From: Tiwei Bie <tiwei.bie@intel.com>
To: mst@redhat.com, jasowang@redhat.com,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
virtio-dev@lists.oasis-open.org
Cc: wexu@redhat.com, jfreimann@redhat.com, tiwei.bie@intel.com
Subject: [PATCH net-next v2 0/5] virtio: support packed ring
Date: Wed, 11 Jul 2018 10:27:06 +0800 [thread overview]
Message-ID: <20180711022711.7090-1-tiwei.bie@intel.com> (raw)
Hello everyone,
This patch set implements packed ring support in virtio driver.
Some functional tests have been done with Jason's
packed ring implementation in vhost:
https://lkml.org/lkml/2018/7/3/33
Both of ping and netperf worked as expected.
v1 -> v2:
- Use READ_ONCE() to read event off_wrap and flags together (Jason);
- Add comments related to ccw (Jason);
RFC (v6) -> v1:
- Avoid extra virtio_wmb() in virtqueue_enable_cb_delayed_packed()
when event idx is off (Jason);
- Fix bufs calculation in virtqueue_enable_cb_delayed_packed() (Jason);
- Test the state of the desc at used_idx instead of last_used_idx
in virtqueue_enable_cb_delayed_packed() (Jason);
- Save wrap counter (as part of queue state) in the return value
of virtqueue_enable_cb_prepare_packed();
- Refine the packed ring definitions in uapi;
- Rebase on the net-next tree;
RFC v5 -> RFC v6:
- Avoid tracking addr/len/flags when DMA API isn't used (MST/Jason);
- Define wrap counter as bool (Jason);
- Use ALIGN() in vring_init_packed() (Jason);
- Avoid using pointer to track `next` in detach_buf_packed() (Jason);
- Add comments for barriers (Jason);
- Don't enable RING_PACKED on ccw for now (noticed by Jason);
- Refine the memory barrier in virtqueue_poll();
- Add a missing memory barrier in virtqueue_enable_cb_delayed_packed();
- Remove the hacks in virtqueue_enable_cb_prepare_packed();
RFC v4 -> RFC v5:
- Save DMA addr, etc in desc state (Jason);
- Track used wrap counter;
RFC v3 -> RFC v4:
- Make ID allocation support out-of-order (Jason);
- Various fixes for EVENT_IDX support;
RFC v2 -> RFC v3:
- Split into small patches (Jason);
- Add helper virtqueue_use_indirect() (Jason);
- Just set id for the last descriptor of a list (Jason);
- Calculate the prev in virtqueue_add_packed() (Jason);
- Fix/improve desc suppression code (Jason/MST);
- Refine the code layout for XXX_split/packed and wrappers (MST);
- Fix the comments and API in uapi (MST);
- Remove the BUG_ON() for indirect (Jason);
- Some other refinements and bug fixes;
RFC v1 -> RFC v2:
- Add indirect descriptor support - compile test only;
- Add event suppression supprt - compile test only;
- Move vring_packed_init() out of uapi (Jason, MST);
- Merge two loops into one in virtqueue_add_packed() (Jason);
- Split vring_unmap_one() for packed ring and split ring (Jason);
- Avoid using '%' operator (Jason);
- Rename free_head -> next_avail_idx (Jason);
- Add comments for virtio_wmb() in virtqueue_add_packed() (Jason);
- Some other refinements and bug fixes;
Thanks!
Tiwei Bie (5):
virtio: add packed ring definitions
virtio_ring: support creating packed ring
virtio_ring: add packed ring support
virtio_ring: add event idx support in packed ring
virtio_ring: enable packed ring
drivers/s390/virtio/virtio_ccw.c | 14 +
drivers/virtio/virtio_ring.c | 1365 ++++++++++++++++++++++------
include/linux/virtio_ring.h | 8 +-
include/uapi/linux/virtio_config.h | 3 +
include/uapi/linux/virtio_ring.h | 43 +
5 files changed, 1157 insertions(+), 276 deletions(-)
--
2.18.0
next reply other threads:[~2018-07-11 2:27 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-11 2:27 Tiwei Bie [this message]
2018-07-11 2:27 ` [PATCH net-next v2 1/5] virtio: add packed ring definitions Tiwei Bie
2018-09-07 13:51 ` Michael S. Tsirkin
2018-09-10 2:13 ` Tiwei Bie
2018-09-12 12:53 ` Michael S. Tsirkin
2018-07-11 2:27 ` [PATCH net-next v2 2/5] virtio_ring: support creating packed ring Tiwei Bie
2018-09-07 14:03 ` Michael S. Tsirkin
2018-09-10 2:28 ` Tiwei Bie
2018-09-12 7:51 ` Tiwei Bie
2018-09-12 16:12 ` Michael S. Tsirkin
2018-09-12 12:45 ` Michael S. Tsirkin
2018-07-11 2:27 ` [PATCH net-next v2 3/5] virtio_ring: add packed ring support Tiwei Bie
2018-09-07 13:49 ` Michael S. Tsirkin
2018-09-10 2:03 ` Tiwei Bie
2018-09-12 16:22 ` Michael S. Tsirkin
2018-11-07 17:48 ` Michael S. Tsirkin
2018-11-08 1:38 ` Tiwei Bie
2018-11-08 8:18 ` Jason Wang
2018-11-08 11:51 ` Tiwei Bie
2018-11-08 15:56 ` Michael S. Tsirkin
2018-11-09 1:50 ` Tiwei Bie
2018-11-09 2:30 ` Jason Wang
2018-11-09 4:00 ` Michael S. Tsirkin
2018-11-09 10:05 ` Jason Wang
2018-11-08 14:14 ` Michael S. Tsirkin
2018-11-09 2:25 ` Jason Wang
2018-11-09 3:58 ` Michael S. Tsirkin
2018-11-09 10:04 ` Jason Wang
2018-07-11 2:27 ` [PATCH net-next v2 4/5] virtio_ring: add event idx support in packed ring Tiwei Bie
2018-09-07 14:10 ` Michael S. Tsirkin
2018-09-10 2:35 ` [virtio-dev] " Tiwei Bie
2018-07-11 2:27 ` [PATCH net-next v2 5/5] virtio_ring: enable " Tiwei Bie
2018-07-11 2:52 ` [PATCH net-next v2 0/5] virtio: support " Jason Wang
2018-07-12 21:44 ` David Miller
2018-07-13 0:52 ` Jason Wang
2018-07-13 3:26 ` Michael S. Tsirkin
2018-08-27 14:00 ` Michael S. Tsirkin
2018-08-28 5:51 ` [virtio-dev] " Jens Freimann
2018-09-07 1:22 ` Tiwei Bie
2018-09-07 13:00 ` Michael S. Tsirkin
2018-09-10 3:00 ` Tiwei Bie
2018-09-10 3:33 ` Jason Wang
2018-09-11 5:37 ` Tiwei Bie
2018-09-12 16:16 ` Michael S. Tsirkin
2018-09-13 8:59 ` Tiwei Bie
2018-09-13 9:47 ` Jason Wang
2018-10-10 14:36 ` Michael S. Tsirkin
2018-10-11 12:12 ` Tiwei Bie
2018-10-11 13:48 ` Michael S. Tsirkin
2018-10-11 14:13 ` Tiwei Bie
2018-10-11 14:17 ` Michael S. Tsirkin
2018-10-11 14:34 ` Tiwei Bie
2018-09-12 13:06 ` Michael S. Tsirkin
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