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GET /api/patches/44358/?format=api
{ "id": 44358, "url": "http://patches.dpdk.org/api/patches/44358/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20180906181947.20646-5-jfreimann@redhat.com/", "project": { "id": 1, "url": "http://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": "<20180906181947.20646-5-jfreimann@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20180906181947.20646-5-jfreimann@redhat.com", "date": "2018-09-06T18:19:40", "name": "[v5,04/11] net/virtio: flush packed receive virtqueues", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "680e71263f52ed23d2f285eae6176d3008e34f68", "submitter": { "id": 745, "url": "http://patches.dpdk.org/api/people/745/?format=api", "name": "Jens Freimann", "email": "jfreimann@redhat.com" }, "delegate": { "id": 2642, "url": "http://patches.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20180906181947.20646-5-jfreimann@redhat.com/mbox/", "series": [ { "id": 1215, "url": "http://patches.dpdk.org/api/series/1215/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=1215", "date": "2018-09-06T18:19:36", "name": "implement packed virtqueues", "version": 5, "mbox": "http://patches.dpdk.org/series/1215/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/44358/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/44358/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 EC7624F9C;\n\tThu, 6 Sep 2018 20:20:14 +0200 (CEST)", "from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73])\n\tby dpdk.org (Postfix) with ESMTP id 226E94F98\n\tfor <dev@dpdk.org>; Thu, 6 Sep 2018 20:20:14 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5])\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 BC54F8E67D;\n\tThu, 6 Sep 2018 18:20:13 +0000 (UTC)", "from localhost (ovpn-116-129.ams2.redhat.com [10.36.116.129])\n\tby smtp.corp.redhat.com (Postfix) with ESMTPS id 69E47A9E42;\n\tThu, 6 Sep 2018 18:20:13 +0000 (UTC)" ], "From": "Jens Freimann <jfreimann@redhat.com>", "To": "dev@dpdk.org", "Cc": "tiwei.bie@intel.com,\n\tmaxime.coquelin@redhat.com", "Date": "Thu, 6 Sep 2018 19:19:40 +0100", "Message-Id": "<20180906181947.20646-5-jfreimann@redhat.com>", "In-Reply-To": "<20180906181947.20646-1-jfreimann@redhat.com>", "References": "<20180906181947.20646-1-jfreimann@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.11.54.5", "X-Greylist": [ "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.11.55.2]); Thu, 06 Sep 2018 18:20:13 +0000 (UTC)", "inspected by milter-greylist-4.5.16 (mx1.redhat.com\n\t[10.11.55.2]); \n\tThu, 06 Sep 2018 18:20:13 +0000 (UTC) for IP:'10.11.54.5'\n\tDOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com'\n\tHELO:'smtp.corp.redhat.com' FROM:'jfreimann@redhat.com' RCPT:''" ], "Subject": "[dpdk-dev] [PATCH v5 04/11] net/virtio: flush packed receive\n\tvirtqueues", "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": "Flush used descriptors in packed receive virtqueue. As descriptors\ncan be chained we need to look at the stored number of used descriptors\nto find out the length of the chain.\n\nSigned-off-by: Jens Freimann <jfreimann@redhat.com>\n---\n drivers/net/virtio/virtqueue.c | 17 +++++++++++++++++\n 1 file changed, 17 insertions(+)", "diff": "diff --git a/drivers/net/virtio/virtqueue.c b/drivers/net/virtio/virtqueue.c\nindex 56a77cc71..d0520dad1 100644\n--- a/drivers/net/virtio/virtqueue.c\n+++ b/drivers/net/virtio/virtqueue.c\n@@ -58,12 +58,29 @@ virtqueue_detach_unused(struct virtqueue *vq)\n void\n virtqueue_rxvq_flush(struct virtqueue *vq)\n {\n+\tstruct vring_desc_packed *descs = vq->vq_ring.desc_packed;\n \tstruct virtnet_rx *rxq = &vq->rxq;\n \tstruct virtio_hw *hw = vq->hw;\n \tstruct vring_used_elem *uep;\n \tstruct vq_desc_extra *dxp;\n \tuint16_t used_idx, desc_idx;\n \tuint16_t nb_used, i;\n+\tuint16_t size = vq->vq_nentries;\n+\n+\tif (vtpci_packed_queue(vq->hw)) {\n+\t\ti = vq->vq_used_cons_idx;\n+\t\twhile (desc_is_used(&descs[i], &vq->vq_ring) &&\n+\t\t\ti < vq->vq_nentries) {\n+\t\t\tdxp = &vq->vq_descx[i];\n+\t\t\tif (dxp->cookie != NULL)\n+\t\t\t\trte_pktmbuf_free(dxp->cookie);\n+\t\t\tvq->vq_free_cnt += dxp->ndescs;\n+\t\t\ti = i + dxp->ndescs;\n+\t\t\ti = i >= size ? i - size : i;\n+\t\t\tdxp->ndescs = 0;\n+\t\t}\n+\t\treturn;\n+\t}\n \n \tnb_used = VIRTQUEUE_NUSED(vq);\n \n", "prefixes": [ "v5", "04/11" ] }