docs: generate qemu-storage-daemon-qmp-ref(7) man page

Although individual qemu-storage-daemon QMP commands are identical to
QEMU QMP commands, qemu-storage-daemon only supports a subset of QEMU's
QMP commands. Generate a manual page of just the commands supported by
qemu-storage-daemon so that users know exactly what is available in
qemu-storage-daemon.

Add an h1 heading in storage-daemon/qapi/qapi-schema.json so that
block-core.json is at the h2 heading level.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201209103802.350848-2-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

docs/interop/conf.py

@@ -23,4 +23,6 @@
      [], 7),
     ('qemu-qmp-ref', 'qemu-qmp-ref', 'QEMU QMP Reference Manual',
      [], 7),
+    ('qemu-storage-daemon-qmp-ref', 'qemu-storage-daemon-qmp-ref',
+     'QEMU Storage Daemon QMP Reference Manual', [], 7),
 ]

docs/interop/index.rst

@@ -20,6 +20,7 @@ Contents:
    qemu-ga
    qemu-ga-ref
    qemu-qmp-ref
+   qemu-storage-daemon-qmp-ref
    vhost-user
    vhost-user-gpu
    vhost-vdpa

docs/interop/qemu-storage-daemon-qmp-ref.rst

+QEMU Storage Daemon QMP Reference Manual
+========================================
+
+..
+   TODO: the old Texinfo manual used to note that this manual
+   is GPL-v2-or-later. We should make that reader-visible
+   both here and in our Sphinx manuals more generally.
+
+..
+   TODO: display the QEMU version, both here and in our Sphinx manuals
+   more generally.
+
+.. qapi-doc:: storage-daemon/qapi/qapi-schema.json

docs/meson.build

@@ -56,6 +56,7 @@ if build_docs
         'qemu-ga.8': (have_tools ? 'man8' : ''),
         'qemu-ga-ref.7': 'man7',
         'qemu-qmp-ref.7': 'man7',
+        'qemu-storage-daemon-qmp-ref.7': (have_tools ? 'man7' : ''),
     },
     'tools': {
         'qemu-img.1': (have_tools ? 'man1' : ''),

storage-daemon/qapi/qapi-schema.json

@@ -15,6 +15,9 @@
 
 { 'include': '../../qapi/pragma.json' }
 
+##
+# = Block devices
+##
 { 'include': '../../qapi/block-core.json' }
 { 'include': '../../qapi/block-export.json' }
 { 'include': '../../qapi/char.json' }