From patchwork Thu Feb 9 09:17:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 123538 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A811041C4D; Thu, 9 Feb 2023 10:19:22 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id C7E2142D31; Thu, 9 Feb 2023 10:17:51 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 73B1A42D93 for ; Thu, 9 Feb 2023 10:17:47 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1675934267; 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=5vEpxqmdjklSYKDU7+tIvdHRtCDnjFNFuzlcM8Dd+qE=; b=FOqJ9vCL3Miqd8tU1Ja68j0dcCrJBR1KDDNwqy2N9xn0nH8cUYZLJzKpnTwMd63FGS6bOw CZz2VyiHmq87SijnvNtU/pqtN6WGvNoNy74ZyMVowSvTc95PGJ4ZsWv6wMg9Xt6MsAtQ2W HLgQwNsrHEB/7qeSFDws8twXLkI1bho= 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-227-sM2vbcxqNHSZhbOUUVTq6g-1; Thu, 09 Feb 2023 04:17:44 -0500 X-MC-Unique: sM2vbcxqNHSZhbOUUVTq6g-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id AA9D718F0241; Thu, 9 Feb 2023 09:17:43 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.39.208.26]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5F1C0492B00; Thu, 9 Feb 2023 09:17:42 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com, eperezma@redhat.com, stephen@networkplumber.org Cc: Maxime Coquelin Subject: [PATCH 18/21] net/virtio-user: add new callback to enable control queue Date: Thu, 9 Feb 2023 10:17:07 +0100 Message-Id: <20230209091710.485512-19-maxime.coquelin@redhat.com> In-Reply-To: <20230209091710.485512-1-maxime.coquelin@redhat.com> References: <20230209091710.485512-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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 introduces a new callback that is to be called when the backend supports control virtqueue. Implementation for Vhost-vDPA backend is added in this patch. Signed-off-by: Maxime Coquelin Reviewed-by: Chenbo Xia Acked-by: Eugenio Pérez --- drivers/net/virtio/virtio_user/vhost.h | 1 + drivers/net/virtio/virtio_user/vhost_vdpa.c | 12 ++++++++++++ drivers/net/virtio/virtio_user/virtio_user_dev.c | 3 +++ 3 files changed, 16 insertions(+) diff --git a/drivers/net/virtio/virtio_user/vhost.h b/drivers/net/virtio/virtio_user/vhost.h index dfbf6be033..f817cab77a 100644 --- a/drivers/net/virtio/virtio_user/vhost.h +++ b/drivers/net/virtio/virtio_user/vhost.h @@ -82,6 +82,7 @@ struct virtio_user_backend_ops { int (*get_config)(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len); int (*set_config)(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off, uint32_t len); + int (*cvq_enable)(struct virtio_user_dev *dev, int enable); int (*enable_qp)(struct virtio_user_dev *dev, uint16_t pair_idx, int enable); int (*dma_map)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len); int (*dma_unmap)(struct virtio_user_dev *dev, void *addr, uint64_t iova, size_t len); diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c index a0897f8dd1..ebf6011769 100644 --- a/drivers/net/virtio/virtio_user/vhost_vdpa.c +++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c @@ -564,6 +564,17 @@ vhost_vdpa_destroy(struct virtio_user_dev *dev) return 0; } +static int +vhost_vdpa_cvq_enable(struct virtio_user_dev *dev, int enable) +{ + struct vhost_vring_state state = { + .index = dev->max_queue_pairs * 2, + .num = enable, + }; + + return vhost_vdpa_set_vring_enable(dev, &state); +} + static int vhost_vdpa_enable_queue_pair(struct virtio_user_dev *dev, uint16_t pair_idx, @@ -629,6 +640,7 @@ struct virtio_user_backend_ops virtio_ops_vdpa = { .set_status = vhost_vdpa_set_status, .get_config = vhost_vdpa_get_config, .set_config = vhost_vdpa_set_config, + .cvq_enable = vhost_vdpa_cvq_enable, .enable_qp = vhost_vdpa_enable_queue_pair, .dma_map = vhost_vdpa_dma_map_batch, .dma_unmap = vhost_vdpa_dma_unmap_batch, diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c index 1a5386a3f6..b0d603ee12 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c @@ -767,6 +767,9 @@ virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs) for (i = q_pairs; i < dev->max_queue_pairs; ++i) ret |= dev->ops->enable_qp(dev, i, 0); + if (dev->scvq) + ret |= dev->ops->cvq_enable(dev, 1); + dev->queue_pairs = q_pairs; return ret;