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GET /api/patches/47707/?format=api
{ "id": 47707, "url": "https://patches.dpdk.org/api/patches/47707/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20181102090749.17316-1-jfreimann@redhat.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20181102090749.17316-1-jfreimann@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181102090749.17316-1-jfreimann@redhat.com", "date": "2018-11-02T09:07:40", "name": "[v10,0/9] implement packed virtqueues", "commit_ref": null, "pull_url": null, "state": null, "archived": false, "hash": null, "submitter": { "id": 745, "url": "https://patches.dpdk.org/api/people/745/?format=api", "name": "Jens Freimann", "email": "jfreimann@redhat.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20181102090749.17316-1-jfreimann@redhat.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/47707/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/47707/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 059AD7D05;\n\tFri, 2 Nov 2018 10:07:57 +0100 (CET)", "from mx1.redhat.com (mx1.redhat.com [209.132.183.28])\n\tby dpdk.org (Postfix) with ESMTP id 7E6665B30\n\tfor <dev@dpdk.org>; Fri, 2 Nov 2018 10:07:56 +0100 (CET)", "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id CBBC7394D52;\n\tFri, 2 Nov 2018 09:07:55 +0000 (UTC)", "from localhost (ovpn-116-180.ams2.redhat.com [10.36.116.180])\n\tby smtp.corp.redhat.com (Postfix) with ESMTPS id 708575C1A1;\n\tFri, 2 Nov 2018 09:07:51 +0000 (UTC)" ], "From": "Jens Freimann <jfreimann@redhat.com>", "To": "dev@dpdk.org", "Cc": "tiwei.bie@intel.com,\n\tmaxime.coquelin@redhat.com,\n\tGavin.Hu@arm.com", "Date": "Fri, 2 Nov 2018 10:07:40 +0100", "Message-Id": "<20181102090749.17316-1-jfreimann@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.16", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.38]); Fri, 02 Nov 2018 09:07:55 +0000 (UTC)", "Subject": "[dpdk-dev] [PATCH v10 0/9] implement packed virtqueues", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "This is a basic implementation of packed virtqueues as specified in the\nVirtio 1.1 draft. A compiled version of the current draft is available\nat https://github.com/oasis-tcs/virtio-docs.git (or as .pdf at\nhttps://github.com/oasis-tcs/virtio-docs/blob/master/virtio-v1.1-packed-wd10.pdf\n\nA packed virtqueue is different from a split virtqueue in that it\nconsists of only a single descriptor ring that replaces available and\nused ring, index and descriptor pointers.\n\nEach descriptor is readable and writable and has a flags field. These flags\nwill mark if a descriptor is available or used. To detect new available descriptors\neven after the ring has wrapped, device and driver each have a\nsingle-bit wrap counter that is flipped from 0 to 1 and vice versa every time\nthe last descriptor in the ring is used/made available.\n\nv9-v10:\n * don't mix index into buffer list and descriptors\n * whitespace and formatting issues\n * remove \"VQ:\" in dump virtqueue patch\n * add extra packed vring struct to virtqueue and change function\n prototypes and code accordingly\n * move wrap_counters to virtqueue\n * make if-conditions for packed and !packed more clear in\n set_rxtx_funcs()\n * initialize wrap counters in first patch, instead of rx and tx\n implementation patch\n * make virtio-user not supported with packed virtqueues, to\n be fixed in other patch set?\n\nv8-v9:\n * fix virtio_ring_free_chain_packed() to handle descriptors\n correctly in case of out-of-order\n * fix check in virtqueue_xmit_cleanup_packed() to improve performance\n\nv7->v8:\n * move desc_is_used change to correct patch\n * remove trailing newline\n * correct xmit code, flags update and memory barrier\n * move packed desc init to dedicated function, split\n and packed variant\n\n\nJens Freimann (9):\n net/virtio: vring init for packed queues\n net/virtio: add packed virtqueue defines\n net/virtio: add packed virtqueue helpers\n net/virtio: dump packed virtqueue data\n net/virtio: implement transmit path for packed queues\n net/virtio: implement receive path for packed queues\n net/virtio: add virtio send command packed queue support\n net/virtio: enable packed virtqueues by default\n net/virtio-user: disable packed virtqueues when CTRL_VQ enabled\n\n drivers/net/virtio/virtio_ethdev.c | 202 +++++--\n drivers/net/virtio/virtio_ethdev.h | 5 +\n drivers/net/virtio/virtio_pci.h | 7 +\n drivers/net/virtio/virtio_ring.h | 64 +-\n drivers/net/virtio/virtio_rxtx.c | 561 +++++++++++++++++-\n .../net/virtio/virtio_user/virtio_user_dev.c | 1 +\n drivers/net/virtio/virtqueue.c | 22 +\n drivers/net/virtio/virtqueue.h | 69 ++-\n 8 files changed, 859 insertions(+), 72 deletions(-)", "diff": null, "prefixes": [ "v10", "0/9" ] }