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[dpdk-dev] PCI: ABI change request for adding new field in rte_pci_id structure

Message ID 1453689419-237252-1-git-send-email-ziye.yang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers

Commit Message

Ziye Yang Jan. 25, 2016, 2:36 a.m. UTC 
  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.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
---
 doc/guides/rel_notes/release_2_3.rst | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/doc/guides/rel_notes/release_2_3.rst b/doc/guides/rel_notes/release_2_3.rst
index 99de186..8fcb43f 100644
--- a/doc/guides/rel_notes/release_2_3.rst
+++ b/doc/guides/rel_notes/release_2_3.rst
@@ -39,6 +39,10 @@  API Changes
 ABI Changes
 -----------
 
+* 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
 -----------------------