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    "id": 42428,
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        "name": "DPDK",
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    "msgid": "<>",
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    "date": "2018-07-05T21:07:26",
    "name": "[v8,00/15] Vhost: add support to packed ring layout",
    "submitter": {
        "id": 512,
        "url": "",
        "name": "Maxime Coquelin",
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            "id": 443,
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            "date": "2018-07-05T21:07:26",
            "name": "Vhost: add support to packed ring layout",
            "version": 8,
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    "comments": "",
    "headers": {
        "Subject": "[dpdk-dev] [PATCH v8 00/15] Vhost: add support to packed ring layout",
        "List-Post": "<>",
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        "Cc": ",,,\n\tMaxime Coquelin <>",
        "From": "Maxime Coquelin <>",
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        "Date": "Thu,  5 Jul 2018 23:07:26 +0200",
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        "List-Id": "DPDK patches and discussions <>",
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    "content": "This series is a handover from Jen's \"[PATCH v4 00/20]\nimplement packed virtqueues\", which only implements the\nvhost side. Virtio PMD implementation will follow in a \nnext series.\n\nThe series applies on top of previous reworks I posted\nduring this cycle that merges mergeable and non-mergeable\nreceive paths, and refactors transmit path to re-use\nvector buffers.\n\nI haven't run performance tests for now as the Virtio PMD\nside isn't ready.\n\nThe series has been tested with Tiwei's series implementing\npacked ring support to Kernel's virtio-net driver, and\nwith Wei series implementing the Qemu side.\n\nTo test it, I have used testpmd on host side with a vhost\nvdev and a tap vdev forwarding to each other. Transferts\nof big random files have been done in both ways with\nintegrity verified.\n\nTests have been run with Rx mrg ON/OFF and events suppression\nON/OFF.\n\nTests have also been run with legacy split ring layout to\nensure no regression have been introduced.\n\nChanges since v7:\n=================\n- Align structs and defines naming with Kernel header (Tiwei)\n- Fix event based notifications (Tiwei)\n- Fix Clang build issues caused by unused symbols (Tiwei)\n\nChanges since v6:\n=================\n- Various style cleanups (Tiwei, Jason)\n- Simplify event based notification (Jason)\n- Build support with future kernels (Tiwei)\n- Prevent buffer vectors overflow in map_one_desc (Tiwei)\n\nChanges since v5:\n=================\n- Remove duplicated VHOST_USER_F_PROTOCOL_FEATURES definition (Tiwei)\n- Fix vq_is_ready (Maxime)\n- Fix local used index overflow in flush_shadow_used_ring_packed (Tiwei)\n- Make desc_is_avail() a bool (Tiwei)\n- Improve desc_is_avail() logic (Tiwei)\n- Remove split rings addr NULL assignment in the right patch (Tiwei)\n- Make buffer id a uint16_t (Tiwei)\n\nJens Freimann (2):\n  vhost: add virtio packed virtqueue defines\n  vhost: add helpers for packed virtqueues\n\nMaxime Coquelin (12):\n  vhost: clear shadow used table index at flush time\n  vhost: make indirect desc table copy desc type agnostic\n  vhost: clear batch copy index at copy time\n  vhost: extract split ring handling from Rx and Tx functions\n  vhost: append shadow used ring function names with split\n  vhost: add shadow used ring support for packed rings\n  vhost: create descriptor mapping function\n  vhost: add vector filling support for packed ring\n  vhost: add Rx support for packed ring\n  vhost: add Tx support for packed ring\n  vhost: add notification for packed ring\n  vhost: advertize packed ring layout support\n\nYuanhan Liu (1):\n  vhost: vring address setup for packed queues\n\n lib/librte_vhost/vhost.c      | 115 ++++++-\n lib/librte_vhost/vhost.h      | 130 ++++++-\n lib/librte_vhost/vhost_user.c | 127 +++++--\n lib/librte_vhost/virtio_net.c | 776 +++++++++++++++++++++++++++++++++---------\n 4 files changed, 939 insertions(+), 209 deletions(-)"