[v8,19/19] doc: update release notes for multi process hotplug
diff mbox series

Message ID 20180702054450.29269-20-qi.z.zhang@intel.com
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series
  • enable hotplug on multi-process
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Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Zhang, Qi Z July 2, 2018, 5:44 a.m. UTC
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(+)

Patch
diff mbox series

diff --git a/doc/guides/rel_notes/release_18_08.rst b/doc/guides/rel_notes/release_18_08.rst
index bc0124295..93a813340 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 etherdev multi-process hotplug.**
+
+  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 etherdev locking.**
+
+  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
 -----------