[v7,19/19] doc: update release notes for multi process hotplug
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Commit Message
Update release notes for the new multi process hotplug feature.
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
doc/guides/rel_notes/release_18_08.rst | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
@@ -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
-----------