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{
    "id": 69085,
    "url": "https://patches.dpdk.org/api/patches/69085/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20200422061624.110901-7-yong.liu@intel.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": "<20200422061624.110901-7-yong.liu@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20200422061624.110901-7-yong.liu@intel.com",
    "date": "2020-04-22T06:16:21",
    "name": "[v7,6/9] net/virtio: reuse packed ring xmit functions",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "dd13ad4a6b350b121e545c826b0f83688b79930e",
    "submitter": {
        "id": 17,
        "url": "https://patches.dpdk.org/api/people/17/?format=api",
        "name": "Marvin Liu",
        "email": "yong.liu@intel.com"
    },
    "delegate": {
        "id": 2642,
        "url": "https://patches.dpdk.org/api/users/2642/?format=api",
        "username": "mcoquelin",
        "first_name": "Maxime",
        "last_name": "Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20200422061624.110901-7-yong.liu@intel.com/mbox/",
    "series": [
        {
            "id": 9561,
            "url": "https://patches.dpdk.org/api/series/9561/?format=api",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=9561",
            "date": "2020-04-22T06:16:15",
            "name": "add packed ring vectorized path",
            "version": 7,
            "mbox": "https://patches.dpdk.org/series/9561/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/69085/comments/",
    "check": "fail",
    "checks": "https://patches.dpdk.org/api/patches/69085/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Received": [
            "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 57919A00C2;\n\tWed, 22 Apr 2020 08:18:57 +0200 (CEST)",
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 7BE211D15F;\n\tWed, 22 Apr 2020 08:17:48 +0200 (CEST)",
            "from mga12.intel.com (mga12.intel.com [192.55.52.136])\n by dpdk.org (Postfix) with ESMTP id 73FBD1C438\n for <dev@dpdk.org>; Wed, 22 Apr 2020 08:17:43 +0200 (CEST)",
            "from fmsmga004.fm.intel.com ([10.253.24.48])\n by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 21 Apr 2020 23:17:43 -0700",
            "from npg-dpdk-virtual-marvin-dev.sh.intel.com ([10.67.119.56])\n by fmsmga004.fm.intel.com with ESMTP; 21 Apr 2020 23:17:41 -0700"
        ],
        "IronPort-SDR": [
            "\n 39VrxyEpk5gOddwrjHb9CarX6g3zP1DU4R+NUJMUkK2awcvN1GWBFanpUq8k+VGFgi90ErqI/2\n r5yPkA6gfHzg==",
            "\n 1f01j/RV8dnRuj9ZkDtZSBU08he98ICHGxfKJ0hPNytf9YJGDijOmhgV8S1w77jG+J0wXGsC0b\n eY6G/8Ur/Amg=="
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.72,412,1580803200\"; d=\"scan'208\";a=\"279904550\"",
        "From": "Marvin Liu <yong.liu@intel.com>",
        "To": "maxime.coquelin@redhat.com, xiaolong.ye@intel.com, zhihong.wang@intel.com,\n harry.van.haaren@intel.com",
        "Cc": "dev@dpdk.org,\n\tMarvin Liu <yong.liu@intel.com>",
        "Date": "Wed, 22 Apr 2020 14:16:21 +0800",
        "Message-Id": "<20200422061624.110901-7-yong.liu@intel.com>",
        "X-Mailer": "git-send-email 2.17.1",
        "In-Reply-To": "<20200422061624.110901-1-yong.liu@intel.com>",
        "References": "<20200313174230.74661-1-yong.liu@intel.com>\n <20200422061624.110901-1-yong.liu@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v7 6/9] net/virtio: reuse packed ring xmit\n\tfunctions",
        "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 <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 <mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Move xmit offload and packed ring xmit enqueue function to header file.\nThese functions will be reused by packed ring vectorized Tx function.\n\nSigned-off-by: Marvin Liu <yong.liu@intel.com>",
    "diff": "diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c\nindex 7b65d0b0a..cf18fe564 100644\n--- a/drivers/net/virtio/virtio_rxtx.c\n+++ b/drivers/net/virtio/virtio_rxtx.c\n@@ -264,10 +264,6 @@ virtqueue_dequeue_rx_inorder(struct virtqueue *vq,\n \treturn i;\n }\n \n-#ifndef DEFAULT_TX_FREE_THRESH\n-#define DEFAULT_TX_FREE_THRESH 32\n-#endif\n-\n static void\n virtio_xmit_cleanup_inorder_packed(struct virtqueue *vq, int num)\n {\n@@ -562,68 +558,7 @@ virtio_tso_fix_cksum(struct rte_mbuf *m)\n }\n \n \n-/* avoid write operation when necessary, to lessen cache issues */\n-#define ASSIGN_UNLESS_EQUAL(var, val) do {\t\\\n-\tif ((var) != (val))\t\t\t\\\n-\t\t(var) = (val);\t\t\t\\\n-} while (0)\n-\n-#define virtqueue_clear_net_hdr(_hdr) do {\t\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->csum_start, 0);\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->csum_offset, 0);\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->flags, 0);\t\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->gso_type, 0);\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->gso_size, 0);\t\\\n-\tASSIGN_UNLESS_EQUAL((_hdr)->hdr_len, 0);\t\\\n-} while (0)\n-\n-static inline void\n-virtqueue_xmit_offload(struct virtio_net_hdr *hdr,\n-\t\t\tstruct rte_mbuf *cookie,\n-\t\t\tbool offload)\n-{\n-\tif (offload) {\n-\t\tif (cookie->ol_flags & PKT_TX_TCP_SEG)\n-\t\t\tcookie->ol_flags |= PKT_TX_TCP_CKSUM;\n-\n-\t\tswitch (cookie->ol_flags & PKT_TX_L4_MASK) {\n-\t\tcase PKT_TX_UDP_CKSUM:\n-\t\t\thdr->csum_start = cookie->l2_len + cookie->l3_len;\n-\t\t\thdr->csum_offset = offsetof(struct rte_udp_hdr,\n-\t\t\t\tdgram_cksum);\n-\t\t\thdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;\n-\t\t\tbreak;\n-\n-\t\tcase PKT_TX_TCP_CKSUM:\n-\t\t\thdr->csum_start = cookie->l2_len + cookie->l3_len;\n-\t\t\thdr->csum_offset = offsetof(struct rte_tcp_hdr, cksum);\n-\t\t\thdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;\n-\t\t\tbreak;\n-\n-\t\tdefault:\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->csum_offset, 0);\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->flags, 0);\n-\t\t\tbreak;\n-\t\t}\n \n-\t\t/* TCP Segmentation Offload */\n-\t\tif (cookie->ol_flags & PKT_TX_TCP_SEG) {\n-\t\t\thdr->gso_type = (cookie->ol_flags & PKT_TX_IPV6) ?\n-\t\t\t\tVIRTIO_NET_HDR_GSO_TCPV6 :\n-\t\t\t\tVIRTIO_NET_HDR_GSO_TCPV4;\n-\t\t\thdr->gso_size = cookie->tso_segsz;\n-\t\t\thdr->hdr_len =\n-\t\t\t\tcookie->l2_len +\n-\t\t\t\tcookie->l3_len +\n-\t\t\t\tcookie->l4_len;\n-\t\t} else {\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->gso_type, 0);\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->gso_size, 0);\n-\t\t\tASSIGN_UNLESS_EQUAL(hdr->hdr_len, 0);\n-\t\t}\n-\t}\n-}\n \n static inline void\n virtqueue_enqueue_xmit_inorder(struct virtnet_tx *txvq,\n@@ -725,102 +660,6 @@ virtqueue_enqueue_xmit_packed_fast(struct virtnet_tx *txvq,\n \tvirtqueue_store_flags_packed(dp, flags, vq->hw->weak_barriers);\n }\n \n-static inline void\n-virtqueue_enqueue_xmit_packed(struct virtnet_tx *txvq, struct rte_mbuf *cookie,\n-\t\t\t      uint16_t needed, int can_push, int in_order)\n-{\n-\tstruct virtio_tx_region *txr = txvq->virtio_net_hdr_mz->addr;\n-\tstruct vq_desc_extra *dxp;\n-\tstruct virtqueue *vq = txvq->vq;\n-\tstruct vring_packed_desc *start_dp, *head_dp;\n-\tuint16_t idx, id, head_idx, head_flags;\n-\tint16_t head_size = vq->hw->vtnet_hdr_size;\n-\tstruct virtio_net_hdr *hdr;\n-\tuint16_t prev;\n-\tbool prepend_header = false;\n-\n-\tid = in_order ? vq->vq_avail_idx : vq->vq_desc_head_idx;\n-\n-\tdxp = &vq->vq_descx[id];\n-\tdxp->ndescs = needed;\n-\tdxp->cookie = cookie;\n-\n-\thead_idx = vq->vq_avail_idx;\n-\tidx = head_idx;\n-\tprev = head_idx;\n-\tstart_dp = vq->vq_packed.ring.desc;\n-\n-\thead_dp = &vq->vq_packed.ring.desc[idx];\n-\thead_flags = cookie->next ? VRING_DESC_F_NEXT : 0;\n-\thead_flags |= vq->vq_packed.cached_flags;\n-\n-\tif (can_push) {\n-\t\t/* prepend cannot fail, checked by caller */\n-\t\thdr = rte_pktmbuf_mtod_offset(cookie, struct virtio_net_hdr *,\n-\t\t\t\t\t      -head_size);\n-\t\tprepend_header = true;\n-\n-\t\t/* if offload disabled, it is not zeroed below, do it now */\n-\t\tif (!vq->hw->has_tx_offload)\n-\t\t\tvirtqueue_clear_net_hdr(hdr);\n-\t} else {\n-\t\t/* setup first tx ring slot to point to header\n-\t\t * stored in reserved region.\n-\t\t */\n-\t\tstart_dp[idx].addr  = txvq->virtio_net_hdr_mem +\n-\t\t\tRTE_PTR_DIFF(&txr[idx].tx_hdr, txr);\n-\t\tstart_dp[idx].len   = vq->hw->vtnet_hdr_size;\n-\t\thdr = (struct virtio_net_hdr *)&txr[idx].tx_hdr;\n-\t\tidx++;\n-\t\tif (idx >= vq->vq_nentries) {\n-\t\t\tidx -= vq->vq_nentries;\n-\t\t\tvq->vq_packed.cached_flags ^=\n-\t\t\t\tVRING_PACKED_DESC_F_AVAIL_USED;\n-\t\t}\n-\t}\n-\n-\tvirtqueue_xmit_offload(hdr, cookie, vq->hw->has_tx_offload);\n-\n-\tdo {\n-\t\tuint16_t flags;\n-\n-\t\tstart_dp[idx].addr = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq);\n-\t\tstart_dp[idx].len  = cookie->data_len;\n-\t\tif (prepend_header) {\n-\t\t\tstart_dp[idx].addr -= head_size;\n-\t\t\tstart_dp[idx].len += head_size;\n-\t\t\tprepend_header = false;\n-\t\t}\n-\n-\t\tif (likely(idx != head_idx)) {\n-\t\t\tflags = cookie->next ? VRING_DESC_F_NEXT : 0;\n-\t\t\tflags |= vq->vq_packed.cached_flags;\n-\t\t\tstart_dp[idx].flags = flags;\n-\t\t}\n-\t\tprev = idx;\n-\t\tidx++;\n-\t\tif (idx >= vq->vq_nentries) {\n-\t\t\tidx -= vq->vq_nentries;\n-\t\t\tvq->vq_packed.cached_flags ^=\n-\t\t\t\tVRING_PACKED_DESC_F_AVAIL_USED;\n-\t\t}\n-\t} while ((cookie = cookie->next) != NULL);\n-\n-\tstart_dp[prev].id = id;\n-\n-\tvq->vq_free_cnt = (uint16_t)(vq->vq_free_cnt - needed);\n-\tvq->vq_avail_idx = idx;\n-\n-\tif (!in_order) {\n-\t\tvq->vq_desc_head_idx = dxp->next;\n-\t\tif (vq->vq_desc_head_idx == VQ_RING_DESC_CHAIN_END)\n-\t\t\tvq->vq_desc_tail_idx = VQ_RING_DESC_CHAIN_END;\n-\t}\n-\n-\tvirtqueue_store_flags_packed(head_dp, head_flags,\n-\t\t\t\t     vq->hw->weak_barriers);\n-}\n-\n static inline void\n virtqueue_enqueue_xmit(struct virtnet_tx *txvq, struct rte_mbuf *cookie,\n \t\t\tuint16_t needed, int use_indirect, int can_push,\ndiff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h\nindex 43e305ecc..18ae34789 100644\n--- a/drivers/net/virtio/virtqueue.h\n+++ b/drivers/net/virtio/virtqueue.h\n@@ -18,6 +18,7 @@\n \n struct rte_mbuf;\n \n+#define DEFAULT_TX_FREE_THRESH 32\n #define DEFAULT_RX_FREE_THRESH 32\n \n #define VIRTIO_MBUF_BURST_SZ 64\n@@ -562,4 +563,165 @@ virtqueue_notify(struct virtqueue *vq)\n #define VIRTQUEUE_DUMP(vq) do { } while (0)\n #endif\n \n+/* avoid write operation when necessary, to lessen cache issues */\n+#define ASSIGN_UNLESS_EQUAL(var, val) do {\t\\\n+\ttypeof(var) var_ = (var);\t\t\\\n+\ttypeof(val) val_ = (val);\t\t\\\n+\tif ((var_) != (val_))\t\t\t\\\n+\t\t(var_) = (val_);\t\t\\\n+} while (0)\n+\n+#define virtqueue_clear_net_hdr(hdr) do {\t\t\\\n+\ttypeof(hdr) hdr_ = (hdr);\t\t\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->csum_start, 0);\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->csum_offset, 0);\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->flags, 0);\t\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->gso_type, 0);\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->gso_size, 0);\t\\\n+\tASSIGN_UNLESS_EQUAL((hdr_)->hdr_len, 0);\t\\\n+} while (0)\n+\n+static inline void\n+virtqueue_xmit_offload(struct virtio_net_hdr *hdr,\n+\t\t\tstruct rte_mbuf *cookie,\n+\t\t\tbool offload)\n+{\n+\tif (offload) {\n+\t\tif (cookie->ol_flags & PKT_TX_TCP_SEG)\n+\t\t\tcookie->ol_flags |= PKT_TX_TCP_CKSUM;\n+\n+\t\tswitch (cookie->ol_flags & PKT_TX_L4_MASK) {\n+\t\tcase PKT_TX_UDP_CKSUM:\n+\t\t\thdr->csum_start = cookie->l2_len + cookie->l3_len;\n+\t\t\thdr->csum_offset = offsetof(struct rte_udp_hdr,\n+\t\t\t\tdgram_cksum);\n+\t\t\thdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;\n+\t\t\tbreak;\n+\n+\t\tcase PKT_TX_TCP_CKSUM:\n+\t\t\thdr->csum_start = cookie->l2_len + cookie->l3_len;\n+\t\t\thdr->csum_offset = offsetof(struct rte_tcp_hdr, cksum);\n+\t\t\thdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;\n+\t\t\tbreak;\n+\n+\t\tdefault:\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->csum_offset, 0);\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->flags, 0);\n+\t\t\tbreak;\n+\t\t}\n+\n+\t\t/* TCP Segmentation Offload */\n+\t\tif (cookie->ol_flags & PKT_TX_TCP_SEG) {\n+\t\t\thdr->gso_type = (cookie->ol_flags & PKT_TX_IPV6) ?\n+\t\t\t\tVIRTIO_NET_HDR_GSO_TCPV6 :\n+\t\t\t\tVIRTIO_NET_HDR_GSO_TCPV4;\n+\t\t\thdr->gso_size = cookie->tso_segsz;\n+\t\t\thdr->hdr_len =\n+\t\t\t\tcookie->l2_len +\n+\t\t\t\tcookie->l3_len +\n+\t\t\t\tcookie->l4_len;\n+\t\t} else {\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->gso_type, 0);\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->gso_size, 0);\n+\t\t\tASSIGN_UNLESS_EQUAL(hdr->hdr_len, 0);\n+\t\t}\n+\t}\n+}\n+\n+static inline void\n+virtqueue_enqueue_xmit_packed(struct virtnet_tx *txvq, struct rte_mbuf *cookie,\n+\t\t\t      uint16_t needed, int can_push, int in_order)\n+{\n+\tstruct virtio_tx_region *txr = txvq->virtio_net_hdr_mz->addr;\n+\tstruct vq_desc_extra *dxp;\n+\tstruct virtqueue *vq = txvq->vq;\n+\tstruct vring_packed_desc *start_dp, *head_dp;\n+\tuint16_t idx, id, head_idx, head_flags;\n+\tint16_t head_size = vq->hw->vtnet_hdr_size;\n+\tstruct virtio_net_hdr *hdr;\n+\tuint16_t prev;\n+\tbool prepend_header = false;\n+\n+\tid = in_order ? vq->vq_avail_idx : vq->vq_desc_head_idx;\n+\n+\tdxp = &vq->vq_descx[id];\n+\tdxp->ndescs = needed;\n+\tdxp->cookie = cookie;\n+\n+\thead_idx = vq->vq_avail_idx;\n+\tidx = head_idx;\n+\tprev = head_idx;\n+\tstart_dp = vq->vq_packed.ring.desc;\n+\n+\thead_dp = &vq->vq_packed.ring.desc[idx];\n+\thead_flags = cookie->next ? VRING_DESC_F_NEXT : 0;\n+\thead_flags |= vq->vq_packed.cached_flags;\n+\n+\tif (can_push) {\n+\t\t/* prepend cannot fail, checked by caller */\n+\t\thdr = rte_pktmbuf_mtod_offset(cookie, struct virtio_net_hdr *,\n+\t\t\t\t\t      -head_size);\n+\t\tprepend_header = true;\n+\n+\t\t/* if offload disabled, it is not zeroed below, do it now */\n+\t\tif (!vq->hw->has_tx_offload)\n+\t\t\tvirtqueue_clear_net_hdr(hdr);\n+\t} else {\n+\t\t/* setup first tx ring slot to point to header\n+\t\t * stored in reserved region.\n+\t\t */\n+\t\tstart_dp[idx].addr  = txvq->virtio_net_hdr_mem +\n+\t\t\tRTE_PTR_DIFF(&txr[idx].tx_hdr, txr);\n+\t\tstart_dp[idx].len   = vq->hw->vtnet_hdr_size;\n+\t\thdr = (struct virtio_net_hdr *)&txr[idx].tx_hdr;\n+\t\tidx++;\n+\t\tif (idx >= vq->vq_nentries) {\n+\t\t\tidx -= vq->vq_nentries;\n+\t\t\tvq->vq_packed.cached_flags ^=\n+\t\t\t\tVRING_PACKED_DESC_F_AVAIL_USED;\n+\t\t}\n+\t}\n+\n+\tvirtqueue_xmit_offload(hdr, cookie, vq->hw->has_tx_offload);\n+\n+\tdo {\n+\t\tuint16_t flags;\n+\n+\t\tstart_dp[idx].addr = VIRTIO_MBUF_DATA_DMA_ADDR(cookie, vq);\n+\t\tstart_dp[idx].len  = cookie->data_len;\n+\t\tif (prepend_header) {\n+\t\t\tstart_dp[idx].addr -= head_size;\n+\t\t\tstart_dp[idx].len += head_size;\n+\t\t\tprepend_header = false;\n+\t\t}\n+\n+\t\tif (likely(idx != head_idx)) {\n+\t\t\tflags = cookie->next ? VRING_DESC_F_NEXT : 0;\n+\t\t\tflags |= vq->vq_packed.cached_flags;\n+\t\t\tstart_dp[idx].flags = flags;\n+\t\t}\n+\t\tprev = idx;\n+\t\tidx++;\n+\t\tif (idx >= vq->vq_nentries) {\n+\t\t\tidx -= vq->vq_nentries;\n+\t\t\tvq->vq_packed.cached_flags ^=\n+\t\t\t\tVRING_PACKED_DESC_F_AVAIL_USED;\n+\t\t}\n+\t} while ((cookie = cookie->next) != NULL);\n+\n+\tstart_dp[prev].id = id;\n+\n+\tvq->vq_free_cnt = (uint16_t)(vq->vq_free_cnt - needed);\n+\tvq->vq_avail_idx = idx;\n+\n+\tif (!in_order) {\n+\t\tvq->vq_desc_head_idx = dxp->next;\n+\t\tif (vq->vq_desc_head_idx == VQ_RING_DESC_CHAIN_END)\n+\t\t\tvq->vq_desc_tail_idx = VQ_RING_DESC_CHAIN_END;\n+\t}\n+\n+\tvirtqueue_store_flags_packed(head_dp, head_flags,\n+\t\t\t\t     vq->hw->weak_barriers);\n+}\n #endif /* _VIRTQUEUE_H_ */\n",
    "prefixes": [
        "v7",
        "6/9"
    ]
}