From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43278) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bm1qu-0001FY-9u for qemu-devel@nongnu.org; Mon, 19 Sep 2016 12:55:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bm1qs-0004cq-8a for qemu-devel@nongnu.org; Mon, 19 Sep 2016 12:55:31 -0400 From: Kevin Wolf Date: Mon, 19 Sep 2016 18:54:56 +0200 Message-Id: <1474304097-5790-10-git-send-email-kwolf@redhat.com> In-Reply-To: <1474304097-5790-1-git-send-email-kwolf@redhat.com> References: <1474304097-5790-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PATCH v2 09/10] block: Accept device model name for block_set_io_throttle List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, eblake@redhat.com, mreitz@redhat.com, jsnow@redhat.com, qemu-devel@nongnu.org In order to remove the necessity to use BlockBackend names in the external API, we want to allow qdev device names in all device related commands. This converts block_set_io_throttle to accept a qdev device name. Signed-off-by: Kevin Wolf --- blockdev.c | 12 +++++++----- qapi/block-core.json | 8 +++++--- qmp-commands.hx | 8 +++++--- 3 files changed, 17 insertions(+), 11 deletions(-) diff --git a/blockdev.c b/blockdev.c index 8c8fcd6..405145a 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2647,10 +2647,10 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp) BlockBackend *blk; AioContext *aio_context; - blk = blk_by_name(arg->device); + blk = qmp_get_blk(arg->has_device ? arg->device : NULL, + arg->has_id ? arg->id : NULL, + errp); if (!blk) { - error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, - "Device '%s' not found", arg->device); return; } @@ -2659,7 +2659,7 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp) bs = blk_bs(blk); if (!bs) { - error_setg(errp, "Device '%s' has no medium", arg->device); + error_setg(errp, "Device has no medium"); goto out; } @@ -2723,7 +2723,9 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp) * just update the throttling group. */ if (!blk_get_public(blk)->throttle_state) { blk_io_limits_enable(blk, - arg->has_group ? arg->group : arg->device); + arg->has_group ? arg->group : + arg->has_device ? arg->device : + arg->id); } else if (arg->has_group) { blk_io_limits_update_group(blk, arg->group); } diff --git a/qapi/block-core.json b/qapi/block-core.json index 1d7d4cc..5f04dab 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1377,7 +1377,9 @@ # # A set of parameters describing block throttling. # -# @device: The name of the device +# @device: #optional Block device name (deprecated, use @id instead) +# +# @id: #optional The name or QOM path of the guest device (since: 2.8) # # @bps: total throughput limit in bytes per second # @@ -1446,8 +1448,8 @@ # Since: 1.1 ## { 'struct': 'BlockIOThrottle', - 'data': { 'device': 'str', 'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int', - 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int', + 'data': { '*device': 'str', '*id': 'str', 'bps': 'int', 'bps_rd': 'int', + 'bps_wr': 'int', 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int', '*bps_max': 'int', '*bps_rd_max': 'int', '*bps_wr_max': 'int', '*iops_max': 'int', '*iops_rd_max': 'int', '*iops_wr_max': 'int', diff --git a/qmp-commands.hx b/qmp-commands.hx index cf1ffc5..9b8696c 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2084,7 +2084,7 @@ EQMP { .name = "block_set_io_throttle", - .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l,bps_max:l?,bps_rd_max:l?,bps_wr_max:l?,iops_max:l?,iops_rd_max:l?,iops_wr_max:l?,bps_max_length:l?,bps_rd_max_length:l?,bps_wr_max_length:l?,iops_max_length:l?,iops_rd_max_length:l?,iops_wr_max_length:l?,iops_size:l?,group:s?", + .args_type = "device:B?,id:s?,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l,bps_max:l?,bps_rd_max:l?,bps_wr_max:l?,iops_max:l?,iops_rd_max:l?,iops_wr_max:l?,bps_max_length:l?,bps_rd_max_length:l?,bps_wr_max_length:l?,iops_max_length:l?,iops_rd_max_length:l?,iops_wr_max_length:l?,iops_size:l?,group:s?", .mhandler.cmd_new = qmp_marshal_block_set_io_throttle, }, @@ -2096,7 +2096,9 @@ Change I/O throttle limits for a block drive. Arguments: -- "device": device name (json-string) +- "device": block device name (deprecated, use @id instead) + (json-string, optional) +- "id": the name or QOM path of the guest device (json-string, optional) - "bps": total throughput limit in bytes per second (json-int) - "bps_rd": read throughput limit in bytes per second (json-int) - "bps_wr": write throughput limit in bytes per second (json-int) @@ -2120,7 +2122,7 @@ Arguments: Example: --> { "execute": "block_set_io_throttle", "arguments": { "device": "virtio0", +-> { "execute": "block_set_io_throttle", "arguments": { "id": "ide0-1-0", "bps": 1000000, "bps_rd": 0, "bps_wr": 0, -- 1.8.3.1