search for: ktime_set

...10 +405,10 @@ again: virtio_debug(vdebug, "%s: before calling kick %d\n", __FUNCTION__, __LINE__); vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); } return 0; }

...10 +405,10 @@ again: virtio_debug(vdebug, "%s: before calling kick %d\n", __FUNCTION__, __LINE__); vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); } return 0; }

...vers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -392,10 +392,10 @@ again: vi->stats.sendq_kicks++; vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); }...

...vers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -392,10 +392,10 @@ again: vi->stats.sendq_kicks++; vi->svq->vq_ops->kick(vi->svq); vi->out_num = 0; - } else { - vi->stats.hrtimer_starts++; - hrtimer_start(&vi->tx_timer, ktime_set(0,500000), - HRTIMER_MODE_REL); + } else if (!hrtimer_is_queued(&vi->tx_timer)) { + vi->stats.hrtimer_starts++; + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); }...

...TX_BUSY; } - vi->svq->vq_ops->kick(vi->svq); + if (++vi->out_num == vi->out_max) { + hrtimer_cancel(&vi->tx_timer); + vi->svq->vq_ops->kick(vi->svq); + vi->out_num = 0; + } else + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); return 0; } @@ -363,6 +398,10 @@ static int virtnet_probe(struct virtio_device *vdev) netif_napi_add(dev, &vi->napi, virtnet_poll, 16); vi->dev = dev; vi->vdev = vdev; + hrtimer_init(&vi->tx_timer, CLOCK_...

...TX_BUSY; } - vi->svq->vq_ops->kick(vi->svq); + if (++vi->out_num == vi->out_max) { + hrtimer_cancel(&vi->tx_timer); + vi->svq->vq_ops->kick(vi->svq); + vi->out_num = 0; + } else + hrtimer_start(&vi->tx_timer, ktime_set(0,500000), + HRTIMER_MODE_REL); return 0; } @@ -363,6 +398,10 @@ static int virtnet_probe(struct virtio_device *vdev) netif_napi_add(dev, &vi->napi, virtnet_poll, 16); vi->dev = dev; vi->vdev = vdev; + hrtimer_init(&vi->tx_timer, CLOCK_...

...(jiffies, fence->timeout)) { - if (intr) { - ret = wait_event_interruptible_timeout( - priv->waiting, - nouveau_fence_done(fence), - timeout); - } else { - ret = wait_event_timeout(priv->waiting, - nouveau_fence_done(fence), - timeout); - } - } + kt = ktime_set(0, sleep_time); + schedule_hrtimeout(&kt, HRTIMER_MODE_REL); + sleep_time *= 2; + if (sleep_time > NSEC_PER_MSEC) + sleep_time = NSEC_PER_MSEC; - if (ret >= 0) { - fence->timeout = jiffies + ret; - if (time_after_eq(jiffies, fence->timeout)) - ret = -EBUSY; - } - } e...

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or packet

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or packet

This series depends on the previously posted reservation api patches. 2 of them are not yet in for-next-fences branch of git://git.linaro.org/people/sumit.semwal/linux-3.x.git The missing patches are still in my vmwgfx_wip branch at git://people.freedesktop.org/~mlankhorst/linux All ttm drivers are converted to the fence api, fence_lock is removed and rcu is used in its place. qxl is the first

fence_is_signaled callback should support being run in atomic context, but not in irq context. Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com> --- include/linux/fence.h | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/include/linux/fence.h b/include/linux/fence.h index d174585b874b..c1a4519ba2f5 100644 ---

This series applies on top of the driver-core-next branch of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git Before converting ttm to the new fence interface I had to fix some drivers to require a reservation before poking with fence_obj. After flipping the switch RCU becomes available instead, and the extra reservations can be dropped again. :-) I've done at least basic