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GET /api/patches/42438/?format=api
{ "id": 42438, "url": "http://patches.dpdk.org/api/patches/42438/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20180705210741.17974-11-maxime.coquelin@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": "<20180705210741.17974-11-maxime.coquelin@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20180705210741.17974-11-maxime.coquelin@redhat.com", "date": "2018-07-05T21:07:36", "name": "[v8,10/15] vhost: create descriptor mapping function", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "50e76989f67061064492720e5d0bfff2cadc0a85", "submitter": { "id": 512, "url": "http://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@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/20180705210741.17974-11-maxime.coquelin@redhat.com/mbox/", "series": [ { "id": 443, "url": "http://patches.dpdk.org/api/series/443/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=443", "date": "2018-07-05T21:07:26", "name": "Vhost: add support to packed ring layout", "version": 8, "mbox": "http://patches.dpdk.org/series/443/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/42438/comments/", "check": "fail", "checks": "http://patches.dpdk.org/api/patches/42438/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 8C9CD1BF6F;\n\tThu, 5 Jul 2018 23:08:07 +0200 (CEST)", "from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73])\n\tby dpdk.org (Postfix) with ESMTP id 682351BF6B\n\tfor <dev@dpdk.org>; Thu, 5 Jul 2018 23:08:05 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6])\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 12C3981A4EA9;\n\tThu, 5 Jul 2018 21:08:05 +0000 (UTC)", "from localhost.localdomain (ovpn-112-37.ams2.redhat.com\n\t[10.36.112.37])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 55F222156899;\n\tThu, 5 Jul 2018 21:08:03 +0000 (UTC)" ], "From": "Maxime Coquelin <maxime.coquelin@redhat.com>", "To": "tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com,\n\tdev@dpdk.org", "Cc": "mst@redhat.com, jasowang@redhat.com, wexu@redhat.com,\n\tMaxime Coquelin <maxime.coquelin@redhat.com>", "Date": "Thu, 5 Jul 2018 23:07:36 +0200", "Message-Id": "<20180705210741.17974-11-maxime.coquelin@redhat.com>", "In-Reply-To": "<20180705210741.17974-1-maxime.coquelin@redhat.com>", "References": "<20180705210741.17974-1-maxime.coquelin@redhat.com>", "X-Scanned-By": "MIMEDefang 2.78 on 10.11.54.6", "X-Greylist": [ "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.11.55.8]); Thu, 05 Jul 2018 21:08:05 +0000 (UTC)", "inspected by milter-greylist-4.5.16 (mx1.redhat.com\n\t[10.11.55.8]); \n\tThu, 05 Jul 2018 21:08:05 +0000 (UTC) for IP:'10.11.54.6'\n\tDOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com'\n\tHELO:'smtp.corp.redhat.com' FROM:'maxime.coquelin@redhat.com' RCPT:''" ], "Subject": "[dpdk-dev] [PATCH v8 10/15] vhost: create descriptor mapping\n\tfunction", "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": "Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n---\n lib/librte_vhost/virtio_net.c | 70 ++++++++++++++++++++++++-------------------\n 1 file changed, 40 insertions(+), 30 deletions(-)", "diff": "diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c\nindex d335afd65..a3500e69c 100644\n--- a/lib/librte_vhost/virtio_net.c\n+++ b/lib/librte_vhost/virtio_net.c\n@@ -291,6 +291,40 @@ virtio_enqueue_offload(struct rte_mbuf *m_buf, struct virtio_net_hdr *net_hdr)\n \t}\n }\n \n+static __rte_always_inline int\n+map_one_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,\n+\t\tstruct buf_vector *buf_vec, uint16_t *vec_idx,\n+\t\tuint64_t desc_iova, uint64_t desc_len, uint8_t perm)\n+{\n+\tuint16_t vec_id = *vec_idx;\n+\n+\twhile (desc_len) {\n+\t\tuint64_t desc_addr;\n+\t\tuint64_t desc_chunck_len = desc_len;\n+\n+\t\tif (unlikely(vec_id >= BUF_VECTOR_MAX))\n+\t\t\treturn -1;\n+\n+\t\tdesc_addr = vhost_iova_to_vva(dev, vq,\n+\t\t\t\tdesc_iova,\n+\t\t\t\t&desc_chunck_len,\n+\t\t\t\tperm);\n+\t\tif (unlikely(!desc_addr))\n+\t\t\treturn -1;\n+\n+\t\tbuf_vec[vec_id].buf_iova = desc_iova;\n+\t\tbuf_vec[vec_id].buf_addr = desc_addr;\n+\t\tbuf_vec[vec_id].buf_len = desc_chunck_len;\n+\n+\t\tdesc_len -= desc_chunck_len;\n+\t\tdesc_iova += desc_chunck_len;\n+\t\tvec_id++;\n+\t}\n+\t*vec_idx = vec_id;\n+\n+\treturn 0;\n+}\n+\n static __rte_always_inline int\n fill_vec_buf_split(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \t\t\t uint32_t avail_idx, uint16_t *vec_idx,\n@@ -300,7 +334,7 @@ fill_vec_buf_split(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \tuint16_t idx = vq->avail->ring[avail_idx & (vq->size - 1)];\n \tuint16_t vec_id = *vec_idx;\n \tuint32_t len = 0;\n-\tuint64_t dlen, desc_avail, desc_iova;\n+\tuint64_t dlen;\n \tstruct vring_desc *descs = vq->desc;\n \tstruct vring_desc *idesc = NULL;\n \n@@ -337,37 +371,13 @@ fill_vec_buf_split(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \t\t\treturn -1;\n \t\t}\n \n-\n \t\tlen += descs[idx].len;\n-\t\tdesc_avail = descs[idx].len;\n-\t\tdesc_iova = descs[idx].addr;\n-\n-\t\twhile (desc_avail) {\n-\t\t\tuint64_t desc_addr;\n-\t\t\tuint64_t desc_chunck_len = desc_avail;\n-\n-\t\t\tif (unlikely(vec_id >= BUF_VECTOR_MAX)) {\n-\t\t\t\tfree_ind_table(idesc);\n-\t\t\t\treturn -1;\n-\t\t\t}\n \n-\t\t\tdesc_addr = vhost_iova_to_vva(dev, vq,\n-\t\t\t\t\tdesc_iova,\n-\t\t\t\t\t&desc_chunck_len,\n-\t\t\t\t\tperm);\n-\t\t\tif (unlikely(!desc_addr)) {\n-\t\t\t\tfree_ind_table(idesc);\n-\t\t\t\treturn -1;\n-\t\t\t}\n-\n-\t\t\tbuf_vec[vec_id].buf_iova = desc_iova;\n-\t\t\tbuf_vec[vec_id].buf_addr = desc_addr;\n-\t\t\tbuf_vec[vec_id].buf_len = desc_chunck_len;\n-\t\t\tbuf_vec[vec_id].desc_idx = idx;\n-\n-\t\t\tdesc_avail -= desc_chunck_len;\n-\t\t\tdesc_iova += desc_chunck_len;\n-\t\t\tvec_id++;\n+\t\tif (unlikely(map_one_desc(dev, vq, buf_vec, &vec_id,\n+\t\t\t\t\t\tdescs[idx].addr, descs[idx].len,\n+\t\t\t\t\t\tperm))) {\n+\t\t\tfree_ind_table(idesc);\n+\t\t\treturn -1;\n \t\t}\n \n \t\tif ((descs[idx].flags & VRING_DESC_F_NEXT) == 0)\n", "prefixes": [ "v8", "10/15" ] }