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authorThomas Huth <thuth@redhat.com>2023-09-27 15:30:19 +0200
committerThomas Huth <thuth@redhat.com>2023-10-12 14:11:44 +0200
commite9a54265f533f4df957ee9ced3304df8c3ef2bea (patch)
tree650ddd025b3a28b95762bd6829a3f047753d478d
parent85fc35afa93c7320d1641d344d0c5dfbe341d087 (diff)
hw/rdma: Deprecate the pvrdma device and the rdma subsystem
This subsystem is said to be in a bad shape (see e.g. [1], [2] and [3]), and nobody seems to feel responsible to pick up patches for this and send them via a pull request. For example there is a patch for a CVE-worthy bug posted more than half a year ago [4] which has never been merged. Thus let's mark it as deprecated and finally remove it unless somebody steps up and improves the code quality and adds proper regression tests. [1] https://lore.kernel.org/qemu-devel/20230918144206.560120-1-armbru@redhat.com/ [2] https://lore.kernel.org/qemu-devel/ZQnojJOqoFu73995@redhat.com/ [3] https://lore.kernel.org/qemu-devel/1054981c-e8ae-c676-3b04-eeb030e11f65@tls.msk.ru/ [4] https://lore.kernel.org/qemu-devel/20230301142926.18686-1-yuval.shaia.ml@gmail.com/ Message-ID: <20230927133019.228495-1-thuth@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
-rw-r--r--MAINTAINERS2
-rw-r--r--docs/about/deprecated.rst8
-rw-r--r--hw/rdma/vmw/pvrdma_main.c2
3 files changed, 11 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index c3cc12dc29..1c9b49c00f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3843,7 +3843,7 @@ F: docs/block-replication.txt
PVRDMA
M: Yuval Shaia <yuval.shaia.ml@gmail.com>
M: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
-S: Maintained
+S: Odd Fixes
F: hw/rdma/*
F: hw/rdma/vmw/*
F: docs/pvrdma.txt
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 8b136320e2..ffd0a8c896 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -327,6 +327,14 @@ QEMU's ``vhost`` feature, which would eliminate the high latency costs under
which the 9p ``proxy`` backend currently suffers. However as of to date nobody
has indicated plans for such kind of reimplementation unfortunately.
+``-device pvrdma`` and the rdma subsystem (since 8.2)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The pvrdma device and the whole rdma subsystem are in a bad shape and
+without active maintenance. The QEMU project intends to remove this
+device and subsystem from the code base in a future release without
+replacement unless somebody steps up and improves the situation.
+
Block device options
''''''''''''''''''''
diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c
index 55b338046e..e735ff97eb 100644
--- a/hw/rdma/vmw/pvrdma_main.c
+++ b/hw/rdma/vmw/pvrdma_main.c
@@ -615,6 +615,8 @@ static void pvrdma_realize(PCIDevice *pdev, Error **errp)
bool ram_shared = false;
PCIDevice *func0;
+ warn_report_once("pvrdma is deprecated and will be removed in a future release");
+
rdma_info_report("Initializing device %s %x.%x", pdev->name,
PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));