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 6FAC94555B; Wed, 3 Jul 2024 12:04:11 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 6C5B9427AD; Wed, 3 Jul 2024 12:04:07 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by mails.dpdk.org (Postfix) with ESMTP id 60FFE427AD for ; Wed, 3 Jul 2024 12:04:05 +0200 (CEST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4639VLJd026180; Wed, 3 Jul 2024 03:04:04 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pfpt0220; bh=n G57nfZ7A5BmVI18RfZaA9srzKWYOLCtvFckdgl68fU=; b=TDUU+qREZtBLfe9lO FC1XQ43qoOo6ywYO68SJlne8E++jBo5zsqtib7mj+1XQvdg7v+z/GpFU3DobvxVP tQ4/MTrLw3w4b2iIob4n1efY+TAoYO4omHnZs3r/Diap7t0IFrggupKX5w7uN6iR vWjVN+NxTQiAuJ/kS6xb+2dLQRXMKJnW2fkRUyr15eb2umNVYXLeWRSJGas1wHeq 23jPJwvS3cBIRWasIzfeDEzue8vESySuNP4tTgmYNIjcw0QNhSnK1VHiUsH4P+X6 BrOJu06hWGVPefB3Uud9ls3D74aH/VpyTtEs27vXaUElS2idiSiG/YzY/15YPKvm Dt0CA== Received: from dc5-exch05.marvell.com ([199.233.59.128]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 40542y03q7-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 03 Jul 2024 03:04:04 -0700 (PDT) Received: from DC5-EXCH05.marvell.com (10.69.176.209) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Wed, 3 Jul 2024 03:04:02 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Wed, 3 Jul 2024 03:04:02 -0700 Received: from localhost.localdomain (unknown [10.28.36.175]) by maili.marvell.com (Postfix) with ESMTP id 3573B5B6921; Wed, 3 Jul 2024 03:03:59 -0700 (PDT) From: Srujana Challa To: , , CC: , , , Subject: [PATCH v3 2/3] net/virtio: store desc IOVA address in vring data structure Date: Wed, 3 Jul 2024 15:33:52 +0530 Message-ID: <20240703100353.2243038-3-schalla@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240703100353.2243038-1-schalla@marvell.com> References: <20240229132919.2186118-2-schalla@marvell.com> <20240703100353.2243038-1-schalla@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: UQzGfau3uXZCmpJdKgW6u0eKFuAOiBQP X-Proofpoint-ORIG-GUID: UQzGfau3uXZCmpJdKgW6u0eKFuAOiBQP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-03_06,2024-07-02_02,2024-05-17_01 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 Stores desc IOVA in the queue's vring data structure, as preliminary work to provide a way for Virtio-user to share desc IOVA to the vhost backend. Signed-off-by: Srujana Challa --- drivers/net/virtio/virtio_ring.h | 12 ++++++++---- drivers/net/virtio/virtqueue.c | 4 ++-- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/virtio/virtio_ring.h b/drivers/net/virtio/virtio_ring.h index 2a25751152..57568c66a9 100644 --- a/drivers/net/virtio/virtio_ring.h +++ b/drivers/net/virtio/virtio_ring.h @@ -83,6 +83,7 @@ struct vring_packed_desc_event { struct vring_packed { unsigned int num; + rte_iova_t desc_iova; struct vring_packed_desc *desc; struct vring_packed_desc_event *driver; struct vring_packed_desc_event *device; @@ -90,6 +91,7 @@ struct vring_packed { struct vring { unsigned int num; + rte_iova_t desc_iova; struct vring_desc *desc; struct vring_avail *avail; struct vring_used *used; @@ -149,11 +151,12 @@ vring_size(struct virtio_hw *hw, unsigned int num, unsigned long align) return size; } static inline void -vring_init_split(struct vring *vr, uint8_t *p, unsigned long align, - unsigned int num) +vring_init_split(struct vring *vr, uint8_t *p, rte_iova_t iova, + unsigned long align, unsigned int num) { vr->num = num; vr->desc = (struct vring_desc *) p; + vr->desc_iova = iova; vr->avail = (struct vring_avail *) (p + num * sizeof(struct vring_desc)); vr->used = (void *) @@ -161,11 +164,12 @@ vring_init_split(struct vring *vr, uint8_t *p, unsigned long align, } static inline void -vring_init_packed(struct vring_packed *vr, uint8_t *p, unsigned long align, - unsigned int num) +vring_init_packed(struct vring_packed *vr, uint8_t *p, rte_iova_t iova, + unsigned long align, unsigned int num) { vr->num = num; vr->desc = (struct vring_packed_desc *)p; + vr->desc_iova = iova; vr->driver = (struct vring_packed_desc_event *)(p + vr->num * sizeof(struct vring_packed_desc)); vr->device = (struct vring_packed_desc_event *) diff --git a/drivers/net/virtio/virtqueue.c b/drivers/net/virtio/virtqueue.c index 6f419665f1..cf46abfd06 100644 --- a/drivers/net/virtio/virtqueue.c +++ b/drivers/net/virtio/virtqueue.c @@ -282,13 +282,13 @@ virtio_init_vring(struct virtqueue *vq) 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, + vring_init_packed(&vq->vq_packed.ring, ring_mem, vq->vq_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_init_split(vr, ring_mem, vq->vq_ring_mem, VIRTIO_VRING_ALIGN, size); vring_desc_init_split(vr->desc, size); } /* -- 2.25.1