From patchwork Thu Apr 5 10:10:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jens Freimann X-Patchwork-Id: 37267 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id C33FA1C9A6; Thu, 5 Apr 2018 12:11:09 +0200 (CEST) Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by dpdk.org (Postfix) with ESMTP id 00BB11C99C for ; Thu, 5 Apr 2018 12:11:07 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9249A406E8C3; Thu, 5 Apr 2018 10:11:07 +0000 (UTC) Received: from localhost (dhcp-192-241.str.redhat.com [10.33.192.241]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 438739C067; Thu, 5 Apr 2018 10:11:01 +0000 (UTC) From: Jens Freimann To: dev@dpdk.org Cc: tiwei.bie@intel.com, yliu@fridaylinux.org, maxime.coquelin@redhat.com, mst@redhat.com Date: Thu, 5 Apr 2018 12:10:16 +0200 Message-Id: <20180405101031.26468-7-jfreimann@redhat.com> In-Reply-To: <20180405101031.26468-1-jfreimann@redhat.com> References: <20180405101031.26468-1-jfreimann@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Thu, 05 Apr 2018 10:11:07 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Thu, 05 Apr 2018 10:11:07 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jfreimann@redhat.com' RCPT:'' Subject: [dpdk-dev] [PATCH v3 06/21] 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Yuanhan Liu Add option to enable packed queue support for virtio-user devices. Signed-off-by: Yuanhan Liu Reviewed-by: Maxime Coquelin --- drivers/net/virtio/virtio_user/virtio_user_dev.c | 12 ++++++++++-- drivers/net/virtio/virtio_user/virtio_user_dev.h | 3 ++- drivers/net/virtio/virtio_user_ethdev.c | 15 ++++++++++++++- 3 files changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c index f90fee9e5..e5e7af185 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c @@ -314,11 +314,13 @@ virtio_user_dev_setup(struct virtio_user_dev *dev) 1ULL << VIRTIO_NET_F_GUEST_CSUM | \ 1ULL << VIRTIO_NET_F_GUEST_TSO4 | \ 1ULL << VIRTIO_NET_F_GUEST_TSO6 | \ - 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 cq, int queue_size, const char *mac, char **ifname, + int packed_vq) { snprintf(dev->path, PATH_MAX, "%s", path); dev->max_queue_pairs = queues; @@ -347,6 +349,12 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues, PMD_INIT_LOG(ERR, "get_features failed: %s", strerror(errno)); return -1; } + + 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); diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h index 5f8755771..50c60c8a7 100644 --- a/drivers/net/virtio/virtio_user/virtio_user_dev.h +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h @@ -42,7 +42,8 @@ int is_vhost_user_by_type(const char *path); 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 cq, int queue_size, const char *mac, char **ifname, + 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); #endif diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c index 263649006..1c6086f14 100644 --- a/drivers/net/virtio/virtio_user_ethdev.c +++ b/drivers/net/virtio/virtio_user_ethdev.c @@ -278,6 +278,8 @@ static const char *valid_args[] = { VIRTIO_USER_ARG_QUEUE_SIZE, #define VIRTIO_USER_ARG_INTERFACE_NAME "iface" VIRTIO_USER_ARG_INTERFACE_NAME, +#define VIRTIO_USER_ARG_PACKED_VQ "packed_vq" + VIRTIO_USER_ARG_PACKED_VQ, NULL }; @@ -382,6 +384,7 @@ 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) { @@ -456,6 +459,15 @@ 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; @@ -477,7 +489,8 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev) hw = eth_dev->data->dev_private; if (virtio_user_dev_init(hw->virtio_user_dev, path, queues, cq, - queue_size, mac_addr, &ifname) < 0) { + queue_size, mac_addr, &ifname, + packed_vq) < 0) { PMD_INIT_LOG(ERR, "virtio_user_dev_init fails"); virtio_user_eth_dev_free(eth_dev); goto end;