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{
    "id": 216,
    "url": "http://patches.dpdk.org/api/patches/216/",
    "web_url": "http://patches.dpdk.org/patch/216/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/",
        "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"
    },
    "msgid": "<20140826020853.851222673@networkplumber.org>",
    "date": "2014-08-26T02:07:54",
    "name": "[dpdk-dev,RFC,08/10] virtio: remove redundant vq_alignment",
    "commit_ref": null,
    "pull_url": null,
    "state": "rfc",
    "archived": true,
    "hash": "3bc21004cf1df9911be1efe7be89884acc8a49fa",
    "submitter": {
        "id": 27,
        "url": "http://patches.dpdk.org/api/people/27/",
        "name": "Stephen Hemminger",
        "email": "stephen@networkplumber.org"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/patch/216/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/216/comments/",
    "check": "pending",
    "checks": "http://patches.dpdk.org/api/patches/216/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<stephen@networkplumber.org>",
        "References": "<20140826020746.062748014@networkplumber.org>",
        "X-Mailman-Version": "2.1.15",
        "Date": "Mon, 25 Aug 2014 19:07:54 -0700",
        "X-List-Received-Date": "Tue, 26 Aug 2014 02:04:59 -0000",
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        "Message-Id": "<20140826020853.851222673@networkplumber.org>",
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        "Received": [
            "from mail-pd0-f182.google.com (mail-pd0-f182.google.com\n\t[209.85.192.182]) by dpdk.org (Postfix) with ESMTP id 2AC0AB396\n\tfor <dev@dpdk.org>; Tue, 26 Aug 2014 04:04:59 +0200 (CEST)",
            "by mail-pd0-f182.google.com with SMTP id fp1so21324042pdb.41\n\tfor <dev@dpdk.org>; Mon, 25 Aug 2014 19:08:56 -0700 (PDT)",
            "from localhost (static-50-53-65-80.bvtn.or.frontiernet.net.\n\t[50.53.65.80]) by mx.google.com with ESMTPSA id\n\tkk7sm5152020pab.31.2014.08.25.19.08.54 for <multiple recipients>\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tMon, 25 Aug 2014 19:08:55 -0700 (PDT)"
        ],
        "Subject": "[dpdk-dev] [RFC 08/10] virtio: remove redundant vq_alignment",
        "X-Received": "by 10.68.57.140 with SMTP id i12mr33662942pbq.44.1409018936173; \n\tMon, 25 Aug 2014 19:08:56 -0700 (PDT)",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "Precedence": "list",
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        "From": "Stephen Hemminger <stephen@networkplumber.org>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Cc": "dev@dpdk.org",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "MIME-Version": "1.0",
        "To": "Ouyang Changchun <changchun.ouyang@intel.com>",
        "Content-Disposition": "inline; filename=virtio-no-align.patch"
    },
    "content": "Since vq_alignment is constant (always 4K), it does not\nneed to be part of the vring struct.\n\nSigned-off-by: Stephen Hemminger <stephen@networkplumber.org>\n\n---\n lib/librte_pmd_virtio/virtio_ethdev.c |    1 -\n lib/librte_pmd_virtio/virtio_rxtx.c   |    2 +-\n lib/librte_pmd_virtio/virtqueue.h     |    3 +--\n 3 files changed, 2 insertions(+), 4 deletions(-)",
    "diff": "--- a/lib/librte_pmd_virtio/virtio_ethdev.c\t2014-08-25 19:00:09.918550097 -0700\n+++ b/lib/librte_pmd_virtio/virtio_ethdev.c\t2014-08-25 19:00:09.918550097 -0700\n@@ -290,7 +290,6 @@ int virtio_dev_queue_setup(struct rte_et\n \tvq->port_id = dev->data->port_id;\n \tvq->queue_id = queue_idx;\n \tvq->vq_queue_index = vtpci_queue_idx;\n-\tvq->vq_alignment = VIRTIO_PCI_VRING_ALIGN;\n \tvq->vq_nentries = vq_size;\n \tvq->vq_free_cnt = vq_size;\n \n--- a/lib/librte_pmd_virtio/virtio_rxtx.c\t2014-08-25 19:00:09.918550097 -0700\n+++ b/lib/librte_pmd_virtio/virtio_rxtx.c\t2014-08-25 19:00:09.918550097 -0700\n@@ -258,7 +258,7 @@ virtio_dev_vring_start(struct virtqueue\n \t * Reinitialise since virtio port might have been stopped and restarted\n \t */\n \tmemset(vq->vq_ring_virt_mem, 0, vq->vq_ring_size);\n-\tvring_init(vr, size, ring_mem, vq->vq_alignment);\n+\tvring_init(vr, size, ring_mem, VIRTIO_PCI_VRING_ALIGN);\n \tvq->vq_used_cons_idx = 0;\n \tvq->vq_desc_head_idx = 0;\n \tvq->vq_avail_idx = 0;\n--- a/lib/librte_pmd_virtio/virtqueue.h\t2014-08-25 19:00:09.918550097 -0700\n+++ b/lib/librte_pmd_virtio/virtqueue.h\t2014-08-25 19:00:09.918550097 -0700\n@@ -139,8 +139,7 @@ struct virtqueue {\n \tuint8_t     port_id;              /**< Device port identifier. */\n \n \tvoid        *vq_ring_virt_mem;    /**< linear address of vring*/\n-\tint         vq_alignment;\n-\tint         vq_ring_size;\n+\tunsigned int vq_ring_size;\n \tphys_addr_t vq_ring_mem;          /**< physical address of vring */\n \n \tstruct vring vq_ring;    /**< vring keeping desc, used and avail */\n",
    "prefixes": [
        "dpdk-dev",
        "RFC",
        "08/10"
    ]
}