[dpdk-dev] [PATCH v7 19/19] doc: update release notes for multi process hotplug

Qi Zhang qi.z.zhang at intel.com
Thu Jun 28 14:57:08 CEST 2018


Update release notes for the new multi process hotplug feature.

Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 doc/guides/rel_notes/release_18_08.rst | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/doc/guides/rel_notes/release_18_08.rst b/doc/guides/rel_notes/release_18_08.rst
index bc0124295..650f7aadb 100644
--- a/doc/guides/rel_notes/release_18_08.rst
+++ b/doc/guides/rel_notes/release_18_08.rst
@@ -46,6 +46,21 @@ New Features
   Flow API support has been added to CXGBE Poll Mode Driver to offload
   flows to Chelsio T5/T6 NICs.
 
+* **Support ethernet device hotplug for primary-secondary model.**
+
+  Hotplug and hot-unplug for ethdev devices will now be supported in
+  multiprocessing scenario. Any ethdev devices created in the primary
+  process will be regarded as shared and will be available for all DPDK
+  processes, while secondary processes will have a choice between adding
+  a private (non-shared) or a shared device. Synchronization between
+  processes will be done using DPDK IPC.
+
+* **Support ethernet device lock.**
+
+  Application can now lock an ethernet device to prevent unexpected device
+  removal. Devices can either be locked unconditionally, or an application
+  can register for a callback before unplug for the purposes of performing
+  cleanup before releasing the device (or have a chance to deny unplug)
 
 API Changes
 -----------
@@ -60,6 +75,11 @@ API Changes
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* ethdev: scope of rte_eth_dev_attach and rte_eth_dev_detach is extended.
+
+  In primary-secondary process model, ``rte_eth_dev_attach`` will guarantee
+  that device be attached on all processes, while ``rte_eth_dev_detach``
+  will guarantee device be detached on all processes.
 
 ABI Changes
 -----------
-- 
2.13.6



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