");
+			return 0;
+		}
 		return -errno;
 	}
 	assert(i >= 0);
@@ -4453,9 +4455,15 @@ mlx4_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 		break;
 	}
 	if (attr_ctx == NULL) {
-		if (err == 0)
-			err = ENODEV;
 		ibv_free_device_list(list);
+		switch (err) {
+		case 0:
+			WARN("cannot access device, is mlx4_ib loaded?");
+			return 0;
+		case EINVAL:
+			WARN("cannot use device, are drivers up to date?");
+			return 0;
+		}
 		assert(err > 0);
 		return -err;
 	}