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Message-Id: <1351723614-4145-3-git-send-email-sjur@brendeland.net> Date: Wed, 31 Oct 2012 23:46:52 +0100 From: Sjur Brændeland <sjur@...ndeland.net> To: Rusty Russell <rusty@...tcorp.com.au> Cc: "Michael S. Tsirkin" <mst@...hat.com>, Linus Walleij <linus.walleij@...aro.org>, Ohad Ben-Cohen <ohad@...ery.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, virtualization@...ts.linux-foundation.org, sjur@...ndeland.net, dmitry.tarnyagin@...ricsson.com, Sjur Brændeland <sjur.brandeland@...ricsson.com> Subject: [RFC virtio-next 2/4] include/vring.h: Add support for reversed vritio rings. From: Sjur Brændeland <sjur.brandeland@...ricsson.com> Add last avilable index to the vring_virtqueue structure, this is done to prepare for implementation of the reversed vring. Signed-off-by: Sjur Brændeland <sjur.brandeland@...ricsson.com> --- drivers/virtio/vring.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/virtio/vring.h b/drivers/virtio/vring.h index b997fc3..3b53961 100644 --- a/drivers/virtio/vring.h +++ b/drivers/virtio/vring.h @@ -51,6 +51,9 @@ struct vring_virtqueue /* Last used index we've seen. */ u16 last_used_idx; + /* Last avail index seen. NOTE: Only used for reversed rings.*/ + u16 last_avail_idx; + /* How to notify other side. FIXME: commonalize hcalls! */ void (*notify)(struct virtqueue *vq); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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