From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 99F6DA00C2; Wed, 30 Nov 2022 16:58:08 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 66CA242D50; Wed, 30 Nov 2022 16:57:10 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 4215A42D44 for ; Wed, 30 Nov 2022 16:57:08 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669823827; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Bf6SVEOUMuvxIRN4JWpfimskrhOwh/RChIZV0ZrFTVA=; b=Zr+FjFNon9XPAnE4Ut+SIzrgIJZZgJyic7PfSZ+HE+jQO46g7H3ucyCgTDuRCsptnJ9sVJ hpQB0johI2cxYqMwRYV70Er7RbSjLJ66PRW2wyMcKDSG5Ef06S26Z7EGaq7S2ek3dF3s/5 Mfqv6eY6aSgpkE7+dfTsdHY3J9Qd6pQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-414-Z0OXPqM_Mou37nZhYjlSoQ-1; Wed, 30 Nov 2022 10:57:06 -0500 X-MC-Unique: Z0OXPqM_Mou37nZhYjlSoQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8A43F857FAB; Wed, 30 Nov 2022 15:57:04 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.39.208.22]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6980C40C83D9; Wed, 30 Nov 2022 15:57:03 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com, eperezma@redhat.com Cc: Maxime Coquelin Subject: [PATCH v1 11/21] net/virtio: extract virtqueue init from virtio queue init Date: Wed, 30 Nov 2022 16:56:29 +0100 Message-Id: <20221130155639.150553-12-maxime.coquelin@redhat.com> In-Reply-To: <20221130155639.150553-1-maxime.coquelin@redhat.com> References: <20221130155639.150553-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This patch extracts the virtqueue initialization out of the Virtio ethdev queue initialization, as preliminary work to provide a way for Virtio-user to allocate its shadow control virtqueue. Signed-off-by: Maxime Coquelin --- drivers/net/virtio/virtio_ethdev.c | 261 ++-------------------------- drivers/net/virtio/virtqueue.c | 266 +++++++++++++++++++++++++++++ drivers/net/virtio/virtqueue.h | 5 + 3 files changed, 282 insertions(+), 250 deletions(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 46dd5606f6..8f657d2d90 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -221,173 +221,18 @@ virtio_get_nr_vq(struct virtio_hw *hw) return nr_vq; } -static void -virtio_init_vring(struct virtqueue *vq) -{ - int size = vq->vq_nentries; - uint8_t *ring_mem = vq->vq_ring_virt_mem; - - PMD_INIT_FUNC_TRACE(); - - memset(ring_mem, 0, vq->vq_ring_size); - - vq->vq_used_cons_idx = 0; - vq->vq_desc_head_idx = 0; - vq->vq_avail_idx = 0; - vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1); - vq->vq_free_cnt = vq->vq_nentries; - memset(vq->vq_descx, 0, sizeof(struct vq_desc_extra) * vq->vq_nentries); - if (virtio_with_packed_queue(vq->hw)) { - vring_init_packed(&vq->vq_packed.ring, ring_mem, - VIRTIO_VRING_ALIGN, size); - vring_desc_init_packed(vq, size); - } else { - struct vring *vr = &vq->vq_split.ring; - - vring_init_split(vr, ring_mem, VIRTIO_VRING_ALIGN, size); - vring_desc_init_split(vr->desc, size); - } - /* - * Disable device(host) interrupting guest - */ - virtqueue_disable_intr(vq); -} - static void virtio_control_queue_notify(struct virtqueue *vq, __rte_unused void *cookie) { virtqueue_notify(vq); } -static int -virtio_alloc_queue_headers(struct virtqueue *vq, int numa_node, const char *name) -{ - char hdr_name[VIRTQUEUE_MAX_NAME_SZ]; - const struct rte_memzone **hdr_mz; - rte_iova_t *hdr_mem; - ssize_t size; - int queue_type; - - queue_type = virtio_get_queue_type(vq->hw, vq->vq_queue_index); - switch (queue_type) { - case VTNET_TQ: - /* - * For each xmit packet, allocate a virtio_net_hdr - * and indirect ring elements - */ - size = vq->vq_nentries * sizeof(struct virtio_tx_region); - hdr_mz = &vq->txq.hdr_mz; - hdr_mem = &vq->txq.hdr_mem; - break; - case VTNET_CQ: - /* Allocate a page for control vq command, data and status */ - size = rte_mem_page_size(); - hdr_mz = &vq->cq.hdr_mz; - hdr_mem = &vq->cq.hdr_mem; - break; - case VTNET_RQ: - /* fallthrough */ - default: - return 0; - } - - snprintf(hdr_name, sizeof(hdr_name), "%s_hdr", name); - *hdr_mz = rte_memzone_reserve_aligned(hdr_name, size, numa_node, - RTE_MEMZONE_IOVA_CONTIG, RTE_CACHE_LINE_SIZE); - if (*hdr_mz == NULL) { - if (rte_errno == EEXIST) - *hdr_mz = rte_memzone_lookup(hdr_name); - if (*hdr_mz == NULL) - return -ENOMEM; - } - - memset((*hdr_mz)->addr, 0, size); - - if (vq->hw->use_va) - *hdr_mem = (uintptr_t)(*hdr_mz)->addr; - else - *hdr_mem = (uintptr_t)(*hdr_mz)->iova; - - return 0; -} - -static void -virtio_free_queue_headers(struct virtqueue *vq) -{ - const struct rte_memzone **hdr_mz; - rte_iova_t *hdr_mem; - int queue_type; - - queue_type = virtio_get_queue_type(vq->hw, vq->vq_queue_index); - switch (queue_type) { - case VTNET_TQ: - hdr_mz = &vq->txq.hdr_mz; - hdr_mem = &vq->txq.hdr_mem; - break; - case VTNET_CQ: - hdr_mz = &vq->cq.hdr_mz; - hdr_mem = &vq->cq.hdr_mem; - break; - case VTNET_RQ: - /* fallthrough */ - default: - return; - } - - rte_memzone_free(*hdr_mz); - *hdr_mz = NULL; - *hdr_mem = 0; -} - -static int -virtio_rxq_sw_ring_alloc(struct virtqueue *vq, int numa_node) -{ - void *sw_ring; - struct rte_mbuf *mbuf; - size_t size; - - /* SW ring is only used with vectorized datapath */ - if (!vq->hw->use_vec_rx) - return 0; - - size = (RTE_PMD_VIRTIO_RX_MAX_BURST + vq->vq_nentries) * sizeof(vq->rxq.sw_ring[0]); - - sw_ring = rte_zmalloc_socket("sw_ring", size, RTE_CACHE_LINE_SIZE, numa_node); - if (!sw_ring) { - PMD_INIT_LOG(ERR, "can not allocate RX soft ring"); - return -ENOMEM; - } - - mbuf = rte_zmalloc_socket("sw_ring", sizeof(*mbuf), RTE_CACHE_LINE_SIZE, numa_node); - if (!mbuf) { - PMD_INIT_LOG(ERR, "can not allocate fake mbuf"); - rte_free(sw_ring); - return -ENOMEM; - } - - vq->rxq.sw_ring = sw_ring; - vq->rxq.fake_mbuf = mbuf; - - return 0; -} - -static void -virtio_rxq_sw_ring_free(struct virtqueue *vq) -{ - rte_free(vq->rxq.fake_mbuf); - vq->rxq.fake_mbuf = NULL; - rte_free(vq->rxq.sw_ring); - vq->rxq.sw_ring = NULL; -} - static int virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx) { char vq_name[VIRTQUEUE_MAX_NAME_SZ]; - const struct rte_memzone *mz = NULL; - unsigned int vq_size, size; + unsigned int vq_size; struct virtio_hw *hw = dev->data->dev_private; - struct virtnet_ctl *cvq = NULL; struct virtqueue *vq; int queue_type = virtio_get_queue_type(hw, queue_idx); int ret; @@ -414,87 +259,19 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx) snprintf(vq_name, sizeof(vq_name), "port%d_vq%d", dev->data->port_id, queue_idx); - size = RTE_ALIGN_CEIL(sizeof(*vq) + - vq_size * sizeof(struct vq_desc_extra), - RTE_CACHE_LINE_SIZE); - - - vq = rte_zmalloc_socket(vq_name, size, RTE_CACHE_LINE_SIZE, - numa_node); - if (vq == NULL) { - PMD_INIT_LOG(ERR, "can not allocate vq"); + vq = virtqueue_alloc(hw, queue_idx, vq_size, queue_type, numa_node, vq_name); + if (!vq) { + PMD_INIT_LOG(ERR, "virtqueue init failed"); return -ENOMEM; } - hw->vqs[queue_idx] = vq; - vq->hw = hw; - vq->vq_queue_index = queue_idx; - vq->vq_nentries = vq_size; - if (virtio_with_packed_queue(hw)) { - vq->vq_packed.used_wrap_counter = 1; - vq->vq_packed.cached_flags = VRING_PACKED_DESC_F_AVAIL; - vq->vq_packed.event_flags_shadow = 0; - if (queue_type == VTNET_RQ) - vq->vq_packed.cached_flags |= VRING_DESC_F_WRITE; - } - - /* - * Reserve a memzone for vring elements - */ - size = vring_size(hw, vq_size, VIRTIO_VRING_ALIGN); - vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_VRING_ALIGN); - PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d", - size, vq->vq_ring_size); - - mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size, - numa_node, RTE_MEMZONE_IOVA_CONTIG, - VIRTIO_VRING_ALIGN); - if (mz == NULL) { - if (rte_errno == EEXIST) - mz = rte_memzone_lookup(vq_name); - if (mz == NULL) { - ret = -ENOMEM; - goto free_vq; - } - } - - memset(mz->addr, 0, mz->len); - - vq->mz = mz; - if (hw->use_va) - vq->vq_ring_mem = (uintptr_t)mz->addr; - else - vq->vq_ring_mem = mz->iova; - - vq->vq_ring_virt_mem = mz->addr; - PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%" PRIx64, vq->vq_ring_mem); - PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: %p", vq->vq_ring_virt_mem); - - virtio_init_vring(vq); + hw->vqs[queue_idx] = vq; - ret = virtio_alloc_queue_headers(vq, numa_node, vq_name); - if (ret) { - PMD_INIT_LOG(ERR, "Failed to alloc queue headers"); - goto free_mz; - } - - if (queue_type == VTNET_RQ) { - ret = virtio_rxq_sw_ring_alloc(vq, numa_node); - if (ret) - goto free_hdr_mz; - } else if (queue_type == VTNET_TQ) { - virtqueue_txq_indirect_headers_init(vq); - } else if (queue_type == VTNET_CQ) { - cvq = &vq->cq; - hw->cvq = cvq; + if (queue_type == VTNET_CQ) { + hw->cvq = &vq->cq; vq->cq.notify_queue = &virtio_control_queue_notify; } - if (hw->use_va) - vq->mbuf_addr_offset = offsetof(struct rte_mbuf, buf_addr); - else - vq->mbuf_addr_offset = offsetof(struct rte_mbuf, buf_iova); - if (VIRTIO_OPS(hw)->setup_queue(hw, vq) < 0) { PMD_INIT_LOG(ERR, "setup_queue failed"); ret = -EINVAL; @@ -504,15 +281,9 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx) return 0; clean_vq: - hw->cvq = NULL; - if (queue_type == VTNET_RQ) - virtio_rxq_sw_ring_free(vq); -free_hdr_mz: - virtio_free_queue_headers(vq); -free_mz: - rte_memzone_free(mz); -free_vq: - rte_free(vq); + if (queue_type == VTNET_CQ) + hw->cvq = NULL; + virtqueue_free(vq); hw->vqs[queue_idx] = NULL; return ret; @@ -523,7 +294,6 @@ virtio_free_queues(struct virtio_hw *hw) { uint16_t nr_vq = virtio_get_nr_vq(hw); struct virtqueue *vq; - int queue_type; uint16_t i; if (hw->vqs == NULL) @@ -533,16 +303,7 @@ virtio_free_queues(struct virtio_hw *hw) vq = hw->vqs[i]; if (!vq) continue; - - queue_type = virtio_get_queue_type(hw, i); - if (queue_type == VTNET_RQ) { - rte_free(vq->rxq.fake_mbuf); - rte_free(vq->rxq.sw_ring); - } - - virtio_free_queue_headers(vq); - rte_memzone_free(vq->mz); - rte_free(vq); + virtqueue_free(vq); hw->vqs[i] = NULL; } diff --git a/drivers/net/virtio/virtqueue.c b/drivers/net/virtio/virtqueue.c index 7a84796513..1d836f2530 100644 --- a/drivers/net/virtio/virtqueue.c +++ b/drivers/net/virtio/virtqueue.c @@ -2,8 +2,12 @@ * Copyright(c) 2010-2015 Intel Corporation */ #include +#include +#include +#include #include +#include #include "virtqueue.h" #include "virtio_logs.h" @@ -259,3 +263,265 @@ virtqueue_txvq_reset_packed(struct virtqueue *vq) return 0; } + + +static void +virtio_init_vring(struct virtqueue *vq) +{ + int size = vq->vq_nentries; + uint8_t *ring_mem = vq->vq_ring_virt_mem; + + PMD_INIT_FUNC_TRACE(); + + memset(ring_mem, 0, vq->vq_ring_size); + + vq->vq_used_cons_idx = 0; + vq->vq_desc_head_idx = 0; + vq->vq_avail_idx = 0; + vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1); + vq->vq_free_cnt = vq->vq_nentries; + memset(vq->vq_descx, 0, sizeof(struct vq_desc_extra) * vq->vq_nentries); + if (virtio_with_packed_queue(vq->hw)) { + vring_init_packed(&vq->vq_packed.ring, ring_mem, + VIRTIO_VRING_ALIGN, size); + vring_desc_init_packed(vq, size); + } else { + struct vring *vr = &vq->vq_split.ring; + + vring_init_split(vr, ring_mem, VIRTIO_VRING_ALIGN, size); + vring_desc_init_split(vr->desc, size); + } + /* + * Disable device(host) interrupting guest + */ + virtqueue_disable_intr(vq); +} + +static int +virtio_alloc_queue_headers(struct virtqueue *vq, int numa_node, const char *name) +{ + char hdr_name[VIRTQUEUE_MAX_NAME_SZ]; + const struct rte_memzone **hdr_mz; + rte_iova_t *hdr_mem; + ssize_t size; + int queue_type; + + queue_type = virtio_get_queue_type(vq->hw, vq->vq_queue_index); + switch (queue_type) { + case VTNET_TQ: + /* + * For each xmit packet, allocate a virtio_net_hdr + * and indirect ring elements + */ + size = vq->vq_nentries * sizeof(struct virtio_tx_region); + hdr_mz = &vq->txq.hdr_mz; + hdr_mem = &vq->txq.hdr_mem; + break; + case VTNET_CQ: + /* Allocate a page for control vq command, data and status */ + size = rte_mem_page_size(); + hdr_mz = &vq->cq.hdr_mz; + hdr_mem = &vq->cq.hdr_mem; + break; + case VTNET_RQ: + /* fallthrough */ + default: + return 0; + } + + snprintf(hdr_name, sizeof(hdr_name), "%s_hdr", name); + *hdr_mz = rte_memzone_reserve_aligned(hdr_name, size, numa_node, + RTE_MEMZONE_IOVA_CONTIG, RTE_CACHE_LINE_SIZE); + if (*hdr_mz == NULL) { + if (rte_errno == EEXIST) + *hdr_mz = rte_memzone_lookup(hdr_name); + if (*hdr_mz == NULL) + return -ENOMEM; + } + + memset((*hdr_mz)->addr, 0, size); + + if (vq->hw->use_va) + *hdr_mem = (uintptr_t)(*hdr_mz)->addr; + else + *hdr_mem = (uintptr_t)(*hdr_mz)->iova; + + return 0; +} + +static void +virtio_free_queue_headers(struct virtqueue *vq) +{ + const struct rte_memzone **hdr_mz; + rte_iova_t *hdr_mem; + int queue_type; + + queue_type = virtio_get_queue_type(vq->hw, vq->vq_queue_index); + switch (queue_type) { + case VTNET_TQ: + hdr_mz = &vq->txq.hdr_mz; + hdr_mem = &vq->txq.hdr_mem; + break; + case VTNET_CQ: + hdr_mz = &vq->cq.hdr_mz; + hdr_mem = &vq->cq.hdr_mem; + break; + case VTNET_RQ: + /* fallthrough */ + default: + return; + } + + rte_memzone_free(*hdr_mz); + *hdr_mz = NULL; + *hdr_mem = 0; +} + +static int +virtio_rxq_sw_ring_alloc(struct virtqueue *vq, int numa_node) +{ + void *sw_ring; + struct rte_mbuf *mbuf; + size_t size; + + /* SW ring is only used with vectorized datapath */ + if (!vq->hw->use_vec_rx) + return 0; + + size = (RTE_PMD_VIRTIO_RX_MAX_BURST + vq->vq_nentries) * sizeof(vq->rxq.sw_ring[0]); + + sw_ring = rte_zmalloc_socket("sw_ring", size, RTE_CACHE_LINE_SIZE, numa_node); + if (!sw_ring) { + PMD_INIT_LOG(ERR, "can not allocate RX soft ring"); + return -ENOMEM; + } + + mbuf = rte_zmalloc_socket("sw_ring", sizeof(*mbuf), RTE_CACHE_LINE_SIZE, numa_node); + if (!mbuf) { + PMD_INIT_LOG(ERR, "can not allocate fake mbuf"); + rte_free(sw_ring); + return -ENOMEM; + } + + vq->rxq.sw_ring = sw_ring; + vq->rxq.fake_mbuf = mbuf; + + return 0; +} + +static void +virtio_rxq_sw_ring_free(struct virtqueue *vq) +{ + rte_free(vq->rxq.fake_mbuf); + vq->rxq.fake_mbuf = NULL; + rte_free(vq->rxq.sw_ring); + vq->rxq.sw_ring = NULL; +} + +struct virtqueue * +virtqueue_alloc(struct virtio_hw *hw, uint16_t index, uint16_t num, int type, + int node, const char *name) +{ + struct virtqueue *vq; + const struct rte_memzone *mz; + unsigned int size; + + size = sizeof(*vq) + num * sizeof(struct vq_desc_extra); + size = RTE_ALIGN_CEIL(size, RTE_CACHE_LINE_SIZE); + + vq = rte_zmalloc_socket(name, size, RTE_CACHE_LINE_SIZE, node); + if (vq == NULL) { + PMD_INIT_LOG(ERR, "can not allocate vq"); + return NULL; + } + + vq->hw = hw; + vq->vq_queue_index = index; + vq->vq_nentries = num; + if (virtio_with_packed_queue(hw)) { + vq->vq_packed.used_wrap_counter = 1; + vq->vq_packed.cached_flags = VRING_PACKED_DESC_F_AVAIL; + vq->vq_packed.event_flags_shadow = 0; + if (type == VTNET_RQ) + vq->vq_packed.cached_flags |= VRING_DESC_F_WRITE; + } + + /* + * Reserve a memzone for vring elements + */ + size = vring_size(hw, num, VIRTIO_VRING_ALIGN); + vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_VRING_ALIGN); + PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d", size, vq->vq_ring_size); + + mz = rte_memzone_reserve_aligned(name, vq->vq_ring_size, node, + RTE_MEMZONE_IOVA_CONTIG, VIRTIO_VRING_ALIGN); + if (mz == NULL) { + if (rte_errno == EEXIST) + mz = rte_memzone_lookup(name); + if (mz == NULL) + goto free_vq; + } + + memset(mz->addr, 0, mz->len); + vq->mz = mz; + vq->vq_ring_virt_mem = mz->addr; + + if (hw->use_va) { + vq->vq_ring_mem = (uintptr_t)mz->addr; + vq->mbuf_addr_offset = offsetof(struct rte_mbuf, buf_addr); + } else { + vq->vq_ring_mem = mz->iova; + vq->mbuf_addr_offset = offsetof(struct rte_mbuf, buf_iova); + } + + PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%" PRIx64, vq->vq_ring_mem); + PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: %p", vq->vq_ring_virt_mem); + + virtio_init_vring(vq); + + if (virtio_alloc_queue_headers(vq, node, name)) { + PMD_INIT_LOG(ERR, "Failed to alloc queue headers"); + goto free_mz; + } + + switch (type) { + case VTNET_RQ: + if (virtio_rxq_sw_ring_alloc(vq, node)) + goto free_hdr_mz; + break; + case VTNET_TQ: + virtqueue_txq_indirect_headers_init(vq); + break; + } + + return vq; + +free_hdr_mz: + virtio_free_queue_headers(vq); +free_mz: + rte_memzone_free(mz); +free_vq: + rte_free(vq); + + return NULL; +} + +void +virtqueue_free(struct virtqueue *vq) +{ + int type; + + type = virtio_get_queue_type(vq->hw, vq->vq_queue_index); + switch (type) { + case VTNET_RQ: + virtio_rxq_sw_ring_free(vq); + break; + case VTNET_TQ: + case VTNET_CQ: + virtio_free_queue_headers(vq); + break; + } + + rte_memzone_free(vq->mz); + rte_free(vq); +} diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h index d7f8ee79bb..9d4aba11a3 100644 --- a/drivers/net/virtio/virtqueue.h +++ b/drivers/net/virtio/virtqueue.h @@ -385,6 +385,11 @@ int virtqueue_txvq_reset_packed(struct virtqueue *vq); void virtqueue_txq_indirect_headers_init(struct virtqueue *vq); +struct virtqueue *virtqueue_alloc(struct virtio_hw *hw, uint16_t index, + uint16_t num, int type, int node, const char *name); + +void virtqueue_free(struct virtqueue *vq); + static inline int virtqueue_full(const struct virtqueue *vq) { -- 2.38.1