From: Jens Freimann <jfreimann@redhat.com>
To: dev@dpdk.org
Cc: tiwei.bie@intel.com, maxime.coquelin@redhat.com, Gavin.Hu@arm.com
Subject: [PATCH v6 02/11] net/virtio: add packed virtqueue defines
Date: Fri, 21 Sep 2018 12:32:59 +0200 [thread overview]
Message-ID: <20180921103308.16357-3-jfreimann@redhat.com> (raw)
In-Reply-To: <20180921103308.16357-1-jfreimann@redhat.com>
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
---
drivers/net/virtio/virtio_ring.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/virtio/virtio_ring.h b/drivers/net/virtio/virtio_ring.h
index 309069fdb..36a65f9b3 100644
--- a/drivers/net/virtio/virtio_ring.h
+++ b/drivers/net/virtio/virtio_ring.h
@@ -15,7 +15,11 @@
#define VRING_DESC_F_WRITE 2
/* This means the buffer contains a list of buffer descriptors. */
#define VRING_DESC_F_INDIRECT 4
+/* This flag means the descriptor was made available by the driver */
+#define VRING_DESC_F_AVAIL(b) ((uint16_t)(b) << 7)
+/* This flag means the descriptor was used by the device */
+#define VRING_DESC_F_USED(b) ((uint16_t)(b) << 15)
/* The Host uses this in used->flags to advise the Guest: don't kick me
* when you add a buffer. It's unreliable, so it's simply an
* optimization. Guest will still kick if it's out of buffers. */
--
2.17.1
next prev parent reply other threads:[~2018-09-21 10:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 10:32 [PATCH v6 00/11] implement packed virtqueues Jens Freimann
2018-09-21 10:32 ` [PATCH v6 01/11] net/virtio: vring init for packed queues Jens Freimann
2018-09-21 10:32 ` Jens Freimann [this message]
2018-09-21 10:33 ` [PATCH v6 03/11] net/virtio: add packed virtqueue helpers Jens Freimann
2018-09-21 10:33 ` [PATCH v6 04/11] net/virtio: flush packed receive virtqueues Jens Freimann
2018-09-21 10:33 ` [PATCH v6 05/11] net/virtio: dump packed virtqueue data Jens Freimann
2018-09-21 10:33 ` [PATCH v6 06/11] net/virtio: implement transmit path for packed queues Jens Freimann
2018-09-21 12:26 ` Tiwei Bie
2018-09-21 12:37 ` Jens Freimann
2018-09-21 12:49 ` Tiwei Bie
2018-09-21 10:33 ` [PATCH v6 07/11] net/virtio: implement receive " Jens Freimann
2018-09-21 10:33 ` [PATCH v6 08/11] net/virtio: add support for mergeable buffers with packed virtqueues Jens Freimann
2018-09-21 10:33 ` [PATCH v6 09/11] net/virtio: add virtio send command packed queue support Jens Freimann
2018-09-21 12:37 ` Tiwei Bie
2018-09-21 10:33 ` [PATCH v6 10/11] net/virtio-user: add option to use packed queues Jens Freimann
2018-09-21 10:33 ` [PATCH v6 11/11] net/virtio: enable packed virtqueues by default Jens Freimann
2018-09-21 12:32 ` [PATCH v6 00/11] implement packed virtqueues Tiwei Bie
2018-09-21 14:06 ` Jens Freimann
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