sd: sdhci: Implement basic vendor specific register support

[qemu.git] / blockdev-nbd.c

diff --git a/blockdev-nbd.c b/blockdev-nbd.c
index 7a71da447fd04b60ffe3d863ca50119842317437..1a95d89f0096a848eab3d2a1d13daade6b0d2227 100644 (file)
--- a/blockdev-nbd.c
+++ b/blockdev-nbd.c
@@ -101,7 +101,7 @@ void nbd_server_start(SocketAddress *addr, const char *tls_creds,
     qio_net_listener_set_name(nbd_server->listener,
                               "nbd-listener");
 
-    if (qio_net_listener_open_sync(nbd_server->listener, addr, errp) < 0) {
+    if (qio_net_listener_open_sync(nbd_server->listener, addr, 1, errp) < 0) {
         goto error;
     }
 
@@ -132,6 +132,11 @@ void nbd_server_start(SocketAddress *addr, const char *tls_creds,
     nbd_server = NULL;
 }
 
+void nbd_server_start_options(NbdServerOptions *arg, Error **errp)
+{
+    nbd_server_start(arg->addr, arg->tls_creds, arg->tls_authz, errp);
+}
+
 void qmp_nbd_server_start(SocketAddressLegacy *addr,
                           bool has_tls_creds, const char *tls_creds,
                           bool has_tls_authz, const char *tls_authz,
@@ -143,61 +148,75 @@ void qmp_nbd_server_start(SocketAddressLegacy *addr,
     qapi_free_SocketAddress(addr_flat);
 }
 
-void qmp_nbd_server_add(const char *device, bool has_name, const char *name,
-                        bool has_writable, bool writable,
-                        bool has_bitmap, const char *bitmap, Error **errp)
+void qmp_nbd_server_add(BlockExportNbd *arg, Error **errp)
 {
     BlockDriverState *bs = NULL;
     BlockBackend *on_eject_blk;
     NBDExport *exp;
     int64_t len;
+    AioContext *aio_context;
 
     if (!nbd_server) {
         error_setg(errp, "NBD server not running");
         return;
     }
 
-    if (!has_name) {
-        name = device;
+    if (!arg->has_name) {
+        arg->name = arg->device;
+    }
+
+    if (strlen(arg->name) > NBD_MAX_STRING_SIZE) {
+        error_setg(errp, "export name '%s' too long", arg->name);
+        return;
+    }
+
+    if (arg->description && strlen(arg->description) > NBD_MAX_STRING_SIZE) {
+        error_setg(errp, "description '%s' too long", arg->description);
+        return;
     }
 
-    if (nbd_export_find(name)) {
-        error_setg(errp, "NBD server already has export named '%s'", name);
+    if (nbd_export_find(arg->name)) {
+        error_setg(errp, "NBD server already has export named '%s'", arg->name);
         return;
     }
 
-    on_eject_blk = blk_by_name(device);
+    on_eject_blk = blk_by_name(arg->device);
 
-    bs = bdrv_lookup_bs(device, device, errp);
+    bs = bdrv_lookup_bs(arg->device, arg->device, errp);
     if (!bs) {
         return;
     }
 
+    aio_context = bdrv_get_aio_context(bs);
+    aio_context_acquire(aio_context);
     len = bdrv_getlength(bs);
     if (len < 0) {
         error_setg_errno(errp, -len,
                          "Failed to determine the NBD export's length");
-        return;
+        goto out;
     }
 
-    if (!has_writable) {
-        writable = false;
+    if (!arg->has_writable) {
+        arg->writable = false;
     }
     if (bdrv_is_read_only(bs)) {
-        writable = false;
+        arg->writable = false;
     }
 
-    exp = nbd_export_new(bs, 0, len, name, NULL, bitmap,
-                         writable ? 0 : NBD_FLAG_READ_ONLY,
+    exp = nbd_export_new(bs, 0, len, arg->name, arg->description, arg->bitmap,
+                         !arg->writable, !arg->writable,
                          NULL, false, on_eject_blk, errp);
     if (!exp) {
-        return;
+        goto out;
     }
 
     /* The list of named exports has a strong reference to this export now and
      * our only way of accessing it is through nbd_export_find(), so we can drop
      * the strong reference that is @exp. */
     nbd_export_put(exp);
+
+ out:
+    aio_context_release(aio_context);
 }
 
 void qmp_nbd_server_remove(const char *name,
@@ -205,6 +224,7 @@ void qmp_nbd_server_remove(const char *name,
                            Error **errp)
 {
     NBDExport *exp;
+    AioContext *aio_context;
 
     if (!nbd_server) {
         error_setg(errp, "NBD server not running");
@@ -221,7 +241,10 @@ void qmp_nbd_server_remove(const char *name,
         mode = NBD_SERVER_REMOVE_MODE_SAFE;
     }
 
+    aio_context = nbd_export_aio_context(exp);
+    aio_context_acquire(aio_context);
     nbd_export_remove(exp, mode, errp);
+    aio_context_release(aio_context);
 }
 
 void qmp_nbd_server_stop(Error **errp)