[PATCH v2] PCI: ABI change request for adding new field in rte_pci_id structure

[Ziye Yang <ziye.yang@intel.com>]

From: Ziye <ziye.yang@intel.com>

The purpose of this patch is used to add a new field
"class" in rte_pci_id structure. The new class field includes
class_id, subcalss_id, programming interface of a pci device.
With this field, we can identify pci device by its class info,
which can be more flexible instead of probing the device by
vendor_id OR device_id OR subvendor_id OR subdevice_id.
For example, we can probe all nvme devices by class field, which
can be quite convenient.

As release_2_3.rst is replaced with release_16_04.rst

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
---
 doc/guides/rel_notes/release_16_04.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index 27fc624..fe843a5 100644
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -95,9 +95,10 @@ This section should contain API changes. Sample format:
 ABI Changes
 -----------
 
-* Add a short 1-2 sentence description of the ABI change that was announced in
-  the previous releases and made in this release. Use fixed width quotes for
-  ``rte_function_names`` or ``rte_struct_names``. Use the past tense.
+* New field ``class`` is added into ``rte_pci_id`` structure. This new
+  added ``class`` field can be used to probe pci devices by class related
+  info. With this new field, the size of structure ``rte_pci_device`` will
+  be increased.
 
 
 Shared Library Versions
-- 
1.9.3