From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 5EDDA1B471 for ; Mon, 3 Dec 2018 15:16:49 +0100 (CET) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B8CA94E93F; Mon, 3 Dec 2018 14:16:48 +0000 (UTC) Received: from localhost (dhcp-192-205.str.redhat.com [10.33.192.205]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 58516100195E; Mon, 3 Dec 2018 14:16:48 +0000 (UTC) From: Jens Freimann To: dev@dpdk.org Cc: tiwei.bie@intel.com, maxime.coquelin@redhat.com, Gavin.Hu@arm.com Date: Mon, 3 Dec 2018 15:15:14 +0100 Message-Id: <20181203141515.28368-9-jfreimann@redhat.com> In-Reply-To: <20181203141515.28368-1-jfreimann@redhat.com> References: <20181203141515.28368-1-jfreimann@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 03 Dec 2018 14:16:48 +0000 (UTC) Subject: [dpdk-dev] [PATCH v11 8/9] net/virtio-user: add option to use packed queues X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Dec 2018 14:16:49 -0000 From: Yuanhan Liu Add option to enable packed queue support for virtio-user devices. Signed-off-by: Yuanhan Liu --- .../net/virtio/virtio_user/virtio_user_dev.c | 18 ++++++++++++++---- .../net/virtio/virtio_user/virtio_user_dev.h | 2 +- drivers/net/virtio/virtio_user_ethdev.c | 14 +++++++++++++- 3 files changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c index 20816c936..697ba4ae8 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c @@ -58,6 +58,8 @@ virtio_user_kick_queue(struct virtio_user_dev *dev, uint32_t queue_sel) state.index = queue_sel; state.num = 0; /* no reservation */ + if (dev->features & (1ULL << VIRTIO_F_RING_PACKED)) + state.num |= (1 << 15); dev->ops->send_request(dev, VHOST_USER_SET_VRING_BASE, &state); dev->ops->send_request(dev, VHOST_USER_SET_VRING_ADDR, &addr); @@ -407,12 +409,13 @@ virtio_user_dev_setup(struct virtio_user_dev *dev) 1ULL << VIRTIO_NET_F_GUEST_TSO4 | \ 1ULL << VIRTIO_NET_F_GUEST_TSO6 | \ 1ULL << VIRTIO_F_IN_ORDER | \ - 1ULL << VIRTIO_F_VERSION_1) + 1ULL << VIRTIO_F_VERSION_1 | \ + 1ULL << VIRTIO_F_RING_PACKED) int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, int cq, int queue_size, const char *mac, char **ifname, - int mrg_rxbuf, int in_order) + int mrg_rxbuf, int in_order, int packed_vq) { pthread_mutex_init(&dev->mutex, NULL); snprintf(dev->path, PATH_MAX, "%s", path); @@ -464,10 +467,17 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, if (!in_order) dev->unsupported_features |= (1ull << VIRTIO_F_IN_ORDER); - if (dev->mac_specified) - dev->frontend_features |= (1ull << VIRTIO_NET_F_MAC); + if (packed_vq) + dev->device_features |= (1ull << VIRTIO_F_RING_PACKED); else + dev->device_features &= ~(1ull << VIRTIO_F_RING_PACKED); + + if (dev->mac_specified) { + dev->device_features |= (1ull << VIRTIO_NET_F_MAC); + } else { + dev->device_features &= ~(1ull << VIRTIO_NET_F_MAC); dev->unsupported_features |= (1ull << VIRTIO_NET_F_MAC); + } if (cq) { /* device does not really need to know anything about CQ, diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h index c42ce5d4b..672a8161a 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.h +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h @@ -50,7 +50,7 @@ int virtio_user_start_device(struct virtio_user_dev *dev); int virtio_user_stop_device(struct virtio_user_dev *dev); int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, int cq, int queue_size, const char *mac, char **ifname, - int mrg_rxbuf, int in_order); + int mrg_rxbuf, int in_order, int packed_vq); void virtio_user_dev_uninit(struct virtio_user_dev *dev); void virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx); uint8_t virtio_user_handle_mq(struct virtio_user_dev *dev, uint16_t q_pairs); diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c index f8791391a..af2800605 100644 --- a/drivers/net/virtio/virtio_user_ethdev.c +++ b/drivers/net/virtio/virtio_user_ethdev.c @@ -361,6 +361,8 @@ static const char *valid_args[] = { VIRTIO_USER_ARG_MRG_RXBUF, #define VIRTIO_USER_ARG_IN_ORDER "in_order" VIRTIO_USER_ARG_IN_ORDER, +#define VIRTIO_USER_ARG_PACKED_VQ "packed_vq" + VIRTIO_USER_ARG_PACKED_VQ, NULL }; @@ -468,6 +470,7 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev) char *ifname = NULL; char *mac_addr = NULL; int ret = -1; + uint64_t packed_vq = 0; kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_args); if (!kvlist) { @@ -551,6 +554,15 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev) cq = 1; } + if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_PACKED_VQ) == 1) { + if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_PACKED_VQ, + &get_integer_arg, &packed_vq) < 0) { + PMD_INIT_LOG(ERR, "error to parse %s", + VIRTIO_USER_ARG_PACKED_VQ); + goto end; + } + } + if (queues > 1 && cq == 0) { PMD_INIT_LOG(ERR, "multi-q requires ctrl-q"); goto end; @@ -598,7 +610,7 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev) vu_dev->is_server = false; if (virtio_user_dev_init(hw->virtio_user_dev, path, queues, cq, queue_size, mac_addr, &ifname, mrg_rxbuf, - in_order) < 0) { + in_order, packed_vq) < 0) { PMD_INIT_LOG(ERR, "virtio_user_dev_init fails"); virtio_user_eth_dev_free(eth_dev); goto end; -- 2.17.2