[dpdk-dev] [PATCH] vfio: document multiprocess limitation for container API
Anatoly Burakov
anatoly.burakov at intel.com
Wed Feb 27 16:41:24 CET 2019
Currently, there is no support for sharing custom VFIO containers
between multiple processes, but it is not documented.
Document this limitation.
Cc: stable at dpdk.org
Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
lib/librte_eal/common/include/rte_vfio.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/librte_eal/common/include/rte_vfio.h b/lib/librte_eal/common/include/rte_vfio.h
index cae96fab9..4b3a91e91 100644
--- a/lib/librte_eal/common/include/rte_vfio.h
+++ b/lib/librte_eal/common/include/rte_vfio.h
@@ -291,6 +291,10 @@ rte_vfio_get_group_fd(int iommu_group_num);
* containers by default, user needs to manage DMA mappings for
* any container created by this API.
*
+ * @note When creating containers using this API, the container will only be
+ * available in the process that has created it. Sharing containers and
+ * devices between multiple processes is not supported.
+ *
* @return
* the container fd if successful
* <0 if failed
--
2.17.1
More information about the dev
mailing list