[dpdk-dev] [PATCH] ethdev: increase length device internal name

[Stephen Hemminger <stephen@networkplumber.org>]

Allow sufficicent space for UUID in string form (36+1).
Needed to use UUID with Hyper-V. This was in deprecation notice
for previous release and make it so in 17.11.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
---
 doc/guides/rel_notes/deprecation.rst    | 3 +++
 lib/librte_eal/common/include/rte_dev.h | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 3362f33501dd..ba5b68e70098 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -120,3 +120,6 @@ Deprecation Notices
   The non-"do-sig" versions of the hash tables will be removed
   (including the ``signature_offset`` parameter)
   and the "do-sig" versions renamed accordingly.
+
+* ethdev: in 17.11 the size of internal device name is increased
+  to 64 characters to allow for storing longer bus specific name.
diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h
index 5386d3a28be5..4c4ac7e5d375 100644
--- a/lib/librte_eal/common/include/rte_dev.h
+++ b/lib/librte_eal/common/include/rte_dev.h
@@ -152,7 +152,11 @@ struct rte_driver {
 	const char *alias;              /**< Driver alias. */
 };
 
-#define RTE_DEV_NAME_MAX_LEN (32)
+/*
+ * Internal identifier length
+ * Sufficiently large to allow for UUID or PCI address
+ */
+#define RTE_DEV_NAME_MAX_LEN 64
 
 /**
  * A structure describing a generic device.
-- 
2.11.0