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GET /api/patches/47356/?format=api
{ "id": 47356, "url": "http://patchwork.dpdk.org/api/patches/47356/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20181024143236.21271-4-jfreimann@redhat.com/", "project": { "id": 1, "url": "http://patchwork.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": "<20181024143236.21271-4-jfreimann@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181024143236.21271-4-jfreimann@redhat.com", "date": "2018-10-24T14:32:31", "name": "[v9,3/8] net/virtio: add packed virtqueue helpers", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "b8378cdd25b95e9fed5d3108de1b0e95cda390f9", "submitter": { "id": 745, "url": "http://patchwork.dpdk.org/api/people/745/?format=api", "name": "Jens Freimann", "email": "jfreimann@redhat.com" }, "delegate": { "id": 2642, "url": "http://patchwork.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20181024143236.21271-4-jfreimann@redhat.com/mbox/", "series": [ { "id": 2074, "url": "http://patchwork.dpdk.org/api/series/2074/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=2074", "date": "2018-10-24T14:32:28", "name": "implement packed virtqueues", "version": 9, "mbox": "http://patchwork.dpdk.org/series/2074/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/47356/comments/", "check": "success", "checks": "http://patchwork.dpdk.org/api/patches/47356/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 AC0615B2E;\n\tWed, 24 Oct 2018 16:33:08 +0200 (CEST)", "from mx1.redhat.com (mx1.redhat.com [209.132.183.28])\n\tby dpdk.org (Postfix) with ESMTP id CC30C5A44\n\tfor <dev@dpdk.org>; Wed, 24 Oct 2018 16:33:06 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22])\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 2DFDB80464;\n\tWed, 24 Oct 2018 14:33:06 +0000 (UTC)", "from localhost (ovpn-117-63.ams2.redhat.com [10.36.117.63])\n\tby smtp.corp.redhat.com (Postfix) with ESMTPS id 968E310018FD;\n\tWed, 24 Oct 2018 14:33:00 +0000 (UTC)" ], "From": "Jens Freimann <jfreimann@redhat.com>", "To": "dev@dpdk.org", "Cc": "tiwei.bie@intel.com,\n\tmaxime.coquelin@redhat.com", "Date": "Wed, 24 Oct 2018 16:32:31 +0200", "Message-Id": "<20181024143236.21271-4-jfreimann@redhat.com>", "In-Reply-To": "<20181024143236.21271-1-jfreimann@redhat.com>", "References": "<20181024143236.21271-1-jfreimann@redhat.com>", "X-Scanned-By": "MIMEDefang 2.84 on 10.5.11.22", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.28]); Wed, 24 Oct 2018 14:33:06 +0000 (UTC)", "Subject": "[dpdk-dev] [PATCH v9 3/8] net/virtio: add packed virtqueue helpers", "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": "Add helper functions to set/clear and check descriptor flags.\n\nSigned-off-by: Jens Freimann <jfreimann@redhat.com>\n---\n drivers/net/virtio/virtio_ring.h | 26 ++++++++++++++++++++++++++\n 1 file changed, 26 insertions(+)", "diff": "diff --git a/drivers/net/virtio/virtio_ring.h b/drivers/net/virtio/virtio_ring.h\nindex f84ab5e34..629d3477a 100644\n--- a/drivers/net/virtio/virtio_ring.h\n+++ b/drivers/net/virtio/virtio_ring.h\n@@ -77,6 +77,8 @@ struct vring_packed_desc_event {\n \n struct vring {\n \tunsigned int num;\n+\tunsigned int avail_wrap_counter;\n+\tunsigned int used_wrap_counter;\n \tunion {\n \t\tstruct vring_desc_packed *desc_packed;\n \t\tstruct vring_desc *desc;\n@@ -91,6 +93,30 @@ struct vring {\n \t};\n };\n \n+static inline void\n+_set_desc_avail(struct vring_desc_packed *desc, int wrap_counter)\n+{\n+\tdesc->flags |= VRING_DESC_F_AVAIL(wrap_counter) |\n+\t\t VRING_DESC_F_USED(!wrap_counter);\n+}\n+\n+static inline void\n+set_desc_avail(struct vring *vr, struct vring_desc_packed *desc)\n+{\n+\t_set_desc_avail(desc, vr->avail_wrap_counter);\n+}\n+\n+static inline int\n+desc_is_used(struct vring_desc_packed *desc, struct vring *vr)\n+{\n+\tuint16_t used, flags;\n+\n+\tflags = desc->flags;\n+\tused = !!(flags & VRING_DESC_F_USED(1));\n+\n+\treturn used == vr->used_wrap_counter;\n+}\n+\n /* The standard layout for the ring is a continuous chunk of memory which\n * looks like this. We assume num is a power of 2.\n *\n", "prefixes": [ "v9", "3/8" ] }