Messages in this thread | | | From | Jason Wang <> | Subject | [RFC PATCH 0/4] virtio-net: don't busy poll for cvq command | Date | Thu, 22 Dec 2022 14:04:23 +0800 |
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Hi all:
The code used to busy poll for cvq command which turns out to have several side effects:
1) infinite poll for buggy devices 2) bad interaction with scheduler
So this series tries to use sleep + timeout instead of busy polling.
Please review.
Thanks
Jason Wang (4): virtio-net: convert rx mode setting to use workqueue virtio_ring: switch to use BAD_RING() virtio_ring: introduce a per virtqueue waitqueue virtio-net: sleep instead of busy waiting for cvq command
drivers/net/virtio_net.c | 79 +++++++++++++++++++++++++++++++----- drivers/virtio/virtio_ring.c | 33 ++++++++++++++- include/linux/virtio.h | 4 ++ 3 files changed, 105 insertions(+), 11 deletions(-)
-- 2.25.1
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