From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:51013) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sn5ue-0003He-Vh for qemu-devel@nongnu.org; Fri, 06 Jul 2012 06:37:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sn5uY-00084n-SO for qemu-devel@nongnu.org; Fri, 06 Jul 2012 06:37:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:7367) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sn5uY-00084c-K4 for qemu-devel@nongnu.org; Fri, 06 Jul 2012 06:37:18 -0400 From: Amit Shah Date: Fri, 6 Jul 2012 16:07:06 +0530 Message-Id: Subject: [Qemu-devel] [PATCH 0/3] Introduce virtqueue_get_avail_bytes() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu list Cc: Amit Shah , Anthony Liguori The current virtqueue_avail_bytes() is a weird API: it's oddly-named: doesn't tell us what the API is going to do, and also suits just one use-case (that in virtio-net.c). Introduce virtqueue_get_avail_bytes(), which returns the number of bytes in the vq available for input as well as output. virtqueue_avail_bytes() is made a wrapper around this new function for now. It should be deprecated soon, though. Doing this will also help with the virtio-rng patch where a VirtQueueElement is popped only to find out what its size is. With this series applied, the popping (and the subsequent save/load of state for migration) isn't necessary. The virtio-serial-bus code becomes better too, that's patch 3 here. Please apply, Amit Shah (3): virtio: use unsigned int for counting bytes in vq virtio: Introduce virtqueue_get_avail_bytes() virtio-serial-bus: let chardev know the exact number of bytes requested hw/virtio-serial-bus.c | 11 +++-------- hw/virtio.c | 30 ++++++++++++++++++++++-------- hw/virtio.h | 5 ++++- 3 files changed, 29 insertions(+), 17 deletions(-) -- 1.7.7.6